【摘要】 根据前文导出的理论公式研究了界面缩聚法中单体用量、乳化剂用量、乳化时间及反应时间对微型胶囊渗透性能的影响规律。实验结果表明,所导出的公式不仅适用于含非水溶性芯料的微型胶囊,也适用于含水溶性芯料的微型胶囊;在实验范围内,微型胶囊渗透性常数随着单体用量比的变化出现一个极小值,随着乳化剂用量的增加出现一个极大值;乳化时间延长,微型胶囊的渗透性常数减小;反应时间延长,微型胶囊的渗透性常数也减小。更多还原

【Abstract】 The influence of the amount of monomer, the amount of emulsifier, emulsifying time, and reaction time on the permeability of microcapsulcs prepared by interracial polycondensation was studied on the basis of the equitions suggested in our previus paper. The results indicated that the equations were not only applicable to microcapsules containing water insoluble core material, but also applicable to microcapsules containing water soluble core material. Under the experimental conditions, there was a minimum permeability constant at a certain monomer ratio, and a maximum in the curve of permeability constant vs. the amount of emulsifier. The permeability constant decreased with the increase of emulsifying time and reaction time.更多还原