Department - Author 1
Materials Engineering Department
Degree Name - Author 1
BS in Materials Engineering
Date
6-2017
Primary Advisor
Linda Vanasupa
Abstract/Summary
This project investigated the viability of screen printing stretchable silver conductive paste directly onto fabric and how the resistance changed under cyclic mechanical loading. The paste tested was DuPont™ PE873 stretchable silver conductive paste, which forms a stretchable conductive path by suspending silver flakes in elastomer that can be elastically strained along with the underlying substrate. The silver pastes were printed directly onto two different high-density synthetic fabrics of different weaves. Other samples were prepared by first printing a base layer between the silver paste and the fabric. One base layer was a solvent-based dielectric (DuPont™ ME776) and a stretchable carbon conductor (DuPont™ PE671). This project determined that printing onto either base layer had a significantly smaller change in resistance under cyclic tensile tests than printing onto the fabric directly. Bend tests also revealed the possibility that the rate of change of strain had a higher impact on the change in resistance than the strain itself.
URL: https://digitalcommons.calpoly.edu/matesp/155