Precise control technology for rubber plastic thermal insulation material

Abstract

The invention discloses a precise control technology for a rubber plastic thermal insulation material. The material is prepared from, by weight, 75-95 parts of nitrile rubber, 20-32 parts of chlorinated polyethylene, 80-100 parts of polyvinyl chloride, 1-2 parts of stearic acid, 80-150 parts of a foaming agent, 6-20 parts of fast extruding furnace carbon black, 80-110 parts of a plasticizer, 1.2-3parts of an L-12 dispersing agent, 1-3 parts of an anti-aging agent, 3-5 parts of a vulcanizing agent, 0.2-0.5 part of a scorch retarder and 2-5 parts of other auxiliary agents. Through developing and regulating of the formula and the technology, by adding the L-12 dispersing agent, by changing a machine head material, the uniformity of a rubber compound is ensured, defects of appearance of a product and microdefects in the product are overcome, and the stress concentration points are reduced by 95% or above; the product strength and the foam hole density are greatly improved, and the fire-proof performance is significantly improved.

Description

technical field [0001] The invention relates to the technical field of rubber and plastic thermal insulation materials, in particular to a precise control process of rubber and plastic thermal insulation materials. Background technique [0002] At present, the production enterprises of flexible rubber and plastic thermal insulation materials in China are of different levels, and the product control requirements formulated by the national standard "GB / T 17794-2006 Flexible Thermal Insulation Products" are too broad, and the new industry standard has not yet been issued. The quality of thermal insulation products is different, and the products are easy to cause appearance defects during production, transportation and use. The different sizes of the cells of thermal insulation materials lead to the decline of thermal insulation performance of the product, and the aging resistance of the product is poor. As a building material, the product cannot achieve The fire protection perf...

AI Technical Summary

Problems solved by technology

[0002] At present, the production enterprises of flexible rubber and plastic thermal insulation materials in China are of different levels, and the product control requirements formulated by the national standard "GB / T 17794-2006 Flexible Thermal Insulation Products" are too broad, and the new industry standard has not yet been issued. The quality of thermal insulation products is different, and the products are easy to cause appearance defects during production, transportation and use. The different sizes of the cells of thermal insulation materials lead to the decline of thermal insulation performance of the product, and the aging resistance of the product is poor. As a building material, the product cannot achieve The fire protection performance required by the construction industry, so a precise control process of rubber and plastic insulation materials is proposed