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FAQ

Is plastic bucket and plastic bottle the same raw material?

When the number of the triangle in the bottom of the plastic barrel is "3", the main component of the plastic barrel is polyvinyl chloride, also called PVC. This kind of plastic barrels can heat 81 DEG C, and the production process will use a lot of plasticizer (such as plasticizer, DOP) and heavy metal containing heat stabilizer, and the synthesis process is difficult to eliminate the presence of free monomer, these are considered to be toxic. Therefore, this kind of plastic bucket can not be placed people can eat directly, but also can not be recycled. Since the PVC used in this kind of plastic barrel is a kind of plastic which is not high temperature resistant, it can not be used in places where the temperature is higher.

Dissolve in 0.3 of the LDPE plastic raw materials what?

Linear low density polyethylene (English: Linear Low Density Polyethylene, referred to as: LLDPE), linear low density polyethylene (LLDPE), is a senior of ethylene and alpha olefins (such as -1, -1, butylene hexene octenes methylpentene -1, four -1) in the presence of catalyst, a copolymer with high or low pressure polymerization of density is between 0.915 ~ 0.9 low density polyethylene using 40 g / cm3.

What kind of plastic material is used for medical instruments?

Plastic) inevitable in the process of polymerization reactor, to come into contact with the metal catalyst. Often contain trace metal ions, according to the national standard of medical plastic, residues are clearly defined for zinc, lead, cadmium, copper, barium, tin and other metal ions;

Characteristics and uses of CA plastics

Cellulose acetate (Cellulose Acetate, hereinafter referred to as CA, or cellulose acetate, cellulose acetate) was first prepared in 1865 and is the acetate of cellulose. CA used for photographic film base, is a component of some adhesive for synthetic fiber.

What are the raw materials for plastic products? Resin or oil?

Plastic is a kind of macromolecule organic material with resin as its main component. It can form a definite shape at a certain temperature and pressure and maintain a definite shape at normal temperature.Usually refers to the resin conversion or melting range when heated into force with mobility, at room temperature is organic polymer solid or semi-solid or liquid plastic, it is the most basic and most important components. Broadly speaking, in the plastics industry, any polymer used as a basic material for plastics can be called resins.

How many types of plastic materials are there?

According to the different uses of plastics is divided into general and engineering plastics in general plastic refers to the yield, low price and wide application range of plastics, mainly including polyolefin, PVC, polystyrene, phenolic and aminoplastic five varieties. Many of the products used in everyday life are made from these general plastics. Engineering plastics are plastics that can be used as engineering structural materials and instead of metals to make machine parts and components. Such as polyamide, polycarbonate, POM, ABS resin, PTFE, polyester, polysulfone, polyimide and so on. Engineering plastics has the characteristics of low density, high chemical stability, good mechanical properties, excellent electrical insulation, easy processing, widely used in automobiles, electrical appliances, chemical industry, machinery, instruments, and other industries, is also used in space navigation, missiles, etc..

What do you mean by grade 1, class two or class three in plastic?

Three grade material refers to the raw material has been used two times or more times, the processing of particles, and its elasticity, toughness and other aspects are not very good.

What machines and materials are needed for the manufacture of disposable plastic cups?

The material required is PP, which is polypropylene.The machines needed are injection molding machines, shredders and dryers.PP plastic, chemical name: polypropylene, specific gravity: 0.9-0.91 g / cubic centimeter molding shrinkage: 1.0-2.5% molding temperature: 160-220 DEG C.