氧化石墨烯材料疏水结构调控及其在水性防腐涂层中的应用研究  

Research on Graphene Oxide’s Hydrophobic Regulation and Its Application in Waterborne Anticorrosive Coatings

作　　者：梁宇 张心悦 陈凯锋 亓海霞[1,2] 张黎黎 黄从树 王晶晶 LIANG Yu;ZHANG Xin-yue;CHEN Kai-feng;QI Hai-xia;ZHANG Li-li;HUANG Cong-shu;WANG Jing-jing(Xiamen Material Research Institute of CSIC No.725 Research Institute,Xiamen 361116,Fujian,China;State Key Laboratory for Marine Corrosion and Protection,Qingdao 266101,Shandong China)

机构地区：[1]中国船舶集团有限公司第七二五研究所厦门材料研究院,福建厦门361116 [2]海洋腐蚀与防护国防科技重点实验室,山东青岛266101

出　　处：《中国涂料》2021年第7期10-15,26,共7页China Coatings

基　　金：重点实验室基金(6142901180302);厦门市科技计划项目(3502ZCQ20201002);厦门市高校科研院所产学研项目(3502Z20203098)。

摘　　要：采用长链脂肪胺对片层氧化石墨烯(GO)表面进行一步法疏水结构调控,获得一系列脂肪胺改性氧化石墨烯(GO-C_(x)),并通过傅里叶红外光谱(FT-IR)、扫描电子显微镜(SEM)、光学接触角、X射线衍射(XRD)等手段对GO-C_(x)的结构以及疏水性能进行表征与验证;采用水相分散状态观察,研究了GO-C_(x)在水中分散状态随时间的变化关系;利用附着力测试、中性盐雾测试等手段评价GO-C_(x)在水性防腐涂层中的应用效果。结果表明:经正十二胺改性的氧化石墨烯(GO-C_(12))具有较好的疏水效应与最优的水分散效果。相比传统水性防腐涂层,掺杂GO-C_(12)材料能够有效提升水性涂层与基材的连接强度与腐蚀防护性能。A series of aliphatic amine modified graphene oxide(GO-C_(x))were obtained by one-step regulation with the sheet-layer graphene oxide(GO)and hydrophobic long-chain aliphatic amines.Fourier infrared spectroscopy(FT-IR),scanning electron microscope(SEM),optical contact angle and X-ray diffraction(XRD)and other means were used to characterize and verify the hydrophobicity and structure of GO-C_(x).The dispersion state of the water phase was observed to study the relationship between change in the dispersion state of GO-C_(x) in water and time.At last,the adhesion test and neutral salt spray test methods were adopted to evaluate the application effect of GO-C_(x) in waterborne anticorrosive coatings.The results show that compared with traditional waterborne anticorrosive coatings,GO-C_(12)-doped waterborne coatings can effectively improve the connection strength and corrosion protection performance of waterborne coatings and substrates.

关 键 词：长链脂肪胺 改性氧化石墨烯 疏水效应 分散状态 水性防腐 

分 类 号：TQ630.4[化学工程—精细化工]