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Polycarbonate Hollow Sheet

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Time : 2022-03-07 Hits : 28

Polycarbonate (PC for short, its name comes from its internal CO3 group. ) is a polymer containing carbonate groups in the molecular chain, which can be divided into aliphatic, aromatic, and aliphatic-aromatic types according to the structure of the ester group. Among them, the mechanical properties of aliphatic and aliphatic-aromatic polycarbonate are low, thus limiting its application in engineering plastics. At present, only aromatic polycarbonate has been industrially produced. Due to the structural peculiarities of polycarbonate, it has become the fastest growing general engineering plastic among the five major engineering plastics.
Chemical Properties
Polycarbonate is resistant to weak acids, weak bases and neutral oils. PC is an almost colorless glassy amorphous polymer with good optical properties. PC high molecular weight resin has high toughness, cantilever beam notch impact strength of 600~900J/m, heat deflection temperature of unfilled grade is about 130°C, glass fiber reinforced can increase this value by 10°C. Bending modulus of PC can reach 2400 MPa or more, the resin can be processed into large rigid products.
Physical Properties
Polycarbonate: Density: 1.18-1.22 g/cm^3 Linear expansion: 3.8×10^-5 cm/°C Heat deflection 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 at ordinary use temperatures. Compared with the performance close to polymethyl methacrylate, polycarbonate has good impact resistance, high refractive index, good processing performance, and UL94 V-0 level flame retardant performance without additives.
Main advantages

1. High strength and elasticity, high impact strength, wide temperature range;
2. High transparency and free coloring;
3. Low shrinkage rate and good dimensional stability.
4. Good fatigue resistance;
5. Good weather resistance;
6. Excellent electrical characteristics.
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