Research Progress of Flexible Polymer Foam Pressure Sensors
Flexible foam pressure sensors,characterized by excellent flexibility,stretchability,conformability,and high sensitivity,have emerged as the key components in the human-machine interactions,wearable electronics,smart robotics,and related fields.With the increasing application demands,researchers aim to develop higher-performance materials for fabricating flexible foam pressure sensors.Polymer-based conductive foam composites are preferred due to their outstanding mechanical properties,good chemical properties,and strong controllability.This review focused on the latest research progresses of flexible foam pressure sensors based on different materials,fabrication processes,properties,and applications.The different polymer materials(such as polydimethylsiloxane,polyurethane,polyvinylidene fluoride,etc.)used to prepare the foam bases and the different conductive fillers(metal nanoparticles,graphene,polypyrrole,etc.)used to prepare the conductive foams were introduced.Advantages and limitations of the common preparation processes of flexible foam pressure sensors(including in-situ polymerization,spraying,dipping,blending,etc.)were compared.The methods and mechanisms to improve the sensitivity and detection range of the flexible foam pressure sensors were presented,and the application prospects of the flexible foam pressure sensors in the field of health monitoring were forecasted.
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维普
