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Graphene aerogel material and preparation method thereof
The invention discloses a graphene aerogel material and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a precursor solution, namely mixing graphene oxide with a framework filler, and stirring uniformly to obtain the precursor solution; (2) preparing graphene hydrogel, namely adding a catalyst into the precursor solution, stirring uniformly, then pouring into a mold containing reinforcing fibers, sealing the mold, and heating the mold for reaction, thereby obtaining fiber reinforced graphene hydrogel; (3) preparing graphene ketone gel, namely putting the graphene hydrogel into an acetone solution to perform solvent replacement so as to obtain the graphene ketone gel; and (4) preparing graphene aerogel, namely taking out the graphene ketone gel, and drying to obtain a fiber reinforced graphene aerogel material. The invention also relates to the graphene aerogel material prepared by the method, and the graphene aerogel material is low in heat conductivity and high in strength, and can be used as a high-temperature heat insulating material.
Graphene aerogel material and preparation method thereof
The invention discloses a graphene aerogel material and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a precursor solution, namely mixing graphene oxide with a framework filler, and stirring uniformly to obtain the precursor solution; (2) preparing graphene hydrogel, namely adding a catalyst into the precursor solution, stirring uniformly, then pouring into a mold containing reinforcing fibers, sealing the mold, and heating the mold for reaction, thereby obtaining fiber reinforced graphene hydrogel; (3) preparing graphene ketone gel, namely putting the graphene hydrogel into an acetone solution to perform solvent replacement so as to obtain the graphene ketone gel; and (4) preparing graphene aerogel, namely taking out the graphene ketone gel, and drying to obtain a fiber reinforced graphene aerogel material. The invention also relates to the graphene aerogel material prepared by the method, and the graphene aerogel material is low in heat conductivity and high in strength, and can be used as a high-temperature heat insulating material.
Graphene aerogel material and preparation method thereof
GUO HUI (author) / LIU BIN (author) / JIN ZHAOGUO (author) / ZHAO YINGMIN (author) / PEI YUCHEN (author)
2016-01-27
Patent
Electronic Resource
English
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