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Abstract
ABSTRACTNovel polyurethane (PU) was prepared and reinforced with fullerene C-60 (1–10 wt.%). An epoxy, diglycidyl 1,2-cyclohexanedicarboxylate, was coated on PU/Full-C60 films using dip coating technique. Epoxy coated PU/Full-C60 revealed dense and consistent network morphology of epoxy-polyurethane with embedded fullerene nanoparticles. Epoxy coated PU/Full-C60 1–10 films showed higher values of tensile strength 86.9–90.3 MPa (79% increase relative to PU) and tensile modulus 33.3–47.6 GPa. In Epoxy coated PU/Full-C60 1–10, Tmax was increased to 521°C and char yield to 45%. Moreover increasing fullerene content decreased PHRR from 302 to 138 kW/m2, i.e., 55% reduction in flammability than PU.
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