In this paper,a porous polydimethylsiloxane/multi-walled carbon nanotubes(PDMS/MWCNTs)is fabricated,and a self-powered pressure monitoring sensor is designed using the composite.The incorporation of MWCNTs can increase the di-electric constant of the composite material,and the porous structure is formed by dissolving carbon sugar in water by a heating pro-cess can capture more electric charge.The coupling effect can improve the output performance and the sensitivity of sensor.The ex-perimental results show that when the MWCNTs are 10wt%and the porosity is 62.8%in the single electrode mode,the open-circuit voltage and short-circuit current of the self-powered sensor can reach 90 V and 2 μA,respectively.The sensor also has the advan-tages of simple process,wide pressure detection field(0 N～125 N),fast response speed(25 ms),good stability(1 800 cycles)and so on.In addition,human feet pressure monitoring system is constructed and it's verified that the sensor can realize self-func-tional sensing monitoring.This work has great application prospects in human health monitoring systems.
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