Preparation of self-healing polyurethane/functionalized graphene nanocomposites as electro-conductive one part adhesives.

ABSTRACT: We report the synthesis and investigation of the electrical conductivity and self-healing properties of moisture curable polyurethane (PU) adhesives filled with functionalized graphene nanosheets and isophorone diisocyanate (IPDI) loaded poly(methyl methacrylate) (PMMA) nanocapsules. For this purpose, chemically functionalized graphene was prepared by covalently grafting 4-(4,5-diphenyl-1H-imidazol-2-yl)phenol (DIP) on the surface of graphene oxide and synthesized PMMA nanocapsules were loaded with IPDI. Both nanofillers were then dispersed in a polyurethane matrix and the effects on the adhesion properties of the adhesives in aluminum-aluminum metal joints were studied. The results showed that by surface modification and better exfoliation of graphene nanosheets, the electrical con

SUBMITTER: Hashemi Nasr F 

PROVIDER: S-EPMC9085647 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature