A method for determining graphene composition and content in materials
A graphene content technology, applied in the direction of material excitation analysis, Raman scattering, etc., can solve the problems that the influence of organic solvents and polymer Raman signals cannot be ruled out, the technology is difficult, and the content of graphene cannot be determined.
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[0037] The method of the present invention extracts the graphene-containing conductive filler from the graphene conductive polymer composite material; collects the Raman spectrum of the sample and the collection spectrum of the standard graphene sample, and compares and calculates the collection diagram to obtain the graphene sample in carbon content in the conductive filler.
[0038] The test material of the present invention is preferably a graphene conductive composite material.
[0039] The method of the present invention uses a solvent and utilizes the solubility difference between the carbonaceous filler and the polymer matrix material in the graphene polymer composite material to separate the insoluble filler containing graphene from the composite material; directly perform Raman on the insoluble filler Characterize and obtain the characteristic Raman spectrum of the mixture; use the characteristic D peak, G peak and 2D peak of the carbonaceous material to compare and c...
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