Covestro Makrolon Polycarbonate Sheeting offer high impact strength
Bayer Makrolon Polycarbonate products offer a great blend of beneficial features which include temp resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastics.
Polycarbonate is a very durable material. Whilst it features greater impact-resistance, it has reduced scratch-resistance and so a hard coating can be applied to polycarbonate eye wear and polycarbonate exterior auto equipment. The properties associated with polycarbonate tend to be similar to those of Acrylic PMMA 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 different types of glass.
Polycarbonate carries a glass transition temperature of approximately 150 °C (302 °F), so it softens gradually above this point and flows above about 300°C (572 °F). Tools ought to be held at higher temperatures, generally above 80 °C (176 °F) to produce strain- and reduced stress products.
Unlike most other thermoplastics, polycarbonate can undergo massive changes in basic shape without breaking or cracking. For this reason, it could be processed and formed at room temperature using sheet metal techniques, for example forming bends with a brake. Even for sharp angle bends with a tight radius, no heating is generally necessary. This makes it attractive prototyping applications where transparent or electrically non-conductive parts are necessary, which cannot be crafted from sheet metal. Understand that PMMA/Plexiglas, which is similar in appearance to polycarbonate, but is brittle and can't be bent at room temperature.
The light weight of polycarbonate, compared to glass, has led to continuing development of electronic touch 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 still generally require glass for its higher melting temperature and the ability to be etched in finer detail.
Other kinds of items produced from 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 products are constructed 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 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, the pellets are heated until they melt. The liquid polycarbonate is then rapidly pushed into the mold - shaped like the part, compressed under high pressure and cooled to create a finished product in less than a minute.
Comments
Post a Comment