用于主动压力传感的超弹性、大孔聚苯乙烯介导的石墨烯气凝胶

Superelastic, Macroporous Polystyrene-Mediated Graphene Aerogels for Active Pressure Sensing.

作者信息

Zhang Panpan, Lv Lingxiao, Cheng Zhihua, Liang Yuan, Zhou Qinhan, Zhao Yang, Qu Liangti

机构信息

Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectric/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology, Beijing, 100081, China.

出版信息

Chem Asian J. 2016 Apr 5;11(7):1071-5. doi: 10.1002/asia.201600038. Epub 2016 Feb 25.

DOI:10.1002/asia.201600038

PMID:26852896

Abstract

Three-dimensional (3D) graphene-based polymer/graphene aerogels with excellent mechanical properties are crucial for broad applications. The creation of such polymer/graphene aerogels remains challenging because of the poor dispersion and compatibility of polymer within the graphene matrix. By using the freezing-directed assembly of graphene under the assistance of surfactant, 3D macroporous polystyrene/graphene aerogels (MPS-GAs) with lightweight, superelastivity (80 % strain), high strength (80 kPa), and good electrical properties have been achieved in this study. The as-prepared MPS-GAs shows excellent electromechanical performance with stable cyclic resilient properties and sensitive resistance responses, thus making the MPS-GAs promising candidates for applications in actuators, elastic conductors, strain/pressure sensors, and wearable devices.

摘要

具有优异机械性能的三维（3D）石墨烯基聚合物/石墨烯气凝胶对于广泛应用至关重要。由于聚合物在石墨烯基质中的分散性和相容性较差，制备此类聚合物/石墨烯气凝胶仍然具有挑战性。通过在表面活性剂的辅助下利用石墨烯的冷冻定向组装，本研究制备出了具有轻质、超弹性（80%应变）、高强度（80 kPa）和良好电学性能的三维大孔聚苯乙烯/石墨烯气凝胶（MPS-GAs）。所制备的MPS-GAs表现出优异的机电性能，具有稳定的循环弹性性能和灵敏的电阻响应，因此使MPS-GAs成为用于致动器、弹性导体、应变/压力传感器和可穿戴设备的有前途的候选材料。