Mitsubishi acrylic rods use acrylic products are acrylic sheet, acrylic plastic pellets, acrylic light boxes, signs, acrylic bathtub, acrylic artificial marble, acrylic resin, acrylic (latex) paint, etc. products, variety. Common people to acrylic products are made from acrylic pellets, sheets or resin and other raw materials through a variety of processing methods, and with a variety of different materials and functions of the parts to be assembled from acrylic products. As general often hear acrylic fiber, acrylic cotton, acrylic yarn, acrylic nylon and other means by the polymerization of acrylic acid from the man-made fibers, not associated with acrylic products. Which is commonly known as acrylic plate of poly (methyl methacrylate) Polymeric Methyl Methacrylate (PMMA) sheet, which is made by a "methyl methacrylate monomer Methyl Methacrylate (MMA)" polymerization. Acrylic or pellets by extrusion machine made by extrusion plate. Previously known as plexiglass plate. Plexiglass from English Organic Glass, PMMA plate means made of organic compounds from MMA, its transparency and light transmission as glass in general. Because all made of transparent plastic, such as PS, PC, etc., or plates made from recycled MMA are collectively referred to as the poor quality of the plexiglass. For the sake of segmentation purposes, PMMA plate special will be of high quality material of pure MMA made of acrylic panels will be to call it, and in general to the plexiglass plate segment. PMMA (acrylic) sheet of many types of acrylic sheet specifications species. Ordinary board are: transparent panels, stained transparent board, white board, color plates; special board are: sanitary board, cloud panels, mirror panels, cloth panels, hollow plate, impact plates, fire-retardant board, super wear plates, checkered surface, matte board, pearl panels, metallic panels. Different performance, different color and visual effects to meet changing requirements. 1, acrylic casting plate divided by the production process and extrusion plates can be divided according to the transmittance of transparent panels, translucent panels (including dyeing plate transparent plate), Swatch (including black and white and color plates); according to the performance of the anti-sub impact plate, UV board, general board and special board such as high impact board, fire board, matte board, metallic plates, high wear-resistant plate, light guide, etc. A: casting plate: high molecular weight, excellent stiffness, strength and excellent chemical resistance. And thus more suitable for processing large logo plaque, relatively longer time in the softening process. This feature is a small batch processing sheet has unmatched flexibility in color and surface texture effect of the system, and complete product specifications, useful in a variety of special applications. B: the pressing plate: Compared with casting plate, pressing plate lower molecular weight, mechanical properties weaker, relatively high flexibility. However, this feature is conducive to bending and heat molding, softening time is shorter. In dealing with the larger size of the plate, is conducive to a variety of rapid vacuum forming. Meanwhile, the pressing plate thickness tolerances smaller than the cast slab. Because of the pressure plate is a high volume automated production, color and size inconvenience conditioning, so the diversity of product specifications are subject to certain restrictions. 2, there is a call back to the acrylic material is recycled acrylic regeneration board scrap, after thermal degradation regenerated MMA (methyl methacrylate) monomer, followed by the chemical reaction of polymerization and then come. After a rigorous process, you can retrieve the pure MMA monomer, and newly synthesized monomer, there is no difference in quality. However, the degradation produced monomer purity is not high, after the sheet metal forming, its quality, poor performance. Summary: When pressed particle board uses raw materials, high temperature and dissolved after extrusion molding, and casting board with MMA monomer (liquid) directly cast molding, extrusion, although the board is more flat and smooth appearance, but because of the particulate material forming to complete the polymerization. When processed into sheet metal structure, performance is weak, is not suitable as a material for outdoor identify the product is only suitable for indoor products crystal word or products such as stents. In addition, as the majority of non-extruded UV board function, life casting plate with its outdoor use is quite different, the color will gradually fade and easy to embrittlement, until rupture. Casting plate is done in sheet structure polymerization process, during which added UV absorbers, with high strength and UV capabilities, outdoor life of up to 5 years or even 10 years, during the use of color always bright as new. 1 process characteristics, polymethyl methacrylate containing a polar side group, has obvious hygroscopic, water absorption of 0.3% -0.4% in general, must be dried prior to molding, drying condition is 80 ℃ -85 ℃ dried 4 -5h. 2, polymethyl methacrylate having effective obvious non-Newtonian fluid characteristics in a molding processing temperature range, the melt viscosity increases with the shear rate will be significantly decreased, the melt viscosity is also very sensitive to temperature. Thus, for polymethyl methacrylate molding process, the molding pressure and temperature can increase significantly lower melt viscosity, to achieve better flowability. 3, PMMA begins to flow temperature of about 160 ℃, the decomposition start temperature of higher than 270 ℃, has a wide working temperature range. 4, Poly methyl methacrylate higher melt viscosity, cooling rate and faster products prone to stress, so the control process conditions demanding during molding, after molding products also require post-treatment. 5, polymethyl methacrylate is an amorphous polymer, the shrinkage and range are small, typically from about 0.5% to 0.8%, in favor of a higher dimensional accuracy of the molded plastic parts. 6, polymethyl methacrylate cutting performance is very good, its profile can be easily machined to dimensions of the various requirements. Processing of poly (methyl methacrylate) can be used casting, injection molding, extrusion, thermoforming and other processes. Casting molding casting molding for molding plexiglass sheets, rods and other profiles that use bulk polymerization method molding profiles. After casting the molded articles need to be processed, the processing conditions after 2h incubation at 60 ℃, at 120 ℃ incubated 2h.