Talk:Lubricant

message: Someone needs to mention Superlubricity. Jawed 04:46, 7 Feb 2005 (UTC)
thread_title:  Superlubricity? 

message: "In developed nations, lubricants contribute to nearly 1/4 of total pollution released to environment."  That can't be right.  We need a source or clarification of that statment.
Carax 16:13, 23 July 2005 (UTC)
thread_title:  Lubricants as pollutants 

message: It looks like one to me, at least at high temps. StuRat 05:11, 9 August 2005 (UTC)
replies: text: Like many materials, grease melts when hot and freezes when cold.  But at room temperature grease is a thixotropic power-law fluid.  See: Grease (lubricant).  —Ryanrs 12:06, 17 February 2006 (UTC)
thread_title:  Grease isn't a liquid ? 

message: I've put a cleanup tag on the article. It particularly refers to the intoductory section, which needs a complete rewrite as it contains several errors.
The lubricant may form a dispersion, disperses some wear products originating from the contacting surfaces, but does not dissolve much of them, although it might dissolve some.
Vaseline is cited as a tyical petroleum based lubricant. It is stated, that it dissolves petroleum products: rubber is a natural product, comes from the rubber tree. Petroleum based lubricants are designed such that their interaction with rubber/plastic seals is minimal.
What do we mean by a water based lubricant? These are cited as dissolving dirt: what dirt? inorganic contaminants, such as abrasive atmospheric dust, mainly silicates and aluminates do not dissolve in water.
Lubricants do not necessarily interact chemically with the contacting surfaces: in hydrodynamic lubrication the viscosity of the lubricant is capable of keeping the moving surfaces apart.
The statement "The lubricant must be replaced when it has dissolved to saturation" does not make sense. As very little solution takes place there is no saturation: Lubricating oils are replaced when there are too much abrasive contaminants in them, or as in the case of motor oils when the oil, through oxidation looses its ability to lubricate, because its Viscosity Index has dropped significantly and some of its components have partially dehydrogenated/oxidised and created coke particles which abrade instead of lubricating.
The last sentence does not appear to make much sense to me either.
LouisBB (talk) 05:01, 23 May 2008 (UTC)
thread_title: Cleanup tag

message: Lubricants are supposed to help in the reduction of friction between particles during compression and between the compressed tablet and die wall during the ejection cycle.Lubricants also increase the density of particle bed before compression and equalise the is distribution in the compressed tablets.  —Preceding unsigned comment added by 122.168.249.219 (talk) 19:03, 3 February 2010 (UTC)
thread_title:  LUBRICANTS DEFINITION 

message: Should Heat Capacity be added to the list of properties of a lubricant?
194.176.105.139 (talk) 11:48, 18 August 2014 (UTC)
thread_title:  Heat Capacity 

message: First, what is "horological lubricant"?
Also, I would like to know why "personal lubricant" is under the heading "other motors"...actually, I don't want to know. 74.98.216.253 (talk) 19:03, 12 February 2017 (UTC)
thread_title:  Wait, what? 

message: Yes, seriously?  — Preceding unsigned comment added by 2A01:119F:21D:7900:ED5E:B45:24A2:7F89 (talk) 18:23, 3 November 2017 (UTC)
thread_title:  No mention of cubing? 

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thread_title:  External links modified