Conductive Rubber Nanocomposites as Tensile and Pressure Sensors

2012 ◽  
Vol 217-219 ◽  
pp. 130-133 ◽  
Author(s):  
You Hong Tang ◽  
Nikolai Witt ◽  
Lin Ye
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Synergistic Effects ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Potential Applications ◽  
Milling Method ◽  
Rubber Nanocomposites ◽  
Conductive Silicone Rubber ◽  
Very High

A conductive silicone rubber (SR) composite, filled with both carbon nanotubes (CNT) and carbon black (CB) is prepared by a simple ball milling method. Because of the good dispersion and synergistic effects of CNT and CB, the SR composite shows improvement in mechanical properties. As well, due to the assembly of conductive pathways generated by the CNT and CB, the nanocomposite becomes highly conductive at a comparatively low concentration, with very high sensitivity for tensile and compressive stress. These outstanding properties show that the SR composite has potential applications in tensile and pressure sensors.

scholarly journals Synergistic effects of halloysite and carbon nanotubes (HNTs + CNTs) on the mechanical properties of epoxy nanocomposites

2019 ◽  
Vol 6 (6) ◽  
pp. 900-910 ◽  
Author(s):  
Mohd Shahneel Saharudin ◽  
◽  
Rasheed Atif ◽  
Syafawati Hasbi ◽  
Muhammad Naguib Ahmad Nazri ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Synergistic Effects ◽  
Epoxy Nanocomposites

scholarly journals Self-assembled nanocapsules in water: a molecular mechanistic study

2017 ◽  
Vol 19 (31) ◽  
pp. 20377-20382
Author(s):  
Hang Xiao ◽  
Xiaoyang Shi ◽  
Xi Chen
Keyword(s):  
Carbon Nanotubes ◽  
Drug Delivery ◽  
Internal Pressure ◽  
Mechanistic Study ◽  
Potential Applications ◽  
Self Assembled ◽  
High Internal Pressure ◽  
Very High

One-end-open carbon nanotubes with an appropriate radius difference can coaxially self-assemble into a nanocapsule with very high internal pressure (on the order of 1 GPa), underpinning potential applications in nano-reactors, drug-delivery, etc.

Multifunctional Elastomer Nanocomposites based on EPDM and Carbon Nanotubes

2008 ◽  
Vol 1143 ◽  
Author(s):  
Paola Ciselli ◽  
Lan Lu ◽  
James JC Busfield ◽  
Ton Peijs
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Linear Relation ◽  
Pressure Sensors ◽  
Ethylene Propylene Diene Monomer ◽  
Electrical Behavior ◽  
Ethylene Propylene ◽  
Multi Wall Carbon Nanotubes ◽  
Sensor Applications ◽  
Elastomeric Composites

ABSTRACTElastomeric composites based on Ethylene-Propylene-Diene-Monomer (EPDM) filled with multi-wall carbon nanotubes (MWNTs) have been prepared, showing improved mechanical properties as compared to the pure EPDM matrix. The results have been discussed using the Guth model. The main focus of the study was on the electrical behavior of the nanocomposites, in view of possible sensor applications. A linear relation has been found between conductivity and deformations up to 10% strain, which means that such materials could be used for applications such as strain or pressure sensors. Cyclic experiments were conducted to establish whether the linear relation was reversible, which is an important requirement for sensor materials.

scholarly journals Carbon Nanotube and Graphene Based Polyamide Electrospun Nanocomposites: A Review

2016 ◽  
Vol 2016 ◽  
pp. 1-16 ◽  
Author(s):  
Fabiola Navarro-Pardo ◽  
Ana L. Martinez-Hernandez ◽  
Carlos Velasco-Santos
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Research Groups ◽  
Potential Applications ◽  
Versatile Technique

Electrospinning is a unique and versatile technique to produce nanofibres; the facility to incorporate fillers has expanded its range of applications. This review gives a brief description of the process and the different polymers employed for obtaining nanofibres. Owing to the ability of fibrillation of polyamides, these polymers have resulted in a wide variety of interesting results obtained when using this technique; therefore these features are summarised. Additionally, because of the feasibility of incorporating carbon nanotubes and graphene in these nanofibres and the growing interest on these nanomaterials, this review focuses in the most common methods employed for their incorporation in electrospun polyamides. Several equipment setups used for the electrospinning of the nanofibres are explained. The outstanding electrical, optical, crystallinity, and mechanical properties obtained by a number of research groups are discussed. The potential applications of the resulting nanocomposites have also been explored.

Ceramic and Glass Matrix Composites Containing Carbon Nanotubes

2008 ◽  
Vol 606 ◽  
pp. 61-77 ◽  
Author(s):  
Johann Cho ◽  
Aldo Roberto Boccaccini
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Glass Matrix ◽  
Polymer Matrix Composites ◽  
Matrix Composites ◽  
Potential Applications ◽  
Comprehensive Comparison ◽  
Key Issues ◽  
Glass Matrix Composites ◽  
Processing Techniques

Carbon nanotubes (CNTs) are promising reinforcing elements for structural composites due to their remarkable mechanical properties. The impressive electrical and thermal properties of this new form of carbon also make CNTs containing composites ideal candidates for multifunctional applications. In the past decade, researchers have investigated CNTs as toughening inclusions to overcome the intrinsic brittleness of ceramics and glasses. Although there are numerous investigations available in the literature, a significant progress has not occurred or it has been rather slow compared to advances in the field of CNT/polymer matrix composites. This paper reviews current trends in research and development efforts on the use of CNTs for fabrication of ceramic and glass matrix composite materials. The review includes a summary of key issues related to the optimisation of CNT-based composites and an overview of investigations dealing with processing techniques developed to optimise dispersion quality, interfaces and density. The mechanical properties of as-produced composites are discussed and a comprehensive comparison of data available for different matrix materials is presented. Finally, the potential applications of the resulting CNT/inorganic matrix composites and the scope for future developments in the field are highlighted.

scholarly journals Sea urchin-like microstructure pressure sensors with an ultra-broad range and high sensitivity

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiu-man Wang ◽  
Lu-qi Tao ◽  
Min Yuan ◽  
Ze-ping Wang ◽  
Jiabing Yu ◽  
...  
Keyword(s):  
Sea Urchin ◽  
Pressure Sensor ◽  
Pressure Range ◽  
Synergistic Effects ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Fast Response ◽  
Carbon Layer ◽  
Single Structure ◽  
Wide Pressure Range

AbstractSensitivity and pressure range are two significant parameters of pressure sensors. Existing pressure sensors have difficulty achieving both high sensitivity and a wide pressure range. Therefore, we propose a new pressure sensor with a ternary nanocomposite Fe2O3/C@SnO2. The sea urchin-like Fe2O3 structure promotes signal transduction and protects Fe2O3 needles from mechanical breaking, while the acetylene carbon black improves the conductivity of Fe2O3. Moreover, one part of the SnO2 nanoparticles adheres to the surfaces of Fe2O3 needles and forms Fe2O3/SnO2 heterostructures, while its other part disperses into the carbon layer to form SnO2@C structure. Collectively, the synergistic effects of the three structures (Fe2O3/C, Fe2O3/SnO2 and SnO2@C) improves on the limited pressure response range of a single structure. The experimental results demonstrate that the Fe2O3/C@SnO2 pressure sensor exhibits high sensitivity (680 kPa−1), fast response (10 ms), broad range (up to 150 kPa), and good reproducibility (over 3500 cycles under a pressure of 110 kPa), implying that the new pressure sensor has wide application prospects especially in wearable electronic devices and health monitoring.

scholarly journals Synergistic effects of carbon nanotubes on the mechanical properties of basalt and carbon fiber-reinforced polyamide 6 hybrid composites

2017 ◽  
Vol 31 (4) ◽  
pp. 553-571 ◽  
Author(s):  
József Szakács ◽  
László Mészáros
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Tensile Properties ◽  
Hybrid Composites ◽  
Synergistic Effects ◽  
Residual Deformation ◽  
Polyamide 6 ◽  
Load Level ◽  
Melt Compounding ◽  
The Matrix

In this study, a new type of carbon nanotube (CNT) and micro fiber (carbon or basalt)-reinforced polyamide 6 hybrid composites were prepared and investigated. Hybrid composites were produced by melt compounding, and specimens were injection molded. Thanks to the proper dispersion of CNT, a remarkable increment in tensile properties was exhibited. The scanning electron microscopy of the fracture surfaces of the tensile-tested materials revealed that during composite preparation the presence of the fibers in the melt facilitated a better dispersion of the CNT, which explains the enhancement in the tensile properties. The deformation components of the materials were also examined at different load levels. The presence of carbon nanotubes decreased residual deformation at every applied load level. Protruding fiber length investigation revealed that improved mechanical properties are not related to fiber-matrix adhesion but to the reinforcing and stress homogenization effect of nanotubes in the matrix.

scholarly journals Hybrid Nanocarbons Reinforced Rubber Nanocomposites: Detailed insights about Mechanical, Dynamical Mechanical Properties, Payne and Mullin Effects

2018 ◽  
Author(s):  
Suneel Kumar Srivastava ◽  
Yogendra Kumar Mishra
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Young Modulus ◽  
Expanded Graphite ◽  
Dynamic Mechanical Properties ◽  
Multiwalled Carbon ◽  
Elongation At Break ◽  
Hybrid Fillers ◽  
Rubber Nanocomposites ◽  
Walled Carbon Nanotubes

The reinforcing ability of the fillers results in significant improvements in properties of polymer matrix at extremely low filler loadings compared to conventional fillers. In view of this, present review article describes the different methods used in preparation of different rubber nanocomposites reinforced with nanodimensional individual carbonaceous fillers, such as graphene, expanded graphite, single walled carbon nanotubes, multiwalled carbon nanotubes and graphite oxide, graphene oxide and hybrid fillers consisting combination of individual fillers. This is followed by review of mechanical properties (tensile strength, elongation at break, Young modulus, and fracture toughness) and dynamic mechanical properties (glass transition temperature, crystallization temperature, melting point) of these rubber nanocomposites. Finally, Payne and Mullin Effects have also been reviewed in rubber filled with different carbon based nanofillers.

Development of Rubber Nanocomposites for Engineering Application

2016 ◽  
Vol 852 ◽  
pp. 61-65
Author(s):  
Paulraj Jawahar ◽  
Parthasarathy Kartheeswaran
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Natural Rubber ◽  
Engineering Application ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon Nanotube ◽  
Wide Range ◽  
Rubber Nanocomposites ◽  
Multiwall Carbon

Rubber finds wide range of application in automotive sector starting from tires to rubber bushes. Incorporation of nanoparticles like carbon nanotubes to rubber has improved the mechanical properties significantly. Still dispersion of carbon nanotube in raw rubber is a challenging process. In this work multiwall carbon nanotubes (MWCNT) are dispersed in the varying proportions (0.5, 1, 1.5 wt.%) in high viscous aromatic rubber processing oil using high shear planetary ball mill for a period of 2 hours. Then the rubber nanocomposites have been processed in double roll mill by adding the chemicals in the following order (Natural Rubber, Antioxidant: 1 phr, Oil: 5 phr, Zinc Oxide: 4 phr, Stearic Acid: 2 phr, Accelerator: 1 phr, Sulfur: 2 phr). It was found that, the incorporation of Multiwall carbon nanotube (MWCNT) has improved the mechanical properties of natural rubber significantly. Din abrasion studies show improvement in wear resistance of natural rubber incorporated with multiwall carbon nanotube.

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