Variation in the viscoelastic properties of polydimethylsiloxane (PDMS) with the temperature at ultrasonic frequencies
Polydimethylsiloxane (PDMS) is an organic silicone with a viscoelastic behavior suitable for use in engineering. This material presents substantial changes in its properties depending on the temperature and the flow rate: at high temperatures or high flow rates, it behaves as a viscous liquid; where...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Polymer Testing |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941823001472 |
| _version_ | 1797802248103788544 |
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| author | V. Genovés L. Maini C. Roman C. Hierold N. Cesarovic |
| author_facet | V. Genovés L. Maini C. Roman C. Hierold N. Cesarovic |
| author_sort | V. Genovés |
| collection | DOAJ |
| description | Polydimethylsiloxane (PDMS) is an organic silicone with a viscoelastic behavior suitable for use in engineering. This material presents substantial changes in its properties depending on the temperature and the flow rate: at high temperatures or high flow rates, it behaves as a viscous liquid; whereas, at low temperatures or low flow rates, it behaves as an elastic solid. The lack of accurate information about the modifications in PDMS under thermal changes affects the design of transducers (both sensors and actuators) based on this material and also their calibration. In this study, 10:1 base-agent mixing ratio was analyzed in a 20 °C to 50 °C temperature range to assess the ultrasonic P-wave properties (velocity, attenuation, and variation of both with the frequency) and hence complex elastic modulii of this material under a temperature dependent environment. P-wave velocity and attenuation were extracted for every temperature step in a 3–7 MHz frequency range which is the typical range for medical applications. Acoustic dispersion of PDMS properties such as velocity and attenuation in a pulse-echo set up were analyzed to also compute attenuation coefficient, temperature and frequency dependent models and complex modulus. |
| first_indexed | 2024-03-13T05:03:04Z |
| format | Article |
| id | doaj.art-89c1356d5ee845da820a917817483bdc |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-03-13T05:03:04Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-89c1356d5ee845da820a917817483bdc2023-06-17T05:17:32ZengElsevierPolymer Testing0142-94182023-07-01124108067Variation in the viscoelastic properties of polydimethylsiloxane (PDMS) with the temperature at ultrasonic frequenciesV. Genovés0L. Maini1C. Roman2C. Hierold3N. Cesarovic4Translational and Cardiovascular Technology, Department of Health Sciences and Technology, ETH Zurich, 8092, Zurich, Switzerland; Corresponding author.Micro and Nanosystems, Department of Mechanical and Process Engineering, ETH Zurich, 8092, Zurich, SwitzerlandMicro and Nanosystems, Department of Mechanical and Process Engineering, ETH Zurich, 8092, Zurich, SwitzerlandMicro and Nanosystems, Department of Mechanical and Process Engineering, ETH Zurich, 8092, Zurich, SwitzerlandTranslational and Cardiovascular Technology, Department of Health Sciences and Technology, ETH Zurich, 8092, Zurich, SwitzerlandPolydimethylsiloxane (PDMS) is an organic silicone with a viscoelastic behavior suitable for use in engineering. This material presents substantial changes in its properties depending on the temperature and the flow rate: at high temperatures or high flow rates, it behaves as a viscous liquid; whereas, at low temperatures or low flow rates, it behaves as an elastic solid. The lack of accurate information about the modifications in PDMS under thermal changes affects the design of transducers (both sensors and actuators) based on this material and also their calibration. In this study, 10:1 base-agent mixing ratio was analyzed in a 20 °C to 50 °C temperature range to assess the ultrasonic P-wave properties (velocity, attenuation, and variation of both with the frequency) and hence complex elastic modulii of this material under a temperature dependent environment. P-wave velocity and attenuation were extracted for every temperature step in a 3–7 MHz frequency range which is the typical range for medical applications. Acoustic dispersion of PDMS properties such as velocity and attenuation in a pulse-echo set up were analyzed to also compute attenuation coefficient, temperature and frequency dependent models and complex modulus.http://www.sciencedirect.com/science/article/pii/S0142941823001472 |
| spellingShingle | V. Genovés L. Maini C. Roman C. Hierold N. Cesarovic Variation in the viscoelastic properties of polydimethylsiloxane (PDMS) with the temperature at ultrasonic frequencies Polymer Testing |
| title | Variation in the viscoelastic properties of polydimethylsiloxane (PDMS) with the temperature at ultrasonic frequencies |
| title_full | Variation in the viscoelastic properties of polydimethylsiloxane (PDMS) with the temperature at ultrasonic frequencies |
| title_fullStr | Variation in the viscoelastic properties of polydimethylsiloxane (PDMS) with the temperature at ultrasonic frequencies |
| title_full_unstemmed | Variation in the viscoelastic properties of polydimethylsiloxane (PDMS) with the temperature at ultrasonic frequencies |
| title_short | Variation in the viscoelastic properties of polydimethylsiloxane (PDMS) with the temperature at ultrasonic frequencies |
| title_sort | variation in the viscoelastic properties of polydimethylsiloxane pdms with the temperature at ultrasonic frequencies |
| url | http://www.sciencedirect.com/science/article/pii/S0142941823001472 |
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