Tube material for stress-resistant gas pipelines

A gas pipeline and stress-resistant technology, applied in the field of pipes, can solve the problems of expensive materials, fast aging, and high production cost of PVC hoses, and achieve the effects of low ratio, anti-aging strength and impact resistance, and low price.

Inactive Publication Date: 2016-09-07
CHUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PVC pipe hoses are high in quality and cheap, and are currently recognized as the most widely used outdoor water pipes. However, hoses made of existing gas pipes have some defects. At present, the way to overcome this defect is to add antioxidants and ultraviolet absorbers, but the added substances are relatively expensive, resulting in higher production costs for PVC hoses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] A pipe material for stress-resistant gas pipelines, which is composed of the following raw materials in parts by weight: 65 parts of polypropylene, 14.5 parts of di-n-octyltinthioglycol octyl ester, 0.65 parts of polyethylene wax, 0.55 parts of calcium rosinate, 0.35 parts of PbSt, and pigments 2.5 parts, 6 parts of glass fiber, 6 parts of ethylene propylene rubber, 3 parts of liquid Ba-Zn composite stabilizer; the specific preparation process of the pipe is: first put the raw materials of the above weight parts into the mixer and stir, and then heat to 90 °C Stir for 45 minutes, then heat to 135°C and stir for 32 minutes, stir evenly and then cool to 65°C to discharge. After injection molding, the molding pressure is 2.2MPa, the curing humidity is kept at 85%, and the curing temperature is 32°C. The molded product is completed by rapid cross-linking reaction in boiling water.

[0009] The tensile strength and notch strength of the pipes for stress gas pipelines of the ...

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PUM

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Abstract

The invention discloses a tube material for stress-resistant gas pipelines. The tube material comprises, by weight, 60-70 parts of polypropylene, 13-16 parts of di-n-octyl tin octyl thioglycolate, 0.5-0.8 parts of polyethylene wax, 0.4-0.7 parts of calcium rosinate, 0.2-0.5 parts of PbSt, 2-3 parts of a pigment, 4-8 parts of glass fibers, 5-7 parts of ethylene propylene rubber, and 2-4 parts of a liquid Ba-Zn composite stabilizer. The tube material has the advantages of low cost, improved ageing resistance, improved strength, improved impact resistance, and stress resistance.

Description

technical field [0001] The invention relates to the field of pipe materials, in particular to pipe materials for stress-resistant gas pipelines. Background technique [0002] PVC pipe hoses are high in quality and cheap, and are currently recognized as the most widely used outdoor water pipes. However, hoses made of existing gas pipes have some defects. At present, the way to overcome this defect is to add antioxidants and ultraviolet absorbers, but the added substances are relatively expensive, resulting in higher production costs for PVC hoses. Contents of the invention [0003] The object of the present invention is to provide a pipe material for stress-resistant gas pipelines, which has low cost, anti-aging, improved strength and impact resistance, and has stress-resistant characteristics. [0004] Technical scheme of the present invention is as follows: [0005] A pipe material for stress-resistant gas pipelines, which consists of the following raw materials in part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/16C08K13/04C08K7/14C08K5/098
CPCC08K2201/014C08L23/12C08L2203/18C08L2205/03C08L2205/06C08L23/06C08L23/16C08K13/04C08K7/14C08K5/098
Inventor 王波支新涛李增松王伟潘广香
Owner CHUZHOU UNIV
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