Carbon nanotube coated glass fibres for interphase health monitoring in textile composites
Carbon nanotube coated glass fibres for interphase health monitoring in textile composites
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DOI：
10.1179/175355511x13007211259042
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发表时间：
2011-07-01
影响因子：
3.1
通讯作者：
Maeder, E.
中科院分区：
文献类型：
--
作者：
Rausch, J.;Maeder, E.
本文报道了一种新的纺织复合材料健康监测方法。在玻璃纤维（GF）纱线上涂覆碳纳米管（CNT）填充的成膜器，可在GF表面形成导电路径。通过将碳纳米管改性纱线嵌入聚丙烯基体中，可以创建一个功能界面，可用于纺织复合材料中高度局部的健康监测。健康监测是基于复合材料界面中渗透碳纳米管网络在外加应力作用下的电阻变化。间相传感器可用于间相应变的间接测量，也可用于确定机械加载过程中累积的间相损伤。此外，该系统对增强纤维的断裂很敏感。
In this study, a novel approach for health monitoring in textile composites is reported. Coating glass fibre (GF) yarns with a carbon nanotube (CNT) filled film former results in the formation of electrically conductive paths on the GF surface. By embedding the CNT modified yarns into a polypropylene matrix, a functional interphase is created which can be used for highly localised health monitoring in textile composites. The health monitoring is based on the resistance change of the percolated CNT network in the composites interphase due to applied external stresses. The interphase sensor can be used for an indirect measurement of interphase strain as well as for the determination of the accumulated interphase damage during mechanical loading. Moreover, the system is sensitive to the breakage of the reinforcement fibres.