Impact resistance of ultra high molecular weight polyethylene sheets
Impact resistance – impact strength up to 150kj / m2, no cracking. Excellent environmental stress cracking performance, 200 times that of ordinary polyethylene. Excellent low temperature resistance, no cracking even at 176 °C. High-molecular-weight polyethylene sheets have very high wear resistance, so high-molecular coal bunker liners are no exception. Its molecular weight is more than 6 million and its wear index is small, which makes it extremely resistant to sliding friction. The wear resistance is 6.6 times higher than that of ordinary alloy steel and 27.3 times that of stainless steel. It is 17.9 times of phenolic resin, 6 times of nylon 6 and 4 times of polyethylene, which greatly improves the service life of pipes. A groove or ridge made of metal or other material that can bear, stabilize, guide the installation or equipment and reduce its friction. Longitudinal grooves or ridges on the surface of the rail for guiding, stabilizing machine components, special equipment, instruments, etc. The polyethylene sheet has a melting point of about one hundred and thirty degrees and a relative density of less than one. Polyethylene sheet has its own unique heat resistance and cold resistance, and also has a stable chemical invariant function. In addition to these polyethylene sheets, they also have the advantages of high rigidity and toughness, and the mechanical strength is particularly good. The ultra-high molecular polyethylene sheet also possesses a dielectric nature, and the ring-resistant stress cracking is particularly good.
The ultra-high molecular weight polyethylene liner has high impact strength, low friction coefficient and excellent self-lubricating properties, which can meet the different needs of customers. The high-molecular polyethylene sheet that has been tempered by its nature is difficult to ignite, and can be automatically extinguished within 3-10 seconds after being separated from the fire source. It does not drip, the amount of smoke is small, and it will swell during the dissolution process. The size of the solute macromolecule and the solvent small molecule are very different, and the solvent molecules can be easily diffused into the interior of the polyethylene plate to increase the distance between the molecular chains. Molecular polyethylene sheet materials have a wide range of brands and different natures. In addition to one or several high polymers, in order to achieve a superior nature, materials are often involved in various organic increasing agents. Processing aids, colorants and fillers. If the plastic contains plasticizer, oxygen generator, invariant, UV absorber and reinforcing agent, the rubber contains vulcanizing agent, development agent, reinforcing agent, oxygen generator and UV absorber. The adhesive contains a solvent, a thickener, a plasticizer, etc., and the fiber has an ultraviolet absorber and an electrostatic agent. After the volatile gas is harmless and tested by the National Flame Retardant Materials Laboratory, the product is considered to be a green material. Ultra-high molecular weight polyethylene flame-retardant wear-resistant linings mainly have the following categories: flame-retardant panels are weather-resistant, boiling-water-resistant flame-retardant plywood, which has the advantages of durability, high temperature resistance and steam solution.