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Mechanochemically aminated multilayer graphene for carbon/polypropylene graft polymers and nanocomposites

2019; Budapest University of Technology and Economics; Volume: 13; Issue: 3 Linguagem: Inglês

10.3144/expresspolymlett.2019.24

1788-618X

Laura Burk, Marie V. Walter, Anne Asmacher, Matthias Gliem, Michael Moseler, Rolf Muelhaupt,

Fiber-reinforced polymer composites

Among carbon allotropes, graphene as a 2D carbon polymer consists of single layer of honeycomb-like arranged sp 2 -hybridized carbon atoms and is outstanding with respect to its unique combination of exceptionally high Young's Modulus (1 TPa), barrier resistance to gas and fluid permeation, large specific surface area (2600 m 2 •g -1 ), high electrical (6000 S•cm -1 ) and thermal conductivity (5000Aiming to transfer graphene-like property profiles to 2D carbon/polymer compounds graphene or graphene stacks, respectively, are either covalently attached to the polymer or uniformly dispersed within the polymer matrix.Both covalent interfacial coupling and dispersion require functionalization of graphene [9,10].Today several strategies are at hand for tailoring functionalized graphene (FG) [11][12][13].Whereas most bottom-up processes such as chemical vapor deposition and tedious multi-step syntheses produce high purity defect-free graphene and FG at rather high cost, top-down processes are employing graphite as abundant feed stock.These approaches are more economic with respect to meeting the stringent cost requirements typical for many plastics' 286