陈全,姚娜,钟曼丽,孙清清,章莉娟

• 1:华南理工大学化学与化工学院

摘要(Abstract)：

采用喷雾干燥法制备pH敏感聚合物Eudragit E100(EPO)包载磷酸氢二钾的微球,硬脂酸镁的加入能有效改善微球的硬度和释放性能。微球响应环境pH的变化,控制磷酸氢二钾的释放速率,从而可用于调节酸性废水的pH值。研究了配方组成和制备工艺对微球粒径、形貌的影响,确定载体材料EPO与硬脂酸镁质量比为35:65;喷雾干燥工艺条件是:进样温度120℃,进样液浓度3%,进样量5 mL·min-1。考察了微球对pH=3的酸性水的控制效果,在1 h内溶液pH迅速增加到6.8,在4 h后降到5左右,并能在相当长的时间保持该pH不变。

关键词(KeyWords)： pH敏感微球;Eudragit E100;酸性废水;喷雾干燥法;控制释放

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(91434125);; 中央高校自主科研项目(2014ZP0050)

作者(Author): 陈全,姚娜,钟曼丽,孙清清,章莉娟

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