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Surface modified iron oxide (Fe3O4) nanosheets reinforced PVDF nanocomposites: influence on morphology, thermal and magnetic properties
Plastics, Rubber and Composites ( IF 2.1 ) Pub Date : 2021-08-12 , DOI: 10.1080/14658011.2021.1966248
N. V. Lakshmi 1 , Pankaj Tambe 2 , Biswajit Panda 3
Affiliation  

ABSTRACT

In this work, iron oxide (Fe3O4) nanosheets are synthesised using the solvothermal method. Transmission electron microscope (TEM) observation confirms the nanosheets-like morphology of Fe3O4. While X-ray diffraction (XRD) studies of Fe3O4 nanosheets reveal the Fe3O4 nanosheets synthesised are crystalline in nature. Vibration sample magnetometry studies of Fe3O4 nanosheets have shown superparamagnetic behaviour with saturation magnetisation (Ms) value of 29.6 emu/g. The synthesised Fe3O4 nanosheets are dispersed in poly(vinylidene fluoride) PVDF matrix using the solution casting method with slow evaporation of solvent at 60 °C which facilitates the formation of β-form of PVDF crystals. The PVP modified Fe3O4 nanosheets incorporation in the PVDF matrix influences the thermal stability and crystalline behaviour. Scanning electron microscope observation shows the improved dispersion of Fe3O4 nanosheets in the PVDF matrix by modifying Fe3O4 nanosheets with PVP. The Ms value is increased by ∼122% for PVP modified Fe3O4 nanosheets reinforced PVDF nanocomposites as compared to Fe3O4 nanosheets reinforced PVDF nanocomposites.



中文翻译:

表面改性氧化铁 (Fe3O4) 纳米片增强 PVDF 纳米复合材料:对形态、热和磁性能的影响

摘要

在这项工作中,氧化铁(Fe 3 O 4)纳米片是使用溶剂热法合成的。透射电子显微镜 (TEM) 观察证实了 Fe 3 O 4的纳米片状形态。而对 Fe 3 O 4纳米片的X 射线衍射 (XRD) 研究表明,合成的 Fe 3 O 4纳米片本质上是结晶的。Fe 3 O 4纳米片的振动样品磁力测量研究显示了超顺磁性行为,饱和磁化强度 ( M s ) 值为 29.6 emu/g。合成的 Fe 3 O 4使用溶液浇铸法将纳米片分散在聚(偏二氟乙烯)PVDF基体中,在60°C下缓慢蒸发溶剂,这有助于形成β-型PVDF晶体。掺入 PVDF 基体中的 PVP 改性 Fe 3 O 4纳米片会影响热稳定性和结晶行为。扫描电子显微镜观察表明,通过用 PVP改性 Fe 3 O 4纳米片,改善了 Fe 3 O 4纳米片在 PVDF 基体中的分散性。与 Fe 相比,PVP 改性的 Fe 3 O 4纳米片增强的 PVDF 纳米复合材料的M s值增加了 ∼122%3 O 4纳米片增强PVDF纳米复合材料。

更新日期:2021-08-12
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