ReRobot: Recycled Materials for Trustworthy Soft Robots

Alixander J Partridge, Hsing-Yu Chen, Anthony Le, Ciqun Xu, Hendrik Eichhorn, Emanuele Pulvirenti, Arianna Manzini, Andrew T Conn, Jonathan M Rossiter

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)


The ethical sourcing and disposal of materials has become ubiquitous and necessary across society. However, this trend towards increased sustainability has yet to find parallels in robotics research. Within the field of soft robotics, large quantities of silicones, rubbers and other elastomers are used to construct the various soft bodies and actuators. As the field grows, this will have a large negative impact on the environment. In this work we propose the effective recycling of elastomeric materials, thereby reducing the amount of new material needed, lowering costs and reducing the amount of harmful waste. We present a non-chemical process of elastomer recycle-and-reuse, where elastomeric material from old and broken soft actuators is ground into granules ranging from ≤1 mm in diameter to 3 mm in diameter and used to create new soft actuators without loss of function. Characterisation tests show that although ultimate yield strain and stress reduce with the percentage of recycled material, the silicone composites exhibit very comparable elastic properties to the pristine silicone. This suggests an effective recycling pipeline where materials are recycled into different, lower-risk, applications at each iteration. We demonstrate the effectiveness of this process in a high strain recycled bladder actuator and a soft gripper.
Original languageEnglish
Title of host publication2022 IEEE 5th International Conference on Soft Robotics, RoboSoft 2022
Number of pages6
ISBN (Electronic)9781665408288
Publication statusPublished - 28 Apr 2022

Publication series

Name2022 IEEE 5th International Conference on Soft Robotics, RoboSoft 2022

Bibliographical note

Publisher Copyright:
© 2022 IEEE.


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