Polycarbonate (abbreviated as PC) is a high molecular polymer containing carbonate groups in its molecular chain. It can be categorized into various types, such as aliphatic, aromatic, and aliphatic-aromatic, based on the structure of the ester groups. Due to the lower mechanical properties of aliphatic and aliphatic-aromatic polycarbonates, their application in engineering plastics is limited.Polycarbonate is colorless, transparent, heat-resistant, impact-resistant, and flame-retardant with a BI rating, maintaining excellent mechanical properties within normal operating temperatures. Compared to polycarbonate with similar properties, it has better impact resistance, a higher refractive index, and good processing capabilities, and it achieves UL94 V-2 flame-retardant properties without additives. However, polycarbonate is more expensive than PMMA and can produce larger components through bulk polymerization. Polycarbonate has poor wear resistance, and some polycarbonate devices for wear-prone applications require special surface treatment.