Heatproof polystyrene plastic

Abstract

The invention relates to a heatproof polystyrene plastic, comprising the following components: 40-55 parts of high-density polyethylene resin, 5-8 parts of silane cross-linking agent, 0.2-0.5 parts of tartaric acid, 0.2-0.7 parts of calcium stearate, 0.1-0.15 parts of polypropylene cellulose and 2-5 parts of vinyl acetate, wherein the silane cross-linking agent is one or more of vinyl trimethoxy silane and vinyltriethoxysilane. The polystyrene polymer provided by the invention is characterized by high average use temperature, mature production extrusion process and extra-high stress cracking resistance; and the pipe prepared from the heatproof polystyrene plastic is safer to use, and has thinner wall due to higher minimum required strength; therefore, the cost is obviously reduced.

Description

technical field [0001] The invention relates to a chemical material, more specifically to a heat-resistant polystyrene plastic. Background technique [0002] At present, due to the excellent crack resistance, low temperature resistance, hygienic and non-toxic, and chemical medium corrosion resistance of high-density polyethylene pipes [0003] As well as the advantages of easy installation, non-excavation technology and long service life, it is widely used in building water supply, drainage, building heating, urban water supply and drainage, city gas, coal mine underground transmission, electric power, telecommunications protection, industry, agriculture and other fields. However, because the material itself does not have heat resistance, when transporting medium with high temperature, it will cause pressure reduction and the pressure bearing capacity will be significantly reduced, which limits the application of its pipe in the field of medium and high temperature mediu...

AI Technical Summary

Problems solved by technology

However, because its own material does not have heat resistance, when transporting medium with high temperature, it will cause pressure reduction, and the pressure bearing capacity will be significantly reduced, which limits the application of its pipes in the field of medium and high temperature medium transportation.

At present, the known patented technology and practical technology only partially solve the problem of heat resistance, and none of them can solve the problem of heat resistance and pressure resistance. The traditional solution is only to increase the wall thickness of the pipe. Its low pressure bearing capacity and other problems, but the cost of pipes is very high, the waste of resources is serious, and the use and promotion are of little significance