Polycarbonate materials give you a balance of helpful features this includes high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering plastics.
Polycarbonate is a very durable material. Though it features very high impact-resistance, it has reduced scratch-resistance and thus a hard coating can be applied to polycarbonate eye protection lenses as well as polycarbonate exterior automobile components. The characteristics associated with polycarbonate are generally along the lines of those of common Acrylic materials, although polycarbonate is undoubtedly 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 several types of glass.
Polycarbonate carries a glass transition temperature of about 150 °C (302 °F), consequently it softens slowly above this point and flows above about 300°C (572 °F). Tools need to be held at high temperatures, generally above 80 °C (176 °F) to help with making strain- and almost stress free products.
Unlike most thermoplastics, polycarbonate can undergo large deformations without cracking or breaking. Subsequently, it can be processed and formed at room temperature using standard sheet metal techniques, which include forming bends with a brake. Even for sharp angle bends with a tight radius, no heating is usually necessary. This makes it valuable in prototyping applications where transparent or electrically non-conductive parts are important, 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 at room temperature.
The light weight of polycarbonate, compared with glass, has led to development of electronic view screens that replace glass materials with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink and some LCD screens, though CRT, plasma screen and other LCD technologies still generally require glass for its higher melting temperature and its ability to be etched with finer detail.
Other kinds of items made out of Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, riot shields, instrument panels, and blender jars. Many toys and hobby items are produced 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 may be a coating (e.g. for improved abrasion resistance), or perhaps the coextrusion for enhanced weathering resistance.
The Makrolon Polycarbonate is a thermoplastic that starts as a solid material in the form of small pellets. In a manufacturing process called injection molding, this pellet material is heated until they begin to melt. The liquid polycarbonate is then rapidly injected into a mold, compressed under high pressure and cooled to produce a finished product , all in just a minute or so.
Sunday, November 28, 2021
Bayer Makrolon Polycarbonate Sheets are clear and tough
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