撞击流-旋转填料床制备丙烯酰胺反相乳液及其稳定性研究

doi:10.13218/j.cnki.csdc.2015.04.004

摘要/Abstract

摘要： 以撞击流-旋转填料床为乳化设备,煤油为有机介质,山梨醇酐油酸酯(Span 80)和烷基酚聚氧乙烯醚(OP-10)为复配乳化剂制备了丙烯酰胺反相乳液,研究了超重力因子、撞击速度、油水体积比、乳化剂质量分数、复配乳化剂HLB值以及丙烯酰胺单体质量分数对乳液稳定性的影响,并与搅拌式乳化装置进行了对比研究。结果表明:在超重力因子为65.32,撞击速度为12.58 m/s,V(油相)∶V(水相)=1∶1,乳化剂质量占乳液总质量的5%,复配乳化剂HLB值为6.0,丙烯酰胺单体质量占单体水溶液总质量的15%的条件下,所制备乳液平均粒径为664 nm,稳定性系数达0.973;对比研究发现,采用撞击流-旋转填料床制备的乳液稳定性好,粒径小,分散均匀,乳化时间短,为连续化制乳过程。

关键词: 丙烯酰胺反相乳液, 撞击流-旋转填料床, 稳定性

Abstract: Acrylamide inverse-phase emulsion was prepared with kerosene as organic medium,sorbitan monooleate (Span 80) and alkylphenol polyoxyethylene ether (OP-10) as blended emulsifier,as well as impinging stream-rotating packed bed reactor as emulsification equipment.Effect of super gravity factor,impinging speed,volume ratio of oil to water,mass fraction of emulsifier,HLB value of the blended emulsifier and mass fraction of acrylamide monomer content on stability of the emulsion was studied.Comparison was made with that obtained with stirring emulsification device.Results showed that at the conditions of 65.32 super gravity factor;12.58 m/s impinging speed;1∶1 volume ratio of oil to water;5% mass fraction of emulsifier in total emulsion;6.0 HLB value of the blended emulsifier and mass fraction 15% of acrylamide monomer in water solution,the average emulsion particle size of the emulsion achieves 664 nm,and stability coefficient can achieve 0.973.Comparison study showed that stability,particle size and dispersion of emulsion prepared with impinging stream-rotating packed bed reactor is better,emulsification time is shorter,and the preparation process of the emulsion is continuous.

Key words: acrylamide inverse-phase emulsion, impinging stream-rotating packed bed, stability

中图分类号:

O648.2+3

李小月, 张巧玲, 李磊, 魏冰, 刘有智. 撞击流-旋转填料床制备丙烯酰胺反相乳液及其稳定性研究[J]. 日用化学工业, 2015, 45(4): 196-200.

LI Xiao-yue, ZHANG Qiao-ling, LI Lei, WEI Bing, LIU You-zhi. Preparation and stability of acrylamide inverse-phase emulsion with impinging stream-rotating packed bed reactor[J]. China Surfactant Detergent & Cosmetics, 2015, 45(4): 196-200.

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