Polycarbonate products have a balance of useful features which include high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastic materials and engineering materials.
Polycarbonate is definitely a durable material. Whilst it has outstanding impact-resistance, it possesses minimal scratch-resistance and so a hard coating could be applied to polycarbonate eyeglasses lenses as well as polycarbonate exterior vehicle components. The characteristics relating to polycarbonate tend to be similar those of Acrylic PMMA materials, yet , 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 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 must be held at higher temperatures, generally above 80 °C (176 °F) to help with making strain- and reduced stress products.
Unlike most thermoplastics, polycarbonate can undergo massive changes in basic shape without breaking or cracking. Because of that, it is sometimes processed and formed at room temperature using sheet metal techniques, which include forming bends with a brake. Even for sharp angle bends with a tight radius, no heating is usually necessary. This makes it attractive prototyping applications where transparent or electrically non-conductive parts are essential, which may not be crafted from sheet metal. Keep in mind that PMMA/Plexiglas, that is certainly similar in looks to polycarbonate, but it is brittle and cannot be bent at room temperature.
Polycarbonate is commonly found in eye protection, as well as in other projectile-resistant viewing and lighting applications that would normally require the use of glass, but require 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 glasses 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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