High-dispersion graphene solution prepared by virtue of one-step method and preparation method of high-dispersion graphene solution
A graphene solution, high dispersion technology, applied in the direction of coating, etc., can solve the problems of poor dispersion of graphene and polymer, discount of excellent performance of graphene, application restrictions, etc., and achieve convenient method, low cost and good applicability Effect
Inactive Publication Date: 2019-03-19
NANJING FORESTRY UNIV
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Abstract
The invention relates to a high-dispersion graphene solution prepared by virtue of a one-step method and a preparation method of the high-dispersion graphene solution. The high-dispersion graphene solution contains suspension liquid consisting of flake graphite and cellulose nanocrystals, wherein the mass ratio of flake graphite to cellulose nanocrystal in cellulose nanocrystal/flake graphite suspension liquid is (1-3) to 100. The preparation method compriss the following steps: (1) preparing the cellulose nanocrystal/flake graphite suspension liquid; (2) centrifuging the suspension liquid; (3) carrying out dialysis on the suspension liquid; and (4) carrying out ultrasonic treatment formation on the suspension liquid. The high-dispersion graphene solution has the advantages that (1) by preparing through the one-step method, the principle is simple, the operation is convenient, and the method is convenient, fast and suitable for industrial production; (2) hydroxide radicals on the surfaces of the cellulose nanocrystals can adequately react with surface active groups on the surface of a graphene slice layer, so that the graphene can be highly and uniformly dispersed; and (3) the high-dispersion graphene solution is low in cost, wide in source, controllable in process and good in applicability.
Application Domain
Coatings
Technology Topic
Cvd grapheneFlake graphite +5
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