氧化石墨烯-多壁碳纳米管-漆酚甲醛聚合物制备及性能研究  

Fabrication and Properties of Graphene Oxide-Multi-walled Carbon Nanotube/Urushiol Formaldehyde Polymer Composite Coatings

作　　者：张磊[1] 赵冲林 ZHANG Lei;ZHAO Chonglin(Institute of Chemical Defense,Academy of Military Sciences,Beijing 102205,China)

机构地区：[1]军事科学院防化研究院,北京102205

出　　处：《防化研究》2023年第2期50-57,共8页CBRN DEFENSE

基　　金：国家重点研发计划项目:漆树丰产经营与精细产品开发(2017YFD0600705)。

摘　　要：本研究通过两步法制备了改性氧化石墨烯-多壁碳纳米管-漆酚甲醛聚合物(GOMWCNT/UFP)复合涂料。采用辊涂法将复合涂料应用于金属基材表面,进行结构性能表征,考察复合涂层的物理机械性能和耐电化学腐蚀性能。与纯漆酚缩甲醛(UFP)和MWCNT/UFP相比,GO-MWCNT/UFP复合涂层的物理力学性能(附着力和硬度)和抗电化学腐蚀性均得到明显改善。GO-MWCNT/UFP复合涂层的附着力等级和硬度分别达到1级和6H,腐蚀效率低至1.62×10^(−5),防腐效率高达99.70%。研究结果表明,GO(氧化石墨烯)通过共价键合与MWCNT结合,均匀分散于UFP中,明显提高了UFP涂层的物理力学性能和防腐蚀性。In this study,modified graphene oxide-multi-walled carbon nanotube/urushiol formaldehyde polymer(GO-MWCNT/UFP)composite coatings were prepared by a two-step method.The composite coatings were applied to the surface of metal substrate by roller coating method.The structural properties of the composite coatings were characterized.The physicomechanical properties and electrochemical corrosion resistance of the composite coatings were investigated.The physico-mechanical properties(adhesion and hardness)and electrochemical corrosion resistance of GO-MWCNT/UFP composite coatings are significantly enhanced compared to the pure urushiol formaldehyde polymers(UFPs)and MWCNTs/UFPs.The adhesion and hardness grade of GO-MWCNT/UFP composite coatings reaches 1 and 6H,respectively.The corrosion rate is as low as 1.62×10^(−5),and the protection efficiency is as high as 99.70%.It is shown that graphene oxide(GO)is linked to MWCNTs through covalent bonding and well dispersed in UFPs,which can significantly enhance the physico-mechanical properties and corrosion resistance of UFP coatings.It indicates that these composite coatings have great potential for use in applications on offshore steel structures.

关 键 词：氧化石墨烯 多壁碳纳米管 复合涂层 漆酚缩甲醛 耐碱性 物理力学性能 

分 类 号：TQ35[化学工程]