Polymethyl methacrylate, referred to as PMMA, commonly known as plexiglass, also known as acrylic. It has the characteristics of hard, non-breakable, highly transparent, weather resistant, easy to dye and form, and has become a widely used transparent plastic material. Plexiglass is the finest transparent plastic with a light transmittance of >92%, light weight, and a relative density of 1.19, which is only half that of inorganic glass. The plexiglass can be thermoformed into various shapes, and can be machined by drilling, engraving and grinding, and can be bonded, painted, dyed, embossed, embossed, metal evaporated, etc. product.
However, the PMMA has a crisp texture, is easily soluble in organic solvents, has insufficient surface hardness, and is easy to be rubbed. It can be used as a transparent structural member requiring a certain strength, such as oil cups, lamp lights, instrument parts, optical lenses, decorative gifts, and the like. Adding some additives to it can improve its performance, such as heat resistance and friction resistance. The material is widely used in advertising signs, architectural glazing, lighting equipment, instrumentation, optical lenses, safety shields, household appliances, as well as aircraft cockpits, portholes and bulletproof glass.
Post time: Jun-03-2005