TPEE 82D

Hytrel 8238  邵氏硬度D82 标准性能聚酯弹性体
Hytrel DYM250  (TPC+PBT)中等模量 聚酯弹性体具有优异的抗冲击性用于气囊门应用
Hytrel DYM350  (TPC+PBT)中等模量 聚酯弹性体具有优异的抗冲击性用于气囊门应用
Hytrel G3548  邵氏硬度D35 标准性能聚酯弹性体具有不变色稳定剂
Hytrel G4074  邵氏硬度D40 标准性能聚酯弹性体具有热老化保护
Hytrel G4078  邵氏硬度D40 标准性能聚酯弹性体具有不变色稳定剂
Hytrel G4078L  邵氏硬度D40 标准性能聚酯弹性体具有耐光性
Hytrel G4774  邵氏硬度D47 标准性能聚酯弹性体具有热老化保护
Hytrel G5544  邵氏硬度D55 标准性能聚酯弹性体具有热老化保护
Hytrel HTR237BG  邵氏硬度D45, 润滑, 高粘度聚酯弹性体用于吹塑成型
Hytrel HTR4275  邵氏硬度D55 高粘度聚酯弹性体具有良好的耐热老化性能用于吹塑成型
Hytrel HTR6108  61 Shore D High Performance PolyesterElastomer with Low Permeability to Fuels and Oils
Hytrel HTR6437G1  邵氏硬度63D, 玻纤增强, 高性能聚酯弹性体
Hytrel HTR8068  邵氏硬度D44, 阻燃, 聚酯弹性体用于挤出和注塑成型
Hytrel HTR8136BK  邵氏硬度49D, 热稳定, 高粘度聚酯弹性体用于吹塑成型

Light and heat induced oxidation are the two main factors ofpolyether ester elastomer degradation aging, peg-pbt copolyesterheat and light resistance are poor, thermal oxidation degradationand photoaging degradation is very serious. Heating acceleratesdegradation. With the decrease of molecular weight in the agingprocess, the breaking elongation of the material decreases and theinstantaneous elastic recovery rate becomes worse.In addition,polyether ester elastomers also have different degrees ofhydrolysis, and the amount of gel formation increases due to thecross-linking reaction of polyether ester elastomers in water.Peg-pbt copolyester was implanted in vivo as biomaterial, whichtook advantage of its characteristics of easy hydrolysis anddegradation. Peg-pbt copolyester is degraded in water and followsthe hydrolysis mechanism, that is, the H2O molecule attacks theester group between PEG and PBT and breaks the chain. Thedegradation products are PEG and low molecular weight PBT. Thedegradation rate is affected by composition, temperature, pH value,enzyme and other factors. The higher the PEG content, temperatureand pH value is, the faster the degradation rate will be. Byadjusting the contents of the two components, the degradation ratecan meet the requirements of different USES.\\