What are the common types of plastics
Our products such as shaker bottle
, straw cups, sports bottle, salad bowl, etc. are all plastic products, so what are the common types of plastics?
1.PET, polyethylene terephthalate Main application: The most common is used as a beverage bottle, screen protector and other transparent protective film. PET can also be spun, which is what we often call polyester. Therefore, there is a saying that recycled beverage bottles are made during the Olympics. Many sportswear that is sleek and lightweight is made of polyester. The clothing that was popular for a long time is "this is good", but it is limited to the backwardness of the spinning method at the time. It is true that the clothes are not as comfortable as the current ones. In addition, PET has many engineering applications.
2. PE, polyethylene (high density polyethylene: HDPE; low density polyethylene: LDPE) Main application: Currently PE is the most widely used plastic. With different modification methods, PE can be applied in all aspects of daily life. More representative ones include plastic drums, films, paper cup inner walls, water pipes and cable sheaths.
3. PVC, PVC main application: PVC is now used to manufacture some cheap artificial leather, foot mats, sewer pipes, etc.; due to its good electrical properties and certain self-flame retardant properties, it is widely used in the manufacture of wire and cable sheaths. . In addition, PVC is widely used in the industrial field, especially where high acid and alkali corrosion resistance is required.
4.PP, polypropylene Main application: PP is also widely used, such as packaging, toys, washbasins, buckets, hangers, cups, bottles, etc.; engineering applications such as car bumpers. The spun silk PP is called polypropylene and is common in textiles, nonwovens, ropes, fishing nets and other products.
5.PS, polystyrene Main applications: cheap transparent products, foam plastics, CD boxes, water cups, snack boxes, insulation linings, etc.
6. ABS, acrylonitrile-butadiene-styrene copolymer Main application: ABS is divided into a variety of three component content and molecular chain morphology, widely used in various electrical enclosures, office supplies components, helmets and doors and windows Pipes, etc., ABS in industry is often used for blending modification of other plastics.
7.PA, polyamide Main application: Another name for lifting polyamide: nylon, everyone must be familiar. The polyamide family is very powerful, whether it is PA6, PA66, PA11 or PA12, all of which have excellent physicochemical properties. This is why PA is widely used in the electronics, electrical and automotive industries. In life, nylon rope and nylon socks are also common items. The spun PA fibers are called nylon and are used for fishing lines, fishing nets, ropes and conveyor belts.
8.PC, polycarbonate Main application: PC has excellent mechanical properties, toughness and rigidity, and good light transmission. It is often used in transparent water cups, milk bottles, drinking buckets, CD substrates, lenses and lampshades.
9. Blends (XX-XX alloy) Since a single plastic is difficult to meet complex use requirements, the plastics industry often mixes different plastics together to form a plastic alloy, which can not only exploit the advantages of different materials, but also save development. The cost of new materials. Main applications: Plastic alloys are widely used in a variety of structural materials. For example, the outer casing of the mobile phone is mostly PC-ABS alloy; some sewer pipes are made of two kinds of PE alloys, called bimodal polyethylene, in order to meet the performance and processing requirements.