【摘要】 为制备超低VOCs的水性聚氨酯-丙烯酸酯复合胶粘剂（WPUA），采用甲基丙烯酸甲酯部分替代丙酮降低合成过程中聚氨酯预聚物的黏度，并在分散体中共聚改性，以提升胶粘剂性能。对真空旋蒸过程建立传质方程进行计算分析并优化，探究转速、体积、温度对传质的影响。研究结果表明：（1）合成的WPUA胶粘剂在ABS板和钢板上分别具有2.57 N/mm和2.81 N/mm的180°剥离强度；同时ABS样条进行的搭接剪切强度测试也具有3.364 MPa的拉伸剪切强度，对于其他基材也具有较好的粘接性能。以上表明，WPUA胶粘剂在多种实际应用场景中具有广泛的适用性。（2）真空旋蒸过程中，升温与汽提的协同作用可以显著增强VOCs的脱除效率，经差值法测定和气相色谱分析，VOCs含量低于10 g/L，远低于市售产品。剪切强度与市售产品相当，但剥离强度则明显更高。（3）本研究合成的新型水性聚氨酯胶粘剂具有优异的粘接性能和极低的VOCs含量。更多还原

【Abstract】 In order to prepare waterborne polyurethane-acrylate composite adhesive(WPUA) with ultra-low VOCs,methyl methacrylate was partially used instead of acetone to reduce the viscosity of polyurethane prepolymer during the synthesis process,and co-modified in the dispersion to improve the adhesive performance. The mass transfer equation for the vacuum rotary evaporation process was established,analyzed computationally,and optimized to investigate the effects of rotation speed,volume,and temperature on mass transfer.The research results showed that,(1) The synthesized WPUA adhesive had 180° peel strength of 2.57 N/mm and 2.81 N/mm on ABS board and steel plate,respectively. At the same time,the lap shear strength test conducted on ABS spline also showed tensile shear strength of 3.364 MPa,which had good bonding performance on other substrates.The above indicated that WPUA adhesive had a wide range of applicability in various practical application scenarios.(2) During the vacuum rotary evaporation process,the synergistic effect of heating and steam stripping could significantly enhance the removal efficiency of VOCs.According to the difference method and gas chromatography analysis,the VOCs content was less than 10 g/L,far lower than that of commercially available products.The shear strength was equivalent to that of commercially available products,but the peel strength was significantly higher.(3) The new waterborne polyurethane adhesive synthesized in this study had excellent bonding performance and extremely low VOCs content.更多还原