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Rotationally Molded PE And Composite Knowledge
Ningbo Wanma Plastics Co.,Ltd | Updated: Mar 14, 2016

The addition polymer of polyethylene by ethylene polymers. According to the polymerization conditions ranging from thousands to millions of different molecular weights from l. Obtained in the first invention is the use of high pressure polyethylene of low density polyethylene, its specific gravity is 0.9l0-0.925g/cm3. Then polyethylene obtained by the method of low-voltage and medium-voltage of the 0.94l-0.965g/cm3, known as high density polyethylene. White waxy polyethylene translucent material, soft and tough, slightly stretchy, non poisonous, flammable, burning dripping melting, of issuance Zhejiang rotational molding wax burning smell. Properties related to its molecular weight of polyethylene, also related to their crystallinity.

Changxing, many mechanical properties are determined by the roll of polyethylene plastic material density and melt index. From low density to high density polyethylene, its density is in the 0.90-0.96g/cm3 range. Polyethylene MFR (melt flow index) varies, from 0.3 to 25.0 per cent. Many important properties of polyethylene tends to change with density and melt index.


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