Conductive and Electroactive Polymers Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand.
Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakorn Pathom 73000, Thailand.
Carbohydr Polym. 2023 Jun 15;310:120741. doi: 10.1016/j.carbpol.2023.120741. Epub 2023 Feb 23.
Magnetic ionogels are a new kind of gel composites which combine the elastic properties from the swollen gel matrix and the magnetic properties from a magnetic filler. The dual electro-magneto-responsive agarose ionogels (AG IGels) were fabricated by a solution casting method using 1-butyl-3-methylimidazolium chloride [Bmim][Cl] as the ionic liquid solvent, and embedded with magnetite nanoparticles (FeO NPs). The addition of FeO NPs induced the high bending responses under applied electric and magnetic fields via the electronic polarization and magnetic interaction. The 3.0 wt.% FeO/AG MagIGel showed the largest deflection distances relative to other magnetic gel composites; 14.92, 8.96, and 21.63 mm under the applied electric fields of 600 V/mm in silicone oil, 60 V/mm in air, and under the applied magnetic field of 600 G in air, respectively. The bending distances were of comparable in magnitudes to other electro-magneto-responsive materials. Thus, the fabricated FeO/AG MagIGels are demonstrated here as potential for soft electric-magnetic actuator applications.
磁性离子凝胶是一种新型的凝胶复合材料，它结合了溶胀凝胶基质的弹性和磁性填充剂的磁性。通过溶液浇铸法制备了双电-磁响应琼脂糖离子凝胶（AG IGels），以 1-丁基-3-甲基咪唑氯 [Bmim][Cl] 为离子液体溶剂，并嵌入了磁铁矿纳米粒子（FeO NPs）。通过电子极化和磁相互作用，FeO NPs 的添加诱导了在施加电场和磁场下的高弯曲响应。与其他磁性凝胶复合材料相比，3.0wt.% FeO/AG MagIGel 在硅油中施加 600V/mm 的电场、空气中施加 60V/mm 的电场和空气中施加 600G 的磁场下，表现出最大的偏转距离，分别为 14.92、8.96 和 21.63mm。弯曲距离与其他电-磁响应材料相当。因此，所制备的 FeO/AG MagIGels 有望作为软电磁致动器的应用。
