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 |
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| 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) |
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| Author | Institution |
| 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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