Xyoo tas los no, cov tshuaj tsuag Polyurethane Foam (SPF) ru tsev tau nrov zuj zus, tshwj xeeb tshaj yog cov tswv tsev lag luam uas tab tom nrhiav kev siv hluav taws xob tsawg, siv tau ntev, thiab pheej yig. Tab sis SPF ru tsev yog dab tsi, nws ua haujlwm li cas, thiab nws puas muaj kev nyab xeeb rau tib neeg thiab ib puag ncig? Cia peb tshawb nrhiav cov lus teb los ntawm kev xav ntawm cov kws tshaj lij polyurethane catalyst.
SPF Ru tsev yog dab tsi?
Cov ru tsev ua los ntawm cov tshuaj tsuag polyurethane ua npuas ncauj yog ib lub ru tsev uas tsis muaj qhov sib txuas, nplaum tag nrho uas tsim los ntawm kev sib tov ob yam khoom ua kua—isocyanate (A)thiabpolyol (B)—nyob rau hauv kev tswj hwm tej yam kev mob ntawmkub thiab siabCov khoom no raug thauj mus los ntawm cov kav dej kub siab thiab sib xyaw ua ke ntawm rab phom txau ntawm kwv yees li115–130°FThaum kov, cov tshuaj lom neeg ua haujlwm sai thiab nthuav dav mus rau hauv ib qhoua npuas ncauj ruaj khov, kaw-celluas lo rau ntawm lub substrate thiab kho kom zoo li daim ntaub ru tsev uas ruaj khov, sib dua, thiab tsis ntub dej.
Hom ru tsev no siv dav rau cov tsev lag luam, cov tsev lag luam, thiab cov tsev kawm ntawv. Nws qhov zoo sib xws tiv thaiv kev xau, thaum nws cov khoom rwb thaiv tsev txhim kho kev siv hluav taws xob los ntawm kev txo cov nqi HVAC.
Ua Npuas Ncauj Qhib-Cell vs. Ua Npuas Ncauj Kaw-Cell hauv Kev Ruv Tsev
- SPF kaw-cellyog qhov kev xaiv feem ntau raudaim ntawv thov ru tsevvim nws lub zog compressive siab, tiv taus dej, thiab cov khoom rwb thaiv tsev thermal.
- SPF qhib-cell, thaum sib dua thiab yoog tau ntau dua, feem ntau yog siv raukev rwb thaiv tsev sab hauvthiabkev tiv thaiv suab nrov,tsis yog rau cov ru tsev.
Yuav siv SPF ru tsev li cas?
Cov txheej txheem SPF ru tsev yogsiv rau ntawm qhov chawlos ntawm cov kws tshaj lij uas tau kawm tiav siv cov khoom siv tsuag tshwj xeeb. Cov khoom siv tshuaj A thiab B raug khaws cia rau hauv cov thawv sib cais thiab pumped los ntawm cov yeeb nkab siab mus rau rab phom tsuag.siab, kub, thiabkev sib xyaw ua keyog qhov tseem ceeb rau kev siv tau zoo thiab kev ua haujlwm ua npuas ncauj.
Lub hauv paus ntawm qhov kev sib xyaw no yogCov tshuaj catalysts polyurethaneuas tswj qhov ceev ntawm cov tshuaj tiv thaiv, sib npaug ntawm cov txheej txheem ua npuas thiab gelling, thiab cuam tshuam rau cov khoom kawg ntawm cov ua npuas. Peb cov catalysts, xws liMXC-5thiabMXC-8,tau tsim los rau SPF systems kom ntseeg tau tias muaj kev ua haujlwm zoo thiab ua npuas dej zoo.
Puas Yog Tshuaj Tsuag Polyurethane Ua Npuas Ncauj Muaj Kev Nyab Xeeb?
Qhov no yog ib lo lus nug uas cov tswv tsev, cov neeg cog lus, thiab cov neeg tawm tswv yim txog kev ruaj khov feem ntau nug.
Cov lus teb luv luv yog:SPF nws tus kheej tsis muaj tshuaj lom,tab sisnws txoj kev nyab xeeb nyob ntawm seb cov qauv tsim li cas-tshwj xeeb tshaj yog cov tshuaj ntxiv uas koom nrog hauv kev tsim khoom.
Thaum lub sijhawm thiab tom qab daim ntawv thov,cov tshuaj lom neeg volatile organic (VOCs)tuaj yeem tso tawm los ntawm qee yam khoom ntxiv xws licov neeg sawv cev rau cua tshuabthiabcov tshuaj tiv thaiv hluav tawsQee cov VOCs no yuav muaj ib qhomuaj peev xwm ua kom lub ntiaj teb sov siab (GWP)los yog ua rau khaus thaum raug ncaj qha. Qhov no yog vim li caskev ntsuas kev nyab xeeb kom zoo,suav nrog PPE thiab qhov cua nkag, yog qhov tseem ceeb thaum lub sijhawm teeb tsa.
Ntawm Mingxu New Materials, peb tsom mus rauCov tshuaj polyurethane catalysts uas muaj VOC tsawg,zoo liMXC-5thiabMXC-8,uas pabtxo cov pa tawm, kev ua xua,thiabkev cuam tshuam rau ib puag ncigCov catalysts no tswj tau qhov kev ua tau zoo thaum txhawb nqa cov hom phiaj kev ruaj khov hauv cov qauv ua npuas niaj hnub.
Qhov Tseem Ceeb ntawm Kev Xaiv Cov Catalysts Zoo
Cov catalysts ua lub luag haujlwm tseem ceeb hauv kev ua kom ntseeg tau tiaskev ua haujlwm zoo, kev ruaj khov, thiab kev ua tau zoo ntawm ib puag ncigntawm cov txheej txheem SPF ru tsev. Lub kaw lus catalyst zoo sib npaug ua kom ntseeg tau tias:
- Kev tswj hwm reactivity rau kev nthuav dav ua npuas ncauj thiab kev nplaum kom zoo
- Lub sijhawm kho kom zoo rau qhov chaw ua haujlwm kom zoo
- Cov pa phem tsawg kom ua tau raws li cov cai tswjfwm kev noj qab haus huv thiab ib puag ncig uas nruj zuj zus
Peb cov khoom kab ntawmCov tshuaj catalysts polyurethane uas ua los ntawm cov hlau thiab amineyog tsim tshwj xeeb rau SPF systems thiab sib xws nrog ob qho tib siib txwm muajthiabcov qauv tsim tshiab uas muaj GWP qis,suav nrog cov tshuab ua raws li HFO.
Xaus lus
Cov ru tsev polyurethane ua npuas ncauj txau muaj ib qhokev daws teeb meem uas siv tau ntau yam, ua tau zoo heevrau cov ru tsev lag luam niaj hnub no. Txawm hais tias kev txhawj xeeb txog kev nyab xeeb yog qhov nkag siab, cov qauv niaj hnub no - nrog rau kev xaiv zoo ntawmcov tshuaj catalysts uas tsis muaj pa phemthiabcov khoom ntxiv uas ruaj khov—ua SPF ru tsev raws limuaj kev nyab xeeb, txuag hluav taws xob, thiab paub txog ib puag ncigkev xaiv.
Lub sijhawm tshaj tawm: Lub Rau Hli-17-2025