Waa maxay farqiga u dhexeeya TPU iyo PU?

Waa maxay farqiga u dhexeeyaTuneiyo Pu?

TPU (polyanurethane erastomer)

TPU (polmoplastic Polyrethane erastomer)waa noocyo kala duwan oo caag ah. Sababo la xiriira deeqdeeda wanaagsan, iska caabbinta cimilada, iyo saaxiibtinimada deegaanka, TPU waxaa si weyn loogu isticmaalaa warshadaha la xiriira sida agabka kabaha, tuubooyinka, filimada, fiilooyinka, fiilooyinka, iyo fiilooyinka.

Tababbarka polyurethane, oo sidoo kale loo yaqaan polmonlastic polyanuthane caag, oo loo soo gaabiyey sida TPU, waa nooc ka mid ah (AB) N-Block Lindy Pelmer. A waa culeys molika ah (1000-6000) polyester ama polythert, iyo b waa DICE atom 2-12 atom si toos ah loo toosiyo. Qaab dhismeedka kiimikada ee u dhexeeya qaybaha AB waa Diisocyate, oo badanaa ku xiran MDI.

Faylka polmoplastic polyanurethane waxay ku tiirsan tahay isku xirka hydrogen-ka-dhex-dhexaadka ah ama iskuxirka iskuxirka sahal ee ka dhexeysa silsiladaha macrooyinka, oo labadan qaab dhismeedka isku xirka iskuxirka ayaa la beddeli karaa ama yaraada heerkulka. Marka laga soo qaado ama xalka gobolka, ciidamada is-dhexgalka ah ayaa daciifa, iyo ka dib qaboojinta ama dareeraha xalka ah, xoogaga adag ee isku xidhka, soo celinta guryaha adag ee adag.

Qalabka loo yaqaan 'polyurethane themomplas'waxaa lagu dhex gelin karaa laba nooc: polyester iyo polystether, oo leh walxaha jilicsan ee jilicsan ama qarashka sadarka ah iyo cufnaanta qaraabada 1.10-1.25. Nooca polythertherthertherthery wuxuu leeyahay cufnaan hoose oo ka hooseeya nooca polyester. Heerkulka kala-guurka ee nooca polythertherthert waa 100.6-106.1, iyo nooca polyester waa 108.9-122.8 ℃. Heerkulka jilicsanaanta nooca polythertherthert iyo nooca polyester-ka ayaa ka yar -62 ℃, halka heerkulka hooseeya ee nooca loo yaqaan 'ether' ee adag uu ka fiican yahay kan nooca polyester.

Astaamaha aadka u fiica badan ee cudurka 'polyurethane themomers' waa mid aad u fiican iska caabbinta, caabbinta sare, xoog sare, tabar daran, iska caabbinta saliidda, iska caabbinta saliidda, iyo iska caabinta deegaanka, iyo iska caabinta deegaanka. Deegaanka ku hadla, xasilloonida hydrolysis ee rey polyder enders-ka badan ayaa aad uga badan tahay in noocyada polyester.

Qalabka taranka polyurethane waa sun aan sun lahayn oo ur, ku milma xabagta methyl ether, trralhexeramin, iyo isorthyffreran, iyo Chimety acetate, latatone, iyo acetone, iyo acetone, iyo acetone. Waxay soo bandhigaan dowlad aan midab lahayn oo hufan oo leh xasillooni badbaado oo wanaagsan.