Heat protective dye

FIELD: chemical industry, paint-vehicle systems, in particular heat protective dyes.

SUBSTANCE: claimed dye contains ceramic and corundum microspheres; resins, selected from group including silicone resin, polyesterepoxy resin, acrylic resin dispersions as binder; pigment; and aluminum powder as deflector. Such composition provides reduced heat loss into environment. Obtained dyes have thermal gradient, improved heat-retention properties and strength, and useful in corrosion and heat-loss protection of building construction, transport, gas and oil lines, heating systems, etc.

EFFECT: easier method for dye production; strength and homogenous heat protective dye layer of improved adhesiveness.

2 cl, 3 tbl

 

The invention relates to the chemical industry, in particular to thermal paints that reduce heat loss into the environment, buildings, utilities or gas pipelines, having a temperature gradient functions highly effective thermal insulation, high strength characteristics, which allow them to be used in the construction of buildings and facilities, for protection against corrosion and heat pipelines, oil pipelines, centralized and local teplosnabzheniya, mobile transport like road, rail, river and Maritime transport.

The use of a thermo-protective paints (TCC) as primers before applying fire-retardant paints can be used to increase the time of fire resistance of buildings and structures by 20-30%. The TCC can be used as thermal insulation with protective properties against stray currents under the water (do not use in sewers and areas of permafrost zones). Translucent TCC suitable as energy saving, waterproof and finishing materials in the creation or restoration of residential and industrial buildings, preventing radiant and convective Teploobmennik between the surface of the coated material and the environment.

From the local counterparts, such as coating of acrylic water-dispersion paint with vakuumirovaniya ceramic microspheres for termokhimicheskogo cover “Thermo-shield”, “Thermo-shield Exterior, Thermo-shield Interior”, are recommended as thermal insulation material for interior and exterior surfaces of the enclosing structures of buildings and constructions. All these compositions are characterized by the fact that the density of the microspheres in the dry state is 1000-1100 kg/cubic meter, due to the low strength of the microspheres applied special technology application (pistolet)(.http://www.thermo-shield.sky.ru/komp.htm, 22.07.2003).

Known insulating paint coating on the basis of application of inorganic binders, mineral fillers and additives: fibrous matter, asbestos, vermiculite, perlite, etc.

Obtained on this basis coatings have high reflectivity and low thermal conductivity. All of these heat-insulating coating or insulating materials based on them ineffective for economic and technological reasons(U.S. Pat. U.S. No. 4433020, 1984).

The closest similar thermal paint is a paint that contains evacuated microspheres, binder, pigment - titanium dioxide and additives (see EP No. 1111144 A1, E 04 In 1/76, 2001).

The aim of the invention is the creation of effective energy saving feature is the fact that technologies based on application of the TCC to reduce heat loss to the environment from sources of heat, buildings, structures, utilities.

The invention

Thermal paint contains evacuated microspheres, a binder, a pigment and an additive, characterized in that as the vacuum microspheres it contains ceramic microspheres or corundum density of 300-400 kg/m3with the following mass distribution of the microspheres in size, wt.%:

the base diameter of 30-60 μm 45-55

the diameter of 3-10 μm 15-17

diameter - 11-20 µm 8-10

diameter - 21-30 ám 6-8

diameter - 61-70 μm 9-11

diameter - 71-80 μm 4-6

diameter - 91-100 2-4 µm,

the binder contains a resin selected from the group comprising: silicon, polyetheramine, acrylic dispersions, as an additive - reflector - aluminum powder in the following ratio of ingredients, wt.%:

the above evacuated microspheres - 55-70;

the pigment is 0.1 to 0.6;

reflector - aluminum powder - 2,0-5,0;

the above-mentioned binder is 30-35.

As a pigment used titanium dioxide or aluminum trihydrate.

As a solvent for polietilenoksidnye resins used a solution of 30% bitumen white spirit and xylene 30% of the total mass of solvent.

Achieved by the invention of the technical result is to increase insulation, thermal performance of insulation materials on the bases the products paint and varnish production using ceramic microspheres, chemicals and fillers, to increase the strength of adhesion with the surface to be protected, robust and homogeneous insulation layer, as well as the provision of preserving it under high temperatures (up to 250°C), vibration, simplification of manufacturing technology TCC and accessibility to mass application, for example, using a conventional paint tool (gun).

The production of the TCC based on the preparation of the dry components, component 65-70% of the total volume weight and the remaining 30-35% form binder, commercially available, for example epoxy and polyetheramine resin, water-dispersed acrylic, polyvinyl acetate copolymers, such as acrylic or acrelolocna dispersion.

To extend the range of the physical properties of the TCC in the chemical composition of the dry components is injected aluminum powder, and to increase its resistance to water added to a solution of bitumen in mineral spirit and xylene 30% of the total mass of solvent.

Chemical composition, preparation method and application to the surface of thermal protective coating plays an important role in the quality indicators TCC, such as the layer height, the diameter of the ceramic or refractory microspheres, their uniform distribution throughout the volume of a homogeneous suspension that Zn is a major determinant of the strength and elasticity of the resulting heat-resistant coating of the working surface.

Depending on the binder TCC apply to various places inside environmentally friendly acrylic dispersions), chemical - and water-resistant (polyetheramine and silicone varnishes). The choice of the binder in the composition of the TCC is determined by the expediency of application, cost, and requirements for thermophysical properties of the painted surface of this type of materials or structures (see table No. 1 table No. 2).

The invention can be used to protect metal, concrete, brick, plaster, wood, polymer, cable structures, where there is a need for thermal and waterproofing.

The invention provides for receiving paint with excellent thermal characteristics in a simple enough technology available materials domestic production.

We offer paint TCC is characterized by the fact that the microspheres have a density of 300-400 kg/m3and their strength allows the use of conventional techniques for painting, in addition to the dry component of the set vacuum microspheres depending on the applications and purposes, the choice for binding (see table 1). As the base amount is 45-55% of the microspheres, using microspheres with a diameter from 30 to 60 μm, the diameter of 3-10 μm - 16%, 11-20 μm to 9%,21-30 ám - 7%, 61-70 μm - 1%, 71-80 μm - 5%, 91-100 μm - 3%. The effect of heat-reflective capacity is achieved due to the low thermal conductivity and high reflectivity is used microspheres. In other words, we can say the heat flux from the heated surface of the receiving layer of the TCC, as radiation and heat conduction, subject to probabilistic laws of chaos theory itself, reflected in spherical microspheres, suspended in the direction of the gradient of the temperature difference. Within the achieved production technology microspheres can create colors TCC with predetermined properties on the durability of the paint thickness of the coating depending on the destination of the treated surface. The wall thickness of the microspheres in the range of 2-3 microns. As solvents for the manufacture of TCC depending on the binder used white spirit, xylene, butyl acetate or water (see table No. 3). The TCC is applied in different ways on metallic, ceramic (brick) or a wooden surface with a spatula, brush or spray gun.

TCC - homogenous suspension with the inclusion microceramic or corundum vacuum microspheres having a low thermal conductivity in comparison with the known insulating materials, and with small geometrical dimensions for the thickness of the insulating layer, since the diameter of the micro is fer, used in the manufacture of paint, is 3.0-100 μm, including chemical additives, fillers, pigment, is produced based on the binder varnish: colorful, parquet (polietilenoksidnye and silicone resins, acrylic-aqueous dispersions). When applied on the surface of metal, wood or other products paint layers form while drying, opaque or translucent coating that protects the surface of metal or wood from exposure to aggressive agents, giving it the appearance and holding the temperature gradient of up to 250°when the thickness of the ink layer insulation up to 1-5 mm, which is equivalent to 100-150 mm layer in known insulating materials (e.g. fiberglass). When applied to the surface of the material or product-based paint (TCC) forms a protective insulating layer made of ceramic or refractory microspheres of different size diameter, forming a dense packing in the solution of the binder.

The composition of the dry part contains, in mass parts: 65-70% ceramic or refractory microspheres with a diameter of 3 to 100 μm, which at a minimum layer thickness provides the necessary density filling space in this layer and the reflection of the flow of heat radiation from the surface.

The composition of the TCC, for example, contains, in wt.%

Ceramic vacuumized microspheres - 55-70;

The pig is UNT - 0.1 to 0.6;

Aluminum powder - 2,0-5,0;

Binder (see table 1) - 30-35;

The composition of the TCC may contain a dispersant (talc) in an amount of 0.1 to 1.0 wt.%.

In this part of aluminum powder acts as a heat reflector. Improving the waterproofing provides a solution of bitumen in white mineral spirits and xylene.

Note: 1. To cover with a protective varnish +: TCC applicable with the appropriate binding when exposed to vapors of corrosive liquids requiring coatings protective lacquer layer 0,10 mm 2. - TCC is not applicable with the appropriate binder in the presence of vapors, and corrosive liquids.
Table 1
 A binder for the metal, wood, brick, concrete, plaster, cables, polymers
 1234
The limits of t °C(-50)-(+250)(-50)-(+250)(-40)-(+90)(-40)-(+90)
ApplicationsCranioleuca Example-CO-060Polietilenoksid Example - EF-070 +solution bitumenDispersion:acrylic latex.Allometrically PVA, acrylic-50. E-P-50 AB-498-I, Novopol-110, ADSB-95
Indoors++++
Direct atmospheric influence++To cover with a protective varnish ++
A pair of aggressive liquids++-To cover with a protective varnish +

Table 2
№ p/pMaterialThickness mm

When Udis.=0,55±0,05
1.Pipeline metal.1-1,5
2.Tree wall0.5 to 1.2
3.Polymers0,6-0,9
4.Cable0,6-0,9
5.Metal roofs0,8-1,2
6.Brick or plastered surface.0.5 to 1.2

Examples of specific compounds thermal paints are shown in table 3.

Table 3
NamePart 1, wt.%Part 2, wt.%Part 3, wt.%
Microspheres evacuated ceramic MS-EAP-096055-
Microspheres evacuated the bark of the stock “T” --60
Polietilenoksidnye resin - EP-0793030-
Organosilicon polymers - WITH-060--35
The aluminum powder554,8
Pigment: 1-2 - titanium dioxide; 3 - aluminium trihydrate0.20,50,2
Solvent4.8--
Bitumen (solution in white spirit and xylene)-9.5-

1. Thermal paint containing evacuated microspheres, binder, pigment and additives, characterized in that as the vacuum microspheres it contains ceramic microspheres or corundum density of 300-400 kg/m3with the following mass distribution of the microspheres in size, wt.%:

The base diameter of 30-60 μm 45-55

The diameter of 3-10 μm 15-17

The diameter 11-20 µm 8-10

The diameter 21-30 ám 6-8

The diameter 61-70 μm 9-11

The diameter 71-80 μm 4-6

The diameter 91-100 μm 2-4

the binder contains a resin selected from the group comprising silicon, polyetheramine, acrylic dispersions, as an additive - reflectors for safe d the j o y aluminum powder, in the following ratio of ingredients, wt.%:

The above evacuated microspheres 55-70

The pigment is 0.1 to 0.6

The reflector is aluminum powder 2,0-5,0

The above binder 30-55

2. Paint according to claim 1, characterized in that the solvent for polietilenoksidnye resins used a solution of 30% bitumen white spirit and xylene 30% of the total mass of solvent.



 

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Heat protective dye // 2245350

FIELD: chemical industry, paint-vehicle systems, in particular heat protective dyes.

SUBSTANCE: claimed dye contains ceramic and corundum microspheres; resins, selected from group including silicone resin, polyesterepoxy resin, acrylic resin dispersions as binder; pigment; and aluminum powder as deflector. Such composition provides reduced heat loss into environment. Obtained dyes have thermal gradient, improved heat-retention properties and strength, and useful in corrosion and heat-loss protection of building construction, transport, gas and oil lines, heating systems, etc.

EFFECT: easier method for dye production; strength and homogenous heat protective dye layer of improved adhesiveness.

2 cl, 3 tbl

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