以聚乙二醇二丙烯酸酯为壁材的防晒微胶囊的制备及性能表征  

Fabrication and characterization of suncream microcapsules encapsulated by poly( ethylene glycol) diacrylate

作　　者：刘天群 赵迪[1] 李雪婷[1] 康园园 鲁希华[1,2] 邱高[2] LIU Tian-qun;ZHAO Di;LI Xue-ting;KANG Yuan-yuan;LU Xi-hua;QIU Gao(College of Chemistry,Chemical Engineering and Biotechnology,Donghua University,Shanghai 201620,China;State Key Laboratory-for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,I）onghua Universily,Shanghai 201620,China)

机构地区：[1]东华大学化学化工与生物工程学院,上海201620 [2]东华大学材料科学与工程学院纤维材料改性国家重点实验室,上海201620

出　　处：《应用化工》2018年第6期1075-1079,共5页Applied Chemical Industry

基　　金：国家自然科学基金(51473032;51503034)

摘　　要：采用自由基界面聚合法,以聚乙二醇二丙烯酸酯(PEGDA 200)为壁材单体,过氧化二苯甲酰(BPO)为引发剂,紫外线吸收剂胡莫柳酯(HMS)为芯材,制备具有防晒功能的微胶囊。通过扫描电镜、激光粒度分析仪和傅里叶红外光谱分别对微胶囊的形貌、粒径分布和化学组成等进行表征。结果表明,在优化的反应条件下,制备的微胶囊为光滑的球形,包覆率达96.8%,平均粒径11.7μm。通过UV-2000S紫外线透过率分析仪测试其SPF值,证明微胶囊化的胡莫柳酯的防晒效果有明显提高。Sunscreen microcapsule was prepared by interfacial free-radical polymerization,with poly（ ethylene glycol） diacrylate（ PEGDA） as shell material and homosalate（ HMS）,a commonly known UV absorber,as core materials. Scanning electron microscope,laser particle size analyzer and fourier transform infrared spectroscopy（ FTIR） were used to characterize the morphology,particle size distribution and chemical composition of as prepared microcapsules. Under the optimized condition the as prepared microcapsules had a spherical morphology and high encapsulation efficiency with a mean particle size of 11. 7 μm. Moreover,the SPF of the encapsulated HMS was confirmed by subjecting the microcapsulesbased creams to the UV transmittance analyzer UV-2000 S,and microcapsules showed obviously higher SPF compared to HMS.

关 键 词：聚乙二醇二丙烯酸酯 防晒微胶囊 胡莫柳酯 SPF 

分 类 号：TQ016[化学工程] TQ03