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High-modulus polypropylene PP-HM double-wall corrugated pipe

A PP-HM, double-wall corrugated pipe technology, applied in the field of polyolefin pipes, can solve the problems of poor fluidity and thermal stability of PVC resin, difficulty in large-diameter double-wall corrugated pipes, etc., and achieve low cost, high ring stiffness and low temperature. Impact strength, the effect of expanding the application range

Active Publication Date: 2016-10-12
SHANGHAI ZHONGSU PIPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fluidity and thermal stability of PVC resin are relatively poor, and it is difficult to produce large-diameter double-wall corrugated pipes (diameter above 400mm), so a pipe with higher ring stiffness that can replace PVC resin is needed

Method used

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  • High-modulus polypropylene PP-HM double-wall corrugated pipe
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  • High-modulus polypropylene PP-HM double-wall corrugated pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0122] A propylene-based polymer

[0123] A1 Borealis BorECO BA212E, 0.3g / 10min (230℃ / 2.16kg) 900kg / m 3

[0124] A2 Korea Hyosung PP-B240P, 0.4g / 10min (230℃ / 2.16kg) 910kg / m 3

[0125] A3 Li Changrong Chemical PP8002, 0.8g / 10min (230℃ / 2.16kg) 896kg / m 3

[0126] B vinyl glycidyl ether

[0127] B1 p-vinylbenzyl glycidyl ether, Changzhou Wujin Linchuan Chemical Co., Ltd.

[0128] B2 Allyl Glycidyl Ether, Anhui Hengyuan Chemical Co., Ltd.

[0129] C Organosilane

[0130] C1 bis(trimethylsilylmethyl) sulfide, Sigma-Aldrich (Shanghai) Trading Co., Ltd.

[0131] C2 3-Glycidoxypropyltrimethoxysilane, GE A-187

[0132] C3 Vinyltrimethoxysilane, U.S. Bicarbon A-171

[0133] D antioxidant

[0134] D1 2-mercaptobenzimidazole, Ouchi emerging NocracMB

[0135] D2 2,6-Di-tert-butyl-4-ethylphenol, Ouchi Xinxing 234

[0136] D3 A mixture of 2-mercaptobenzimidazole and 2,6-di-tert-butyl-4-ethylphenol in a weight ratio of 6:4

[0137] E antistatic agent

[0138] N,N-bis(2-hydroxyet...

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PUM

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Abstract

The invention relates to a high-modulus polypropylene PP-HM double-wall corrugated pipe. The high-modulus polypropylene PP-HM double-wall corrugated pipe at least comprises the following components in parts by weight: 100 parts of allyl polymer, 4 to 6 parts of vinyl glycidyl ether, 0.1 to 0.3 part of organic silane, 0.05 to 0.15 part of antioxidant, 0.5 to 2 parts of antistatic agent, and 1 to 5 parts of impact modifier, wherein the melt flow rate of allyl polymer is 0.25-0.4g / 10min at the temperature of 230 DEG C and load of 2.16kg; the density of allyl polymer is 895-910kg / m<3>.

Description

technical field [0001] The invention relates to the field of polyolefin pipes, in particular to a high-modulus polypropylene PP-HM double-wall corrugated pipe. Background technique [0002] my country's existing flood control and drainage systems mainly use cement pipes and clay pipes as sewage pipes, but their quality is large and easy to crack, which is not suitable for the needs of rapid modernization. Chinese patent CN102719011B discloses a polypropylene double-wall corrugated pipe. When a plastic pipe is used as a buried pipe, it is not only subjected to the pressure generated by the weight of the soil and the ground, but also by the dynamic pressure generated by the passing of vehicles. Ring stiffness is an important indicator of the performance of plastic pipes to withstand external pressure loads. Plastic pipes can be greatly deformed without damage under the action of external pressure loads. Therefore, crack loads or damage loads cannot be used to determine their ...

Claims

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Application Information

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IPC IPC(8): C08L23/10C08L23/06C08K5/00C08K5/20C08K5/41C08K5/13C08K5/37
CPCC08K2201/014C08K2201/017C08L23/10C08L2203/18C08L2207/068C08L23/06C08K5/00C08K5/37C08K5/41C08K5/13C08K5/548C08K5/5435
Inventor 刘志光郑祥义
Owner SHANGHAI ZHONGSU PIPE