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材料研究学报  2017, Vol. 31 Issue (1): 27-31    DOI: 10.11901/1005.3093.2015.484
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全封闭型茉莉香精微胶囊的制备和表征
宋晓秋(),段玉萍
上海应用技术学院 香料香精技术与工程学院 上海 201418
Preparation and Characterization of Totally Encapsulated Microcapsules of Jasmine Fragrance
Xiaoqiu SONG(),Yuping DUAN
(School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, 201418, China)
引用本文:

宋晓秋,段玉萍. 全封闭型茉莉香精微胶囊的制备和表征[J]. 材料研究学报, 2017, 31(1): 27-31.
Xiaoqiu SONG, Yuping DUAN. Preparation and Characterization of Totally Encapsulated Microcapsules of Jasmine Fragrance[J]. Chinese Journal of Materials Research, 2017, 31(1): 27-31.

全文: PDF(2147 KB)   HTML
摘要: 

采用原位聚合法以有机合成密胺树脂为壁材对茉莉香精进行包覆制备香精微胶囊,并用无机纳米二氧化硅对微胶囊进行表面改性,制备出全封闭型茉莉香精微胶囊。用扫描电镜(SEM)、红外光谱仪、热重分析仪、紫外分光光度计等手段对微胶囊样品的形貌、化学组分、结构、包埋率以及封闭性进行了表征。结果表明,本文制备的全封闭型茉莉香精微胶囊具有单核壳核结构,微胶囊的囊壁具有密闭特性,香精包埋率达到18%。

关键词 无机非金属材料茉莉香精纳米二氧化硅密胺树脂原位聚合法全封闭微胶囊    
Abstract

Totally encapsulated microcapsules of jasmine fragrance were prepared by in situ polymerization with melamine resin as wall material and inorganic nanometer silicon dioxide as surface modifier. The morphology, chemical composition, structure and embedding rate of the prepared microcapsules were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectrometric test, thermo gravimetric analysis (TG-DTG). Results show that the totally encapsulated microcapsules of jasmine fragrance present a core-shell structure with the capsule shell of good tightness and an embedding rate of 18%.

Key wordsinorganic non-metallic materials    Jasmine fragrance    nano silica    melamine resin    in situ polymerization    totally encapsulated microcapsules
收稿日期: 2015-12-18     
基金资助:上海市“联盟计划”(LM201318)
图1  微胶囊、SiO2密胺树脂以及茉莉香精的FT-IR图谱
图2  全封闭型茉莉香精微胶囊样品的扫描电镜照片
图3  热质量损失曲线
图4  茉莉香精乙醇溶液的紫外吸光图谱
图5  茉莉香精乙醇溶液的紫外吸光度-浓度标准曲线
图6  茉莉香精微胶囊的乙醇浸泡液浸泡时间-吸光度关系曲线
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