Military Fabric Like A Smart Second Skin

Next-generation military uniforms may use a fabric that repels chemical and biological agents in one 'mode' and then reverts to a more breathable fabric that is more easily wearable.

The researchers say the fabric will be able to switch reversibly from a highly breathable state to a protective one in response to the presence of the environmental threat without the need for an external control system. In the protective state, the uniform material will block the chemical threat while maintaining a good breathability level. “The uniform will be like a smart second skin that responds to the environment,” says Fornasiero.

UMass Amherst polymer scientists bring expertise in additive-driven assembly processes that bring polymers and nanoparticles together to produce hybrid functional materials to the project. Membrane and layer fabrication will take place in part through the university’s Roll-to-Roll Nanofabrication Laboratory.

The new fabric’s reversibility is due to highly breathable membranes with pores made of a few-nanometer-wide, vertically-aligned carbon nanotubes modified with a functional surface layer designed to respond to the presence of a chemical warfare agent, says Watkins at UMass Amherst. The threat response would be triggered by direct chemical warfare agent attack. The fabric would switch to a protective state by closing the pore entrance or by shedding the contaminated surface layer.

For wearer comfort and safety, high breathability is a critical requirement for protective clothing to prevent heat stress when military personnel are engaged in missions in contaminated environments. To provide high breathability, the new composite material will take advantage of the unique transport properties of carbon nanotube pores, which offer gas transport rates two orders of magnitude faster than any other pore of similar size.

The polymer scientists point out that biological agents such as bacteria and viruses are close to 10 nanometers in size. Because the membrane pores on the uniform are only a few nanometers wide, these membranes will block such agents.

However, chemical agents such as mustard gas and nerve gas can be much smaller and require the membrane pores to be able to react to block that threat. To create a multifunctional membrane, the research team plans to modify the surface of the original prototype carbon nanotube membranes with chemical threat responsive functional groups. These functional groups sense and block the threat like gatekeepers on entrance.

The scientists also plan to develop a second, “shedding” response scheme in which the fabric exfoliates upon recation with a chemical agent. In this way, the fabric will be able to block chemical agents such as sulfur mustard (blister agent), GD and VX nerve agents, toxins such as staphylococcal enterotoxin and biological spores such as anthrax.

Carter at UMass Amherst says, “Mimicking the way real skin responds to threats by exfoliation and shedding of contaminated areas will allow for a dynamic responsive garment, all achieved through controlled chemical reactions in this new advanced fabric.”

Science fiction writers have helped us all dream about fabrics that are either protective - or transformable. In his 1951 novel Foundation, Isaac Asimov wrote about an unstainable plasto-textile, while readers of Neal Stephenson's 1995 novel The Diamond Age recall the fabricates that would actually eject dirt or other unwanted particles from garments.

JG Ballard fans will want me to remember clothing that was designed to transform, like the bio-fabrics from his 1970 short story Say Goodbye to the Wind.

Via UMass.

Scroll down for more stories in the same category. (Story submitted 11/29/2012)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 1 )

Related News Stories - (" Material ")

Self-Healing Circuits From Carnegie Mellon
'It even had an inter-skin layer of gum that could seal the punctures...'- Raymond Z. Gallun, 1951.

Dune Fans! Metal-Organic Frameworks Make Science Fiction Real
'Dew collectors,' he muttered, enchanted by the simple beauty of such a scheme. - Frank Herbert, 1965.

Fungi-Infused Concrete Repairs Itself
'I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.'- J.G. Ballard, 1962.

3D Printed Graphene Aerogel - So Light!
'... light as cork and stronger than steel...' - Edgar Rice Burroughs, 1929.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

LA Subway Scanner, As Seen In 'Total Recall'
'I'm afraid to tell you this Mr. Quaid, but you have suffered a schizoed embolism...'

Sion Electric Car Covered With Solar Panels
'It drew its power from six square yards of sunpower screens on its low curved roof.'

PAL-V Liberty Flying Helicopter Car
'...lifted themselves to skimming flight upon whirling helicopters."

Space Drones - UK's Effective Space To Launch Rocket Tugs
'Twenty rocket tugs towed it from its Earth hangar out into space.'

DIY Autonomous Robot Detects Trash
'The search-bug detached itself and rolled forward.'

Ancient Russian Walking Excavator Would Be Perfect RV
I don't need it to go fast, it just needs to amble along.

ELROI Satellite 'License Plate'
Robert Heinlein was thinking about this in 1941.

When Robots Beg For Their Lives
"Just what do you think you're doing... Dave.'

Do You Still Want A Folding Screen Phone?
'A paper thin polycarbon screen unfurled...'

'Snapchat Dysmorphia' Now A Thing, Say Plastic Surgeons
'The program raced up the screen one scan line at a time, subtly smoothing, deleting and coloring.'

Quiet Electric Cars Law Finalized By US Transportation Department
'... a sound tape to supply the noise'

Drone Assassin Fails To Kill Venezuelan President
'The spotter descends, and we think it searches the vicinity, looking for the victim's face...'

Stick-On Tape Speakers, As Predicted By Bruce Sterling
Flexible tape speakers, someday.

Bezos Invites You To New Life In Off-World Colonies
'A new life awaits you!'

Amazon's Rekognition System Sees Criminals In Congress
'... the imprint of her image on the telephoto cell.'

Build Your Own Space Suit For Cheap
'I'm going to pump the air from this room... so that the interior will be like airless and pressure-less space.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.