Knowledge

Polyvinyl chloride plastics are polymerized from vinyl chloride monomers and are one of the commonly used thermoplastics.

Polystyrene has the disadvantages of high brittleness, low softening temperature, and easy cracking, which seriously affects its use.

The structural formula of polystyrene is a linear structure, but there are huge phenyl groups with continuous intervals on the carbon atoms of the molecular chain, which determines the special propert

Polystyrene is a plastic with a linear structure that is polymerized from styrene monomers.

Polypropylene plastics are mainly used for films, pipes, bottles, etc. Due to the high softening point of heat, it can be used to make tableware, such as bowls, basins, cups, etc.

Copolymerization with vinyl chloride, acrylic acid and other monomers can improve the cold resistance, flammability, and molding fluidity of polypropylene.

In addition to fuming nitric acid and fuming sulfuric acid, it has good resistance to other chemical corrosion.

Polypropylene plastic (Polypropylene) is obtained by polymerizing propylene with gasoline as a solvent under the action of methane-aluminum and titanium trichloride catalysts under the conditions of 2

Low density polyethylene can be used in a wide range of applications. Extrusion blow molding can be used to produce films and hollow containers.

PE is a milky white waxy translucent material, which is lighter than water, odorless, tasteless and non-toxic;

Also known as "high pressure soft plastic". It is made of ethylene monomer with trace oxygen as initiator.

Polyethylene is a polymer of ethylene monomer. The raw materials for production are petroleum, coke oven gas or alcohol.