MXC-B20, tseem hu ua bismuth carboxylate catalyst MB20, yog ib qho polyurethane catalyst muaj zog siv los txhim kho cov tshuaj tiv thaiv polyurethane thiab kev kho. Ua ib qho bismuth-based carboxylate, MXC-B20 ua haujlwm ua ib qhocov tshuaj ua kom cov hlau cocatalystuas feem ntau yog ua ke nrog tertiary amines. Qhov kev sib xyaw ua ke no ua rau kom kho tau sai dua, ua rau nws yog lwm txoj hauv kev zoo rau cov tshuaj catalysts uas siv tin, uas feem ntau siv rau hauv cov blocks uas yoog tau, cov ua npuas dej uas muaj zog heev, cov tshuaj tsuag, cov microporous systems, thiab cov ntawv thov ua npuas dej khov.
Cov txiaj ntsig ntawmMXC-B20
Cov tshuaj catalyst MXC-B20 coj ntau yam zoo rau kev lag luam polyurethane:
1. Kev Ua Haujlwm Zoo Dua: MXC-B20 yog ib qho tshuaj polyurethane lossis gelled hlau uas muaj zog uas ncua qhov kev sib sau ua ke ntawm cov viscosity pem hauv ntej ntawm cov koob tshuaj qis dua, tab sis txhawb nqa kev kho kom zoo dua tom qab. Qhov cuam tshuam qeeb no tso cai rau kev tswj hwm zoo dua ntawm cov txheej txheem tshuaj tiv thaiv thaum ua kom ntseeg tau tias cov khoom kawg zoo heev ntawm cov ua npuas ncauj.
2. Cov Khoom Uas Zoo Rau Ib Puag Ncig: Tsis muaj cov hlau phom sij xws li mercury, lead, thiab dibutyltin, MXC-B20 muaj kev nyab xeeb dua thiab zoo rau ib puag ncig piv rau ntau cov tshuaj catalysts hlau ib txwm muaj. Nws kuj tsis tshua muaj kev hloov pauv thiab tsw ntxhiab, ua rau muaj kev nyab xeeb dua thiab zoo siab dua rau ib puag ncig ua haujlwm.
3. Kev Sib Xws: Cov tshuaj catalyst no sib xws nrog ob qho tib si polyols ua npuas ncauj tawv thiab mos, ua rau nws siv tau rau ntau hom kev ua npuas ncauj sib txawv, ua kom ntseeg tau tias kev sib xyaw ua ke zoo rau hauv cov txheej txheem tsim khoom uas twb muaj lawm.
Cov ntawv thov ntawm MXC-B20
MXC-B20 ua lub luag haujlwm tseem ceeb hauv kev ua kom cov tshuaj tiv thaiv sai dua qhov twg lub sijhawm kho tsis txaus nrog cov tshuaj amine catalysts xwb. Kev sib xyaw ua ke ntawm MXC-B20 nrog cov tshuaj amine catalyst ua rau lub sijhawm teb sai dua thiab cov khoom ua npuas dej zoo dua. Qhov no ua rau nws yog qhov kev xaiv zoo rau ntau yam kev siv, xws li:
- Cov Ua Npuas Ncauj Rigid Uas Muaj Qhov Ceev Heev: Hauv kev tsim cov khoom siv uas xav tau kev ruaj khov thiab lub zog, MXC-B20 ua kom cov khoom khov sai yam tsis muaj kev cuam tshuam rau kev ua npuas ncauj zoo.
- Kev Rwb Thaiv Phab Ntsa Ruaj Khoov: Cov tshuaj catalyst ua kom cov ua npuas ncauj ruaj khov uas siv hauv kev rwb thaiv tsev kho sai dua, muab kev ruaj khov thermal thiab lub zog ntawm cov qauv.
- Kev Txhaj Tshuaj Tiv Thaiv (RIM): MXC-B20 txhim kho cov txheej txheem tshuaj tiv thaiv hauv RIM daim ntawv thov, ua rau lub sijhawm voj voog sai dua thiab cov khoom pwm muaj zog dua.
- Cov Ua Npuas Ncauj Monolithic Microporous: Hauv cov ntawv thov tshwj xeeb uas qhov microporosity yog qhov tseem ceeb, MXC-B20 ua kom muaj cov qauv ua npuas ncauj thiab zoo sib xws.
Lub peev xwm ntawm MXC-B20 los txhawb cov khoom ua npuas dej zoo heev thaum zam kev siv cov hlau tsis zoo ua rau nws yog ib qho tshuaj muaj txiaj ntsig zoo hauv kev tsim cov polyurethane niaj hnub no.
Lub sijhawm tshaj tawm: Cuaj hlis-11-2024