基于石墨烯和高分子乳液的应变传感薄膜材料的研究

摘要

石墨烯是一种新型二维碳材料,同时具有一系列的优异的物化性能,如高透光率、高室温电子迁移率、较大的比表面积、高热导率、超高的机械强度和优异的柔韧性,引起了人们的广泛关注.石墨烯薄膜作为石墨烯材料的一种重要形态,可以充分展现石墨烯的一些优良性能,在应变传感器、可触摸电子器件等领域有广泛的应用前景.以石墨烯和丙烯酸酯乳液聚合物为原料,利用喷涂法设计组装一种新型的、可与待检测物一体化的基于石墨烯和高分子乳液的应变传感薄膜材料,并系统的研究石墨烯用量以及高分子薄膜层厚度对石墨烯薄膜微观结构、导电性及应变传感性能的影响.%Graphene, a novel two-dimensional atomic crystal consisting of a single layer of carbon atoms, has stimulated extensive studies due to its fascinating physical properties such as high transparency, high intrinsic electron mobility, large specific surface area, high thermal conductivity, supreme mechanical strength and excellent flexibility.The unique structure and excellent properties of graphene make it great potential in many fields such as strain sensor and wearable electronic devices.Graphene film, as an important form of graphene materials, can fully demonstrate the excellent properties of graphene.Anovel strain sensing film based on graphene/ polymeremulsion was prepared by spray coating method, which can be integrated with the object to be detected.The effects of spraying quantity of graphene and the thickness of emulsionon the microstructure, electrical conductivity and strain sensing properties of graphene/polymeremulsion composite films were studied.