Polycarbonate products offer a balance of useful features including temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering materials.
Polycarbonate is definitely a rugged material. Even though it offers exceptional impact-resistance, it possesses lower scratch-resistance and so a hard coating typically is applied to polycarbonate eye protection lenses and polycarbonate exterior automobile equipment. The characteristics associated with polycarbonate are generally similar those of common Acrylic materials, but polycarbonate is definitely 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 has better light transmission characteristics than several types of glass.
Polycarbonate carries a glass transition temperature of about 150 °C (302 °F), in order that it softens slowly above this point and flows above about 300°C (572 °F). Tools are required to be held at high temperatures, generally above 80 °C (176 °F) to produce strain- and reduced stress products.
Unlike most other thermoplastics, polycarbonate can undergo massive changes in basic shape without breaking or cracking. As a result, it could be processed and formed at room temperature using standard sheet metal techniques, for instance forming bends on a brake. For even sharp angle bends with a tight radius, no heating is usually necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are needed, which may not be made from sheet metal. Remember that PMMA/Plexiglas, that is certainly similar in appearance to polycarbonate, but is brittle and cannot be bent without heating.
Polycarbonate is frequently utilized in eye protection, along with other projectile-resistant see through applications that would normally be thought of as requiring the use of glass, but require greater impact-resistance. Many kinds of lenses are manufactured from polycarbonate, including automotive headlamp lenses, lighting lenses, sunglass/eyeglass lenses, swimming and SCUBA goggles, and safety goggles for use in sporting helmets/masks and police riot gear. Windscreens in small motorized vehicles are commonly made up of polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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