Abstract
Hybrid latexes containing ethyl cellulose (EC), vinyl acetate (VAc) and butyl acrylate (BA) were prepared by pre-emulsified semi-continuous seed emulsion polymerization. Influences of some synthetic parameters on the stability of emulsion polymerization were investigated. The emulsion polymerization is optimum with emulsifier 3 wt%, OP-10/ SDS 1/1 and PVA 0.5 g. The emulsion average particle size increases with EC content increase.TGA and water absorption analysis show that EC/ BA / VAc hybrid latexes films containing more BA display better thermal stability and hydrophobicity. The EC/BA/VAc latex shows good biodegradation, flexility property and is suitable for slow-release material of environmental-friendly coated fertilizer.
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