Polycarbonate plastic products offer a great blend of helpful features this includes temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering materials.
Polycarbonate is definitely a high quality material. Though it has greater impact-resistance, it’s got low scratch-resistance and thus a hard coating is often applied to polycarbonate eyewear lenses and polycarbonate exterior automobile components. The properties associated with polycarbonate are generally like those of Acrylic PMMA materials, yet , polycarbonate 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 most grades of glass.
Polycarbonate has a glass transition temperature near 150 °C (302 °F), consequently it softens slowly above this point and flows above about 300°C (572 °F). Tools will have to be held at higher temperatures, generally above 80 °C (176 °F) to produce strain- and almost stress free products.
Unlike many thermoplastics, polycarbonate can undergo massive deformations without breaking. As a result, it may be processed and formed without needing to be heated using sheet metal techniques, for instance forming bends on a brake. Even for sharp angle bends with a tight radius, no heating is generally necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are required, which cannot be created from sheet metal. Note that PMMA/Plexiglas, which is similar in appearance to polycarbonate, but it’s brittle and can’t be bent at room temperature.
The light weight of polycarbonate, in contrast to glass, has led to growth and development of electronic touch screens that replace glass materials with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink and many LCD screens, though CRT, plasma screen and other LCD technologies generally still require glass for its higher melting temperature and its ability to be etched in finer detail.
Other kinds of items made from Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, riot shields, instrument panels, and blender jars. Many toys and hobby goods are made from polycarbonate parts, e.g. fins, gyro mounts, and flybar locks for use with radio-controlled helicopters.
For use in applications subjected 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 perhaps the coextrusion for enhanced weathering resistance.
The Makrolon Polycarbonate is a thermoplastic that starts as a solid plastic material in the form of small pellets. In a manufacturing process called injection molding, this pellet material is heated until they begin to melt. The melted liquid polycarbonate is then rapidly pushed into molds, compressed under high pressure and cooled to create a finished product in less than a minute.