METHOD OF FORMING COMPOSITE COATING FROM SILICATE POLYMER MATERIAL Russian patent published in 2008 - IPC C23C24/04 C09D5/08 C09D5/03 C08K3/34 C09D177/00 C09D123/06 C09D167/02 

FIELD: technological processes.

SUBSTANCE: invention pertains to the technology of polymer functional materials and can be used in machine building when forming coatings for component part of machines, mechanisms and transport systems, and mainly pipes for pumping petroleum products. The method of forming composition coating from silicate polymer material involves mixing powder polymer particles and silicate particles. The mixture is then deposited on the surface of the object and heated. Polymer particles are flushed off and monocrystallisation of the coating is carried out. The powder polymer particles are chosen from a group containing polyamide, polyethyleneterphtalate, high pressure polyethylene. Silicate particles are chosen from a group containing montmorillonite, kaolin, tripolite. Heating and flushing off are done in a gas stream with density of 3·10⁶-9·10⁶ W/m² for a period of 10^-4-10^-3 s. Depositing and monocrystallisation are done on an object, heated to temperature T=T_m+5÷40°C, where T_m is the melting temperature of the polymer, with pressure of the gas stream of 3-5 atmospheres. The coating is formed by depositing it on one or more ducts of the used device for depositing it, or is deposited by successive passage of the device with the polymer component, and then a device with the silicate component.

EFFECT: increased adhesive strength, hardness and ultimate stress limit, and design of a method which provides for high production effectiveness of the process and lower cost of the coating.

3 cl, 2 tbl