Dab tsi yog khoom siv?
Cov ntsiab lus yooj yim ntawm PU Khoom Siv
PU sawv ntsug rau polyurethane, cov khoom siv polymer uas tau siv dav hauv ntau yam kev lag luam. Polyurethane yog tsim los ntawm kev siv tshuaj lom neeg nruab nrab ntawm oneocyanate thiab polyol, thiab muaj ntau yam ntawm lub cev thiab tshuaj. Vim tias PU tuaj yeem muaj nws cov peev txheej tau hloov kho nws txoj kev muaj pes tsawg leeg, nws yog siv rau hauv cov ntawv thov, los ntawm cov khoom siv tau rau cov khoom siv.
Kev faib tawm thiab cov khoom ntawm PU
Polyurethane tuaj yeem raug cais rau ntau hom ntawv, suav nrog cov ua npuas ncauj, ua npuas ncauj, ntxiv cov roj av, roj hmab thiab cov nplaum. Cov ua npuas ncauj tsis muaj zog siv rau rwb thaiv tsev thiab cov vaj huam sib luag hauv tsev, siv cov rooj tog zaum thiab cov rooj zaum tsheb thiab chaw txaj. Elastomers, ntawm qhov tod tes, pom cov roj hmab zoo li elasticity thiab yog siv rau kev khau, log tsheb thiab lwm yam. Vim nws cov elasticity zoo, puas ua tsis tau zoo, roj ua tsis kam, PU khoom pov thawj kev ua tau zoo ua tau zoo hauv cov ntawv sib txawv.
Daim ntawv thov PU hauv ntau yam kev lag luam
Polyurethane muaj ntau cov kev siv hauv ntau thaj teb. Piv txwv li, hauv kev lag luam textile, PU feem ntau siv nyob rau hauv kev tsim tawv dag, uas muaj cov ntawv nyeem zoo ib yam li tawv tab sis yooj yim los tswj. Hauv kev tsim kho kev tsim kho, PU ua npuas ncauj yog siv los ua cov khoom siv rwb thaiv tsev zoo, nyiam rau nws cov thermal tsis zoo thiab noo noo tsis kam. Nyob rau hauv kev lag luam automotive, pu cov ntaub ntawv siv los tsim cov khoom ua npuas thiab sab hauv cov chaw sab hauv thiab sab hauv thiab ua kom zoo.
Ib puag ncig kev ua phooj ywg thiab kev ruaj khov ntawm pu khoom
Raws li kev paub txog ib puag ncig nce ntxiv, cov sustainability ntawm pu cov ntaub ntawv tau dhau los ua kev txhawj xeeb loj. Kev lig kev cai, qee cov tshuaj raug mob yuav siv tau pu, tab sis nyob rau hauv cov txheej txheem ua haujlwm tsis ntev los no xws li cov ntaub ntawv rawethaltes dej ntxiv. Cov ntaub ntawv sau ua PU tshiab tsis tsuas yog txo qhov cuam tshuam rau ib puag ncig, tab sis kuj txhim kho cov khoom muaj kev nyab xeeb thiab kev ruaj ntseg.
Lub ntsiab
Dab tsi yog khoom siv? Nws yog ib qho ntau yam, kev ua haujlwm siab polymer cov khoom uas tau siv dav hauv ntau yam kev lag luam. Txawm hais tias nyob rau hauv cov khaub ncaws, kev tsim kho, kev tiv thaiv tsheb, lossis ib puag ncig kev tiv thaiv, PU yog kev nyiam rau nws cov khoom lag luam ntawm lub cev zoo heev. Nrog kev nce qib ntawm thev naus laus zis thiab kev txhim kho ntawm cov kev tiv thaiv ib puag ncig, daim ntawv thov cov khoom siv Pu yuav txuas ntxiv thiab txhim kho.