Silicone based artificial skin for humanoid facial expressions

Yonas Tadesse; David Moore; Nick Thayer; Shashank Priya

doi:10.1117/12.815684

6 April 2009 Silicone based artificial skin for humanoid facial expressions

Yonas Tadesse, David Moore, Nick Thayer, Shashank Priya

Proceedings Volume 7287, Electroactive Polymer Actuators and Devices (EAPAD) 2009; 728709 (2009) https://doi.org/10.1117/12.815684
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

Artificial skin materials were synthesized using platinum-cured silicone elastomeric material (Reynolds Advanced Materials Inc.) as the base consisting of mainly polyorganosiloxanes, amorphous silica and platinum-siloxane complex compounds. Systematic incorporation of porosity in this material was found to lower the force required to deform the skin in axial direction. In this study, we utilized foaming agents comprising of sodium bicarbonate and dilute form of acetic acid for modifying the polymeric chain and introducing the porosity. Experimental determination of functional relationship between the concentration of foaming agent, slacker and non-reactive silicone fluid and that of force - deformation behavior was conducted. Tensile testing of material showed a local parabolic relationship between the concentrations of foaming agents used (per milliliter of siloxane compound) and strain. This data can be used to optimize the amount of additives in platinum cured silicone to obtain desired force - displacement characteristics. Addition of "silicone thinner" and "slacker" showed a monotonically increasing strain behavior. A mathematical model was developed to arrive at the performance metrics of artificial skin.

Citation Download Citation

Yonas Tadesse, David Moore, Nick Thayer, and Shashank Priya "Silicone based artificial skin for humanoid facial expressions", Proc. SPIE 7287, Electroactive Polymer Actuators and Devices (EAPAD) 2009, 728709 (6 April 2009); https://doi.org/10.1117/12.815684

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available