摘要
以亲油性的TiO2和Fe3O4为显示颗粒,SDS,span80为乳化剂,变压器油为分散介质,卵磷脂为分散剂,制备了分散性良好的悬浮液。以上述悬浮液为囊芯材料,明胶-阿拉伯树胶为壁材,采用复合凝聚法制备了磁性微胶囊。实验发现,卵磷脂对多相囊芯的稳定和乳化有促进作用,滴酸速度、搅拌速度、SDS及卵磷脂的量影响微胶囊大小及成壁,TiO2和Fe3O4不同质量比影响显示效果。
Using lipophilic TiO2 and Fe3O4 as display particles,SDS,span80 as emulsifier and transformer oil as dispersion medium,lecithin as dispersant,homodispersed suspension was prepared.Magnetic microcapsules containing the suspension as the core material and gelatin-arabic gum as the wall were prepared by the complex coacervation.The experiment shows that lecithin promotes the muti-phase core material stable and easy emulsification,adding acid rate,stirring speed and the mass of SDS and lecithin influence the size and the wall of the microcapsule,and different mass ratio of TiO2 and Fe3O4 has impact on the display effect.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2011年第4期601-604,共4页
Journal of Functional Materials
基金
国家自然科学基金资助项目(60778042)
国家高技术研究发展计划(863计划)资助项目(2007DP020001)
