摘要
对石墨烯与各种材料的复合涂层进行了详细的介绍,主要包括金属-石墨烯复合涂层的制备方式、制备工艺、石墨烯的分散性以及石墨烯的添加对涂层性能的影响。电沉积、化学镀和电刷镀等制备方式都可以获得均匀致密的复合涂层,石墨烯的加入细化了涂层的晶粒,使涂层的微观形貌发生了一定的改变。石墨烯作为第二相粒子添加时,机械超声分散效果较差,一般通过添加表面活性剂再配合机械超声分散的方式来分散石墨烯,表面活性剂中的阴离子活性剂与阳离子活性剂配合使用分散效果较好。另外,还有一种保持石墨烯在溶液中浓度动态平衡的方法也有较好的效果。石墨烯作为第二相粒子加入金属涂层中,增强了金属涂层的导热、导电、耐磨、硬度和耐腐蚀等方面性能。最后,分析展望了金属与石墨烯复合涂层的发展趋势。
Graphene is a two-dimensional material composed of hexagonal carbon atoms.Due to its unique physical,chemical and mechanical properties,graphene has been considered as an ideal reinforcement phase of metal materials.Researchers have prepared composite coatings of various metals and graphene.In this paper,the composite coatings of graphene and various materials are reviewed in detail,including the preparation method and processes of the composite coating,the dispersion of graphene and the effect of graphene on the properties of the coating.Preparation methods such as electrodeposition,electroless plating and electric brush plating can obtain uniform and dense composite coatings.The addition of graphene refines the grains of the coating and changes the microscopic morphology of the coating.When graphene is added as the second phase particles,the mechanical ultrasonic dispersion effect is poor.Generally,the graphene is dispersed by adding a surfactant and then combined with mechanical ultrasonic dispersion.Among the surfactants,the dispersion effect of the combination of anionic and cationic surfactants is better.In addition,another method to maintain the dynamic equilibrium of graphene concentration in solution has also achieved good results.The addition of graphene as the second phase particles enhances the thermal conductivity,electrical conductivity,wear resistance,hardness and corrosion resistance of the metal coating.Finally,the development trend of metal and graphene composite coatings are analyzed.
作者
王翔
吴王平
黄佳琪
江兰兰
孙致平
江鹏
陈从平
张屹
宋新隆
刘坤明
产国宏
郑国城
WANG Xiang;WU Wang-ping;HUANG Jia-qi;JIANG Lan-lan;SUN Zhi-ping;JIANG Peng;CHEN Cong-ping;ZHANG Yi;SONG Xin-long;LIU Kun-ming;CHAN Guo-hong;ZHENG Guo-cheng(School of Mechanical Engineering and Rail Transit,Changzhou University,Changzhou 213164,China;Electrochemistry and Corrosion Laboratory,Changzhou University,Changzhou 213164,China;Changzhou High Technology Research Key Laboratory of Mould Advanced Manufacturing,Changzhou University,Changzhou 213164,China;School of Intelligent Manufacturing,Changzhou Vocational Institute of Engineering,Changzhou 213164,China;Jiangsu Kexiang Anticorrosive Materials Co.,Ltd,Changzhou 213100,China)
出处
《表面技术》
EI
CAS
CSCD
北大核心
2021年第10期117-125,139,共10页
Surface Technology
基金
国家自然科学基金项目(51875053)
常州市模具先进制造高技术研究重点实验室项目(CM20173001)
常州市科技应用基础研究计划项目(CJ20190041)
江苏科祥防腐材料有限公司资助项目(KYH20020270)。
关键词
石墨烯
复合涂层
电沉积
分散
性能
graphene
composite coating
electrodeposition
dispersion
performance
