Yu, Liyun and Vudayagiri, Sindhu and Shamsul, Zakaria and Benslimane, Mohamed Yahia and Skov, Anne Ladegaard (2014) Filled liquid silicone rubbers: possibilities and challenges. In: Proceedings of SPIE - The International Society for Optical Engineering , 10-13 March 2014 , San Diego. pp. 1-9., 9056. ISSN 0277786X ISBN 978-081949982-0
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Abstract
Liquid silicone rubbers (LSRs) have been shown to possess very favorable properties as dielectric electroactive polymers due to their very high breakdown strengths (up to 170 V/μm) combined with their fast response, relatively high tear strength, acceptable Young’s modulus as well as they can be filled with permittivity enhancing fillers. However, LSRs possess large viscosity, especially when additional fillers are added. Therefore both mixing and coating of the required thin films become difficult. The solution so far has been to use solvent to dilute the reaction mixture in order both to ensure better particle dispersion as well as allowing for film formation properties. We show that the mechanical properties of the films as well as the electrical breakdown strength can be affected, and that the control of the amount of solvent throughout the coating process is essential for solvent borne processes. Another problem encountered when adding solvent to the highly filled reaction mixture is the loss of tension in the material upon large deformations. These losses are shown to be irreversible and happen within the first large-strain cycle.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Elastomers; Silicones; Composites; Electroactive; Strain displacement |
| Subjects: | Q Science > QD Chemistry |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Mr. Shamsul Zakaria |
| Date Deposited: | 11 Jan 2017 06:21 |
| Last Modified: | 26 Jun 2021 07:59 |
| URI: | http://umpir.ump.edu.my/id/eprint/14410 |
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