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Sigma-Aldrich Materials Science is expanding its offering of SouthWest NanoTechnologies (SWeNT) carbon nanotubes (CNTs), to include SWeNT SMW100 Specialty Multi-Wall CNT and CG200 single wall, large diameter CNT.
SWeNT’s carbon nanotubes are synthesized using the company’s patented CoMoCAT process and, according to SouthWest NanoTechnologies , feature high purity with highly consistent physical properties.
The new SWeNT SMW100 material was developed for applications that require significantly better electrical and mechanical performance than can be achieved with conventional multi-wall CNT, without the cost or dispersion difficulties associated with single-wall CNTs.
The SWeNT CG200 is a single wall, large diameter CNT with a high metallic tube content offering higher electrical conductivity.
Target applications include conductive polymers, lithium-ion batteries and materials for structural composite manufacturing. Traditional multi-wall CNT products are typically used as a conductive additive for thermoplastic polymers, enabling moulded plastic parts to be electrically conductive and provide electrostatic discharge (ESD) protection. However, this electrical conductivity benefit often results in mechanical properties being compromised compared with the unfilled polymer. SMW can reduce or eliminate this compromise at a fraction of the cost of single-wall CNTs.
“Sigma-Aldrich is widely recognized around the world as a world-class supplier of high quality materials,” says Dave Arthur, CEO of SWeNT. “They have been a great partner for SWeNT, helping us serve the research market and supporting early stages of development for commercial markets with our line of high purity carbon nanotube products, produced using the patented CoMoCAT process. CoMoCAT assures consistent quality and is scalable to meet the needs of rapidly growing applications.”
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