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OALib Journal期刊
ISSN: 2333-9721
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w/o/w复相乳液法合成多元氮丙啶/聚酯微胶囊的研究及表征
Keywords: 有机高分子材料,微胶囊,聚酯,多元氮丙啶,复相乳液法
Abstract:
？通过w/o/w型复相乳液法合成制备多元氮丙啶(xama--7)/聚酯交联控制型微胶囊,对合成过程及工艺参数的影响进行了研究,研究发现:溶剂蒸发速率太高会导致微胶囊表面皱缩和多孔,溶剂在2小时蒸发完全时得到的微胶囊表面硬化速率均匀;低表面自由能的聚酯对形成微胶囊有利,其值为34.5mj/m2时可以制得完整包覆的微胶囊;胶体稳定剂用量为2.5%时可以得到具有中空结构的规整球形微胶囊;壁心质量比对所制备的微胶囊形态和囊心含量具有重要的影响,壁心质量比为50%:50%的微胶囊球形规整且壁厚均匀,囊心含量约为22%;通过扫描电镜和红外光谱对微胶囊形貌和组成进行表征,结果证明微胶囊呈中空结构且壁厚均匀,聚酯对多元氮丙啶(xama--7)形成包覆,xama--7分布于微胶囊的中心区域。
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