木质素的预处理及在酚醛树脂中的应用进展

Pretreatment of Lignin and Its Application in Phenolic Resin

木质素是一种具有活性基团的天然高分子,可以在一定条件下替代苯酚合成酚醛树脂。为了进一步提高木质素的替代率,在反应前对木质素进行预处理,得到的产物在反应活性上有所提高,可用于酚醛树脂各类材料中。

Lignin is a natural polymer with active groups,which can replace phenol to synthesize phenolic resin under certain conditions.In order to further improve the substitution rate of lignin,the lignin was pretreated before the reaction,and the reaction activity of the product was improved,which could be used in various phenolic resin materials.