Sheffield Plastics Polycarbonate Flat Sheet are clear and tough
Makrolon Polycarbonate materials offer a great blend of useful features including temp resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering materials.
Polycarbonate is definitely a long-lasting material. Although it offers increased impact-resistance, it possesses low scratch-resistance and so a hard coating can be applied to polycarbonate eyewear as well as polycarbonate exterior auto equipment. The characteristics associated with polycarbonate are generally comparable to those of Acrylic PMMA materials, yet , polycarbonate definitely is 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 different types of glass.
Polycarbonate carries a glass transition temperature of about 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) in order to make strain- and stress-free products.
Unlike almost all other thermoplastics, polycarbonate can undergo dramatic deformations without cracking or breaking. For this reason, it could be processed and formed cold using standard sheet metal techniques, for instance forming bends with a brake. For even sharp angle bends having a tight radius, no heating is generally necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are important, which can't be made from sheet metal. Note that PMMA/Plexiglas, that is similar in looks to polycarbonate, but it is brittle and can't be bent with out a heating process.
The light weight of polycarbonate, compared with glass, has led to continuing development of electronic view screens that replace glass 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 types of 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 items 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 is needed. This either can be a coating (e.g. for improved abrasion resistance), or perhaps the coextrusion for enhanced weathering resistance.
Bayer Makrolon Polycarbonate is a thermoplastic that begins as a solid material in the form of small pellets. In a manufacturing process called injection molding, this pellet material is heated until they melt. The liquid polycarbonate is then rapidly injected into a mold, compressed under high pressure and cooled to produce a finished product , that only takes about a minute to complete.
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