PU nplaum yog ua los ntawm polyurethane (polyurethane), tshuaj hu ua polyurethane ester. Nws yog ib qho siab - cov khoom siv polymer molecular tsim los ntawm cov tshuaj tiv thaiv ntawm polyols thiab polyisocyanates.
1. Kev cia khoom: PU nplaum yuav tsum muab cia rau hauv qhov chaw txias, qhuav, tsis txhob tshav ntuj ncaj qha. Qhov pom zoo cia kub yog feem ntau ntawm 5-40 degree.
2. Ntim Ntim: Khaws cov ntim ntim kom nruj kom tsis txhob muaj cov kuab tshuaj evaporation lossis noo noo nkag mus. Seal lub ntim tam sim tom qab siv.
3. Kev Tswj Xyuas Cov Khoom Muag: Ua raws li thawj -hauv, ua ntej- tawm (FIFO) txoj cai kom tsis txhob muaj kev hloov pauv vim yog lub sijhawm ntev - khaws cia. Tsis tu ncua xyuas qhov xwm txheej ntawm cov khoom muag khoom.
4. Kev Ntsuas Kev Nyab Xeeb: Qhov chaw cia khoom yuav tsum zoo - qhov cua thiab nyob deb ntawm qhov hluav taws kub thiab qhov cua sov. Cov neeg ua haujlwm yuav tsum hnav cov khoom tiv thaiv.
