Two commonly used plastic varieties, properties and uses
1: commonly used polyethylene polyethylene can be divided into low
density polyethylene ( HDPE ), high density polyethylene ( LDPE )
and linear polyethylene ( LLDPE ).Water
slide Three of them, HDPE has good thermal properties,
electrical properties and mechanical properties, while LDPE and
LLDPE have good flexibility, impact resistance, water resistance.
LDPE and LLDPE are mainly used for packaging film, agricultural
film, plastic modification, while HDPE has many uses, film, pipe,
injection of daily necessities and other fields.
2 PP: relatively speaking, polypropylene breed more, use more complex also, in many fields, are the main varieties of homopolymerization polypropylene ( homopp ), polypropylene block copolymer ( copp ) and polypropylene random copolymer ( Rapp ), according to the different uses of homopolymer, mainly used in drawing, fiber, injection, BOPP film field of copolymer polypropylene,Plastic wood mainly used in household appliances injection parts, modified raw materials, daily injection products, such as pipe, atactic polypropylene is mainly used for transparent products, high performance products, high performance pipe.
PVC: 3 because of its low cost, the product has self-flame-retardant character, it is widely used in the architectural field, especially the sewer pipe, steel doors and windows, plates, artificial leather, the most extensive use.
4 ps: as a transparent material, in a transparent demand
situation, a wide range of uses, such as automobile lampshade,
daily transparent, transparent cup, pot. [4 ]
5.ABS: is a widely used engineering plastics with outstanding
physical, mechanical and thermal properties, are widely used in
household appliances,Playground
equipment panel, mask, assembly, and other accessories,
especially household appliances, such as washing machine,
refrigerator, air-conditioning, fans, amount is huge, in plastic
modification, use is very wide.
The engineering plastics
Generally refers to withstand external force, has good mechanical
properties and resistance to high and low temperature resistance,
good dimensional stability, can be used for engineering structures,
such as plastic, polyamide polysulfone. Engineering plastics
engineering plastics and can be divided into general and special
engineering plastics in two categories.
General engineering plastics including: polyamide, POM, polycarbonate, modified polyphenylene ether, a thermoplastic polyester, ultra high molecular weight polyethylene, methylpentene polymer, vinyl alcohol copolymer.
Special engineering plastics and cross-linked type non crosslinked branch. Cross-linked type: poly amino bismaleimide triazine crosslinking poly, three, polyimide, heat-resistant epoxy resin and other. Non cross-linked type: PSF, PES, PPS, polyimide, polyether ether ketone ( PEEK ) etc.
