Study on Emulsion Polymerization Process of Compression Molding Polyvinylidene Fluoride
Pei Jian-yun · China Plastics Industry · 2005
The effects of emulsion polymerization process on the property of compression molding polyvinylidene fluoride(PVDF) were studied The results showed that a stable PVDF emulsion with narrow distribution of particle diameter could be prepared by the synergistic action of perfluorooctanoate and paraffin wax The paraffin wax could be reused, and the recovered VDF through gas-liquid separation and drying could be used to the polymerization The technical conditions for the preparation of PVDF by a horizontal 100 L reactor were also determined, ie agitation speed 60 r/min, (NH4)2S2O8 initiator 035 wt‰, chain-transfer agent 60 wt‰, perfluorooctanoate 13 wt‰, paraffin wax 20 wt‰ The property of the prepared product came up to the level of the products of the same type abroad