Method and Apparatus for Identifying and Characterizing Material Solvents and Composite Matrices and Methods of Using Same
AssigneeWiSys Technology Foundation, Inc.
InventorsJames P. Hamilton, Philip V. Streich
Life of this patent
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Abstract
Solvents for macromolecules generally believed to be insoluble in their pristine form are identified by generation of a “solvent resonance” in the relationship between solvent quality (deduced by Rayleigh scattering) and an intrinsic property of solvents. A local extreme of the solvent resonance identifies the ideal intrinsic property of an ideal solvent which may then be used to select a particular solvent or solvent combination. A solvent for graphene is used in the production of transparent conductive electrodes.
Claims26
A method of preparing a polymer composite comprising the steps of:
- (a) dispersing graphene in a solvent characterized by a value of chi less than about 0.08;
- and
- (b) capturing the dispersed graphene in a substantially solid phase polymer matrix.
A method of preparing a polymer composite comprising the steps of:
- (a) dispersing graphene in a solvent characterized by a surface tension value substantially between about 36 mJ/m2 and 43 mJ/m2;
- and
- (b) capturing the dispersed graphene in a substantially solid phase polymer matrix.
A polymer composite comprising operative amounts of single layer graphene dispersed in a polymer matrix to provide for substantially improved strength, electrical conductivity, thermal conductivity, flame retardancy or ultraviolet absorptivity.
A polymer composite of a polymer matrix and graphene where the graphene is dispersed using a solvent characterized by a dispersion limit of the graphene within the solvent of greater than substantially 0.05 mg/ml.
Dependencies are inferred from the claim text.