The effect of addition of low-layer graphene nanoparticles on structure and mechanical properties of polyurethane-based block copolymers

摘要: The effect of low-layer graphene nanoparticles (LLGNP) at concentration from 0.002 to 0.1 wt.% on physical–mechanical and structural parameters multi-block polyurethanes based oligodiethyleneglycol adipinate, 2,4-toluylene diisocyanate 1,6-hexamethylene mixture bifunctional chain elongation agents, 2-aminoethanol 1,4-butanediol has been studied. Three methods for LLGNP addition in polymer were compared: (1) a reaction the synthesis macrodiisocyantate formation step (in situ 1 method); (2) solution final 2 (3) melt (ex situ). It shown that using method provides an increase Young’s modulus nanocomposites. For ex method, significant tensile strength material with growth was detected.