Abstract:
A waterborne polyurethane dispersions (PUD) containing SO3Na group was synthesized by prepolymerization process with PBA3000, IPDI, EDA as raw materials and home-made aliphatic diamine sulphonate as hydrophilic chain extender. The results indicated that the solid content of the dispersions (43. 66%) was higher than that of waterborne polyurethane containing COO- group, their stability was over 6 months, and their properties were superior to these of waterborne polyurethane containing COO- group.
Key words:
waterborne polyurethane,
prepolymerization,
sulfonate-base,
dispersions
摘要： 以聚己二酸丁二醇酯二醇、异佛尔酮二异氰酸酯、乙二胺为原料，由自制的乙二胺基乙磺酸钠为亲水性扩链剂，采用预聚体法合成磺酸型水性聚氨酯分散液。研究发现，磺酸型水性聚氨酯分散液固含量高（43.66%），稳定性大于 6个月，且性能优于羧酸型水性聚氨酯分散液。
关键词:
水性聚氨酯,
预聚体法,
磺酸型,
分散液
Kang Pingping, Song Wensheng, Hui Jinkai, Chen Wei, Yan Runjuan. Preparation and Property of Sulfonated Waterborne Polyurethane Dispersions[J]. Paint & Coatings Industry, 2010, 40(8): 52-55.
康平平１, 宋文生２, 回金楷１, 陈 伟１, 闫润娟１. 磺酸型水性聚氨酯分散液的合成与性能[J]. 涂料工业, 2010, 40(8): 52-55.