What is the Difference Between UHMWPE Pipe and Ordinary Polyethylene Pipe?

UHMWPE Pipe is an unbranched linear polyethylene with a molecular weight of more than 1.5 million. Ultra-high molecular weight polyethylene pipe is a kind of polyethylene pipe, why is it called ultra-high molecular weight polyethylene pipe, it has to talk about its main constituent material, ultra-high molecular weight polyethylene. As a UHMWPE Pipe Manufacturers, share with you.

HDPE Pipe

The molecular formula of ultra-high molecular weight polyethylene: — (— CH2-CH2 —) — n—, density: 0.920 ～ 0.964g / cm3. Heat distortion temperature (0.46MPa) 85 ℃, melting point 130 ～ 136 ℃. Polyethylene (PE) is a thermoplastic resin made by polymerization of ethylene. Polyethylene with a molecular weight of more than 150W is called ultra-high molecular weight polyethylene. Polyethylene is divided into ultra-high molecular weight polyethylene (UHMWPE), high-density polyethylene (HDPE), low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE) according to the polymerization method, molecular weight and chain structure. The performance of polyethylene products is different, and the main purpose of making pipes is also different. Ultra-high molecular weight polyethylene pipes have very good wear resistance, and are suitable for use in the tailings transportation field of the mining industry, dredging industry and sand pumping industry. They are pipes that transport media such as slurry particles, because ultra-high molecular weight polyethylene pipes In addition to wearing resistance, it is also resistant to corrosion. The coefficient of friction is small. Self-lubrication does not foul. The friction coefficient is one-sixth of the steel pipe. It is not easy to foul. Even if it is fouled, it is very easy to clean.

Ultra-high molecular weight polyethylene has a high molecular weight, and its performance will be more excellent. The material has high wear resistance, self-lubricity, relatively high strength, stable chemical properties, and strong anti-aging properties. Ultra-high molecular weight polyethylene is the main material The UHMWPE pipe also inherits the excellent performance of polymer materials. The UHMWPE pipe is light in weight and has good abrasion resistance, which solves the problem of wear caused by many mining companies during the transportation of particle mixtures.

It should be noted that the UHMWPE pipe is not resistant to dry grinding, which means that the medium passing through the pipe must have a certain water content. The water content should not be less than 70%, and the particle size should not be too large, like sand Just the same size. Furthermore, it is required that the temperature of the medium to be transported is not too high, it is normal temperature, not 80 degrees, and there is no lower limit for low temperature. The lower the temperature, the better the performance of the pipeline.

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