Double-wall corrugated pipe polyethylene pipe material

Abstract

The invention discloses a double-wall corrugated pipe polyethylene pipe material, which is characterized by being prepared from an ingredient A, an ingredient B and an auxiliary agent ingredient C, wherein the ingredient A is prepared from high-density polyethylene, polyvinyl butyral, vinyl-vinyl acetate copolymers, silane, chloroprene rubber and dicumyl peroxide. PE100 grade high-density polyethylene, polyvinyl butyral and vinyl-vinyl acetate copolymers are selected; the properties such as the mechanical property, the heat resistant property and the environmental stress cracking resistant property in the whole material formula are improved; the grafting effect is good; the influence of the content of initiating agents on the material is great; if the influence is too low, an initiating effect cannot be caused; if the influence is too high, the crosslinking in the great degree can be generated in the extruding process; the material flowability reduction is caused; the appearance is coarse; the content of the initiating agent is proper; the appearance of the extruded material is smooth.

Description

technical field [0001] The invention relates to the technical field of pipes, in particular to a double-wall corrugated polyethylene pipe. Background technique [0002] High-density polyethylene double-wall corrugated pipe is a new type of pipe with a ring-shaped outer wall and a smooth inner wall. It was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has developed from a single variety to a complete one. At present, the production process and application technology are very mature. Due to its excellent performance and relatively economical cost, it has been greatly promoted and applied in developed countries such as Europe and the United States. In my country, HDPE double-wall corrugated pipe The promotion and application of double-wall corrugated pipes are on the rise, and all technical indicators have reached the use standards. The inner wall of the double-wall corrugated pipe is usually blue and blac...

AI Technical Summary

Problems solved by technology

[0003] However, the commonly used pipes have some defects: relatively low strength, easy to be damaged during laying or use, and poor weather resistance to the environment. In cold regions, the temperature below zero is not suitable for laying construction. At this time The polyethylene pipe is easy to be brittle; in addition, the pipe is easy to age and has a low service life

However, there are relatively few high-density polyethylene pipes in my country, and now we hope to improve the strength of polyethylene pipes, improve their environmental resistance, and broaden the temperature range of their use environment by doing some modification research on polyethylene