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Water-Based Coatings for Building Part I: Preparation and Physical Properties of Polyacrylate-Siloxane Emulsion

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Abstract:

This study is to report the synthesis of polyacrylate-siloxane latex with vinyl triethoxysilane(DB-151), methyl methacrylate(MMA) acrylic acid(AA), butyl acrylate(BA) by emulsion copolymerization and characterized by FTIR. The physical properties are also analysized by water absorption, pencil hardness, circle adhesion method, etc.. The polymerization factors for emulsion had been discussed in several aspects. The results showed that the optimal conditions for synthesizing silicone-acrylate emulsion were of DB -151content of 6%~8%, emulsifier OP-10/SDS/ DNS-458 ratio:2/1/1, in stirring rate 450 r/min in the period of disperse and emulsification, stirring rate 200 r/min in the period of synthesis, with reaction temperature 75°C.

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Periodical:

Applied Mechanics and Materials (Volumes 174-177)

Pages:

520-523

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.174-177.520

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Online since:

May 2012

Authors:

Pei Wang, Xia Zhen Zhang, Li Na Heng, Teng Yu, Xie Wei Chen, Lian Liu

Keywords:

Acrylic Emulsion, Chemical Modification, Organic Siloxane, Waterborne Coatings

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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