What is acrylic? Is it plastic? What's the difference between good and bad?
If plastic is difficult to judge from its appearance, it can only be found in the process of injection or manufacture.Finished products, generally from the appearance (such as transparent test) and their own hand test, hardness, toughness and so on, you can have a certain resolution.
In fact, PMMA, also known as plexiglass. Injection molding industry, commonly known as sub afterburner, rarely use the name acrylic. These actually refer to the same thing.This is a kind of plastic. The chemical name is polymethyl methacrylate. It is a kind of important thermoplastic plastics which have been developed earlier.
Organic glass1 see material around four if skin side, not the rower2 the surface of paper produced by the recent general lossless breaking new plate paper is stuck.3 transparency and color brilliance. In the corner point and then molded materials open to the light or light, obviouslyIn the 4 corner point material torn paper, poor material surface will appear water and ice things, at a glance5 tolerance of material thickness. The naked eye can not see, it is best to use calipers, cards. (good material tolerance at pay 0.2MM)Almost the board is paying 0.8MM or so, hand touch can reflect the thickness tolerance.
