| Popis: |
In this study, furan bio-resin (PFA) was modified with maleic anhydride (MA) via Deils-Alder reaction. With this reaction, the number of carboxylic groups of the resin is increased and, as a result, its reactivity with polyamine-based curing agent is facilitated. The modification of PFA was performed using various wt% of MA (1, 2, 3, 5, and 15) at 40 °C. Reaction kinetic of different samples was studied using FTIR spectroscopy. The results showed that PFA modified with 1, 2, and 3 wt% of MA can be cured using 30 wt% polyamine curing agent. Higher amount of MA (5 and 15 wt%) remains intact and unreacted in the systems which is not suitable for modification. |
