Dab tsi yog qhov txawv ntawmThermoplastic Polyurethanethiab Thermosetting Polyurethane?
Thermoplastic Polyurethane (TPU) yog cov khoom siv polymer nrog lub zog zoo heev, kev ua haujlwm tsis zoo, tshuaj lom neeg, thiab lwm yam khoom, koom nrog hauv qeb ntawm thermoplastic polymers.
Thermosetting Polyurethane (PUR) yog cov khoom siv polymer nrog cov rwb thaiv tsev tshwj xeeb, tiv thaiv tshav kub, thiab ua kom puas, uas yog nyob rau hauv qeb ntawm thermosetting polymers.
Lawv muaj cov qauv sib txawv
TPU Muaj tsawg dua urea pawg hauv nws cov qauv, ua los ntawm cov khoom xws li polyethers thiab polyesters, ua rau cov khoom xws li elasticity zoo, abrasion tsis kam, thiab roj kuj.
PUR: Feem ntau tsim los ntawm cov tshuaj tiv thaiv ntawm isocyanates thiab polyols, nrog nws cov saw hlau molecular feem ntau muaj urea pawg. Lub polymer molecular qauv tsis yooj yim hloov.
TPU: Muab cov khoom xws li roj ua haujlwm, ua haujlwm tsis zoo, tiv thaiv corrosion, thiab kua muag tsis kam, nrog rau kev ua haujlwm zoo thiab yooj yim. Nws khaws zoo elasticity txawm nyob rau hauv ib puag ncig uas tsis kub.
PUR: Ua kom muaj rwb thaiv tsev siab, tiv thaiv tshav kub, thiab hardness ntau dua. Txawm li cas los xij, nws nyuaj rau cov txheej txheem thiab tsis tuaj yeem rov ua dua lossis hloov kho.
TPU: Muaj ntau yam kev siv, xws li hauv cov khau kis las, cov hlua khi, cov roj foob, thiab cov raj xa dej.
PUR: yog siv dav hauv kev lag luam xws li hluav taws xob, khoom siv hluav taws xob, tsheb, kev tsim kho, thiab kev dav hlau, xws li hauv hluav taws xob nplaum, cov khoom siv sab hauv, thiab cov ntaub ntawv pov thawj.
Thermoplastic polyurethane (TPU) thiab thermosetting polyurethane (PUR) sib txawv ntawm cov qauv, khoom, thiab kev siv. TPU paub txog nws txoj kev ua tau zoo thiab ua tau yooj yim, thaum PUR sawv tawm rau nws cov hardness thiab rwb thaiv tsev. Ntau hom polyurethane muaj cov ntawv thov tshwj xeeb hauv ntau qhov chaw, thiab xaiv cov khoom siv zoo tuaj yeem txhim kho cov khoom lag luam zoo thiab txo cov nqi.