Timeline for How does acetone "rejuvenate" PEI?
Current License: CC BY-SA 4.0
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| Apr 20, 2019 at 22:31 | comment | added | Mark Harrison | TIL, there's a chemistry stack exchange! | |
| Apr 20, 2019 at 20:16 | comment | added | anttix | @mark-harrison unfortunately GE does not specify what happens to polyethermide when it's attacked by ketones, they only list the failure mode after immersion which is rupture. My wild guess is that this is due to loss of molecular mass. PEI molecule does contain a methyl group (CH3) so acetone may be able to eventually break that away from the molecule.I'm not a chemist though and I am really grasping at straws here. This is probably a question for chemistry.stackexchange.com | |
| Apr 20, 2019 at 18:20 | comment | added | Mark Harrison | Excellent reference. Your last point is the one I'm trying to understand in more detail. What physical or chemical change takes place that makes the PEI brittle? This is more for intellectual knowledge than for practical considerations, of course. | |
| Apr 18, 2019 at 16:39 | vote | accept | Mark Harrison | ||
| Apr 18, 2019 at 4:55 | history | edited | anttix | CC BY-SA 4.0 |
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| Apr 18, 2019 at 4:41 | history | edited | anttix | CC BY-SA 4.0 |
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| Apr 18, 2019 at 4:36 | history | answered | anttix | CC BY-SA 4.0 |