NORMAN OK, November 26, 2012 -- SouthWest NanoTechnologies Inc., a leading developer of high quality carbon nanotubes, will be exhibiting new Carbon Nanotube products at the 2012 Materials Research Society (MRS) Fall Meeting & Exhibit, November 27-29, in booth 1116 at the Hynes Convention Center in Boston.
SWeNT will feature Single-Wall Carbon Nanotube (SWCNT) SG65i, developed for use in printed semiconductor devices. SG65i is produced using the patented CoMoCAT® process, widely recognized for its unique ability to control SWCNT chirality. SWeNT will also feature SMW210, a new grade in its SMW™ line of Specialty Multi-Wall CNT.
SG65i is an advancement on SG65, recognized for its high concentration of semiconducting species. For SG65i ≥ 95% of the CNT are semiconducting in nature. This enables a wide range of printed electronics applications, requiring little or no additional processing to fabricate printed TFTs, for example.
SMW210 and its highly purified sister product, SMW200, have demonstrated the greatest ease of dispersion 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.
Because certain post-synthesis processes are not needed 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 than SMW200. In thermoplastic compounds, there is little performance difference between SMW200 and SMW210 with respect to ease of dispersion, conductivity and percolation, with most customers for conductive polymers choosing SMW210 due to economic benefits.
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.
MRS is an international organization almost 16,000 materials researchers from academia, industry, and government and a recognized leader in promoting the advancement of interdisciplinary materials research to improve the quality of life. In addition to JMR, MRS publishes MRS Bulletin and the MRS Online Proceedings Library, and organizes high quality scientific meetings to facilitate interactions among a wide range of experts from the cutting edge of the global materials community. More information about the Materials Research Society can be found on its website, www.mrs.org.
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 as well as its business and applications development center in the Boston, MA area. For more information, please visit www.swentnano.com.