fairfolio
Saved Projects

Developing a Flexible, Stretchable, and Conductible Polyurethane/Liquid Metal Composite for Future Electronics

ISEF · 2021 Materials Science

Xu, Kasey · St. John's School

Overview

A flexible, stretchable, and conductible polyurethane/liquid metal composite was developed by combining polyurethane and gallium indium tin alloy liquid metal (Galinstan). The composite material was created by infusing galinstan into the polyurethane tube and sealing the ends to hardening. Thereafter, the resistance and the properties of tensile recovery were tested. As a result, the composite material could extend up to 299.5 % of its normal length without any significant electrical resistance changes until it reached beyond the maximum tensile point. After 100 stretching cycles, the resistance remains stable, thus showing the good reusability, stretchability, and stable conductivity of the composite material. These qualities support the composite material's usage in many applications in the real world, such as in medical technology and future electronics.

Competition history

  • ISEF 2021 Materials Science · Entry MATS046 Affiliated fair in Guam

Resources

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

Source: Regeneron International Science and Engineering Fair

Save projects to your library

Sign in with Google to keep track of projects you find interesting, organized into folders. An account also raises your daily allowance for “Has this been done?”, and lets you create a key for the MCP server with a much higher limit than anonymous use. Browsing stays public.

Continue with Google