导电聚合物复合材料在交通领域的研究进展

Polymer-based conductive composites have garnered increasing attention in the field of transportation, owing to their outstanding electrical conductivity, synergistic deformation characteristics with matrix structures, and in-situ monitoring capabilities. To facilitate their broader application, elucidate prevailing research challenges as well as prospective development trajectories, this research provided a comprehensive review of recent advances in polymer-based conductive composites within the transportation domain. Firstly, viewing from the material composition and preparation process, the influences of various matrix materials (such as polypropylene and epoxy resin) and conductive fillers (such as carbon nanotubes, graphene and metal particles et.) on the comprehensive performances of composite materials were analyzed, and the regulatory effects of different preparation techniques, such as solution mixing and melt blending method, on the comprehensive performance of composite materials were discussed. Secondly, the performances characterization of polymer-based conductive composites were reviewed, delineating how functional properties, such as temperature sensitivity and mechanical responsiveness, vary under complex environmental factors like temperature and force fields. Thirdly, the conductive mechanisms underlying polymer-based composites were then explored, with a focus on how the dispersion and interaction of distinct conductive fillers contribute to enhanced conductivity. Finally, the practical applications of these composites as sensors were presented, emphasizing their deployment in transportation infrastructure and intelligent traffic management, along with an assessment of their operational efficacy. Based on the current research findings and technical challenges, it is evident that polymer-based conductive composites hold substantial promise for widespread application in transportation. Nevertheless, the challenges concerning sensors durability and functionality warrant further innovation and improvement.