TPEE WX05502 玩具 →，PC/ABS 7710 PA66 RA301G6 TPE ALR2060 BK PC LUX9612 、→，PC DL001 、→，EVA 1903 PP HA840R EVA CA-2211A 、‖。TPE TF9AAA 、‖。PBT SK645 、‖。PC/ABS C2100HF 、‖。PC/ABS FR3110TV PP J642 、‖。PP 4620WZ 、→，PC/ABS NH-1000TS 、‖。PP RE718CF 、‖。PC EGN2050DF 、→，PP EP600V 、‖。PC 3025IR HDPE MR80U 、→，PP HP401R 、‖。TPEE BT-1063D PC FL920 、→，PP J1400 EPDM 4021 、‖。PBT C 1202 、→，PBT KP213G20BL PA66 CM3006G-30 LDPE 10803-020 、‖。PA66 RFL-4548HS 、‖。PBT 9114 PP MFX-1008MG 、‖。LCP HM-402-NC PC/ABS DPFR3006 EVA E188 、→，LLDPE 663-2BA 、→，TPE HX-093AN 、‖。PP S600 ABS QE1455/L2 、→，EVA VS440 、→，PC/ABS NH-1015 PC SF810 、→，XLPE LE4201S 、‖。PP HP565K PC DMX1214 、→，EPDM KEP-1030EF 、‖。PP JM-370K TPE G7723X TPU 58215 、‖。LCP 3405-3 TFE 15 HDPE H5520 、→，POM FC2020H 、→，PC/ABS EMI2583 、‖。TPE 8200 、‖。TPEE 1172MLF ABS D-18FG-Y032 、‖。PBT B2520 、→，MAH TY1054H PA66 A 30 GB PMMA LG2 、→，PP SB891 HDPE LH-418 PPS XK2340 、→，PC GN1006FM ABS 755A 、→，PCT 1260 PC RC1700 、‖。TPV 8211-55 、→，SEPS G1726 、→，LLDPE 2027G 、→，CAB 500-5 PP 1304E3 、→，PP HP456H TPU 8785A PP GWH52A2 、→，EVA VA800 、→，PP XM2U38 、→，PP T00G-00 POM 7054 、‖。TPE G7930-1001-00 、→，EBA SA2809 PA1010 RS LC1201 PP HP400M PA6 F5300 PC KG-10MRA POM 510GR 、→，TPU 165K 、‖。EPDM 4785HM PC 943 805234 ABS HR-G 、‖。PC 6555 、→，EPDM 961SP EVA 182 、→，LDPE 722F 、‖。LCP E480I 、‖。PA66 RX04515H 、‖。 CA-1421A 、‖。PP J-550A 、→，PP GE277AI 、→，LLDPE FS253S 、‖。PC 3017PJ 、‖。PC 7104-8 ABS CGR30F TPEE EM550 、→，SMA 23110 POM DE-20279 、→，EVA 408 LCP E6810GHF M、‖。POM SC690 、‖。PBT SK615SF EVA MP34 、‖。PC/ABS GN5001RFG 、 TPEE WX05502 玩具 PET plastics are the abbreviations of English Polyethylene terephthalate, referred to as PET?or?PETP. Polyterephthalic acid, mainly including Polyterephthalate two ester PET and polybutylene terephthalate PBT. Polybutylene terephthalate is also commonly known as polyester resin. It is a polycondensation of terephthalic acid and ethylene glycol. Together with PBT, it is called a thermoplastic polyester,?or?a saturated polyester. structure History of development In 1941, John Rex Whinfield filed with James Tennant Dickson and their employees in Manchester Calico Printers'Association to apply for patents on PET materials. In 1946, Britain issued the first patent for the preparation of PET. In 1946, the British ICI company completed the pilot test, but after the purchase of patents by the US DuPont Co, the production device was established in 1953, and it was the first industrialized production in the world. The initial PET was mostly used in China commonly known as synthetic fiber, polyester, dacron. Since 80s, PET has made breakthroughs in engineering plastics, and has developed nucleating agents and crystallization promoters. PET and PBT together as thermoplastic polyester become one of the five major engineering plastics. The production scale of PET in our country is far behind the major manufacturers in foreign countries. In 80s, China gradually introduced tens of tens of thousands of tons of advanced PET resin synthesis equipment from abroad, and the quality and production have made great progress. According to the statistics of China Textile society, in 1997, China produced 1 million 740 thousand tons of PET chip resin, and the production capacity of high viscosity packaging chip resin was 224 thousand tons, so the source of PET engineering plastics grade resin is abundant. As the device for mixing and modifying PET plastics and other polymer blending and modifying devices is universal, the manufacture of domestic mixed extruders and so on has also formed a certain scale. So once the market is opened up, the production of domestic PET plastics will also increase rapidly. the way to distinguish There is a more practical and better way to buy an oven to heat it up to 250 degrees, and bake for half an hour there. If the product contains PVC, there will be a lot of yellow spots on the surface. If the melting point is not enough, it will melt quickly. In fact, there are many kinds of PET to do, such as PET smashed film, slurry block and film length less than 30 cm, which have different customer groups. The identification of these goods is strongly required to be tested in the oven. In particular, PET drum is a very scarce source of goods in the whole market. Generally, the length is between 80 and 120 centimeters, and the thickness of 3-5 film is very high (white and transparent). Production process Polymethyl methacrylate, the polymer obtained by polymerization of acrylic acid and its esters is collectively referred to as acrylic ester, and the corresponding plastics are collectively referred to as polyacrylic acid plastics, of which polymethyl methacrylate is the most widely used. The polymethyl methacrylate abbreviation code is PMMA, commonly known as plexiglass, so far, it is the best material and the price is relatively suitable for synthetic transparent materials. Applications: PMMA dissolved in organic solvents, such as phenol, anisole, etc., can be formed by spin coating, and has good dielectric properties. It can be used as a dielectric layer of organic field transistor (OFET), also known as organic thin film transistor (OTFT). PMMA resin is non-toxic and environmentally friendly materials, can be used in the production of tableware, sanitary ware, and so on, with good chemical stability, and weather resistance. PMMA resin is not easy to produce sharp fragments when it is broken. In the United States, Japan and other countries and regions, it has made mandatory provisions in the law. Primary and secondary schools and kindergartens must use PMMA resin for building glass. All over the country accelerated the pace of urban construction, street signs, advertising lights and telephone kiosks and so on. A large part of the materials used were PMMA resin. The outdoor color building materials of the Beijing Olympic project also use a lot of green PMMA resin. R20/22 Harmful by inhalation and if swallowed. Inhalation and swallowing are harmful. Application scope Automotive industry (signal equipment, dashboard, etc.), pharmaceutical industry (blood storage container, etc.), industrial applications (video disc, light diffuser), electronic products buttons (especially transparent). Consumer goods for daily use (beverage cup, stationery, etc.). PMMA dissolved in organic solvents, such as acetone, chloroform, dichloromethane, phenol, anisole and so on, can be formed by spin coating, and has good dielectric properties. It can be used as the dielectric layer of organic field transistor (OFET), also known as organic thin film transistor (OTFT). process conditions Drying treatment: PMMA has a hygroscopic property, so it is necessary to dry before processing. Suggested drying conditions PMMA The United States and Japan have made mandatory provisions in the law. The glass of primary and secondary schools and kindergarten buildings must be acrylic (acrylic). With the continuous improvement of Chinese laws and regulations, it is expected that in the near future, Chinese law will also stipulate that primary and secondary schools and kindergartens must adopt plexiglass (acrylic) as building glass. Meanwhile, the pace of urban construction has been speeded up in various parts of China. Street signs, advertising lights boxes and telephone kiosks have emerged. A large part of the materials used are plexiglass and acrylic materials. Sanitary ware, organic glass acrylic bathtubs with luxurious appearance, a sense of depth, easy cleaning, high strength, lightweight and comfortable to use, has been widely used, the current domestic production of organic glass acrylic bathtub about 1 million 500 thousand, the annual consumption of PMMA Extrusion board?or?pouring plate more than 5000 tons. With the improvement of Chinese architectural laws and regulations, PMMA will be more competitive in more applications. In addition, special plexiglass, such as optical plexiglass, anti radiation plexiglass and optical grade plexiglass, is still blank in China's construction industry, and there is great room for development.