Home / Knowledge / News / Textiles / Carbon nanotube fibers surpass copper cables
Carbon nanotube fibers surpass copper cables
24
Feb '14
On a pound-per-pound basis, carbon nanotube-based fibers invented at Rice University have greater capacity to carry electrical current than copper cables of the same mass, according to new research.
 
While individual nanotubes are capable of transmitting nearly 1,000 times more current than copper, the same tubes coalesced into a fiber using other technologies fail long before reaching that capacity.
 
But a series of tests at Rice showed the wet-spun carbon nanotube fiber still handily beat copper, carrying up to four times as much current as a copper wire of the same mass.
 
That, said the researchers, makes nanotube-based cables an ideal platform for lightweight power transmission in systems where weight is a significant factor, like aerospace applications.
 
The analysis led by Rice professors Junichiro Kono and Matteo Pasquali appeared online this week in the journal Advanced Functional Materials. Just a year ago the journal Science reported that Pasquali’s lab, in collaboration with scientists at the Dutch firm Teijin Aramid, created a very strong conductive fiber out of carbon nanotubes.
 
Present-day transmission cables made of copper or aluminum are heavy because their low tensile strength requires steel-core reinforcement.
 
Scientists working with nanoscale materials have long thought there’s a better way to move electricity from here to there. Certain types of carbon nanotubes can carry far more electricity than copper. The ideal cable would be made of long metallic “armchair” nanotubes that would transmit current over great distances with negligible loss, but such a cable is not feasible because it’s not yet possible to manufacture pure armchairs in bulk, Pasquali said.
 
In the meantime, the Pasquali lab has created a method to spin fiber from a mix of nanotube types that still outperforms copper. The cable developed by Pasquali and Teijin Aramid is strong and flexible even though at 20 microns wide, it’s thinner than a human hair.
 
Pasquali turned to Kono and his colleagues, including lead author Xuan Wang, a postdoctoral researcher at Rice, to quantify the fiber’s capabilities.
 
Pasquali said there has been a disconnect between electrical engineers who study the current carrying capacity of conductors and materials scientists working on carbon nanotubes. “That has generated some confusion in the literature over the right comparisons to make,” he said. “Jun and Xuan really got to the bottom of how to do these measurements well and compare apples to apples.”


Must ReadView All

Textiles | On 25th Jul 2017

Global growth to pick up in 2017 and 2018: IMF

The pickup in global growth anticipated in the April World Economic...

Textiles | On 25th Jul 2017

Egypt signs agreement with UNIDO for cotton production

Egypt has signed a €1.5 million ($1.74 million) cooperation agreement ...

Textiles | On 25th Jul 2017

Pakistan’s textile exports stay stable in FY17

The value of textile and garment exports made by Pakistan increased...

Interviews View All

Nuno Venda
ROQ

‘There has been an increase in demand for water based inks, rather than...

Saket Garg
Garg Corporation

The biggest challenge is lack of skilled workforce and competition from...

Binoy Ravjani
Hero's Fashion

‘One of the recent trends in hand block printing is the indigo process,...

Giorgio Mantovani
Corman S.p.A

Giorgio Mantovani, MD of Corman, with a presence in both Milano and New...

Marcel Alberts
Eurofibers

Coating at a fibre level is a practice not usually seen in the...

Silke Brand-Kirsch
Schlegel und Partner

Silke Brand-Kirsch, executive partner of Schlegel und Partner, a leading...

Bani Batra

Bani Batra’s couture wedding collection is inspired by traditional Indian...

Karan Arora
Karan Arora

Bridal couture created with rich Indian heritage, exquisite craftsmanship...

Aditi Somani
Aditi Somani

Aditi Somani specialises in luxury fusion wear with international cuts and ...

Press Release

Press Release

Letter to Editor

Letter to Editor

RSS Feed

RSS Feed

Submit your press release on


editorial@fibre2fashion.com

Letter To Editor






(Max. 8000 char.)

Search Companies





SEARCH

July 2017

Subscribe today and get the latest update on Textiles, Fashion, Apparel and so on.

news category


Related Categories:

Planning to Take the Leap towards
Sustainability?

Do you see sustainability as a route to business growth?

Yes No

Do you think the sustainability space has the needed tools and resources available for a business to lead change?

Yes No

Do you think adopting a sustainable approach will be a profitable move for your business?

Yes No

Do you want the world to know about your sustainability journey and your business’ environmental footprint?

Yes No

Thanks for your valuable feedback. Claim your free latest sustainability e-book.


E-News Insight
Subscribe Today and Get the
Latest News Update in Your Mail Box.
Advanced Search



X