Ua npuas dej polyurethane siv dav hauv ntau yam lag luam vim nws muaj peev xwm hloov pauv tau, muaj peev xwm rwb thaiv tsev thiab muaj cov yam ntxwv ntawm cov qauv. Cov yam ntxwv ntawm cov npuas dej tuaj yeem sib txawv ntau nyob ntawm lawv cov qauv cell, uas tuaj yeem faib ua cov npuas dej qhib lossis cov npuas dej kaw. Kev xaiv cov tshuaj catalysts siv hauv kev tsim cov npuas dej polyurethane ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab cov yam ntxwv ntawm cov npuas dej, suav nrog nws qhov ceev, kev ywj pheej, thiab tsw. Hauv tsab xov xwm no, peb yuav tshawb nrhiav qhov sib txawv ntawm cov npuas dej qhib thiab cov npuas dej kaw thiab tshuaj xyuas seb cov tshuaj catalysts polyurethane tshwj xeeb xws li MXC-T thiab MXC-37 tuaj yeem siv li cas hauv kev tsim khoom.
Nkag Siab Txog Cov Ua Npuas Qhib-Cell thiab Cov Ua Npuas Kaw-Cell
Ua Npuas Ncauj Qhib-Cell
Ua npuas dej qhib yog tus cwj pwm los ntawm cov hlwb ua npuas dej txuas rau ib leeg kom tsim cov qauv spongy. Cov ua npuas dej no feem ntau sib dua, yoog tau yooj yim dua, thiab muaj qhov ntau dua, ua rau muaj kev nqus suab zoo heev thiab cov khoom rwb thaiv suab. Ua npuas dej qhib feem ntau siv rau hauv cov ntawv thov uas xav tau kev txhawb nqa, xws li rooj tog, rooj zaum hauv tsheb, thiab kev tiv thaiv suab. Nws cov yam ntxwv tseem ceeb yog qhov ceev tsawg, yooj ywm heev, suab zoo heev thiab kev rwb thaiv cua sov, thiab huab cua zoo permeability.
Ua Npuas Ncauj Kaw
Qhov sib txawv, cov qauv ntawm cov ua npuas ncauj kaw yog nruj thiab kaw, tiv thaiv kev ntws ntawm huab cua lossis dej. Cov ua npuas ncauj yog denser, stiffer thiab zoo dua rwb thaiv tsev tiv thaiv dej noo. Cov ua npuas ncauj kaw yog qhov zoo tagnrho rau cov ntawv thov uas xav tau kev ruaj khov thiab tiv thaiv dej, xws li kev rwb thaiv tsev, tshuaj tsuag ua npuas ncauj rau cov tsev txuag hluav taws xob, thiab cov dashboards tsheb. Nws cov yam ntxwv tseem ceeb yog qhov ceev dua, kev ruaj khov dua, cov khoom rwb thaiv tsev zoo heev (kev rwb thaiv tsev kub, tiv thaiv dej noo), tiv thaiv dej thiab ruaj khov.
Lub Luag Haujlwm ntawm Polyurethane Catalysts hauv Kev Tsim Ua Npuas Ncauj
Cov tshuaj polyurethane catalysts ua lub luag haujlwm tseem ceeb hauv kev tsim cov ua npuas ncauj los ntawm kev pab txhawb kev sib xyaw tshuaj ntawm polyols (feem ntau yog los ntawm cov nroj tsuag lossis cov roj av) thiab isocyanates los tsim cov polyurethanes. Nyob ntawm cov yam ntxwv ua npuas ncauj xav tau, xws li qhov ceev, kev ywj pheej, thiab tsw, cov tshuaj catalysts sib txawv raug siv.
Cov tshuaj catalysts xws li MXC-T thiab MXC-37 muaj cov txiaj ntsig tshwj xeeb rau kev tsim cov ua npuas ncauj qhib thiab kaw. Cia peb saib ze dua ntawm cov cheeb tsam siv thiab cov txiaj ntsig ntawm ob qho tshuaj catalysts no.
MXC-T (CAS 2212-32-0)hauv Kev Tsim Ua Npuas Ncauj
MXC-T, tseem hu ua TMAEA, yog ib qho tshuaj amine catalyst uas ua haujlwm tau zoo, tsis muaj pa phem uas muab cov kab sib xyaw ua ke zoo thiab yog ib qho kev xaiv dav rau kev tsim ntau yam polyurethane ua npuas ncauj. Ib qho kab sib xyaw ua ke zoo tso cai rau kev tswj hwm kev nthuav dav ntawm cov npuas ncauj, uas yog qhov tseem ceeb kom ntseeg tau tias qhov zoo thiab kev ua haujlwm ntawm cov npuas ncauj zoo sib xws.
Daim Ntawv Thov Hauv Cov Npuas Qhib-Cell thiab Cov Npuas Kaw-Cell
MXC-T muaj txiaj ntsig zoo rau cov ntawv thov uas xav tau cov ntxhiab tsw qab tsawg thiab ua haujlwm catalytic zoo. Nws cov haujlwm catalytic txhawb nqa kev sib xyaw ntawm urea (dej-isocyanate), uas feem ntau cuam tshuam nrog cov polymer matrix vim nws cov hydroxyl pawg nquag. Qhov no yog vim li cas MXC-T feem ntau siv rau hauv:
- Tshuaj tsuag ua npuas ncauj rwb thaiv tsevMXC-T ua kom ntseeg tau tias cov ua npuas rwb thaiv tsev muaj cov qauv zoo sib xws nrog tsawg kawg nkaus tsw, ua rau nws zoo tagnrho rau kev siv rwb thaiv tsev nyob thiab kev lag luam.
- Cov Dashboards TshebMXC-T muaj ntxhiab tsw qab tsawg thiab cov kab ua haujlwm du ua rau nws yog qhov kev xaiv zoo tshaj plaws hauv kev siv ua npuas ncauj hauv tsheb, xws li rau cov dashboards thiab lwm yam khoom sab hauv.
MXC-37 (CAS 1704-62-7)hauv Kev Tsim Ua Npuas Ncauj
MXC-37, lossis DMAEE, yog lwm yam tshuaj catalyst uas tsis muaj pa phem, tsis muaj ntxhiab tsw qab thiab muaj kev ua npuas dej ntau. Nws yog qhov tsim nyog rau cov qauv uas xav tau cov dej ntau thiab feem ntau siv rau hauv kev tsim cov dej ua npuas dej uas tsis muaj zog (SPF). Cov tshuaj catalyst no zoo tagnrho rau kev tsim cov npuas dej uas muaj qhov dej ntau thiab muaj cov qauv cell sib xws, ua rau nws muaj txiaj ntsig zoo rau ntau yam kev siv uas xav tau cov yam ntxwv zoo li no.
Daim Ntawv Thov Hauv Cov Npuas Qhib-Cell thiab Cov Npuas Kaw-Cell
MXC-37 paub txog nws lub peev xwm los txo cov ntxhiab tsw amine hauv cov polyurethane ua npuas ncauj, ua rau nws yog qhov kev xaiv dav rau cov chaw rhiab heev xws li:
- Cov Tshuaj Tsuag Uas Muaj Qhov Ceev Tsawg (SPF)MXC-37 siv dav hauv cov ntawv thov ua npuas dej tsawg uas muaj dej ntau, thiab tsis tas yuav muaj ntxhiab ntau. Qhov no suav nrog kev siv rau hauv cov khoom siv rwb thaiv tsev, ru tsev, thiab phab ntsa.
- Ua Npuas Ncauj Microcellular: MXC-37 siv tau los tsim cov ua npuas dej me me, feem ntau siv rau hauv kev ntim khoom, cov khoom siv hauv tsheb thiab lwm yam kev siv uas xav tau cov ua npuas dej sib dua thiab yoog tau, nrog rau cov ua npuas dej mos thiab elastomers uas qhov yooj ywm thiab ruaj khov yog qhov tseem ceeb.
- Cov Khoom Siv Ua Npuas Ncauj RigidHauv cov ntawv thov ntim khoom, tshwj xeeb tshaj yog qhov twg xav tau cov khoom sib dua thiab cov khoom rwb thaiv tsev, MXC-37 muaj txiaj ntsig zoo hauv kev tswj cov npuas dej ceev thiab txhim kho cov qauv ntawm npuas dej.
MXC-37 siv tau ua tus catalyst tseem ceeb lossis ua tus co-catalyst, tshwj xeeb tshaj yog thaum muab sib xyaw nrog lwm cov catalysts xws li BDMAEE, los txhim kho qhov zoo ntawm cov ua npuas ncauj thiab txo qhov xav tau ntau dua ntawm lwm cov catalysts.
Xaus lus
Cov tshuaj polyurethane catalystsxws li MXC-T thiab MXC-37 yog qhov tseem ceeb rau kev tsim cov ua npuas qhib - thiab kaw-cell, pab cov chaw tsim khoom ua tiav cov yam ntxwv ua npuas xav tau thaum txo cov khoom tsis zoo xws li ntxhiab tsw thiab pa phem. Los ntawm kev xaiv cov tshuaj catalyst zoo rau hom ua npuas tshwj xeeb, cov chaw tsim khoom tuaj yeem txhim kho kev ua tau zoo thiab kev ruaj khov ntawm lawv cov khoom.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-10-2024