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Statistical Modeling of Photo-Bending Actuation of Hybrid Silicones Mixed with Azobenzene Powder

1
Center for Data Science, Waseda University, 27 Waseda-cho, Shinjuku-ku, Tokyo 169-0042, Japan
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TIPs Department, CP165/67, Université libre de Bruxelles, 50 Av. Franklin Roosevelt, 1050 Brussels, Belgium
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Department of Life Science and Medical Bioscience, Graduated School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 169-8480, Japan
4
Research Organization for Nano & Life Innovation, Waseda University, 513 Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
*
Authors to whom correspondence should be addressed.
Actuators 2019, 8(4), 68; https://doi.org/10.3390/act8040068
Received: 6 September 2019 / Revised: 17 September 2019 / Accepted: 18 September 2019 / Published: 20 September 2019
Mechanically responsive materials are promising as next-generation actuators for soft robotics, but have scarce reports on the statistical modeling of the actuation behavior. This research reports on the development and modeling of the photomechanical bending behavior of hybrid silicones mixed with azobenzene powder. The photo-responsive hybrid silicone bends away from the light source upon light irradiation when a thin paper is attached on the hybrid silicone. The time courses of bending behaviors were fitted well with exponential models with a time variable, affording fitting constants at each experimental condition. These fitted parameters were further modeled using the analysis of variance (ANOVA). Cubic models were proposed for both the photo-bending and unbending processes, which were parameterized by the powder ratio and the light intensity. This modeling process allows such photo-responsive materials to be controlled as actuators, and will possibly be effective for engineering mechanically responsive materials. View Full-Text
Keywords: photo-actuation; statistical modeling; bending behavior; hybrid silicone; azobenzene powder photo-actuation; statistical modeling; bending behavior; hybrid silicone; azobenzene powder
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MDPI and ACS Style

Taniguchi, T.; Blanc, L.; Asahi, T.; Koshima, H.; Lambert, P. Statistical Modeling of Photo-Bending Actuation of Hybrid Silicones Mixed with Azobenzene Powder. Actuators 2019, 8, 68.

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