PC resin is a polar non crystalline polymer, density: 1.380 g/cm3, glass transition temperature: 87 degrees C, so the thermal stability is poor, not easy to process. Can not be used directly, must be modified mixing, adding related additives and filler can be used. It is determined that the properties and requirements of the prepared PVC materials are different because of the different kinds and frbbbbbbs of the additive and filler. We usually call it a PVC bbbbula, which is strictly a PVC modified bbbbula, and PVC is only modified to use. This class is often classified as polymer modified material. The modification of polymer materials mainly revolves around the high perbbbbance of general plastics, the conversion of single component materials to multi component materials and composites, and the functionalization and optimization of materials. In general, PVC should be modified to granulate first, and after the bbbbation of particles by screw extruder, the plasticization is more sufficient and the processing is easier, especially the process is the injection product. The screw extruder is one of the most important equipments in plastic molding. It is used for solid conveying, compbbbbbb, melting, shearing and mixing extrusion of plastics through external power transmission and heat transfer of external heating elements. Screw extruders play an important role no matter as plasticizing and granulating machines or molding machines. Strictly speaking, there are special requirements for PVC products. PVC modified bbbbula is made according to customer requirements. There are also copolymerization in the PVC production process, such as vinyl chloride copolymers, PVC blends, and chlorinated polyvinyl chloride (PVC) [3].

Perbbbbance indicators of PVC modification

Colourability

The thermal stability and light resistance of PVC are poor. Hydrogen chloride was decomposed at 150 C, with the adverse rebbbbbb of the plasticizer content. In addition, the influence of pigment on PVC is reflected in whether pigment is reacted with PVC and other components of PVC products, and pigment itself is resistant to migration and heat resistance. Some of the ingrents in the coloring agent may cause the degradation of the resin. For example, iron ions and zinc ions are the catalysts for the degradation of PVC resin. Therefore, the use of iron oxide (red, yellow, brown and black) pigment or Zinc Oxide, zinc sulfide and white pigment lithopone will reduce the thermal stability of PVC resin. Some of the coloring agents may be associated with the degradation products of PVC resin. Such as ultramarine pigment acid resistance is poor, so in the PVC coloring process, with the PVC decombbbbbbbb of hydrogen chloride produced by the interbbbbbb of losing their color. Therefore, as far as PVC coloring is concerned, the characteristics of the resin and related auxiliaries are considered, and the characteristics of the pigments are combined. The following problems should be paid attention to when choosing a colorant. [4]  PC/ABS T65 HG 德國科思創(chuàng) MVLDPE(茂金屬)美國陶氏）2036P TPUAH-571 PP寧波甬興075(粉) PC帝人 G-3115P PBT漳州長春4815 NCF LCP油墨LA-130 LCP油墨MG350 TPU德國科思創(chuàng)（拜耳）5377（粉） PA12 基礎創(chuàng)新塑料 SL-4530 PA66歐盟杜邦70GB40HSL LLDPE沙特東方石化FD 21HS POM 三菱工程 FG2035 POM 德國巴斯夫 N2310P PBT寶理CRN7030BBPC/ABS 三星 HI-1001BP PMMA LG HI8355 PPO 基礎創(chuàng)新塑料 WCV063 PETG 美國伊士曼 GN220 PA66美國杜邦74G33EHSL BK354 PC三星 HF-3201GP POM 大?；瘜W 0A20 PA66美國杜邦73GM30HSL PP中石化茂名N-S30G PP沙特巴塞爾EP548S PEI 基礎創(chuàng)新塑料 ATX100 MVLDPE(茂金屬)美國陶氏）2045G TPE德國膠寶TF6FMA-S340 POE新加坡?？松梨?980FL PMMA 奇美 CM-211 PBT比利時杜邦S620F20 TPU德國巴斯夫1190A10 PA66意大利泰克尼卡A20V35-RD ETFE 大金 EC-6820 CPE美國陶氏3611EPC基礎創(chuàng)新塑料(南沙) 940-701 PC/ABS T65 HG 德國科思創(chuàng) PC/ABS T65 HG 德國科思創(chuàng)

EPS(1) cost barrier

PVC is a basic chemical raw material, and its product diversity is relatively small. Under the complebbby 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 bbbbbb 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 barriersPC/ABS T65 HG 德國科思創(chuàng) PA46帝人G2000E LDPE卡塔爾石化MG70 ABS基礎創(chuàng)新塑料A3000 BK8115 PPO 基礎創(chuàng)新塑料 N225- TPEJSRRB830 PP樂天化學SJ-150 PBT基礎創(chuàng)新塑料736-BK1066 POM 杜邦 DE20242 POM 巴斯夫 N2211PVX TPEE美國杜邦DYM350 BK PA612 美國杜邦 159 PP遼寧華錦化工P340 PP北歐化工HC115FB PA66德國巴斯夫BN50G6HS BK PBT基礎創(chuàng)新塑料(南沙)ENH4560 BK1066 HDPE菲律賓NPC AHD6070UAPA66美國杜邦101L ABS奇美PA-747R LDPE馬來PETLINN103X TPU拜耳優(yōu)得UD-64D10PEI 基礎創(chuàng)新塑料 1010 PA66東麗V0B4 K(Q)膠大林KR-03 TPE美國吉力士G7960-9001-02 PPO 基礎創(chuàng)新塑料 N1250 PPS三星XP-2165BM PA6荷蘭D J-1/30/TF/15 PA66基礎創(chuàng)新塑料RF-700-12 PC帝人 G-3130PH TPE荷蘭DGX5857 PBT漳州長春3020-104S MS新日鐵住金MS-200 LCP住友化學E4008 MR TPV 美國埃克森美孚 8221-70 PPS東麗A400MX01

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, se energy, protect the environment, safety production, technological progress, the national development and Rebbbb Commission issued the "bbbbulation (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 rebbbbbbbb 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.

Scale barrierPC/ABS T65 HG 德國科思創(chuàng) PA6集盛BFG10 PC新加坡帝人 L-1250Y TPE新加坡 APEX6000-45 TPV 荷蘭D 3150B PA6T 德國巴斯夫 TKR4365G5 PMMA LG IG-840 PA66德國朗盛DPA30SFN30 PC三菱工程 GSN-2020DR PMMA 上海贏創(chuàng)德固賽 8NDF22 LDPE尤尼卡DNDV0405R EVA韓華道達爾E180F POM 美國泰科納 CFX-0261 LCP杜邦7130-BK010 PPO 基礎創(chuàng)新塑料 PX1112 LDPE中石化燕山1I70A TPU德國巴斯夫ED-95A50U TPE東麗5557 PP基礎創(chuàng)新塑料(沙特)PHC27 PC基礎創(chuàng)新塑料 BFL4000 HDPE中石油獨山子DMDA-8008 LDPE中石化燕山1I50A POP美國陶氏1450G1 PA66德國朗盛D.DP2851.30H3.0 GPPS臺化GP5500 POM 美國泰科納 S9362 PA66基礎創(chuàng)新塑料RFL-4036M LCP美國杜邦6140L BK010 PA66瑞士EMS GV-2H PC/PET 德國科思創(chuàng)（拜耳） UT408 PP美國?？松梨赑P7033NTPEE三菱工程A1900N PPO 旭化成 L544V PC帝人 MN-3600HA PC泰國三菱工程 GSN2030DF PPO 旭化成 L543V