Polycarbonate (PC) is a transparent
thermoplastic polymer known for its exceptional impact resistance, optical
clarity, and high heat resistance. It is widely used in applications where
durability and optical properties are critical.
Here are some key details about polycarbonate along with its CAS number:
- Chemical formula: (C16H14O3)n
- CAS Number: 25037-45-0 (Polycarbonate)
Polycarbonate is produced through the reaction of bisphenol A (BPA) with phosgene or diphenyl carbonate. The resulting polymer is transparent and amorphous, with excellent mechanical properties.
Here are some common applications of polycarbonate:
1. Transparent Glazing: Polycarbonate sheets are used in architectural glazing, skylights, greenhouse panels, and safety barriers due to their high transparency, impact resistance, and lightweight nature.
2. Consumer Electronics: Polycarbonate is used in the production of electronic components such as laptop and smartphone casings, optical discs, and LED light diffusers due to its durability, thermal stability, and optical clarity.
3. Automotive Parts: Polycarbonate is used in automotive applications such as headlight lenses, instrument panels, and exterior trim components due to its impact resistance, weatherability, and ability to be molded into complex shapes.
4. Safety Equipment: Polycarbonate is used in safety equipment such as safety goggles, face shields, and riot shields due to its impact resistance and ability to withstand high-speed impacts without shattering.
5. Medical Devices: Polycarbonate is used in medical devices such as infusion sets, blood oxygenators, and surgical instruments due to its biocompatibility, sterilizability, and transparency.
6. Packaging: Polycarbonate is used in packaging applications such as food containers, bottles, and optical media cases due to its toughness, clarity, and resistance to chemicals and scratches.
Polycarbonate is valued for its combination of properties, including transparency, toughness, and heat resistance, making it suitable for a wide range of applications across various industries. However, concerns have been raised about the environmental and health impacts of bisphenol A (BPA), a precursor used in the production of polycarbonate. Efforts are underway to develop BPA-free alternatives and improve recycling processes for polycarbonate materials.
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