Sheffield Plastics Polycarbonate Flat Sheet are considered unbreakable
Polycarbonate plastic materials offer a balance of useful features this includes temp resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastics.
Polycarbonate is a very tough material. Even though it features exceptional impact-resistance, it possesses low scratch-resistance and so a hard coating is often applied to polycarbonate eyeglasses and polycarbonate exterior automobile components. The properties relating to polycarbonate tend to be similar to that of those of common Acrylic materials, although 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 of around 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 make strain- and reduced stress products.
Unlike many thermoplastics, polycarbonate can undergo large deformations without breaking or cracking. Because of that, it is sometimes processed and formed without needing to be heated using standard sheet metal techniques, for example forming bends with a brake. Even for 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 needed, which can't be crafted from sheet metal. Understand that PMMA/Plexiglas, that is certainly similar in appearance to polycarbonate, but it's brittle and cannot be bent with out a heating process.
The light weight of polycarbonate, compared with 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 several 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 produced 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 products are constructed 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 is 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 begins as a solid material in the form of small pellets. In a manufacturing process called injection molding, the pellets are 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 create a finished product , that only takes about a minute to complete.
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