使用核磁共振氢谱对不同用量的黑液木质素替代苯酚制备的黑液木质素基酚醛胺固化剂进行测定。黑液木质素基酚醛胺固化剂的制备:黑液木质素、甲醛、二乙烯三胺,温度85℃,时间3h
The lignin-based phenolic amine curing agent prepared by different amounts of lignin-based black liquor replacing phenol was determined by hydrogen magnetic resonance spectroscopy. Preparation of black liquor lignin-based phenolic-amine curing agent: black liquor lignin, formaldehyde, diethylene triamine, temperature 85℃, 3h