有机硅烷提高航天器树脂材料抗原子氧剥蚀

王鑫; 赵小虎; 沈志刚

有机硅烷提高航天器树脂材料抗原子氧剥蚀

北京航空航天大学航空科学与工程学院, 北京 100083

基金项目: 国家863高技术航天领域资助项目 (2004AA732157); 北京市教委共建项目建设计划资助项目

详细信息

中图分类号: V 258
计量
- 文章访问数: 3356
- HTML全文浏览量: 167
- PDF下载量: 766
- 被引次数: 0
出版历程
- 收稿日期: 2005-09-23
- 网络出版日期: 2006-08-31

Improving the atomic oxygen resistance of epoxy resin using organosilicon

School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 为了提高航天器树脂材料的抗原子氧剥蚀的性能,把缩水甘油醚氧丙基三甲氧基硅烷加入到环氧树脂中,并对所制成的环氧树脂试样进行原子氧效应地面模拟试验,对试验前后试样的质量损失、表面形貌、表面成分和结构的变化进行了对比和分析.结果表明,添加有机硅烷可以有效地提高环氧树脂的抗原子氧剥蚀性能,试样表面在原子氧的作用下生成了一种三维网状结构,该结构有效地阻止了原子氧对底层材料的进一步剥蚀,使试样的质量损失和剥蚀率明显下降.50h实验之后,添加了质量分数为25.0%的有机硅烷,该材料的剥蚀率约为纯环氧树脂的25%.
- 有机硅烷 /
- 环氧树脂 /
- 航天器 /
- 抗原子氧剥蚀
Abstract: To improve the atomic oxygen(AO) erosion resistance of resin matrix materials applied to spacecrafts, γ-Glycidoxypropyltrimethoxy silane was filledin the epoxy resin with a direct-mixing method and then the AO exposure experiments were carried out. After the AO exposure, a three-dimension network structure was formed on the sample surfaces. This network structure protected the underlying materials from the AO erosion and the AO resistance of the polymer was improved remarkably; the mass loss and erosion yield decreased distinctly. It proves that filling the organosilicon in the epoxy resin is an effective method to improve AO resistance of the epoxy resin. After AO exposure for 50 h, the erosion yield of the polymer containing 25.0% organosilicon decreased to 25% of that of the pristine epoxy resin.
- silane /
- epoxy resins /
- spacecraft /
- atomic oxygen resistance

HTML全文

参考文献(1)

[1] Silverman E M. Spacecraft environmental effects on spacecraft:LEO materials selection guide . NASA CR-4661, California:TRW Space & Electronic Group, 1996 [2] Packirisamy S, Schwam D, Litt M H. Atomic oxygen resistant coatings for low earth orbit space structures[J]. Journal of Materials Science, 1995, 30:308-320 [3] de Groh K K, Banks B A. Atomic-oxygen undercutting of long duration exposure facility aluminized-kapton multilayer insulation [J]. Journal of Spacecraft and Rockets, 1994, 31(4):656-664 [4] Banks B A, Rutledge S K, Auer B M, et al. Atomic oxygen undercutting of defects on SiO₂ protected polyimide solar blankets Srinivasan V, Banks B A. Proceedings of a Symposium Sponsored by the TMS-ASM Joint Corrosion and Environmental Effects Committee. Pennsylvania:Warrendale, 1990:15-33 [5] Illingsworth M L, Betancourt J A, He L, et al. Zr-containing 4, 4′-ODA/PMDA Polyimide Composites . NASA TM-2001-211099, 2001 [6] Kiefer R L, Orwoll R A, Aquino E C, et al. The effects of atomic oxygen on polymer films containing bis(triphenyltin) oxide [J]. Polymer Degradation and Stability, 1997, 57:219-226 [7] Hseih D T, Lloxyd T B. Nanocomposite approach to enhance the atomic oxygen resistance Kliger H S, Rasmussen B M, Pilato L A, et al., 43rd International SAMPE Symposium and Exhibition on Materials and Process Affordability-Keys to the Future. Pennsylvania:Warrendale, 1998:1170-1177 [8] 王明珠,赵小虎,沈志刚,等,空心微珠用于环氧树脂抗原子氧剥蚀试验研究[J].北京航空航天大学学报,2004,30(8):713-717 Wang Mingzhu, Zhao Xiaohu, Shen Zhigang, et al. Experimental investigations on improvement of AO-resistant of epoxy resin by filled with superfine cenospheres [J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(8):713-717(in Chinese) [9] 沈志刚,赵小虎,陈军,等,灯丝放电磁场约束型原子氧效应地面模拟试验设备[J].航空学报,2000,21(5):425-430 Shen Zhigang, Zhao Xiaohu, Chen Jun, et al. Ground-based atomic oxygen effects simulation facility with the filament discharge and bound of magnetic field[J]. Acta Aeronautica et Astronautica Sinica, 2000, 21(5):425-430 (in Chinese)

施引文献

资源附件(0)

访问统计