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Volume 38 Issue 12
Dec.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  38(12): 1666-1670.
Yuan Jian, Zhao Xiaohu. Experimental study on improving AO-resistance of resin using sol-gel method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(12): 1666-1670. (in Chinese)
Citation: Yuan Jian, Zhao Xiaohu. Experimental study on improving AO-resistance of resin using sol-gel method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(12): 1666-1670. (in Chinese)
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Experimental study on improving AO-resistance of resin using sol-gel method

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 01 Sep 2011
  • Publish Date: 30 Dec 2012
    Abstract
  • To improve the atomic oxygen (AO) resistance of the resin in low earth orbit, tetraethyl orthosilicate (TEOS) was added into the epoxy resin(EP) solution. The inorganic phases of SiO2 was in-situ generated using sol-gel method and the SiO2/EP hybrid materials were obtained. The ground-based simulation experiments were carried out to evaluate the AO-resistance of the SiO2/EP hybrid materials. The mass, surface morphology and the surface composition of the samples were compared before and after the AO experiments. The improving mechanism of the AO-resistance was analyzed. There are two essential reasons of the AO-resistance of the hybrid material that the silicones and silica were generated in the resin matrix during sol-gel process and the silica protective coating was formed on the sample surface in AO environment.

     

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