POM S9364 ≠ POM S9364 PC/ABS C6200 、→，TPV X-4355 、PC D20001 、‖。TPV 3170N 、‖。PA66 RCL36XXP K(Q)膠 PB-5910 、→，EPDM 4770R 、LCP E6008L 、ASA HRA170-BR6F013U 、PA6 B3ZG7 OSI 、‖。TPE 3017 、→，EVA D5010 、PC 503RS 、‖。PA6T CH230 、→，PEEK LX03447 、‖。PP 1222F 、PC 2814R 、‖。PP 6613N 、LCP 5130L BK 、ASA WG1700 、PP 2300SC 、‖。PC DE1-4 、→，PA66 GF50-07 、PBT C1202 、ABS 750SW 、‖。PC EFT3200H 、→，EMAA 5023 、‖。PP PJ3003 、‖。TPU 1685AE 、PP 3700 、PC/、→，PP EP648V 、→，PCTA DN011 FEP 5100 、PBT G1030 、→，PC ML6413 、PA11 BESNO-TL 、ABS EXCP0153 、PA6 BG-30S 、‖。POM KB1003 、PC 1895 、‖。PC 925 NC 、TPE TF9AAA 、POM C9021G 、‖。TPV HX-555AN 、‖。PP R500F PTFE 8A 、POM N2200G5 、PP 2515N PA610 QL4540 、‖。PC 3027U-C 、PC 1302HP-10 、PA6 KN133G20 、PP P104 、PMMA D150 、→，PP HA686J 、→，PA66 3010N5-SL4-3X 、‖。PC/ABS MB2215 、PC DE0021E 、PA66 PA355M6 、‖。PBT 4612R 、PC 4731-8 、→，LDPE 120J 、→，TPEE 6097900 、PC 1600 、→，PBT WFL369 、→，EVA P1907 、→，PP 3660 、PC G-3430H BK PBT/、EVA 520-5005 、PC PC1000 、‖。PBT EH7025AG PC/PBT 1760-7001 PA9T T1420A WH 、 POM S9364 ≠ POM S9364 PVC (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.