Sheffield Plastics Polycarbonate Sheets offering light weight and break resistance
Polycarbonate products offer a balance of beneficial features this includes high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastics and engineering plastics.
Polycarbonate is definitely a sturdy material. Whilst it has exceptional impact-resistance, it has got lower scratch-resistance and so a hard coating could be applied to polycarbonate eyeglasses lenses and polycarbonate exterior automobile equipment. The characteristics associated with polycarbonate are generally along the lines of those of common Acrylic materials, although 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 many kinds of glass.
Polycarbonate carries a glass transition temperature of approximately 150 °C (302 °F), as a result 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 help make strain- and stress-free products.
Unlike many thermoplastics, polycarbonate can undergo dramatic deformations without cracking. Subsequently, it is sometimes processed and formed cold using standard sheet metal techniques, for example forming bends on a brake. For even sharp angle bends with a tight radius, no heating is usually necessary. This makes it attractive prototyping applications where transparent or electrically non-conductive parts are required, which can not be produced from sheet metal. Please keep in mind PMMA/Plexiglas, that is similar in appearance to polycarbonate, but it is brittle and cannot be bent with out a heating process.
The light weight of polycarbonate, compared to glass, has led to continuing 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 a few 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 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 items are manufactured 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 maybe needed. This 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, these small pellets are heated until they melt in to a thick liquid. The melted liquid polycarbonate is then rapidly pushed into a mold with the empty part being the size and shape of the part you want, compressed under high pressure and cooled to create a finished product , all in just a minute or so.
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