In resole synthesis, water is the by-product of synthesis. the solid content of the resin is important for the properties of resole. how we can remove the water from the resole?
Dear Mohammad Yazdi, water is removed by heating under vacuum for maximum of three hours to avoid curing. My Regards
https://doi.org/10.1016/B978-1-4557-3107-7.00002-6
Dear Abdelkader Bouaziz, thanks for your answer.
In the resole synthesis, the formaldehyde is more than the equivalent molar ratio, and in the duration of synthesis, the free formaldehyde exists. by your method, did the formaldehyde removed with the water?
Yes, formaldehyde is a gas, it is expected to be highly volatile.
well with method of heating and vacuum, the formaldehyde is removed and the structure of resole is changed!
- Badges
- Science topic
- Similar topics
- Chemistry