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Carbon Nanotubes (CNT) Composites ©

2 Notes ©

Patentpedia Index 

3/10/2016 through 6/4/2013

1 Patent Abstracts

35 Patent Titles

2 Topics

0 Subtopics

2 Notes

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2 Topics

Carbon Nanotubes (CNT)   (1 Topics) (0 Subtopics) (3 Notes )   (41 Patent Titles )   (3 Patent Abstracts ) (3/8/2016)

Nanocomposites (NC)   (1 Topics) (0 Subtopics) (1 Notes )   (81 Patent Titles )   (10 Patent Abstracts ) (2/23/2016)

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Subtopics

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2 Notes

1. Introduction

2. CNT Composites

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2. CNT Composites

“Carbon nanotubes have interesting and potentially useful electrical and mechanical properties. Due to these and other properties, carbon nanotubes have become a significant focus of research and development for use in electron emitting devices, sensors, transistors, and other devices. It is becoming increasingly popular for carbon nanotubes to be used to make composite materials. Carbon nanotubes can be composed of coaxial cylinders of graphite sheets. Carbon nanotubes composited with metals, semiconductors, or polymers result in a composite material with qualities of both materials. Generally, the composite has a solid linear structure or a sheet-shaped structure.”

U.S. Patent 9,242,443 (January 26, 2016), “Method for Making Carbon Nanotube Composite Hollow Structure,” Yang Wei, and Shou-Shan Fan (Tsiinghua University, Beijing, China, and  Hon Hai Precision Industry CO., LTD. New Taipei, Taiwan).

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1. Introduction 

“Development of carbon nanotube (CNT)-based, and particularly single-wall carbon nanotube (SWNT)-based, polymer nanocomposites is attractive because of the possibility of combining the extraordinary properties of CNTs with the lightweight character of polymers to develop unique, tailorable materials. CNTs possess tensile strengths of 37 GPa, estimated Young's moduli of 640 GPa (Baughman et al., Science 2002, 297, 787-792), and high strains-at-break (.about.5-6%). Further, when released from strain, bent CNTs generally recover their original form without direct fracture (Walters et al., Appl. Phys. Lett., 1999, 74, 3803-3805).

On the basis of the above-mentioned extraordinary mechanical properties and the large aspect ratio associated with individual tubes (typically .about.10.sup.3-10.sup.4), CNTs are excellent candidates for the development of nano-reinforced polymer composite materials. However, assurance of homogeneous dispersion, interfacial compatibility between the CNT and the polymer, and exfoliation of the aggregates (i.e., bundles) of CNTs, are required for the successful integration of CNTs into nanocomposites. Accordingly, a detailed examination of dispersion of CNTs in solutions and in various model polymeric systems would go a long way in enabling the tailoring of extremely lightweight multifunctional materials that could find use in applications ranging from hip replacements to space travel.”

Carbon Nanotube Nanocomposites, US Patent 1,855,583)  (6/4/2013)

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Copyright 2016 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

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Roger D. Corneliussen, Editor
Professor Emeritus
Materials Engineering
Drexel University, Philadelphia, PA
Editor
Maro Publications
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Exton, PA 19341
Telephone: 610 363 1533
Email:
cornelrd@bee.net
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