The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications
Abstract Dielectric elastomer (DE) pre-stretching is a key aspect of attaining better actuation performance, as it helps prevent electromechanical instability (EMI) and usually lowers the Young's modulus, thus leading to easier deformation. The pre-stretched {DE} is not only susceptible to a hi...
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| Format: | Article |
| Language: | English |
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Elsevier
2015
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| Online Access: | http://umpir.ump.edu.my/id/eprint/12476/1/The%20Influence%20Of%20Static%20Pre-Stretching%20On%20The%20Mechanical%20Ageing%20Of%20Filled%20Silicone%20Rubbers%20For%20Dielectric%20Elastomer%20Applications.pdf |
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| author | Shamsul, Zakaria Yu, Liyun Kofod, Guggi Skov, Anne Ladegaard |
| author_facet | Shamsul, Zakaria Yu, Liyun Kofod, Guggi Skov, Anne Ladegaard |
| author_sort | Shamsul, Zakaria |
| collection | UMP |
| description | Abstract Dielectric elastomer (DE) pre-stretching is a key aspect of attaining better actuation performance, as it helps prevent electromechanical instability (EMI) and usually lowers the Young's modulus, thus leading to easier deformation. The pre-stretched {DE} is not only susceptible to a high risk of tearing and the formation of mechanical defects, but films with sustained and substantial strain may also experience mechanical degradation. In this study a long-term mechanical reliability study of {DE} is performed. Young's moduli, dielectric breakdown strengths and dielectric permittivities of commercial silica-reinforced silicone elastomers, with and without an additional 35 (35 phr) of titanium dioxide (TiO2), were investigated after being subjected to pre-stretching for various timespans at pre-stretches to strains of 60 and 120, respectively. The study shows that mechanical stability when pre-stretching is difficult to achieve with highly filled elastomers. However, despite the negative outlook for metal oxide-filled silicone elastomers, the study paves the way for reliable dielectric elastomers by indicating that simply post-curing silicone elastomers before use may increase reliability. |
| first_indexed | 2024-03-06T12:02:12Z |
| format | Article |
| id | UMPir12476 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:02:12Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | UMPir124762018-07-25T08:18:18Z http://umpir.ump.edu.my/id/eprint/12476/ The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications Shamsul, Zakaria Yu, Liyun Kofod, Guggi Skov, Anne Ladegaard QD Chemistry Abstract Dielectric elastomer (DE) pre-stretching is a key aspect of attaining better actuation performance, as it helps prevent electromechanical instability (EMI) and usually lowers the Young's modulus, thus leading to easier deformation. The pre-stretched {DE} is not only susceptible to a high risk of tearing and the formation of mechanical defects, but films with sustained and substantial strain may also experience mechanical degradation. In this study a long-term mechanical reliability study of {DE} is performed. Young's moduli, dielectric breakdown strengths and dielectric permittivities of commercial silica-reinforced silicone elastomers, with and without an additional 35 (35 phr) of titanium dioxide (TiO2), were investigated after being subjected to pre-stretching for various timespans at pre-stretches to strains of 60 and 120, respectively. The study shows that mechanical stability when pre-stretching is difficult to achieve with highly filled elastomers. However, despite the negative outlook for metal oxide-filled silicone elastomers, the study paves the way for reliable dielectric elastomers by indicating that simply post-curing silicone elastomers before use may increase reliability. Elsevier 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12476/1/The%20Influence%20Of%20Static%20Pre-Stretching%20On%20The%20Mechanical%20Ageing%20Of%20Filled%20Silicone%20Rubbers%20For%20Dielectric%20Elastomer%20Applications.pdf Shamsul, Zakaria and Yu, Liyun and Kofod, Guggi and Skov, Anne Ladegaard (2015) The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications. Materials Today Communications, 4 (Sept.). 204 - 213. ISSN 2352-4928. (Published) http://dx.doi.org/10.1016/j.mtcomm.2015.08.002 DOI: 10.1016/j.mtcomm.2015.08.002 |
| spellingShingle | QD Chemistry Shamsul, Zakaria Yu, Liyun Kofod, Guggi Skov, Anne Ladegaard The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications |
| title | The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications |
| title_full | The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications |
| title_fullStr | The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications |
| title_full_unstemmed | The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications |
| title_short | The Influence of Static Pre-stretching on the Mechanical Ageing of Filled Silicone Rubbers for Dielectric Elastomer Applications |
| title_sort | influence of static pre stretching on the mechanical ageing of filled silicone rubbers for dielectric elastomer applications |
| topic | QD Chemistry |
| url | http://umpir.ump.edu.my/id/eprint/12476/1/The%20Influence%20Of%20Static%20Pre-Stretching%20On%20The%20Mechanical%20Ageing%20Of%20Filled%20Silicone%20Rubbers%20For%20Dielectric%20Elastomer%20Applications.pdf |
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