Dab tsi yog Lwm Qhov Sib Txawv NtawmPolyether TPU thiab Polyester TPU ?
Qhov txawv ntawmHydrolysis stability
Polyester TPU's hydrolysis kuj tuaj yeem txhim kho los ntawm kev tiv thaiv nws nrog carbodiimide. Polyether ester TPU thiab polyether TPU nthuav tawm qhov zoo tshaj plaws hydrolysis tsis kam ntawm qhov kub thiab txias.
Polyesters yog nquag mus rau hydrolytic cleavage thaum raug ya raws, thiab cov kua qaub uas tsim tau catalyze ntxiv hydrolysis. Hom polyester cuam tshuam rau elastomer lub cev muaj zog thiab hydrolysis tsis kam. Ntev methylene chains hauv polyester diols txhim kho hydrolysis tsis kam. Ib yam li ntawd, polyesters nrog tsawg pab pawg ester muaj kev tiv thaiv hydrolysis zoo dua. Kev siv cov saw ntev diacids hauv polyester synthesis ua rau muaj kev tiv thaiv hydrolysis zoo dua li cov saw hlau luv luv.
Microbial ResistanceQhov txawv
Polyester-raws li mos TPU yog raug rau microbial nres thaum nyob rau hauv kev sib cuag nrog cov av noo rau lub sij hawm ntev. Polyether-raws li mos lossis tawv TPU feem ntau tiv thaiv microbial nres.
Thiab covNqe kuj txawv
Polyether TPU yog kim dua polyester TPU vim muaj ntau yam:
1. Zoo heev hydrolysis tsis kam, tsis tshua muaj kub ua haujlwm, thiab flex kuj.
2. Cov nqi ntau lawm rau polyether polyols piv rau polyester polyols.
3. Ntau cov txheej txheem ntau lawm rau polyether polyols.
4. Kev tswj hwm nruj dua li cov xwm txheej tsim khoom thaum lub sijhawm polyether polyol synthesis.
5. Cov khoom siv siab dua thiab xav tau kev tiv thaiv kev tiv thaiv thaum lub sij hawm polyether polyol ntau lawm.
Peb Beiqiao tuaj yeem muab ob qho tib si polyester TPU thiab polyether TPU.
Txhua yam xav tau rau TPU thiab xav paub cov ntaub ntawv, thov hu rau peb.