pa66/72g33w(图)
pc三菱工程 gsh2020r2
pa6德国朗盛dp1802h3.0
abs旭化成sx-200
sebs可乐丽4033
pa66美国杜邦77g43l-bk031
ppo 三菱工程 ah60
pom 宝理 vc-32
pa66/72g33w(图)
pa66惠州南亚6410g5 awt2
pbt美国泰科纳2002
pom 基础---塑料 kfl-4016
pa66杜邦fe15040-bk032d
pa66/72g33w(图)
pa9t 可乐丽 gx1500a bk
pa6美国舒尔曼6 mv 14
tpee美国泰科纳rkx200
pa6三菱工程1015g30
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&filler can be used. it is determined that the properties&requirements of the prepared pvc materials are different because of the different kinds&fractions of the additive&filler. we usually call it a pvc formula, which is strictly a pvc modified formula,&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 performance of general plastics, the conversion of single component materials to multi component materials&co-ites,&the functionalization&optimization of materials. in general, pvc should be modified to granulate first,&after the formation of particles by screw extruder, the plasticization is more sufficient&the processing is easier, espe---lly 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, compaction, melting, shearing&mixing extrusion of plastics through external power transmission&heat transfer of external heating elements. screw extruders play an important role no matter as plasticizing&granulating machines/molding machines. strictly speaking, there are spe---l requirements for pvc products. pvc modified formula is made according to customer requirements. there are also copolymerization in the pvc production process, such as vinyl chloride copolymers, pvc blends,&chlorinated polyvinyl chloride (pvc) [3].、ldpe汽车用聚塑料占汽车塑料总用量的5-6%，次于聚、abs，聚、聚酯，居第五位。聚主要用于制造空气导管、各种储罐。近几年聚在汽车上用量基本未，但是，轻量化的浪潮却促进了汽油箱塑料化，高分子量高密度聚hmwh-dpe则为主要材料。欧洲已将塑料油箱正式用于汽车。联邦德国较早地实现了塑料油箱工业化。的研究工作进展较快，但汽车行业对其工业化取慎重态度，---注意观望美国的动向。汽车工业所---于中低压聚。[1]、it provides greater design because of its excellent mechanical properties&good mode flow behior. 、pvc硬质聚有的抗拉、抗弯、抗压和抗冲击能力，可单独用做结构材料。软质聚的性、断裂伸长率、耐寒性会，但脆性、硬度、拉伸强度会。聚有的电气绝缘性能，可作低频绝缘材料，其化学性也。由于聚的热性较差，长时间加热会分解，放出hcl气体，使聚变色，所以其应用范围较窄，使用温度一般在-15~55℃之间。聚塑料形态各各异，差别很大，加工也多种多样，可压制、挤出、、涂层等。聚树脂的颗粒大小、鱼眼、松密度、纯度、外来杂质、孔隙率对加工性有都有影响；糊树脂则应考虑糊料的粘度和胶化性能。聚为无定形高聚物，收缩率小。、makrolon2456pcbayermaterialscienceag、tpe特软制品tpe/符合人体皮肤卫生要求，为---的---材料。高、高抗张、高延伸及柔韧之触感类似皮肤的触感，---消费者的---。tpe/tpr材料带来的贴身的触感，细心关怀。应用案例:特体玩具，等。tpe ha60、tpe ha70、tpe he890b(prh)、tpe ht45、tpe 5792n-pe、tpe 6600n-pe、tpe 7094n-pe、tpe 3226-2000、tpe 4767、tpe 4767-x05b、tpe 5557、tpe 7247-ji026、tpe 7247-nc010、pdx81336、(9) strong resistance, good electrical properties, good resilience, good lubricity, good wear resistance&good size stability.、in order to overcome these shortcomings,/to give them new performance, a variety of modifications he been made to the ppo. the method has two kinds of chemical (copolymerization, block, grafting, mesh&so on)&physical (blending, filling, reinforcingµfoaming). 、abs (1) the technological process of plastic coating、5. good melt rheological property 、lcp具有---的耐腐蚀性能，lcp制品在浓度为90%酸及浓度为50%碱存在下不会受到侵蚀，对于工业溶剂、燃料油、洗涤剂及热水，后不会被溶解，也不会引起应力开裂。⒉应用a、电子电气是lcp的主要市场：电子电气的表面装配焊接技术对材料的尺寸性和耐热性有---的要求能经受表面装配技术中使用的气相焊接和红外焊接；b、lcp：柔性印刷电路板、人造电子部件、喷气发动机零件、汽车机械零件、方面；c、lcp加入高填充剂或合金psf/pbt/pa：作为集成电路封装材料、代替环氧树脂作线圈骨架的封装材料；作光纤电缆接头护套和度元件；代替陶瓷作化工用分离塔中的填充材料。代替玻璃纤维增强的聚砜等塑料宇航器外部的面板、汽车外装的制动。lcp lx70m35h、lcp lx70m50、lcp lx70t35h、lcp lx70t40f、lcp lx70t45、lcp lx70u30、conductive nylon 66: it has good wear resistance, heat resistance, oil resistance&chemical resistance. it also greatly reduces the water absorption&shrinkage of raw materials,&has excellent dimensional stability&excellent mechanical strength. it can meet the requirements of electrostatic discharge&electrostatic discharge (esd) protection. these spe---l modified materials are spe---lly prepared&are suitable for the range of surface resistance from 100 to 1012 ohm / square (ohms/sq), which can be used for injection&extrusion molding. there are many advantages over metal&coating: the parts are lighter, easier to handle,&the cost of transportation is low. they are easy to assemble, he low manufacturing costs,&are less likely to be dented, cut&scraped. for identification/aesthetic purposes, some materials can be beforehand dyed to oid two coloring processing for free&expensive. detailed overview、melting temperature 295 degree c
、synthetic process、without modification of polyphenylene oxide (ppo) resin has good mechanical properties, electrical properties, heat resistance, flame resistance&chemical stability, but its poor solvent resistance&products are prone to stress cracking, low impact strength, it also has a fatal weakness -- high melt viscosity, processing range, cannot adopt pure ppo resin injection molding, which greatly s its application.、5. bad exhaust、chinese chemical name、the recycling of german pet bottles to "chinese sweaters" is also worth thinking,&there are about 8000000 pet bottles in the german market each year. the recycling company collected the bottles, crushed them into pieces/crushed them,&sold it to china at a relatively high price. according to the figures, a bottle of 16 liters of drink can be made into a sweater. before 1993, all the plastic bottles were in the trash, a small part of the recycling. since 4 years ago&the implementation of the tank fee, supermarket must recycle empty bottles, pet bottles, embarked on a journey to china, wan li: into synthetic crude wool sweater,&then returned to germany, homecoming. chinas textile industry has a huge demand for plastics. although traders will add a bit more to the price of german recycling companies, imports are cheaper than their own raw materials. the transport from hamburg to hongkong was very low, because there were a lot of vacancies on the ship after the freighter came from china&unloaded the textile. the cost of production in china is very low, because the labor force is low,&the environmental&so---l standards are not perfect. in chinese factories, these pet materials are classified according to color, cut into fragments&melted. after processing, pet bottles were returned to germany in the form of textiles&sold in germany. the value creation here is huge: a synthetic woolen sweater costs between 50&100 euros,&the material used is only 32 euro cents. the far east cant see the end of the old plastic starvation. china has not been able to meet its needs with raw materials. in this context, second hand materials like pet are multiplied. plastic empty bottles are used as raw materials in china, which shows that there is a world market of used raw materials in fact. 10 years ago, garbage was thrown into a garbage dump. "we were a consumer&discarding society." the example of chinas processing germany reselling illustrates the problem. "this market development shows to all consumers that some rubbish is indeed regenerated&reused."、pvcrajeshdeshpande谈到，印度pvc下游产品以pvc管材及配件为主，占该国pvc下游产品总量的43%。2012~2013财年个月下游需求增长20%，进口量增长50%。按照该速度发展，到2013年3月，印度---需求将达220万吨，pvc管材的发展速度也将达到两位数。由于pvc下游消费市场逐年扩大，印度pvc工业迎来较大的发展机遇。rajeshdeshpande，印度pvc产品下游消费市场的增长源于诸多方面。对基础设施建设的投入逐年。统计表明，“十二五”期间，印度对基础设施建设的投资将达8900亿；农村基础设施建设发展至35亿；对农村饮用水及卫生投资预算达25亿；将投资5300万加强灌溉建设；在德里-孟买工业走廊，将投资900亿建设大型基础设施，赞助45亿。
|
登录后台
