Plexiglass acrylic (acrylic) brief history as early as the 1920s, Rohmenhausen first invented the polymerization of MMA into acrylic sheet method, this sheet was later called "Oroglas/Plexiglas". However, the company failed to find a more economical production of MMA process route, and thus acrylic sheet was not popularized at that time.
In 1931, ICI scientists invented the production of MMA acetone cyanohydrin method, which greatly reduced the cost of MMA, so that the acrylic sheet can be popularized. At the same time, ICI also successfully developed the acrylic sheet for use in the cockpit canopy of fighter jets and other fields, and then ICI built the world's largest acrylic sheet factory in the United Kingdom.
Acrylic and plexiglass
"Plexiglass" from the trade name "Oroglas", meaning "Organic Glass "(i.e., plexiglass). As mentioned earlier, "Oroglas" is a PMMA sheet, that is, acrylic sheet. Within some people think that transparent plastic sheet is Plexiglas, to avoid confusion and error, most of the PMMA sheet is now called acrylic sheet, and a variety of PMMA materials categorically known as acrylic or acrylic.
Plexiglass acrylic sheet (acrylic sheet) species
Plexiglass acrylic sheet (acrylic sheet) according to the polymerization of the work is divided into cast sheet (Cast Sheet) and extruded sheet (Extruded Sheet), in which the casting of the plate has a higher molecular weight, more rigidity, more crack-resistant, and therefore is more suitable for the processing of large-size signage. In addition, cast sheets are more suitable for producing small quantities of different colors. Extruded sheet has lower molecular weight and higher flexibility, which is suitable for vacuum molding. Extruders can better control the thickness of the plate, and are more suitable for producing large quantities of single-color plates.
Plexiglass acrylic sheet can be divided into pure transparent plate, color transparent plate, semi-transparent plate (such as opal plate) and opaque plate (such as color plate); according to the surface luster, can be divided into high-gloss plate, mercerized plate and matte plate (also known as frosted plate); in accordance with the characteristics of the acrylic plate can be divided into ordinary plate, anti-?1?7} plate, UV-resistant plate, flame retardant plate, as well as high wear-resistant plate and so on.