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Last updated: November 25, 2018

What Does Polycarbonate Mean?

Polycarbonate is a polyester made by the mixing of phenyl groups, carbonate groups and two methyl groups, and is formed by the reaction of carbonyl chloride and bisphenol A in an interfacial process. It is a transparent plastic used in making shatter windows, lightweight eyeglass lenses, packaging, interior cladding, outdoor glazing, roofing designs, automotive, electrical and electronics, and personal security applications. It is made in different grades on the basis of the application desired.


Corrosionpedia Explains Polycarbonate

Polycarbonate is similar to acrylic and has glass properties: it is transparent and has better light transmission than glass. Products made from this material have the following qualities:

  • High impact and fracture resistance
  • Better heat resistance
  • It is relatively light (half that of glass); it is easy to handle
  • Machinable and easy to fabricate to meet special needs
  • It has a high refractive index
  • Durable with excellent toughness

Polycarbonate is stable over a range of temperatures with a glass transition temperature of about 297°F (147°C) and flows at about 311 °F (155 °C). It can be affected by scratch, UV rays and chemicals, but the addition of special additives can improve the resistance of the plastic against the constraints. Products made from polycarbonate go through two dominant processes: extrusion and injection molding.


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