Research and Production of VAE Lotion with High Ethylene Content
With polyvinyl alcohol(PVA1788,PVA0588)as protective colloid,vinyl acetate and ethylene as monomers,VAE lotion with different ethylene contents were prepared by redox method.The effects of raw materials,polymerization process,reaction conditions and feeding methods on the ethylene content,solid content,viscosity,glass transition temper-ature and relative molecular weight of VAE lotion were studied,and the effects of modified PVA on the water resistance of VAE lotion were investigated.The results showed that the optimal initial reaction temperature was 65℃,the later reac-tion temperature was 70℃～85℃,the optimal emulsifier content was 4％,the optimal amount of initiator was 2.5％,and the ethylene content of VAE lotion was 9％～23％.Using hydrophobic modified PVA instead of some protective colloid,the water resistance of lotion was significantly improved.
vinyl acetateethyleneVAE lotion with high ethylene contentmodified PVA
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