Structural Polymer-Based Carbon Nanotube Composite Fibers: Understanding the Processing–Structure–Performance Relationship
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Abstract:
Among the many potential applications of carbon nanotubes (CNT), its usage to strengthen polymers has been paid considerable attention due to the exceptional stiffness, excellent strength, and the low density of CNT. This has provided numerous opportunities for the invention of new material systems for applications requiring high strength and high modulus. Precise control over processing factors, including preserving intact CNT structure, uniform dispersion of CNT within the polymer matrix, effective filler–matrix interfacial interactions, and alignment/orientation of polymer chains/CNT, contribute to the composite fibers’ superior properties. For this reason, fabrication methods play an important role in determining the composite fibers’ microstructure and ultimate mechanical behavior. The current state-of-the-art polymer/CNT high-performance composite fibers, especially in regards to processing–structure–performance, are reviewed in this contribution. Future needs for material by design approaches for processing these nano-composite systems are also discussed.Keywords:
Specific strength
For these two decade, tremendous amount of researches and developments dealing with carbon nanotubes (CNTs) have been carried out. Most of them are focusing on finding the unique and outstanding properties of CNTs and trying to utilizing them as the advanced materials. Whenever we start the research and the development of CNTs, the first difficulty is the dispersion of CNTs into the solvents since the CNTs form strong aggregation. Up to date, large efforts have been carried out for the preparation of CNT dispersion and the typical strategies are summarized. Such a dispersion technique allows us to use CNT as a material. Several applications of the CNT dispersion is also introduced.
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ทอนาโนคารบอนมการศกษาอยางแพรหลาย เปนเพราะวาทอนาโนคารบอนเปนวสดนาโน โดยปกตแลวสมบตของวสดนาโนจะแตกตางจากวสดขนาดใหญ ทอนาโนคารบอนทสงเคราะหไดจะมเสนผานศนยกลางอยในชวงระหวาง 0.4–4 นาโนเมตร และมความยาวไดถง 10 ไมโครเมตร นอกจากนทอนาโนคารบอนสามารถแบงออกไดเปน 2 ลกษณะ คอ ทอนาโนคารบอนแบบทมผนงเดยวและทอนาโนคารบอนแบบทเปนผนงหลายชน การสงเคราะหทอนาโนคารบอนจงมไดหลายวธและแตละวธกใหสมบตของทอนาโนคารบอนทแตกตางกน ซงจะเปนประโยชนในการนำทอนาโนคารบอนมาประยกตใชในอนาคต คำสำคญ : ทอนาโนคารบอน ทอนาโนคารบอนแบบมผนงชนเดยว ทอนาโนคารบอนแบบทเปนผนงหลายชน ตวทำปฏกรยา Carbon nanotubes (CNTs) have been widely studied. This is because CNTs is the nanomaterials. Normally, the properties of nanomaterials are different from bulk materials. The diameter of CNTs is between 0.4–4 nm. and the length can be as long as 10 mm. In addition, there are two types of CNTs. They are single wall carbon nanotubes and multiwall carbon nanotubes, respectively. CNTs have been synthesized by variety methods and each method will provide the different properties of CNTs. These will be useful for future applications. Keywords: Carbon nanotubes, singlewall carbon nanotubes, multi wall carbon nanotubes, catalyst
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The limited availability of resources combined with increased material demands have resulted in the design and fabrication of advanced, effective materials of low weight and enhanced strength. Composites have proven to be the materials that satisfy the above-mentioned requirements. Composites comprising of polymer and metal matrices have exhibited exceptional strengths, toughness, lower weights, good resistance to corrosion, elevated stiffness, ability to absorb high energy and lower levels of thermal expansion. These spectrum of properties in composites have made them popular across diverse engineering fields like automotive, aerospace, marine, nuclear, as well as biomedical-related industries. The diversity in the engineering fields has created complicated demands and because of this, fabrication of advanced composite materials has turned out to be an important challenge. The fabrication method also influences the composite properties. Hence, it is essential to look into the various composite fabrication techniques. This current book chapter focuses of these fabrication techniques, which shall be a benefit to the researche of composites.
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Fabrication and characterisation of chemical vapour deposition grown branched carbon nanotube arrays
THESIS 8111%%%%The fabrication, optimisation and characterisation of arrays of straight and junction
multiwall carbon nanotubes (MWNTs) is presented in this thesis. A detailed description of
the design and fabrication of the chemical vapour deposition (CVD) system used for their
production is presented. Various carbon nanotube (CNT) geometries produced during the
optimisation of the CVD parameters, such as mats, vertically aligned forests and long
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Methods for the solubilization and dispersion of single-walled carbon nanotubes in water and organic solvents by physical and chemical methods have been reviewed.
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