Showing posts with label Plasticologist. Show all posts
Showing posts with label Plasticologist. Show all posts

Wednesday, April 14, 2021

Bayer Makrolon Polycarbonate Sheet offer high impact strength

Bayer Makrolon Polycarbonate materials have a unique balance of helpful features which include temp resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastics.
Polycarbonate is a very long-lasting material. Even though it features considerable impact-resistance, it's got reduced scratch-resistance and so a hard coating may be applied to polycarbonate eye protection as well as polycarbonate exterior automobile equipment. The characteristics of polycarbonate tend to be similar to those of Acrylic PMMA materials, except 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 several types of glass.
Polycarbonate has a glass transition temperature of approximately 150 °C (302 °F), as a result it softens gradually 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 almost stress free products.
Unlike many thermoplastics, polycarbonate can undergo large deformations without breaking. Hence, it is sometimes processed and formed   cold using standard sheet metal techniques, such as forming bends on a brake. Even for sharp angle bends with a tight radius, no heating is usually necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are important, which should not be produced from sheet metal. Note that PMMA/Plexiglas, which happens to be similar in looks to polycarbonate, but is brittle and cannot be bent at room temperature.

The light weight of polycarbonate, as opposed to glass, has led to growth and development of electronic display screens that replace glass with polycarbonate, for use in mobile and portable devices. Such displays include newer e-ink and many LCD screens, though CRT, plasma screen and other LCD technologies generally still require glass for its higher melting temperature and its ability to be etched in finer detail.
Other kinds of items made from Polycarbonate include durable, lightweight luggage, MP3/digital audio player cases, computer cases, riot shields, instrument panels, and common style blender jars. Many toys and hobby products are made of 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 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, the pelletized resin is heated until they melt and become a very thick liquid. This liquid polycarbonate is then rapidly pushed into the mold - shaped like the part, compressed under high pressure and cooled to produce a finished product in less than a minute.

plastic sheets and sheeting

performance plastics

Wednesday, March 24, 2021

Lexan Polycarbonate Sheeting offering light weight and break resistance

Polycarbonate materials have a unique balance of beneficial features including high temperature resistance, impact resistance and optical properties position polycarbonates in between commodity plastic materials and engineering plastics.
Polycarbonate is definitely a long-lasting material. Whilst it offers significant impact-resistance, it's got minimal scratch-resistance and thus a hard coating can be applied to polycarbonate eyewear lenses and polycarbonate exterior motor vehicle components. The characteristics relating to polycarbonate are like those of polymethyl methacrylate (PMMA, acrylic), except 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 has better light transmission characteristics than several types of glass.
Polycarbonate has a glass transition temperature near 150 °C (302 °F), so it softens slowly above this point and flows above about 300°C (572 °F). Tools are required to be held at warm to high temperatures, generally above 80 °C (176 °F) for making strain- and stress-free products.
Unlike most other thermoplastics, polycarbonate can undergo dramatic shape changes without cracking. Because of this, it is sometimes processed and formed   at room temperature using standard sheet metal techniques, which include forming bends with a brake. Even for sharp angle bends having a tight radius, no heating is usually necessary. This makes it useful for prototyping applications where transparent or electrically non-conductive parts are needed, which can not be crafted from sheet metal. Please keep in mind PMMA/Plexiglas, which is similar in appearance to polycarbonate, but it's brittle and can't be bent unless it is heated.
Polycarbonate is often utilized in eye protection, and also in other projectile-resistant see through or lighting applications that would normally require the use of glass, but require higher impact-resistance. Many different types of lenses are produced from polycarbonate, including automotive headlamp lenses, lighting lenses, sunglass/eyeglass lenses, swimming and SCUBA goggles, and safety visors for use in sporting helmets/masks and police riot gear. Windscreens in small motorized vehicles are commonly fabricated from polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.


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