Menene bambanci tsakaninTPUda PU?
TPU (polyurethane elastomer)
TPU (Thermoplastic Polyurethane Elastomer)nau'in filastik ne mai tasowa.Saboda kyakkyawan tsari, juriya na yanayi, da abokantakar muhalli, ana amfani da TPU sosai a cikin masana'antu masu alaƙa kamar kayan takalma, bututu, fina-finai, rollers, igiyoyi, da wayoyi.
Polyurethane thermoplastic elastomer, wanda kuma aka sani da thermoplastic polyurethane roba, an rage shi da TPU, nau'in (AB) polymer ne na layi na n-block.A babban nauyin kwayoyin halitta (1000-6000) polyester ko polyether, kuma B diol ne mai dauke da atom ɗin carbon madaidaiciya 2-12.Tsarin sinadarai tsakanin sassan AB diisocyanate ne, yawanci ana haɗa shi ta MDI.
Thermoplastic polyurethane roba dogara a kan intermolecular hydrogen bonding ko m giciye-haɗin tsakanin macromolecular sarkar, da kuma wadannan biyu giciye-links Tsarin da ake sake juyawa tare da karuwa ko rage zafin jiki.A cikin narkakkarwar ko yanayin bayani, dakarun intermolecular suna raunana, kuma bayan sanyaya ko ƙamshi mai ƙanƙara, ƙaƙƙarfan rundunonin ƙwayoyin cuta suna haɗuwa tare, suna maido da kaddarorin asali na asali.
Polyurethane thermoplastic elastomersza a iya rarraba zuwa nau'i biyu: polyester da polyether, tare da fararen nau'in nau'i na nau'i na nau'i na nau'i na nau'i na nau'i na nau'i na nau'i na nau'i na 1.10-1.25.Nau'in polyether yana da ƙarancin dangi fiye da nau'in polyester.Gilashin canjin zafin jiki na nau'in polyether shine 100.6-106.1 ℃, kuma na nau'in polyester shine 108.9-122.8 ℃.Matsakaicin zafin jiki na nau'in polyether da nau'in polyester yana ƙasa da -62 ℃, yayin da ƙarancin zafin jiki na nau'in ether mai ƙarfi ya fi na nau'in polyester.
Abubuwan da suka fi dacewa na polyurethane thermoplastic elastomers sune kyakkyawan juriya na lalacewa, kyakkyawan juriya na ozone, babban taurin, babban ƙarfi, mai kyau na roba, ƙarancin zafin jiki, juriya mai kyau, juriya na sinadarai, da juriya na muhalli.A cikin mahalli mai ɗanɗano, kwanciyar hankali na hydrolysis na polyether esters ya zarce na nau'ikan polyester.
Polyurethane thermoplastic elastomers ba su da guba da wari, mai narkewa a cikin kaushi irin su methyl ether, cyclohexanone, tetrahydrofuran, dioxane, da dimethylformamide, da kuma a cikin abubuwan da aka haɗa da su da suka hada da toluene, ethyl acetate, butanone, da acetone a daidai gwargwado.Suna nuna yanayin mara launi da gaskiya kuma suna da kwanciyar hankali mai kyau.
Lokacin aikawa: Afrilu-22-2024