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/What is the difference between PVC, ABS, PP, PE plastic materials(I)
What is the difference between PVC, ABS, PP, PE plastic materials(I) Aug 31, 2020

The difference between ABS, PE, PP, PVC plastic materials

PET polyethylene terephthalate.

PE is polyethylene.

PVC is polyvinyl chloride.

PP is polypropylene.

ABS is a copolymer of acrylonitrile, butadiene and ethylene.

PEP is a copolymer of polyethylene glycol (PEG) and propylene oxide (PO).

①Polyvinyl chloride (PVC) is the most used plastic in construction. The density of rigid polyvinyl chloride is 1.38~1.43g/cm3, with high mechanical strength and good chemical stability. ②Polyethylene (PE) ③Polypropylene (PP) The density of polypropylene is the smallest among all plastics, about 0.90 about. Polypropylene is commonly used to produce construction products such as pipes and sanitary ware. ④ Polyvinyl (PS) polystyrene is a colorless, transparent, glass-like plastic. ⑤ABS plastic ABS plastic is a modified polystyrene plastic composed of three components based on acrylonitrile (A), butadiene (B) and styrene (S).


PS: Polystyrene


It is a colorless and transparent plastic material. It has a glass transition temperature higher than 100 degrees Celsius, so it is often used to make various disposable containers that need to withstand the temperature of boiling water, and disposable foam lunch boxes.


PP: Polypropylene


It is a semi-finished thermoplastic. It has high impact resistance, strong mechanical properties, resistance to a variety of organic solvents and acid and alkali corrosion. It has a wide range of applications in the industry and is one of the common polymer materials. Australian coins are also made of polypropylene.


PE: Polyethylene


It is one of the most commonly used polymer materials in daily life, and it is widely used in the manufacture of plastic bags, plastic films, and milk barrels.


Polyethylene is resistant to a variety of organic solvents and acid and alkali corrosion, but it is not resistant to oxidizing acids, such as nitric acid. Polyethylene will be oxidized in an oxidizing environment.


Polyethylene can be considered transparent in the film state, but when it exists in the form of lumps, due to the large number of crystals inside, it will undergo strong light scattering and become opaque. The degree of polyethylene knotting is affected by the number of branches. The more branches, the more difficult it is to knot the product. The melting temperature of polyethylene crystals is also affected by the number of branch chains, which are distributed from 90 degrees Celsius to 130 degrees Celsius. The more branch chains, the lower the melting temperature. Single polyethylene products can usually be prepared by dissolving high-density polyethylene in xylene in an environment above 130 degrees Celsius.


Structural formula: -CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-

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