Polycarbonate-PC Material usage in CNC products

Basic Introduction

Polycarbonate (abbreviated as PC in English), also known as PC plastic, is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, the mechanical properties of aliphatic and aliphatic-aromatic polycarbonates are relatively low, which limits their application in engineering plastics.

Only aromatic polycarbonate has been industrialized. Due to the particularity of the structure of polycarbonate, it has become the fastest growing general engineering plastic among the five major engineering plastics.

Mechanical Properties

Density: 1.18-1.22 g/cm3 Linear expansion rate: 3.8×10-5 cm/°C Heat deformation temperature: 135°C Low temperature -45°C

Polycarbonate is colorless and transparent, heat-resistant, impact-resistant, flame-retardant BI grade, and has good mechanical properties within the normal use temperature. Compared with polymethyl methacrylate, which has similar performance, polycarbonate has better impact resistance, high refractive index, good processing performance, and has UL94 V-2 flame retardant performance without additives. However, polymethyl methacrylate is cheaper than polycarbonate, and large devices can be produced by bulk polymerization.

The wear resistance of materials is relative. If ABS material is compared with PC Material usage in CNC products, PC material has better wear resistance. However, compared with most plastic materials, the wear resistance of polycarbonate is relatively poor, at a medium to low level, so some polycarbonate devices used for easy wear need special surface treatment.