[1]邬春雷,周海刚,郑 宁,等.doi: 10.3969/j.issn.1001-3849.2026.01.005自修复涂层用聚脲醛-桐油微胶囊的制备及性能[J].电镀与精饰,2026,(01):39-46.
　WU Chunlei,ZHOU Haigang,ZHENG Ning,et al.Preparation and properties of PUF-tung oil microcapsules for self-healing coating[J].Plating & Finishing,2026,(01):39-46.
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doi: 10.3969/j.issn.1001-3849.2026.01.005自修复涂层用聚脲醛-桐油微胶囊的制备及性能()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年01
页码:
39-46
栏目:
出版日期:
2026-01-31

文章信息/Info

Title:
Preparation and properties of PUF-tung oil microcapsules for self-healing coating
作者:
邬春雷1; 2; 周海刚1; 郑 宁1; 李资收3; 曹华平3; 魏 旭1; 王亭沂1
(1. 中国石油化工股份有限公司 胜利油田分公司技术检测中心,山东 东营,257088;2. 中国石油大学(华东)
Author(s):
WU Chunlei1; 2;  ZHOU Haigang1;  ZHENG Ning1;  LI Zishou3;  CAO Huaping3;  WEI Xu1;  WANG Tingyi1
(1. China Petroleum and Chemical Corporation, Shengli Oilfield Branch Technical Testing Center, Dongying 257088, China; 2. School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China; 3. Shengli Oilfield Luming Oil and Gas Exploration and Development Co., Ltd., Dongying 257099, China)
关键词:
微胶囊; 自修复涂层; 腐蚀与防护
Keywords:
microcapsules;  self-healing coating;  corrosion and protection
分类号:
TB304；TQ630
文献标志码:
A
摘要:
针对严苛腐蚀环境中涂层在服役过程中易破损、开裂的问题，采用原位聚合法成功制备聚脲醛-桐油微胶囊，并将其引入环氧树脂构建自修复防腐涂层。重点探究了乳化剂类型、芯壁比、酸化终点及乳化速率等关键参数对微胶囊形貌、粒径分布的调控机制。结果表明，采用吐温-80 为乳化剂、芯壁比为1.5﹕1、pH=3.5、乳化速度为400～600 r?min?1时可获得规则球形微胶囊，其热分解温度达280 ℃。傅里叶变换红外光谱在1 730?cm?1处特征峰的出现证实了桐油的成功包封。将微胶囊掺杂至环氧树脂后，划伤试样在12?h内通过桐油的氧化交联反应实现自主修复，电化学阻抗谱测试表明，修复后涂层的低频阻抗模值(|Z|0.01?Hz)提升至1.2×108Ω?cm2，相比于未添加微胶囊的破损涂层其阻抗值增幅达3个数量级，涂层破损区域的修复有效阻断了腐蚀介质的渗透路径。该研究为开发兼具高效自修复特性和长效防腐性能的智能防护涂层提供了新的设计思路和技术支撑。
Abstract:
To address the issue of coating damage and cracking during service in harsh corrosive environments, polyurea-formaldehyde-tung oil microcapsules were successfully prepared by in-situ polymerization method and introduced into epoxy resin to construct self-healing anti-corrosion coatings. The key parameters such as emulsifier type, core-shell ratio, acidification endpoint, and emulsification rate were explored to investigate the regulatory mechanism of microcapsule morphology and particle size distribution. Results show that regular spherical microcapsules with a thermal decomposition temperature of 280 ℃ can be obtained when using Tween-80 as the emulsifier, a core-wall ratio of 1.5 ﹕1, pH of 3.5, and an emulsification speed of 400~600 r?min?1. The characteristic peak at 1 730?cm?1 in the Fourier transform infrared spectrum confirms the successful encapsulation of tung oil. When doped into epoxy resin, scratched samples achieve autonomous repair within 1 2?hours through the oxidative cross-linking of tung oil. Electrochemical impedance spectroscopy tests show that the low-frequency impedance modulus (|Z|0.01?Hz) of the repaired coating increases to 1.2×108Ω?cm2, three orders of magnitude higher than damaged coatings without microcapsules. The repair of the damaged area effectively blocks the penetration path of corrosive media. This study provides new design ideas and technical support for developing intelligent protective coatings with both high-efficiency self-healing capability and long-term anti-corrosion performance

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更新日期/Last Update: 2026-01-16