摘要： 制备了 3种不同氧化程度的氧化石墨烯，利用氧化石墨烯对水性环氧富锌涂料进行改性。采用盐雾试验、电化学测试、耐冲击性及附着力测试等对改性涂层的性能进行研究，研究发现氧化程度较低的氧化石墨烯改性环氧富锌涂料性能最佳。然后探究了氧化石墨烯含量和锌粉含量对该涂层的耐腐蚀性和力学性能的影响。结果表明：氧化石墨烯（ GO）的添加可以有效延缓钢材的腐蚀，当 GO-1添加量为 0.36%（质量分数，下同），锌粉含量为 44%时，制备所得的 GO-1/水性环氧富锌涂料的综合性能最佳。当制得的氧化石墨烯的氧化程度较小，含氧基团较少且没有出现羧基时，涂料的耐腐蚀性能得到改进。
关键词:
氧化石墨烯,
水性环氧富锌涂料,
防腐性能
Abstract: Three graphene oxides with different degrees of oxidation were prepared，which were used to modify the epoxy zinc-based coatings. The properties of the modified coatings were studied by salt spray test，electrochemical test，impact resistance and adhesion test. The results showed that the graphene oxide modified epoxy zinc-based coatings with lower oxidation degree provided the best performance. The effects of the content of graphene oxideand zinc powder on the corrosion resistance and mechanical properties of the coatings were investigated.
The results showed that the addition of graphene oxide could effectively delay the corrosion of steel，when the amount of GO-1 added was 0.36% and the content of zinc powder was 44%， the overall performance of the prepared GO-1/waterborne epoxy zinc-based coating was the
best. When the graphene oxide is less oxidized，the less of oxygen-containing groups，and the carboxyl group was not existed，the corrosion resistance of the coating was improved.
Key words:
graphene oxide,
waterborne epoxy and zinc rich coating,
anticorrosive property
中图分类号:
陈中华, 李青, 何畅. 石墨烯的氧化程度和含量对水性锌粉涂料防腐性能的影响[J]. 涂料工业, 2019, 49(6): 35-41.
Chen Zhonghua, Li Qing, He Chang. Effects of the Oxidisation Degree and Content of Graphene on the Anticorrosion Properties of Waterborne Zinc-Based Coatings[J]. Paint & Coatings Industry, 2019, 49(6): 35-41.