Lexan Polycarbonate Flat Sheet offering light weight and break resistance
Polycarbonate plastic products offer a balance of beneficial features which include temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastics and engineering materials.
Polycarbonate is definitely a durable material. Though it features higher impact-resistance, it's got a lower scratch-resistance and thus a hard coating is applied to polycarbonate eye wear as well as polycarbonate exterior automobile components. The properties of polycarbonate tend to be similar to that of those of Acrylic PMMA materials, but polycarbonate is going to be 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 near 150 °C (302 °F), consequently 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 reduced stress products.
Unlike almost all other thermoplastics, polycarbonate can undergo large changes in basic shape without cracking or breaking. As a result, it may be processed and formed at room temperature using sheet metal techniques, for example forming bends with a brake. Even for sharp angle bends having a tight radius, no heating is usually necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are necessary, which cannot be crafted from sheet metal. Understand that PMMA/Plexiglas, which happens to be similar in appearance to polycarbonate, but it's brittle and can't be bent with out a heating process.
The light weight of polycarbonate, compared to glass, has led to advancement of electronic view 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 the ability to be etched in finer detail.
Other miscellaneous items made out of 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 of 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 is needed. This can be a coating (e.g. for improved abrasion resistance), or a 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, the pelletized resin is heated until they begin to melt. The melted liquid polycarbonate is then rapidly pushed into the mold - shaped like the part, compressed under high pressure and cooled to produce a finished product in less than a minute.
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