Daim Ntawv Thov Polyurethane Catalysts Hauv Polyurethane Elastomers

Polyurethane elastomers yog cov ntaub ntawv siv tau ntau yam uas muaj cov khoom siv zoo heev xws li elasticity siab, hnav tsis kam thiab ruaj khov. Cov yam ntxwv no ua rau lawv haum rau ntau yam kev siv hauv kev lag luam, suav nrog cov khoom siv hauv tsheb, khau, sealants thiab coatings. Kev tsim cov polyurethane elastomers xav tau kev tswj hwm meej ntawm cov tshuaj lom neeg cuam tshuam, tshwj xeeb tshaj yog thaum tsim cov urethane sib txuas ntawm polyol thiab isocyanate. Polyurethane catalysts ua lub luag haujlwm tseem ceeb ntawm no.

Cov tshuaj polyurethane catalystsmuaj peev xwm tswj tau qhov ceev thiab kev ua haujlwm ntawm cov tshuaj polyurethane. Lawv cuam tshuam rau qhov sib npaug ntawm gelation (polyol-isocyanate) thiab foaming (dej-isocyanate) cov tshuaj tiv thaiv, uas txiav txim siab ncaj qha rau cov khoom kawg ntawm elastomer. Los ntawm kev xaiv cov catalyst zoo, cov chaw tsim khoom tuaj yeem ua kom zoo dua cov xwm txheej ua tiav thiab kho cov khoom siv lub cev ntawm elastomer kom ua tau raws li cov kev xav tau ntawm daim ntawv thov tshwj xeeb.

Ib qho tseem ceeb catalyst siv rau hauv kev tsim cov polyurethane elastomers yog MXC-37, tseem hu ua dimethylethanolamine ether (DMAEE).MXC-37 yog ib qho tshuaj amine catalyst uas tsis muaj pa phem, tsw qab tsawg uas siv dav hauv cov ntawv thov uas xav tau tsawg kawg nkaus amine emissions thiab kev ua haujlwm siab. Cov yam ntxwv tshwj xeeb ntawm MXC-37 ua rau nws tsim nyog rau ester-based stabilizer mos ua npuas ncauj, microcellular ua npuas ncauj, elastomers, tshuaj tiv thaiv kev txhaj tshuaj (RIM) thiab cov ntawv thov ntim khoom ua npuas ncauj.

MXC-37hauv Polyurethane Elastomers

MXC-37muaj ntau yam txiaj ntsig hauv kev tsim cov polyurethane elastomers. Nws yog ib qho catalyst ua haujlwm siab heev uas ua rau cov txheej txheem ua npuas dej zoo dua thiab zoo rau cov qauv uas muaj dej ntau. Nws cov dej num ua npuas dej siab txhawb nqa kev tsim cov npuas dej zoo thiab cov qauv cell sib xws, uas yog qhov tseem ceeb rau cov ntawv thov xws li microcellular foams thiab elastomers.

Hauv cov ntawv thov elastomer, MXC-37 ua kom muaj kev kho sai thiab sib xws, uas txhim kho cov khoom siv kho tshuab ntawm elastomer, xws li kev txhim kho lub zog tensile thiab kev ywj pheej. Qhov no ua rau nws yog qhov kev xaiv nrov rau kev tsim cov khoom siv elastomer ruaj khov uas xav tau kev ywj pheej siab, xws li cov foob, gaskets thiab cov khoom siv tsheb.

Ntxiv mus, MXC-37 muaj cov ntxhiab tsw tsawg thiab tsis muaj pa phem kuj yog qhov zoo dua, tshwj xeeb tshaj yog rau cov ntawv thov uas rhiab heev rau ntxhiab. Cov ntxhiab amine feem ntau cuam tshuam nrog cov tshuaj polyurethane catalysts raug txo qis thaum siv MXC-37, ua rau nws tsim nyog rau cov khoom uas kov cov neeg siv khoom ncaj qha, xws li khau thiab cov ntaub ntawv cushioning.

Cov Ntawv Thov Ntau Yam

Qhov ua tau ntau yam ntawm MXC-37 tsis yog tsuas yog siv rau cov elastomers xwb, tab sis kuj siv tau rau lwm cov polyurethane ua npuas ncauj. Hauv cov ntawv thov ua npuas ncauj me me, nws pab tsim cov npuas ncauj nrog cov qhov me me thiab sib npaug, uas ua rau cov khoom siv nqus tau qhov poob siab thiab cov khoom siv cushioning zoo dua. Hauv kev txhaj tshuaj molding (RIM), MXC-37 pab pwm cov khoom nyuaj sai sai, ua kom muaj txiaj ntsig ntau dua, thiab tsim cov khoom sib zog thiab ua haujlwm tau zoo rau kev siv tsheb thiab kev lag luam.

Ntxiv mus, MXC-37 siv tau rau hauv cov ntawv thov ntim khoom ua npuas ncauj, qhov twg nws cov dej num ua npuas ncauj siab ua kom muaj kev rwb thaiv tsev thiab kev tiv thaiv zoo. Cov tshuaj catalyst tsis muaj ntxhiab tsw thiab tsis muaj pa phem kuj pab tau rau cov ntawv thov no, txo cov kev cuam tshuam rau ib puag ncig thiab txhim kho cov xwm txheej hauv chaw ua haujlwm.

Xaus lus

Hauv kev xaus, cov tshuaj polyurethane catalysts xws liMXC-37 (DMAEE)yog cov khoom tseem ceeb hauv kev tsim cov polyurethane elastomers thiab lwm yam ua npuas ncauj. Lawv lub peev xwm los tswj cov kev ua haujlwm, txhim kho qhov ua npuas ncauj zoo, thiab txo cov pa phem ua rau lawv tsis tseem ceeb hauv ntau yam kev siv hauv kev lag luam. MXC-37, nrog nws cov dej num ua npuas ncauj siab thiab cov khoom tso pa phem tsawg, muab cov chaw tsim khoom ib qho kev daws teeb meem txhim khu kev qha rau kev tsim cov khoom polyurethane ua tau zoo, los ntawm elastomers mus rau microcellular ua npuas ncauj thiab cov khoom ntim ua npuas ncauj ruaj khov.