Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase.
Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase.
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DOI：
10.3390/ma11071075
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发表时间：
2018-06-25
期刊：
影响因子：
--
通讯作者：
Heinrich G
中科院分区：
文献类型：
--
作者：
Müller MT;Pötzsch HF;Gohs U;Heinrich G
通过用不同的高导电碳同素异形体如碳纳米管（CNT）、石墨烯纳米片（GNP）或导电炭黑（CB）纳米结构化玻璃纤维界面来实现机电响应行为。这些多功能玻璃纤维的在线结构健康监测的操作能力在无端玻璃纤维增强聚丙烯中得到证明。在各种碳改性的静态或动态三点弯曲测试期间，机电响应行为显示出由于纳米颗粒的不同纵横比和界面中相关的导电网络密度而导致的信号质量和灵敏度的定性差异。根据玻璃纤维增强复合材料内的嵌入位置，纤维的压缩、剪切和拉伸载荷可以通过相应电信号的不同特征来区分。在动态加载过程中发生的不可逆的信号变化，可以归因于填料的重取向过程所造成的聚合物蠕变或破坏的导电路径的玻璃纤维界面的裂纹。
An electromechanical response behavior is realized by nanostructuring the glass fiber interphase with different highly electrically conductive carbon allotropes like carbon nanotubes (CNT), graphene nanoplatelets (GNP), or conductive carbon black (CB). The operational capability of these multifunctional glass fibers for an online structural-health monitoring is demonstrated in endless glass fiber-reinforced polypropylene. The electromechanical response behavior, during a static or dynamic three-point bending test of various carbon modifications, shows qualitative differences in the signal quality and sensitivity due to the different aspect ratios of the nanoparticles and the associated electrically conductive network densities in the interphase. Depending on the embedding position within the glass fiber-reinforced composite compression, shear and tension loadings of the fibers can be distinguished by different characteristics of the corresponding electrical signal. The occurrence of irreversible signal changes during the dynamic loading can be attributed to filler reorientation processes caused by polymer creeping or by destruction of electrically conductive paths by cracks in the glass fiber interphase.
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DOI：
10.3390/ma10050545
发表时间：
2017-05-18
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Müller MT;Hilarius K;Liebscher M;Lellinger D;Alig I;Pötschke P
通讯作者：
Pötschke P
影响因子：
9.1
作者：
Schueler, R;Joshi, SP;Schulte, K
通讯作者：
Schulte, K
影响因子：
3.1
作者：
Rausch, J.;Maeder, E.
通讯作者：
Maeder, E.
影响因子：
29.4
作者：
Zhang, Jie;Liu, Jianwen;Gao, Shanglin
通讯作者：
Gao, Shanglin
影响因子：
9.1
作者：
Rausch, J.;Maeder, E.
通讯作者：
Maeder, E.