- Joined
- Jun 3, 2002
- Messages
- 24
quote:
Originally posted by BOBISTHEOILGUY:
As I am seeing this, The surface can only hold additives but to layer the additives with a base oil on top of it(attracted not just coating it) then it would defeat the purpose of the additives as a barrier lube(among other things).
umm... ok, just a bit more, I promise to make it easy though:
The Mo ion is one of the more "fun" ions that O-chemists like to play with. It, along with some other Group B heavy metals, are capable of unholy levels of ionization (i.e. +6!!!) The more charged the ion becomes, the greater the chance of a chemical bond forming... and yes, when they DO form they are VERY strong. What we're talking about here is the binding energy of an ion.
The difficult trick is to remove enough electrons without forming bonds to regaents you DON'T want in the molecule... which would give you unwanted by-products. A good chemist/procedure is almost always judged by how efficient his process is, and how pure his final product is.
Check out some blank tapes some time in the supermarket and you'll see the massive dependance we have on heavy metals in making things happen. The VERY best tapes out there are made with metals that reach a +6 final design. Cromium (Cr) is another favorite metal for this use... and looks good on wheels too
big deal right? well... since Mo can be ionized so well (if done in the right series of reactions and purification) it can bind REALLY well with the other chemical groups in the molecule. This strong binding makes for short bonds, and a smaller and denser molecule... picture a ball bearing... which has nearly non-polar chains on the outside of it so it stays in solution (and doesn't settle out like a polar or charged Mo ion would
Having double bonds in a nutral metal-alkoid (the final Mo-containging molecule wouldn't be charged, but may be a bit polar) is always a good way to interact with other metals as well.
The organic chains keep it soluable, the thiocarbonates and the strong Mo bonding give it a slight polar nature to interact with the metal-crystaline structure of the cylinder walls, bearings, etc...
but that's just my best guess.
[ June 27, 2002, 05:00 AM: Message edited by: Steve in Seattle ]