Polycarbonate (PC) is a semi-crystalline thermoplastic polymerized from phthalic acid and dimethyl terephthalate monomers. It has many excellent features, including:

**High strength: **PC has high strength and stiffness and can withstand large external forces without deformation or breakage.
**High Impact Resistance: **PC has high impact resistance and can withstand large impacts without breaking.
**Good heat resistance: **The melting point of PC is 240-260℃, and can reach 130-140℃ under continuous use temperature. Therefore, PC can be used to make products that require resistance to high temperatures.
**Good optical properties: **PC has good transparency and light transmittance and can be used to make products that require transparency.
**Good electrical insulation: **PC has good electrical insulation and can be used to make products that require insulation.
Disadvantages of PC include:

**High Cost: **PC is expensive and therefore not suitable for making cost-sensitive products.
**Flammability: **PC has a certain degree of flammability, so it should not be used to make products that require fire resistance.
PCs are used in a wide variety of products including:

**Optical products: **PC is used to make optical lenses, optical components and optical instruments.
**Electronic products: **PC is used to make computer casings, mobile phone casings, electronic components and electronic equipment.
**Building materials: **PC is used to make building doors and windows, building panels and building structures.
**Auto parts: **PC is used to make car shells, car interiors and car parts.
PC is a high-performance plastic with a wide range of applications.