Self-Cleaning Wool And Silk Fabrics
Self-cleaning fabrics made from wool and silk have been achieved, in the laboratory, using nanoparticle coatings. In tests, coated fabrics were greatly resistant to common stains.
(Self-cleaning fabrics [pdf])
FESEM (Field Emission Scanning Electron Microscopy) images of (a) pristine wool fiber, (b) modified wool fiber, (c) T60-coated wool fiber, (d) T60-coated modified wool fiber.
The nanoparticle coating was more effective than plain wool as well as wool coated with a conventional stain-fighting coating.
(Comparison of nanotech coating for stain protection [pdf])
"wool treated with a new nanoparticle coating (bottom row) removed red wine stains more effectively than plain wool (top row) and wool coated with another stain-fighting chemical (middle row), scientists say. (Credit: Monash University and American Chemical Society) It shows "the degradation of red wine stains on pristine PO, T60-coated TO, and T60-coated modified TS samples after 0, 8, and 20 h of light irradiation by a solar light simulator."
The study concludes:
This study shows that self-cleaning fibrous proteins such
as wool can be produced by a simple coating process with
anatase TiO2 under mild conditions. A modification of these
fibrous proteins with succinic anhydride introduces additional
carboxylic groups by acylation which allows for enhanced
bonding between TiO2 and the fibers that in turn results in
more effective self-cleaning properties. The chemical modi-
fication and anatase coating processes do not employ toxic
reagents or solvents and the procedures are carried out under
mild conditions favorable for keratinous materials.
Science fiction fans are ready to order their self-cleaing clothing; Neal Stephenson serves up the vision from his 1995 book The Diamond Age:
...with a quick brush, John and Gwendolyn were able to transfer most of the dirt onto their white gloves. From there it went straight into the air. Most gentlemen's and ladies' gloves nowadays were constructed of infinitesimal fabricules that knew how to eject dirt; you could thrust your gloved hand into mud, and it would be white a few seconds later.
(Read more about fabricules)
If you're into the subject, take a look at Self-Cleaning Sportswear and Polymer Film Sprinkled With Silver Nanoparticles.
From Self-Cleaning Fabrics via Roland.
Scroll down for more stories in the same category. (Story submitted 2/18/2008)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
Foldimate Folds Your Clothes Perfectly
Look ma, my room is clean! I can hear you now.
'Power Clothing' - The Seismic 'Super Suit'
'The real genius in the design is that you don't have to control the suit; you just wear it...' - Robert Heinlein, 1959.
Shiftwear Display Shoes
'He unlaced her shoe and glanced at its readout.' Bruce Sterling, 1988.
Jabil Integrated Textile Heart Monitoring
'Della's first present was an imipolex sweatshirt called a heartshirt…' Rudy Rucker, 1988.
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.
Jaguar I-Pace Audible Vehicle Alert System For EVs
'Of course not a vehicle moved by means of internal explosions of a derivative of rock oil...'
Autonomous 'Fiberbots' Weave Large Structures
'It extrudes material like a spider.'
Birds Aren't Real - Wake Up, California! (With Bird Watching Guide)
'When he had first built them, they had been crude indeed, flying mechanisms with little more than a reflex-response unit.'
Self-Healing Material Pulls Carbon Out Of The Air
'... could seal the punctures.'
IRL Glasses Block Screens, Limit Vision To Real Life
'If you couldn't see the ads, how would you know what was fashionable?'
Testing The Single-Person Spacecraft
'...the lower part of the suit was simply a rigid cylinder.'
Shapeshifting Materials Transform By Light
'Its lines wavered, flowed, and then painfully reformed.'
Fully Automated Farm Iron Ox Hydroponics
'Had these machines in some incredible fashion been provided with brains?'
BrainNet Social Network Of Brains
'I used my implant to tell MILLIE what we wanted and she took care of it'
Phil Nuyttnn's City Under The Sea
'Under the lower roof there was no water, but a clear and luminous atmosphere...'
IONITY Opens First 10 Fast-Charging Stations
'Recharge the batteries... in almost every town and village...'
Superstrong Multilayer Metal-Graphene Composite Material
Negligible increase in weight increased material strength by hundreds of times.
Deepfakes Imperil Democracy (George Orwell, Right Again)
'All history was a palimpsest, scraped clean and reinscribed exactly as often as was necessary.'
String Art Courtesy Of Robot Artist
The number of different ways to span a thread between a larger number of hooks is astronomical.
Still Wondering If You'd Work For A Robot Boss?
'This is all coming to you courtesy of the simstim unit wired into your deck, of course.'
World's First Autonomous Tram In Germany
What's it like for autonomous trams when they're turned off at night?
More SF in the News Stories
More Beyond Technovelgy science news stories