Highly Stretchable Strain Sensors Using an Electrospun Polyurethane Nanofiber/Graphene Composite

Abstract

A highly flexible and stretchable strain sensor has been prepared by coating chemical reduction of graphene oxide on electrospun polyurethane nanofiber mats. The sensor exhibits an ohmic behavior regardless of applied strains and the current monotonically increases with the increase of the tensile strain. The morphology and stability of electrospun polyurethane nanocomposite mats were also studied. The flexible and stretchable strain sensor has great potential for practical application such as efficient human-motion detection. This cheap and simple process of graphene layer provides an effective fabrication for graphene stretchable electronic devices and strain sensors due to excellent stability and electrical proper.

Wireless controlling of a toy robot using silver nanowire coated spandex yarns

“…Conductive threads and fabrics can be produced using metallic nanowires [2–4], nanoparticles [5,6], carbon nanotubes [7], and graphene [8]. These conductive materials can be applied through several methods such as dip coating [2], wet spinning [9], chemical polymerization [10], chemical reduction [8,11], atomic layer deposition [12], and electroless metal deposition [13]. Among these methods dip coating is the simplest because it only requires dipping the textile material in a solution of conductive materials.…”

“…In this work we have employed silver nanowires (AgNWs) to create conductive spandex yarns. AgNWs can be synthesized by environmentally friendly polyol method which does not require strong acids such as used in reducing graphene oxide to graphene [8,11]. Previous studies demonstrate that AgNWs can be applied on cotton and Lycra® through a simple dip coating process.…”

Structure-Property Relationships in Graphene-Based Strain and Pressure Sensors for Potential Artificial Intelligence Applications

“…The 1D fibers are tortuous before the strain and pressure as shown in Figure 5a. In the loading state, the 1D fiber structure becomes unbent (Figure 5b) [157,158,159,160,161,162].…”

Silver nanowire coated knitted wool fabrics for wearable electronic applications

“…Graphene is another organic conductive material and has several unique properties due to its two-dimensional structure. Recently, graphene was dip-coated on a non-woven fabric to produce a flexible sensor 17 and coated with water soluble poly(vinyl alcohol) (PVA) to make a stretchable supercapacitor. 18 In both cases, strong acids were used to reduce graphene oxide to graphene, which is environmentally hazardous.…”