The new polymer quaternary ammonium salt was synthesized from epoxyphenolicresin via ring-opening reaction with aqueous solution of triethylamine hydrochloride.
利用三乙胺盐酸盐与酚醛环氧树脂进行开环反应合成了酚醛环氧树脂季铵盐。
2
Widely used in epoxy and polyimide, such as phenolicresin, can improve the mechanical properties of products.
广泛应用于环氧、聚酰亚胺、酚醛等树脂中，可有效提高制品的机械性能。
3
On the other hand, some thermosetting resins generally did not melt or melted slightly, such as phenolicresin and epoxy resin.