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Preparation of Porous PMMA/TiO2 Microspheres by Spray Drying Process
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 Title & Authors
Preparation of Porous PMMA/TiO2 Microspheres by Spray Drying Process
Paik, Dong-Hyun; Lee, Hyunsuk; Gang, Rae-Hyoung; Kim, Yong-Jin; Lee, John Hwan; Choi, Sung-Wook;
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 Abstract
Highly porous polymethyl methacrylate (PMMA) microspheres impregnated by powder were prepared by spray drying method. The particle size and the porosity were controlled by optimizing the co-solvent ratio and the polymer concentration. powder was impregnated into the microspheres upto 74.6 wt% content based on the weight of the resultant microspheres. SEM images showed that powder was well distributed throughout the inside of the microsphere. EDX mapping showed that the Ti signal was well detected from every part of the microspheres, which was the evidence of the formation of the composite. Hg porosimetry result showed that the porosity was found to be over 50% regardless of the contents. The final product was found to have high oil-absorbing capacity and great hiding power, both of which are key properties in designing the microsphere materials for make-up cosmetics application.
 Keywords
spray drying;PMMA;;microsphere;make-up;
 Language
Korean
 Cited by
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