【摘要】 采用纳米二氧化钛对聚丙烯酸酯乳液共聚浆料（NA）进行改性，制备了系列TiO₂/NA纳米复合聚丙烯酸酯乳液共聚浆料TNA,并对其性能进行了探讨。研究结果表明，在纳米TiO₂用量占NA浆料固含量不超过2.5%的范围内，NA浆料及TNA浆料的溶液均属于假塑性流体，且随着纳米TiO₂用量的增加，TNA浆料的乳胶粒子直径及其溶液表观粘度均呈递减趋势，而对涤棉（T/C:65/35）混纺纱线的粘附力则呈现先增加再降低的变化趋势；采用综合性能最优的TNA浆料溶液对13tex涤棉（T/C:65/35）混纺纱线上浆，在上浆率明显降低的情况下，TNA浆料的各项浆纱性能依然优于工厂实际浆纱生产配方。研究结果表明，TNA浆料具有调浆简单、上浆率低、浆纱性能优异与退浆废水易于治理的特点。更多还原

【Abstract】 This study modified polyacrylate latex copolymer（NA） by incorporating nano titanium dioxide, resulting in a series of nanocomposite TiO₂/NA latex copolymer emulsions（TNA）. The rheological properties of the solutions and the spinning performance of the pastes were investigated. The results show that within the range where the amount of nano TiO₂ accounts for ≤2.5% of the solid content of the NA paste, both the NA paste and TNA paste solutions exhibit pseudoplastic behavior. Furthermore, with an increase in the amount of nano TiO₂, the particle diameter of the latex and the apparent viscosity of the TNA paste solution decrease. When a TNA paste solution, prepared with 2% nano TiO₂ of the solid content of the NA paste, was used for sizing 13 tex polyester-cotton（TC: 65/35） blended yarn, the sizing rate decreased significantly, yet the various sizing properties of the TNA paste remained superior to those of the actual factory sizing formulation. These results indicate that the prepared TNA paste exhibits simple sizing adjustment, low sizing rate, excellent spinning properties, and easy treatment of desizing wastewater.更多还原