A Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles

This work investigates the mechanical properties, microstructures, and water-swelling behavior of a novel hydrogel filled with magnetic particles. The nanoparticles of magnetite (Fe<sub>3</sub>O<sub>4</sub>) and the micro-particles of carbonyl iron (CI) were selected and fill...

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Autores principales:	Chanchan Xu, Bin Li, Xiaojie Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	magnetic hydrogels magneto-rheology magnetite carbonyl iron water-swelling Biology (General) QH301-705.5 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/7cb01f2fad3b45b0935c8447bfd9c732
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spelling	oai:doaj.org-article:7cb01f2fad3b45b0935c8447bfd9c7322021-11-25T17:55:34ZA Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles10.3390/ijms2222123421422-00671661-6596https://doaj.org/article/7cb01f2fad3b45b0935c8447bfd9c7322021-11-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/22/12342https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067This work investigates the mechanical properties, microstructures, and water-swelling behavior of a novel hydrogel filled with magnetic particles. The nanoparticles of magnetite (Fe<sub>3</sub>O<sub>4</sub>) and the micro-particles of carbonyl iron (CI) were selected and filled into a polyacrylamide (PAAM) hydrogel matrix to create two types of magnetic hydrogels. The isotropy and anisotropy of magnetic hydrogels are also presented in this study. The isotropic samples were cured without applying a magnetic field (MF), and the anisotropic samples were cured by applying an MF in the direction perpendicular to the thickness of the samples. The effects of the size, content, and inner structures of magnetic particles on the magneto-responsive and swelling properties of magnetic hydrogels were investigated. It was found that the magnetorheological (MR) effect of anisotropic samples was apparently higher than that of isotropic samples, and the hydrogels with CI exhibited a noticeable MR effect than those with Fe<sub>3</sub>O<sub>4</sub>. The storage modulus can be enhanced by increasing the filler content and size, forming an anisotropic structure, and applying an external MF. In addition, the magnetic hydrogels also have a swelling ability that can be tuned by varying the content and size of the particle fillers.Chanchan XuBin LiXiaojie WangMDPI AGarticlemagnetic hydrogelsmagneto-rheologymagnetitecarbonyl ironwater-swellingBiology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 12342, p 12342 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnetic hydrogels magneto-rheology magnetite carbonyl iron water-swelling Biology (General) QH301-705.5 Chemistry QD1-999
spellingShingle	magnetic hydrogels magneto-rheology magnetite carbonyl iron water-swelling Biology (General) QH301-705.5 Chemistry QD1-999 Chanchan Xu Bin Li Xiaojie Wang A Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles
description	This work investigates the mechanical properties, microstructures, and water-swelling behavior of a novel hydrogel filled with magnetic particles. The nanoparticles of magnetite (Fe<sub>3</sub>O<sub>4</sub>) and the micro-particles of carbonyl iron (CI) were selected and filled into a polyacrylamide (PAAM) hydrogel matrix to create two types of magnetic hydrogels. The isotropy and anisotropy of magnetic hydrogels are also presented in this study. The isotropic samples were cured without applying a magnetic field (MF), and the anisotropic samples were cured by applying an MF in the direction perpendicular to the thickness of the samples. The effects of the size, content, and inner structures of magnetic particles on the magneto-responsive and swelling properties of magnetic hydrogels were investigated. It was found that the magnetorheological (MR) effect of anisotropic samples was apparently higher than that of isotropic samples, and the hydrogels with CI exhibited a noticeable MR effect than those with Fe<sub>3</sub>O<sub>4</sub>. The storage modulus can be enhanced by increasing the filler content and size, forming an anisotropic structure, and applying an external MF. In addition, the magnetic hydrogels also have a swelling ability that can be tuned by varying the content and size of the particle fillers.
format	article
author	Chanchan Xu Bin Li Xiaojie Wang
author_facet	Chanchan Xu Bin Li Xiaojie Wang
author_sort	Chanchan Xu
title	A Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles
title_short	A Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles
title_full	A Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles
title_fullStr	A Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles
title_full_unstemmed	A Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles
title_sort	comparison study on the magneto-responsive properties and swelling behaviors of a polyacrylamide-based hydrogel incorporating with magnetic particles
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7cb01f2fad3b45b0935c8447bfd9c732
work_keys_str_mv	AT chanchanxu acomparisonstudyonthemagnetoresponsivepropertiesandswellingbehaviorsofapolyacrylamidebasedhydrogelincorporatingwithmagneticparticles AT binli acomparisonstudyonthemagnetoresponsivepropertiesandswellingbehaviorsofapolyacrylamidebasedhydrogelincorporatingwithmagneticparticles AT xiaojiewang acomparisonstudyonthemagnetoresponsivepropertiesandswellingbehaviorsofapolyacrylamidebasedhydrogelincorporatingwithmagneticparticles AT chanchanxu comparisonstudyonthemagnetoresponsivepropertiesandswellingbehaviorsofapolyacrylamidebasedhydrogelincorporatingwithmagneticparticles AT binli comparisonstudyonthemagnetoresponsivepropertiesandswellingbehaviorsofapolyacrylamidebasedhydrogelincorporatingwithmagneticparticles AT xiaojiewang comparisonstudyonthemagnetoresponsivepropertiesandswellingbehaviorsofapolyacrylamidebasedhydrogelincorporatingwithmagneticparticles
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A Comparison Study on the Magneto-Responsive Properties and Swelling Behaviors of a Polyacrylamide-Based Hydrogel Incorporating with Magnetic Particles

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