High rush-resistant polyvinyl chloride pipe for drinking and preparation method thereof

Abstract

The invention discloses a high impact polyvinyl chloride pipe and preparing method in the tubular product technique domain, which concludes 100 parts of PVC resin, 0.4-4 parts of heat stabilizer, 1.4-3.0 parts of lube, 0-3 parts of loading agent, 5-10 parts of toughener and 0.03-0.1 part of colorant. The invention comprises the following steps: adding the PVC resin, heat stabilizer, lube, loading agent and toughener in the heat mixing machine; mixing evenlu at 115-120DEG C; forming very even mixture; cooling the mixture to 45DEG C; piling out tubular product from double screw extruder; cooling and forming the tubular product through vacuum sizing; fixing length; cutting and flaring; forming and packing for finished goods.

Description

Technical field

[0001] The invention relates to an improved method for preparing a polyvinyl chloride pipe for drinking water, and belongs to the technical field of pipes. Background technique

[0002] The urban water supply system is the most important basic project in urban construction. In the past hundred years, galvanized pipes have been used for water supply pipelines in urban buildings. With the development of science and technology and the improvement of living standards, people are increasingly concerned about the pollution caused by pipeline corrosion that often occurs in water supply systems, and replace traditional water supply pipeline materials with new water supply pipeline materials. It has become the consensus of all parties to improve the quality of water supply by using galvanized pipes. At present, the new water supply pipeline materials mainly include plastic pipes and plastic-metal composite pipes. Among them, rigid polyvinyl chloride (PVC-U) plastic pipes a...

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