The Different Between Acrylic PMMA and PC and PVC
Acrylic and PC are thermoplastic engineering grade plastics, according to various performance characteristics, Acrylic is more used in advertising display and art work gifts, PC is more used in industrial manufacturing and outdoor decoration.
Acrylic is lower than PC in hardness. Acrylic surface is easy to scratch, so NOT tear the surface protective film in the process of acrylic producing, and prevent surface scratches left unsightly marks in the packaging process .PC hardness is high, generally nails, wood will not scratch, wear resistance is excellent.
Acrylic has better transmittance than PC. Acrylic transmittance rate as high as 93.7%, as high transmittance as glass, so called plexiglass, especially optical grade and optical diffusion grade acrylic, with very high transmittance, suitable for manufacturing optical lenses and industrial lenses. The transmittance of PC is only about 87%, which can only be applied to outdoor roof top light shield and outdoor advertising light box.
Acrylic is easier to process than PC. Acrylic low hardness, easy molding, cutting, carving, can gongs, milling and drilling, cars, trimming, chamfering, polishing, bending for woodworking machinery processing. PC processing is difficult, and the surface effect is not good, the brightness is not enough, easy to crack edge collapse.
PC is more resistant high temperature than acrylic. PC is 135 degrees, and acrylic starts to soften at 85 degrees only.
PC is better than acrylic in stamping resistance, tensile strength, low temperature resistance, acid and alkali corrosion resistance, dimensional stability, material stability. Hardened acrylic, which takes into account the high transparency of PMMA and PC hardness, is usually used in aircraft windshield, automotive doors and windows, electrical panel, equipment cover and other fields.
PVC: (Polyvinyl Chloride)PVC is the second capacity plastics, and it is also the most widely used plastics. PVC itself is colorless and transparent hard material, but more brittle than PC, transparency is also inferior to PC, other mechanical properties are also very different from PC. But PVC can join many plasticizers, and can be made into soft PVC after adding.