Ms. Fanny Ho Profile

Fanny Ho

at Nanyang Technological Univ

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 29 March 2019 Presentation

Self-contained liquid filler-polymer composites as active layer for DEAs (Conference Presentation)

Ankit Ankit, Fanny Ho, Naveen Tiwari, Febby Krisnadi, Soo Jin Adrian Koh, Nripan Mathews

Proceedings Volume 10966, 109661N (2019) https://doi.org/10.1117/12.2514394

KEYWORDS: Composites, Liquids, Electroactive polymers, Robotics, Additive manufacturing, Polymers, Tissues, Shape memory polymers, Magnetism, Chemical reactions

Read Abstract +

Animals make use of soft tissues and muscles to produce fluidic motion with superior deformability and adaptability. Soft robotics focuses on mimicking these natural soft systems to produce similar motion. Common approaches to achieve actuation in soft robotics are pneumatics, fluidics, shape memory materials, magnetic fields, chemical reactions and electroactive polymers (EAPs). EAPs are particularly interesting due to their high efficiencies, lightweight design and superior structural compliance. Dielectric elastomer actuators (DEAs), an EAP, can produce large strains, low cost and complexity of fabrication. Performance of a DEA depends on intrinsic material properties like relative permittivity and Young’s modulus. Conventional approaches to manipulate either of these material properties have made use of solid fillers, chemical additives and modifications of polymer backbone, and are generally accompanied with undesirable effects on other properties. In the present work, we demonstrate the fabrication of self-contained liquid filler-polymer composite, with synergetic effects on electrical and mechanical properties of the resulting matrix. A high-k, non-reactive liquid filler was hand mixed with PDMS (polydimethylsiloxane). These composites show an increase of 2 times in the relative permittivity (dielectric constant) and softening of the matrix (more than 50 times decrease in the Young’s modulus), compared to the pristine polymer. The composites can be actuated without pre-stretch with visibly detectable deformations and the figure of merit for electro-mechanical performance was calculated at an impressive value of 94. These ultra-soft composites can be used for applications such as soft robotics, optoelectronics and wearable electronics.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years