Preparation of polymer-based composite with magnetic anisotropy by oriented carbon nanotube dispersion

被引：16

作者：

Chiolerio, A. ^{[1
]}

Musso, S. ^{[1
]}

Sangermano, M. ^{[2
]}

Giorcelli, M. ^{[1
]}

Bianco, S. ^{[1
]}

Coisson, M. ^{[3
]}

Priola, A. ^{[2
]}

Allia, P. ^{[1
]}

Taghaferro, A. ^{[1
]}

机构：

[1] Politecn Torino, Dept Phys, I-10129 Turin, Italy

[2] Politecn Torino, Dept Mat Sci & Chem Engn, I-10129 Turin, Italy

[3] Ist Nazl Ric Metrol, I-10135 Turin, Italy

来源：

关键词：

chemical vapor deposition; polymeric matrix composites; carbon nanotubes; magnetic properties;

D O I：

10.1016/j.diamond.2008.01.117

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

A polymer-based nanocomposite film with partially oriented multi wall carbon nanotubes (MWCNTs) was synthesized by a facile technique. A small amount of MWCNTs (average diameter 50 nm, length 500 pin) containing ferromagnetic iron particles, mainly localized in the tips, were dispersed ultrasonically for over 30 It in a diacrylate resin (bisphenol-A-diglycydylether diacrylate, BHEDA). The liquid resin was cast between two UV transparent substrates and subjected to a unidirectional magnetic field before the mixture had been cationic photopolymerized. Magnetization and magnetoresistance measurements were performed at room temperature on the solid films produced both with zero and with an external magnetic field perpendicular with respect to the plane of the film. A complex anisotropic response has been observed and a simple model was developed to explain the results consistent with some ordering effect occurred by the application of the external magnetic field. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1590 / 1595

页数：6

共 20 条

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Key methods for developing single-wall nanotube composites [J].