【摘要】 目的 提高烯基琥珀酸酐（ASA）在纸张施胶中的疏水效果，对阳离子淀粉乳化ASA乳液粒径的工艺优化进行研究。方法 采用内烯烃和顺丁烯二酸酐通过烯反应（Alder-ene）制备出ASA，通过红外光谱及核磁共振氢谱进行表征分析，确定ASA的成功合成。使用阳离子淀粉作为乳化剂与ASA进行结合使用，并使用Mastersizer 3000对淀粉温度、乳化时间、淀粉pH、淀粉黏度、阳离子淀粉与ASA的乳化比例以及乳液的放置时间等因素对ASA乳液粒径大小及其稳定性进行研究。结果 使用阳离子淀粉乳化ASA的最佳工艺：淀粉温度为40～50℃、乳化时间为3 min、淀粉pH=4、淀粉黏度为1 200～1 600 mPa·s、乳化比例为2∶1，将获得体系稳定的ASA乳液进行应用。结论 通过阳离子淀粉对ASA乳化工艺的调整，ASA施胶后的Cobb值（49.6 g/m2）较市售产品降低了28.5%，显著提升了纸张疏水性能。更多还原

【Abstract】 To improve the hydrophobic effect of allyl succinic anhydride(ASA) in paper sizing, the work aims to study the process optimization of cationic starch emulsified ASA emulsion particle size. ASA was prepared with internal olefins and maleic anhydride through an ene reaction(Alder-ene) and characterized by infrared spectroscopy and nuclear magnetic resonance hydrogen spectrum analysis to confirm successful synthesis. Cationic starch, used as an emulsifier, was combined with ASA, and the Mastersizer 3000 was employed to investigate factors such as starch temperature, emulsification time, starch pH, starch viscosity, emulsification ratio of cationic starch to ASA, and emulsion storage time on ASA emulsion particle size and stability. The optimal emulsification process for ASA with cationic starch was found to be starch temperature 40-50°C, emulsification time 3 minutes, starch pH=4, starch viscosity 1 200-1 600 mPa·s and emulsification ratio 2∶1, resulting in a stable ASA emulsion system. By adjusting the emulsification process of ASA with cationic starch, the Cobb value(49.6 g/m2) after ASA sizing is reduced by 28.5% compared to commercial products, significantly enhancing the hydrophobic performance of the paper.更多还原