Magnetic elastomer composites with tunable magnetization behaviors for flexible magnetic transducers

IF 4.8 2区 材料科学 Q2 MATERIALS SCIENCE, COMPOSITES Polymer Composites Pub Date : 2024-09-18 DOI:10.1002/pc.29042
Yue Wang, Zihan Wang, Xiayu Liu, Luodan Zhang, Qingxin Li, Duaa Abdallaha, Xiaoli Song, Lifeng Zhang, Hui Sun, Junliang Liu
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Abstract

Magnetic elastomer composites are extending the field of soft robotics by integrating the flexibility of elastomers with the versatile performance of magnetic materials. In this work, a series of magnetic elastomers (BaCoxTixFe12–2xO19/PDMS) with tunable magnetic response have been successfully synthesized. In this composite, the magnetic component consists of Co-Ti co-doped barium hexaferrite (BaCoxTixFe12–2xO19, BCTF) nano powders, and the matrix is made of polydimethylsiloxane (PDMS). The coercivity (Hc) of BCTF can be reduced from 3950 Oe to 70 Oe, which bestow on the magnetic elastomer different magnetic response behavior. These magnetic elastomer composites obtained by blending have low Young's modulus, approximately 1.5 MPa. Furthermore, when applying the same external magnetic field, BaCo1.2Ti1.2Fe9.6O19/PDMS the magnetic deformation Angle can be as high as 60°. These magnetic elastomers exhibit different magnetic-induced deformation owing to the adjustable permeability of the magnetic nanoparticles. This research significantly advances the design of applications with specific magnetic characteristics, such as sensors and transducers, thus opening new horizons for innovation in soft robotics and related fields.

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用于柔性磁传感器的具有可调磁化特性的磁弹性体复合材料
磁性弹性体复合材料将弹性体的柔韧性与磁性材料的多功能性融为一体,拓展了软机器人领域。本研究成功合成了一系列具有可调磁响应的磁性弹性体(BaCoxTixFe12-2xO19/PDMS)。在这种复合材料中,磁性成分由钴钛共掺杂六价钡铁氧体(BaCoxTixFe12-2xO19,BCTF)纳米粉末组成,基体由聚二甲基硅氧烷(PDMS)制成。BCTF 的矫顽力(Hc)可从 3950 Oe 降至 70 Oe,从而赋予磁性弹性体不同的磁响应行为。通过混合获得的这些磁性弹性体复合材料的杨氏模量较低,约为 1.5 兆帕。此外,当施加相同的外部磁场时,BaCo1.2Ti1.2Fe9.6O19/PDMS 的磁变形角可高达 60°。由于磁性纳米粒子的磁导率可调,这些磁性弹性体表现出不同的磁致形变。这项研究极大地推动了传感器和换能器等具有特定磁特性的应用的设计,从而为软机器人和相关领域的创新开辟了新天地。
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来源期刊
Polymer Composites
Polymer Composites 工程技术-材料科学:复合
CiteScore
7.50
自引率
32.70%
发文量
673
审稿时长
3.1 months
期刊介绍: Polymer Composites is the engineering and scientific journal serving the fields of reinforced plastics and polymer composites including research, production, processing, and applications. PC brings you the details of developments in this rapidly expanding area of technology long before they are commercial realities.
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