Nonlinear resistivity polymer composites filled with graphene oxide

RPI ID: 2012-014-401

Innovation Summary:
This invention introduces a graphene oxide-polymer composite material that exhibits nonlinear electrical resistivity, enabling its use in advanced sensing, switching, and protection applications. The material is formed by dispersing graphene oxide (GO) into a polymer matrix, resulting in a composite whose electrical resistance changes significantly with applied voltage or current. This behavior is tunable based on the GO concentration and processing conditions, offering a new class of smart materials for electronic and energy systems.

Challenges / Opportunities:
Conventional conductive polymers and composites often lack tunable or nonlinear electrical properties, limiting their use in dynamic or adaptive systems. This invention addresses that gap by providing a scalable, flexible, and responsive material that can act as a voltage-sensitive resistor, surge protector, or current limiter. It opens opportunities in flexible electronics, wearable sensors, and circuit protection, where adaptive electrical behavior is highly desirable.

Key Benefits / Advantages:
✔ Tunable nonlinear resistivity for adaptive electronic applications
✔ Lightweight, flexible, and processable using standard polymer techniques
✔ Scalable for large-area or embedded electronics
✔ Potential for integration into smart textiles and flexible circuits

Applications:
• Flexible and wearable electronics
• Surge protection and current limiting devices
• Smart sensors and switches
• Energy storage and management systems

Keywords:
#grapheneoxide #nonlinearresistivity #smartmaterials #flexibleelectronics #polymercomposites

Intellectual Property:
US Issued Patent 9,502,150