Covestro Makrolon Polycarbonate Flat Sheet offering light weight and break resistance
Bayer Makrolon Polycarbonate materials offer a unique balance of helpful features including temp resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering plastics.
Polycarbonate is a very durable material. Whilst it features greater impact-resistance, it has got a lower scratch-resistance and thus a hard coating could be applied to polycarbonate eye wear lenses and polycarbonate exterior auto components. The characteristics of polycarbonate are similar those of Acrylic PMMA materials, but polycarbonate is always 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 most grades of glass.
Polycarbonate carries a glass transition temperature near 150 °C (302 °F), therefore it softens slowly above this point and flows above about 300°C (572 °F). Tools need to be held at warm to high temperatures, generally above 80 °C (176 °F) to produce strain- and almost stress free products.
Unlike most thermoplastics, polycarbonate can undergo dramatic changes in basic shape without cracking. Because of this, for small changes in shape, it can be processed and formed without needing to be heated using standard sheet metal techniques, for instance forming bends on a brake. Even for 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. Please keep in mind PMMA/Plexiglas, that is certainly similar in appearance to polycarbonate, but it is brittle and can't be bent with out a heating process.
Polycarbonate is often found in eye protection, as well as in other projectile-resistant optical type applications that would normally indicate the use of glass, but require much greater impact-resistance. Several types of lenses are created 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 fabricated from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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