Enhanced dielectric strength and actuation of acrylic elastomer with silicone gel encapsulation

Thanh-Giang La; Gih-Keong Lau

doi:10.1117/12.2219564

15 April 2016 Enhanced dielectric strength and actuation of acrylic elastomer with silicone gel encapsulation

Thanh-Giang La, Gih-Keong Lau

Proceedings Volume 9798, Electroactive Polymer Actuators and Devices (EAPAD) 2016; 97980D (2016) https://doi.org/10.1117/12.2219564
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2016, Las Vegas, Nevada, United States

Abstract

Use of dielectric gel encapsulation is reported to make acrylic elastomer (VHB 4905) electrically stronger. Acrylic dielectric elastomer actuators (DEA) with silicone gel encapsulation can sustain an electrical breakdown field of up to 532MV/m, higher than 315MV/m of non-coated ones. Hence, its ultimate areal strain of 228% is larger than 189% of latter. This enhanced dielectric strength and actuation is attributed to the delayed electrothermal breakdown of VHB with silicone gel encapsulant that bars oxygen supply in air.

Conference Presentation

Citation Download Citation

Thanh-Giang La and Gih-Keong Lau "Enhanced dielectric strength and actuation of acrylic elastomer with silicone gel encapsulation", Proc. SPIE 9798, Electroactive Polymer Actuators and Devices (EAPAD) 2016, 97980D (15 April 2016); https://doi.org/10.1117/12.2219564

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