Role of Interface on Dynamic Modulus of High-Performance Poly(etheretherketone)/Ceramic Composites
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Title |
Role of Interface on Dynamic Modulus of High-Performance Poly(etheretherketone)/Ceramic Composites
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Creator |
GOYAL, RK
TIWARI, AN NEGI, YS |
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Subject |
REINFORCED POLYMER COMPOSITES
ETHER KETONE) COMPOSITES PARTICLE-SIZE DEPENDENCE MECHANICAL-PROPERTIES FILLED POLYMERS THERMOMECHANICAL PROPERTIES THERMAL-CONDUCTIVITY GLASS-TRANSITION ALUMINUM NITRIDE EPOXY COMPOSITES dynamic mechanical properties polymer-matrix composites interface scanning electron microscope electronic packaging |
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Description |
High-performance printed circuit board or electronic packaging substrate with low warping particularly at high frequency is the key demand of manufacturers. In the present work, poly(etheretherketone) (PEEK) matrix composites reinforced with untreated micron size aluminum nitride (AlN) and alumina (Al(2)O(3)) particles have been studied for dynamic modulus in the temperature range varying from 30 to 250 degrees C. At 48 vol % particles, the room temperature modulus of the PEEK/AlN composites increased by approximately fivefold (similar to 23 GPa), whereas it increased by twofold for PEEK/Al(2)O(3) composite. The reinforcing efficiency is more pronounced at higher temperatures. The significant improvement in modulus was attributed to the better adhesion between the matrix and the AlN particles. Scanning electron microscope (SEM) and Kubat parameter showed that the poor adhesion between the matrix and the Al(2)O(3) particles resulted in comparatively smaller increase in modulus of PEEK/Al(2)O(3), despite higher intrinsic modulus of Al(2)O(3) than that of AlN. SEM showed almost uniform distribution of particles in the matrix. The experimental data were correlated with several theoretical models. The Halpin-Tsai model with xi (xi) is equal to four correlates well up to 48 vol % AlN composites while xi is equal to two correlates only up to 18 vol % Al(2)O(3) composites. Guth-Smallwood model also correlates well up to 28 vol % AlN and 18 vol % Al(2)O(3)-filled composites. Thereafter, data deviated from it due to the particles tendency to aggregate formation. (c) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 436-444, 2011
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Publisher |
WILEY-BLACKWELL
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Date |
2012-06-26T03:40:59Z
2012-06-26T03:40:59Z 2011 |
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Type |
Article
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Identifier |
JOURNAL OF APPLIED POLYMER SCIENCE,121(1)436-444
0021-8995 http://dx.doi.org/10.1002/app.33684 http://dspace.library.iitb.ac.in/jspui/handle/100/13887 |
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Language |
English
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