中文摘要：

以纯化的碱木质素和季铵盐型3-氯-2-羟丙基三甲基氯化铵（CHPTMAC）为原料，通过醚化反应合成木质素阳离子表面活性剂。通过对产品表面张力、氮含量和溶解性能的分析，研究了阳离子醚化剂用量、碱与阳离子醚化剂的摩尔比、反应温度和反应时间等对产品性能的影响。结果表明：合成阳离子表面活性剂的适宜条件为CHPTMAC质量摩尔浓度为4mol／kg，碱与阳离子醚化剂的摩尔比为1．3，反应温度50℃，反应时间4h；在此条件下合成的产品的表面张力为42．9mN／m，氮含量为2．53％；在不同pH时阳离子表面活性剂均具有较好的溶解性能。

英文摘要：

：Cationic lignin surfactant was synthesized by reacting alkali lignin with quaternary ammonium salt 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride （CHPTMAC）. The effects of CHPTMAC dosage, NaOH dosage, reaction temperature and reaction time on the surface activity, nitrogen content and solubility of cationic lignin surfactants were studied. The results showed that the suitable synthesis conditions of cationic lignin surfactant were as follows： the dosage of quaternary ammonium salt （CHPTMAC） was 4 mol/kg, the molar ratio of NaOH to quaternary ammonium salt agent was 1.3, reaction temperature was 50 ℃, and reaction time was 4 h. Synthesized cationic lignin surfactant had good solubility under different pH value, nitrogen content and surface tension of the surfactant were 2.53% and 42. 9 mN/m, respectively.