Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 17, Issue 1, Pages 77-82Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2010.10.012
Keywords
Surface modification; Illite; Composite; Thermal stability
Funding
- Korea Small and Medium Business Administration
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In this study, the effects of physicochemical treatments of illite on thermo-mechanical properties and thermal stability of the hybrid illite/epoxy composites were investigated. Illite was chemically modified with octadecylamine (ODA), to become more organophilic and also physically modified by wet ball-milling process, so that the illite dispersion in the epoxy matrix and interfacial adhesion between illite and epoxy resin could be improved. Then, as-received illite and physically and/or chemically modified illites were mixed with epoxy separately to produce hybrid illite/epoxy composites and their thermo-mechanical properties and thermal stability were investigated. Chemical modification was confirmed with FTIR and the aforementioned properties of illite/epoxy composites were characterized with SEM, DMA, and TGA. IR results show that ODA modification of illite was successful and thermo-mechanical properties were enhanced with illite introduction to the epoxy resin, especially when physically and chemically modified illite was added, showing about 100% increase in storage and loss modulus, compared to the pure epoxy. However, thermal stability was not enhanced by forming the illite/epoxy composites, because the composites prepared in this study were intercalated and flocculated illite/epoxy microcomposites. (C) 2010 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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