采用硬脂胺改性的方法改善酞菁绿G颗粒与四氯乙烯液体的亲和性,获得了分散性能良好的悬浮液,有效地抑制了包囊过程中颗粒向水相中的转移.以此悬浮液为囊芯(多相),以脲甲醛树脂为壁材,用原位聚合方法制备了绿色电子墨水微胶囊.根据颜料颗粒的表观密度,控制囊芯中固体颗粒的体积分数研究发现,油溶性乳化剂对多相囊芯的稳定和乳化有促进作用,且对壁材的沉积没有副作用;在微囊化过程中,预聚体首先发生缩聚生成树脂微粒,然后进一步在囊芯周围沉积形成微胶囊;经硬脂胺改性的酞菁绿G颗粒在电场下有一定的不可逆响应行为.
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