Expected performance fibers prepared graphene Regulation
With the popularity of mobile intelligent terminals with flexible and rapid development of wearable electronic devices, flexible sensors become the focus of attention. However, to realize the flexible wearable electronic sensor of high resolution, high sensitivity, fast response, low cost and complexity of signal detection is still a big challenge. Submicron or nanoscale conductive fibers are expected to be flexible wearable electronic sensors to provide a simple and easy to control the resistance monitoring solutions. Provincial Natural Science Foundation of Outstanding Youth Project \”regulation of the use of graphene polymer solution rheological behavior of the electrospinning process\” to settle the question by the end of the acceptance. According to reports, the graphene (Graphene) having projecting electrical properties, thermal conductivity, large specific surface area and the light-transmitting characteristics, having a wide application prospect in the field of electronics, information, energy and materials. Electrospinning is a simple and flexible technique for preparing submicron or nanoscale fibers, widely used in biomedical engineering, wound coating, separation filters and chemical sensors. Researchers rheological establishing nanoparticle adsorption layer structure – Calorimetry – Dielectric Spectroscopy combined detection methods and other techniques, a polymer nanocomposite percolation mechanism, rheology linear time – and other aspects of the superposition principle to obtain a concentration series breakthrough. Under the guidance of theory, for the first time by particle – polymer interface layer to achieve viscosity build up to four orders of magnitude change in the composite liquid – solid transition regulation, for the first time found that \”congestion – go traffic jam\” reversible phase particles on rheological behavior change wherein, based on particle Sticky elastic regulation principle and structure principle developed with oil, dye adsorption, the graphene airgel material superelastic properties and other functions. Importantly, the present study found a unique phenomenon nanoparticles visbreaking guided by the theory, the disclosed principles and conditions for viscosity reduction phenomenon, whereby can be very small (0.01%) have significantly expanded graphene nanoparticles polymer nanofiber electrospinning concentration range.