High-temperature-resistant PVC pipe for water supply engineering and preparation method for high-temperature-resistant PVC pipe

Abstract

The invention discloses a high-temperature-resistant PVC pipe for water supply engineering, which is prepared from the following raw materials in parts by weight: 56-78 parts of SG-2 type PVC resin, 22-34 parts of poly(ether-ketone-ketone), 16-28 parts of polyparahydroxybenzoic acid, 15-20 parts of fumed silica, 12-18 parts of cubic boron nitride micro powder, 3-5 parts of hexadecyl palmitate, 2-4 parts of pentaerythritol stearate, 1.5-2.5 parts of dimethyltin bis(isooctylmercaptoacetate), 1-2 parts of barium laurate, 0.5-1.5 parts of zinc naphthenate, 1-2 parts of 5,2-phenylindole, 4-8 parts of epoxy linseed oil, 10-15 parts of bisphenol-A bis(diphenyl phosphate), 5-10 parts of antimonous oxide, 4-8 parts of hydrated alumina, 4-6 parts of microcrystalline wax, 2.5-4.5 parts of molykote lubricating grease, 15-20 parts of filling master batch, 1-2 parts of 2,4-bis(n-octylthiomethyl)-6-methylphenol and 2-3 parts of diisooctyl phenyl phosphate. The PVC pipe disclosed by the invention is excellent in high temperature resistance, can normally wok at the high temperature of 105-125 DEG C, meanwhile, is good in flame retardance, mechanical property, ageing resistance and corrosion resistance, the processing method of the pipe is simple and easy to operate, the cost is low, and the method is suitable for popularization and application.

Description

technical field [0001] The invention relates to a PVC pipe material and a preparation method thereof, in particular to a high-temperature-resistant PVC pipe material for water supply engineering and a preparation method thereof. Background technique [0002] PVC pipes are widely used in various water supply projects because of their good mechanical properties, good insulation properties, strong corrosion resistance, long service life, light weight, easy transportation, and installation. In recent years, with the rapid development of science and technology and the continuous improvement of people's living standards, the performance requirements of PVC water supply pipes are getting higher and higher. At present, PVC water supply pipes on the market have poor high temperature resistance and are easy to soften under high temperature conditions. , unable to work for a long time, which greatly reduces the service life of PVC pipes and limits its application range. Therefore, be ...

AI Technical Summary

Problems solved by technology

In recent years, with the rapid development of science and technology and the continuous improvement of people's living standards, the performance requirements of PVC water supply pipes are getting higher and higher. At present, PVC water supply pipes on the market have poor high temperature resistance and are easy to soften under high temperature conditions. , unable to work for a long time, greatly reducing the service life of PVC pipes and limiting its application range