Speaker
Description
One of the research tasks for piezoresistive sensing and applications (e.g. healthcare monitoring, electronic skin, human–machine interfaces, and soft robotics) is the realization of efficient processing methods that allow both sensitivity at low and high strains [1]. Here we present such a processing method relying on extrusion involving thermoplastic polyurethane (TPU) and/or olefin block copolymer (OBC) as polymer matrix and carbon black (CB) as filler. By blend design we can access the challenging region of high sensitivity and high strain [2],[3], including a minimization of hysteresis. This is particularly true for ternary blends although basic sensing binary blends can be utilized, provided that a sufficiently high CB amount is employed. The findings are supported by dedicated SEM and TEM analysis as well as mechanical analysis.
[1] L. Duan, D.R. D’hooge, L. Cardon Prog. Mater. Sci. 2020, 114, 100617
[2] L. Duan, D.R. D’hooge, M. Spoerk, P. Cornillie, L. Cardon ACS Appl. Mater. Interfaces 2018, 10, 22678
[3] L. Duan, M. Spoerk, T. Wieme, P. Cornillie, H. Xia, J. Zhang, L. Cardon, D.R. D’hooge Compos. Sci. Technol. 2019 , 171, 78
| Speaker Country | Belgium |
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