无机材料学报2026，Vol.41Issue(5)：619-627,中插4-中插6,12.DOI:10.15541/jim20250286
聚氨酯-碳纳米管@碲化铋复合气凝胶的制备及传感性能
Polyurethane-carbon Nanotubes@Bismuth Telluride Hybrid Aerogel:Preparation and Sensing Properties
摘要
Abstract
With the rapid development of intelligent equipment such as bionic humanoid robots,flexible tactile sensors have attracted increasing attention for their bionic haptic behaviors similar to human fingers.However,the existing sensing materials used for assembling multimodal flexible tactile sensors still lack the high-selective response capabilities,resulting in the cross-interference phenomenon of various output signals,which is difficult to meet the lightweight and integrated requirements of microsystems.In this study,a new-style polyurethane-carbon nanotubes@bismuth telluride(WPU-CNT@Bi2Te3)hybrid aerogel was designed and prepared,which exhibits a maximum compressive strain of 60%and a compressive strength of 9.4 kPa via the optimization of component ratios.Furthermore,according to the independent sensing principles of the piezoresistive effect of CNTs to mechanical pressure stimuli,and the thermoelectric effect of Bi2Te3 to changes in the external temperature,this hybrid aerogel derived flexible tactile sensor achieves high sensitivity(GF value of-1.28 kPa-1,temperature response sensitivity of 1.2 K-1,and minimum response temperature difference of 0.4 K)and rapid response behaviors(response and recovery times of 0.14 and 0.18 s for pressure,optimal response time of 0.28 s for temperature)to temperature and pressure,with high sensing stability(no degradation after 1300 thermal cycles)and non-mutual interference behaviors,endowing the equipped robotic hand with the perception capability to recognize both the hardness and temperature of various objects.关键词
气凝胶/柔性传感器/压阻效应/热电效应Key words
aerogel/flexible sensor/piezoresistive effect/thermoelectric effect分类
通用工业技术引用本文复制引用
曹颖,彭露,夏双,白菊,张珽,李铁..聚氨酯-碳纳米管@碲化铋复合气凝胶的制备及传感性能[J].无机材料学报,2026,41(5):619-627,中插4-中插6,12.基金项目
江西省自然科学基金杰出青年基金(20224ACB212001) （20224ACB212001）
国家自然科学基金(62471466,62125112) （62471466,62125112）
姑苏领军人才项目(ZXL2024378)Jiangxi Provincial Natural Science Foundation of Distinguished Young Scholars Fund Project(20224ACB212001) （ZXL2024378）
National Natural Science Foundation of China(62471466,62125112) （62471466,62125112）
Gusu Leading Talent Program(ZXL2024378) （ZXL2024378）
