標題: Mechanical properties of clay-polyimide (BTDA-ODA) nanocomposites via ODA-modified organoclay
作者: Tyan, HL
Wei, KH
Hsieh, TE
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: clay;polyimide;nanocomposites;tensile mechanical;modulus
公開日期: 15-Nov-2000
摘要: Clay-polyimide [3,3', 4,4'-benzophenone tetracarboxylic dianhydride-4,4'-oxydianiline (BTDA-ODA)] nanocomposites were synthesized from ODA-modified montmorillonite (organoclay) and poly(amic acid). The layered silicates of organoclay were intercalated by polyimide (BTDA-ODA), as confirmed by X-ray diffraction and by transmission electron microscopy, and the tensile mechanical properties of the nanocomposites were measured. It was found that the modulus and the maximum stress of these organoclay/BTDA-ODA nanocomposites were much higher than those of pure BTDA-ODA: a twofold increase in the modulus and a one-half-fold increase in the maximum stress in the case of 7/93 organoclay-BTDA-ODA. In addition, the elongation-for-break of organoclay/BTDA-ODA nanocomposites is even slightly higher than that of pure BTDA-ODA, which is a sharp contrast to that of conventional inorganics-filled polymer composites. (C) 2000 John Wiley & Sons, Inc.
URI: http://hdl.handle.net/11536/30133
http://dx.doi.org/10.1002/1099-0488(20001115)38:22<2873
ISSN: 0887-6266
DOI: 10.1002/1099-0488(20001115)38:22<2873
期刊: JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Volume: 38
Issue: 22
起始頁: 2873
結束頁: 2878
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