Magnetite-polypyrrole core-shell structured microspheres and their dual stimuli-response under electric and magnetic fields

被引：84

作者：

Park, Dae Eun ^{[1
]}

Chae, Hyun Sik ^{[1
]}

Choi, Hyoung Jin ^{[1
]}

Maity, Arjun ^{[2
,3
,4
]}

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea

[2] CSIR, DST CSIR Innovat Ctr, Natl Ctr Nanostruct Mat Mat Sci & Mfg, ZA-0001 Pretoria, South Africa

[3] Univ South Africa UNISA, Dept Civil & Chem Engn, Pretoria, South Africa

[4] Univ Johannesburg, Dept Appl Chem, ZA-2028 Johannesburg, South Africa

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2015年 / 3卷 / 13期

关键词：

CARBONYL IRON PARTICLES; HIGH ELECTRORHEOLOGICAL ACTIVITY; MAGNETORHEOLOGICAL CHARACTERISTICS; COMPOSITE MICROSPHERES; SILICA PARTICLES; BARIUM-TITANATE; SUSPENSIONS; POLYANILINE; BEHAVIOR; FLUID;

D O I：

10.1039/c5tc00007f

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polypyrrole (PPy)-coated magnetite (Fe3O4) hybrid particles were synthesized under sonication. PPy was coated on the surface of Fe3O4 microspheres, whereas pyrrole monomers filled the interior of the Fe3O4 particles and were then polymerized. The s(t) ructure of the Fe3O4-PPy microspheres was confirmed by transmission electron microscopy. The electric and magnetic properties were confirmed by optical microscopy and vibrating sample magnetometry, respectively. The suspension of the Fe3O4-PPy composite microspheres dispersed in silicone oil exhibited both electrorheological and magnetorheological properties when measured using a rotational rheometer under an applied electric and magnetic field, respectively.

引用

页码：3150 / 3158

页数：9

共 64 条

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