Plastic cups are divided into a variety of materials, different materials have different roles, and different prices.
PC (polycarbonate)
PC polycarbonate is a strong thermoplastic resin that gets its name from its internal CO3 group. It can be synthesized from bisphenol A and carbon oxychloride (COCl2). The more commonly used method is the melt ester exchange method (bisphenol A and diphenyl carbonate are synthesized through ester exchange and polycondensation reactions).
Use
The three major applications of PC plastic are glass assembly industry, automotive industry and electronics, electrical industry, followed by industrial machinery parts, CD-ROMs, packaging, computers and other office equipment, medical and health care, film, leisure and protective equipment, etc. PC can be used as windows and doors, PC laminate is widely used in banks, embassies, detention centers, and public **** places of protection, windows, used in aircraft hatch covers, lighting, and so on. windows, for aircraft hatch covers, lighting equipment, industrial safety baffles and bulletproof glass.
PP (polypropylene)
Polypropylene (Polypropylene, PP for short) is a semi-crystalline thermoplastic. It has high impact resistance, strong mechanical properties, and is resistant to a variety of organic solvents and acid and alkali corrosion. It has a wide range of applications in industry and is one of the usual common polymer materials. Australia's coins also use polypropylene production.
Use
Mainly used in a variety of long and short polypropylene fiber production, for the production of polypropylene woven bags, bags, injection molded products, etc. for the production of electrical appliances, telecommunications, lighting, lighting equipment and television sets, flame retardant parts.
PE (polyethylene)
Polyethylene (polyethylene, PE for short) is a thermoplastic resin produced by polymerization of ethylene. In industry, also includes ethylene and a small amount of α-olefin **** polymer. Polyethylene odorless, non-toxic, feel like wax, has excellent low-temperature resistance (the lowest use temperature up to -100 ~ -70 ° C), good chemical stability, can resist most of the acids and alkalis (not resistant to oxidizing properties of the acid). It is insoluble in general solvents at room temperature, with small water absorption and excellent electrical insulation.
Use
Pressure polyethylene: more than half of it is used for film products, followed by pipes, injection molding products, wire wrapping layer, etc.
Medium-low and pressure polyethylene: injection molding products and hollow products are mainly used.
Ultra-high-pressure polyethylene: due to the excellent comprehensive performance of ultra-high polymer polyethylene, it can be used as engineering plastics.
PS
PS (polystyrene plastics) refers to the macromolecular chain including styrene group of a class of plastics, including styrene and its **** polymer, the specific varieties include general polystyrene (GPPS), high impact polystyrene (HIPS), expandable polystyrene (EPS) and metallocene polystyrene (SPS) and so on.
Use
PS is widely used in the optical industry, this is because it has good light transmission due to the manufacture of optical glass and optical instruments, but also to produce transparent or brightly colored, such as lampshades, lighting apparatus, etc. PS can also produce many electrical components and instruments working in a high-frequency environment. Because PS plastic belongs to the difficult inert surface material, industry in the lamination, need to use professional PS glue bonding.
Individual use of PS for products, brittle, and in the PS to add a small amount of other substances, such as butadiene can significantly reduce the brittleness and improve the impact toughness of this plastic is called impact PS, its mechanical properties greatly improved, the plastic can be used to produce a number of excellent performance of mechanical parts and components to.
Summary of the PC, PS, is more used in industrial production, PP, PE can be done on the food material, so it is recommended to buy PP, PE material cups.
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