A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer

Liao, Zisheng; Hossain, Mokarram; Yao, Xiaohu; Navaratne, Rukshan; Chagnon, Gregory

doi:10.1016/j.polymertesting.2020.106478

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A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer

Zisheng Liao, Mokarram Hossain

, Xiaohu Yao, Rukshan Navaratne, Gregory Chagnon

Polymer Testing, Volume: 86, Start page: 106478

Swansea University Author: Mokarram Hossain

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DOI (Published version): 10.1016/j.polymertesting.2020.106478

Abstract

Silicone polymers have enormous applications, especially in the areas of biomedical engineering. Ecoflex, a commercially available room temperature cured silicone polymer, has attracted considerable attention due to its wide range of applications as medical-grade silicones and as matrix materials in...

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Published in:	Polymer Testing
ISSN:	0142-9418 1873-2348
Published:	Elsevier BV 2020
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa53806

first_indexed	2020-03-10T19:40:29Z
last_indexed	2025-03-04T04:54:05Z
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spelling	2025-03-03T15:39:28.1104527 v2 53806 2020-03-10 A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer 140f4aa5c5ec18ec173c8542a7fddafd 0000-0002-4616-1104 Mokarram Hossain Mokarram Hossain true false 2020-03-10 ACEM Silicone polymers have enormous applications, especially in the areas of biomedical engineering. Ecoflex, a commercially available room temperature cured silicone polymer, has attracted considerable attention due to its wide range of applications as medical-grade silicones and as matrix materials in producing nano-filled stretchable sensors and dielectric elastomers for soft robotics. In this contribution, we have conducted a wide range of experiments under thermo-mechanical loadings. These experiments consist of loading-unloading cyclic tests, single-step relaxation tests, Mullins effects tests at different strain rates and stretches, stress recovery tests at different rest time, etc. In order to assess the temperature influences on Ecoflex, a number of viscoelastic tests are performed in a thermal chamber with temperature ranging from -40°C to 140°C. Extensive experimental findings illustrate that Ecoflex experiences a significant stress softening in the first cycles and such a softening recovers gradually with respect to time. It also shows a significant amount of cyclic dissipations at various stretch levels as well as a considerable stress relaxation only for virgin samples. Cyclic dissipations and stress relaxation almost disappear for the case of pre-stretched samples. Furthermore, the material is more or less sensitive under a wide range of temperature differences. Journal Article Polymer Testing 86 106478 Elsevier BV 0142-9418 1873-2348 Ecoflex silicone rubber; Mullins effect; Stress recovery; Strain rate dependence; Temperature dependence 1 6 2020 2020-06-01 10.1016/j.polymertesting.2020.106478 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University Not Required The first two authors would like to extend their sincere appreciation to Zienkiewicz Centre for Computational Engineering (ZCCE), Swansea University, UK for supporting the work. This support facilitates an exchange visit of the first author to ZCCE. This work is partially supported by the National Science Fund for Distinguished Young Scholars (No.11925203) and the National Natural Science Foundation of China (No.1672110). The work is also benefited from the Fundamental Research Funds for the Central Universities, SCUT (2018PY21). 2025-03-03T15:39:28.1104527 2020-03-10T16:52:34.2830410 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Zisheng Liao 1 Mokarram Hossain 0000-0002-4616-1104 2 Xiaohu Yao 3 Rukshan Navaratne 4 Gregory Chagnon 5 53806__16828__3810cb53a21f4074bf52ac917797dd9b.pdf liao2020(2).pdf 2020-03-10T16:55:53.2231520 Output 1616746 application/pdf Accepted Manuscript true 2021-03-10T00:00:00.0000000 Released under the terms of a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND). true eng
title	A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer
spellingShingle	A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer Mokarram Hossain
title_short	A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer
title_full	A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer
title_fullStr	A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer
title_full_unstemmed	A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer
title_sort	A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer
author_id_str_mv	140f4aa5c5ec18ec173c8542a7fddafd
author_id_fullname_str_mv	140f4aa5c5ec18ec173c8542a7fddafd_***_Mokarram Hossain
author	Mokarram Hossain
author2	Zisheng Liao Mokarram Hossain Xiaohu Yao Rukshan Navaratne Gregory Chagnon
format	Journal article
container_title	Polymer Testing
container_volume	86
container_start_page	106478
publishDate	2020
institution	Swansea University
issn	0142-9418 1873-2348
doi_str_mv	10.1016/j.polymertesting.2020.106478
publisher	Elsevier BV
college_str	Faculty of Science and Engineering
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department_str	School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
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description	Silicone polymers have enormous applications, especially in the areas of biomedical engineering. Ecoflex, a commercially available room temperature cured silicone polymer, has attracted considerable attention due to its wide range of applications as medical-grade silicones and as matrix materials in producing nano-filled stretchable sensors and dielectric elastomers for soft robotics. In this contribution, we have conducted a wide range of experiments under thermo-mechanical loadings. These experiments consist of loading-unloading cyclic tests, single-step relaxation tests, Mullins effects tests at different strain rates and stretches, stress recovery tests at different rest time, etc. In order to assess the temperature influences on Ecoflex, a number of viscoelastic tests are performed in a thermal chamber with temperature ranging from -40°C to 140°C. Extensive experimental findings illustrate that Ecoflex experiences a significant stress softening in the first cycles and such a softening recovers gradually with respect to time. It also shows a significant amount of cyclic dissipations at various stretch levels as well as a considerable stress relaxation only for virgin samples. Cyclic dissipations and stress relaxation almost disappear for the case of pre-stretched samples. Furthermore, the material is more or less sensitive under a wide range of temperature differences.
published_date	2020-06-01T04:42:35Z
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score	11.090464

A comprehensive thermo-viscoelastic experimental investigation of Ecoflex polymer

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