UV-固化聚氨酯丙烯酸脂的结构与性能的关系研究

Study on relationships between structures of UV-curable polyurethane acrylates and their properties

研究了不同含量的活性稀释剂对聚氨酯丙烯酸脂的硬段类型、柔段类型、柔段长度的影响 .用YJW -IPDI所得的PUA比用YJW -TDT所得的PUA有较好的柔段和硬段相分离 。

Effects of hard segment type, soft segment type, soft segment length at various levels of reactive diluent have been studied in polyurethane acrylates. YJW-IPDI-based PUA gave better soft segment and hard segment phase separation as compared with YJW-TDI-based one, and gave cleaner phase separation. They have a notable difference in dynamic mechanical properties.