Flexible pressure sensor based on shaddock peel carbon and preparation method and application thereof

Abstract

The invention provides a flexible pressure sensor based on shaddock peel carbon and a preparation method and application thereof, and relates to the technical field of biomass material processing materials. According to the preparation method, the shaddock peel is subjected to hydrothermal reaction, and part of organic matters such as saccharides and hemicellulose can be removed in the process; the shaddock peel hydrogel is carbonized to obtain the 3D porous carbon aerogel, the 3D structure of the carbon aerogel can be fully reserved in the process, and when the flexible pressure sensor is prepared from the 3D porous carbon aerogel, on one hand, the mechanical property of the pressure sensor can be improved; on the other hand, sensitivity and response time of the pressure sensor can be improved; the 3D porous carbon aerogel is mixed with the flexible polymer, the flexible polymer can be filled in the 3D porous carbon aerogel, and a flexible elastomer is formed through a curing reaction, so that the prepared flexible pressure sensor has excellent stability and mechanical performance and good sensing performance.

Description

technical field

[0001] The invention relates to the technical field of biomass material processing materials, in particular to a flexible pressure sensor based on grapefruit peel carbon and its preparation method and application. Background technique

[0002] Flexible pressure sensors that can convert external pressure into electrical signal output have attracted extensive attention and have great potential for applications in various fields, such as wearable electronics, robotics, and real-time health monitoring. At present, there are two effective ways to improve the sensitivity and working pressure range of flexible pressure sensors by introducing advanced conductive materials and constructing good microstructures: on the one hand, using materials with good conductivity such as metal nanoparticles, metal nanowires, metal Membranes, metal oxides, carbon nanotubes, graphene, conductive polymers, and bio-based carbonized materials have been used to fabricate pressure sensors...