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SPECIFICATION:

1 Introduction

Carbon nanotubes (CNTs) describe a family of nanomaterials made up entirely of carbon. In this family, multi-walled carbon nanotubes (MWCNTs) are of special interest for the industry and will be the subject of this paper. Structurally MWCNTs consist of multiple layers of graphite superimposed and rolled in on themselves to form a tubular shape.

2 Improved Properties

Such cylindrical graphitic polymeric structures have novel or improved properties that make them potentially useful in a wide variety of applications in electronics, optics and other fields of materials science. Carbon nanotubes are endowed with exceptionally high material properties, very close to their theoretical limits, such as electrical and thermal conductivity, strength, stiffness, and toughness. Moreover, MWCNTs are polymers of pure carbon and can be reacted and manipulated using the rich chemistry of carbon. This provides opportunity to modify the structure and to optimise solubility and dispersion, allowing innovative applications in materials, electronics, chemical processing and energy management, to name just a few. In summary, three properties of MWCNTs are specifically interesting for the industry: the electrical conductivity (as conductive as copper), their mechanical strength (Up to 15 to 20 times stronger than steel and 5 times lighter) and their thermal conductivity (same as that of diamond and more than five times that of copper). A combination of these impressive properties enables a whole new variety of useful and beneficial applications.

3  Conclusion

Carbon nanotubes are endowed with exceptionally high material properties, very close to their theoretical limits. A combination of these impressive properties enables a whole new variety of useful and beneficial applications. Depending of the amount of R&D efforts necessary to bring a particular product to the market, it can be differentiated between short, mid and long-term applications. Current or short-term applications are often based on the use of MWCNTs as a superior replacement of electrically conductive carbon blacks. This is especially advantageous in the automotive and electronic industries. New structural composite materials based on CNT reinforced thermoplastics combine low density and strong mechanical properties. Currently almost every sports item on the market can be improved by using CNT. This will open the way to new developments in particular by replacing metals in various 5 Page 5 / 6 mechanical applications where a weight reduction could save energy, like in automotive industry. On the medium to long-term a wide range of industrial sectors may benefit from the use of CNT. Due to the nature of some of these industries, more technical testing and longer certification time will be required before a market entry is possible. Improved mechanical properties of epoxy–carbon fiber composites can be used for wind power generators and in the aircraft industry. From improved textiles to electrical conductive ink for printable circuits, the range of impacted industries is staggering.

Description:

Conceptually, the structure of a SWCNT is a one-atom-thick layer of graphite, called graphene, wrapped into a seamless cylinder with either open or closed ends. As their name implies, MWCNTs consist of multiple concentric layers of graphene that form a tube shape.

By themselves, CNTs can be metallic or semi-conducting, and are uniquely strong. The many applications for CNTs are based on their unique structure, although some can use either MWCNTs or SWCNTs. MWCNTs are used today in conducting polymers; for example, in electrostatic spray operations. Due to their unique features, SWCNT are required for some key electronic applications such as memory, semiconductor components and transparent conducting films for touch screens, displays, solar cells and other devices. These and other applications were highlighted in “Carbon Nanotubes:

Nanoshel Carbon Nanotubes, Graphene and Nanomaterials

Nanoshel sells purest and cheapest Carbon Nanotubes in the world. Selling in Ton quantities to various Industries from Coating and Plastic to Technology companies. Various Catalogue companies are buying CNTs from us in Ton and Kg quantities.

Carbon Nanotubes is produced by Chemical Vapor Deposition (CVD) method by Nanoshel and depending on the diameter one can obtain either single-walled Carbon Nanotubes(SWCNTs) or multi-walled Carbon Nanotubes (MWCNTs). Our current capacity for the production of MWCNTs far exceeds that of other suppliers.

List of relevant Nanomaterial’s for Industry and Researchers

1. Buy 99% pure Carbon Nanotubes (MWCNT), at an amazing price of US$100/Kg.

2. Buy 99% pure Multi walled Carbon Nanotubes in Ton quantities for Industrial use.

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8. Buy Shape Memory Polymer for advanced polymer applications in Killogram and Gram quantities.

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