Nano ceramic super high molecular weight polyethylene modified material pipe and preparation method thereof

Abstract

The invention provides a modifying material pipe of nano porcelain super-high molecular weight polyethylene and a preparation process thereof. The modifying material pipe is formed by the following components with parts by weight: 75-125 parts of polyethylene with super-high molecular weight, 1-6 parts of polyethylene wax, 0.5-3 parts of graphite, 1-8 parts of nano porcelain powder, 0.5-3.5 parts of antistatic agent and 1-4 parts of fire retarding agent. The process comprises the following steps of conducting proportioning, mixing, heating, extruding, shaping pipe parison, stretching pipe parison in two ways, cooling, shaping and cutting, then shaping, and then cutting, thereby obtaining the modifying material pipe of nano porcelain super-high molecular weight polyethylene. The modifying material pipe has the advantages of small raw material consumption, low cost, extremely high abrasion resistance, excellent self-lubricating property, super strong impact strength, wonderful fire-retardant and extremely strong free viscosity, and can prevent static and resist aging and corrosion.

Description

technical field [0001] The invention relates to a nano porcelain powder 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 i...

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 after another, although ultra-high molecular weight polyethylene materials have ideal material comprehensive properties. , wear resistance, low temperature resistance, corrosion resistance, self-lubrication, and impact resistance have relatively high values ​​in plastic materials. However, due to the low surface hardness of ultra-high molecular weight polyethylene, the mechanical strength is not high, and the heat distortion temperature is relatively high. Low, poor high temperature resistance, high viscosity, poor fluidity, so it is difficult to process, and compared with PE100, the comprehensive performance of ultra-high molecular weight polyethylene pipes is slightly higher than that of PE100, which is not very Obvious performance improvement. In order to make up for these shortcomings, it is urgent to modify the materials used in the pipes to adapt to the changing market demand.