Cov khoom siv ua npuas dej polyurethane tau nrov zuj zus vim nws cov khoom siv rwb thaiv tsev zoo thiab kev txuag hluav taws xob. Txawm li cas los xij, cov lus nug feem ntau tshwm sim txog nws txoj kev nyab xeeb rau cov neeg teeb tsa thiab cov neeg nyob hauv cov tsev uas siv nws. Kev nkag siab txog cov yam ntxwv kev nyab xeeb ntawm cov khoom siv ua npuas dej polyurethane yog qhov tseem ceeb rau kev txiav txim siab zoo.
Cov Tshuaj Lom Zem thiab Daim Ntawv Thov
Cov tshuaj tsuag polyurethane yog tsim los ntawm kev sib xyaw ob yam khoom ua kua: ib qho isocyanate thiab ib qho polyol resin. Thaum sib xyaw ua ke, lawv ua rau muaj ib qho ua npuas uas nthuav dav thiab tawv sai. Thaum lub sijhawm thov, kev ceev faj txog kev nyab xeeb yog qhov tseem ceeb vim tias cov tshuaj lom neeg uas koom nrog tuaj yeem ua rau muaj kev phom sij hauv lawv lub xeev tsis tau kho. Cov neeg teeb tsa yuav tsum hnav cov khoom siv tiv thaiv tus kheej (PPE), suav nrog cov pa ua pa, hnab looj tes, thiab khaub ncaws tiv thaiv, kom tsis txhob raug cov pa phem thiab kev sib cuag ntawm daim tawv nqaij.
Kev Tshem Tawm Pa thiab Kev Zoo ntawm Huab Cua Hauv Tsev
Ib qho ntawm cov teeb meem kev nyab xeeb tseem ceeb uas cuam tshuam nrog polyurethane tsuag ua npuas ncauj rwb thaiv tsev yog qhov tawm-gassing. Off-gassing txhais tau tias cov pa tawm ntawm cov organic compounds (VOCs) thaum lub npuas dej khov. Kev tsis muaj cua nkag txaus thaum lub sijhawm thiab tom qab kev teeb tsa tuaj yeem ua rau muaj VOC ntau, uas ua rau muaj teeb meem ua pa, khaus tawv nqaij, thiab lwm yam teeb meem kev noj qab haus huv. Txhawm rau txo cov kev pheej hmoo no, nws raug pom zoo kom tawm hauv thaj chaw thaum lub sijhawm teeb tsa thiab rau ib lub sijhawm tom qab ntawd kom ntseeg tau tias muaj cua nkag thiab khov ntawm lub npuas dej.
Kev Nyab Xeeb Mus Ntev
Thaum cov tshuaj polyurethane txau tag lawm, feem ntau suav tias yog cov tshuaj tsuag polyurethane uas muaj kev nyab xeeb. Nws tsim cov qauv ruaj khov, tsis muaj zog uas tsis tso cov tshuaj lom neeg tawm hauv cov xwm txheej ib txwm muaj. Txawm li cas los xij, nws yog ib qho tseem ceeb kom ntseeg tau tias cov tshuaj tsuag tau khov tag. Kev teeb tsa tsis raug lossis siv cov khoom sib xyaw tsis raug tuaj yeem ua rau cov tshuaj tsis khov tag, ua rau muaj kev phom sij rau lub sijhawm ntev.
Kev Nyab Xeeb Hluav Taws
Cov khoom siv rwb thaiv tsev polyurethane txau ua npuas dej yog cov khoom siv hluav taws kub thiab yuav tsum tau npog nrog cov ntaub thaiv hluav taws, xws li drywall, kom ua tau raws li cov cai tsim kho thiab cov qauv kev nyab xeeb. Cov chaw tsim khoom feem ntau ntxiv cov tshuaj tua hluav taws rau hauv cov npuas dej kom txhim kho nws txoj kev tiv thaiv hluav taws, tab sis cov tshuaj ntxiv no tsis ua rau cov npuas dej tiv thaiv hluav taws tag nrho. Kev teeb tsa kom raug thiab ua raws li cov lus qhia kev nyab xeeb yog qhov tseem ceeb rau kev txo qis kev pheej hmoo hluav taws.
Kev Xav Txog Ib puag ncig
Txawm hais tias cov tshuaj polyurethane tsuag ua npuas ncauj yog ib qho khoom siv rwb thaiv tsev zoo, nws muaj kev cuam tshuam rau ib puag ncig. Cov txheej txheem tsim khoom siv cov tshuaj uas tau los ntawm roj av, thiab qee cov neeg sawv cev uas siv los ua kom cov npuas ncauj nthuav dav tuaj yeem ua rau lub ntiaj teb sov. Txawm li cas los xij, kev nce qib hauv cov qauv tau ua rau muaj cov kev xaiv zoo dua rau ib puag ncig, xws li cov neeg sawv cev uas tshuab los ntawm dej lossis cov neeg sawv cev uas muaj GWP qis (muaj peev xwm ua kom lub ntiaj teb sov).
Xaus lus
Cov khoom siv rwb thaiv tsev polyurethane tsuag ua npuas ncauj muaj kev nyab xeeb thaum siv thiab tuav kom raug. Qhov cua nkag tau zoo, cov txheej txheem teeb tsa kom raug, thiab kev ua raws li cov lus qhia kev nyab xeeb yog qhov tseem ceeb los txo qis kev pheej hmoo kev noj qab haus huv thaum siv. Thaum kho tau zoo lawm, cov npuas ncauj ruaj khov thiab pab txhawb kev siv hluav taws xob, ua rau nws yog qhov kev xaiv zoo rau kev rwb thaiv tsev. Rau cov neeg txhawj xeeb txog kev cuam tshuam rau ib puag ncig, kev nrhiav cov qauv ntsuab dua tuaj yeem muab kev thaj yeeb nyab xeeb ntxiv. Ib txwm sab laj nrog cov kws tshaj lij teeb tsa thiab ua raws li cov lus qhia ntawm cov chaw tsim khoom kom ntseeg tau tias siv cov khoom siv rwb thaiv tsev polyurethane tsuag ua npuas ncauj muaj kev nyab xeeb thiab zoo tshaj plaws.
Lub sijhawm tshaj tawm: Lub Rau Hli-18-2024