Electrical Properties of Textiles Treated with Graphene Oxide Suspension

Abstract

Two-dimensional nanomaterials such as graphene can provide various functional properties to textiles, which have great potential in sportswear, healthcare etc. In this study, the properties of nylon and cotton-based electronic textiles coated with reduced graphene oxide are investigated. After reduction of graphene oxide coating in hydrazine vapor, e-textiles with a resistance of ~350 Ω/sq for nylon, and ~1 kΩ/sq for cotton were obtained. Cyclic mechanical bending tests of samples showed that the resistance increases during bending up to 10–20%. The use of bovine serum albumin as an adhesive layer improved the wash stability for samples with nylon up to 40 washing cycles. The use of BF-6 glue as a protective layer reduced changes in resistance during bending, and improved wash stability of cotton samples. It was shown that the resistance of the obtained samples is sensitive to changes in temperature and humidity. In addition, obtained e-textiles attached to a person’s wrist were able to measure heart rate. Thus, the obtained electronic textiles based on cotton and nylon coated with reduced graphene oxide demonstrates good characteristics for use as sensors for monitoring vital signs.

A Review of Electro Conductive Textiles Utilizing the Dip-Coating Technique: Their Functionality, Durability and Sustainability

“…As can be seen in Table 3 , numerous electro conductive textiles were recently fabricated by dip-coating and applying G and its derivates, namely: nylon fabric [ 37 , 38 , 39 ], Spandex yarn [ 36 , 40 ], cotton fabric/yarn [ 38 , 41 , 42 ] ( Figure 3 ), wool fabric [ 43 ], polyurethane yarn [ 44 ], etc. As reported by [ 40 ], conductivity increases exponentially with the dipping cycles due to the enlarged thickness of the deposited layers.…”

Fabrication of multifunctional cotton textile with battery waste- derived graphene oxide for enhanced joule heating and electromagnetic interference shielding

“…Most importantly, cotton fabric available in different configurations, size and shapes, and they are highly hydrophilic, thus it can be easily modifiable based on our specific needs. 27,28 Nevertheless, cotton, especially its surface, has a high surface roughness, so simply coating it with carbon material can cause discontinuities in its electrical resistance. To tackle this challenge, herein we use the graphene oxide prepared from spent battery, as primary conductive network/filler over cotton surface, and then the metal particles were deposited over GO-cotton to achieve excellent electro-conductive fabric material.…”