Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Polymer composites reinforced with single-walled carbon nanotubes

SEM image of the fracture edge of a laminated nanocomposite.
SEM image of the fracture edge of a laminated nanocomposite.

Abstract:
Single-walled carbon nanotubes (SWCNTs) have high potential for improving the mechanical properties of composite materials owing to their unique structure and remarkable mechanical properties. A critical challenge in nanocomposite fabrication is to realize effective transfer of the excellent mechanical properties of SWCNTs to the macroscale mechanical properties of the matrix by adding SWCNTs as reinforcement.

Polymer composites reinforced with single-walled carbon nanotubes

Germany | Posted on November 15th, 2012

A remarkable strengthening effect has been observed in SWCNT/polymer composites. However, up until now it has been difficult to fabricate SWCNT/metal composites with effective load transfer capacity because of the agglomeration of the SWCNTs in the matrix and the poor interfacial bonding between SWCNT and the metal matrix in the traditional powder-metallurgy processes.

This situation has now been changed by work from a team led by Sishen Xie and Weiya Zhou at the Institute of Physics, Chinese Academy of Sciences. They report a simple, easy and effective method to fabricate Cu/SWCNT/Cu sandwich-type laminated nanocomposites by means of electrodeposition using a freestanding SWCNT film with continuous reticulate structure as template. In the Cu/SWCNT/Cu laminated nanocomposites, not only can the SWCNT film keep continuous reticulate structure, but the orientation of SWCNTs can also be controlled. The continuous reticulate architecture of the SWCNT film and the strong interfacial strength between the SWCNT and Cu matrix result in an effective load-transfer capacity of the SWCNT bundles in the laminated nanocomposites. The estimated Young's modulus of the SWCNT bundles in the composite are in a range of 860-960 GPa. Such high load-transfer efficiency leads to the extremely high mechanical strength of the laminated composites.

The mechanical performance of SWCNT-reinforced metal matrix composites essentially relies on the loading status of the SWCNTs in the composite. Therefore, it is crucial to understand the loading status of the SWCNTs in the composite during strain. Though Raman spectroscopy has been successfully applied to characterize the local strain of CNTs in the polymer matrix by the shift of Raman peaks, low content of CNTs and existence of bulky item make a Raman characterization of the loading status of CNTs in the CNT-reinforced metal-matrix composites under strain difficult. The reported thin Cu/SWCNTs/Cu laminated nanocomposite film overcomes above problems. The loading status of the SWCNTs in metal-matrix composite during strain was successfully characterized by Raman spectroscopy, which provides a route to investigate the load transfer of SWCNTs in the metal matrix composite.

####

For more information, please click here

Copyright © Wiley-VCH Materials Science Journals

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Link to the original paper on Wiley Online Library:

Related News Press

News and information

New Biological Nano-Fertilizers Presented in Iran as Appropriate Replacements for Chemical Fertilizers April 18th, 2015

Iranian Foodstuff, Agricultural Industries Welcome Nanotechnology Packaging Bags April 18th, 2015

Nanocomposites Play Effective Role in Production of Smart Fibers April 18th, 2015

Dais Analytic Corporation Appoints Eliza Wang to Board of Directors: Company's Newest Director Brings Expertise in Commercial and Legal Matters Both in the United States and China; Joins on the Heels of Successful Business Development Trade Mission to China April 18th, 2015

Imaging

Combined effort for structural determination April 15th, 2015

JPK reports on the use of the NanoWizard® 3 AFM system at the Hebrew University of Jerusalem April 14th, 2015

Deben reports on the research of Dr Sunita Ho from UCSF using a CCT500 tensile stage to study the behaviour of dental materials April 14th, 2015

The Casiraghi Group, located at the University of Manchester's NanoScience and Spectroscopy Laboratory, use Raman in the study of graphene April 14th, 2015

Nanotubes/Buckyballs

Nanotubes with two walls have singular qualities: Rice University lab calculates unique electronic qualities of double-walled carbon nanotubes April 16th, 2015

MIT sensor detects spoiled meat: Tiny device could be incorporated into 'smart packaging' to improve food safety April 15th, 2015

Taking aircraft manufacturing out of the oven: New technique uses carbon nanotube film to directly heat and cure composite materials April 14th, 2015

Iranian Scientists Evaluate Dynamic Interaction between 2 Carbon Nanotubes April 14th, 2015

Discoveries

Optical resonance-based biosensors designed for medical applications April 18th, 2015

Iranian Foodstuff, Agricultural Industries Welcome Nanotechnology Packaging Bags April 18th, 2015

Nanocomposites Play Effective Role in Production of Smart Fibers April 18th, 2015

Protein Building Blocks for Nanosystems: Scientists develop method for producing bio-based materials with new properties April 17th, 2015

Materials/Metamaterials

The National Science Foundation names engineering researcher Andrea Alú its Alan T. Waterman awardee for 2015: Alú is a pioneer in the field of metamaterials who has developed "cloaking" technology to make objects invisible to sensors April 16th, 2015

Cobalt film a clean-fuel find: Rice University discovery is efficient, robust at drawing hydrogen and oxygen from water April 15th, 2015

Combined effort for structural determination April 15th, 2015

Harvesting energy from electromagnetic waves: In the future, clean alternatives such as harvesting energy from electromagnetic waves may help ease the world's energy shortage April 15th, 2015

Announcements

New Biological Nano-Fertilizers Presented in Iran as Appropriate Replacements for Chemical Fertilizers April 18th, 2015

Iranian Foodstuff, Agricultural Industries Welcome Nanotechnology Packaging Bags April 18th, 2015

Nanocomposites Play Effective Role in Production of Smart Fibers April 18th, 2015

Dais Analytic Corporation Appoints Eliza Wang to Board of Directors: Company's Newest Director Brings Expertise in Commercial and Legal Matters Both in the United States and China; Joins on the Heels of Successful Business Development Trade Mission to China April 18th, 2015

Tools

Oxford Instruments commissions high field outsert magnet system for the National High Magnetic Field Laboratory 32 Tesla magnet program April 17th, 2015

Lanthanide-Organic Framework Nanothermometers Prepared by Spray-Drying April 16th, 2015

Combined effort for structural determination April 15th, 2015

The Casiraghi Group, located at the University of Manchester's NanoScience and Spectroscopy Laboratory, use Raman in the study of graphene April 14th, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE