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皮克林乳液聚合聚苯胺/锌铁氧体复合粒子及其双电流变和磁流变响应

Pickering Emulsion Polymerized Polyaniline/Zinc-ferrite Composite Particles and Their Dual Electrorheological and Magnetorheological Responses.

作者信息

Kim Joo Nyeon, Dong Yu Zhen, Choi Hyoung Jin

机构信息

Department of Polymer Science and Engineering, Inha University, Incheon 22212, Korea.

出版信息

ACS Omega. 2020 Mar 26;5(13):7675-7682. doi: 10.1021/acsomega.0c00585. eCollection 2020 Apr 7.

DOI:10.1021/acsomega.0c00585
PMID:32280911
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7144134/
Abstract

A functional raspberry-like core-shell composite particle consisting of a conducting polyaniline (PANI) core and magnetic zinc ferrite shell is synthesized by Pickering emulsion polymerization. The morphology and chemical structure of the PANI/zinc-ferrite composite are evaluated by scanning electron microscopy, transmission electron microscopy, and Fourier-transform infrared spectroscopy. An electrorheological/magnetorheological fluid consisting of the PANI/zinc-ferrite composite dispersed in silicone oil with a particle concentration of 5 vol % is fabricated. Its rheological characteristics under external electric and magnetic fields are investigated by using a rotational rheometer. Under the electric or magnetic field, the PANI/zinc-ferrite particles form chain-like structures, demonstrating a solid-like state.

摘要

通过皮克林乳液聚合合成了一种功能性的树莓状核壳复合粒子，其由导电聚苯胺（PANI）核和磁性铁酸锌壳组成。通过扫描电子显微镜、透射电子显微镜和傅里叶变换红外光谱对聚苯胺/铁氧体锌复合材料的形态和化学结构进行了评估。制备了一种由聚苯胺/铁氧体锌复合材料分散在硅油中且颗粒浓度为5体积%的电流变/磁流变流体。使用旋转流变仪研究了其在外部电场和磁场下的流变特性。在电场或磁场作用下，聚苯胺/铁氧体锌颗粒形成链状结构，呈现出类固态。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d8af/7144134/9af40110deb6/ao0c00585_0012.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d8af/7144134/ec52c2ca3614/ao0c00585_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d8af/7144134/f52aa44b2ae6/ao0c00585_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d8af/7144134/d03aa8a0c4c6/ao0c00585_0007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d8af/7144134/9af40110deb6/ao0c00585_0012.jpg

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