Fe3O4@rGO hybrids intercalated nanocellulose‐based aerogels for enhanced ferromagnetic and mechanical properties,Journal of Applied Polymer Science

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Fe3O4@rGO hybrids intercalated nanocellulose‐based aerogels for enhanced ferromagnetic and mechanical properties
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-10-08 , DOI: 10.1002/app.48564
Yunyun Yu ₁ , Yanlai Wang ₁ , Penghu Deng ₁ , Tonghua Zhang _{1,

2}

Affiliation

This work presented a new method for preparing cellulose nanofibril (CNF)/Fe₃O₄@rGO composite aerogels with enhanced magnetic and mechanical properties. The composite aerogels were obtained through compounding, gelling, washing, tert‐butanol replacing, and freeze‐drying. The structural characteristics of composite aerogels were investigated via scanning electron microscopy, Fourier transform infrared, and X‐ray diffraction. Results showed that the composite aerogels had interconnected three‐dimensional porous network microstructures, and the Fe₃O₄@rGO hybrids were uniformly dispersed in the aerogels. Moreover, the aerogels' magnetization and compression characteristics were also studied. Magnetic measurements indicated that composite aerogels had good magnetization characteristics with the saturation magnetization value of 6.75 emu/g. The uniaxial compression tests showed that the compression strength and Young's modulus of the composite aerogels were significantly improved by 32.33 and 118.56%, respectively, relative to those of CNF aerogels. The perfect combination of structure and performance may render the composite aerogels useful for commercial applications in the fields of environmental engineering, biomedical engineering, electronics, and energy. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48564.

中文翻译：

Fe3O4 @ rGO杂化材料插层的纳米纤维素气凝胶可增强铁磁和机械性能

这项工作提出了一种制备具有增强的磁性和机械性能的纤维素纳米原纤维（CNF）/ Fe ₃ O ₄ @rGO复合气凝胶的新方法。复合气凝胶是通过混合，胶凝，洗涤，叔丁醇置换和冷冻干燥获得的。通过扫描电子显微镜，傅立叶变换红外光谱和X射线衍射研究了复合气凝胶的结构特征。结果表明，复合气凝胶具有相互连接的三维多孔网络微观结构和Fe ₃ O _4。rGO杂种均匀地分散在气凝胶中。此外，还研究了气凝胶的磁化和压缩特性。磁性测量表明复合气凝胶具有良好的磁化特性，饱和磁化值为6.75 emu / g。单轴压缩试验表明，与CNF气凝胶相比，复合气凝胶的压缩强度和杨氏模量分别显着提高了32.33和118.56％。结构和性能的完美结合可以使复合气凝胶在环境工程，生物医学工程，电子学和能源领域的商业应用中有用。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2020，137，48564。

更新日期：2020-01-13

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