Graphene/Graphite Polymer Composite Foam Derived From Emulsions Stabilized by Graphene/Graphite Kinetic Trapping

摘要

The present disclosure provides advantageous graphene/graphite stabilized composites (e.g., graphene/graphite stabilized emulsion-templated foam composites), and improved methods for fabricating such graphene/graphite stabilized composites. More particularly, the present disclosure provides improved methods for fabricating pristine, graphene/graphite/polymer composite foams derived from emulsions stabilized by graphene/graphite kinetic trapping. In exemplary embodiments, the present disclosure provides that, instead of viewing the insolubility of pristine graphene/graphite as an obstacle to be overcome, it is utilized as a means to create or fabricate water/oil emulsions, with graphene/graphite stabilizing the spheres formed. These emulsions are then the frameworks used to make foam composites that have shown bulk conductivities up to about 2 S/m, as well as compressive moduli up to about 100 MPa and breaking strengths of over 1200 psi, with densities as low as about 0.25 g/cm3.

主权项

1. A method for fabricating a composite comprising:
a) providing a phase separated system of two non-mixing solvents, the phase separated system including: (i) a first solvent and a second solvent, and (ii) an interface between the first and second solvents; b) introducing a layered material to the interface of the phase separated system; c) forming an emulsion of the first and second solvents, at least a portion of the layered material stabilizing the emulsion; and d) adding a monomer and polymerizing the first solvent phase of the emulsion to form a matrix material having cavities lined with portions of the layered material.