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 ")

Crystalized Light Created At Princeton
'It will be matter, matter made of light...'- John W. Campbell, 1930.

New Material Is One Molecule Thick
'Hasan always pitched a Gauzy - a one-molecule-layer tent...'- Roger Zelazny, 1966.

Vantablack Is Blacker Than Your Black
'Well, we have a black coating now that’s ninety-nine percent absorptive...'- Dpc Smith, 1934.

Shatterproof Phone Screens Coming Soon
'It was like the pounding of a rock...'-Clifford Simak, 1963.

 

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

MIT's Robotic Cheetah Runs Free - And Frolics In The Grass
'THEY sent A SLAMHOUND on Turner's trail...'

Flying Robot Has An Arm
Drones with arms.

Strati 3D Printed Car
'You rode in it - you know how good it is.'

Tracking Spinning Space Junk
'Loose nuts and bolts... had been accumulating in Earth orbit'

Baidu Kuaisou Dune Poison Snooper Chopsticks
'Unobtrusive inspections with... snoopers... Will it be chaumas - poison in the food?'

Crystalized Light Created At Princeton
'It will be matter, matter made of light...'

The Amazing Gravity-Assisted Journey Of Rosetta
'...We used the [moon's] attraction to give us additional starting speed'

AirDog Auto-Follow Drone Captures Your Awesomeness
'Tight mid-shot and pull out on but behind me...'

Dell's Venue 8 7000 Tablet With RealSense Depth-Mapping
Focus on any part of a picture later.

Google's Cartographer Backpack For Indoor Mapping
'He reached to unsnap the cartograph from his belt.'

T-Mobile Sues Huawei Over Button Pushing Robot Idea From The 1930's
'Not the slightest change in their working betrayed the fact that they were now being directed by a machine instead of human beings.'

Hayabusa-2 Asteroid Cannon Strategy From 1950's SF Novel
'Fire streaked in a thin line from the muzzle of a cannon-like tube...'

Dyson 360 Eye Robot Vacuum Cleaner
'It vacuum-cleaned... or polished, consulting tapes in its idiot memory to decide which.'

First 3D Printer In Space?
'It can be mass-produced only in the orbiting factories...'

Google's Project Wing Will Find You
'Mechanical entities that flit at the edges of our vision, that can go anywhere, that are in our very midst...'

3D Printed Space Pizza For Astronauts
Put those butcher knives aside, and let me save that meal!

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.