Kev tswj nruj ntawm cov av noo nyob ib puag ncig yog xav tau (RH <60%). Isocyanate tivthaiv yog rhiab heev rau ya raws; nws yuav tsum tau muab kaw tom qab qhib. Hnav N95 daim npog ntsej muag (dawb TDI cov ntsiab lus <0.5%) raug pom zoo thaum ua haujlwm. Hom khoom no tam sim no muaj nyob hauv peb lub khw. Peb cov nplaum PU nta muaj zog, ceev- ziab, pob tshab, thiab cov khoom tsis muaj dej, kho nyob rau hauv chav tsev kub, thiab muaj lub zog shear txog li 26 MPa, haum rau kev sib txuas ntau yam ntaub ntawv.
1. Nyeem cov lus qhia ntawm cov khoom: Ua tib zoo nkag siab txog cov yam ntxwv ntawm cov khoom, kev siv, thiab kev ceev faj ua ntej siv.
2. Siv cov kev tiv thaiv tus kheej: Hnav hnab looj tes, tsom iav, thiab lwm yam khoom siv tiv thaiv thaum ua haujlwm kom tsis txhob sib chwv ncaj qha rau ntawm daim tawv nqaij thiab qhov muag.
3. Khaws qhov cua kom zoo: tshwj xeeb tshaj yog thaum siv sab hauv tsev, xyuas kom cov huab cua ncig hauv thaj chaw ua haujlwm kom txo cov concentration ntawm cov khoom tsis haum.
4. Kev pov tseg pov tseg kom zoo: Tshem tawm cov thawv ntim khoom thiab cov nplaum nplaum seem raws li qhov yuav tsum tau ua kom txo qis kev cuam tshuam ib puag ncig.
PU nplaum, raws li ntau- lub hom phiaj nplaum, ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw. Kev nkag siab txog nws cov yam ntxwv tseem ceeb, xaiv kom raug, thiab siv tau tuaj yeem siv nws qhov kev ua tau zoo thiab ua tau raws li ntau yam kev xav tau sib txuas. Nrog rau kev txhim kho thev naus laus zis, kev ua haujlwm ntawm PU nplaum yuav txuas ntxiv txhim kho, thiab lawv cov ntawv thov yuav txuas ntxiv mus ntxiv.
