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What is PC material

- Dec 04, 2017 -

What is PC material

PC also know as Polycarbonate.It is a macromolecule polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into many types such as aliphatic, aromatic, aliphatic-aromatic, and the like. Among them, the lower mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their use in engineering plastics.

Only aromatic polycarbonates obtained industrial production. As the structural specificity of polycarbonate, has become the top five engineering plastics in the fastest growing general engineering plastics.


Chemical properties

Polycarbonates (PC) are carbonic acid polyesters, and carbonic acid itself is not stable, but its derivatives (such as phosgene, urea, carbonate, carbonate) have some stability.

According to the different alcohol structure, the polycarbonate can be divided into aliphatic and aromatic two categories.

Aliphatic polycarbonate. Such as polyethylene carbonate, polytrimethylene carbonate and their copolymers, have low melting and glass transition temperatures and poor strength and can not be used as a structural material; however, due to their biocompatibility and biodegradability, In drug release carrier release, surgical sutures, bone support materials and other applications.

Polycarbonate is resistant to weak acids, weak alkalis, neutral oils.

Polycarbonate is not resistant to UV light, intolerant alkali.

PC is a linear carbonic acid polyester in which carbonic acid groups alternate with other groups. These groups can be aromatic, aliphatic, or both. Bisphenol A PC is the most important industrial products.

PC is an almost colorless glassy amorphous polymer with good optical properties. Poor hydrolysis resistance of PC, can not be used to repeatedly withstand high pressure steam products.

PC main performance defects is hydrolysis stability is not high enough, sensitive to the gap, organic chemical resistance, scratch resistance is poor, long-term exposure to ultraviolet light will be yellow. Like other resins, PC is easily attacked by some organic solvents.

PC material has flame retardant, wear-resistant. Antioxidant.

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physical properties

Heat distortion temperature: 135 ° C low temperature -45 ° C

Polycarbonate colorless, transparent, heat-resistant, impact-resistant, flame-retardant BI grade, have good mechanical properties in ordinary use temperature. Compared with polymethylmethacrylate, polycarbonate has good impact resistance, high refractive index and good processability, and has UL94 V-0 flame retardancy without additives. Polymethylmethacrylate, however, is less expensive than polycarbonate and can be used to produce large devices by bulk polymerization.

Poor wear resistance of polycarbonate. Some polycarbonate devices used for wear and tear require special treatment of the surface.


Anti-static PC, conductive PC, plus fiber fire PC, UV weathering PC, food grade PC, chemical resistance PC.

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