Dab tsi yog qhovPolyether thiab TDI Polyurethane Prepolymer?
Polyurethane prepolymer yog intermediates tsim los ntawm ib nrab cov tshuaj tiv thaiv ntawm polyols nrog diisocyanates. Tshwj xeeb, Polyether polyols ua ke nrog TDI tshwm sim hauv polyurethane prepolymer uas muaj nuj nqis heev rau nws cov khoom tshwj xeeb. Polyether-based prepolymers paub txog lawv qhov yooj yim, hydrolytic stability, thiab kev ua haujlwm kub qis, thaum TDI pab txhawb rau cov khoom siv zog thiab ua haujlwm rau kev puas tsuaj thiab tshuaj lom neeg.
Dab tsi yog cov yam ntxwv ntawm polyether TDI prepolymer?
Polyether polyols muab kev yooj yim thiab elasticity rau prepolymer, ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau cov ntaub ntawv los tiv thaiv kev ntxhov siab thiab deformation tsis poob lawv cov duab lossis kev ua tau zoo, zoo siv hauv kev tsim cov ntsaws ruaj ruaj, gaskets, thiab cov khoom ua npuas ncauj yooj yim.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm Polyether-raws li prepolymer yog lawv cov tsis kam rau hydrolysis. Qhov no txhais tau tias lawv tswj hwm lawv txoj kev ncaj ncees thiab kev ua tau zoo txawm tias nyob rau hauv qhov chaw ntub dej lossis qhov chaw ntub dej, ua rau lawv tsim nyog siv rau hauv marine, tsheb, thiab kev siv sab nraum zoov.
Lawv txawm nyob rau hauv qhov txias txias, polyether thiab TDI polyurethane prepolymers, nyob twj ywm saj zawg zog thiab ruaj khov, ua tau zoo heev ntawm qhov kub thiab txias. uas yog ib qho tseem ceeb rau kev siv nyob rau hauv cov huab cua txias los yog cov tub yees ib puag ncig.
TDI txhawb nqa cov tshuaj tiv thaiv ntawm prepolymer. Cov khoom tsim los ntawm cov ntaub ntawv no tuaj yeem tiv taus cov roj, roj, thiab ntau yam tshuaj yam tsis muaj degrading. Tsis tas li ntawd, cov khoom siv kev puas tsuaj ua kom lub neej ntev thiab ua haujlwm ntev, ua rau nws tsim nyog rau kev thov kev lag luam.
Polyether thiab TDI polyurethane prepolymers sawv cev rau kev nce qib tseem ceeb hauv cov khoom siv science.Lawv kev siv dav hauv ntau qhov kev lag luam qhia lawv qhov tseem ceeb thiab muaj peev xwm rau kev tsim kho tshiab yav tom ntej. Raws li thev naus laus zis nce qib, cov prepolymers no yuav tsis muaj qhov xav tau ua lub luag haujlwm tseem ceeb hauv kev tsim cov ntaub ntawv tag kis, muab cov kev daws teeb meem uas ua tau raws li qhov xav tau ntawm kev lag luam niaj hnub no.