Pipe material modified with ultrahigh molecular weight polyethylene and its prepn

An ultra-high molecular weight polyethylene modification technology, which is applied in the field of ultra-high molecular weight polyethylene modified material pipes and its preparation, can solve problems such as poor high temperature resistance, insufficient safety and reliability, and failure to achieve high-quality projects. , to achieve the effects of strong impact resistance and impact absorption, highlighting substantive features, and improving wear-resisting life

Inactive Publication Date: 2007-08-22
王好占
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pipes are required to be used in many engineering fields. For the purpose of reducing costs and facilitating installation and application, a large number of pipes made of engineering plastics have appeared on the market. Among them, PE100 is the most comprehensive performance, and its tensile strength is about It is 25Mpa, and the impact strength is 20KJ/M 2 , the ability to resist environmental stress cracking is about 2000 hours. Because of its outstanding advantages and excellent comprehensive performance, it is widely used in various projects. However, its manufacturing cost is relatively high, and many major engineering technical indicators are still It cannot meet the needs of some high-quality projects, that is, there are still insufficient safety and reliability; for this reason, some ultra-high molecular weight polyethylene pipes have appeared on the market one af

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An ultra-high molecular weight polyethylene modified material pipe, which is composed of the following components in parts by weight: 105 parts of ultra-high molecular weight polyethylene, 3 parts of polyethylene wax, 1.2 parts of graphite, and glass hollow microspheres 3 parts, 1.2 parts of antistatic agent, 1.8 parts of flame retardant; the tensile strength of the modified material pipe is not less than 46Mpa, and the wall thickness of the pipe is 56% of that of the PE100 pipe under the same pipe diameter and the same working pressure. -60%, which is 68-70% of the wall thickness of ultra-high molecular weight polyethylene pipes; the flame retardant is at least one of antimony trioxide, phosphoric acid ester, stannate and / or decabromodiphenyl ether ;

[0036] Based on the above-mentioned UHMWPE modified material pipe, the modified material pipe also includes the following components by weight: 1.2 parts of coupling agent, 0.4 part of nucleating agent, 1.2 parts of anti...

Embodiment 2

[0047] The difference between this embodiment and embodiment 1 mainly lies in:

[0048] An ultra-high molecular weight polyethylene modified material pipe, which is composed of the following components in parts by weight: 165 parts of ultra-high molecular weight polyethylene, 7 parts of polyethylene wax, 4 parts of graphite, and glass hollow microspheres 10 parts, 4.5 parts of antistatic agent, 5.6 parts of flame retardant; the tensile strength of the modified material pipe is not less than 52Mpa, and the wall thickness of the pipe is 62% of that of the PE100 pipe under the same pipe diameter and the same working pressure. -68%, which is 72-78% of the wall thickness of ultra-high molecular weight polyethylene pipes; the flame retardant is at least one of antimony trioxide, phosphoric acid ester, stannate and / or decabromodiphenyl ether ;

[0049] Based on the above-mentioned UHMWPE modified material pipe, the modified material pipe also includes the following components by wei...

Embodiment 3

[0052] The difference between this embodiment and embodiment 1 mainly lies in:

[0053] An ultra-high molecular weight polyethylene modified material pipe, which is composed of the following components in parts by weight: 135 parts of ultra-high molecular weight polyethylene, 5 parts of polyethylene wax, 2.8 parts of graphite, glass hollow microspheres 7 parts, 3.6 parts of antistatic agent, 4.2 parts of flame retardant; the tensile strength of the modified material pipe is not less than 54.2Mpa, and the wall thickness of the pipe is less than that of the PE100 pipe under the same pipe diameter and the same working pressure. 65-68%, which is 75-79% of the wall thickness of ultra-high molecular weight polyethylene pipes; the flame retardant is at least one of antimony trioxane, phosphoric acid ester, stannate and / or decabromodiphenyl ether kind;

[0054] Based on the aforementioned UHMWPE modified material pipe, the modified material pipe also includes the following components...

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Abstract

The present invention is modified ultrahigh molecular weight polyethylene pipe material and its preparation process. The modified ultrahigh molecular weight polyethylene pipe material consists of ultrahigh molecular weight polyethylene 105-165 weight portions, polyethylene wax 3-7 weight portions, graphite 1.2-4 weight portions, hollow glass bead 3-10 weight portions, antistatic agent 1.2-4.5 weight portions and flame retardant 1.8-5.6 weight portions. It has tensile strength higher than 46 MPa. Its preparation process includes the steps of compounding material, mixing, heating, extruding, forming, biaxial tension, cooling to settle and cutting. The modified ultrahigh molecular weight polyethylene pipe material has low cost, high wear resistance, excellent self-lubricating performance, high impact strength, excellent fire resistance, etc.

Description

technical field [0001] The invention relates to an ultra-high molecular weight polyethylene modified material pipe and a preparation method thereof, belonging to the field of polymer processing and application. Background technique [0002] Pipes are required to be used in many engineering fields. For the purpose of reducing costs and facilitating installation and application, a large number of pipes made of engineering plastics have appeared on the market. Among them, PE100 is the most comprehensive performance, and its tensile strength is about It is 25Mpa, and the impact strength is 20KJ / M 2 , the ability to resist environmental stress cracking is about 2000 hours. Because of its outstanding advantages and excellent comprehensive performance, it is widely used in various projects. However, its manufacturing cost is relatively high, and many major engineering technical indicators are still It cannot meet the needs of some high-quality projects, that is, there are still in...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K7/28B29C55/26C08K3/04C08K5/521C08K3/24C08K5/54
Inventor 王好占
Owner 王好占
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