Title | Harnessing osmotic swelling stress for robust hydrogel actuators |
Author | |
Corresponding Author | Yang, Canhui |
Publication Years | 2022-06-01
|
DOI | |
Source Title | |
ISSN | 1744-683X
|
EISSN | 1744-6848
|
Volume | 18Pages:5177-5184 |
Abstract | The volumetric expansion of hydrogels driven by osmotic swelling stress has enabled hydrogel actuators for myriad applications. However, most existing studies disregard optimizing the osmotic swelling stress for powerful actuation and simply utilize the osmotic swelling stress to trigger certain modes of actuation. In this work, we probe the osmotic swelling stress of hydrogels using polyacrylamide as a model system. We design and perform constrained swelling experiments to measure the osmotic swelling stresses at different levels of constraint and compare the results to the theoretical predictions based on the Flory-Huggins model. We optimize the osmotic swelling properties by tuning the constituents and structures of the hydrogel and achieve an enhancement of the magnitude of actuation stress from similar to 180 kPa to similar to 400 kPa. As a proof of concept, we demonstrate a robust hydrogel jack that can lift a weight 2000 times its own weight by harnessing the high osmotic swelling stress. The feasibility and limits of harnessing the osmotic swelling stress of hydrogels for actuation are discussed. |
URL | [Source Record] |
Indexed By | |
Language | English
|
SUSTech Authorship | First
; Corresponding
|
Funding Project | Natural Science Foundation of Guangdong Province[2214050008118]
; Stable Support Plan Program of Shenzhen Natural Science Fund[K21326303]
; Science, Technology and Innovation Commission of Shenzhen Municipality[ZDSYS20210623092005017]
|
WOS Research Area | Chemistry
; Materials Science
; Physics
; Polymer Science
|
WOS Subject | Chemistry, Physical
; Materials Science, Multidisciplinary
; Physics, Multidisciplinary
; Polymer Science
|
WOS Accession No | WOS:000822866800001
|
Publisher | |
EI Accession Number | 20223012412027
|
EI Keywords | Actuators
; Osmosis
; Swelling
|
ESI Classification Code | Control Equipment:732.1
; Colloid Chemistry:801.3
; Chemical Operations:802.3
; Chemical Products Generally:804
; Materials Science:951
|
Data Source | Web of Science
|
Citation statistics |
Cited Times [WOS]:2
|
Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/355843 |
Department | Department of Mechanics and Aerospace Engineering |
Affiliation | 1.Southern Univ Sci & Technol, Shenzhen Key Lab Soft Mech & Smart Mfg, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China 2.Southern Univ Sci & Technol, Soft Mech Lab, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China |
First Author Affilication | Department of Mechanics and Aerospace Engineering |
Corresponding Author Affilication | Department of Mechanics and Aerospace Engineering |
First Author's First Affilication | Department of Mechanics and Aerospace Engineering |
Recommended Citation GB/T 7714 |
He, Xitao,Zhu, Jie,Yang, Canhui. Harnessing osmotic swelling stress for robust hydrogel actuators[J]. Soft Matter,2022,18:5177-5184.
|
APA |
He, Xitao,Zhu, Jie,&Yang, Canhui.(2022).Harnessing osmotic swelling stress for robust hydrogel actuators.Soft Matter,18,5177-5184.
|
MLA |
He, Xitao,et al."Harnessing osmotic swelling stress for robust hydrogel actuators".Soft Matter 18(2022):5177-5184.
|
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