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- W2364796554 abstract "Polyisocyanurate rigid foams were prepared using PM-200 ( the mixture of isocyanate and di- phenylmethane diisocyanate ), isocyanurate-phthalate polyether polyols ( IPPEP ) or polypropylene oxide polyol by a certain isocyanate index of 200.A comprehensive study was performed with the focus on the effect of the application of IPPEP on the thermostability and flame retardancy of polyisocyanurate rigid foams and the influence of n ( PO ) ∶n ( PA ) on the mechanical property of polyisocyanurate rigid foams. The results show that the application of IPPEP makes the glass transition temperature of polyurethane foams increases 45℃ , thermal decomposition temperature increases from 510℃to 540℃ , oxygen index increases to 23.3%.The tensile strength and the compression strength of the foam increases first , then decreases with the decreasing of n ( PO ) ∶n ( PA ) ." @default.
- W2364796554 created "2016-06-24" @default.
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- W2364796554 date "2013-01-01" @default.
- W2364796554 modified "2023-09-27" @default.
- W2364796554 title "Preparation and Properties of Novel Polyisocyanurate Rigid Foams" @default.
- W2364796554 hasPublicationYear "2013" @default.
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