Oil (200g, oxygen oxirane content= 6.8%)
catalyst (5 mol% with respect to epoxy group)
How should I calculate the correct amount of catalyst based on the oxygen oxirane content ?
Dear Jessica Li many thanks for your interesting technical question. Please allow me the friendly remark that you will certainly get more qualified answers if you explain abbreviations which are perhaps not known to every RG member. Although I'm a chemist, I must admit that I am not familiar with this abbreviation. According to the link cited below, OOC can mean anything from "Out of control" to "Orthokeratinized Odontogenic Cyst":
What does OOC stand for?
https://www.abbreviations.com/OOC#google_vignette
Thus I suggest to be a little more specific in your technical question and keep in mind that not everyone is familiar with your ongoing experiments.
All the best and please stay safe and healthy! 👍
Frank T. Edelmann Thank you for the suggestion. The OOC mentioned above is oxygen oxirane content. I've edited the question.
Stay safe !
Dear all, usually it is a very low concentration, around 0.005mol%, because epoxy curing is an autocatalytic process. However, many parameters are involved such as crosslink density (hardness) needed, reaction time. The use of high catalyst concentration produce an uneven and gradient of crosslinking, as the kinetics is fast. Other important factor is the source of heat of polymerization, thermal, light, sound, microwaves, ... My Regards
NB. To Prof. Frank T. Edelmann, the OOC is just the ethylene oxide ring linked to part of the compound.
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