plexiglass acrylic (acrylic) is the transliteration of the English Acrylic, and is the general name for acrylic and methacrylic chemicals. The acrylic board people often say is polymethacrylic methyl ester (PMMA) ) board, which is polymerized from methyl methacrylate monomer (MMA).
A brief history of plexiglass acrylic (acrylic) As early as the 1920s, Rohm and Haxin Company first invented the method of polymerizing MMA into acrylic sheets. This sheet was later called "Oroglas/Plexiglas". However, this company failed to find a more economical process route for producing MMA, so acrylic sheets were not widely used at that time.
In 1931, scientists from ICI Company invented the acetone cyanohydrin method for producing MMA. This method greatly reduced the cost of MMA and made acrylic sheets popular. At the same time, ICI also successfully developed acrylic panels for use in fighter cockpit canopies and other fields. Subsequently, ICI built the world's largest acrylic panel factory in the UK.
Acrylic and organic glass
"Organic glass" comes from the trade name "Oroglas", which means "Organic Glass". As mentioned before, "Oroglas" is a PMMA board, that is, an acrylic board. Some people think that transparent plastic plates are plexiglass. To avoid confusion and misunderstanding, most PMMA plates are now called acrylic plates, and various PMMA materials are generally called acrylic or acrylic.
Types of organic glass acrylic sheets (acrylic sheets)
Acrylic sheets (acrylic sheets) are divided into cast sheets (Cast Sheet) and extruded sheets (Extruded) according to the polymerization process. Sheet), among which the cast plate has a higher molecular weight, is more rigid, and more resistant to cracking, so it is more suitable for processing large-size signs. In addition, casters are better suited to producing small batches of panels in different colors. The extruded board has a low molecular weight and high flexibility, making it suitable for vacuum molding. The extrusion process can better control the thickness of the board and is more convenient for producing large quantities of single-color boards.
According to the transmittance, plexiglass acrylic boards can be divided into pure transparent boards, colored transparent boards, translucent boards (such as milky white boards) and opaque boards (such as colored boards); according to surface gloss, It can be divided into high-gloss board, mercerized board and matte board (also called frosted board); according to its characteristics, acrylic board can also be divided into ordinary board, anti-?} board, anti-UV board, flame-retardant board and high wear-resistant board, etc. .
Acrylic is the best new material for manufacturing sanitary ware after ceramics. As a special type of organic glass, acrylic can also be used in aircraft windshields and can be used in harsh environments for decades.
Compared with traditional ceramic materials, in addition to unparalleled high brightness, acrylic also has the following advantages: good toughness, not easy to break; strong repairability, just use soft foam dipped in toothpaste to wipe the sanitary ware New; soft texture, no cold and biting feeling in winter; bright colors, can meet the individual pursuit of different tastes. Using acrylic to make basins, bathtubs, and toilets is not only exquisite in style and durable, but also environmentally friendly. Its radiation is almost the same as the radiation of the human body's own bones. Acrylic sanitary ware first appeared in the United States and now accounts for more than 70% of the entire international market. In my country, Sichuan Dongfang Sanitary Ware Factory took the lead in introducing this technology from abroad and applied for a registered patent domestically. Now, domestic acrylic sanitary ware brands such as "Emperor" and "Jazz" are also favored by more and more consumers.
Due to the difficulty and high cost of acrylic production, there are many low-quality and low-cost substitutes on the market. These substitutes are also called "acrylic", but they are actually ordinary organic boards or composite boards (also known as sandwich boards). Ordinary organic boards are cast with ordinary organic glass cracking materials and pigments. The surface hardness is low, easy to fade, and the polishing effect is poor after grinding with fine sand. The composite board only has a thin layer of acrylic on the surface and ABS plastic in the middle. It is prone to delamination due to thermal expansion and contraction during use. True and false acrylic can be identified from the subtle color difference and polishing effect of the plate cross section.
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