Bulk and surface properties of layered silicates/fluorinated polyimide nanocomposites

被引：14

作者：

Jiang, LY ^{[1
]}

Wei, KH ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30049, Taiwan

来源：

JOURNAL OF APPLIED PHYSICS | 2002年 / 92卷 / 10期

关键词：

D O I：

10.1063/1.1516268

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Intercalated layered silicates/fluorinated polyimide nanocomposites with good overall properties are synthesized from organics-modified-montmorillonite and poly(amic acid), as confirmed by x-ray and transmission electron microscopy results. Both the bulk and surface (nanometer-domain) mechanical properties of synthesized silicates/fluorinated polyimide nanocomposites increased substantially as compared to that of pure polyimide. In particular, the Young's modulus and surface hardness of the fluorinated polyimide containing 5 wt % 2NH(2)-mont are 69% and 100% larger than that of pure polyimide, respectively. Additionally, the reduced elastic modulus by nanoindentation of the nanocomposites is 74% larger than that of the pure polyimide. The barrier properties of the nanocomposites, such as thermal expansion and water absorption retardation, are enhanced. (C) 2002 American Institute of Physics.

引用

页码：6219 / 6223

页数：5

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