Hytrel杜邦TPEE 4556--TPEE thermal characteristics：
TPEE has good high temperature resistance. The higher thetensile strength, the better the temperature resistance; When TPEEis continuously heated at 110 ~ 140 ℃ for 10h, most of it is notweightless. When TPEE is heated at 160 ℃ and 180 ℃ for 10h, theweightless state is only 0.05% and 0.1%. Therefore, the applicationtemperature of TPEE, especially in high and short-term, is greatlyincreased. It can be integrated into the automatic control of thepaint baking temperature (150 ~ 160 ℃) of the automatic productionline, and its performance damage is small under high and lowtemperature test. When TPEE is applied at about 120 ℃, its tensilestrength is much higher than that of TPU. In addition, TPEE alsohas excellent low temperature resistance. The brittle point of TPEEis less than - 70 ℃, and the lower the tensile strength, the betterthe drought resistance. Most TPEE can be applied for a long time at- 40 ℃. Because of the equilibrium characteristics of TPEE at highand ultra-low temperatures, its ambient temperature range is verywide and can be used at - 70 ~ 200 ℃.
Hytrel杜邦TPEE 4556--TPEE washability is basically
TPEE has good wear resistance and can withstand most of thepositive and negative liquid organic chemical compounds (such asacid, alkali and amine second-generation hydrocarbon compounds) atroom temperature, but it is helpless for benzene homologues (otherthan cold coal) and ester compounds. Its professional skills inchemical resistance are improved by the improvement of the tensilestrength of precision machined parts. TPEE has good antisolubilization and water absorption characteristics for mostanalytical chemical solutions and natural industrial waste gas. Thewholesale water absorption capacity of finished oil is only 1 / 3 ~1 / 300 of that of neoprene, high-pressure polyethylene with highchlorosulfonation density, butyl acrylic rubber and othercorrosion-resistant plastic materials, but TPEE has weakhigh-temperature water solubility, In addition, polycarbonimidebinder can further improve its anti melting properties.
Hytrel杜邦TPEE 4556--TPEE aging resistance
TPEE has high organic chemical stability and high quality undermany different standards, such as fog water, reactive oxygenspecies, outdoor vapor embrittlement, etc. Like most raw materialsof elastomer materials, it is easy to dissolve under the effect ofultraviolet light. Therefore, according to the standard of outdoorapplication or light exposure of machinery and equipment, thesecret recipe should be added with ultraviolet safety protectionmodified engineering plastics, which include carbon black andvarious pearl powders or other radiation protection materials; Inaddition, TPEE also has different levels of hydrolysisreactivity.
