研究了不同壁材浓度的复合凝聚橘油微胶囊在制备过程中的形态变化,并深入探讨了复合凝聚橘油微胶囊的形态、载量对微胶囊释放性质的影响。结果表明:当壁材浓度不超过1%时,复合凝聚橘油微胶囊在整个制备过程中保持球状、多核的结构,否则微胶囊在复合凝聚或凝胶化过程中会产生粘连,最终形态变得不规则;与载量相比,微胶囊的形态对于芯材橘油的释放具有更为显著的影响,制备具有优良控制释放性质的复合凝聚球状多核橘油微胶囊的适宜壁材浓度是1%。

The morphology changes during preparing process of coacervate microcapsules was mainly investigated in the paper.Furthermore,the effect of morphology and loading of microcapsules on the release was extensively discussed.The experimental results showed that when wall material concentration was not more than 1%,coacervate microcapsules remained spherical and multinuclear structure during the whole preparing process.However,the microcapsules accumulated during coacervation and gelation process made the morphology of microcapsules turn irregular.Compared with loading,the effect of morphology of microcapsules on orange oil release was more significant.Overall,with excellent controlled-release characteristics of the coacervate spherical multinuclear microcapsules,the optimum wall material concentration was 1%.