Bayer Makrolon Polycarbonate materials give you a great blend of helpful features including temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastics and engineering materials.
Polycarbonate is a very long-lasting material. Though it offers extraordinary impact-resistance, it has got low scratch-resistance and so a hard coating can be applied to polycarbonate eye protection lenses and polycarbonate exterior automotive equipment. The characteristics associated with polycarbonate tend to be similar to those of polymethyl methacrylate (PMMA, acrylic), but polycarbonate is undoubtedly 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 kinds of glass.
Polycarbonate carries a glass transition temperature of approximately 150 °C (302 °F), therefore 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 make strain- and almost stress free products.
Unlike most thermoplastics, polycarbonate can undergo large changes in basic shape without cracking or breaking. Due to this fact, it may be processed and formed at room temperature using standard 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 useful for 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, that is similar in looks to polycarbonate, but it's brittle and cannot be bent without heating.
The light weight of polycarbonate, in contrast to glass, has led to growth and development of electronic display screens that replace glass materials with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink and several LCD screens, though CRT, plasma screen and other LCD technologies which still require glass for its higher melting temperature and its ability to be etched with finer detail.
Other types of items created from Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, high impact riot shields, instrument panels, and common style blender jars. Many toys and hobby goods are made out of polycarbonate parts, e.g. fins, gyro mounts, and flybar locks for use with radio-controlled helicopters.
For use in applications exposed to weathering or UV-radiation, a special surface treatment could be needed. This either can be a coating (e.g. for improved abrasion resistance), or as a coextrusion for enhanced weathering resistance.
The Makrolon Polycarbonate is a thermoplastic that at the beginning, starts as a solid plastic material in the form of small pellets. In a manufacturing process called injection molding, the pellets are heated until they melt. The liquid polycarbonate is then rapidly injected into a mold, compressed under high pressure and cooled to produce a finished product in less than a minute.
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