拜耳Desmopan系列TPU详细说明
TPU(Thermoplastic polyurethanes)名称为热塑性聚氨酯弹性体橡胶。主要分为有聚酯型和聚醚型之分,它硬度范围宽(60HA-85HD)、耐磨、耐油,透明,弹性好,在日用品、体育用品、玩具、装饰材料等领域得到广泛应用,无卤阻燃TPU还可以代替软质PVC以满足越来越多领域的环保要求。
热塑性聚氨酯弹性体(Thermoplastic polyurethane) :
所谓弹性体是指玻璃化温度低于室温度,断裂伸长率50%,外力撤除后复原性比较好的高分子材料。聚氨酯弹性体是弹性体中比较特殊的一大类,聚氨酯弹性体的硬度范围很宽,性能范围很宽,所以聚氨酯弹性体是介于橡胶和塑料的一类高分子材料。
可加热塑化,化学结构上没有或很少交联,其分子基本是线性的,然而却存在一定的物理交联。这类聚氨酯称为TPU 。
TPU作为弹性体是介于橡胶和塑料之间的一种材料,这从它的刚性看出来,TPU的刚性可由弹性模量来度量。橡胶的弹性模量通常在1~10Mpa,TPU在10~1000Mpa,塑料(尼龙,ABS,PC,POM)在1000~10000Mpa。TPU 的硬度范围相当宽,从Shore A 60~Shore D 80并且在整个硬度范围内具有高弹性;TPU在很宽的温度范围内-40~120℃,具有柔性,而不需要增塑剂; TPU对油类(矿物油,动植物油脂和润滑油)和许多溶剂有良好的抵抗能力;TPU 还有良好的耐天候性,极优的耐高能射线性能。众所周知的耐磨性,抗撕裂性,屈扰强度都是优良的;拉伸强度高,伸长率大,长期压缩永久变形率低等都是TPU的显著优点。
拜耳TPU Desmopan同系列型号介绍
Desmopan 150 Footwear High Strength
Desmopan 192 Footwear High Strength
Desmopan 3385A Fast Molding Cycle; Good Wear Resistance
Desmopan 345 High Strength
Desmopan 3485A High Melt Stability
Desmopan 355 Hydrolysis Resistant
Desmopan 356 Hydrolysis Resistant
Desmopan 359 Hydrolysis Resistant
Desmopan 365 Hydrolysis Resistant
Desmopan 372 Hydrolysis Resistant
Desmopan 385 E Hose High Strength
Desmopan 385 S High Strength
Desmopan 392 High Strength
Desmopan 445 High Heat Resistance
Desmopan 452 Grease Resistant
Desmopan 453 Good Wear Resistance; Grease Resistant
Desmopan 585 Hydrolysis Resistant
Desmopan 786 E High Strength; Hydrolysis Resistant
Desmopan 786 L High Strength; Hydrolysis Resistant
Desmopan 786 S Hydrolysis Resistant
Desmopan 790 High Strength
Desmopan 795 U Hydrolysis Resistant; Microbe Resistant
Desmopan 9385 A Wire Cable Applications Hydrolysis Resistant
Desmopan 955 U Sporting Goods Hydrolysis Resistant
Desmopan DP 1045D Molded Ear Tags Fast Molding Cycle; High Strength; Hydrolysis Resistant
Desmopan DP 1050D Molded Ear Tags; Rollers Fast Molding Cycle; High Strength; Hydrolysis Resistant
Desmopan DP 1060A TPU, Unspecified Engineered Applications Grease Resistant;
Desmopan DP 1080A TPU-Polyester Engineering Parts
Desmopan DP 1080AU TPU-Polyester Engineering Parts
Desmopan DP 1085A TPU-Polyester
Desmopan DP 1092A TPU, Unspecified Footwear Fast Molding Cycle; High Strength