Rigid polyurethane ua npuas ncauj board yog ib qho nyuaj board tsim los ntawm polyisocyanate thiab polyether cov ntaub ntawv nyob rau hauv qhov kev txiav txim ntawm catalysts, foaming agents, nplaim retardants thiab lwm yam additives. Cov khoom lag luam muaj qhov hnyav hnyav thiab tsis tshua muaj thermal conductivity, yog li nws muaj qhov zoo heev txias rwb thaiv tsev yam tsis muaj thermal rwb thaiv tsev. Cov khoom lag luam yog cov qauv kaw, nrog cov micropores zoo li qub thiab kaw cov xov tooj ntawm 97 feem pua. Yog li ntawd, nws tsis yog absorbent, nplaim retardant, anti-corrosion, thiab muaj lub zog siab. Kev siv kub yog - 196 ~ ntxiv rau 120 degree . Nws tuaj yeem siv dav hauv thermal rwb thaiv tsev thiab rwb thaiv tsev txias ntawm cov tsev, tub yees, kev lag luam petrochemical, thiab hluav taws xob kev lag luam.
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