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Aqueous polyacrylate/poly(silicone‐ co ‐acrylate) emulsion coated fertilizers for slow nutrient‐release application
Author(s) -
Shen Yazhen,
Du Changwen,
Zhou Jianmin
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40369
Subject(s) - vinyltriethoxysilane , miniemulsion , acrylate , silicone , polymer chemistry , emulsion polymerization , materials science , emulsion , aqueous solution , methyl methacrylate , methacrylate , chemical engineering , polymerization , chemistry , organic chemistry , polymer , composite material , monomer , silane , engineering
Waterborne polyacrylate/poly(silicone‐ co ‐acrylate) emulsions were synthesized to develop coated fertilizers. The effects of the n ‐butyl acrylate (BA)/methyl methacrylate (MMA) ratio, vinyltriethoxysilane, and synthesis method on the water resistance, glass‐transition temperature, mechanical properties, and nutrient‐release profiles were investigated. The results show that miniemulsion polymerization with a BA/MMA ratio of 55:45 was the most suitable for slow nutrient‐release applications. Under these conditions, the preliminary solubility rate of the nutrient was about 3%, and the 30‐day cumulative nutrient release was 15% at 25°C. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40369.