Preparation and Characterization of Polysiloxane/Polyacrylate Based Emulsion Under Microwave Irradiation
MA Li1, HUANG Jianjian1, HE Hui2, YANG Bo2, JIA Demin2, GUO Dongjie1, CHEN Baoyuan3
1 College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001,China 2 School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640,China 3 Henan Zhongbao Technology Co., Ltd., Zhengzhou 450002, China
Abstract: Emulsion polymerization assisted by microwave irradiation (MI) owns many advantages such as high yield and energy/time saving. By using MI technique, polysiloxane/polyacrylate based emulsoid particles with evident core-shell structure was prepared via semi-continuous seeded emulsion polymerization. A silane coupling agent of 3-methylacryl oxypropyltriisopropoxysilane (C-1757) was employed to affect structure and properties of the emulsoid particles. Related physiochemical techniques including transmission electron microscopy, size distribution analyzer and thermogravimetric analysis were used to characterize the morphology and size distribution of the emulsoid particles, and the thermal stability of the resultant emulsoid film. It was concluded that, the emulsoid particles are made of polysiloxane cores coated by polyacrylate shells, their average size is smaller than 100 nm; with increasing the amount of coupling agent, the mean size of the emulsoid particles increases, and its distribution narrows; the water uptake of the prepared emulsoid film decreases, while its mechanical and thermal stability properties get potently improved.
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2021, Vol. 35 
