Waterborne graphene paste with high conductivity is highly desired because it can avoid using harmful organic solvents. Herein, the paste with both good conductivity and adhesion on substrates was prepared. Hydrophilic graphene was made firstly by oxidizing weakly pristine graphene using a plasma. Then, the obtained graphene, dipropylene glycol methyl ether, glycol, glycerol, the copolymer of N-vinyl-2-pyrrolidone, and vinyl acetate (P(VP/VA)) were applied to fabricate the paste. The electrical conductivity of the paste-based patterns on polyimide substrates via screen-printing reached 1.34×10⁴s/m, and its adhesion reached 4B level. The paste is expected to have wide applications in making flexible conductive films.

具有高电导率的水性石墨烯浆料是非常需要的，因为它可以避免使用有害的有机溶剂。在此，制备在基材上具有良好的导电性和粘附性的糊剂。亲水性石墨烯首先通过使用等离子体将弱质的原始石墨烯氧化而制得。然后，将获得的石墨烯，二丙二醇甲醚，二醇，甘油，N-乙烯基-2-吡咯烷酮的共聚物和乙酸乙烯酯（P（VP / VA））涂覆以制备糊剂。通过丝网印刷在聚酰亚胺衬底上的基于糊剂的图案的电导率达到1.34×10 ⁴ s / m，并且其粘附力达到4B水平。期望该糊料在制造柔性导电膜中具有广泛的应用。