Joining prepreg composite interfaces with aligned carbon nanotubes

被引：305

作者：

Garcia, Enrique J. ^{[1
]}

Wardle, Brian L. ^{[1
]}

Hart, A. John ^{[1
]}

机构：

[1] MIT, Cambridge, MA 02139 USA

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2008年 / 39卷 / 06期

关键词：

nano-structures; hybrid; 3-dimensional reinforcement; fracture toughness;

D O I：

10.1016/j.compositesa.2008.03.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An interlaminar reinforcement using aligned carbon nanotubes (CNTs) is demonstrated for prepreg unidirectional carbon tape composites. Aligned CNTs are grown at high temperature and then transfer-printed to prepreg at room temperature, maintaining CNT alignment in the through-thickness direction. In initial testing, the CNT-modified interface is observed to increase fracture toughness 1.5-2.5X in Mode I, and 3X in Mode II. Both compliant interlayer and bridging are considered as mechanisms of toughening, with evidence of CNT bridging observed in fracture micrographs. Fabrication methods are compatible with existing manufacturing processes and have the potential to enhance the structural and multifunctional properties of advanced composite laminates. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1065 / 1070

页数：6

共 33 条

[11] Fabrication of composite microstructures by capillarity-driven wetting of aligned carbon nanotubes with polymers [J].