刘丹,宋影伟,单大勇,韩恩厚.镁合金自修复涂层研究进展[J].表面技术,2016,45(12):28-35.
LIU Dan,SONG Ying-wei,SHAN Da-yong,HAN En-hou.Self-healing Coatings for Magnesium Alloys: A Review[J].Surface Technology,2016,45(12):28-35 |
| 镁合金自修复涂层研究进展 |
| Self-healing Coatings for Magnesium Alloys: A Review |
| 投稿时间：2016-02-21 修订日期：2016-12-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2016.12.005 |
| 中文关键词: 自修复 涂层 镁合金 腐蚀 设计 |
| 英文关键词:self-healing coatings magnesium alloys corrosion design |
| 基金项目:辽宁“百千万人才工程”项目；国家重点基础研究发展计划项目（2013CB632205） |
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| Author | Institution |
| LIU Dan | Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
| SONG Ying-wei | Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
| SHAN Da-yong | Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
| HAN En-hou | Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| 中文摘要: |
| 镁合金的耐蚀性较差，使用过程常需要防护涂层。然而，涂层在使用过程中不可避免地遭到破坏，亟需开发自修复涂层以防止涂层破坏处的局部腐蚀。结合国内外在自修复涂层尤其是镁合金自修复涂层领域的研究成果，总结了自修复涂层的类型，包括化学转化膜型、掺杂型、填充型、微容器型、层层组装型和超分子本质修复型等。其中化学转化膜型承载的修复剂有限；掺杂型工艺简单，但可能降低涂层的稳定性；填充型可以减少修复剂对涂层稳定性的影响，但是可能降低层间结合力；微容器型可以阻隔涂层基体和修复剂，但需要满足多种条件；层层组装型能承载更多修复剂且修复过程更加智能；超分子本质修复型可以实现多次修复，但是修复过程常需要外部能量输入。通过比较各类涂层的特点，为研究者设计自修复涂层提供参考，并指出自修复涂层的设计需要根据实际情况，综合各类涂层的特点，完成修复剂的成功封装与释放，在保证涂层屏蔽性的基础上，赋予涂层自修复能力。 |
| 英文摘要: |
| The corrosion resistance of magnesium alloys is poor, and coatings are required for actual applications. However, coatings are inevitably damaged during use. Thus, self-healing coatings shall be developed to avoid local corrosion of damaged spot on the coatings. By combining research achievements home and abroad in self-healing coating, especially for magnesium alloys, types of self-healing coatings including ichemical conversion coatings, mixed coatings, pore-filled coatings, micro-container coatings, layer-by-layer-assembled coatings and supramolecular intrinsic healing coatings were summarized. Chemical conversion coatings could only bear limited healing agents; mixed coating could be prepared by simple process but it might deteriorate stability of the coatings; pore-filled coatings could reduce the impact of healing agents on the coatings stability, but it may weaken the adhesion between porous coating and top coating; micro-container coatings could isloate healing agents from coating substrates, but it should meet many conditions; layer-by-layer-assembled coatings could bear more healing agents and its healing process was more intelligent; intrinsic supramolecular polymer could heal the same place for several times, but the healing process usually required external energy input. The characteristics of all self-healing coatings were compared to provide reference for researchers in designing self-healing coatings. In addition, the self-healing coatings should be designed based on the actual demands and self-healing agents should be sealed and released smoothly by allowing for characteristics of various coatings, so as to provide good self-healing capability for coatings while the shielding property was guaranteed. |
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