Novel high-strength HDPE (high-density polyethylene) corrugated pipe and production method thereof

A high-strength, corrugated pipe technology, applied in the direction of hoses, pipes, rigid pipes, etc., can solve the problems of complex pipeline production process, easy to be affected by weather, low compressive strength, etc. The effect of surface activity and low production cost

Inactive Publication Date: 2014-05-21
郭翠芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of high-strength HDPE corrugated pipe and its production method to solve the problems of complex production process, poor impact resistance, low compressive strength, high production cost, poor heat preservation and easy to be affected by the weather of existing pipelines. and other technical issues

Method used

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  • Novel high-strength HDPE (high-density polyethylene) corrugated pipe and production method thereof
  • Novel high-strength HDPE (high-density polyethylene) corrugated pipe and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Example 1: Put 50 parts of HDPE resin (high-density polyethylene) into the hopper of the first extruder by weight ratio; put 50 parts of PE resin, 2 parts of mica powder, SBS styrene thermoplastic elastomer (TPU) Put 8 parts into the hopper of the second extruder after mixing; 80 parts of HDPE resin, 2 parts of calcium sulfate whiskers, 1 part of nano-titanium dioxide, 1 part of aluminum borate whiskers, four [β-(3,5- 0.3 part of di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 0.3 part of phenyl o-hydroxybenzoate, and 0.2 part of polyethylene wax are mixed and put into the hopper of the shell layer extruder. During production, the first extruder extrudes the HDPE core tube 5, and after the extruded HDPE core tube 5 is water-cooled and sized, the stainless steel wire is wound on the HDPE core tube 5 in a left-handed and right-handed manner from the left and right sides respectively. , the winding angle is 50 degrees, so that the pipe is evenly stressed ...

Embodiment 2

[0018] Example 2: Put 50 parts of HDPE resin (high-density polyethylene) into the hopper of the first extruder by weight ratio; put 50 parts of PE resin, 3 parts of mica powder, SBS styrene thermoplastic elastomer (TPU) Put 3 parts into the hopper of the second extruder after mixing; 82 parts of HDPE resin, 3 parts of calcium sulfate whiskers, 2 parts of nano-titanium dioxide, 1 part of aluminum borate whiskers, four [β-(3,5- 0.5 part of di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 0.4 part of phenyl o-hydroxybenzoate, and 0.3 part of polyethylene wax are mixed and put into the hopper of the shell layer extruder. The production method is the same as above.

Embodiment 3

[0019] Example 3: Put 50 parts of HDPE resin (high-density polyethylene) into the hopper of the first extruder by weight ratio; put 50 parts of PE resin, 2.5 parts of mica powder, SBS styrene thermoplastic elastomer (TPU) 3 to 8 parts are mixed and put into the hopper of the second extruder; 80 parts of HDPE resin, 2.5 parts of calcium sulfate whiskers, 1 part of nano-titanium dioxide, 2 parts of aluminum borate whiskers, four [β-(3, 0.3 part of 5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 0.5 part of phenyl o-hydroxybenzoate, and 0.2 part of polyethylene wax are mixed and put into the hopper of the shell layer extruder. The production method is the same as above.

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Abstract

The invention discloses a novel high-strength HDPE (high-density polyethylene) corrugated pipe. The innermost layer of a water pipe is an HDPE core pipe; a stainless steel net layer wraps outside the HDPE core pipe and is wrapped by a PE (polyethylene) outer layer; an arc corrugated shell layer wraps the PE outer layer. The novel high-strength HDPE corrugated pipe has the characteristics such as good impact resistance, high compression strength, low production cost, good heat preservation and difficult influence by climate. The compression strength of the corrugated pipe is increased by the stainless steel net layer, and cracking phenomenon of the corrugated pipe difficultly occurs; the corrugated pipe has well impact resistance and can meet the demands with thin pipe wall during applying. A polyurethane foam plastic is filled between the PE outer layer and a corrugated weather proof layer, so the temperature of a pipeline is not easily influenced by environment; the weather fastness of the corrugated pipe is superior to those of common plastic pipelines, and the corrugated pipe has an optimistic application prospect and belongs to an upgrading product of the traditional PE corrugated pipe.

Description

technical field [0001] The invention relates to a HDPE corrugated pipe, in particular to a novel high-strength HDPE corrugated pipe and a production method thereof. Background technique [0002] Now HDPE corrugated pipes are mainly made of polyethylene pipes, which have the characteristics of light weight, high pressure resistance, good toughness, fast construction and long life. In addition to the good corrosion resistance and high insulation of ordinary plastic pipes, the inner wall is smooth and flowing. In addition to the characteristics of small resistance, due to the use of a special hollow ring structure, it has excellent ring stiffness, good strength and toughness, light weight, strong impact resistance, and is not easy to break. At present, it has been widely used in many fields in developed countries, especially in the United States, Canada, Japan and many European countries. Double-wall corrugated pipes are widely used in municipal drainage and sewage, agricultura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/12F16L11/112B29C47/06C08L23/06C08L53/02C08K3/34C08K13/04C08K7/08C08K3/22C08K5/134C08K5/101
CPCC08K2201/011C08K2201/014C08L23/06C08L2203/18C08L2205/025C08L2207/04C08L2207/062F16L9/147C08L53/02C08K3/34C08K13/04C08K7/08C08K2003/2241C08K5/1345C08K5/101Y02A20/20
Inventor 郭翠芳林枫
Owner 郭翠芳
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