Sheffield Plastics Polycarbonate Sheeting are clear and tough
Makrolon Polycarbonate products give you a great blend of helpful features including temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering plastics.
Polycarbonate is a very high quality material. Whilst it has tremendous impact-resistance, it possesses low scratch-resistance and thus a hard coating could be applied to polycarbonate eye protection and polycarbonate exterior automotive equipment. The characteristics associated with polycarbonate are along the lines of those of Acrylic PMMA materials, except 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 has better light transmission characteristics than many different types of glass.
Polycarbonate carries a glass transition temperature near 150 °C (302 °F), as a result it softens slowly above this point and flows above about 300°C (572 °F). Tools need to be held at warm to high temperatures, generally above 80 °C (176 °F) to help make strain- and stress-free products.
Unlike almost all other thermoplastics, polycarbonate can undergo dramatic deformations without cracking. Therefore, it could be processed and formed without needing to be heated using standard sheet metal techniques, for instance 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 required, which cannot be made from sheet metal. Understand that PMMA/Plexiglas, which happens to be similar in appearance to polycarbonate, but is brittle and can't be bent without heating.
The light weight of polycarbonate, compared with glass, has led to development of electronic view screens that replace glass 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 the ability to be etched in finer detail.
Other miscellaneous items made from Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, police riot shields, instrument panels, and common style blender jars. Many toys and hobby goods are manufactured from 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 may be a coating (e.g. for improved abrasion resistance), or as 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, these small pellets are heated until they begin to melt. This liquid polycarbonate is then rapidly pushed into molds, compressed under high pressure and cooled to create a finished product , all in just a minute or so.
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