1、PP( 1.0-2.5).
2. Polymethyl methacrylate (0. 1-0.4).
3. Personal computers (0.5-0.7).
4. Nylon 6(0.5- 1.5).
5. Nylon 6-GF(0.4-0.6 parts).
6、PA66(0.8- 1.5)。
7、PA66-GF(0.5)。
8、PS(0.4-0.7)。
9、ABS(0.4-0.9)。
10、ABS-GF(0. 1-0.2).
1 1、POM(2-2.5)。
12、PBT( 1.5-2.0)。
13, pets (2-2.5).
Extended data:
There are basically two types: the first is linear structure, and the polymer compound with this structure is called linear polymer compound; The second is the bulk structure, and the polymer compound with this structure is called bulk polymer compound. Some polymers have branched chains, which are called branched polymers and belong to linear structure. Although some polymers are cross-linked between molecules, the degree of cross-linking is low, which is called network structure and belongs to bulk structure.
Two different structures show two opposite properties. Linear structure, melting by heating, less hardness and brittleness. The body structure is hard and brittle. There are two kinds of polymers in plastics, one is thermoplastic made of linear polymer, and the other is thermosetting plastic made of bulk polymer.
Properties and uses of common plastic varieties
1. Polyethylene: Commonly used polyethylene can be divided into low density polyethylene (LDPE), high density polyethylene (HDPE) and linear low density polyethylene (LLDPE). Among the three, HDPE has better thermal, electrical and mechanical properties, while LDPE and LLDPE have better flexibility, impact properties and film-forming properties.
LDPE and LLDPE are mainly used in packaging film, agricultural film and plastic modification. And HDPE is widely used in films, pipes, daily necessities for injection and other fields.
2. Polypropylene: Relatively speaking, polypropylene has more varieties, more complex uses and many fields. The main varieties are homopolypropylene, block polypropylene (copp) and random polypropylene (rapp).
According to different uses, homopolymerization is mainly used in drawing, fiber, injection molding, BOPP film and other fields. Polypropylene is mainly used for injection-molded parts, modified raw materials, daily injection-molded products and pipes of household appliances, and random polypropylene is mainly used for transparent products, high-performance products and high-performance pipes.
3.PVC: Because of its low cost and self-flame retardant characteristics, it is widely used in the construction field, especially in sewer pipes, plastic steel doors and windows, plates, artificial leather and so on.
4. Polystyrene: As a transparent raw material, it is widely used, such as car lampshades, daily transparent parts, transparent cups and cans.
5.ABS is a widely used engineering plastic with excellent physical, mechanical and thermal properties. Widely used in household appliances, panels, masks, components, accessories and so on. Especially household appliances, such as washing machines, air conditioners, refrigerators, electric fans, etc. It is also widely used in plastic modification.
References:
Baidu encyclopedia-plastic