Polycarbonate (PC), polycarbonate is a molecular chain containing [O-R-O-CO] chain thermoplastic resin according to the molecular structure of the ester can be divided into aliphatic, alicyclic and aromatic type of fat, which has the practical value of the aromatic polycarbonate, and bisphenol A polycarbonate as the most important, molecular weight is usually 3-10 million.Polycarbonate, English Polycarbonate, referred to as PC.PC is a kind of amorphous, odorless, non-toxic, highly transparent colorless or slightly yellow thermoplastic engineering plastics, has excellent physical and mechanical properties, especially excellent shock resistance, tensile strength, bending strength, compressive strength and high creep; small size is stable; good heat resistance and low temperature resistance, mechanical properties, stability in a wide range of temperature dimensional stability, electrical properties and flame retardant properties, can be used for a long time at -60~120 deg.c; no obvious melting point, a molten state at 220-230 DEG C; the molecular chain rigidity, melt viscosity and high water absorption resin; small, small shrinkage, high precision, good dimensional stability, permeability of films is small; self extinguishing materials; stable to light, but not UV resistance, good weather resistance; oil resistance, acid and alkali resistance, no oxygen acid and amine, Ketones are soluble in chlorinated hydrocarbons and aromatic solvents. They are easy to cause hydrolysis and cracking in water for a long time. Because of their poor fatigue resistance, they are prone to stress cracking, poor solvent resistance and poor wear resistance
