Electrical Resistance Prediction for Functionalized Multi-Walled Carbon Nanotubes/Epoxy Resin Composite Gasket under Thermal Creep Conditions

Author:

Wang Wenlong,Yue Xia,Huang He,Wang Chao,Mo Diwei,Wu Yuyan,Xu Qingchun,Zhou Chao,Zhu Houyao,Zhang Chunliang

Abstract

Carbon nanotube-based conductive polymer composites (CPC) showed great potentials for self-sensing and in situ structural health monitoring systems. Prediction of the long-term performance for such materials would be a meaningful topic for engineering design. In this work, the changing behavior of the long-term resistance of a multi-walled carbon nanotubes/epoxy resin composite gasket was studied under different temperature and loading conditions. Glass transition strongly influenced the resistance behavior of the composite during the thermal creep process. Similar to classical Kelvin–Voigt creep model, a model considering both the destruction and recovery processes of the conductive network inside the CPC was established. The long-term resistance variation can be predicted based on the model, and the results provided here may serve as a useful guide for further design of smart engineering structural health monitoring systems.

Funder

National Natural Science Foundation of China

Key Technologies Research and Development Program of Guangzhou

Publisher

MDPI AG

Subject

General Materials Science

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