六方氮化硼负载纳米氧化铝复合填料的制备及改性环氧涂层的防腐性能研究  

Preparation of Hexagonal Boron Nitride Loaded Nano-alumina Composite Fillers and the Utility in Modifying Epoxy Corrosion Inhibition Coatings

作　　者：颜蜀雋 谭雅莉 庞忠荣 万鹏颖 齐福刚 YAN Shujun;TAN Yali;PANG Zhongrong;WAN Pengying;QI Fugang(National Energy Group Ningxia Coal Industry Co.,Ltd.,Yinchuan 750001,China;Hunan Bangzer Technology Co.,Ltd.,Xiangtan 411100,Hunan,China;School of Materials Science and Engineering,Xiangtan University,Xiangtan 411105,Hunan,China)

机构地区：[1]国家能源集团宁夏煤业有限责任公司,银川750001 [2]邦泽科技有限公司,湖南湘潭411105 [3]湘潭大学材料科学与工程学院,湖南湘潭411105

出　　处：《材料导报》2024年第20期297-302,共6页Materials Reports

基　　金：宁夏回族自治区宁东基地科技创新发展专项(2019NDKJLX0008);湖南省高新技术产业科技创新引领计划项目(2022GK4038)。

摘　　要：将γ-氨基丙基三乙氧基硅烷(KH550)改性的Al_(2)O_(3)纳米颗粒负载在覆盖有聚多巴胺(PDA)的六方氮化硼(h-BN)片层表面,合成了一种新型的PDA-BN@f-Al_(2)O_(3)复合材料,然后将其作为填料分散在环氧树脂中制备复合环氧涂层。结果表明,PDA-BN@f-Al_(2)O_(3)复合材料在环氧树脂中具有良好的分散性,并且表现出主动缓蚀的效果。添加质量分数为1%的PDA-BN@f-Al_(2)O_(3)复合材料的环氧涂层表现出良好的阻隔性能以及长效防腐的效果,其低频区的阻抗模量(|Z|_(0.01 Hz))比纯环氧涂层高三个数量级,同时复合涂层的柔韧性也得到提升。A novel PDA-BN@f-Al_(2)O_(3)nanohybrid was synthesized by depositing Al_(2)O_(3)nanoparticles modified withγ-aminopropyl triethoxysilane(KH550)on the surface of hexagonal boron nitride(h-BN)sheets covered by polydopamine(PDA).Then the PDA-BN@f-Al_(2)O_(3)hybrids was dispersed in epoxy resin to prepare composite coating samples.Various characterizations revealed that PDA-BN@f-Al_(2)O_(3)hybrids showed good dispersibility in the epoxy resin,and had a corrosion inhibitive performance.The epoxy coating added with 1wt%PDA-BN@f-Al_(2)O_(3)hybrids exhibited satisfactory performances of medium blocking and long-term corrosion resistance,as it achieved an impedance modulus in low frequency region(|Z|_(0.01 Hz))three-order-magnitude higher than that of the pure epoxy coating and an improvement in flexibility.

关 键 词：六方氮化硼 纳米氧化铝 复合材料 环氧树脂 耐腐蚀性能 

分 类 号：TQ638[化学工程—精细化工]