What Is PE Material?
Release time：2023-08-23
Polyethylene (PE) is a thermoplastic resin obtained by polymerizing ethylene. In industry, copolymers of ethylene with small amounts of alpha-olefins are also included. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (minimum operating temperature can reach -100~-70°C), good chemical stability, and can resist most acid and alkali erosion (not resistant to oxidation nature acid). It is insoluble in common solvents at room temperature, with low water absorption and excellent electrical insulation.
Polyethylene resin is a non-toxic, odorless white powder or granule, milky white in appearance, with a wax-like feel, and low water absorption, less than 0.01%. The polyethylene film is transparent and decreases with increasing crystallinity. The polyethylene film has low water permeability but high air permeability, which is not suitable for fresh-keeping packaging but suitable for moisture-proof packaging. Flammable, with an oxygen index of 17.4, low smoke when burning, with a small amount of molten droplets, the flame is yellow on the top and blue on the bottom, and has a paraffin odor. Polyethylene has better water resistance. The surface of the product is non-polar, difficult to bond and print, and has been improved by surface treatment. More branched chains have poor resistance to photodegradation and oxidation.
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