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New Paint Based On Titanium Nanoparticles Creates Self-Cleaning Surfaces
hypnosec writes: Scientists have created a paint that provides self-cleaning surfaces and can maintain them even after being wiped, scratched, or scuffed. The paint, composed of titanium dioxide (TiO2) nanoparticles, is delivered as a suspension in ethanol containing the chemical perfluorooctyltriethoxysilane (abstract). Once the coating is applied to a surface, the ethanol must evaporate for 180 seconds before it is ready for use. Depending on the surface, the coating can be sprayed, dipped, or painted.
Can't wait to spray my kitchen counter-tops with this difficult to pronounce but presumably safe material!
Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
The primary pigment in white paint?
"To those who are overly cautious, everything is impossible. "
So when can I go get a toilet I'll never have to clean ever again?
Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
Everything else always ends up requiring my help, whether it SAYS "self-cleaning" or not.
SJW's don't eliminate discrimination. They just expropriate it for themselves.
cant wait to paint my snowboard.
I can't help but wonder if a decade or generation after this surface treatment becomes widespread we won't be reliving the lead paint or asbestos abatement programs we have today, as these miracle materials start to break down and contaminate the environment with unhealthy nanoparticles.
TiO2 is not the magic ingredient here, I think that's fairly obvious.
It sounds so safe and fully tested, here is an MSDS:
http://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=667420&brand=ALDRICH&PageToGoToURL=http%3A%2F%2Fwww.sigmaaldrich.com%2Fcatalog%2Fproduct%2Faldrich%2F667420%3Flang%3Den
STABILITY AND REACTIVITY
Reactivity: No data available
Possibility of hazardous reactions: No data available
Conditions to avoid: May form explosive mixtures in air. Direct sources of heat..
TOXICOLOGICAL INFORMATION
Acute toxicity: No data available
Inhalation: No data available
Dermal: No data available
Skin corrosion/irritation: No data available
Serious eye damage/eye irritation: No data available
Respiratory or skin sensitisation: No data available
Germ cell mutagenicity: No data available
ECOLOGICAL INFORMATION
Toxicity: No data available
Persistence and degradability: No data available
Bioaccumulative potential: No data available
Mobility in soil: No data available
What could go wrong with all the NO DATA? /sarcasm
the ethanol must evaporate for 180 seconds
I can only wait for 179 seconds. This stuff is useless for me.
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For many years you can buy windows or window glass with this nano-particle titanium dioxide applied which made windows self cleaning. It sounds like the paint is just an extension of the earlier technology. Besides, which is harder to clean: your counter top or the outside of a half-dozen windows three stories up on your house? Sure, some windows are easy to clean because either the frames tllt inwards or are removable from inside, but not having to bother to do any cleaning sounds best to me
In a time of universal deceit, telling the truth is a revolutionary act. George Orwell
Ethanol? Will I be able to paint this on myself without a license? This is not a water based paint here.
As the oldest of 5 children, one thought came to mind. How well does it stand up to crayons? I would assume from the hydrophobic nature it will have no problems with water based markers, though I am curious on how well it handles Sharpies and other solvent based ones.
This is the same idea, but applied to breaking down CO2.
I prefer the "u" in honour as it seems to be missing these days.
But then again, at the beginning, so was asbestos.
As Mary Poppins....
This sounds like Cerakote but using titanium instead of ceramic particles
Cerakote and other powder coat paint products are generally used on firearms, car parts, knives, etc.
If they can figure optically clear and at least some durability it could revolutionize cars and planes by makeing self cleaning self wiping windscreens.
Do not look at laser with remaining good eye.
AFAIK, FDTS is already used to coat MEMS-like devices (e..g, microfluid channels and nano-lithography stamps) because it chemically forms a monolayer coating that is lubricating and moisture resistant. Unfortunately, it is a bit nasty as it is highly corrosive, flammable chemical that smells a bit like hydrochloric acid.
The interesting thing with this is that they found a way to coat titanium dioxide nanoparticles (the same stuff in sunblock and some white paints) with it and create a suspension in ethanol so you can apply it like paint over an adhesive and it drys in a way that sticks to the adhesive in a way that they claim to be somewhat robust against damage. Here's the video and some supplementary material...
I'm not exactly sure how the adhesive (basically claimed to use "evo-stick" apparently some ethyl-acetate based adhesive like superglue available in the UK) sticks to the coated nanoparticles, but still is lubricating on the other side though (a similar problem with non-stick frying pans). There doesn't appear to be much discussion about this and my chemistry-fu is a bit rusty... Maybe some kind of covalent layer bonding or something...
Sure glad they have those subtitles so we can understand whatever language that guy is speaking.
I wonder how well this will work on my tube socks.... My tube socks that I play softball in of course.
This is Exactly what the new Sex Robot Sex Hotels in Japan needs desperately ... how to clean up after the mess.
Ha ha.
First minute of powder metallurgy 101 - asbestos, why it kills people and how your finely divided stuff can kill you too unless you take steps to make sure it does not. Thus everyone who works in this sort of "nano" research is very aware of the issue you seem to think they are not aware of.
Just because there is not a peer-reviewed paper on this specific material and application does not mean it is unknown to science and mankind.
I wonder what the commercial scientists who actually made this stuff think about these guys. Ultimately, this is probably a good thing for the actual inventors as maybe more people will buy their stuff.
This material (titanium oxide nanoparticles with perfluorooctyltriethoxysilane) is already commercialized and used in cosmetics. The authors make a point that these materials are commercially available. They're commercially available because someone else developed them specifically for creating self-cleaning super-hydrophobic coatings, found customers, opened a factory in Brazil, and started distributing the material out of New Jersey. So... this is not exactly cutting edge.
Can you buy an ethanol based suspension at Walgreens? No, but you can buy an expensive face cream based on this material at Walgreens. It hardly seems surprising that a material that is known to be (and advertised as) super-hydrophobic, super-oleophobic and rub-resistant can be suspended in ethanol and painted on a surface.
So why don't we see this stuff everywhere? Because it's crazy expensive to make, it doesn't deal with high temperatures so well, and it's opaque. It's used in more than just cosmetics, but it doesn't have the right properties for a lot of consumer focused applications.
http://bostinno.streetwise.co/2015/03/05/dunkin-donuts-to-remove-titanium-dioxide-from-its-powdered-sugar/
This is the same stuff Dunkin Donuts just took out of their food. Scary
Causes cancer, imagine that and someone stated to put this on their Kitchen counter tops....lmao!
This uses POTS, not FDTS, so there are ethoxy groups instead of chlorine atoms bound to the silicon. Still flammable, but POTS is innocuous enough that it's used to coat pigment particles in cosmetics.
I suspect even FDTS gets a lot less nasty once a coating settles in. R1-Si-Cl + H-O-R2 -> R1-Si-O-R2 + HCl, the HCl escapes as a gas and the rest stays put, covalently bonded to the surface.
...when you're writing a game...tweak the difficulty of "Easy" to something [your mother] can cope with. -- onion2k