TPU Taw Qhia

Thermoplastic polyurethane (TPU) yog cov yaj-ua tau thermoplastic elastomer nrog cov kav ntev thiab yoog raws. Nws muaj cov yam ntxwv ntawm ob qho tib si yas thiab roj hmab thiab yog li nthuav tawm cov khoom zoo li durability, yooj thiab zoo heev tensile zog.

TPU, tiam tshiab ntawm cov khoom siv thermoplastic elastomer. Nws cov qauv muaj xws li ntu tawv thiab ntu mos, ua los ntawm polyols, isocyanate thiab saw extender los ntawm cov tshuaj tiv thaiv condensation.
Cov yam ntxwv ntawm TPU muaj xws li ib puag ncig-phooj ywg, kev ua haujlwm yooj yim, kev ua haujlwm sib txawv, kev siv dua tshiab thiab lwm yam.; TPU muaj cov khoom zoo ntawm lub cev, kev ua haujlwm tsis zoo, xim yooj yim, siab elasticity, huab cua tsis kam, roj tsis kam thiab tsis tshua muaj kub yooj thiab lwm yam, dav siv hauv xov tooj. rooj plaub, overmolding, khau, zaj duab xis, nplaum, siv & conveyor, hlau & cable thiab lwm yam.

Raws li polyols hom, TPU tuaj yeem muab faib ua qib polyester, qib polyether, qib polycaprolactone thiab qib polycarbonate thiab lwm yam.; Raws li hom isocyanate, TPU tuaj yeem muab faib ua TPU aromatic thiab aliphatic TPU. Ntau hom TPU muaj cov khoom sib txawv, tuaj yeem siv rau hauv daim ntawv thov sib txawv. Lub hardness ntau ntawm TPU yog dav, npog 50A-85D.

• Mos Segment (polyether lossis polyester): Nws yog tsim los ntawm polyol thiab isocyanate uas muab kev yooj yim thiab elastomeric tus cwj pwm ntawm TPU.
• Ntu nyuaj (arromatic lossis aliphatic): Nws yog tsim los ntawm cov saw txuas ntxiv thiab isocyanate muab TPU nws lub zog thiab kev ua haujlwm ntawm lub cev.
  1. Aromatic TPUs - raws li isocyanates xws li MDI
  2. Aliphatic TPUs - raws li isocyanates zoo li HMDI, HDI thiab IPDI

Thermoplastic polyurethanes yog elastic thiab yaj-processable. Cov khoom siv ntxiv tuaj yeem txhim kho qhov ruaj khov thiab kub ua haujlwm, txo kev sib txhuam, thiab ua kom cov nplaim hluav taws kub hnyiab, tiv thaiv kab mob, thiab huab cua.

Cov tshuaj tsw qab TPUs muaj zog, cov hom phiaj dav dav uas tawm tsam los ntawm microbes, sawv zoo rau cov tshuaj. Ib qho kev zoo nkauj zoo nkauj, txawm li cas los xij, yog qhov nyiam ntawm aromatics degrade los ntawm txoj hauv kev dawb radical ntxias los ntawm raug tshav kub los yog ultraviolet lub teeb. Qhov degradation no ua rau cov khoom tawg thiab poob ntawm lub cev.

Additives xws li antioxidants, UV absorbers, hindered amine stabilizers yog siv los tiv thaiv polyurethanes los ntawm UV teeb-induced oxidation thiab li no ua thermoplastic polyurethanes haum rau ntau yam kev siv uas yuav tsum tau thermal thiab / los yog lub teeb stability.

Aliphatic TPU, ntawm qhov tod tes, yog lub teeb pom kev ruaj khov thiab tiv thaiv kev puas tsuaj los ntawm UV raug. Lawv kuj yog optically ntshiab, uas ua rau lawv haum laminates rau encapsulating iav thiab kev ruaj ntseg glazing.