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Preparation of styrene‐acrylic emulsion by using nano‐SiO~2~ as seeds by Dr Faai Zhang; Yunpu Wang; Chunpeng Chai is a Materials Science article available to read on EtoBox.

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## Abstract A styrene‐acrylic/SiO~2~ nanoparticle composite emulsion was prepared by using SiO~2~ nanoparticles as seeds. The effect of factors such as the level of nano‐SiO~2~, reaction temperature and ultrasound treatment of nano‐SiO~2~ on the stability of the polymerization reaction was investigated. Water‐resistance of the emulsion was measured. The level of nano‐SiO~2~ in the emulsion was determined by inductively coupled plasma (ICP) spectrometry. The particle morphology of the emulsion with nano‐SiO~2~ was observed with transmission electron microscopy (TEM). The kinetics of the polymerization was also studied at various temperatures and various levels of nano‐SiO~2~. They showed that the level of nano‐SiO~2~ and reaction temperature had a great influence on the monomer conversion, particle size, coagulum content and viscosity of the emulsion. Nano‐SiO~2~ treated by ultrasonics can increase the coagulum content greatly, but it does not improve the water resistance of the emulsion. The level of nano‐SiO~2~ in the emulsion was lower than the theoretical value. The reaction kinetics indicated that the level of nano‐SiO~2~ had less influence on the reaction rate than the reactio

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Author

Dr Faai Zhang; Yunpu Wang; Chunpeng Chai

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0959-8103)

Published

2004

Language

EN

Field

Materials Science (Physical Sciences)