Polycarbonate products give you a unique balance of helpful features including high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering plastic materials.
Polycarbonate is a very sturdy material. Although it offers tremendous impact-resistance, it's got reduced scratch-resistance and thus a hard coating can be applied to polycarbonate eyewear and polycarbonate exterior automotive components. The properties of polycarbonate tend to be similar those of polymethyl methacrylate (PMMA, acrylic), yet , polycarbonate is going to be stronger, it is usable in a wider temperature range and is a bit more expensive. This plastic polymer is highly transparent to visible light and it has better light transmission characteristics than many different types of glass.
Polycarbonate carries a glass transition temperature of about 150 °C (302 °F), so it softens slowly above this point and flows above about 300°C (572 °F). Tools ought to be held at warm to high temperatures, generally above 80 °C (176 °F) in order to make strain- and stress-free products.
Unlike most other thermoplastics, polycarbonate can undergo massive shape changes without breaking or cracking. For this reason, it could be processed and formed cold using standard sheet metal techniques, for instance forming bends with a brake. Even for sharp angle bends with a tight radius, no heating is usually necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are important, which should not be created from sheet metal. Understand that PMMA/Plexiglas, that is certainly similar in looks to polycarbonate, but it is brittle and can't be bent with out a heating process.
Polycarbonate is frequently found in eye protection, and also in other projectile-resistant optical type applications that would normally be thought of as requiring the use of glass, but require much higher impact-resistance. Many kinds of lenses are created from polycarbonate, including automotive headlamp lenses, lighting lenses, sunglass/eyeglass lenses, swimming and SCUBA goggles, and safety glasses for use in sporting helmets/masks and police riot gear. Windscreens in small motorized vehicles are commonly made from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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