Polydimethylsiloxane/silica hybrid coatings protecting Kapton from atomic oxygen attack

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	Polydimethylsiloxane/silica hybrid coatings protecting Kapton from atomic oxygen attack
	S. W. Duo; M. S. Li; M. Zhu; Y. C. Zhou
	2008
发表期刊	Materials Chemistry and Physics
ISSN	0254-0584
卷号	112 期号:3 页码:1093-1098
摘要	In order to improve the erosion resistance of spacecraft materials in atomic oxygen (AO) environments, a kind of polydimethylsiloxane (PDMS)/SiO(2) hybrid coatings has been prepared on Kapton by a sol-gel process. The tetraethoxysilane (TEOS) and silanol-terminated PDMS were used as two main precursors. The content of inorganic silica in the PDMS/SiO(2) hybrid coatings varied, achieving a maximum value of 40 wt% under the addition of a coupling agent. The PDMS/SiO(2) hybrid coatings possessed good adhesion and flexibility, improved thermal stability. The AO resistance of the hybrid coatings was investigated by exposure tests in the AO simulator. The results showed that the hybrid coatings had excellent AO resistance. The PDMS/SiO(2) (20 wt%) hybrid coating had an erosion rate two orders of magnitude slower than the polyimide film, and did not crack during AO exposure. The coating performance was also found to improve with increasing SiO(2) content. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[duo, shuwang; li, meishuan; zhu, ming; zhou, yanchun] chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. [duo, shuwang] jiangxi sci & technol normal univ, jiangxi key lab surface engn, nanchang 330013, peoples r china.;li, ms (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;mshli@imr.ac.cn
关键词	Polymers Atomic Oxygen Coatings Corrosion Thermal-stability Ormosils Silica Resistance Beam Film
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WOS记录号	WOS:000262183900068
引用统计	被引频次：67[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32731
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. W. Duo,M. S. Li,M. Zhu,et al. Polydimethylsiloxane/silica hybrid coatings protecting Kapton from atomic oxygen attack[J]. Materials Chemistry and Physics,2008,112(3):1093-1098.
APA	S. W. Duo,M. S. Li,M. Zhu,&Y. C. Zhou.(2008).Polydimethylsiloxane/silica hybrid coatings protecting Kapton from atomic oxygen attack.Materials Chemistry and Physics,112(3),1093-1098.
MLA	S. W. Duo,et al."Polydimethylsiloxane/silica hybrid coatings protecting Kapton from atomic oxygen attack".Materials Chemistry and Physics 112.3(2008):1093-1098.