表面技术2017，Vol.46Issue(12)：84-90,7.DOI:10.16490/j.cnki.issn.1001-3660.2017.12.015
含环氧树脂微胶囊自修复涂层的制备及其性能
Preparation and Properties of Self-healing Coatings Containing Epoxy Resin Microcapsules
摘要
Abstract
The work aims to prepare binary self-healing coating containing epoxy resin microcapsules and study mechanical properties self-healing property of the coating. The binary self-healing epoxy coating was prepared by adding self-made epoxy resin E-51/urea-melamine-formaldehyde microcapsules and latent curing agent (2-methylimidazole) to epoxy resin matrix in certain proportion. Bending property, impact resistance and tensile strength of the coating were tested with paint film elasticity testing machine, paint film impact testing machine and universal tensile testing machine. Self-healing property of the coating was investigated with OM and SEM. Electrochemical property was tested with EIS. The binary self-healing coating containing epoxy resin microcapsules was successfully prepared. When the microcapsules content in the coating reached 3%, the impact strength and tensile strength of the coating increased by 10.6% and 14.6%, respectively. When the 2-methylimidazole and mi-crocapsules content was 6% and 5%, respectively, the self-healing property of the coating was excellent. When the microcap-sules content in the coating was 9%, electrochemical impedance value of the coating was up to 1.2×105ohms. The addition of microcapsules can effectively improve the impact strength and tensile strength of the coating. As the content of latent curing agent increases in the coating, the self-healing property of the coating gradually improves. When the content of latent curing agent reaches a certain value, the self-healing property of the coating improves as the microcapsules content increases in the coating. The electrochemical impedance value of the coating increases with the increase of microcapsules content.关键词
微胶囊/潜伏型固化剂/环氧树脂/自修复涂层Key words
microcapsules/latent curing agent/epoxy resin/self-healing coating分类
矿业与冶金引用本文复制引用
童晓梅,郝芹芹,闫子英,袁梦..含环氧树脂微胶囊自修复涂层的制备及其性能[J].表面技术,2017,46(12):84-90,7.基金项目
陕西省教育厅专项科研计划项目(16JK1110) （16JK1110）
咸阳市科学技术研究计划项目(2015k02-18) （2015k02-18）
陕西科技大学博士启动基金(BJ12-06)Supported by the Special Research Project of Department of Education of Shaanxi Province (16JK1110), the Science and Technology Research Project of Xianyang (2015k02-18) and the Doctor Startup Funds of Shaanxi University of Science and Technology (BJ12-06) （BJ12-06）
