Makrolon Polycarbonate materials offer a balance of helpful features this includes high temperature resistance, impact resistance and optical properties position polycarbonates between commodity plastics and engineering plastics.
Polycarbonate is definitely a tough material. Although it offers increased impact-resistance, it has got a lower scratch-resistance and thus a hard coating could be applied to polycarbonate eyewear lenses as well as polycarbonate exterior automobile components. The properties relating to polycarbonate tend to be similar to that of those of Acrylic PMMA materials, yet , polycarbonate is actually 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 near 150 °C (302 °F), in order that it softens gradually above this point and flows above about 300°C (572 °F). Tools will have to be held at higher temperatures, generally above 80 °C (176 °F) to make strain- and almost stress free products.
Unlike most other thermoplastics, polycarbonate can undergo massive deformations without cracking. As a result, it may be processed and formed at room temperature using standard sheet metal techniques, such as forming bends on a brake. Even for 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 produced from sheet metal. Understand that PMMA/Plexiglas, that is similar in appearance to polycarbonate, but is brittle and cannot be bent unless it is heated.
Polycarbonate is often found in eye protection, along with other projectile-resistant see through applications that would normally be thought of as requiring the use of glass, but require much higher impact-resistance. Many different types of lenses are made of 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 normally made of polycarbonate, such as for motorcycles, ATVs, golf carts, and small planes and helicopters.
local engineering plastic materials
No comments:
Post a Comment