Carbon nanotube grafted silica fibres: Characterising the interface at the single fibre level

被引：91

作者：

Qian, Hui ^{[1
,2
]}

Bismarck, Alexander ^{[2
]}

Greenhalgh, Emile S. ^{[3
]}

Shaffer, Milo S. P. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

[2] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn, PaCE Grp, London SW7 2AZ, England

[3] Univ London Imperial Coll Sci Technol & Med, Composites Ctr, London SW7 2AZ, England

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 02期

关键词：

Carbon nanotubes; Hybrid composites; Fragmentation; Interfacial strength; Chemical vapour deposition (CVD); COMPOSITES; SURFACE; REINFORCEMENT; STRENGTH; GROWTH; LENGTH;

D O I：

10.1016/j.compscitech.2009.11.014

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Model polymer composites containing carbon nanotube (CNT) grafted fibres provide a means to investigate the influence of nanostructures on interfacial properties. Well-aligned nanotubes, with controllable length, were grown on silica fibres by using the injection chemical vapour deposition method, leading to a significant increase of the fibre surface area. In single fibre tensile tests, this CNT growth reaction reduced the fibre strength, apparently due to catalyst etching; however, the fibre modulus increased significantly. Contact angle measurements, using the drop-on-fibre method, indicated an excellent wettability of the CNT-grafted fibres by poly(methyl methacrylate) (PMMA). PMMA model composites were fabricated and studied using the single fibre fragmentation tests. A dramatic improvement (up to 150%) of the apparent interfacial shear strength (IFSS) was obtained for the composites containing CNT-grafted fibres. The improvement of IFSS was also influenced by the length and morphology of the grafted CNTs. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：393 / 399

页数：7

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