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Research on interface and fractal characteristics of PI/Al-2 O-3 Films by SAXS
Liu, XX; Yin, JH; Cheng WD(程伟东); Wu ZH(吴忠华); Cheng, WD; Bu, WB; Fan, Y; Wu, ZH
2011
发表期刊ACTA PHYSICA SINICA
卷号60期号:5页码:56101
通讯作者[Liu Xiao-Xu ; Yin Jing-Hua ; Bu Wen-Bin ; Fan Yong] Harbin Univ Sci & Technol, Sch Appl Sci, Harbin 150080, Peoples R China ; [Liu Xiao-Xu] Heilongjiang Inst Sci & Technol, Harbin 150027, Peoples R China ; [Cheng Wei-Dong ; Wu Zhong-Hua] Chinese Acad Sci, BSRF Inst High Energy Phys, Beijing 100049, Peoples R China ; [Yin Jing-Hua] Minist Educ, Key Lab Engn Dielect & Its Applicat, Harbin 150080, Peoples R China
摘要Inorganic nano-composite polyimide (PI) films were prepared with the method of sol-gel. The interfacial situation and the fractal characteristics of PI films were investigated by small angle X-ray scattering (SAXS) using synchrotron radiation as X-ray source. SAXS results indicated that the scattering curves in the high-angle region have a negative slope, i. e., a negative deviation from Porod's law, which suggests that there are obvious interface layers between the organic phase and the inorganic phase in the PI films. The thicknesses of interface layers are 0.54-1.48 nm. The interaction of the organic phase and inorganic phase becomes stronger and the thickness of interfacial layer increases with the increase of inorganic nano-components. Nano-particles have mass fractal, simultaneously have surface fractal structure, and their distribution and assemblage are nonlinear dynamic processes. With the inorganic nano-components increasing, the surface fractal dimension increases and mass fractal dimension decreases, which shows that the nano-particles structure,becomes looser and mass distribution becomes more uneven. The anchoring action of polymer chains is enhanced and the number of anchored point increased respectively, the surface of the hybrid PI films becomes rougher. Finally, according to the interface characteristics of hybrid PI films, the relationship of the breakdown field strength with component is analyzed by percolation theory and polarization theory.
文章类型Article
关键词SASX nano-hybrid polyimide interface
学科领域Physics
研究领域[WOS]Physics
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语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000291239700077
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240700
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Liu, XX,Yin, JH,Cheng WD,et al. Research on interface and fractal characteristics of PI/Al-2 O-3 Films by SAXS[J]. ACTA PHYSICA SINICA,2011,60(5):56101.
APA Liu, XX.,Yin, JH.,程伟东.,吴忠华.,Cheng, WD.,...&Wu, ZH.(2011).Research on interface and fractal characteristics of PI/Al-2 O-3 Films by SAXS.ACTA PHYSICA SINICA,60(5),56101.
MLA Liu, XX,et al."Research on interface and fractal characteristics of PI/Al-2 O-3 Films by SAXS".ACTA PHYSICA SINICA 60.5(2011):56101.
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