Volume 35 Issue 7
Jul.  2009
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Wang Jing, Li Weiping, Chen Yichi, et al. Anti-atomic oxygen properties of silicone coating modified by nano-ZnO[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(7): 824-827. (in Chinese)
Citation: Wang Jing, Li Weiping, Chen Yichi, et al. Anti-atomic oxygen properties of silicone coating modified by nano-ZnO[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(7): 824-827. (in Chinese)

Anti-atomic oxygen properties of silicone coating modified by nano-ZnO

  • Received Date: 16 Jun 2008
  • Publish Date: 31 Jul 2009
  • To improve the anti-atomic oxygen properties of silicone coating, nano-ZnO modified by silane coupling reagent was filled in the silicone resin and nano-ZnO/silicone composite coating on polyimide film was obtained. Polyimide with and without nano-ZnO/silicone coating was exposed to atomic oxygen(AO) in a ground-based AO effect simulation facility. The modified nano-ZnO particles were uniformly distributed within the silicone coating so that micro-cracks occurred during film-forming of the silicone were eliminated effectively. The AO experiment results indicate that polyimide is significantly eroded which is characterized by substantial weight loss and change of surface morphologies; nano-ZnO/silicone coatings exhibit excellent properties for anti-atomic oxygen effects with little variation in weight or morphology. The anti-oxygen properties of the coatings were improved along with the increase of nano-ZnO content.

     

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