Talk:Wetting
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Wow, this article as-is blows, but I don't understand what wetting is enough to fill it in more. :(
-DavidWeekly
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[edit] Cold welding
Would it be safe to say that wetting is a liquid equivalent of cold welding in that both occur when the surface of one material bonds to that of the other chemically rather than simply being pressed next to eachother? —BenFrantzDale 17:08, 5 December 2005 (UTC)
[edit] Needs editing
citing: "If the surface is high energy, it will want to be covered with a liquid because this interface will lower its energy, and so on."
As for the first clause, what does this mean - "If the surface is high energy". Furthermore, how does this follow: "... it will want to be covered with a liquid because..."? Since when do surfaces have minds of their own? How does a surface want something?
[edit] Re: Needs editing
It is common to say that any object "wants" something if it lowers it's energy. Objects do not have minds, but that's just a simple way of expressing the effect of lowering enery.
Ivopeters 08:24, 24 May 2007 (UTC)
[edit] Re: Needs editing
Given that the contact angle is the angle between the tangent to the surface of the liquid at the point where all three phases meet and the surface of the solid (as denoted by θc in Figure 4 of the article). I'm a little confused by the following excerpt from the article:
When a contact line advances, covering more of the surface with liquid, the contact angle is increased...A receding interface likewise has a contact angle that is reduced...
Wouldn't the contact angle decrease as the contact line advances, and the contact angle increase as the contact line recedes? Currently, I don't have access to the referenced material, so I can't check for the explanation.
--Jgrunschel (talk) 07:05, 21 January 2008 (UTC)
