Kev Taw Qhia
Hauv kev lag luam rwb thaiv tsev thiab kev tsim kho niaj hnub no, cov ua npuas ncauj polyurethane kaw-cell tau dhau los ua qhov kev daws teeb meem tseem ceeb vim nws qhov kev tiv taus cua sov siab, cov khoom tiv thaiv dej noo, thiab lub zog ntawm cov qauv. Hauv lub hauv paus ntawm cov txheej txheem ua npuas ncauj kaw-cell ua haujlwm siab yog cov tshuaj polyurethane catalysts, uas tswj cov tshuaj tiv thaiv ntawm polyols thiab isocyanates, txiav txim siab cov qauv ua npuas ncauj, qhov ceev ntawm cov tshuaj tiv thaiv, thiab kev ua tau zoo kawg. Ua tus kws tshaj lij tsim cov tshuaj polyurethane catalysts, peb muab ntau yam kev daws teeb meem uas tsim rau cov ntawv thov ua npuas ncauj kaw-cell.
Ua Npuas Ncauj Polyurethane Kaw-Cell Yog Dab Tsi?
Ua npuas polyurethane kaw-cell yog cov khoom siv rwb thaiv tsev uas feem ntau ntawm cov cell raug kaw thiab puv nrog cov neeg ua kom cua tshuab. Piv rau cov ua npuas qhib-cell, ua npuas kaw-cell yog qhov ntom dua, muaj zog dua, thiab muaj qhov nqus dej qis dua. Nws siv dav hauv:
Kev rwb thaiv tsev thiab kev tsim kho
Kev txias thiab kev thauj khoom txias
Kev rwb thaiv tsev rau cov khoom siv hauv kev lag luam
Kev rwb thaiv tsev ntawm cov kav dej thiab lub tank
Cov tshuab txau polyurethane ua npuas ncauj (SPF)
Lub Luag Haujlwm ntawm Catalysts hauv Kev Tsim Ua Npuas Ncauj Kaw
Cov tshuaj polyurethane catalysts yog cov khoom tseem ceeb hauv cov tshuab ua npuas ncauj kaw. Lawv ua kom nrawm thiab sib npaug qhov kev sib xyaw ua ke (ntawm isocyanate thiab polyol) thiab qhov kev sib xyaw ua ke (ntawm isocyanate thiab dej lossis cov neeg sawv cev), cuam tshuam ncaj qha rau:
Cov qauv ntawm cov cell ua npuas ncauj thiab kev sib xws
Cov qauv tshuaj tiv thaiv thiab lub sijhawm ua haujlwm
Kev ruaj khov ntawm qhov ntev thiab kev nplaum
Tus nqi rwb thaiv tsev ua npuas ncauj kawg (R-tus nqi)
Kev xaiv cov tshuaj catalyst ua ke yog qhov tseem ceeb heev kom ua tiav qhov profile nce siab, lub sijhawm kho, thiab lub zog compressive—tshwj xeeb tshaj yog thaum siv HFO-based, dej-based, lossis cov tshuab sib xyaw ua ke.
Cov Tshuaj Polyurethane Catalysts Pom Zoo Rau Cov Ua Npuas Ncauj Kaw
Peb muab ntau yam amine thiab cov hlau-raws li catalysts tshwj xeeb tsim rau cov ntawv thov polyurethane ua npuas ncauj, kaw-cell:
MXC-T12 (Dibutyltin Dilaurate): Ib qho tshuaj catalyst organotin ua haujlwm tau zoo heev uas txhawb nqa cov tshuaj gelling, txhim kho qhov tawv ntawm cov ua npuas ncauj thiab lub zog kho tshuab kawg. Zoo tagnrho rau cov khoom siv rwb thaiv tsev thiab cov khoom siv hluav taws xob.
MXC-B20 (Bismuth-based Catalyst): Ib qho kev xaiv uas tsis muaj tshuaj lom, tsis muaj pa phem rau cov catalysts tin. Ua haujlwm ua tus catalyst nrog amines los txhawb kev ncua sijhawm pem hauv ntej thiab kev kho kom zoo tom qab. Zoo heev rau cov tshuaj tsuag ua npuas ncauj thiab cov kab ke vaj huam sib luag tas mus li.
MXC-15 (Potassium Octanoate)Ib qho tshuaj catalyst isocyanurate trimerization uas muaj zog heev rau PIR systems. Nws txhim kho qhov ruaj khov ntawm qhov loj me thiab kev tiv thaiv hluav taws hauv cov ua npuas ncauj kaw.
MXC-37 (DMAEE): Ib qho tshuaj amine uas tsis muaj ntxhiab tsw qab siv los ua kom muaj kev ua haujlwm ntau dua thiab txo cov pa phem. Haum rau cov khoom siv txias thiab cov khoom ntim khoom uas tswj tau ntxhiab tsw yog qhov tseem ceeb.
MXC-TMA: Ib qho catalyst trimerization uas ua rau kom nce thiab ntws sib npaug, siv dav hauv cov qauv siab-viscosity xws li cov laug cam ua npuas ncauj thiab cov vaj huam sib luag txuas ntxiv.
Cov Kev Siv Peb Cov Catalysts Hauv Cov Npuas Kaw-Cell
Peb cov polyurethane catalysts siv dav hauv cov kab ke ua npuas ncauj kaw hauv qab no:
1. Tshuaj Tsuag Ua Npuas Ncauj (SPF): Peb cov tshuaj catalysts pab tswj qhov ceev ntawm kev nce thiab kev kho ntawm qhov chaw kom ua tiav kev siv du thiab muaj zog lo rau cov khoom siv.
2. PIR thiab PUR Panels: Siv rau hauv kev tsim cov board txuas ntxiv thiab tsis txuas ntxiv rau kev rwb thaiv tsev.
3. Kev Tso Txias thiab Kev Khaws Cia Khoom Txias: Peb cov tshuaj catalysts pab txhawb rau cov qauv cell zoo thiab kev ruaj khov mus sij hawm ntev.
4. Kev rwb thaiv tsev ntawm cov yeeb nkab thiab lub tank: Muab kev kho sai thiab kev ruaj khov thermal hauv cov av noo siab lossis cov chaw kub sib txawv.
5. Cov Tshuab Ua Npuas Ncauj Thaiv: Haum rau kev ntim khoom thiab kev thauj mus los rwb thaiv tsev.
Vim li cas ho xaiv peb?
Ua ib lub chaw tsim khoom siv polyurethane catalyst, peb muab:
Cov qauv tshuaj catalyst raws li koj lub tshuab ua npuas ncauj thiab kev xav tau ua tiav
Kev txhawb nqa kev txawj ntse thiab kev qhia txog kev tsim cov tshuaj los ntawm cov kws tshuaj uas muaj kev paub dhau los
Kev muab khoom txhim khu kev qha nrog kev zoo sib xws thiab kev sib tw nqi
Ua raws li cov qauv ib puag ncig thoob ntiaj teb
Xaus lus
Cov tshuaj polyurethane catalystsyog qhov tseem ceeb rau kev tsim cov ua npuas ncauj kaw-cell kom ua tiav. Txawm hais tias koj tab tom tsim cov ua npuas ncauj tsuag, vaj huam sib luag, lossis cov khoom siv tub yees, kev xaiv lub kaw lus catalyst zoo yog qhov tseem ceeb rau kev ua tiav cov khoom lag luam zoo, ua haujlwm tau zoo. Tiv tauj peb hnub no kom paub ntau ntxiv txog seb peb cov catalysts tuaj yeem txhim kho koj cov qauv ua npuas ncauj kaw-cell li cas.
Lub sijhawm tshaj tawm: Lub Rau Hli-04-2025