Mechanically Robust Atomic Oxygen-Resistant Coatings Capable of Autonomously Healing Damage in Low Earth Orbit Space Environment
文献类型：期刊论文
| 作者 | Wang, XH; Li, YX; Qian, YH; Qi, H1; Li, JQ; Sun, J |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018-09-06 |
| 卷号 | 30期号:36页码:- |
| 关键词 | atomic oxygen materials science self-healing materials supramolecular polymers |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201803854 |
| 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. |
| 学科主题 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000443377100028 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79970]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, XH,Li, YX,Qian, YH,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):-. |
| APA | Wang, XH,Li, YX,Qian, YH,Qi, H,Li, JQ,&Sun, J.(2018).Mechanically Robust Atomic Oxygen-Resistant Coatings Capable of Autonomously Healing Damage in Low Earth Orbit Space Environment.ADVANCED MATERIALS,30(36),-. |
| MLA | Wang, XH,et al."Mechanically Robust Atomic Oxygen-Resistant Coatings Capable of Autonomously Healing Damage in Low Earth Orbit Space Environment".ADVANCED MATERIALS 30.36(2018):-. |
入库方式： OAI收割
来源：金属研究所
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