化工学报2013，Vol.64Issue(7)：2446-2452,7.DOI:10.3969/j.issn.0438-1157.2013.07.019
双重乳液固化速率对PAMS微球球形度的影响
Influence of double emulsions solidification rate on sphericity of poly(α-methyl styrene) capsules in microencapsulation process
摘要
Abstract
To study the influence of solidification rates of double emulsions on the sphericity of the resulting poly(α-methyl styrene)(PAMS) capsules in the microencapsulation process of PAMS capsules,the diffusion rates of fluorobenzene from oil phase to outer water phase under different conditions were experimentally measured,and the curing process of double emulsions under corresponding curing conditions were investigated.The results showed that the concentration of fluorobenzene in the outer water phase had a significant effect on the diffusion rate of fluorobenzene,which directly determined the solidification rate of double emulsions and then the sphericity of the resulting PAMS capsules.During the key phase of the solidification process of double emulsions,keeping proper concentrations of fluorobenzene in the outer water phase could remarkably reduce the solidification rate of double emulsions and consequently improve the sphericity of PAMS capsules.By optimizing the concentration of fluorobenzene in the outer water phase,the batch percentages of PAMS capsules with out-of-round less than 1 μm increased from 1.9 ％ to 30.4 ％.关键词
微封装/双重乳液/PAMS/固化Key words
microencapsulation/ double emulsions/ PAMS/ solidification分类
能源科技引用本文复制引用
陈素芬,刘一杨,苏琳,漆小波,史瑞廷,刘梅芳,张占文,李波..双重乳液固化速率对PAMS微球球形度的影响[J].化工学报,2013,64(7):2446-2452,7.基金项目
中国工程物理研究院科学技术发展基金项目(2010A0302015,2011B0302058) （2010A0302015,2011B0302058）
supported by the Science and Technology Development Foundation of CAEP (2010A0302015,2011B0302058). （2010A0302015,2011B0302058）
