Kev lag luam polyurethane tab tom hloov pauv mus rau kev coj ua kom ruaj khov dua, thiab kev siv cov tshuaj hydrofluoroolefin (HFO) yog qhov tseem ceeb ntawm qhov kev hloov pauv no. Lub kaw lus HFO yog ib qho thev naus laus zis siab heev uas siv cov tshuaj HFO los tsim cov polyurethane ua npuas dej nrog kev ua tau zoo dua thiab cov txiaj ntsig ib puag ncig. Raws li cov tshuaj ib txwm muaj nrog lub peev xwm ua kom sov thoob ntiaj teb (GWP) raug tshem tawm vim yog cov cai ib puag ncig, cov kab ke HFO-based muab lwm txoj hauv kev ntsuab dua nrog lawv cov GWP qis heev.
HFO yog dab tsi?
Hydrofluoroolefins (HFOs) yog ib pawg ntawm cov tshuaj uas ua haujlwm ua cov neeg sawv cev tshuab plaub tiam hauv kev tsim cov polyurethane ua npuas ncauj. Lawv tau tsim tshwj xeeb los hloov cov tiam dhau los ntawm cov neeg sawv cev tshuab xws li hydrochlorofluorocarbons (HCFCs) thiab hydrofluorocarbons (HFCs), uas ua rau muaj kev puas tsuaj loj heev rau ozone thiab kev sov ntawm lub ntiaj teb. Cov neeg sawv cev tshuab HFO, qhov sib piv, muaj qhov cuam tshuam me ntsis rau kev sov ntawm lub ntiaj teb thaum tswj hwm cov khoom rwb thaiv tsev zoo heev thiab cov khoom siv hauv cov ntawv thov ua npuas ncauj.
Cov txiaj ntsig ntawm HFO Blowing Agents hauv Polyurethane Foams
- GWP qis heevCov tshuaj ua npuas HFO muaj GWP qis heev, ua rau cov polyurethane ua npuas tsis zoo rau ib puag ncig. Lawv muab lwm txoj hauv kev rau kev lag luam uas xav txo lawv cov pa roj carbon dioxide.
- Kev Siv Hluav Taws Xob ZooCov ua npuas dej polyurethane uas tsim los ntawm cov neeg sawv cev HFO ua rau muaj cov khoom rwb thaiv tsev zoo heev, pab txhawb kev txuag hluav taws xob hauv ntau yam kev siv, suav nrog kev tsim kho, tub yees, thiab kev lag luam tsheb.
- Kev Ua Raws CaiNrog rau kev tshem tawm cov tshuaj uas muaj GWP siab raws li cov lus pom zoo thoob ntiaj teb xws li Montreal Protocol thiab Kigali Amendment, kev siv cov tshuaj HFO ua kom ntseeg tau tias ua raws li cov cai ib puag ncig thaum tswj hwm cov qauv kev ua tau zoo.
- Cov Ntawv Thov Ntau YamCov tshuab HFO siv tau rau ntau yam kev siv ua npuas ncauj, suav nrog cov tshuaj tsuag polyurethane ua npuas ncauj (SPF), cov vaj huam sib luag ruaj khov, cov khoom siv hluav taws xob, thiab cov npuas ncauj ywj pheej. Qhov ua tau ntau yam ntawm cov neeg sawv cev HFO ua rau lawv haum rau ntau yam kev siv hauv kev lag luam.
Cov tshuaj Polyurethane Catalysts rau HFO Systems
Kev tsim cov polyurethane ua npuas dej siv cov neeg sawv cev HFO xav tau cov catalysts tshwj xeeb uas ua kom muaj kev ua haujlwm zoo thiab ua npuas dej zoo. Ntawm Mingxu Chem, peb tsim cov catalysts polyurethane zoo, suav nrogMXC-B20 thiabMXC-70, uas sib xws nrog HFO systems. Cov catalysts no yog tsim los txhim kho kev ua npuas dej, txhim kho lub sijhawm kho, thiab ua kom zoo dua cov qauv ua npuas dej rau ntau yam kev siv.
Xaus lus
Kev hloov mus rau HFO systems yog ib kauj ruam tseem ceeb rau kev txo qhov cuam tshuam rau ib puag ncig ntawm polyurethane foams. Los ntawm kev siv cov neeg sawv cev HFO blowing thiab cov catalysts sib xws xws li MXC-B20 thiab MXC-70, cov lag luam tuaj yeem ua tiav ob qho tib si kev ua raws li txoj cai thiab kev ua tau zoo dua ntawm cov foams thaum tseem pab txhawb rau kev siv zog thoob ntiaj teb.
Yog tias koj muaj kev txaus siab rau nws, thov hu rau peb kom paub ntxivinfo@mingxuchem.com.
Lub sijhawm tshaj tawm: Lub Ob Hlis-06-2025