Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. Space Industry and Business News .




TECH SPACE
'Terminator' polymer that regenerates itself
by Staff Writers
London, UK (SPX) Sep 17, 2013


A cylindrical sample of the elastomer mends itself after being cut in two by a razor blade and can be manually stretched without rupture. Credit: IK4 CIDETEC, San Sebastian, Spain.

Scientists in Spain have reported the first self-healing polymer that spontaneously and independently repairs itself without any intervention. The new material could be used to improve the security and lifetime of plastic parts in everyday products such as electrical components, cars and even houses.

The researchers have dubbed the material a 'Terminator' polymer in tribute to the shape-shifting, molten T-100 terminator robot from the Terminator 2 film.

The research is published in the Royal Society of Chemistry journal Materials Horizons.

Self-healing polymers that can spontaneously achieve quantitative healing in the absence of a catalyst have never been reported, until now. The scientists prepared the self-healing thermoset elastomers from common polymeric starting materials using a simple and inexpensive approach.

A video shows that the permanently cross-linked poly(urea-urethane) elastomeric network completely mends itself after being cut in two with a razor blade. A metathesis reaction of aromatic disulphides, which naturally exchange at room temperature, causes the regeneration.

The polymer behaves as a Velcro-like sealant or adhesive, displaying an impressive 97 per cent healing efficiency in just two hours. The researchers show that after cutting the material into two separate pieces with a razor blade and allowing it to self-heal, the material is unbreakable when stretched manually.

The authors said: "The fact that poly(urea-urethane)s with similar chemical composition and mechanical properties are already used in a wide range of commercial products makes this system very attractive for a fast and easy implementation in real industrial applications."

Paper

.


Related Links
Royal Society of Chemistry
Space Technology News - Applications and Research






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





TECH SPACE
Catalysts team up with textiles
Mulheim, Germany (SPX) Sep 18, 2013
In future, it will be much easier to produce some active pharmaceutical substances and chemical compounds than was the case to date. An international team working with chemists from the Max-Planck-Institut fur Kohlenforschung in Mulheim an der Ruhr have immobilised various catalysts on nylon in a very simple way. Catalysts mediate between the reagents in a chemical reaction and control the ... read more


TECH SPACE
Yahoo Japan develops 3D search engine-printer

GPS 3 And OCX Satellite Launch and Early Orbit Operations Successfully Demonstrated

'Terminator' polymer that regenerates itself

Northrop Grumman Delivers AEHF Flight 4 Antenna Precision Pointing Unit

TECH SPACE
Atlas 5 Lofts 3rd AEHF Military Comms Satellites

Unified Military Intelligence Picture Helping to Dispel the Fog of War

New Military Communications Satellite Built By Lockheed Martin Launches

US Navy Poised to Launch Lockheed Martin-Built Secure Communications Satellite for Mobile Users

TECH SPACE
Russia launches three communication satellites

Arianespace remains the global launch services leader

Russian space official denies report of problem in Soyuz return

Lockheed Martin Atlas V To Launch Morelos-3 ComSat

TECH SPACE
Raytheon UK receives first order for its latest GPS Anti-Jam prototype

Next Boeing GPS IIF Satellite Arrives at Cape Canaveral for Launch

USAF Institute of Technology signs Agreement on new GPS technology development with Locata

Raytheon GPS Launch and Checkout capability receives Interim Authorization to Test

TECH SPACE
Boeing to end C-17 military aircraft program in 2015

NASA Celebrates National Aerospace Week

Dutch to buy JSF fighter jets in 4.5-bn-euro deal

Raytheon moves forward on DARPA Persistent Close Air Support program

TECH SPACE
Toward a truly white organic LED

New magnetic semiconductor material holds promise for 'spintronics'

Growing thin films of germanium

Shining a little light changes metal into semiconductor

TECH SPACE
Astrium to provide new satellite imagery for Google Maps and Google Earth

New insights solve 300-year-old problem: The dynamics of the Earth's core

Astrium Services targeting geo information business growth

Using digital SLRs to measure the height of Northern Lights

TECH SPACE
Throw away replaces take away for Danish restaurant

Costa Concordia salvage operation to go ahead

Mongolia environmentalists held after shot at parliament: reports

China vows air pollution cuts in major cities




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement