Study on preparing vinyl acetate/acrylate emulsion adhesive for aluminum foil/paper lamination

With vinyl acetate(VAc) and butyl acrylate(BA) as main monomers,added small amounts of function monomer acrylic acid(AA) to modified by copolymerization,the emulsion adhesive for aluminum foil-paper lamination was prepared by semi-continuous seed emulsion polymerization.The influences of mass ratio of hard and soft monomer,emulsifier and AA contents on the properties of the adhesive were studied in polymerization process.The results showed that might obtain a comprehensive performances for good peeling strength,fast drying and freeze resistance etc.VAc-BA emulsion adhesive when m(BA)∶m(VAc) was 50∶50-65∶35,the mass fraction of mixed emulsifier was 3%,AA content was between 2% and 3%(relative to total monomer) and APS content was 0.6%.