Polycarbonate materials give you a balance of beneficial features including temp resistance, impact resistance and optical properties position polycarbonates in between commodity plastics and engineering materials.
Polycarbonate is a very sturdy material. Whilst it offers tremendous impact-resistance, it has got a lower scratch-resistance and so a hard coating may be applied to polycarbonate eye wear lenses as well as polycarbonate exterior automobile components. The characteristics relating to polycarbonate are generally like those of common Acrylic materials, but polycarbonate definitely is 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 many different types of glass.
Polycarbonate has a glass transition temperature of approximately 150 °C (302 °F), so it softens slowly 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 produce strain- and stress-free products.
Unlike most thermoplastics, polycarbonate can undergo large deformations without breaking. As a result, it is sometimes processed and formed without needing to be heated using sheet metal techniques, such as forming bends on a brake. For even 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 required, which may not be crafted 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 without heating.
Polycarbonate is frequently 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. Many different types 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 normally made of polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
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