4,4'-Diphenylmethane Diisocyanate yog dab tsi?
Lub ntsiab siv ntawm4.4′-MDI (methylenediphenyl diisocyanate)yog nyob rau hauv zus tau tej cov rigid polyurethane ua npuas ncauj, lug siv raws li rwb thaiv tsev nyob rau hauv cov khoom siv tub yees thiab kev tsim kho kev lag luam.
Thermal rwb thaiv tsev Properties
Rigid polyurethane ua npuas ncauj ua nrog 4,4'-MDI muaj cov thermal rwb thaiv tsev zoo heev, txo qis zog noj. Nws yog siv thoob plaws ntiaj teb nyob rau hauv yuav luag txhua lub tub yees thiab lub freezers kom muaj kev ruaj khov ntawm qhov kub thiab txias.
Zog Efficiency hauv Kev Tsim Kho
Hauv kev lag luam hauv tsev, 4,4′-MDI-based rigid foam yog siv rau insulating phab ntsa, ru tsev, thiab cov kav dej, ua kom zoo zog thiab txo cov cua sov thiab cua txias.
Environmental Trends
Nrog rau kev nce thoob ntiaj teb cov qauv rau kev txuag hluav taws xob thiab kev ruaj ntseg, kev siv cov polyurethane ua npuas ncauj nruj nruj raws li cov qauv hauv tsev ntsuab, txhawb cov tuam txhab hauv kev ua kom tau raws li cov hom phiaj kev ruaj ntseg.
Cov ntawv thov ntxiv
Rigid ua npuas ncauj ua los ntawm 4,4′-MDI kuj tseem siv rau hauv cov rwb thaiv tsev, cov yeeb nkab rwb thaiv tsev, cov ntaub ntawv vov tsev, thiab lwm qhov chaw, muab cov kav ntev, dej tsis kam, thiab lub zog ntawm cov qauv.
Yav tom ntej Outlook
Vim qhov kev xav tau loj zuj zus ntxiv rau kev txuag hluav taws xob thiab kev daws teeb meem hauv eco, kev siv 4,4'-MDI hauv cov ntaub ntawv rwb thaiv tsev yuav tsum txuas ntxiv nthuav dav, ua qhov tseem ceeb hauv kev lag luam tub yees thiab kev tsim kho.