Health monitoring in continuous glass fibre reinforced thermoplastics: Manufacturing and application of interphase sensors based on carbon nanotubes
Health monitoring in continuous glass fibre reinforced thermoplastics: Manufacturing and application of interphase sensors based on carbon nanotubes
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DOI：
10.1016/j.compscitech.2010.05.018
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发表时间：
2010-10-15
影响因子：
9.1
通讯作者：
Maeder, E.
中科院分区：
文献类型：
--
作者：
Rausch, J.;Maeder, E.
在本研究中，提出了一种将渗滤碳纳米管（CNTs）掺入复合材料界面来监测GF增强复合材料健康的新方法。这是通过将碳纳米管填充涂层应用于玻璃纤维（GF）来实现的。利用碳纳米管的电学特性，可以对复合材料界面进行高度局部化的监测。该方法在很大程度上与基体材料无关，可以应用于热塑性或热固性树脂基体材料，只需稍加调整。碳纳米管涂层的纤维纱线的阻力与纱线长度、涂层的碳纳米管重量分数以及涂层在纤维纱线上的用量呈线性关系。通过对嵌在聚丙烯基体中的碳纳米管涂层的GF纱线进行拉伸测试和同时电阻测量，监测了机械加载过程中的界面行为，提供了这一特定区域的信息。这允许将间相失效或GF断裂与电阻数据联系起来，并证明了这种方法用于GF增强复合材料健康监测的潜力。(C) 2010 Elsevier Ltd.版权所有。
In this study, a new approach for health monitoring of GF reinforced composites is presented by incorporating percolated carbon nanotubes (CNTs) into the composites interphase. This is achieved applying CNT-filled coatings to glass fibres (GF). Taking advantage of the electrical properties of CNTs, this allows a highly localized monitoring of the composites interphase.The approach is largely independent on matrix material and can be applied to thermoplastic or thermoset resin matrix materials with minor adjustments. The resistance of CNT-coated GF yarns shows a linear dependence on the yarn length and depends on the CNT weight fraction of the coating, as well as on the amount of coating on the GF yarn. Performing tensile tests in combination with simultaneous resistance measurements on CNT-coated GF yarns embedded in a polypropylene matrix, the interphase behaviour during mechanical loading is monitored, providing information on this specific area. This allows relating interphase failure or GF breakage to the resistance data and demonstrates the potential of this approach for health monitoring of GF reinforced composites. (C) 2010 Elsevier Ltd. All rights reserved.