PA66 AFX218SV50①PA66 AFX218SV50 ‖。PC IR2210 HDPE P603H U 、‖。PPS OB008 TPSIV 3345-65A PA66 A25GFL PEKTC7HBZ 、‖。PBT 1800M30 PC/ABS C7210A 、‖。TPU 368D HDPE DMDB-7950NT7 PA6 KN133G33 PA66 6030 TPE TP7CCZ PP 3225MC HIPS 1300 PBT 5010GT15 PMMA DF22 8N 、→，LLDPE R50035EE PBT 4830 NCL PPO ZX06323 NC POM F20-03 ABS GRM2600L TPU ET164D 、‖。PMMA TS1778 PC GSV2010R2 BK 、→，LDPE LD165 、‖。PA66 NPD-026 PBT E202G30 、‖。PA66 GF50-01 、‖。PPO SE1GFN2 、‖。PC/ABS 2753 、‖。LCP LA-130 、→，TPX R1180 、→，PC 3100 、→，SEBS H1141 、→，PC K-20T28 、→，PP K1011 、→，POM MT8U01 、‖。PC S1000UR 、→，PA11 MB3000 、‖。PBT 1210G3 SURLYN PC350 、‖。PP TF430 、→，PA612 77G43L PP J106MG 、‖。PC/ABS 210NHBL 、‖。POM N2640Z4U 、→，LDPE 2801TH00W 、‖。PBT 5220U GY3A500 PA6 N-33FG-1100 TPU S85A 、→，EVA 00328 、→，PC 0700 、‖。AS 552495 、→，PC/ABS 920MG 、→，PMMA P-601 、‖。POM C2521XAP2 PA6 CM1001G-15 、→，PC LF-1030 、‖。PBT 2107G30 PP 1244 、‖。PA66 S223-D 、→，PA66 A3401 、→，TPU 58237 LDPE LD2426K 、→，PES ES5340 、‖。PA66 AKV30H1.0 PC/ABS FR2000 、→，PP TKC270ND72253 、→，EPDM 7456 、‖。PP T3002 、‖。PC GS2030MR2 BK PPO GTX870-7001 、‖。 E210F PA6 CM1016G-30 、→，PP MF001AS 、‖。PBT B2520 PC/ABS T65XF 、‖。PA66 3010GN30 TPV A64BI 、→，PEEK 4000G 、‖。POE 8210 AS PN-127L100 、→，PBT 5010GN6-15M8AM POM SX-35 、‖。PC B4130R BK 、‖。TPU U101 PP 100BSR-ONE 、‖。PP HJ600R PA6 B3EG3 PC/ABS S6500 PA66 70G30HSR2 PA/MXD6 1524-9008 、‖。PBT 4115F 、‖。PA46 IG-S253F7 PA66 10B140 、‖。PA66 80G43HS1L PBT IQ420 、‖。POM KT-5M 、→，PESU AG-320 TPE DSMPL460-S 、‖。PP FB45C 、‖。PBT 3300-2FC 、‖。PPS -hMR60 TPE 7246 PC/ABS2800-701 PP FC9411G PMMA MI7-101 PMMA IH TPU C95A10 PBT 2001 、→，PP HP502 TPU R395U PA6 CM1014V0 PP HF955MO 、‖。PA66 R1000 PBT TV4290 PC 25UR TPU U-290AL 、‖。PPS P-28 EVA 1922A 、→，PES 1483N 、‖。 PA-430 PC ML7694 PA66 70G30L PP 2014 、→，GPPS 0600REP PP RP1903 、 PA66 AFX218SV50①PA66 AFX218SV50PVC (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.