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Polyethylene pre toughness, dielectric properties and excellent resistance to chemical corrosion, molding process is good, but poor rigidity, less smoke when burning, low-pressure polyethylene temperature up to 100 ℃.
As a white waxy translucent polyethylene material, soft and tough, is lighter than water, non-toxic, it has excellent dielectric properties. Flammable and away from the fire continues to burn. Polyethylene low permeability, organic vapor transmission rate is larger. The transparency of the polyethylene increases with the degree of crystallinity decreased in a certain degree of crystallinity, transparency and increase with increasing molecular weight. High density polyethylene melting point in the range of 132-135 ℃, low density polyethylene low melting point (112 ℃) and wide range.
At room temperature, not soluble in any known solvent, a small amount of more than 70 ℃ dissolved in toluene, amyl acetate, trichlorethylene and other solvents.

Polyethylene has excellent chemical stability, resistance to room temperature, hydrochloric acid, hydrofluoric acid, phosphoric acid, formic acid, amines, sodium hydroxide, potassium hydroxide and other chemicals, sulfuric acid and nitric acid has a strong role in the destruction of polyethylene . Polyethylene easy photo-oxidation, thermal oxidation, ozone decomposition, prone to degradation under the action of ultraviolet light, carbon black polyethylene has excellent light shielding effect. That can occur after radiation crosslinking, chain scission, form an unsaturated group and so reflect. Polyethylene Classification and Application.