Atomic oxygen erosion resistance of polyimide/ZrO2 hybrid films

作者：Xiao Fei; Wang Kai^*; Zhan Maosheng

来源：Applied Surface Science, 2010, 256(24): 7384-7388.

DOI：10.1016/j.apsusc.2010.05.077

• Polyimide
• Zirconia
• Atomic oxygen
• XPS
• Low earth orbit

A series of polyimide/zirconia (PI/ZrO2) hybrid films were synthesized based on zirconium n-butoxide, pyromellitic acid dianhydride (PMDA) and 4,4'-oxydianiline (ODA) by a sol-gel process. The atomic oxygen (AO) exposure tests were carried out using a ground-based atomic oxygen effects simulation facility. The effects of ZrO2 content on the morphology and structure evolvement of PI/ZrO2 hybrid films were investigated using field emission scanning electron microscopy (FE-SEM) and X-ray photoelectron spectrometer (XPS), respectively. The results indicated that a zirconia-rich layer was formed on the polyimide film sourcing from the zirconium n-butoxide after AO exposure, which decreased the erosion rate and obviously improved the AO resistance of polyimide films.

• 出版日期2010-10-1
• 单位北京航空航天大学