Conductive elastomeric composites

Elastomeric conductive composites based on carbon nanotube forests.

Electrically conductive materials capable of substantial elastic stretch and bending are needed for such applications as smart clothing, flexible displays, stretchable circuits, strain gauges, implantable devices, high-stroke microelectromechanical systems, and dielectric elastomer actuators. A variety of approaches involving carbon nanotubes (CNTs) and elastic polymers have been suggested for ...

Electrically Conductive Latex-Based Composites

Electrically conductive polymer composites filled with carbon black can exhibit the mechanical behavior of a polymer and metallic electrical conductivity. Unfortunately, excessive amounts of carbon black can produce brittle films and too little carbon black can result in low conductivity. Composite conductivity can be dramatically improved by using latex as the matrix starting material. Latex p...

Elastomeric composites with tuned electromagnetic characteristics

This paper presents a novel elastomeric composite that exhibits a deformation-induced change in chirality. Previous efforts primarily dealt with a coil array in air without chiral tuning. Here, a composite is created that consists of an array of parallel, metallic helices of the same handedness embedded in a polymer matrix. The chiral response of the composite depends on pitch, coil diameter, w...

Lead Free Conductive Composites for Electrical Interconnections

Preparation and Characterization of Shape Memory Elastomeric Composites

Shape memory polymers (SMPs) are a class of smart poly-meric materials that have the ability to " memorize " a permanent shape, be manipulated to retain or " fix " a temporary shape, and later recover to its original (permanent) shape upon a stimulus such as heat, electricity, or irradiation. 1-3 A large number of SMPs have been developed and utilized for actua-tors, deployable medical devices,...