Sheffield Plastics Polycarbonate Sheeting are considered unbreakable
Polycarbonate products offer a great blend of helpful features including temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering materials.
Polycarbonate is a very high quality material. Whilst it features higher impact-resistance, it has got lower scratch-resistance and so a hard coating typically is applied to polycarbonate eye wear as well as polycarbonate exterior automotive components. The properties associated with polycarbonate tend to be along the lines of those of common Acrylic materials, yet , polycarbonate is definitely 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 most grades of glass.
Polycarbonate carries a glass transition temperature of about 150 °C (302 °F), in order that it softens slowly above this point and flows above about 300°C (572 °F). Tools need to be held at higher temperatures, generally above 80 °C (176 °F) to produce strain- and almost stress free products.
Unlike most other thermoplastics, polycarbonate can undergo dramatic deformations without breaking. Hence, it can be processed and formed cold using sheet metal techniques, which include forming bends with a brake. Even for sharp angle bends having a tight radius, no heating is generally necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are crucial, which cannot be made from sheet metal. Remember that PMMA/Plexiglas, which happens to be similar in appearance to polycarbonate, but it is brittle and cannot be bent with out a heating process.
The light weight of polycarbonate, as opposed to glass, has led to growth and development of electronic touch screens that replace the traditional glass with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink as well as LCD screens, though CRT, plasma screen and other LCD technologies which still do 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, 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 maybe needed. This either can be a coating (e.g. for improved abrasion resistance), or a coextrusion for enhanced weathering resistance.
Bayer Makrolon Polycarbonate is a thermoplastic that at the beginning, starts as a solid material in the form of small pellets. In a manufacturing process called injection molding, these small pellets are heated until they melt and become a very thick liquid. The liquid polycarbonate is then rapidly injected into a mold, compressed under high pressure and cooled to form a finished product in a matter of minutes.
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