Sequential Coating of Magnetic Carbonyliron Particles with Polystyrene and Multiwalled Carbon Nanotubes and Its Effect on Their Magnetorheology

被引：115
作者：
Fang, Fei Fei [1 ]
Choi, Hyoung Jin [1 ]
Seo, Yongsok [2 ]
机构：
[1] Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea
[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151744, South Korea
来源：
ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 01期
关键词：
magnetorheological fluid; carbonyliron; polystyrene; multiwalled carbon nanotube; coating; YIELD-STRESS; ELECTRORHEOLOGICAL FLUID; IRON PARTICLES; BEHAVIOR; STABILIZATION; SUSPENSIONS; COMPOSITES; STABILITY; EMULSION;
D O I：
10.1021/am900577w
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A two-step process for the sequential coating of magnetic carbonyliron (CI) particles with polystyrene (PS) and multiwalled carbon nanotubes (MWCNTs) was used to improve the sedimentation stability of micrometer-sized magnetic C1 particles for magneto rheological (MR) applications under an applied magnetic-field. The Cl particles were initially coated with nanosized PS beads using an in situ dispersion polymerization method and then wrapped With a dense MWCNT nest through a solvent-casting method in a water/oil emulsion system, The morphology, MR performance, and sedimentation stability of the synthesized magnetic composite particles were examined. The composite particles showed enhanced MR characteristics and dispersion stability.
引用
收藏
页码：54 / 60
页数：7
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