Pressure and microwave sensors/actuators based on smart hydrogel/conductive polymer nanocomposite

2014 ◽  
Vol 190 ◽  
pp. 270-278 ◽  
Author(s):  
Rebeca E. Rivero ◽  
María A. Molina ◽  
Claudia R. Rivarola ◽  
Cesar A. Barbero
Keyword(s):  
Conductive Polymer ◽  
Polymer Nanocomposite ◽  
Smart Hydrogel ◽  
Microwave Sensors

Thermo- and chemo-electrical behavior of carbon nanotube filled co-continuous conductive polymer nanocomposites (CPC) to develop amperometric sensors

2008 ◽  
Vol 1143 ◽  
Author(s):  
Jianbo Lu ◽  
Mickaël Castro ◽  
Bijandra Kumar ◽  
Jean-François Feller
Keyword(s):  
Temperature Sensor ◽  
Conductive Polymer ◽  
Multiwall Carbon Nanotubes ◽  
Polymer Nanocomposite ◽  
Melt Mixing ◽  
Conductive Phase ◽  
Polyamide 12 ◽  
Barrier Effects ◽  
Vapor Sensing ◽  
Mixing Method

ABSTRACTThe conductive polymer nanocomposite (CPC) of multiwall carbon nanotubes (MWNT) filled Polycaprolactone (PCL) was formulated by melt mixing method. PCL based conductive phase served as disperse phase, blended with polypropylene (PP) and polyamide 12 (PA12) respectively. The thermo- and chemo-electrical properties of mono- and bi-component CPC have been investigated independently. Results show that PP/PCL-CNT CPC is a good temperature sensor whereas no significant response was observed while exposing to toluene vapor. In contrast, PA12/PCL-CNT exhibits good vapor sensing capability instead of temperature sensor. It is assumed that PP phase prevents the diffusion of vapor molecules within PCL conductive phase. The vapor sensing results indicated that PP external matrix provides the CPC with higher barrier effects than PA12.

A Modified Fractional Calculus Approach to Model Hysteresis

2010 ◽  
Vol 77 (3) ◽  
Author(s):  
Mohammed Rabius Sunny ◽  
Rakesh K. Kapania ◽  
Ronald D. Moffitt ◽  
Amitabh Mishra ◽  
Nakhiah Goulbourne
Keyword(s):  
Experimental Data ◽  
Fractional Calculus ◽  
Fractional Derivative ◽  
Fractional Integral ◽  
Conductive Polymer ◽  
Polymer Nanocomposite ◽  
Hysteretic Behavior ◽  
Integral Model ◽  
Strain Variation ◽  
Integer Order

This paper describes the development of a fractional calculus approach to model the hysteretic behavior shown by the variation in electrical resistances with strain in conductive polymers. Experiments have been carried out on a conductive polymer nanocomposite sample to study its resistance-strain variation under strain varying with time in a triangular manner. A combined fractional derivative and integer order integral model and a fractional integral model (with two submodels) have been developed to simulate this behavior. The efficiency of these models has been discussed by comparing the results, obtained using these models, with the experimental data. It has been shown that by using only a few parameters, the hysteretic behavior of such materials can be modeled using the fractional calculus with some modifications.

Physicoelectrochemical properties of facilely electrosynthesized reduced graphene oxide/p-type conductive polymer nanocomposite film

2016 ◽  
Vol 40 (3) ◽  
pp. 2565-2573 ◽  
Author(s):  
Maryam Naseri ◽  
Lida Fotouhi ◽  
Ali Ehsani ◽  
Ferydon Babaei
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Methanol Oxidation ◽  
Modified Electrode ◽  
Nanocomposite Film ◽  
Conductive Polymer ◽  
Polymer Nanocomposite ◽  
Reduced Graphene ◽  
Good Uniformity ◽  
P Type

As electro-active electrodes, composites of reduced graphene oxide and poly ortho aminophenol (POAP) with good uniformity are prepared by electropolymerization. In comparison with Ni-POAP, the Ni-rGO/POAP-modified electrode shows a higher response for methanol oxidation.

Rapid synthesis of flexible conductive polymer nanocomposite films

2015 ◽  
Vol 26 (12) ◽  
pp. 125601 ◽  
Author(s):  
C O Blattmann ◽  
G A Sotiriou ◽  
S E Pratsinis
Keyword(s):  
Conductive Polymer ◽  
Polymer Nanocomposite ◽  
Nanocomposite Films ◽  
Rapid Synthesis

Modeling of Toluene Diffusion and Swelling Behavior in EEA-CNP Conductive Polymer NanoComposite (CPC)

2008 ◽  
Vol 1143 ◽  
Author(s):  
Sylvain Thevenot ◽  
P. Salagnac ◽  
P. Glouannec ◽  
Jean-François Feller
Keyword(s):  
Mass Measurement ◽  
Electrical Response ◽  
Conductive Polymer ◽  
Thick Layer ◽  
Polymer Nanocomposite ◽  
Ethyl Acrylate ◽  
Electrically Conductive ◽  
Physical Mechanisms ◽  
Poly Ethylene ◽  
Diffusion Behaviour

ABSTRACTElectrically Conductive Polymer nanocomposites have attracted lots of attention in the last years, especially for their sensitivities to external solicitations, like temperature or pressure variation. This work concerns the modelling of toluene diffusion behaviour in poly(ethylene-co-ethyl acrylate) (EEA)-carbon nanoparticles (CNP) CPC. One of the main objective of our work was to control and model the physical mechanisms involved in this type of material during sorption and desorption phases in the presence of solvent vapour. Two approaches was explore, thin layer to study quick electrical response and thick layer to look after swelling effect induces by toluene. The thick layer mass measurement was compare with our diffusion model.

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