Mechanically Robust Atomic Oxygen-Resistant Coatings Capable of Autonomously Healing Damage in Low Earth Orbit Space Environment

doi:10.1002/adma.201803854

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	Mechanically Robust Atomic Oxygen-Resistant Coatings Capable of Autonomously Healing Damage in Low Earth Orbit Space Environment
	Wang, Xiaohan 2; Li, Yixuan 2; Qian, Yuhai 1; Qi, Hong 1; Li, Jian 2; Sun, Junqi 2
刊名	ADVANCED MATERIALS
	2018-09-06
卷号	30 期号:36 页码:7
关键词	atomic oxygen materials science self-healing materials supramolecular polymers
ISSN号	0935-9648
DOI	10.1002/adma.201803854
通讯作者	Sun, Junqi(sun_junqi@jlu.edu.cn)
英文摘要	Polymeric materials used in spacecraft require to be protected with an atomic oxygen (AO)-resistant layer because AO can degrade these polymers when spacecraft serves in low earth orbit (LEO) environment. However, mechanical damage on AO-resistant coatings can expose the underlying polymers to AO erosion, shortening their service life. In this study, the fabrication of durable AO-resistant coatings that are capable of autonomously healing mechanical damage under LEO environment is presented. The self-healing AO-resistant coatings are comprised of 2-ureido-4[1H]-pyrimidinone (UPy)-functionalized polyhedral oligomeric silsesquioxane (POSS) (denoted as UPy-POSS) that forms hydrogen-bonded three-dimensional supramolecular polymers. The UPy-POSS supramolecular polymers can be conveniently deposited on polyimides by a hot pressing process. The UPy-POSS polymeric coatings are mechanically robust, thermally stable, and transparent and have a strong adhesion toward polyimides to endure repeated bending/unbending treatments and thermal cycling. The UPy-POSS polymeric coatings exhibit excellent AO attack resistance because of the formation of epidermal SiO2 layer after AO exposure. Due to the reversibility of the quadruple hydrogen bonds between UPy motifs, the UPy-POSS polymeric coatings can rapidly heal mechanical damage such as cracks at 80 degrees C or under LEO environment to restore their original AO-resistant function.
资助项目	National Natural Science Foundation of China (NSFC)[21774049] ; Program for JLU Science and Technology Innovative Research Team[2017TD-10]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000443377100028
资助机构	National Natural Science Foundation of China (NSFC) ; Program for JLU Science and Technology Innovative Research Team
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/129249]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sun, Junqi
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaohan,Li, Yixuan,Qian, Yuhai,et al. Mechanically Robust Atomic Oxygen-Resistant Coatings Capable of Autonomously Healing Damage in Low Earth Orbit Space Environment[J]. ADVANCED MATERIALS,2018,30(36):7.
APA	Wang, Xiaohan,Li, Yixuan,Qian, Yuhai,Qi, Hong,Li, Jian,&Sun, Junqi.(2018).Mechanically Robust Atomic Oxygen-Resistant Coatings Capable of Autonomously Healing Damage in Low Earth Orbit Space Environment.ADVANCED MATERIALS,30(36),7.
MLA	Wang, Xiaohan,et al."Mechanically Robust Atomic Oxygen-Resistant Coatings Capable of Autonomously Healing Damage in Low Earth Orbit Space Environment".ADVANCED MATERIALS 30.36(2018):7.