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- W3187804945 endingPage "109701" @default.
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- W3187804945 abstract "• A phosphorylated bio-based polyol (PESO) was synthesized for flame-retardant RPUFs. • The addition of the PESO did not deteriorate the thermal conductivity and thermal stability. • The peak heat release rate of the treated RPUF was 40% lower than the control sample. • The total smoke production of the treated RPUF was 49% lower than the control sample. To overcome the fire risk of rigid polyurethane foams (RPUFs) and comply with the sustainable development, this work aimed to develop a bio-based flame-retardant polyol (PESO) for rigid polyurethane foams (RPUFs) without deteriorating other physical properties. The effect of the PESO content on the morphology, thermal stability and flammability of the resulting flame-retardant RPUFs was investigated by SEM, TGA and cone calorimeter. The addition of the PESO slightly affected the thermal conductivity and the initial thermal stability. The char yield at the high temperature region was increased with the increment of the PESO content. As expected, the incorporation of the PESO significantly improved the flame-retardant property of the resulting RPUFs. Specifically, the peak heat release rate, total heat release, and total smoke production of the flame-retardant RPUF sample containing 12.3 wt% PESO were declined by 40%, 35%, and 49%, respectively, compared to those of the unmodified RPUF. The enhanced flame-retardant property of the resulting RPUFs could be attributed to the PESO promoted the charring ability of the polymer matrix and thus formed a protective barrier layer to suppress the heat release and the smoke emission during the combustion." @default.
- W3187804945 created "2021-08-16" @default.
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- W3187804945 date "2021-09-01" @default.
- W3187804945 modified "2023-10-17" @default.
- W3187804945 title "Phosphorus-containing soybean oil-derived polyols for flame-retardant and smoke-suppressant rigid polyurethane foams" @default.
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- W3187804945 doi "https://doi.org/10.1016/j.polymdegradstab.2021.109701" @default.
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