1, polyethylene: commonly used polyethylene can be divided into low pressure polyethylene (HDPE), high pressure polyethylene (LDPE) and linear polyethylene (LLDPE). Among the three, HDPE has better thermal properties, electrical properties and mechanical properties, while LDPE and LLDPE have better flexibility, impact properties, film forming, etc.. LDPE and LLDPE are mainly used for packaging film, agricultural film, plastic modification, etc., and the use of HDPE is more extensive, film, pipe, injection and other fields of daily necessities.
2, polypropylene PP: relatively speaking, more varieties, use is also more complex, many areas, there are varieties of polypropylene homopolymer (homopp), polypropylene block copolymer (copp) and polypropylene (Rapp), according to different purposes, were mainly used in wire drawing, fiber, injection, BOPP film and other fields, polypropylene is mainly used in household appliances of injection parts, modified materials, daily injection products, pipes, atactic polypropylene is mainly used for transparent products, high performance and high performance products, pipe etc..
3, PVC: because of its low cost, the product has the characteristics of self ignition, it is widely used in the field of construction, especially sewer pipes, plastic steel doors and windows, plates, artificial leather, etc. the most widely used.
4, polystyrene: as a transparent raw materials, in the case of transparent demand, the use of a wide range of applications, such as car shade, daily transparent parts, transparent cups, cans, etc..
5, ABS is a widely used engineering plastics, with outstanding mechanical and thermal properties, are widely used in household appliances, panel, mask, assembly, and other accessories, especially household appliances, such as washing machine, air conditioner, refrigerator, electric fan, the amount is very large, in the plastic modification the use of a very wide.
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