Influence of Sweat on Joint and Sensor Reliability of E-Textiles

This article addresses reliability under the sweat of interconnection techniques for mounting surface mounted device (SMD) components and fully printed humidity sensors onto conductive stretchable textile ribbons. Samples underwent testing effect ageing by artificial on their electrical resistance using both alkaline acidic sweat. The best results in terms change were obtained samples soldered to fibers interwoven ribbon. However, this method can damage ribbon due high temperature during soldering significantly reduce mechanical properties flexibility ribbon, which lead a limited service life samples. On other hand, adhesive bonding is very interesting alternative, where above-mentioned are preserved, but there significant resistance. graphene-based show that, intended use these (i.e., detection changes moisture human body), usage possible, sufficiently reliable case degradation. In addition, response sensor quite high: 98% at relative 98%.