Methods for preparation of concentrated graphene ink compositions and related composite materials
AssigneesNorthwestern University, President and Fellows of Harvard College
InventorsMark C. Hersam, Yu Teng Liang, Ethan B. Secor, Pradyumna L. Prabhumirashi, Kanan P. Puntambekar, Michael L. Geier, Bok Y. Ahn, Jennifer A. Lewis
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Abstract
A rapid, scalable methodology for graphene dispersion and concentration with a polymer-organic solvent medium, as can be utilized without centrifugation, to enhance graphene concentration.
Claims5
A composition comprising graphene, a hydrophobic fluid component and an ethyl cellulose dispersing agent at least partially soluble in said hydrophobic fluid component, said hydrophobic fluid component comprising terpineol and cyclohexanone, said composition comprising a graphene concentration greater than about 3 mg/mL,
- wherein said ethyl cellulose dispersing agent comprises an ethyl cellulose polymer about 46-48% ethoxylated.
Dependencies are inferred from the claim text.