Photoluminescent material for the highway marking and the highway structure

FIELD: highway engineering; highways structures and markings.

SUBSTANCE: the invention is pertaining to the field of highway engineering, mainly, to highways structures and markings, in particular, to photoluminescent material for the highways marking and to the highway structure. The invention presents the new photoluminescent material used for marking the highways traffic lanes. The photoluminescent material for the traffic lanes marking is made in the form of the paste containing: from 7 up to 95 mass % of the transparent polymeric component selected from the group consisting of the methacrylic acrylic component, the component of the type of non-saturated polyester, the epoxy component and the component of the silicone type, the photoluminescent colorant component with the average diameter of particles from 10 up to 2000 microns selected from the group composed of the material of the type of strontium aluminate and the material of the zinc sulfide type, and including at least one additional colorant component with the average diameter of the particles from 0.1 up to 40 microns selected from the group consisting of the white colorant, the yellow colorant and the orange or red colorant. At that the ratio of the mass of the photoluminescent colorant component and the mass of the additional colorant components makes of no more than 3.0. The invention also describes the highway structure containing the indicated photoluminescent material. The offered photoluminescent material for the traffic lanes marking possesses the required wear-resistance and resistance to the atmospheric effects, and also obtains the effective photoluminescence and may be used not only for the white lines, but also for the lines of various colors, and the covered with it lines are not slidable.

EFFECT: the invention ensures, that offered photoluminescent material for the traffic lanes marking is wear-resistant, resistant to the atmospheric effects, has the effective photoluminescence, may be used for making the white lines and the various colors lines and such lines are not slidable.

16 cl, 9 tbl, 13 ex

 

The technical field

The present invention relates to photoluminescent materials for road markings and road structures. More specifically, the present invention relates to new photoluminescent materials for road marking, which can be used for marking lines of the road, etc. provide efficient photoluminescence and can find application in the form of white lines or colored lines, such as yellow, orange or any suitable color, due to the suppression of green tones, despite the use of photoluminescent pigment; in addition, the present invention relates to a road structure, which uses this new material.

The level of technology

Well-known photoluminescent pigments that absorb and store light energy from the sun or electric light, and then emit this energy in the form of light. The use of such a pigment for road marking, to use its superior performance with the goal of providing visual detection of such marking in the dark or in dark places. For example, in JP-A-10-82023 proposed photoluminescent material for road marking, which has a transparent or translucent light-diffusing layer located on a white or yellow base layer, and on swear seepage layer is transparent or translucent layer, containing a phosphorescent pigment.

However, this well-known photoluminescent material for road marking is characterized by the fact that its effective photoluminescence lasts a short period of time, making it difficult to provide visual detection markup for a long time. Moreover, due to the presence of phosphorescent pigment, this material for road marking emits light not only at night but in the daytime, resulting in, for example, lines drawn on the road surface, podkashivayutsya green; in the end, the problem arises because such material for road marking can not be used for marking in the form of white stripes. In addition, there is the following disadvantage: when the material for road marking injected pigment, trying to get white, yellow, orange or any other suitable color, the photoluminescence efficiency is reduced, i.e. the photoluminescent properties of the material deteriorate.

For concreteness refer to material described in JP-A-10-82023. When was reproduced the composition described in this document as preferred, the photoluminescence efficiency was low, and color were obvious green tint, due to the presence of phosphorescent pigment, Raza is Tate what turned out to be, this composition cannot be used for road marking in white.

In addition, in the case of conventional marking materials, although it is applied to the surface of the road, rarely pay attention to the lack of slip in the markup, so for photoluminescent materials for road markings serious problem is the prevention of slip that occurs when the wetting markup water or contamination of its products.

In connection with the foregoing, the present invention is to solve known problems described above, and the creation of new photoluminescent material for road marking, which is suitable for marking lanes of the road, has the required wear resistance and resistance to atmospheric influences, characterized by high efficiency photoluminescence and can be used not only in the form of a white line, but in the form of lines of different colors due to the suppression of the green tones, and in addition, is not slippery.

The invention

To achieve the above and other objectives of the present invention in its first aspect provides the creation of a photoluminescent material for road marking, in which the polymer paste containing a transparent polymer component and photoluminescent pigment component is applied on the surface is knosti road with the formation of photoluminescent layer, moreover, the polymer paste contains by weight from 7 to 95% transparent polymer component relative to the total mass of the polymer paste.

In its second aspect the present invention provides for creating a photoluminescent material for road marking, in which the average diameter of the particles of photoluminescent pigment component is in the range from 10 to 2000 microns.

In its third aspect the present invention provides for creating a photoluminescent material for road marking, in which the polymer paste contains as a component as photoluminescent pigment component, and other pigment components.

In its fourth aspect, the present invention provides for creating a photoluminescent material for road marking, in which the average particle diameter of these other pigment components is in the range from 0.1 to 40 microns.

In its fifth aspect, the present invention provides for creating a photoluminescent material for road marking, in which these other pigment components are at least one pigment selected from the following group: white pigment, yellow pigment and orange or red pigment.

In its sixth aspect, the present invention provides for creating a photoluminescent material for the road marking, in which the ratio of (A) the mass of photoluminescent pigment component (A) to the mass of other pigment component (b) is not more than 3.0.

In its seventh aspect, the present invention provides for creating a photoluminescent material for road marking, in which the white pigment component is used, the oxide or complex oxide of zirconium.

In its eighth aspect, the present invention provides for creating a photoluminescent material for road marking, in which the proportion of the oxide or complex oxide of zirconium in the polymer paste is by weight from 0.1 to 5.0% relative to the total mass of the polymer paste.

In its ninth aspect, the present invention provides for creating a photoluminescent material for road marking, in which the viscosity of the transparent polymer component is not less than 1 PA·with (at 20°).

In its tenth aspect, the present invention provides for creating a photoluminescent material for road marking, in which the content of air bubbles per unit volume of polymer paste does not exceed 2%.

In its eleventh aspect, the present invention provides for creating a photoluminescent material for road marking, in which the polymer paste is formed by mixing under reduced pressure who is the ear.

In addition, in its twelfth aspect, the present invention provides for creating a photoluminescent material for road marking, representing any of the above photoluminescent materials for road marking, in which the polymer paste is added transparent placeholder.

In its thirteenth aspect, the present invention provides for creating a photoluminescent material for road marking, in which a transparent placeholder represents at least one material from the following group: quartz rock, fused silica and glass.

In its fourteenth aspect, the present invention provides for creating a photoluminescent material for road marking, in which quartz rock, fused silica and glass are composed of particles with diameters from 0.3 mm to 10 mm and the ratio of their mass to the total mass of the polymer paste is from 0.1 to 6.

In its fifteenth aspect, the present invention provides for creating a photoluminescent material for road marking, which is one of the above photoluminescent materials for road marking, which is deposited on the surface of the road.

In its sixteenth aspect, the present invention provides for creating a photoluminescent material for road marking, which is the od of them from above photoluminescent materials for road marking, when forming polymer which paste is applied to the road surface and to cure this polymer paste transparent filler is dispersed so that it is absorbed into the photoluminescent layer to a position in which at least part of it is over the photoluminescent layer.

In his seventeenth aspect the present invention provides for creating a photoluminescent material for road marking, in which the photoluminescent layer is immersed at least 50% of the volume of each of these transparent placeholders.

In his eighteenth aspect the present invention provides for creating a photoluminescent material for road marking, in which the transparent filler is 0.05-5 mm from the liquid surface part of the polymer paste.

In his nineteenth aspect the present invention provides for creating a photoluminescent material for road marking, in which the thickness of the polymer paste is from 1 to 5 mm

In his twentieth aspect the present invention provides for creating a photoluminescent material for road marking, in which the transparent filler is at least one material from the following group: quartz rock, fused silica and glass, and its particles have a diameter of from 0.3 to 10 mm, and RA is seiwald in an amount of from 1 to 30 kg/cm 2.

In its twenty-first aspect of the present invention provides for creating a photoluminescent material for road marking, the formation of which is transparent filler, unveiled earlier in the aspects from the twelfth through the fourteenth, is added to the polymer paste, which is applied to the road surface and hardens, and then the surface of the solidified polymer paste is subjected to rough grinding or machining water jet to remove the hardened surface portion of the polymer paste.

In its twenty-second aspect of the present invention provides for creating a photoluminescent material for road marking, in which the hardened surface portion of the polymer paste is removed to a depth of from 0.1 to 2 mm from its surface.

In its twenty-third aspect of the present invention provides for creating a photoluminescent road structure in which any of the above materials for road markings painted on the road surface.

In its twenty-fourth aspect of the present invention provides for creating a photoluminescent road structure, in which the road surface, on which is applied a material for road markings pre-applied white underlayer.

In its twenty-fifth aspect of the present invention PR is creating a photoluminescent traffic patterns, in which the material for road markings painted on the road surface or on the white underlayer using an intermediate primer layer.

In its twenty-sixth aspect of the present invention provides for creating a photoluminescent road structure in which the road surface is pre-treated to make it rough.

Brief description of drawings

Figure 1 shows a cross-section showing the water jet processing, such as processing,

figure 2 shows the cross-section, showing the immersion transparent placeholder.

Detailed description of the invention

Below with reference to accompanying drawings described preferred embodiments of the present invention.

The invention primarily differs proposed material for road marking, which has a high photoluminescence efficiency and useful for marking lanes on the road, etc. in the form of white lines or lines of any other colour, due to the suppression of green tones. This material for road marking is such a material, the formation of which the polymer paste containing a transparent polymer component and photoluminescent pigment component, is applied to the road surface with the formation of photoluminescent layer

As the transparent polymer component may use a transparent polymer components, which are able to form a paste, transparent, and in addition, is able to harden after application to the surface of the road. There is no need to mention that they should be durable as marking lanes of the road and the like, that is, it must possess sufficient strength or stability, such as resistance to weathering, lightfastness and water resistance. Mention can be made of transparent polymer components of different types, for example: methacrylic component, an acrylic component, a component of the unsaturated polyesters, epoxy component, a silicon component, and other suitable polymeric components.

The term "transparent"used in relation to the transparent polymeric components in this description, means a condition that is characterized by a high transmittance of light and the ability to paint it white or other colors while maintaining a high transmittance of light. Usually transparent polymer component has a transmittance of 70% or higher, preferably 85% or higher in terms of transmittance of ultraviolet radiation.

Since the transparent polymer components used to create the polymer paste, acceptable use is the W in liquid, viscous or syrupy state. For this purpose, for example, possible to use them in the condition in which the mixed polymer and monomer. Namely, they can be in any of the following conditions:

(1) the polymer as such;

(2) the state in which the polymer and monomer are mixed with each other;

(3) the state in which the polymer and oligomer are mixed with each other;

(4) the state in which the oligomer and monomer are mixed with each other;

(5) the state in which the polymer, oligomer and monomer are mixed with each other.

Transparent polymer component as a basic component, which forms a polymer paste, provides adhesion photoluminescent layer, necessary for marking lines, etc. on the surface of the road, or performs the role of a binder for dispersion photoluminescent pigment and the like, and in addition, after setting ensures transparency, moisture resistance, abrasion resistance, etc. According to the present invention, the number of mixed transparent polymer component, referred to the total mass of the polymer paste is by weight from 7 to 60%. When its amount exceeds 95%, it is impossible to achieve high efficiency photoluminescence, because photoluminescent pigment or component cannot be added in a proper amount. If you use the material for marking the surface of the road, on which there is a movement of self-propelled vehicles is taken into account the surface strength, abrasion resistance and so on, from a practical standpoint, it is preferable that the proportion of transparent polymer component mass was 60% or less. On the other hand, if the content of the transparent polymer component is too small, for example less than 7%, when applied polymer paste on the surface of the road for marking lines, etc. have difficulty achieving sufficient adhesion, water resistance and other parameters of the photoluminescent layer. When the polymer paste is directly applied to the surface of the road base, such as concrete or asphalt surface, the number of transparent polymer typically comprises by weight 20% or more, whereas when applied using an intermediate primer layer this amount is preferably 15% or more, although the share of the transparent polymer component should vary depending on its type. From the point of view of practicality, in the case of direct deposition of transparent polymer to achieve the desired high density, suitable adhesion or appropriate strength of the surface, and also to achieve durability, moisture resistance and high efficiency photoluminescence, valueproposition, to the specified number lying in the range from 20 to 40%.

In addition, it is preferable that the viscosity of the transparent polymer component was 1 PA·s and more (at a temperature of 20° (C), and more preferably 3 PA·s and more (at a temperature of 20°). The use of transparent polymeric component with such a relatively high viscosity allows to achieve what photoluminescent polymer component with particles of relatively large diameter, from which you can expect high efficiency photoluminescence, will be scattered evenly, as a result, it is possible to achieve high efficiency photoluminescence material for road marking after it cures.

The viscosity of the transparent polymer component can be adjusted not only by the choice of material, but also by controlling the ratio of polymer and monomer in the mixture.

For example, in the case of methyl methacrylate component, the viscosity of the syrup (supplied by Mitsubishi Rayon Co., Ltd. or other companies), in which the polymer of methyl methacrylate and a monomer of methyl methacrylate are mixed with each other, can be changed as shown in table 1, by changing the proportion of the content of the polymer of methyl methacrylate.

Table 1
Viscosity, PA·The percentage content (% by mass) of the polymer of methyl methacrylate
1.525
2.027
3.329
5.531
10.033
14.035

However, when the viscosity is particularly high, almost proving difficult to adulteration photoluminescent pigment and the like in the polymer paste and its uniform distribution.

The above-described transparent polymer component is mixed with photoluminescent pigment component with the formation of a polymeric paste. Thus prepared polymer paste may further contain the following components:

other pigment components

transparent placeholders.

Obviously, you can add other components than those described above, for example, a curing catalyst, an additional curing agent, a means to control the viscosity, means for preventing degradation from ultraviolet radiation, the antifungal agent and the like, provided that they will not obstruct the achievement of the objectives and effectiveness of the proposed invention.

It is assumed that the photoluminescent Pigma is t, designed to add to a transparent polymer component, refers not only to the known, and commercially available pigments, and can be used in various types of suitable pigments. Examples of such pigments include materials such as strontium aluminate and zinc sulfide. You can use photoluminescent pigments with an average particle diameter of 10 μm or more. According to the present invention, this average diameter preferably lies between 20 and 2000 μm, and more preferably ranges from 30 to 300 μm. It is preferable to use particles with a diameter of 100 μm or more.

Previously it was difficult to use photoluminescent pigment particles of such large diameter. This was due to the difficulty of uniform dispersion of photoluminescent pigment with such a large particle diameter.

According to the present invention photoluminescent pigment with such a large diameter particles, which are usually difficult to disperse evenly, can now be dispersed evenly in the polymer paste when using transparent polymer component with a relatively high viscosity, part 1 PA·C and above (at 20° (C)that allows to obtain a homogeneous material for road marking.

Through the use of photoluminescent pigment components a relatively large particle diameter, in photoluminescent pigment component is absorbed a large amount of energy that extends the emission of light.

The number of photoluminescent pigment component in the mixture is usually preferably 5% or higher with respect to the total mass of the pigment paste. If it is less than 5%, it is difficult to achieve the required efficiency of photoluminescence.

In addition, as for the photoluminescence, according to the present invention, it is assumed that the duration of the light emission from the state of saturation was achieved after exposure to light of 200 Lux, created by the source D605 normal light to the brightness of 3 MCD/m2, which is the lower limit at which a person is able to visually detect the contour of the object, preferably should be 8 hours or more. The ratio of photoluminescent pigment component and a transparent polymer component is chosen from this point of view, taking into account combinations with other components.

In addition, the photoluminescent material for road marking according to the present invention to photoluminescent pigment component, you can add other pigment components. The ratio (b/a) mass of photoluminescent pigment component (A) to the mass of other pigment component (B) is 3.0 is less. When this ratio is larger than 3.0, other pigment components, most of which are inorganic particles, camouflage photoluminescent pigment component that hinders the phosphorescence provided by absorption of the light incident from the outside, and the subsequent emission of light.

As for the other pigment components, you can use components in different colors. In the presented examples that relate to the marking traffic lanes, etc. discussed pigments of white, yellow, orange and red colors. As for the white pigment include pigments type zirconium oxide, zinc oxide, titanium oxide and aluminum hydroxide. In addition to the other, from the point of view of luminescence is preferably a white pigment containing any of the oxides or complex oxides, such as zirconium dioxide (Zirconia), zircon (zirconium silicate) and so on, due to the lower masking light compared with other pigments.

As for the yellow pigment, it is possible to list the yellow crowns, cadmium yellow, yellow, Nickel-titanium, etc. with regard to orange or red pigment, you can enumerate colcothar, cadmium red, molybdenum red, etc. of Course, you can apply different pigments having a color other than the above, such as blue, the green circle, black, etc. That applies to these pigmented components, they can be used individually or in combinations.

When one of the above oxides or complex oxides of zirconium mix as a white pigment, it is preferable that its content was by weight from 0.1 to 5.0% relative to the total mass of the polymer paste.

As for the other pigment components, it is preferable that the average size of the particles lying in the range from 0.1 to 40 μm. This is because when the average particle diameter exceeds 40 μm, in some cases, these pigment components mask photoluminescent pigment component.

Obviously, it is possible to use an organic pigment such as in combination with any of inorganic pigments, as well as individually. In addition, according to the present invention can add a transparent filler, such as quartz rock, glass, crystalline quartz, etc.

Transparent filler is effective not only to give a hardened mass that is used as a material for road marking, required physical properties, such as the desired strength or moisture resistance, but also as an amplifier photoluminescent actions photoluminescent pigment, due to the passage of light through the particle filler or diffusion of the races is eaney on the border, due to the transparency of the transparent filler. Moreover, the addition of the transparent filler, as will be described below, allows not only to strengthen photoluminescent function when applied polymer paste on the surface of the road, curing caused by polymer paste and subsequent coarse mechanical polishing this polymer paste or snagging the surface of the water jet, but also provides a no slip material for road marking.

For use as a transparent filler is particularly preferred quartz rock and glass; therefore, they can be used separately or in combination. Preferably, the diameter of the particles lying in the range from 0.3 to 10 mm, and the amount of added filler ranged from 0.1 to 6 by weight of the total polymer paste.

When the particle diameter is less than 0.3 mm, or their proportion in the mixture is less than 0.1, it is difficult to expect the effect of adding a transparent filler. When the particle diameter is more than 10 mm or in a mixture of more than 6 times greater than the polymer paste, deteriorating the strength and other characteristics of the formed mass, which is also undesirable.

You can add other transparent fillers such as inorganic fillers. The particle diameter of such fillers should not offset shall be 0.1 mm, as examples of inorganic fillers include powders of silica, quartz (quartz rock), calcium carbonate, aluminum hydroxide, powder, plastics, glass powder, etc.

According to the present invention in the manufacture of photoluminescent material for road marking for the preparation of polymer pastes, for example, the above-described transparent polymer component is mixed with the photoluminescent pigment component or component containing photoluminescent pigment component, and at least one additional component selected from the group which includes other pigment components and transparent placeholders.

Such preparation by mixing is an essential requirement. Among other things, especially important is the use of photoluminescent pigment with large particle sizes and the use of transparent polymer component with high viscosity as a matrix for uniform dispersion of such photoluminescent pigment.

It should be emphasized that, above all, for the above preparation of polymer paste by mixing, according to the present invention, a method includes maintaining the percentage of bubbles in a unit volume of polymer paste on the level of 2% or less.

In the process at which otopleniya polymer paste by mixing usually carry out mixing, moreover, the mixing should be such that the percentage of bubbles in unit volume of polymer paste was not more than 2%. Thus, you must select a device for mixing, to control the speed of its rotation, atmosphere under stirring, etc.

As mixing air bubbles are formed. Next, there is the following problem: pigment component with particles of relatively small diameter or smaller specific gravity in comparison with the photoluminescent pigment component in the process of formation rises to the surface of the mass, prepared by mixing, with the remaining air bubbles and mask photoluminescent pigment component. If the percentage of air bubbles in a single volume of this mass, prepared by mixing exceeds 2%, the negative effect of this mask can not be ignored.

To control the proportion of these air bubbles is effective preparation of a mixture by mixing with the air pressure below atmospheric to 50 kPa or more. With stirring under a pressure below atmospheric is possible to effectively suppress the residual air bubbles. If the degree of pressure reduction is small, the effect resulting from them, will be expressed enough.

the percent content of air bubbles can be measured by measuring the degree of reduction of the volume of the cooked mass after as it filled a certain vessel, and then the air pressure is reduced to 100 kPa compared with the normal pressure.

In addition, to improve the efficiency of photoluminescence suitable in the preparation of polymer paste by stirring to prevent contamination (mixing with foreign materials). In particular, it is preferable that possibly as much as possible suppressed mixing with such extraneous matter as the metal of the mixing device.

To this should be done so that the surface strength of the inner surface of the mixing vessel or mixing blades that are included with mixing device, was higher than the strength of the pigment or transparent filler. A convenient and effective method is the use of the mixing vessel or mixing blades coated with a transparent or white protective layer. Thus, even if there is an adulteration of small amounts of foreign substances, it will slightly affect or not affect photoluminescent properties.

Examples of the transparent or white protective materials include layers of film of aluminum oxide deposited from the melt, or a ceramic plate, glass, silicone rubber, silicone polymer, a fluorocarbon polymer, the polymer diametermagellan etc.

Polymer paste, made by mixing as described above, is applied to the road surface in a suitable way, and then provide the cure. The result is a material for road marking, which has a predetermined shape and which is formed photoluminescent layer, and is formed of a road structure, which includes material for road marking after application to the surface of the road.

According to the present invention in connection with the deposition of material on the road surface and its subsequent curing in place made several important suggestions.

The first proposal is that, as described above, the polymer paste is mixed with a transparent filler, then the resulting polymer paste is applied on the road surface, provide curing, and then the surface layer of the obtained solidified mass is subjected to rough mechanical grinding or machining water jet.

As described above, as the application of a polymeric pigment paste component having particles of smaller diameter than the photoluminescent pigment, rises to the surface of the polymer paste and, thus, is distributed unevenly, which sometimes prevents the passage of incident light or emitted by photoluminescence radiation. E is whether this effect cannot be neglected, it is advisable to expose the surface of the hardened mass of coarse mechanical grinding or machining water jet to remove the mask layer (or part thereof).

In other words, for example, as shown in cross-section, depicted in figure 1, the transparent filler is first mixed with the polymer paste is then obtained polymer paste is applied on the road surface 1 and utverjdayut, then the surface of the photoluminescent layer 2, which contains a transparent filler is subjected to rough mechanical polishing (A) or processing water jet (B) for a partial withdrawal only surface hardened part of the polymer paste.

After applying the polymer paste its masking effect, i.e. the screening of her light, quite significantly, and in addition, since the pigment component comprises particles of small diameter, most likely its accumulation in the surface layer of pigment paste. The mask layer 4, formed as a result of such accumulation of the pigment component, affects the efficiency of the photoluminescence as passing light shielded. Rough mechanical grinding or machining water jet increases the efficiency of photoluminescence due to the removal of masking layer.

As in the case of coarse mechanical grinding, and machining water jet to remove m is skirmishes layer 4, preferably, the surface of the hardened portion of the polymer paste was removed to a depth of from 0.1 to 2 mm.

As an apparatus for carrying out mechanical polishing can be used various types of devices that use grinding rotation by the rotating disk with diamond grit.

Forming a heterogeneous surface by processing the surface portion of the material, the above-described processing, water jet, in particular, allows to effectively ensure no slip on the photoluminescent material for road marking.

In addition, according to the present invention, the amplification efficiency of photoluminescence and reduced slip, similar to the above case, when carried out prior to the addition of the transparent filler in the polymer paste can be made by applying a polymer paste on road base, the subsequent dispersion of the transparent aggregate caused by polymer paste, and finally immersing the transparent filler in the photoluminescent layer to this state, in which at least part of the transparent filler is out. For example, as schematically shown in section in figure 2, multiple transparent filler 3 is immersed in the photoluminescent layer 2, which was form the Rowan solidification of the polymer paste, once applied on the road base 1, so that at least part of the contour of the cross section of the transparent filler above the surface of the photoluminescent layer.

In this case, the transparent filler is a form of natural stones and their cross section is far superior to the appropriate section of the particles of photoluminescent pigment, is added to the polymer paste. In addition, the transparent filler is more durable and solid and is a quartz rock, fused quartz, glass and the like; each of these materials has a so-called ability to aggregation (merging into one).

Practically, from the point of view of such physical characteristics as strength and resistance to separation when applied to the photoluminescent layer 2 and the introduction to it, from the point of view of improving the efficiency of photoluminescence (compared with the case where the transparent filler is not used), etc., it was found that in the photoluminescent layer 2 must be shipped 50 or more percent of the volume of particles of quartz rock, fused quartz, glass or other similar material, or they should be above the surface of the photoluminescent layer 2 is 0.1-5 mm, in Addition, it is preferable that the diameter of these particles ranged from 0.3 to 10 mm, and more preferably from 2.0 to 3.0 mm

The amount of dissipated transparent filler which may be from 1 to 30 kg/cm 2and preferably from 3 to 10 kg/cm2.

With regard to the practical implementation of the above, after applying the polymer paste on road base 1 transparent filler 3 scatter on applied polymer pasta while it is still in a fluid or paleocortical condition, then allow diffused transparent filler is immersed in a polymer paste under its own weight or, alternatively, by means of additional load applied thereto by the roller and the like, and then the polymer paste hardens, resulting in a transparent filler 3 is embedded in the photoluminescent layer 2, forming with it one whole.

The marking materials made according to the present invention, as described above, significantly improves the efficiency of the photoluminescence as compared with the case where the transparent filler is not used. This is largely due to the fact that in the presence of the transparent filler increases surface area, which decreases the absorbed sunlight or fluorescent light.

In addition, due to the presence of the transparent filler, which acts outward on the upper part of the marking materials after application is formed uneven profile, and this profile reduces the sliding surface is the surface of the material. This lack of slip is very important because when you use this type of material for marking the surface of a pedestrian crossing or a road with a pedestrian walkway reduces the danger of slipping or get into an accident due to slipping.

In addition, from the viewpoint of reducing the slip, it is important to set the size, the amount of dissipated transparent filler portion, and the protrusion of the transparent filler according to the invention, as described above.

In addition, according to the present invention to improve the efficiency of photoluminescence before applying the polymer paste is useful to put in the correct location sublayer white. This sublayer can include not only well-known material, but also various kinds of other materials.

Obviously, according to the present invention in order to enhance adhesion to negotiate not only with the white underlayer, but also to the state and properties of the surface of the road, formed of concrete, asphalt and the like, as well as to improve properties of transparent polymer, can be pre-applied primer, after which the material for road marking, made according to the present invention, is applied on the primer layer and connected to it.

The main purpose of the primer can be deemed the AMB isolation of the road surface and increase adhesion. For the formation of the primer layer can be used known materials, such as urethane rubber, epoxy resin and asphalt. In addition, you can use a transparent polymer component or a similar material, which is photoluminescent material for road marking according to the present invention. In the case of using a transparent polymer component or of similar material, the adhesion between the material for road marking with high light emission constituting the upper layer, and the road surface can be improved through the use of identical or similar components.

As described above, according to the present invention proposed a photoluminescent material for road marking, which is useful for use when marking strips, etc. on the roads, has a high photoluminescence efficiency and can be used to perform white or colored lines, such as yellow, orange or line of any other suitable color, due to the suppression of the green tones despite the use of photoluminescent pigment.

Below for further illustration of the described embodiments of the present invention, which, however, should not be construed as in any way limiting the present invention.

Evaluation of photoluminescent the AI in the described versions of the present invention is carried out in accordance with Japanese industrial standard Fluorescence safety signs" Z9100-1987, that is, after light material standard lamp light source D65 at 200 LX (Lux) to the state of saturation is measured by the time during which the brightness drops to 3 MCD/m2.

Example 1

There were prepared various types of methyl methacrylate syrups, which were mixed polymer of methyl methacrylate and a monomer of methyl methacrylate and which differed in the percentage of polymer of methyl methacrylate and viscosity, and then photoluminescent component and other components were added to the methyl methacrylate syrup with obtaining a mixture of the following composition (in percent by weight):

Methylmethacrylate syrup35,5
The curing agent polymer0,5
Photoluminescent pigment type strontium aluminate
(supplied by Nemoto & Co., Ltd.;
the average particle diameter is 100 μm)52
Aluminum hydroxide (average particle diameter of 8 μm)12

Mixing occurred under reduced pressure of 0.1 ATM. While the percentage of air bubbles was reduced to 1% or less.

Mass is prepared by mixing, is deposited on the surface of the concrete sample with akuu same structure, that and the road surface, and then aterials.

The adhesion strength of the mass subjected to vulcanization molded to the surface of the sample was 150 N/cm2(separation from the concrete base), and the wear resistance was 0.02 g (in accordance with Japanese industrial standard And 1452) with a viscosity in the range from 1.0 to 10.0 PA·with what can be considered a good results.

In addition, to assess the effectiveness of the photoluminescence mass subjected to vulcanization molded, it was measured the time during which the brightness has reached the value of 3 MCD/m2. The results are presented in table 2.

Table 2
The viscosity of the methyl methacrylate syrup, PA· (20°)The time to reach 3 MCD/m2(watch)
0,53
1,08
1,59
2,010
6,013
10,013

Table 2 shows that when the viscosity of the polymer syrup is less than 1.0 PA·it is difficult to achieve a time of recession photoluminescence to brightness 3 MCD/m2in excess of 8 hours. On the other hand, it was found that when the viscosity of the polymer syrup exceeded 1.0 PA·time, fall time fot the luminescence to the brightness of 3 MCD/m 2more than 8 and even 14 hours.

Example 2

The mass is subjected to vulcanization molded, was prepared in a manner similar to that described in example 1, except that was used methylmethacrylate syrup with a viscosity of 6 PA·and photoluminescent pigments type strontium aluminate had different average particle diameter. In all cases the adhesion force to the surface of the sample ranged from 100 to 160 N/cm2(separation from the concrete base) and wear resistance ranged from 0.01 to 0.02 g (in accordance with Japanese industrial standard And 1452).

For each sample was measured the time during which the brightness has reached the value of 3 MCD/m2. The results are presented in table 3.

Table 3
Average particle diameter (μm)The time to reach 3 MCD/m2(watch)
53
108
309
5011
10014
15018
30022

It was confirmed that the significant increase in the efficiency of the photoluminescence can be achieved by the use of photoluminescent pigment component with particle and large diameter. On the other hand, it was confirmed that when the diameter of the particles of photoluminescent pigment component is less than 10 μm, the time decay of photoluminescence to brightness 3 MCD/m2does not exceed 8 hours.

Example 3

Mixing was carried out by a method similar to that described in Example 1, except that was used methylmethacrylate syrup with a viscosity of 6 PA·and changed the parameters of the atmosphere while stirring, and was also used different devices for mixing.

For each case was measured by the time during which the brightness has reached the value of 3 MCD/m2. The results are presented in table 4. In table 4 the value of reduction of pressure (kPa) is given relative to the normal pressure.

Device for mixing a, b and C had the following characteristics:

A: As the inner surface of the mixing vessel and mixing blade is made of stainless steel;

In: The same as in case A, except that the surface of the mixing blades is covered with a silicone polymer;

With: The same as in case A, except that the inner surface of the mixing vessel and the surface of the mixing blades is covered with a silicone polymer.

Table 4
The magnitude of the reduced pressure (kPa)Device for mixingThe time to reach 3 MCD/m2(watch)
90And13
80And13
60And13
50And8
30And7
50In10
60In15
8018

Confirmed that it is expedient to reduce the pressure to 5 kPa or more, as well as to cover the inner surface of the mixing vessel and the surface of the mixing blades organosilicon polymer.

Example 4

Was prepared methylmethacrylate syrup, in which the polymer of methyl methacrylate and a monomer of methyl methacrylate are present in a mixture (viscosity of 6.0 PA·20°), and then thereto were added photoluminescent pigment component and other components with the formation of the following composition (in percent by weight):

Methylmethacrylate syrup35,5
The curing agent polymer0,5
Photoluminescent pigment type aluminum is the strontium
(supplied by Nemoto & Co., Ltd.;
the average particle diameter of 150 μm)54
Other pigments (average particle diameter of 30 μm)10

The mass is subjected to vulcanization molded, was prepared in a manner similar to that described in example 1, and were measured corresponding values of time for which the brightness has reached 3 MCD/m2. The results are presented in table 5.

Table 5
Other pigmentsThe time to reach 3 MCD/m2(watch)
The titanium oxide8
Aluminum hydroxide15
The titanium oxide (50)

Aluminum hydroxide (50)
10
Zircon18
Zircon (50)

Aluminum hydroxide (50)
17

It was found that because the zircon has a slight masking effect as the white pigment, it is an excellent material from the point of view of efficiency of photoluminescence.

Example 5

In example 4 as "other" components was taken as aluminum hydroxide, this has changed the relationship between photoluminescence PI is the element (A) and aluminum hydroxide (In). In these conditions were measured corresponding values of time for which the brightness has reached 3 MCD/m2. The results are presented in table 6.

Table 6
The mass ratio (b/a)The time to reach 3 MCD/m2(watch)
0,15015
0,18515
1,0514
2,259
3,546

It was confirmed that when the mass ratio b/a exceeds 3, the photoluminescence efficiency decreases rapidly.

Example 6

In example 4 as "other" components was taken as aluminum hydroxide, thus changing the ratio between the respective components. In these conditions were measured corresponding values of time for which the brightness has reached the value of 3 MCD/m2. The results are presented in table 7.

Table 7
Methylmethacrylate syrupPhotoluminescent pigmentAluminum hydroxideThe time to reach 3 MCD/m2(watch)
15,254,030,014
22,520,015
35,554,010,015
58,635,0of 5.410
86,410,03,08
96,03,503

Example 7

In example 4 as "other" components was taken as aluminum hydroxide, the concentration of photoluminescent pigment type strontium aluminate was set equal to 24,0%, and as a transparent filler was added a powder of quartz rock with particles of average diameter, the proportion was 30,0%.

The time at which the brightness has reached the value of 3 MCD/m2when this preparation was satisfactory, exceeding 8 hours, despite the fact that the number of photoluminescent pigment component was significantly reduced.

The content of the transparent component (C) to the filler (D) the weight was in this case 0,845. When you change this ratio to 3.0, the time during which the brightness has reached the value of 3 MCD/m2that was 9 hours.

Example 8

In example 4 as "other" components was taken as aluminum hydroxide, the mass subjected to vulcanization molded, was prepared using the cream is iordanescu polymer (KE1310S, supplied by the company Shin-Etsu Chemical Co., Ltd.), and not on the basis of methyl methacrylate syrup. Viscosity was 50 PA·with (at 20°).

The time at which the brightness has reached the value of 3 MCD/m2that was 14 hours. Therefore, we confirmed the possibility of achieving good characteristics of photoluminescence.

Example 9

In example 7 after application of a polymeric paste with the mass ratio (D/C=3, the surface of the hardened mass having a thickness of 3 mm, was subjected to processing, water jet, which was removed near-surface region with a thickness of 0.5 mm and the surface became rough.

For such a surface slip resistance BPN (Standard American society for testing and materials (ASTM A) was 65 for wet surface and 70 for a dry surface, which allows to evaluate the resistance to sliding as excellent. In addition, it was confirmed that the time during which the brightness reaches a value of 3 MCD/m2increases for 9 hours, measured before treatment, up to 10 hours.

Example 10

In example 4, after application of the polymer paste of aluminum hydroxide, taken as "other" components, 4 mm thick, up to solidification of the paste was dispersed glass powder with a particle diameter of from 1 to 5 mm and a density of 5 kg/m3after which the material is hardened in this state, when ketorolaco 55 percent of the volume of each particle was immersed in it and every bit played out to a height of from 0.1 to 1.4 mm

For such a surface slip resistance BPN (Standard American society for testing and materials (ASTM A) was 66 for wet surface and 69 for a dry surface, which allows to evaluate the resistance to sliding as excellent. In addition, it was confirmed that the time during which the brightness reaches a value of 3 MCD/m2increases of up to 17 hours.

Example 11

Was used polymer paste of example 1 with a viscosity of 6 PA·C. After as a sublayer on the surface of the sample of asphalt pre-applied white paint (thickness 3 mm), designed for road marking, this sublayer was applied polymer pasta and ensured its cure.

We measured the time during which the brightness reaches a value of 3 MCD/m2and the initial brightness after 15 minutes. The results are summarized in table 8. It was found that the presence of white sublayer can significantly improve the efficiency of photoluminescence.

Table 8
Color sublayerThe time to reach 3 MCD/m2(watch)The source brightness (3 MCD/m2)
White18482
Silver16366
Asphalt surface 16206

Comparative example 1

The mass was prepared according to the method, opened in JP-A-10-82023. We measured the duration of the photoluminescence. Even the best result showed that the time at which the brightness reaches a value of 3 MCD/m2is 5 hours and 15 minutes. In addition, there was significant color saturation of the light emitted by the phosphorescent pigment (green).

Example 12

In accordance with Example 1, the coating thickness of 2 mm on the sample of concrete pavement was used polymer paste with a viscosity of 6 PA·with (at 20°S) and quantitative value of 28.5.

The adhesion force, as in the case of using a sealant, and without it, was investigated by immersing in hot water (60°). The results are shown in table 9.

Table 9 shows that even in the absence of sealant adhesion strength is sufficient, and the sealant further improves adhesion force.

Table 9
SealantAdhesion strength after one week (N/cm2)Adhesion strength after two weeks (N/cm2)
No142134
Urethane359340
metilmetakrilata 265260

(Methylmethacrylate sealant contained basically the same polymer component, and a polymer paste).

Example 13

An experiment was conducted similar to example 12, in relation to the asphalt surface.

The sealant for forming the primer layer was not used.

In the adhesion strength after one week and after two weeks amounted to 332 and 330 N/cm2respectively.

As described in detail above, according to the present invention proposed a new photoluminescent material for road marking, which can be used for marking lines of the road provides the desired wear resistance and resistance to weathering, has a high photoluminescence efficiency and can be used in the form of white lines or different types of colored lines due to the suppression of the green tones, and in addition, provides a no slip.

1. Photoluminescent material for road marking in the form of a polymer paste, which is applied to the road surface for forming a photoluminescence layer, containing by weight from 7 to 95% transparent polymer component relative to the total mass of the polymer paste, with a transparent polymer component selected from the group consisting of methacrylic component, acrylic is the first component, component type unsaturated complex polyester, epoxy component and the component silicone type, photoluminescent pigment component with an average particle diameter of from 10 to 2000 μm, selected from the group consisting of a material such as strontium aluminate and material type zinc sulfide, and at least one additional pigment component with an average particle diameter of from 0.1 to 40 μm, selected from the group consisting of a white pigment, yellow pigment and orange or red pigment, the ratio (b/a) mass of photoluminescent pigment component (a) and the additional mass pigmented components (In) is not more than 3.0.

2. Photoluminescent material according to claim 1, in which additional pigment component is a white pigment component selected from the oxide or complex oxide of zirconium.

3. Photoluminescent material according to claim 2, in which the content of the oxide or complex oxide of zirconium in the polymer paste is by weight from 0.1 to 5.0% relative to the total mass of the polymer paste.

4. Photoluminescent material of claim 1, wherein the viscosity of the transparent polymer component is not less than 1 PA·20°C.

5. Photoluminescent material according to claim 1, in which the content of air bubbles per unit volume of polymer paste does not exceed 2%.

6. Fataly instantly material according to claim 1, in which the polymer paste is formed by mixing under reduced pressure.

7. Photoluminescent material according to any one of claims 1 to 6, in which the polymer paste is added to a transparent filler with a particle diameter of from 0.3 to 10 mm selected from the group consisting of quartz rock, fused silica and glass, the content of the transparent filler by weight is from 0.1 to 6 with respect to the total mass of the polymer paste.

8. Photoluminescent road structure in which a material according to any one of claims 1 to 7 is applied to the surface of the road.

9. Photoluminescent road structure, obtained by applying a polymer paste according to any one of claims 1 to 7 on the road surface and dispersion from 1 to 30 kg/cm2transparent filler with a particle diameter of from 0.3 mm to 10 mm selected from the group consisting of quartz rock, fused silica and glass, before curing the polymer paste, with a transparent filler is immersed in it to a position in which at least part of it sticking out.

10. Photoluminescent road structure according to claim 9, in which is immersed at least 50% of the volume of a transparent placeholder.

11. Photoluminescent road structure according to claim 9, in which the transparent filler is 0.05-5 mm from the liquid surface part of the polymer paste.

12. Photolumi Santa road structure of claim 8 or 9, in which the thickness of the polymer paste is from 1 to 5 mm

13. Photoluminescent road structure of claim 8 or 9, in which the transparent filler is added to the polymer paste, which is applied to the road surface and hardens, and then the surface of the solidified polymer paste is subjected to rough grinding or machining water jet to remove the hardened surface portion of the polymer paste.

14. Photoluminescent road structure according to item 13, in which the hardened surface portion of the polymer paste is removed to a depth of from 0.1 to 2 mm from its surface.

15. Photoluminescent road structure of claim 8 or 9, in which the road surface, on which is applied a material for road markings pre-applied white underlayer.

16. Photoluminescent road structure of claim 8 or 9, in which the material for road markings painted on the road surface or on the white underlayer using an intermediate primer layer.



 

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