Low temperature resistant PVC water supply pipe used in severe cold region and preparation method thereof

Abstract

The invention discloses a low temperature resistant PVC (polyvinyl chloride) water supply pipe used in severe cold region and a preparation method thereof. The low temperature resistant PVC water supply pipe used in the severe cold region is prepared from the following raw materials in parts by weight: 42-56 parts of PVC resin SG-7, 34-48 parts of polyethylene terephthalate, 10-15 parts of tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, 11-19 parts of triethylene glycol di-2-ethylhexoate(triglycol dioctate), 10-15 epoxidation acetyl ricinolic acid methyl ester, 9-18 parts of oil shale ash, 14-22 parts of white mud, 10-15 parts of lithium soap powder, 4-7 parts of low molecular weight polypropylene, 3-6 parts of erucicamide, 1-2 parts of calcium stearate, 1-2 parts of zinc stearate, 2-4 parts of pentaerythritol adipate ester, 1.5-2.5 parts of uracil, 2-3 parts of aniline methyltriethoxysilane, 22-26 parts of filled masterbatch, 1-2 parts of salicylic acid-tert-butyl-phenyl ester and 0.5-1.5 parts of 3-(3,5-di-tert-butyl-4-hydroxyl phenyl) methyl propionate. The PVC pipe provided by the invention is good in the comprehensive performance and simultaneously has the characteristics of low temperature resistance, high strength, high impact resistance and high toughness; the PVC pipe can meet requirements for utilization in the severe cold region at temperature below minus 40 DEG C and is not prone to crack; the service life is long; the market competiveness is high.

Description

technical field [0001] The invention relates to a PVC pipe material and a preparation method thereof, in particular to a low-temperature-resistant PVC water supply pipe material used in severe cold regions 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, the PVC water supply pipes on the market have poor low temperature resistance, and are prone to failure in severe cold areas. Embrittlement and cracking greatly reduce the service life of PVC pipes and limit its application range. Therefore, there is an ur...

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, the PVC water supply pipes on the market have poor low temperature resistance, and are prone to failure in severe cold areas. Embrittlement and cracking greatly reduce the service life of PVC pipes and limit its application range