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ABS (acronym for acrylonitrile butadiene styrene, which refers to acrylonitrile butadiene styrene copolymer) is a thermoplastic polymer structural material with high strength, good toughness and easy processing and molding, also known as ABS resin.

Acrylic, also known as PMMA or plexiglass, comes from English acrylic (acrylic plastic), and its chemical name is polymethylmethacrylate. It is an important plastic polymer material developed earlier. It has good transparency, chemical stability and weather resistance, easy dyeing, easy processing and beautiful appearance. It is widely used in the construction industry. Plexiglass products can usually be divided into pouring board, Extrusion board and molding plastic.

Aluminum based alloy with a certain amount of other alloying elements is one of the light metal materials. In addition to the general characteristics of aluminum, aluminum alloys also have some specific characteristics of alloys due to the different types and quantities of alloying elements. The density of aluminum alloy is 2.63 ~ 2.85g/cm3, which has high strength（ σ B is 110 ~ 650mpa), the specific strength is close to that of high alloy steel, and the specific stiffness is higher than that of steel. It has good casting performance and plastic processing performance, good electrical and thermal conductivity, good corrosion resistance and weldability. It can be used as structural materials. It is widely used in aerospace, aviation, transportation, construction, electromechanical, lightweight and daily necessities.

Brass is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. If it is a variety of alloys composed of more than two elements, it is called special brass. Brass has strong wear resistance. Brass is often used to make valves, water pipes, connecting pipes of internal and external units of air conditioners and radiators.

Zinc alloy is an alloy composed of zinc and other elements. The commonly added alloy elements include aluminum, copper, magnesium, cadmium, lead, titanium and so on. Zinc alloy has the advantages of low melting point, good fluidity, easy fusion welding, brazing and plastic processing, corrosion resistance in the atmosphere, easy recovery and remelting of residual waste, but low creep strength, easy natural aging and dimensional change. Prepared by melting method, die-casting or pressure processing.

Red copper is pure copper, also known as red copper, which is the simple substance of copper. It is named because its color is purplish red. See copper for various properties. Red copper is industrial pure copper. Its melting point is 1083℃, and there is no isomeric transformation. Its relative density is 8.9, five times that of magnesium. The mass of the same volume is about 15% heavier than that of ordinary steel. It is generally called red copper because it is rose red and purple after the formation of oxide film on the surface. It is copper containing certain oxygen, so it is also called oxygen containing copper.

Polyamide, commonly known as nylon and English name polyamide (PA for short), is the general name of thermoplastic resin containing repeated amide group - [nhco] - in the molecular main chain, including aliphatic PA, aliphatic aromatic PA and aromatic PA. Aliphatic PA has many varieties, large output and wide application. Its name is determined by the specific number of carbon atoms of the synthetic monomer. It was invented by the famous American chemist Carol Sears and his research team.

Polyether ether ketone (PEEK) is a high polymer composed of repeating units with one ketone bond and two ether bonds in the main chain structure. It is a special polymer material. It has physical and chemical properties such as high temperature resistance and chemical corrosion resistance. It is a kind of semi crystalline polymer materials. It can be used as high temperature resistant structural materials and electrical insulation materials. It can be compounded with glass fiber or carbon fiber to prepare reinforcement materials. A kind of polyarylether polymers obtained by condensation with aromatic bisphenol are generally used. This material has a large number of applications in aerospace, medical devices (as artificial bone to repair bone defects) and industrial fields.

Polycarbonate (PC for short), also known as PC plastic; It is a high molecular polymer containing carbonate group in the molecular chain. According to the structure of ester group, it can be divided into aliphatic, aromatic, aliphatic aromatic and other types. Due to the low mechanical properties of aliphatic and aliphatic aromatic polycarbonates, their application in engineering plastics is limited.

Polypropylene, abbreviated as PP, is a colorless, odorless, non-toxic and translucent solid substance. Polypropylene is a kind of thermoplastic synthetic resin with excellent performance. It is a colorless and translucent thermoplastic lightweight general-purpose plastic. With chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high wear-resistant processing properties, polypropylene has been rapidly developed and applied in many fields, such as machinery, automobile, electronics and appliances, construction, textile, packaging, agriculture, forestry and fishery, food industry and so on.

Polyphenylene ether (PPS) is a new type of refractory resin with high temperature resistance, high mechanical strength and good thermal stability. It is widely used in the fields of electronics, automobile, machinery and chemical industry.

Polyoxymethylene (POM), also known as acetal resin, polyoxymethylene and polyacetal, is a thermoplastic crystalline polymer, known as "super steel" or "saigang".

Polyethylene (PE) is a thermoplastic resin prepared by polymerization of ethylene. In industry, it also includes ethylene and small amounts α- Copolymers of olefins. Polyethylene is odorless, non-toxic and feels like wax. It has excellent low-temperature resistance (the minimum service temperature can reach - 100 ~ - 70 ° C), good chemical stability and can resist the erosion of most acids and bases (not resistant to acids with oxidizing properties). It is insoluble in general solvents at room temperature, with small water absorption and excellent electrical insulation.

Bakelite is the first variety of plastics to be put into industrial production. The chemical name of bakelite is phenolic plastic. It has high mechanical strength, good insulation, heat resistance and corrosion resistance. Therefore, it is commonly used in the manufacture of electrical materials, such as switches, lamp caps, headphones, telephone casings, meter casings, etc. "bakelite" is named from this.

Polybutylene terephthalate (PBT), a polyester made by polycondensation of terephthalic acid and 1,4-butanediol, is an important thermoplastic polyester and one of the five engineering plastics. Polybutylene terephthalate is a milky white, translucent to opaque, semi crystalline thermoplastic polyester with high heat resistance. It is not resistant to strong acid and alkali. It is resistant to organic solvents. It is combustible and decomposes at high temperature.

Polyvinyl chloride (PVC) is a polymer polymerized by vinyl chloride monomer (VCM) in peroxide, azo compound and other initiators or according to the free radical polymerization mechanism under the action of light and heat. Vinyl chloride homopolymer and vinyl chloride copolymer are collectively referred to as vinyl chloride resin.