Makrolon Polycarbonate materials offer a balance of useful features which include temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastic materials.
Polycarbonate is a very tough material. Though it has extraordinary impact-resistance, it's got reduced scratch-resistance and thus a hard coating could be applied to polycarbonate eye protection as well as polycarbonate exterior automotive equipment. The properties of polycarbonate are along the lines of those of polymethyl methacrylate (PMMA, acrylic), yet , 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 it has better light transmission characteristics than several types of glass.
Polycarbonate has a glass transition temperature of about 150 °C (302 °F), as a result it softens gradually above this point and flows above about 300°C (572 °F). Tools ought to be held at high temperatures, generally above 80 °C (176 °F) to make strain- and reduced stress products.
Unlike many thermoplastics, polycarbonate can undergo massive shape changes without breaking or cracking. Because of this, it could be processed and formed cold using sheet metal techniques, such as forming bends on a brake. For even sharp angle bends having a tight radius, no heating is generally necessary. This makes it attractive prototyping applications where transparent or electrically non-conductive parts are necessary, which can not be produced from sheet metal. Note that PMMA/Plexiglas, which happens to be similar in appearance to polycarbonate, but it is brittle and can't be bent at room temperature.
Polycarbonate is frequently used in eye protection, and also in other projectile-resistant optical type applications that would normally be thought of as requiring 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 visors for use in sporting helmets/masks and police riot gear. Windscreens in small motorized vehicles are normally produced from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
Tuesday, February 16, 2021
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