Enhanced conductive polymer nanocomposite by foam structure and polyelectrolyte encapsulated on carbon nanotubes

2016 ◽  
Vol 123 ◽  
pp. 106-114 ◽  
Author(s):  
Weixia Yang ◽  
Wei Zou ◽  
Zhongjie Du ◽  
Hangquan Li ◽  
Chen Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Conductive Polymer ◽  
Polymer Nanocomposite ◽  
Foam Structure

Highly Stretchable Conductive Polymer Composited with Carbon Nanotubes and Nanospheres

2010 ◽  
Vol 123-125 ◽  
pp. 109-112 ◽  
Author(s):  
Song Min Shang ◽  
Wei Zeng ◽  
Xiao Ming Tao
Keyword(s):  
Carbon Nanotubes ◽  
Nanocomposite Film ◽  
High Performance ◽  
Conductive Polymer ◽  
Polymer Nanocomposite ◽  
High Conductivity ◽  
Carbon Nanospheres ◽  
High Elasticity ◽  
Highly Stretchable ◽  
Application Potential

In recent decades, stretchable conductive polymers have gained extensive interest of researchers because of their hi-tech applications in electronics, textiles and medicine devices. In this study, carbon nanotubes and carbon nanospheres, as the chemically stable dopants, were uniformly dispersed in a polyurethane matrix to develop a highly elastic and stretchable conductive polymer composite film. The nanocomposite film inherited the advantageous properties from its constituents, namely the high conductivity from carbon nanotubes and nanospheres, and the elastomeric mechanical properties from the polyurethane. The conductive polymer nanocomposite film can be uniaxially and biaxially stretched up to 50% without clearly mechanical or electrical changes. Stretching beyond 50% would result in the conductivity decreasing gradually. Therefore, the as-prepared stretchable conductive polymer nanocomposites possessed both the high conductivity and the high elasticity, which would have greater application potential in high-performance electronic circuits.

Fatigue of a Nanocomposite Laminate

2008 ◽  
Author(s):  
Justin W. Wilkerson ◽  
Jiang Zhu ◽  
Daniel C. Davis
Keyword(s):  
Carbon Nanotubes ◽  
Polymer Nanocomposite ◽  
Weight Percent ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Carbon Fabric ◽  
Molding Process ◽  
Functionalized Carbon Nanotubes ◽  
Multi Scale ◽  
Reinforced Polymer

A multi-scale carbon fiber reinforced polymer nanocomposite laminate, with strategically incorporated fluorine functionalized carbon nanotubes at 0.2 weight percent, is studied for improvements in strength, stiffness and fatigue life under both tension-tension fatigue (R = +0.1) and tension-compression fatigue (R = −0.1) loading. The nanotubes were incorporated into the carbon fabric, and laminates were fabricated using a high temperature vacuum assisted resin transfer molding process. The influence of the fluorinated functionalized carbon nanotubes on the evolution of damage and the resistance to catastrophic failure is credited for these mechanical property improvements.

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

THE PROSPECTS OF USING CARBON NANOTUBES TO IMPART FUNCTIONAL PROPERTIES TO THE SURFACE OF POLYMER MATERIALS (review)

2021 ◽  
pp. 11-21
Author(s):  
L.V. Solovyanchik ◽  
◽  
S.V. Kondrashov ◽  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties ◽  
Functional Properties ◽  
Scientific Literature ◽  
Conductive Polymer ◽  
Polymer Materials ◽  
Mechanism Of Formation ◽  
Electrically Conductive ◽  
Structured Surface

Presents a review of the scientific literature on various methods for producing electrically conductive polymer materials and coatings. The prospects of using carbon nanotubes (CNT) to impart high electrical properties to the surface of materials are shown. The mechanism of formation of the structured surface of polymer materials with CNT is described. It is shown that the use of CNT is a promising way to impart electrically conductive and superhydrophobic properties to the surface.

A Stable Thin Film from Soluble Single-Walled Carbon Nanotubes on ITO

2011 ◽  
Vol 287-290 ◽  
pp. 2443-2446
Author(s):  
Su Min Wang ◽  
Qi Guan Wang ◽  
Jian Ping Li ◽  
Hiroshi Moriyama ◽  
Wei Xing Chen
Keyword(s):  
Carbon Nanotubes ◽  
Redox Reactions ◽  
Conductive Polymer ◽  
Stable State ◽  
Single Walled Carbon Nanotubes ◽  
Organic Media ◽  
Covalent Bonds ◽  
Single Walled Carbon ◽  
Reversible Redox ◽  
Walled Carbon Nanotubes

Thin films of single-walled carbon nanotubes (SWNTs) attached to an ITO surface (SAM–ITO) self-assembled in advance from 3-aminopropyltrimethoxysilane through amide covalent bonds were prepared. The SWNTs were safely obtained via a two-step process assisted by microwave radiation, which were soluble in aqueous and organic media. However, the CV behavior of SAM–ITO in acidic aqueous systems showed unexpected oxidation signals due to redox reactions involving the defects and sidewalls of soluble functionalized SWNTs. It was found that, after a conductive polymer of polyaniline was chemically incorporated onto the surface of the SWNTs by using electropolymerization method, the CV data showed a single reversible redox couple, which indicated a more stable state.

Solution-processable flexible thermoelectric composite films based on conductive polymer/SnSe0.8S0.2 nanosheets/carbon nanotubes for wearable electronic applications

2018 ◽  
Vol 6 (14) ◽  
pp. 5627-5634 ◽  
Author(s):  
Hyun Ju ◽  
Dabin Park ◽  
Jooheon Kim
Keyword(s):  
Carbon Nanotubes ◽  
Thermoelectric Power ◽  
Power Factor ◽  
Composite Films ◽  
Conductive Polymer ◽  
Solution Processing ◽  
Thermoelectric Power Factor ◽  
Processing Procedure ◽  
Wearable Electronic ◽  
Flexible Thermoelectric

Flexible thermoelectric composite films with a high thermoelectric power factor are achieved via a solution processing procedure.

Effect of Functionalized MWCNT on the Mechanical and Dielectric Properties of PMMA Nanocomposites

2018 ◽  
Vol 18 (06) ◽  
pp. 1850035
Author(s):  
Punyapriya Mishra ◽  
Narasingh Deep ◽  
Sagarika Pradhan ◽  
Vikram G. Kamble
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Dielectric Constant ◽  
Tensile Strength ◽  
Electron Microscope ◽  
Dielectric Properties ◽  
Conductive Polymer ◽  
Mechanical Tests ◽  
Surface Structures ◽  
Scanning Electron

Carbon nanotubes (CNTs) are widely explained in fundamental blocks of nanotechnology. These CNTs exhibit much greater tensile strength than steel, even almost similar to copper, but they have higher ability to carry much higher currents, they seem to be a magical material with all these mentioned properties. In this paper, an attempt has been made to incorporate this wonder material, CNT, (with varying percentages) in polymeric matrix (Poly methyl methacrylate (PMMA)) to create a new conductive polymer composite. Various mechanical tests were carried out to evaluate its mechanical properties. The dielectric properties such as dielectric loss and dielectric constant were evaluated with the reference of temperature and frequency. The surface structures were analyzed by Scanning Electron Microscope (SEM).

A closed-form model for estimating the effective thermal conductivities of carbon nanotube–polymer nanocomposites

2018 ◽  
Vol 233 (8) ◽  
pp. 2909-2919 ◽  
Author(s):  
Reza Moheimani ◽  
M Hasansade
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Closed Form ◽  
Polymer Nanocomposites ◽  
Micromechanical Model ◽  
Polymer Nanocomposite ◽  
Interfacial Thermal Resistance ◽  
Full Potential ◽  
Thermal Conductivities

This paper describes a closed-form unit cell micromechanical model for estimating the effective thermal conductivities of unidirectional carbon nanotube reinforced polymer nanocomposites. The model incorporates the typically observed misalignment and curvature of carbon nanotubes into the polymer nanocomposites. Also, the interfacial thermal resistance between the carbon nanotube and the polymer matrix is considered in the nanocomposite simulation. The micromechanics model is seen to produce reasonable agreement with available experimental data for the effective thermal conductivities of polymer nanocomposites reinforced with different carbon nanotube volume fractions. The results indicate that the thermal conductivities are strongly dependent on the waviness wherein, even a slight change in the carbon nanotube curvature can induce a prominent change in the polymer nanocomposite thermal conducting behavior. In general, the carbon nanotube curvature improves the nanocomposite thermal conductivity in the transverse direction. However, using the straight carbon nanotubes leads to maximum levels of axial thermal conductivities. With the increase in carbon nanotube diameter, an enhancement in nanocomposite transverse thermal conductivity is observed. Also, the results of micromechanical simulation show that it is necessary to form a perfectly bonded interface if the full potential of carbon nanotube reinforcement is to be realized.

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