Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > A heater made from woven fabrics

Thanks to the combination of two new dispersion technologies aqueous suspensions of Baytubes® carbon nanotubes (CNTs) can be produced which contain single tubes and thus show a high electrical and thermal conductivity. Multifilament yarns coated with such CNT dispersions can be woven to efficient fabric heaters. Such heaters already performed well in preventing the water in water storage tanks of JR Hokkaido’s “Ryuhyo-Norokko” train from freezing.
Thanks to the combination of two new dispersion technologies aqueous suspensions of Baytubes® carbon nanotubes (CNTs) can be produced which contain single tubes and thus show a high electrical and thermal conductivity. Multifilament yarns coated with such CNT dispersions can be woven to efficient fabric heaters. Such heaters already performed well in preventing the water in water storage tanks of JR Hokkaido’s “Ryuhyo-Norokko” train from freezing.

Abstract:
First commercial application of Baytubes® carbon nanotubes in Japan

New dispersion technology enables the full utilization of the electrical and thermal conductivity of carbon nanotubes

A heater made from woven fabrics

Leverkusen | Posted on February 23rd, 2010

Aqueous suspensions of carbon nanotubes (CNTs) containing individual tubes offer interesting perspectives for a number of new applications which depend on a high electrical or thermal conductivity, respectively. In particular, this applies to multifilament yarns coated with such CNT dispersions. An interesting development using multifilament yarns is a new fabric heater made by weaving CNTEC® conductive yarns from Kuraray Living Co., Ltd. This fabric generates heat homogeneously all over the surface because of its outstanding conductivity and is supposed to be the first commercial use of Baytubes® CNTs from Bayer MaterialScience in the Japanese market.

The fabric heater is lightweight and thin, compact and shows a long-lasting bending resistance. It can be used for instance for car seats, household electrical appliances, for heating of clothes and as an anti-freezing material. Tests revealed that it may for example be installed in the water storage tank of JR Hokkaido's "Ryuhyo-Norokko" train. Inside this train the temperature drops to around -20 °C in wintertime, because so far no heating devices other than potbelly stoves are available. According to JR Hokkaido railway company the fabric heater performed well in preventing the water from freezing. A seat heating application of the fabric heater is still on trial on another JR Hokkaido train line. It is anticipated that the aqueous dispersions might as well be suitable for the compounding of various kinds of materials.

In the course of their production CNTs usually form large and stable agglomerates where the tubes are tightly entangled to each other. Dispersing such agglomerates into individual tubes which show a maximum of electrical and thermal conductivity has so far been a challenge. Thanks to a new dispersion technology using a zwitterionic surfactant developed and patented by Prof. Dr. Bunshi Fugetsu from Hokkaido University it is now possible to produce stable aqueous suspensions containing CNTs at a mono-dispersed (tubular) level in industrial quantities. To achieve this, a unique method for non-destructive dispersion of CNT agglomerates into individual tubes developed by the Inoac Technical Center Co., Ltd. is applied as well. The products show a stable and homogeneous conductivity and a durability that easily covers the service life that is required for industrial products. Through a combination of both technologies it is possible to disentangle the agglomerates of Baytubes® in an efficient and stable way.

####

About Bayer MaterialScience
With 2008 sales of EUR 9.7 billion, Bayer MaterialScience is among the world’s largest polymer companies. Business activities are focused on the manufacture of high-tech polymer materials and the development of innovative solutions for products used in many areas of daily life. The main segments served are the automotive, electrical and electronics, construction and sports and leisure industries. Bayer MaterialScience has 30 production sites around the globe and employed approximately 15,100 people at the end of 2008. Bayer MaterialScience is a Bayer Group company.

For more information, please click here

Contacts:
Bayer MaterialScience AG
Dr. Frank Rothbarth
Tel.: + 49 214 30-25363
Fax: + 49 214 30-66426

Copyright © Bayer MaterialScience

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

Organometallics welcomes new editor-in-chief: Paul Chirik, Ph.D. July 22nd, 2014

The Hiden EQP Plasma Diagnostic with on-board MCA July 22nd, 2014

Iran to Hold 3rd Int'l Forum on Nanotechnology Economy July 22nd, 2014

Nanometrics Announces Upcoming Investor Events July 22nd, 2014

Products

QuantuMDx announce prototype handheld lab for 15 minute malaria diagnosis and drug resistance testing April 23rd, 2014

Nanovations Sets new Benchmark in Automotive Windscreen Coating Durability: Nanovations new automotive glass coating Vision Protect, sets new benchmark in glass coating durability March 23rd, 2014

Tawada CleanTech to show fabric duct and eco cool coating in MegaBuild March 21st, 2014

NEI Introduces Self-healing Anti-corrosion Coating for Zinc-Plated and Galvanized Steel March 14th, 2014

Nanotubes/Buckyballs

University of Houston researchers create new method to draw molecules from live cells: Technique using magnetic nanomaterials offers promise for diagnosis, gene therapy July 17th, 2014

3-D nanostructure could benefit nanoelectronics, gas storage: Rice U. researchers predict functional advantages of 3-D boron nitride July 15th, 2014

Researchers discover boron 'buckyball' July 14th, 2014

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Announcements

Nanometrics Announces Upcoming Investor Events July 22nd, 2014

Bruker Awarded Fourth PeakForce Tapping Patent: AFM Mode Uniquely Combines Highest Resolution Imaging and Material Property Mapping July 22nd, 2014

NIST shows ultrasonically propelled nanorods spin dizzyingly fast July 22nd, 2014

Penn Study: Understanding Graphene’s Electrical Properties on an Atomic Level July 22nd, 2014

Automotive/Transportation

Using Sand to Improve Battery Performance: Researchers develop low cost, environmentally friendly way to produce sand-based lithium ion batteries that outperform standard by three times July 8th, 2014

Up in Flames: Evidence Confirms Combustion Theory: Berkeley Lab and University of Hawaii research outlines the story of soot, with implications for cleaner-burning fuels July 1st, 2014

Nanofluids Improve Performance of Automobile Radiator July 1st, 2014

Iranian Researchers Produce Protein Nanoparticles from Chicken Feather June 11th, 2014

Home

Industrial Nanotech, Inc. Announces Agreement with Eagle Roofing Products to Produce Ultra-Premium Concrete Roof Tile June 17th, 2014

SABIC collaborates with Cima NanoTech on breakthrough technology: industry-first transparent conductive polycarbonate film May 29th, 2014

Large interest in new high-performance insulating material SLENTITE May 28th, 2014

TenasiTech secures investment to ‘toughen up’ acrylic glass May 1st, 2014

Textiles/Clothing

Iranian Scientists Change Structure of Nanoparticles to Increase Durability of Antibacterial Activity of Fabrics July 7th, 2014

Nano-coatings release almost no nano-particles: Silver in the washing machine June 30th, 2014

Iranian Researchers Produce Protein Nanoparticles from Chicken Feather June 11th, 2014

Breakthrough in energy storage: Electrical cables that can store energy: New nanotech may provide power storage in electric cables, clothes June 2nd, 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