Fabrication and Performance of Textile Pneumatic Actuators
Soft pneumatic actuators have a wide range of applications, including providing haptic feedback embedded in smart garments. Here we investigate actuators fabricated from thermoplastic coated textiles. We measure the effects of fabrication parameters on the robustness and airtightness of small, round...
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Zusammenfassung: | Soft pneumatic actuators have a wide range of applications, including
providing haptic feedback embedded in smart garments. Here we investigate
actuators fabricated from thermoplastic coated textiles. We measure the effects
of fabrication parameters on the robustness and airtightness of small, round
pneumatic pouch actuators made from heat-sealed thermoplastic
polyurethane-coated nylon, which we call PneuDots. We determine the optimal
temperature, time, and pressure for heat-pressing of the textile to create
strong bonds and identify the most effective glue to create an airtight seal at
the inlet. Compared to elastomeric pneumatic actuators, PneuDots reduce the
thickness of the actuator by 96.4% and the mass by 57.2%, increasing their
wearability while maintaining a strong force output. We evaluated the force
output of the actuators, along with their performance over time. In a blocked
force test, PneuDot maximum force transmission was 36.1N, which is 95.3% of the
peak force output of an elastomeric pneumatic actuator with the same diameter
and pressure. Cyclical testing showed that PneuDots had more stable behavior
over time. These results provide best practices for fabrication and indicate
the feasibility of textile pneumatic actuators for future wearable
applications. |
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DOI: | 10.48550/arxiv.2411.00295 |