孙议祥,王尧,满成,崔中雨,王昕,董超芳.低温固化AMT–GO/EP复合涂层的制备及防腐性能研究[J].表面技术,2022,51(7):169-175, 185.
SUN Yi-xiang,WANG Yao,MAN Cheng,CUI Zhong-yu,WANG Xin,DONG Chao-fang.Preparation and Protection Performance of AMT-GO/EP Coating Cured at Low Temperature[J].Surface Technology,2022,51(7):169-175, 185
低温固化AMT–GO/EP复合涂层的制备及防腐性能研究
Preparation and Protection Performance of AMT-GO/EP Coating Cured at Low Temperature
  
DOI:10.16490/j.cnki.issn.1001-3660.2022.07.016
中文关键词:  氧化石墨烯  2–氨基–5巯基–1,3,4噻二唑  低温失效机理  低温-盐雾交替试验  低温固化
英文关键词:graphene oxide  5-amino-1,3,4-thiadiazole-2-thiol  low-temperature failure mechanism  alternative test  low-temperature curing
基金项目:国家重点研发计划(2021YFE011400);国家自然科学基金(51901216)
作者单位
孙议祥 中国海洋大学 材料科学与工程学院,山东 青岛 266100 
王尧 中国海洋大学 材料科学与工程学院,山东 青岛 266100 
满成 中国海洋大学 材料科学与工程学院,山东 青岛 266100 
崔中雨 中国海洋大学 材料科学与工程学院,山东 青岛 266100 
王昕 中国海洋大学 材料科学与工程学院,山东 青岛 266100 
董超芳 北京科技大学 新材料技术研究院,北京 100083 
AuthorInstitution
SUN Yi-xiang School of Materials Science and Engineering, Ocean University of China, Shandong Qingdao 266100, China 
WANG Yao School of Materials Science and Engineering, Ocean University of China, Shandong Qingdao 266100, China 
MAN Cheng School of Materials Science and Engineering, Ocean University of China, Shandong Qingdao 266100, China 
CUI Zhong-yu School of Materials Science and Engineering, Ocean University of China, Shandong Qingdao 266100, China 
WANG Xin School of Materials Science and Engineering, Ocean University of China, Shandong Qingdao 266100, China 
DONG Chao-fang Institute for Advanced Materials and Technology, University of Science and Technology of Beijing, Beijing 100083, China 
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中文摘要:
      目的 研究‒10 ℃下固化的复合涂层在常温和低温环境下的防腐性能。方法 通过溶液共混法成功制备了2–氨基–5巯基–1,3,4噻二唑修饰的氧化石墨烯(AMT–GO),并将其作为填料添加到环氧树脂(EP)中,随后在‒10 ℃环境下进行固化,形成AMT–GO/EP复合涂层。同时,制备纯环氧涂层(纯EP)和氧化石墨烯增强环氧涂层(GO/EP)作为对照。通过盐雾试验、低温–盐雾交替试验、附着力测试和吸水率测试等方法研究了低温固化涂层的防腐性能。结果 加入AMT–GO填料的环氧涂层在‒10 ℃的环境下经过72 h后可良好固化,形成更致密的交联结构,在6 d的中性盐雾试验后仍具备良好的防腐性能。该涂层的吸水率(2.77%)约为纯环氧涂层(5%)的一半,其附着力(5.53 MPa)大于纯环氧涂层的附着力(4.01 MPa)。结论 AMT可以有效地改善氧化石墨烯在环氧涂层中的分散性,在环氧涂层中添加一定量的AMT–GO可以提高低温固化涂层的交联密度,有效阻碍了腐蚀介质的渗透过程,提高了涂层的防腐性能。另外,该涂层在低温–盐雾交替试验中仍保持十分优异的防腐性能。
英文摘要:
      This work aims to improve the corrosion resistance of epoxy resin cured at ‒10 ℃. Herein, 5-Amino-1,3,4- thiadiazole-2-thiol modified graphene oxide (AMT-GO) were successfully prepared by solution blending method. The same amount of graphene oxide (GO) and AMT-GO fillers were introduced into epoxy resin, which cured at low temperature (‒10 ℃). The corrosion protection performance of the coatings cured at low temperature was studied by salt spray test, low temperature-salt spray alternating test, adhesion test and water absorption test. The epoxy coating with the right amount of AMT-GO filler can cure well at ‒10 ℃ after 72 h, forming a more compact cross-linked structure, and still has good anti-corrosion performance after 6 days of salt spray test. The water absorption of the AMT-GO/EP (2.77%) is about half of that of the pure epoxy coating (5%), and the adhesion of the AMT-GO/EP (5.53 MPa) is higher than that of the pure epoxy coating (4.01 MPa). AMT-GO can effectively prevent the infiltration process of corrosive medium, to improve the anti-corrosion coating performance. Besides, the coating will remain in the low temperature-salt alternating fog test is excellent anticorrosion performance.
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