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首页> 外文期刊>Journal of Applied Polymer Science >Emulsification in Batch Emulsion Polymerization
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Emulsification in Batch Emulsion Polymerization

机译：分批乳液聚合中的乳化

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Dispersion of liquid-liquid systems is often applied in industrial processes such as extraction,suspension,and emulsion polymerization.The influence of emulsification of the monomer in the aqueous phase on the course and outcome of the batch emulsion polymerization of styrene has been studied.A visual criterion was applied for determining the lowest impeller speed for sufficient emulsification (N~*).It appeared that in polymerization experiments under the same conditions,N~* was the critical value above which no further increase in polymerization rate was observed.Using a turbine impeller instead of a pitched blade impeller as using a larger impeller diameter provides better emulsification at constant power input.The results indicate that scale-up with constant impeller tip speed is most appropriate in case of turbine impeller.
机译：液-液体系的分散体常用于萃取，悬浮和乳液聚合等工业过程中。研究了单体在水相中的乳化对苯乙烯间歇乳液聚合的过程和结果的影响。目视标准用于确定足够乳化的最低叶轮速度（N〜*）。看来在相同条件下的聚合实验中，N〜*是临界值，高于该值则观察不到聚合速率进一步增加。涡轮叶轮代替变桨叶轮，因为使用更大的叶轮直径在恒定功率输入下具有更好的乳化效果。结果表明，恒定叶轮叶尖速度进行比例放大最适合涡轮叶轮。

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