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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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膜乳化法制备均一聚苯乙烯多孔微球
DOI: 10.3969/j.issn.1671-7627.2009.06.015, PP. 68-72
Keywords: 膜乳化,单分散,多孔微球,过程参数
Abstract:
为了解决用传统方法制备微球粒径不均的缺点，实验使用自制的膜乳化装置，通过膜乳化法制备粒径在12~20μm、单分散系数小于20%的聚苯乙烯多孔微球.使用扫描电镜考察多孔微球的表面形貌及孔径.结果表明：膜孔径是影响微球粒径的决定性因素；适当的膜乳化压力、乳化剂和分散剂浓度是生产粒径均一微球的重要条件；在致孔剂dbp质量分数为20%时，微球的平均孔径为0.12μm.
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