摘要
为了提高航天器树脂材料的抗原子氧剥蚀的性能,把氨丙基三乙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。60小时实验之后,添加11.8wt%有机硅烷材料的剥蚀率约为纯环氧树脂的34%。
To improve the atomie oxygen （AO） erosion resistance of resin matrix materials applied to spacecrafts, γ-Amin- opropyltriethuxy silanc was filled in 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 proteeted the underlying materials from the AO erosion and the AO resistance of the polymer was improved remarkably ; the mass lnss and erosion yield decreased distinctly. It proves that filling the organosilieon in the epoxy resin is an effective method to improve AO resistance of the epoxy resin. After AO exposure for 60h, the erosion yieht of the polymer containing 11.8wt% organosilicon decreased to 34 % of that of the pristine epoxy resin.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2006年第5期1113-1117,共5页
Journal of Astronautics
基金
国家863高技术航天领域资助项目(2004AA732157)
武器装备预研基金资助项目(51420090405HK0140)
北京市教委共建项目建设计划资助
