文献类型：期刊文献

中文题名：层状液晶乳液的缓释效应

英文题名：Controlled release from lamellar liquid crystalline emulsions

作者：李学静[1];Christian Quellet[2];Werner Stauch[2];田禾[3]

机构：[1]上海奇华顿有限公司技术部,上海201203;[2]Givaudan Dubendorf Ltd Fragrance Research;[3]华东理工大学精细化工研究所,上海200237

年份：2006

卷号：36

期号：5

起止页码：280

中文期刊名：日用化学工业

外文期刊名：China Surfactant Detergent & Cosmetics

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：非离子表面活性剂;层状液晶;缓释;留香

外文关键词：nonionic surfactant; lamellar liquid crystal （LIC）; controlled release; substantivity

摘要：重点讨论了层状液晶乳液体系在应用到衣物柔顺剂中时其乳液结构及油相的极性对提高挥发性物质长久保留功效的影响。采用固相微萃取和气相色谱/质谱的分析技术,测定了顶空中挥发性物质的浓度随时间的变化,结果发现由聚氧乙烯醚失水山梨醇脂肪酸酯、失水山梨醇脂肪酸酯、长链脂肪醇、油和水组成的水包油型球形洋葱状层状液晶乳液LO1相和水包油型球形洋葱状LO1与平面层状Lβ的混合两相在应用过程中能够最有效地延缓具有低极性的挥发性物质的释放平衡,相反油包水型球形洋葱状层状液晶LO2和平面层状液晶Lβ不能有效地提高挥发性物质任何阶段中在织物上的沉积和保留。
The use of lamellar liquid crystal （LLC） emulsions to improve the substantivity of volatile active substances in fabric softeners was discussed with a special focus on the role of the emulsion structure and polarity of the oil phase on the performance of these systems. Based on headspace profile analysis by solid phase micro- extraction and gas chromatography, and on the time dependence of the headspace concentrations, it is found that globular onion O/W phase Lol and dual - phase of globular onion O/W Lol with planar lamellar Lβ mesophases of Tweens, Spans, long chain alcohols, oils and water, are most effective for the volatile substances with an low polarity in providing an optimal retention to release balance during application. On the contrary, both W/O ＂onion＂ LO2 and Lβ planar mesophases do not improve the substantivity of volatile substances onto fabric at any stage of the application.