Graphene sizing and preparation method thereof

The invention discloses graphene sizing and a preparation method thereof. The preparation method includes preparing acrylonitrile oligomers into graphene powder through liquid-phase synthesis; subjecting the graphene powder to mechanical ball grinding; dissolving dispersants in a solvent to obtain a mixed solvent; adding the graphene powder subjected to ball grinding into the mixed solvent, and performing uniform ultrasound-assisted dispersion to obtain the graphene sizing. The preparation method has the advantages of simple process and avoidance of environment pollution, the graphene sizing with high dispersity, stability and concentration can be prepared, and the obtained graphene sizing can be applied to the field of new electricity-conducting and heat-conducting materials. 本发明公开种石墨烯浆料及其制备方法，其中，所述石墨烯浆料的制备方法，包括以下步骤：将丙烯腈低聚物通过液相合成法制备得到石墨烯粉体；将所述石墨烯粉体进行机械球磨处理；将分散剂溶解到溶剂中得到混合溶剂；将球磨处理后的石墨烯粉体加入到混合溶剂中，超声辅助分散均匀后得到石墨烯浆料。本发明所述的制备方法具有工艺简单，对环境没有污染的优点，能够制备得到分散性好、稳定性高、浓度高的石墨烯浆料，所得到的石墨烯浆料可用于导电、导热等新材料领域。