Bulk and surface properties of layered silicates/fluorinated polyimide nanocomposites

Liang You Jiang*, Kung-Hwa Wei

*Corresponding author for this work

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)6219-6223
Number of pages5
JournalJournal of Applied Physics
Volume92
Issue number10
DOIs
StatePublished - 15 Nov 2002

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