What are PC and PVC materials? What's their difference?

PC: Polycarbonate (PC for short) is a polymer with carbonate groups in its molecular chain, which can be divided into aliphatic, aromatic, aliphatic-aromatic and other types according to the structure of ester groups. Among them, aliphatic and aliphatic-aromatic polycarbonates have low mechanical properties, which limits their application in engineering plastics.

PVC (polyvinyl chloride for short) is a polymer obtained by radical polymerization of vinyl chloride monomer (VCM for short) in initiators such as peroxides and azo compounds, or under the action of light and heat. Vinyl chloride homopolymer and vinyl chloride polymer are collectively referred to as vinyl chloride resin.

Difference: PC is a kind of polycarbonate plastic, which belongs to engineering plastics. Good transparency, high strength, good weather resistance, often used as optical products, optical disks, solar panels and so on. PVC is a kind of polyvinyl chloride plastic, which belongs to general plastic. Rigid (plasticizer-free) PVC products are often used as plastic doors and windows, water pipes, threading pipes, plates and so on. And soft (plasticizer-containing) PVC products are often used as films, flexible boards, flexible films, hoses and medical products (such as infusion bags). ).

4.4' s three application fields. PC engineering plastics are glass assembly industry, automobile industry and electronic appliance industry, followed by industrial machinery parts, compact discs, packaging, computers and other office equipment, medical care, films, leisure and protective articles. PC can be used as door and window glass, and PC laminates are widely used as protective windows in banks, embassies, detention centers and public places, as well as aircraft cabin covers, lighting equipment, industrial safety baffles and bulletproof glass.

5.PVC is one of the largest plastic products in the world, which is cheap and widely used. PVC resin is white or light yellow powder. Different additives can be added according to different uses, and PVC plastics can show different physical and mechanical properties. Adding a proper amount of plasticizer into PVC resin can make various hard, soft and transparent products.