PBT3. Low water absorption 4. Excellent electrical properties 5. Good size stability 6. The drug resistance and oil resistance are excellent The shortcoming is 1, Tg (30 C) is low, and the H.D.T. is 60 C under the load. 2. The anti impact strength is bad, and the glass fiber reinforcement is generally used as FR-PBT. Use electronic appliances: no fuse wire, electromagnetic switch, reversion transformer, household appliance handle, connector, shell Car: door handle, bumper, split cover, fender, wire shield, wheel cover Industrial parts: OA fan, keyboard, fishing reel, parts, lamp The chemical and physical properties of PBT polybutylene terephthalate PBT is one of the most tough engineering thermoplastic materials. It is a semi crystalline material with excellent chemical stability, mechanical strength, electrical insulation and thermal stability. These materials have good stability under a wide range of environmental conditions. PC/ABS The new generation of hydrolytic stability PC/ABS material has good water resistance and thermal stability, and can even be recycled. When adding less than 25% recycled material, the multiaxial impact property of the material only decreased by 11%, and the ductile fracture fully showed the superior performance of the new generation of PC/ABS. At the same time, the series of materials have also been evaluated by the mass laboratory, and the impact strength of the notch is only 8.5% after 600H at 80%RH, 90 C and high temperature and high humidity. At present, the material has been applied in the mass Chrysler Lingyu, 300C, Buick and other models. Ultra low gloss PC/ABS Automotive interior materials generally have a matte, it helps to reduce the visual fatigue of the driver, thereby improving the driving safety. PC/ABS's comprehensive performance is good, but because of its high surface gloss, and spray matte paint two matte and processing to achieve the aesthetic effect. With the introduction of the automobile ELV regulations, it is necessary to avoid spraying environmental protection solutions to achieve direct recovery of products. The spray - free solution can not only reduce the cost significantly, but also reduce the environmental pollution caused by the spray painting process. PEI PEI plastic material (polyether imide) The United States GE:1000; 1000F; 1000P; 1000R; 1010; 1010F; 1000R; 1100; 1100F; 1100R; 1110F:8015; D9065; 1110; 9075; 9076; ATX100; ATX100F; ATX100R; ATX200; ATX200F; ATX200R 2) Polyplastics / Japan: 1140A6 K531A16165A4 PEI light GE 1100F-2187 PEI GE 1010-7101 PEI GE 2100 PEI GE 2200 PEI GE 2300 U.S. PEI GE 1000-1000 PEI GE 1000-7101 PEI GE 1010-1000 PEI GE 2210R-111/7301 America PEI GE 2300R-111/7301 PEI GE 2310R-111/7301 America PEI GE ATX200F in the United States online encyclopedia plastic plastic Material performance table The injection not enhanced standard 10001000F, 1000P, 1000R The flowability of 10101010F, 1000R Please add pigment resin 11001100F, 1100R, 11101110F LTX300A medium heat resistance 1285, LTX300B plastic, plastic online encyclopedia The reinforced glass fiber reinforced 21002100N, 2100R, 21102110N, 2110R, 22002200R, 22102210R, 23002300N, 2300R, 23102310R, 240024102410R The grinding of glass fiber reinforced plastic plastic 22122212R, 23122313 in the online encyclopedia The mineral / glass fiber reinforced 34513452 The carbon fiber reinforced plastic plastic 72017801 online encyclopedia The wear resistance is not enhanced 4001 enhanced 40004211 The impact of changes in HTX1010F, HTX1050F, HTX2000F, HTX2001F The chemical resistance of non enhanced CRS5001, CRS5011, CRS5011F, CRS5011R The enhanced CRS5111, CRS5112, CRS5711, CRS5201, CRS5201R, CRS5211, CRS5211R, CRS5301, CRS5311 plastic plastic online encyclopedia The air is not enhanced 90759076 resin enhanced AR9100, AR9200, AR9300 The mixed level PEI/PCE hybrid ATX100, ATX100F, ATX100R, ATX200, ATX200F, ATX200R The PEI/PPO hybrid MD133 The extruded resin 8015 D9065 in air. PMMA PMMA It is 80-90 C, 2~4 hours. Melting temperature: 240~270 C. Mold temperature: 35~70 C. Injection speed: medium The chemical and physical properties of PMMA with optical properties and weatherability good. The penetration of white light is as high as 92%. PMMA products have very low birefringence, especially suitable for making DVDs and so on. PMMA has the properties of room temperature creep. With the increase of load and time, the phenomenon of stress cracking can be caused. Because of the low hardness of the PMMA surface, easy to wipe hair, low impact resistance, and poor flow performance, the modification of PMMA has appeared one after another. For example, the copolymerization of methyl methacrylate with styrene and butadiene, the blending of PMMA and PC, etc. Super transparent PMMA material is mainly used for mobile phone protection screen, the product is divided into a hardened coating, no hardening coating two. Its characteristics are excellent light transmittance, no impurities, electrostatic protective film, surface hardening, hardness can reach more than 5-6H thick. Especially recommended for PMMA material hardening, known as the domestic plate. performance Chemical properties Methyl methacrylate monomer is methyl methacrylate, a colorless liquid with a fragrance, boiling point at 101 C, and the density of 0.940 g / cm 3 (25 C). The industry is using acetone cyanohydrin method?or?by catalytic oxidation of isobutene from methacrylic acid, and then esterification. It is easy to polymerized, and it needs to be stored below 5 C?or?by adding about 0.01% of the hydroquinone inhibitor. It is distilled before use, and the inhibitor is separated. Polymethyl methacrylate can be dissolved in its own monomers, chloroform, acetic acid, ethyl acetate, acetone and other organic solvents. Because it can dissolve in its own monomer, its bulk polymer is very transparent (see bulk polymerization). Characteristic The new type polyester material, the hot music molding?or?plane edge, metal tuode built-in light source, highly visual impact. Weatherability: panel coated high concentrations of UV absorber, metal base spraying import car paint