Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 16, Pages 14944-14951Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b00715
Keywords
graphene oxide; screen printing; cross-linking; e-textile; textile sensors
Funding
- Dr. Gao's group in the Textile Engineering, Chemistry and Science Department at North Carolina State University
- Nantong University
- National Science Foundation
- State of North Carolina
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Graphene-based e-textiles have attracted great interest because of their promising applications in sensing, protection, and wearable electronics. Here, we report a scalable screen-printing process along with continuous pad-dry-cure treatment for the creation of durable graphene oxide (GO) patterns onto viscose nonwoven fabrics at controllable penetration depth. All the printed nonwovens show lower sheet resistances (1.2-6.8 k Omega/sq) at a comparable loading, as those reported in the literature, and good washfastness, which is attributed to the chemical cross-linking applied between reduced GO (rGO) flakes and viscose fibers. This is the first demonstration of tunable penetration depth of GO in textile matrices, wherein GO is also simultaneously converted to rGO and cross-linked with viscose fibers in our processes. We have further demonstrated the potential applications of these nonwoven fabrics as physical sensors for compression and bending.
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