Cov vaj huam sib luag sandwich yog cov khoom siv niaj hnub siv dav hauv kev tsim kho thiab kev siv cov qauv vim lawv cov cua sov zoo heev, cov khoom sib dua, thiab lub zog kho tshuab. Cov khoom siv tseem ceeb siv rau kev sau cov vaj huam sib luag no ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab lawv cov yam ntxwv ua tau zoo. Ib qho ntawm cov khoom siv feem ntau siv rau kev sau cov vaj huam sib luag sandwich yog polyurethane ua npuas ncauj.
Ua Npuas Ncauj Polyurethane: Cov Khoom Siv Tseem Ceeb Nyiam
Ua npuas dej polyurethane yog ib qho kev xaiv nrov rau kev sau cov vaj huam sib luag sandwich vim nws cov khoom zoo heev, lub teeb yuag, thiab kev ruaj khov ntawm cov qauv. Nws yog ib hom polymer uas tsim los ntawm kev sib xyaw diisocyanates nrog polyols, ua rau muaj ua npuas dej uas tuaj yeem hloov kho rau qhov ceev thiab lub zog tshwj xeeb. Qhov kev hloov pauv no ua rau ua npuas dej polyurethane zoo tagnrho rau ntau yam kev siv, los ntawm cov tsev nyob mus rau cov chaw lag luam.
Cov Khoom Siv Rwb Thaiv Kub
Ib qho ntawm cov laj thawj tseem ceeb uas ua rau polyurethane ua npuas ncauj nyiam siv rau kev sau cov vaj huam sib luag sandwich yog nws cov khoom zoo heev rau kev rwb thaiv tsev. Polyurethane ua npuas ncauj muaj cov khoom siv hluav taws xob tsawg, uas txhais tau tias nws txo cov cua sov hloov pauv ntawm sab hauv thiab sab nraud. Cov yam ntxwv no yog qhov tseem ceeb rau kev tswj hwm kev siv hluav taws xob hauv cov tsev, vim nws pab ua kom cov chaw sab hauv sov thaum lub caij ntuj no thiab txias thaum lub caij ntuj sov, yog li txo qhov xav tau cua sov thiab txias ntau dhau.
Lub zog sib dua thiab lub zog ntawm cov qauv
Txawm hais tias nws lub cev tsis hnyav, ua npuas polyurethane muab lub zog tseem ceeb rau cov vaj huam sib luag sandwich. Cov qauv cellular ntawm lub npuas ua rau nws muaj peev xwm thauj khoom tau zoo thiab tiv taus kev sib txhuam. Kev sib xyaw ua ke ntawm lub teeb thiab lub zog no yog qhov tshwj xeeb tshaj yog rau kev tsim kho, qhov twg kev txo qhov hnyav ntawm cov khoom siv hauv tsev tuaj yeem ua rau kev txuag nqi hauv kev thauj mus los thiab kev teeb tsa, yam tsis muaj kev cuam tshuam rau kev ua haujlwm ntawm lub tsev.
Kev Tiv Thaiv Hluav Taws thiab Kev Ruaj Khov
Cov ua npuas dej polyurethane niaj hnub siv rau hauv cov vaj huam sib luag sandwich feem ntau yog tsim los txhim kho kev tiv thaiv hluav taws, ua tau raws li cov qauv kev nyab xeeb nruj. Tsis tas li ntawd, ua npuas dej polyurethane yog ruaj khov thiab tiv taus cov dej noo, tshuaj lom neeg, thiab kev puas tsuaj ntawm cov kab mob, ua kom ntseeg tau tias cov vaj huam sib luag sandwich muaj lub neej ntev. Qhov kev ruaj khov no ua rau cov vaj huam sib luag sandwich uas muaj polyurethane yog qhov kev xaiv txhim khu kev qha rau ntau yam huab cua thiab tej yam kev mob ib puag ncig.
Cov ntawv thov hauv ntau yam lag luam
Qhov ua npuas ncauj polyurethane ua los ntawm cov khoom siv puv ntoob ua rau nws siv tau ntau dua li cov qauv tsev ib txwm muaj. Cov vaj huam sib luag sandwich nrog polyurethane cores siv rau hauv cov chaw cia khoom txias, cov tsheb tub yees, thiab txawm tias hauv kev tsim cov chav huv thiab cov chaw tswj hwm uas xav tau kev tswj hwm qhov kub thiab av noo.
Xaus lus
Xaus lus, polyurethane ua npuas ncauj yog cov khoom siv zoo tshaj plaws rau kev sau cov vaj huam sib luag sandwich vim nws cov cua sov zoo heev, lub cev sib dua tab sis muaj zog, tiv taus hluav taws, thiab ruaj khov. Nws qhov kev hloov pauv mus rau ntau yam qhov ceev thiab lub zog ua rau nws haum rau ntau yam kev siv, los ntawm cov tsev nyob thiab cov tsev lag luam mus rau kev siv tshwj xeeb hauv kev lag luam. Ua tus neeg muab khoom polyurethane catalyst, peb lees paub lub luag haujlwm tseem ceeb uas polyurethane ua npuas ncauj zoo ua si hauv kev txhim kho kev ua tau zoo thiab kev ua haujlwm ntawm cov vaj huam sib luag sandwich, thiab peb cog lus tias yuav txhawb nqa kev tsim kho tshiab thiab kev txhim kho ntawm cov khoom siv tseem ceeb no.
Lub sijhawm tshaj tawm: Lub Rau Hli-05-2024