Polycarbonate materials have a balance of helpful features which include temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering materials.
Polycarbonate is a very long-lasting material. Even though it has higher impact-resistance, it has got minimal scratch-resistance and thus a hard coating could be applied to polycarbonate eye protection and polycarbonate exterior vehicle equipment. The characteristics of polycarbonate tend to be along the lines of those of common Acrylic materials, except 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 most grades of glass.
Polycarbonate carries a glass transition temperature of about 150 °C (302 °F), in order that it softens gradually above this point and flows above about 300°C (572 °F). Tools should be held at high temperatures, generally above 80 °C (176 °F) to help with making strain- and reduced stress products.
Unlike most other thermoplastics, polycarbonate can undergo large shape changes without breaking or cracking. Therefore, it is sometimes processed and formed without needing to be heated using standard sheet metal techniques, such as forming bends on a brake. Even for sharp angle bends with a tight radius, no heating is generally necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are crucial, which should not be produced from sheet metal. Please keep in mind PMMA/Plexiglas, which happens to be similar in appearance to polycarbonate, but is brittle and can't be bent unless it is heated.
Polycarbonate is commonly utilized in eye protection, in addition to other projectile-resistant see through applications that would normally indicate the use of glass, but require much higher impact-resistance. Several types of lenses are manufactured 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 out of polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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