Featured Research

from universities, journals, and other organizations

Slip knot key to creating world's toughest fiber

Date:
May 20, 2014
Source:
Queen Mary, University of London
Summary:
A new way of making super tough fibers could be realized by a simple knot, according to new research from a materials scientist. A new article suggests the new method could make ordinary polymers -- large molecules with repeating units -- reach unprecedented toughness by adding a knot to absorb additional energy.

A new way of making super tough fibres could be realised by a simple knot, according to new research from a materials scientist at Queen Mary University of London.

Related Articles


Publishing in the journal PLOS ONE, the paper suggests the new method could make ordinary polymers -- large molecules with repeating units -- reach unprecedented toughness by adding a knot to absorb additional energy.

"The simple manoeuvre of adding a slip knot creates a coil of extra length that is resistant when it comes under tension and can dissipate energy thanks to the friction in the knot," said author Nicola Pugno, Professor of Materials Science at Queen Mary's School of Engineering and Materials Science.

Professor Pugno tested three different types of slip knots on commercial polymers such as dyneema and endumax, which are used in fishing lines.

The configuration that allowed for the most toughness was produced with endumax, increasing its toughness from 44 Joules per gram to 1070 Joules per gram, the equivalent of ten times that of Kevlar, which is used in body armour (90 Joules per gram).

Professor Pugno is working on different materials to find suitable knots for industries designing the next generation of super tough materials such as sustainable packaging and medical implants.

Professor Pugno is also based at the University of Trento and at the Fondazione Bruno Kessler in Trento, Italy.


Story Source:

The above story is based on materials provided by Queen Mary, University of London. Note: Materials may be edited for content and length.


Journal Reference:

  1. Nicola M. Pugno. The “Egg of Columbus” for Making the World's Toughest Fibres. PLoS ONE, 2014; 9 (4): e93079 DOI: 10.1371/journal.pone.0093079

Cite This Page:

Queen Mary, University of London. "Slip knot key to creating world's toughest fiber." ScienceDaily. ScienceDaily, 20 May 2014. <www.sciencedaily.com/releases/2014/05/140520120137.htm>.
Queen Mary, University of London. (2014, May 20). Slip knot key to creating world's toughest fiber. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2014/05/140520120137.htm
Queen Mary, University of London. "Slip knot key to creating world's toughest fiber." ScienceDaily. www.sciencedaily.com/releases/2014/05/140520120137.htm (accessed December 22, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Monday, December 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Will New A350 Help Airbus Fly?

Will New A350 Help Airbus Fly?

Reuters - Business Video Online (Dec. 22, 2014) — Qatar Airways takes first delivery of Airbus' new A350 passenger jet. As Joel Flynn reports it's the planemaker's response to the Boeing 787 Dreamliner and the culmination of eight years of development. Video provided by Reuters
Powered by NewsLook.com
Man Parachutes Off Lawn Chair Airlifted By Helium Balloons

Man Parachutes Off Lawn Chair Airlifted By Helium Balloons

Buzz60 (Dec. 22, 2014) — A BASE jumper rides a lawn chair, a shotgun, and a giant bunch of helium balloons into the sky in what seems like a country version of the movie 'Up." Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Touch-Free Smart Phone Empowers Mobility-Impaired

Touch-Free Smart Phone Empowers Mobility-Impaired

Reuters - Innovations Video Online (Dec. 21, 2014) — A touch-free phone developed in Israel enables the mobility-impaired to operate smart phones with just a movement of the head. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Existing Chemical Compounds Could Revive Failing Antibiotics, Says Danish Scientist

Existing Chemical Compounds Could Revive Failing Antibiotics, Says Danish Scientist

Reuters - Innovations Video Online (Dec. 21, 2014) — A team of scientists led by Danish chemist Jorn Christensen says they have isolated two chemical compounds within an existing antipsychotic medication that could be used to help a range of failing antibiotics work against killer bacterial infections, such as Tuberculosis. Jim Drury went to meet him. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins