Carbon nanotube-reinforced epoxy-compo sites:: enhanced stiffness and fracture toughness at low nanotube content
Carbon nanotube-reinforced epoxy-compo sites:: enhanced stiffness and fracture toughness at low nanotube content
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DOI：
10.1016/j.compscitech.2004.04.002
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发表时间：
2004-11-01
影响因子：
9.1
通讯作者：
Schulte, K
中科院分区：
文献类型：
--
作者：
Gojny, FH;Wichmann, MHG;Schulte, K
采用标准压延工艺制备了双壁碳纳米管（DWCNTs）和环氧基复合材料。可以观察到DWCNTs和炭黑（CB）在环氧树脂中的良好分散。对断裂力学性能的研究表明，当纳米管含量仅为0.1 wt%时，强度、杨氏模量和破坏应变都有所增加。实验得到的杨氏模量的相关性与修正的Halpin-Tsai理论有很好的一致性。此外，纳米复合材料的断裂韧性显著提高。(C) 2004 Elsevier Ltd.版权所有。
Nanocomposites consisting of double-wall carbon nanotubes (DWCNTs) and an epoxy matrix were produced by a standard calandering technique. A very good dispersion of both DWCNTs and carbon black (CB) in an epoxy resin could be observed. The investigation of the (fracture-) mechanical properties resulted in an increase of strength, Young's modulus and strain to failure at a nanotube content of only 0.1 wt%. The correlation of the experimentally obtained Young's moduli showed a good agreement with a modified Halpin-Tsai theory. In addition a significantly improved fracture toughness could be observed for the nanocomposites. (C) 2004 Elsevier Ltd. All rights reserved.