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Water Droplet Bouncing on a Superhydrophobic Nanotube Array

Water Droplet Bouncing on a Superhydrophobic Nanotube Array

Psychologic says...

>> ^COriolanus:

what was the air pressure?


I'm guessing this took place at a relatively normal air pressure. If it were a vacuum then they would need to cool the water below ~0C to keep it from boiling (depending on purity).

Now I want to see what happens when the nanotubes are cold enough to form ice crystals within the droplets.

Water Droplet Bouncing on a Superhydrophobic Nanotube Array

residue says...

I didn't realize things could be SUPERhydrophobic, I thought they were just hydrophobic. Hurry up nanotubes, make me a damn space elevator already

I also would like to see these tests at regular speed

EDD (Member Profile)

Water Droplet Bouncing on a Superhydrophobic Nanotube Array

Drachen_Jager says...

Graphene is essentially the same thing, you could say that nanotubes are tubes made out of graphene. Graphene and nanotubes require the same kind of manufacturing. AFAIK they're farther ahead on developing nanotubes on a large scale than graphene, but any advancements on nanotubes will likely result in a boost to graphene development as well.


>> ^EDD:

>> ^Drachen_Jager:
When they get a process going that can make carbon nanotubes at industrial volumes it will be as significant (if not more) than the development of steel. This is THE materials science breakthrough of our generation.
A 1 mm thick nanotube wire could hold 6,000 KG of weight. It is thirty times stronger than Kevlar and nearly a hundred times stronger than the finest steel.

gnarly. you seem to know your carbon nanotubes, so care to explain how the potential projected practical applications of graphene stack up to them?

Water Droplet Bouncing on a Superhydrophobic Nanotube Array

EDD says...

>> ^Drachen_Jager:

When they get a process going that can make carbon nanotubes at industrial volumes it will be as significant (if not more) than the development of steel. This is THE materials science breakthrough of our generation.
A 1 mm thick nanotube wire could hold 6,000 KG of weight. It is thirty times stronger than Kevlar and nearly a hundred times stronger than the finest steel.


gnarly. you seem to know your carbon nanotubes, so care to explain how the potential projected practical applications of graphene stack up to them?

Water Droplet Bouncing on a Superhydrophobic Nanotube Array

Superhydrophobicity in Nature -- the Lotus Effect

EDD says...

"The Lotus effect refers to the very high water repellency (superhydrophobicity) exhibited by the leaves of the lotus flower (Nelumbo). Dirt particles are picked up by water droplets due to a complex micro- and nanoscopic architecture of the surface which enables minimization of adhesion. The self-cleaning property of superhydrophobic micro-nanostructured surfaces was discovered in the 1970s and has been applied since the 1990s in biomimetic technical products."

via http://en.wikipedia.org/wiki/Lotus_effect

StukaFox (Member Profile)

StukaFox (Member Profile)

Water glides and bounces on new "superhydrophobic" material

Water glides and bounces on new "superhydrophobic" material

Water glides and bounces on new "superhydrophobic" material

water bouncing on superhydrophobic surface



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