Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > SouthWest NanoTechnologies Announces New Specialty Multi-Wall Carbon Nanotubes for Conductive Polymers

Abstract:
SouthWest NanoTechnologies (SWeNT) has developed two new grades in its SMW™ line of Specialty Multi-wall CNT. These materials are used as additives that enable higher electrical conductivity in polymer compounds and improved cathode performance in Lithium Ion batteries.

SouthWest NanoTechnologies Announces New Specialty Multi-Wall Carbon Nanotubes for Conductive Polymers

Norman, OK | Posted on June 13th, 2012

The new grades, SMW200 and SMW210 have demonstrated the greatest ease of dispersions and lowest percolation threshold of any MWCNT product in multiple customer thermoplastic compound evaluations. This enables ESD (electrostatic discharge) performance at lower filler loadings than either Carbon Black or other Multi-wall CNT, in a variety of polymers. This low percolation threshold minimizes the degradation of physical properties of the polymer, a common problem in heavily loaded compounds, and higher conductivity at comparable loading broadens the range of applications for conductive polymer compounds.

Both materials are synthesized by the CoMoCAT® method, widely recognized as producing the most consistent CNT products, and for its scalability. Both materials disperse easily into most polymers and have the same ultra-pure, defect-free, less entangled CNT.

SMW200 is a "purified" grade, with CNT purity of 96%+ (even higher purity research grades are available upon special request). SMW210 is an "as produced" grade, with CNT purity of 70%+, with the balance being mainly metal oxides used in the catalyst.

Because post-synthesis purification is not done for SMW210, the pricing is much lower.SMW210 has a hybrid structure with metal-oxide particles attached to the CNT, improving dispersion still further, at a much lower cost. In thermoplastic compounds, there is little performance difference between SMW200 and SMW210 with respect to ease of dispersion, conductivity and percolation, with most customers choosing SMW210 due to lower cost.

SMW200 has also been demonstrated as a Carbon Black replacement in Lithium Ion battery cathodes. Very low loadings (1 wt %) of SWM200 have resulted in doubled cycle life, higher capacity, lower heat build-up and better low temperature performance.

"We have already generated a great deal of customer interest in these materials, and resulting demand is driving us to increase capacity," says SWeNT CEO David Arthur. "We have just shipped our first 100 kg of SMW210 for a customer's full-scale qualification trial for a high-volume conductive polymer application. Also, several Li-ion battery manufacturers are testing SMW200 now (this higher purity grade may be required for certain applications like batteries). To meet anticipated demand in 2013, SWeNT is adding capacity of multiple tonnes per month."

For a 13-page summary report on the performance of SMW200 in Li-ion batteries, for data on conductivity in thermoplastics, or for published reports on conductive polymer applications contact us at .

####

About SouthWest NanoTechnologies, Inc. (SWeNT)
SouthWest NanoTechnologies (SWeNT) is a privately-held advanced materials company that manufactures high-quality Single-Wall and Specialty Multi-Wall carbon nanotube products in a variety of forms, including powders, pastes, dispersions and inks for a wide range of applications in the electronics and composites industries. SWeNT was founded in 2001 and has established commercial-scale manufacturing operations in Norman, OK and a business & applications development center in the Boston, MA area.

For more information, please click here

Contacts:
Andrew Lavin
A. Lavin Communications
516-944-4486

Copyright © SouthWest NanoTechnologies, Inc. (SWeNT)

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 News Press

News and information

Production of Biocompatible Polymers in Iran October 30th, 2014

Amorphous Coordination Polymer Particles as alternative to classical nanoplatforms for nanomedicine October 30th, 2014

'Electronic skin' could improve early breast cancer detection October 29th, 2014

New solar power material converts 90 percent of captured light into heat: SunShot Project aims to make solar cost competitive October 29th, 2014

Nanotubes/Buckyballs

Tiny carbon nanotube pores make big impact October 29th, 2014

Materials for the next generation of electronics and photovoltaics: MacArthur Fellow develops new uses for carbon nanotubes October 21st, 2014

Special UO microscope captures defects in nanotubes: University of Oregon chemists provide a detailed view of traps that disrupt energy flow, possibly pointing toward improved charge-carrying devices October 21st, 2014

Imaging electric charge propagating along microbial nanowires October 20th, 2014

Materials/Metamaterials

Production of Biocompatible Polymers in Iran October 30th, 2014

New solar power material converts 90 percent of captured light into heat: SunShot Project aims to make solar cost competitive October 29th, 2014

Watching the hidden life of materials: Ultrafast electron diffraction experiments open a new window on the microscopic world October 27th, 2014

Polymeric Scaffold Recreates Bladder Tissue October 27th, 2014

Announcements

Production of Biocompatible Polymers in Iran October 30th, 2014

Amorphous Coordination Polymer Particles as alternative to classical nanoplatforms for nanomedicine October 30th, 2014

Microrockets fueled by water neutralize chemical and biological warfare agents October 29th, 2014

Nanosafety research – there’s room for improvement October 29th, 2014

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Super stable garnet ceramics may be ideal for high-energy lithium batteries October 21st, 2014

Graphenea opens US branch October 16th, 2014

NTU develops ultra-fast charging batteries that last 20 years October 14th, 2014

Electrically conductive plastics promising for batteries, solar cells October 10th, 2014

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 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE