Dynamic mechanical properties of Al2O3/poly(ether ether ketone) composites |
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| Authors: | R K Goyal A N Tiwari U P Mulik Y S Negi |
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| Affiliation: | 1. Centre for Materials for Electronics Technology, Department of Information Technology, Government of India, Panchwati, Off Pashan Road, Pune 411 008, MS, India;2. Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology, Bombay, Powai, Mumbai 400 076, MS, India;3. Polymer Science and Technology Laboratory, Department of Paper Technology, Indian Institute of Technology, Roorkee, Saharanpur Campus, Saharanpur 247 001, UP, India |
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| Abstract: | The dynamic mechanical properties of high‐performance polymer matrix composites based on semicrystalline poly(ether ether ketone) (PEEK) and aluminum oxide (Al2O3) were evaluated in the temperature range of 30–250°C with a three‐point‐bending mode at a frequency of 1 Hz. The storage modulus and loss modulus changed significantly with the variation of the Al2O3 content in the PEEK matrix. The Al2O3 reinforcement was more pronounced above the glass‐transition temperature (Tg). A composite containing 60 wt % (33 vol %) Al2O3 exhibited about a 78% increase in the storage modulus at 50°C and about a 200% increase at 200°C. However, there was no significant change in the mechanical loss factor and Tg associated with the peak of the mechanical loss factor or loss modulus with the addition of Al2O3. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 568–575, 2007 |
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| Keywords: | composites electron microscopy high performance polymers reinforcement viscoelastic properties |
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