PVA/PANI-DBSA Nanomesh Tactile Sensor for Force Feedback

• Published in: Polymers Vol. 16; no. 11; p. 1449
• Main Authors: Wang, Boyi, Du, Rong, Liu, Yi, Song, Han
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 21.05.2024; MDPI
• Subjects: Analysis; Aniline; Benzene; Carbon; Chemical processes; Design; Electron microscopes; electrospinning; Feedback; Graphene; Humidity; Methods; Microstructure; Morphology; nanomesh; Nanoparticles; PANI-DBSA; piezoresistive; Polyanilines; Polymers; Polyvinyl alcohol; Properties; Prostheses; Recovery time; Sensors; Sodium dodecylbenzenesulfonate; Structure; tactile sensors; Tactile sensors (robotics); Touch; China; United States > US; piezoresistive; nanomesh; electrospinning; tactile sensors; PANI-DBSA
• ISSN: 2073-4360; 2073-4360
• DOI: 10.3390/polym16111449

Touch serves as an important medium for human-environment interaction. The piezoresistive tactile sensor has attracted much attention due to its convenient technology, simple principle, and convenient signal acquisition and analysis. In this paper, conductive beads-on-string polyvinyl alcohol (PVA)/polyaniline doped with dodecyl benzene sulfonic acid (PANI-DBSA) nanofibers were fabricated via the electrospinning technique. Due to the special nanostructure of PVA-coated PANI-DBSA, the tactile sensor presented a wide measuring range of 12 Pa-121 kPa and appreciable sensitivity of 8.576 kPa at 12 Pa~484 Pa. In addition, the response time and recovery time of the sensor were approximately 500 ms, demonstrating promising prospects in the field of tactile sensing for active upper limb prostheses.