TPV密封221-55 ‖。PC/ABS 2253 、‖。PPS FZ-6600-A5 PP HF-3308 PP 7033L1 、‖。PBT KU2-7434 、‖。PBT 4305 、‖。PC 141-111L 、‖。PP 2309L 、‖。 VA900 、‖。 1315 、‖。POM N2650-Z2LEV PA6 BKV140 、→，PA11 7380MAC 、→，PTFE SM2 LCP GA130 、→，PPO GTX6203 、→，PC/、‖。AS PA66 RX01075 TPE UM551-V EVA 2830A 、‖。PP EP448T 、→，LCP A130 、‖。PP 1250F 、‖。PA6 2210G3 、→，PSU P-1720 、‖。PP 7536 、‖。TPU 1185A10LC(TP) 、→，TPEE GPV40B7 ABS U407B 、→，PA66 RF008IS 、‖。PMMA 4026 PBT 702MS 、→，PEEK LC005 BK 、‖。PMMA D 1067 PA46 G2000E 、‖。PPO PX2801Z-701 PC 301-22 PP 1251 、‖。LCP T150 TPU 125KW 、→，LCP E5002L PTFE MP1100(粉) 、→，SIS D1183B LDPE SD330 、‖。TPV 3470 、→，TPU MH24-50 、→，TPU S60D 、→，AS、→，PA6 1015GH35 PP MPS20M 、→，PP HP528NH 、→，LCP C400HD PC 945 WH4D146 PC/、‖。PC LN-2520HB 、‖。EPDM S600F PA66 2020GC4 PP 6262DIGILYTE PA6 73G30HSL 、→，LDPE 28H430 PC GSH2020TR MV、→，PC/、→，LLDPE PE-135 、→，PBT HR5330HFS 、→，ETFE l200 PA6 6GF50 PPS 9120L4 、‖。AS 552495 、‖。PC EXL4016 、‖。POM F20-54 PC 503R-131 PC DS0029 、‖。PP 3117ANC1 PA66 RFL-4033 、→，PBT 5820G40H TPU BTE-75A 、‖。 3165 LDPE NA272130 PP 1255-01 、‖。PC/ABS 7560 BK PPS OF006 、→，LDPE C-26 、‖。POM F20-03 PA46 TS256F6 PP H07-00 、→，IXEF 1022/9008 、‖。PPO PO2318A 、→，POM FU2015 、→，PBT BF4232 、→，PA66 54G43 、→，TPEE 1192A PC/ABS C6600-BK TPE G7630-9 POM KD000 EPDM J-0050 、‖。TPE 1025NM|1002 、→，PP CX04-82 COC 9X06519 、‖。PBT 1500G15 、‖。PP N00N-00 、‖。PP HC101BF PC/、‖。EPDM 3070 、‖。TPE TC5FRN HDPE A5043 PA12 3035LU1 、→，TPV X6145 TPE 6002-55A PP CPC 04C 、‖。PC/ABS 、 TPV密封221-55PVC (1) cost barrier PVC is a basic chemical raw material, and its product diversity is relatively small. Under the completely competitive market structure in China, the cost is the most important factor that affects the competitiveness of enterprises. As a result of industry characteristics, raw materials and energy occupy a high proportion in product cost. The cost of oil ethylene is mainly affected by the impact of the price of petroleum; calcium carbide production cost is mainly affected by the cost effect in general, calcium carbide, calcium carbide cost accounted for about PVC 70% of the cost, and the cost of electricity has accounted for about 60% of the cost of calcium carbide, because China is rich in power resources in the west, the electricity price is relatively low, compared with the production Eastern Enterprises calcium carbide production enterprises, the calcium carbide method has certain advantages in terms of cost. With resource endowments, supporting the production of calcium carbide enterprises, will build more solid cost barriers. Industrial policy barriers To promote the upgrading of chlor alkali industry in the industrial structure, regulate the development of the industry, in accordance with the principle of sustainable development to optimize the layout and orderly development, adjust the structure, save energy, protect the environment, safety production, technological progress, the national development and Reform Commission issued the "formulation (chlor alkali caustic soda, PVC) industry access conditions", and since the beginning of December 1, 2007: in the industrial layout for new chlor alkali production enterprises should be close to the resources, the energy area, the eastern region in addition to the relocation of enterprises outside the principle of caustic soda project is no longer the new carbide PVC project and its matching; technology requirements for construction and reconstruction of the calcium carbide PVC project must be simultaneously supporting the building of carbide slag cement and carbide slag comprehensive using the device access conditions; from the index of energy consumption and environmental standards for new projects. The adjustment of industrial policy greatly improves the threshold of capital, technology, talents and resources in the chlor alkali industry EVA is a copolymer of ethylene and acetic acid. The Chinese chemical name is ethylene vinyl acetate copolymer (ethylene vinyl acetate copolymer). The English chemical name is Ethylene Vinyl Acetate Copolymer. The application field of EVA is quite extensive. The market consumption in China is increasing year by year, especially in shoemaking industry, which is applied to middle and high grade shoes, mountaineering shoes, slippers, sandals, soles and interior materials. Chinese name EVA plastics Foreign language name Ethylene Vinyl Acetate Copolymer Chinese chemical name Ethylene vinyl acetate copolymer application area Shoe making industry Make Copolymerization of ethylene and acetic acid Catalog 1.1 encyclopedia card 2.2 brief introduction 3.3 characteristics 4.4 application fields 5.5 physical property table medical aircraft The lin] Ethylene ['the theta, [of] Vinyl [of] vainil] ['the ethylene vinyl Acetate ['? sitit] [of] Copolymer [k u'p ester salt. Lim.] [of] copolymer brief introduction Ethylene vinyl acetate copolymer, called EVA. Ethylene vinyl acetate (VA) content in 5%-40%, and polyethylene (PE) compared to EVA due to the molecular chain of the vinyl acetate monomer, thereby reducing the high crystallinity, improved toughness, impact resistance, filler compatibility and heat sealing performance, is widely used in foam material, functional films, packaging mold, hot melt adhesive, wire and cable and toys and other fields.