优化预聚体聚合反应条件,用正交设计方法研究了反应条件对预聚体特性粘数的影响.结果表明,在反应时间60 min、溶液pH=9.0、温度75℃和脲甲醛摩尔比1:1.75条件下,合成的预聚体特性粘数达到1.5以上.以具有不同特性粘数的预聚体为单体,酞菁蓝BGS(PB 15:3)均匀分散在四氯乙烯(TCE)中的悬浮液为核材料,制备蓝色电子墨水微胶囊,研究了电子墨水微胶囊的性能与预聚体特性粘数关系.结果表明,随着预聚体特性粘数增大,所制备微胶囊的平均粒径减小,机械强度增大,表面粗糙程度降低.用优化条件制备的蓝色电子墨水,其中的微胶囊颗粒表现出良好的可逆移动特征.
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