当前位置:汽车配件110网 >> 供\求\合作、代理、招聘信息中心 >> 求购 >>POM GB-25卐POM GB-25 |
详细内容:PTFE 它的摩擦系数极小,仅为聚 的1/5,这是全 碳表面的重要特征。又由于 -碳链分子间作用力极低,所以聚四 具有不粘性。 聚四 在-196~260℃的较广温度范围内均保持优良的力学性能,全 碳高分子的特点之一是在低温不变脆。tpu 5715 tpu 2363-55de tpu 90ak tpu s74d tpv 4445 pc df004p tpu 2363-55d PP韩国韩华道达尔RB200 PC韩国三星 LS-3302 PP北欧化工BHC5012C PA12 荷兰DSM G-4/45 PA6德国朗盛BKV30H1.0 ABS马来西亚东丽900 LDPE美国陶氏722 POM 美国杜邦 100ST PC韩国三星 HN-3301GL BK TPEE美国泰科纳672 TPUE385A PA6德国巴斯夫DB2010C BK PC奇美 PC -110V PP福聚7533N ABS基础创新塑料MC8800 BK1005 PC泰国三菱工程 S-1000UR HIPS新加坡TOTAL石化3351 ABS镇江奇美D-1000 PP韩国SK R361Y PA66日本东丽CM3004-V0 GY POM 日本旭化成 AK751 HIPS台化HP8250 BKPC基础创新塑料(南沙) EXRL0458 PP台化K8802 TPU拜耳优得UT-98A10 PA6日本三菱工程1013G43 POE美国陶氏8200 PC韩国LG 1201-05 PVC德国P80 PC基础创新塑料(南沙) 505RU TPV 荷兰DSM 4155B HIPS韩国锦湖HI425TV PA6日本三菱工程1011GH5 PA66美国杜邦FE17001 PBT日本三菱工程5010FN2 ABS Normal performance of ABS: Plastic ABS is nontoxic and tasteless, and its appearance is ivory color semitransparent, or transparent particles or powdery. The density of 3 1.05~1.18g/ cm, the contraction rate was 0.4%~0.9%, elastic modulus 2Gpa, Poisson's ratio is 0.394, the hygroscopicity of <1%, the melting temperature of 217~237 DEG C, the thermal decomposition temperature of >250 DEG C. mechanical property Plastic ABS has excellent mechanical properties and excellent impact strength. It can be used at very low temperature. The wearability of plastic ABS is excellent, its dimensional stability is good, and its oil resistance is good. It can be used for bearings under moderate load and low speed. The vermicular resistance of ABS is larger than that of PSF and PC, but smaller than that of PA and POM. Thermal Properties The thermal deformation temperature of the plastic ABS is 93~118 C, and the products can also be raised about 10 degrees C after annealing. ABS can still show a certain toughness at -40 C, and can be used in the temperature range of -40~100 C. Electrical properties Plastic ABS has good electrical insulation and is almost unaffected by temperature, humidity and frequency. It can be used in most of the environment. Environmental performance Plastic ABS is not affected by water, inorganic salts, alkali and various acids. But it can be dissolved in ketones, aldehydes and chlorinated hydrocarbons, and it will produce stress cracking by erosion of glacial acetic acid and vegetable oil. The weatherability of ABS is poor, and it is easy to degrade under ultraviolet light, and the impact strength is reduced by half after half a year. PC/ABS 韩国三星 NH-1000T LLDPE美国陶氏2047G PBT美国泰科纳3316 PC基础创新塑料 EXL1132T PVC日本钟渊K10S POE日本三井化学DF940 PC基础创新塑料(西班牙) 103R-111 PA66基础创新塑料RB004 PA66日本东丽CM3001-G30BK SIS日本JSR5403P PP东莞韩华道达尔GH41 TPEE美国泰科纳655 TPV 美国AES 9201-65 HIPS国乔PS-350 HDPE上海金菲HHMTR480AT TPE美国杜邦G3548L TPEE日本东丽7247R-F PC日本住友化学 301-40 ABS日本东丽844V BK ETFE 美国杜邦 HT-2181 PPE 日本旭化成 300V PBT基础创新塑料855-1001 TPU拜耳优得3660DU PA612 美国杜邦 FE5448 PA66基础创新塑料RA-1004 PPS日本油墨FZ-3805-A1 POM 韩国可隆 GF305 PA66美国杜邦HTN51G35HSL EVA台塑7360M POM 马来西亚宝理 GH-25D PPS日本油墨C-600SG PP韩国大林EP540V POM 日本宝理 M90-45XAP SEBS日本可乐丽4033 LLDPE沙特LL 6201RQ(粉) Thermal properties of PP Polypropylene has good heat resistance, and products can be sterilized at temperatures above 100 degrees C, without external force, and no deformation at 150. The embrittlement temperature is -35 C, and the brittleness will occur at lower than -35 C, and the cold resistance is not as good as that of polyethylene. For polypropylene glass transition temperature values reported a 18qC, 0qC, 5 DEG C, this is because people with different samples, containing crystalline phase and amorphous phase of different proportion, so that the amorphous part caused by the different chain length of molecular chain. The melting temperature of polypropylene increased by 40 than 50% about approximately 164 polyethylene, 170 C, 100% isotactic polypropylene melting point of 176 DEG C. chemical stability The chemical stability of PP is very good, in addition to being concentrated sulfuric acid and concentrated nitric acid erosion, are relatively stable for other kinds of chemical reagents, but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and chlorinated hydrocarbons can make polypropylene softening and swelling, while its chemical stability with the increase of crystallinity is increased, so polypropylene is suitable for producing various chemical pipes and fittings, good anticorrosion effect. LLDPE according to the life of the extruder, it is possible to widen the die gap, improve the air ring, modify the screw design to better extrude, and increase the motor power and torque if necessary. For injection applications, there is no need to improve the equipment, but the processing conditions need to be optimized. Rotational processing requirements of LLDPE grinding into uniform particles (35 mesh). The process includes filling the mold with a powder like LLDPE, heating and rotating the die with a biaxial direction to make the LLDPE evenly distributed. After cooling, the product is removed from the mold. The crystallinity of polyethylene with different density is different. The crystallinity has a linear relationship with the density, and they have a significant influence on many properties of polyethylene. As the existence of the short chain of polyethylene interferes with the crystallization of the main chain, the increase of the short chain will destroy the crystallization and reduce the density. The homopolymer high density polyethylene (HDPE) contains very few short branched chains, so it has high crystallinity and high density. Although LLDPE and HDPE belong to linear polyethylene, LLDPE is entirely the copolymerization of ethylene with alpha olefins. The copolymerization of LLDPE containing copolymer monomer ratio and high density, so there are many short chain linear backbone of LLDPE, the crystallinity and density are low; and the number of categories due to its short branched with different monomers varies, if the number of carbon atoms in the comonomer content. In the copolymer also, the copolymer density decreased also.
|
|