A review of fundamental principles and applications of polymer nanocomposites filled with both nanoclay and nano-sized carbon allotropes – Graphene and carbon nanotubes

2019 ◽  
Vol 36 (2) ◽  
pp. 209-228 ◽  
Author(s):  
Ayesha Kausar
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Research Field ◽  
Self Healing ◽  
Polymeric Nanocomposites ◽  
Carbon Allotropes ◽  
Characteristic Features ◽  
Primary Focus ◽  
New Processing ◽  
Processing Techniques

Advancements in polymer/nanoclay nanocomposites have supported the development of distinctive preparation strategies and characteristic features. High-performance polymer/nanoclay nanocomposites have applications in aerospace, automotive, construction, environmental, and biomedicine. To further improve polymer/nanoclay nanocomposite performance, nanoclay nanobifillers have been considered. In this regard, nano-sized carbon allotropes are potential contenders to form nanoclay nanobifillers. This article presents a detailed and state-of-the-art review on polymer/nanoclay nanobifiller nanocomposites. The primary focus of this pioneering effort is to deliver an up-to-date overview on polymer/nanoclay nanobifiller nanocomposites along with their categorization, fabrication, properties, and uses. Nanoclay nanobifiller designs using carbon nanotube, graphene, and fullerene are considered. Consequently, ensuing nanocomposite categories are discussed including polymer/nanoclay-carbon nanotube, polymer/nanoclay-graphene, and polymer/nanoclay-fullerene nanocomposites. The dispersion properties and alignment of nanoclay nanobifiller in polymeric nanocomposites have been investigated. Enhancing the interfacial bonding strength between matrix and nanoclay nanobifiller enhances the resulting nanocomposite physical properties. Application areas for polymer/nanoclay nanobifiller nanocomposites include supercapacitors, non-flammable materials, and self-healing materials. The discussion also highlights potential future directions for this emerging research field. Forthcoming advancements in polymer/nanoclay nanobifiller nanocomposites must focus the intensive design control, nanobifiller functionality, new processing techniques, superior dispersion, and enhanced features to further broaden the application prospects of these materials.

Review of Fabrication Methods of Nanotube / Nanowire Devices

2011 ◽  
Vol 411 ◽  
pp. 427-431 ◽  
Author(s):  
Miao Miao Tan ◽  
Zi Yi Zhang ◽  
Lin Hui Zhao ◽  
Jian Cheng Zhang
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Chemical Properties ◽  
Research Field ◽  
Nano Materials ◽  
One Dimensional ◽  
Nano Fabrication ◽  
Nano Structures ◽  
Manufacturing Methods ◽  
And Chemical Properties

With the development of nano materials, a novel research field of NEMS forms by combining nano materials, nano-structures and nano fabrication with MEMS. Carbon nanotube (CNT) is a kind of one-dimensional nano structures which has unique mechanical, electrical and chemical properties. Using CNTs, new nano-devices with new principle or high performance would be developed. This paper reviews the assembly methods of one dimensional nanostructure and analyzes the characteristics of various methods, which provides reference for the device manufacturing methods using nanotubes/nanowires.

Approaches to the Design and Processing of Novel Titanium Alloys

2007 ◽  
Vol 29-30 ◽  
pp. 127-130
Author(s):  
Colleen J. Bettles ◽  
Rimma Lapovok ◽  
H.P. Ng ◽  
Dacian Tomus ◽  
Barry C. Muddle
Keyword(s):  
Titanium Alloys ◽  
High Performance ◽  
Powder Processing ◽  
Low Cost ◽  
Cost Effective ◽  
Processing Technologies ◽  
Shape Processing ◽  
New Processing ◽  
The Cost ◽  
Processing Techniques

The range of commercial titanium alloys available is currently extremely restricted, with one alloy (Ti-6Al-4V), and derivatives of it, accounting for a very large proportion of all applications. High performance alloys are costly to fabricate and limited to low-volume applications that can sustain the cost. With the emergence of new processing technologies that promise to reduce significantly the cost of production of titanium metal, especially in powder form, there is an emerging imperative for cost-effective near net shape powder processing techniques to permit the benefit of reduced metal cost to be passed on to higher-volume applications. Equally, there is a need for the design and development of new alloys that are intrinsically low-cost and lend themselves to fabrication by novel cost-effective net shape processing. The approaches that might be used to select, design and process both conventional alloys and novel alloy systems will be reviewed, with a focus on innovation in design of low-cost alloys amenable to new processing paths and increasingly tolerant of variability in composition.

Theoretical Prediction and Experimental Study of Mechanical Properties for Random and Magnetically Aligned Single-Walled Carbon Nanotube/Epoxy Composites

2003 ◽  
Vol 791 ◽  
Author(s):  
Ben Wang ◽  
Ravi Shankar ◽  
Zhiyong Liang ◽  
Zhi Wang ◽  
Chuck Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
High Performance ◽  
Experimental Results ◽  
Reinforced Composites ◽  
Polymeric Nanocomposites ◽  
Single Walled Carbon ◽  
Theoretical Predictions ◽  
Walled Carbon Nanotubes ◽  
Magnetically Aligned

ABSTRACTSingle-walled carbon nanotubes (SWNTs) have exceptional mechanical and functional properties. Many researchers consider SWNTs as the most promising reinforcement for realizing the optimal structural and multifunctional potential of the next generation of high performance nanocomposites. However, due to poor dispersion, weak interfacial bonding and deficient tube orientation, current nanotube-based nanocomposites fail to realize their anticipated properties. A new approach was developed by the authors to use preformed nanotube tube networks (called buckypapers) and a resin infiltration method for producing bulk polymeric nanocomposites with controlled nanostructure and high tube loading. Desired tube alignment in nanocomposites can be achieved by using magnetically aligned carbon nanotube buckypapers, in which SWNTs will tend to align along the direction of applied magnetic field. The mechanical properties of the resultant nanocomposites have been tested. The storage modulus of the magnetically aligned nanocomposites is as high as 47 GPa, which is one of the highest reported values of nanotube-reinforced composites.In this research, we investigated the influences of tube dispersion, loading and orientation on the mechanical properties of SWNT-reinforced composites. Random and aligned discontinuous reinforcement models of composites were applied to predict the tensile moduli of both individually dispersed SWNT-based and SWNT rope-based nanocomposites. The nanostructural parameters used in the calculation models were determined based on our experimental observations. Comparisons between theoretical estimates and experimental results have shown that the formation of SWNT ropes in the composites has a significant influence on the mechanical properties. The experimental results of the both random and aligned SWNT rope composites are in good agreement with the theoretical predictions.

scholarly journals Polymer Nanocomposites of Selenium Biofabricated Using Fungi

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3657
Author(s):  
Olga Tsivileva ◽  
Alexander Pozdnyakov ◽  
Anastasiya Ivanova
Keyword(s):  
High Performance ◽  
Polymeric Nanocomposites ◽  
Reinforced Polymer ◽  
Beta Glucans ◽  
Low Toxicity ◽  
Characteristic Features ◽  
The Impact ◽  
High Bioavailability ◽  
Biocomposite Material ◽  
Reaction Level

Nanoparticle-reinforced polymer-based materials effectively combine the functional properties of polymers and unique characteristic features of NPs. Biopolymers have attained great attention, with perspective multifunctional and high-performance nanocomposites exhibiting a low environmental impact with unique properties, being abundantly available, renewable, and eco-friendly. Nanocomposites of biopolymers are termed green biocomposites. Different biocomposites are reported with numerous inorganic nanofillers, which include selenium. Selenium is a micronutrient that can potentially be used in the prevention and treatment of diseases and has been extensively studied for its biological activity. SeNPs have attracted increasing attention due to their high bioavailability, low toxicity, and novel therapeutic properties. One of the best routes to take advantage of SeNPs’ properties is by mixing these NPs with polymers to obtain nanocomposites with functionalities associated with the NPs together with the main characteristics of the polymer matrix. These nanocomposite materials have markedly improved properties achieved at low SeNP concentrations. Composites based on polysaccharides, including fungal beta-glucans, are bioactive, biocompatible, biodegradable, and have exhibited an innovative potential. Mushrooms meet certain obvious requirements for the green entity applied to the SeNP manufacturing. Fungal-matrixed selenium nanoparticles are a new promising biocomposite material. This review aims to give a summary of what is known by now about the mycosynthesized selenium polymeric nanocomposites with the impact on fungal-assisted manufactured ones, the mechanisms of the involved processes at the chemical reaction level, and problems and challenges posed in this area.

Healing by the Joule effect of electrically conductive poly(ester-urethane)/carbon nanotube nanocomposites

2016 ◽  
Vol 4 (11) ◽  
pp. 4089-4097 ◽  
Author(s):  
B. Willocq ◽  
R. K. Bose ◽  
F. Khelifa ◽  
S. J. Garcia ◽  
Ph. Dubois ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Self Healing ◽  
Electrically Conductive ◽  
Joule Effect

Recent demands for polymers with autonomous self-healing properties are being constantly raised due to the need for high-performance and reliable materials.

Effect of Magnetic Field Treatment on Dielectric Properties of LDPE Composites with Carbon Nanotube and Nanographite

2013 ◽  
Vol 873 ◽  
pp. 436-440
Author(s):  
Bao Zhong Han ◽  
Wei Zhou ◽  
Chang Lin Liu ◽  
Dan Liu ◽  
Xiang Wang
Keyword(s):  
Magnetic Field ◽  
Carbon Nanotube ◽  
External Magnetic Field ◽  
High Performance ◽  
Electrical Conductance ◽  
Research Field ◽  
Magnetic Field Direction ◽  
Field Development ◽  
Magnetic Field Treatment ◽  
The Magnetic Field

Magnetic phenomenon is one of the most fundamental phenomena of substances. All substances possess strong or weak magnetic property, and have different responds to external magnetic field. Development of high performance materials by using external magnetic field is an important research field of material science. In this study, a static magnetic field is applied during thermoforming processing of low density polyethylene (LDPE)/carbon nanotube (CNT), LDPE/nanographite composites. The effect of magnetic field treatment on dielectric property of these composites is investigated. Experimental results indicate that CNT and nanographite orientate in melted LDPE under the magnetic field. The electrical conductance, the dielectric constant and the dielectric loss angular tangent value of LDPE/CNT and LDPE/ nanographite composites along the magnetic field direction all increase.

HIGH PERFORMANCE MULTI-INSULATOR CARBON NANOTUBE TUNNEL DIODE ARRAYS

2018 ◽  
Author(s):  
Erik C. Anderson ◽  
Thomas L. Bougher ◽  
Baratunde A. Cola
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Tunnel Diode
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