3821523

Conductive polymer coated melamine sponge for piezoresistive pressure sensor | Poster Board #917

Date
March 26, 2023

An increasing popularity for wearable technology has created a demand for flexible sensors and electronics. The current electronics are fabricated on rigid structures, which significantly limit their applications in wearable electronics. Soft materials that can be both flexible and conductive are the key to the future of wearable electronics. In this work, flexible piezoresistive pressure sensors were fabricated based on melamine sponges coated with conductive polymers. Two different methods were used to prepare the conductive melamine sponges. For the chemical vapor deposition method, poly(3,4-ethelendioxythiophene) (PEDOT) was coated on the melamine sponge by FeCl 3 catalyzed vapor polymerization of 3,4-ethelendioxythiophene (EDOT); for the other method, polymerization was performance by dipping the FeCl 3 coated melamine sponge in a solution of EDOT. The resistance of both functionalized sponges decreased with an increase in applied pressure. These piezoresistive sensors could be used to create a motion tracking suit. Because of the different sensitivity of the sensors based on these sponges they might be used to track large and small movements.

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