由 CoFeO 颗粒分散在纤维素纳米纤维中形成的负磁致伸缩纸。
Negative magnetostrictive paper formed by dispersing CoFeO particles in cellulose nanofibrils.
机构信息
Department of Frontier Sciences for Advanced Environment, Graduate School of Environmental Studies, Tohoku University, Sendai, Japan.
Ångström Laboratory, Disciplinary Domain of Science and Technology, Department of Chemistry, Uppsala University, Uppsala, Sweden.
出版信息
Sci Rep. 2023 Apr 15;13(1):6144. doi: 10.1038/s41598-023-31655-z.
Polymers are often combined with magnetostrictive materials to enhance their toughness. This study reports a cellulose nanofibril (CNF)-based composite paper containing dispersed CoFeO particles (CNF-CoFeO). Besides imparting magnetization and magnetostriction, the incorporation of CoFeO particles decreased the ultimate tensile strength and increased the fracture elongation of the CNF-CoFeO composite paper. CNF was responsible for the tensile properties of CNF-CoFeO composite paper. Consequently, the magnetic and magnetostrictive properties and tensile properties of CNF-CoFeO composite paper can be controlled by changing the mixture ratio of CNF and CoFeO particles.
聚合物通常与磁致伸缩材料结合使用以提高其韧性。本研究报道了一种含有分散的 CoFeO 颗粒的基于纤维素纳米纤维（CNF）的复合纸（CNF-CoFeO）。除了赋予磁性和磁致伸缩性之外，CoFeO 颗粒的掺入还降低了 CNF-CoFeO 复合纸的极限拉伸强度并增加了其断裂伸长率。CNF 负责 CNF-CoFeO 复合纸的拉伸性能。因此，通过改变 CNF 和 CoFeO 颗粒的混合比，可以控制 CNF-CoFeO 复合纸的磁性、磁致伸缩性和拉伸性能。
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