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)
作者单位
刘丹 中国科学院金属研究所 核用材料与安全评价重点实验室,沈阳 110016 
宋影伟 中国科学院金属研究所 核用材料与安全评价重点实验室,沈阳 110016 
单大勇 中国科学院金属研究所 核用材料与安全评价重点实验室,沈阳 110016 
韩恩厚 中国科学院金属研究所 核用材料与安全评价重点实验室,沈阳 110016 
AuthorInstitution
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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