Method of manufacture of a rubber coating

FIELD: construction; manufacture of porous coatings used on different objects of construction and production of sport and other destination items.

SUBSTANCE: the invention is dealt with methods of manufacture of the porous coatings used on different objects of construction - for building of footways, floors on nursery and running-tracks on sports grounds and athletic fields, and also for manufacture of floor mats of a broad spectrum of destination and rugs for use in means of transport, in rooms and at premises entrances, in swimming and diving pools, etc. For manufacture of a filler for such a coating the conduct crushing of the waste rubber products of bus and rubber industry. In the capacity of the waste products are used aged or unused tire casings, that are crushed into the grits of sizes up to 10 mm. At that as the filler they use from 1 up to 6 mass shares. The binding agent based on polyurethane is taken in amount of 0.8 up to 1.2 mass shares. Coloring agent is taken in amount of 0.03 up to 0.1 mass shares. In the capacity of the coloring agent the dry paints such as iron oxide may be used. Process of stirring is conducted in a screw-type mixer with a reversing drive and a horizontally located screw, the overhead loading of components of the mixture and unloading formulation constituents and its unloading along axis of the axis of the screw at the temperature exceeding 2°С, till production of the homogeneous mass. At that the binding agent is introduced after introduction of the filler and the coloring agent during stirring. Unloading of the produced mass is performed by a screw mixer into a prepared container with consequent stacking on previously prepared surface by an even layer with its final thickness exceeding 3 mm. Then the produced coating is leveled, manually compacted and kept up to its full solidification. The invention makes it possible to simplify the method of coating manufacture at improved quality of items.

EFFECT: the invention ensures simplification of the method of the coating manufacture at improved quality of items.

8 cl, 1 ex

 

The invention relates to methods for producing coatings that are used on various construction sites, for the construction of walkways, sidewalks, coatings on children's and sports grounds, as well as for the manufacture of mats of a wide range of destination and mats for use in vehicles, premises and in front of them, in swimming pools, etc.

A known method of manufacturing a coating, which consists in the fact that preparing a mixture of a filler in the form of powdered cellulose, polymeric binder and a pigment (see EN No. 21785 U1, E 01 5/20, publ. 20.02.2002).

The disadvantage of this method is that the finished product requires hot pressing at a temperature of 250-330°and the resulting coating does not provide the necessary strength and flexibility when exposed to dynamic, especially alternating loads, and the required durability.

A known method of manufacturing a rubber coating, which consists in the fact that they are preparing a filler in the form of crumb rubber and binder, mix these ingredients in the mixer and unload the mixture (see EN No. 2034808 C1, E 01 13/00, publ. 10.05.1995). During the production of this coating requires heating up to 160-180°and the composition of the mixture impose additional bitumen, fibrous filler, antiseptic and other

The disadvantage of this is the manual is that it is also present operation of heating during mixing, extrusion operation in forming the fabric, and a large number of components requires a certain sequence of their introduction into the mixture, which increases the cost and manufacturing process, and finished product. The coating obtained in this way has no porosity and the optimal combination of plastic and elastic deformation at low temperatures and has poor water resistance.

The basis of the invention is to simplify the fabrication coverage while improving product quality.

The technical result consists in the fact that in the manufacture of the porous coating are simple and accessible components that do not require mixing of heat treatment, which is relevant for areas with cold climate. In addition, the paving does not require additional equipment.

The problem is solved in that in the known method of manufacturing a rubber coating, which consists in the fact that they are preparing a filler in the form of crumb rubber and binder, mix these ingredients in the mixer and upload the resulting mixture, made porous coating so that the filler with a grain size up to 10 mm take the number from 1 to 6 parts by weight, a binder based on polyurethane - number is the firmness of from 0.8 to 1.2 parts by weight, add the dye in the amount of from 0.03 to 0.1 parts by weight, the mixing process is carried out at a temperature in excess of 2°With, in a screw mixer with a reversible drive until a homogeneous mass, while the binder is injected after the filler and dye in the mixing process, discharging the resulting mass produce screw mixer in the container and piling on prepared surface in an even layer with a thickness exceeding 3 mm, smooth the resulting surface, compacted manually and incubated until complete solidification.

In addition, with stirring, you can enter the catalyst in the amount of 1% by weight of the mixture.

As the dye can be used dry inks-type iron oxide.

The mixing process is carried out in a screw mixer with a horizontally positioned screw, top loading of the components of the mixture and discharge along the axis of the screw.

In addition, the rubber crumb produced from waste tyre and rubber industry or of synthetic rubber.

As a waste tire industry can be used unused tires.

Before laying the mix on the prepared surface can be placed on her mesh material.

When laying the received weight to the desktop effects what s covered with a film of material, excluding the adherence of the mass to the table.

These characteristics are essential and interrelated causal connection with the formation of the essential features sufficient to achieve a technical result.

Compared to known methods of the claimed method can improve the water resistance of the products, their plastic and elastic properties, as well as to simplify the manufacturing process through the use of small quantities of low-cost components that do not require complicated processing steps and expensive equipment in the production process, and reduce the duration of the production cycle.

The claimed process is as follows.

For the manufacture of filler is produced by crushing waste tire and rubber industry, which can be used are old or unused tires, used or unused rubber shoes, rubber toys, etc. or artificial rubber to a crumb with a grain size up to 10 mm While the filler is taken in an amount of from 1 to 6 wt. including as a polyurethane binder in method use different prepolymers (prepolymers) polyurethane, for example the so-called macrodiisocyanate (prepolymers), which further otverzhdajutsja, e.g. the measures using structuring agents (catalysts, such as water, primary and secondary amines, and ORGANOMETALLIC catalysts, in particular compounds of tin), as well as traditionally used polyurethane resin, as products of the interaction of di - or polyisocyanates with hydroxyl-containing components, such as base system Izolan-SM system Vykort-lM and others that take in the amount of from 0.8 to 1.2 parts by weight of the Dye take in the amount of from 0.03 to 0.1 parts by weight as a dye can be used dry inks-type iron oxide. The mixing process is carried out in a screw mixer with a reversible drive, which can be made with a horizontal or vertical position of the screw, however, it is preferable to use a mixer with a horizontally positioned screw, top loading of the components of the mixture and discharge along the axis of the screw, since it does not require additional equipment for unloading and installation of floor coverings. Mixing is carried out at a temperature in excess of 2°C, to obtain a homogeneous mass. When this binder is injected after the filler and dye in the mixing process. Discharging the resulting mass produce screw mixer in the container, and then placed on a prepared surface in an even layer that is a woman, exceeding 3 mm, smooth the resulting surface, compacted manually, for example RAM, and incubated until complete solidification. In addition, with stirring, you can enter the catalyst in the amount of 1% by weight of the mixture for carrying out the process at low temperatures.

In order to give the floor for more stability and protection from vandalism before laying the mix on the prepared surface can be placed mesh material, and when laying the received weight to your desktop the latest cover with foil or mesh material, precluding adhesion of the mass to the table and the integrity of the coating.

Example. Waste tire and rubber industry, crushed to crumbs with a grain size up to 10 mm, in an amount of 3 parts by weight, the polyurethane prepolymer (prepolymer) CAS 26447-40-5 based macrodiisocyanate in the amount of 1 parts by weight and the dye constituting the iron oxide in the amount of 0.06 parts by weight of stirred in a screw mixer with a horizontally raspolozhennym auger and reverse drive, in which the mixing process thickens the mixture. Loading components of the mixture is produced on top. When this binder is injected after the filler and dye in the mixing process, which is carried out at a temperature in excess of 2°C, to obtain a homogeneous mass. Mixing the OS is p alternately in one and in the other direction by rotation of the screw until a homogeneous colour mass. In addition, with stirring, you can enter the catalyst in the amount of 1% by weight of the mixture for carrying out the process at low temperatures.

In the preparation of the mixture it is necessary that the filler was always dry, and in the junction is not exposed to water, because it will ruin a binder and the mixture as a whole. Fraction of crumb rubber should be the same, because its different dimensions will cause the nonuniformity of coloration mixtures as well as failure to comply with the proportions of parts by weight of mixture, and spoil the appearance of the product.

Discharging the resulting mass produce screw mixer in the container, and then placed on a previously prepared surface or directly from the mixer directly placed on the prepared surface in an even layer with a thickness exceeding 3 mm, smooth the resulting surface, condense his method of tamping, rolled with a light roller and incubated until complete solidification, because the contact of the coating with water vapor contained in the air to hardening of the mixture.

When paving on concrete or asphalt pre-apply primer or primer for a better grip and to avoid humidity. The coating thickness should be not less than 4-5 mm When laying on the ground or sand-gravel mixture, after which the duty to regulate to shed water and thoroughly compacted to a smaller flow of the mixture. The coating thickness should be not less than 15 mm To the ground, you can attach geotextile fabric before laying the mixture to protect the mixture from contact with the ground.

The resulting product corresponds to the requirements specified.

As a result, by using this method you can get a colored solid porous material of crumb rubber, polyurethane binders and pigments that give color, which is applied with a self-leveling method and leveled on desktops or on any surface: soil, sand, concrete, asphalt, granite dumping, etc. At this junction provides a rugged connection to a solid surface. To avoid sticking to desktops, they can be covered with polyethylene or polypropylene mesh used in construction. The coating is seamless and permeable and allows transmission of water for protection from puddles and excellent adhesion to the shoes to prevent slipping. For the possibility of mixing and laying at low temperatures, which is important in Russia, using the catalyst.

The invention meets the criterion of “industrial applicability”because feasible using known materials, means of production and technologies. When production is possible using traditional equipment.

1. The method of producing the texts rubber coating, namely, that prepare a filler in the form of crumb rubber and binder, mix these ingredients in the mixer and upload the resulting mixture, wherein the produced porous coating so that the filler with a grain size up to 10 mm take the number from 1 to 6 parts by weight, a binder based on polyurethane in the amount of from 0.8 to 1.2 parts by weight, add the dye in the amount of from 0.03 to 0.1 parts by weight, the mixing process is carried out at a temperature in excess of 2°With, in a screw mixer with a reversible drive until a homogeneous mass, with a binder is injected after the filler and dye in the mixing process, and discharging the resulting mass produce screw mixer in the container and piling on prepared surface in an even layer with a thickness exceeding 3 mm, smooth the resulting surface, compacted manually and incubated until complete solidification.

2. The method according to claim 1, characterized in that when mixing the injected catalyst in the amount of 1% by weight of the mixture.

3. The method according to claim 1, characterized in that as a dye use dry paint type iron oxide.

4. The method according to claim 1, characterized in that the mixing is carried out in a screw mixer with a horizontally positioned screw, top loading of the components of the mixture and in which the load along the axis of the screw.

5. The method according to claim 1, characterized in that the rubber crumb produced from waste tyre and rubber industry or of synthetic rubber.

6. The method according to claim 5, characterized in that as a waste tire industry use unused tires.

7. The method according to claim 1, wherein before placing the mix on prepared surface by placing a mesh material.

8. The method according to claim 1, characterized in that when laying the received weight to your desktop the latest cover with a film of a material excluding the adherence of the mass to the table.



 

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