Modified polyurethane coating with self- healing function
In a new study, a modified polyurethane coating with self-healing function was developed via reaction between polytetrahydrofuran (PTMG), 2,4-toluene diisocyanate (TDI) and α-lipoic acid.
The coating was characterised by SEM and FTIR. The protection of the prepared coating for copper in a 3 wt.% NaCl solution was investigated by electrochemical measurements and surface self-healing tests. The coating has stable protection from corrosion of the copper substrate in a corrosive medium and shows a good self-healing ability. The healing behaviour in morphology and corrosion resistance can be observed when heated above 60 °C.
The study has been published in Journal of Coatings Technology and Research, Volume 20, issue 2, March 2023
https://link.springer.com/journal/11998/volumes-and-issues/20-2
