Graphene (Gr) uniformly dispersed aromatic petroleum resin (APR) coatings were prepared using exfoliated Gr and APR as raw materials by solution mixing method. Graphene was first mixed with the xylene solution and treated by ultrasonication. Then the APR was added to the mixture solution, after heating and stirring to remove the excess xylene solvent, the APR solution with uniform dispersion of graphene could be obtained. Atomic force microscopy (AFM) was used to test the thickness variation of the multilayer graphene layers before and after xylene adsorption. The results showed that the xylene which increased the thickness of the multilayer graphene was interspersed between the graphene layers. Raman spectroscopy, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) characterized that graphene obtained a good dispersion of Gr in APR. The electrochemical characteristics of graphene-modified APR coatings were tested by electrochemical impedance spectroscopy (EIS), and the results showed that the xylene content influenced the dispersion of graphene and flowability of the APR solution. The Gr/APR coatings with 45 wt% xylene exhibited the best corrosion protection performance. The impedance modulus of the coating in the low-frequency region after being immersed in 3.5 wt% sodium chloride solution for 100 days was greater than 10⁹Ω·cm².

以剥离的Gr和APR为原料，采用溶液混合法制备了石墨烯（Gr）均匀分散的芳香石油树脂（APR）涂料。石墨烯首先与二甲苯溶液混合并通过超声波处理。然后在混合溶液中加入APR，加热搅拌除去多余的二甲苯溶剂，得到石墨烯分散均匀的APR溶液。原子力显微镜（AFM）用于测试吸附二甲苯前后多层石墨烯层的厚度变化。结果表明，增加多层石墨烯厚度的二甲苯散布在石墨烯层之间。拉曼光谱，热重分析 (TGA) 和扫描电子显微镜 (SEM) 表征石墨烯在 APR 中获得了良好的 Gr 分散。通过电化学阻抗谱（EIS）测试石墨烯改性APR涂层的电化学特性，结果表明二甲苯含量影响石墨烯的分散性和APR溶液的流动性。含 45 wt% 二甲苯的 Gr/APR 涂层表现出最好的防腐性能。涂层在3.5 wt%氯化钠溶液中浸泡100天后低频区阻抗模量大于10 结果表明，二甲苯含量影响石墨烯的分散性和APR溶液的流动性。含 45 wt% 二甲苯的 Gr/APR 涂层表现出最好的防腐性能。涂层在3.5 wt%氯化钠溶液中浸泡100天后低频区阻抗模量大于10 结果表明，二甲苯含量影响石墨烯的分散性和APR溶液的流动性。含 45 wt% 二甲苯的 Gr/APR 涂层表现出最好的防腐性能。涂层在3.5 wt%氯化钠溶液中浸泡100天后低频区阻抗模量大于10⁹ Ω·厘米²。