Facile preparation of a polysiloxane-based hybrid composite with highly-oriented boron nitride nanosheets and an unmodified surface

被引：63

作者：

Cho, Hong-Baek ^{[1
]}

Nakayama, Tadachika ^{[1
]}

Tokoi, Yoshinori ^{[1
]}

Endo, Shin ^{[1
]}

Tanaka, Satoshi ^{[1
]}

Suzuki, Tsuneo ^{[1
]}

Jiang, Weihua ^{[1
]}

Suematsu, Hisayuki ^{[1
]}

Niihara, Koichi ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Extreme Energy Dens Res Inst, Niigata 9402188, Japan

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 12期

关键词：

Coating; Hybrid composite; Nano particles; Anisotropy; X-ray diffraction (XRD); GROWN CARBON-FIBERS; NANOTUBES; ALIGNMENT; POLYMER;

D O I：

10.1016/j.compscitech.2010.05.012

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A facile technique was developed to fabricate polysiloxane-based hybrid composite films containing boron nitride (BN) nanosheets using a nanopulse-width electric field. BN nanosheets assumed anisotrophic alignment under the electric field, without requiring surface coating with metallic nano particles despite the wide band gap. BN was dispersed by sonication in a pre-polymer polysiloxane mixture. The homogeneous suspension was cast on a glass spacer and subjected to either a DC electric field or a nanopulse-width electric field before the mixture was cured through polymerization. X-ray diffraction (XRD) and scanning electron microscopy (SEM) revealed that BN nanosheets in the polysiloxane matrix were aligned with high anisotropy to the electric field direction, which was perpendicular to the film plane. The transmittance of the film samples, measured by UV-visible spectrometry, indicated that the composite, prepared using a nanopulse-width electric field manifested a significantly improved transmittance, compared with composites prepared without using the electric field. (c) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1681 / 1686

页数：6

共 26 条

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