摘要
利用界面聚合的方法 ,以聚氨酯为皮材将香精包覆于其中制备了芳香微胶囊 .采用显微摄影的方法来观察微胶囊的结构及分散性 ,采用焙烘的方法研究微胶囊囊壁的密封性 .文中讨论了微胶囊的性能及其影响因素 。
Using polyurethane(PU) as the outer membrane,the fragrant microcapsules(MC) are prepared by a interfacial polycondensation method.The dispersivity and structure of MC are observed with microphotography.The permeability of MC outer membrane is described approximately by baking process and the quantitative evaluation by Index of Permeability (IP) is put forward by the author.In this paper the properties of MC and factors affecting them are discussed.
出处
《天津工业大学学报》
CAS
2001年第3期13-18,共6页
Journal of Tiangong University
关键词
微胶囊
聚氨酯
界面聚合
香精
渗透性
microcapsule
polyurethane
interfacial polycondensation
essence permeability
