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- Title
Surface modification of carbon fiber and the mechanical properties of the silicone rubber/carbon fiber composites.
- Authors
Kim, Eung Soo; Lee, Tae Hwa; Kim, Eun Jeong; Yoon, Jin-San
- Abstract
Effects of the incorporation of the PAN-based carbon fiber (CF) into a room temperature vulcanized silicone rubber (RTV), poly(dimethylsiloxane) (PDMS) containing terminal silanol groups, on the thermal stability and mechanical properties were explored. CF was modified with nitric acid to introduce hydroxyl and carboxyl groups on the CF surface. These functional groups were then treated with an isocyanato silane compound, 3-isocyanatopropyltriethoxysiane (IPTS) to incorporate trialkoxy groups to the acid-treated CF to prepare IPTS grafted CF (I-CF). The alkoxy groups on the surface of I-CF may undergo the condensation reaction with the silanol groups of RTV to enhance the interfacial interaction between I-CF and RTV. Morphology of the fractured surface of RTV/CF composites was examined by scanning electron microscopy (SEM). The mechanical properties and thermal stability of the composites were analyzed and rationalized by the increase in the degree of curing of RTV and the enhanced interfacial interaction. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
- Subjects
SURFACE chemistry; CARBON fibers; MECHANICAL behavior of materials; SILICONE rubber; COMPOSITE materials; TEMPERATURE effect; SILANOLS; THERMAL properties
- Publication
Journal of Applied Polymer Science, 2012, Vol 126, Issue S2, pE410
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.36959