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- W2994805232 endingPage "115772" @default.
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- W2994805232 abstract "Cystalline-Cc and ultra-milled Amorphous-Ca cellulose were used as reactive filler to tune the performances of composite polyurethane-cellulose-foams, PUC. The effect of Cc and Ca on chemo-physical and mechanical properties of PUC was analysed through FTIR, morphological analysis, thermal conductivity and compression measurements. FTIR results show that, both Cc and Ca react with isocyanate through the OH functional groups contributing to the formation of a tough cellulose-polyurethane network. Morphological observations show that the addition of both Cc and Ca induces a decrease of average cell-size compared to the pristine-PU, thus confirming that they act as nucleating agent. In addition, the better dispersion of the Ca in the polyol, with respect to Cc induces, a finer cell leading to a reduction of the thermal conductivity around 33 % (for the composite loaded with 20 %wt-Ca) with respect to pristine-PU. Finally, the addition of Ca highly reactive modifies the mechanical behaviour from rigid-brittle to semi-rigid." @default.
- W2994805232 created "2019-12-26" @default.
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- W2994805232 date "2020-03-01" @default.
- W2994805232 modified "2023-10-01" @default.
- W2994805232 title "Tuning of polyurethane foam mechanical and thermal properties using ball-milled cellulose" @default.
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- W2994805232 doi "https://doi.org/10.1016/j.carbpol.2019.115772" @default.
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