Study On Preparation And Performance Of Water-based Matt Glaze Overprint Vanish

Along with the people environmental protection consciousness gradually increase and increasingly stringent environmental regulation,environmental protection ofchemical products and health has become one of the most important subject of humanity in this century.Therefore,non-toxic,non-polluting water-based solvent printing gloss oil products,will replace the solvent oil polish products which could caused air pollution.And acrylic ester emulsion polymer that used water as dispersion medium had the advantages of non-toxic,noninflammability,sources,water resistance,weather resistance,chemical resistance,oxidation resistance,abrasion resistance,etc.It is widely used inoverprint varnish in recent years.At the same time,more advanced products rely more on imports to meet domestic market.Firstly,high polymer resin was synthesized as one of the major components of glazing oil in this pape.According to the experimental results,dosage of emulsifier,dosage of initiator,monomer ratio on the performance of pure acrylic emulsion were confirm.When the dosage of emulsifier is 4%,dosage of initiator is 0.4%,with methyl methacrylate(mma),butyl acrylate ratio is 1.1 : 1,the cationic starch as emulsifier,dosage of monomer is 60% of the total consumption by semi-continuous direct and polymerization method to carry on the emulsion polymerization,the emulsion of the best comprehensive performance.Secondly,film-forming additives content affect the minimum film-forming temperature of latex,the latex particle size is smaller,the lower the minimum film-forming temperature,wetting agent,defoamer,flow ping agent to join can dramatically improve the film forming emulsion.During the preparation of light oil system of acrylic resin can improve the stability of the emulsion and water resistance and hardness of the coating.The early it is advisable to stir speed to 250 r/min,it isadvisable to late to 150 r/min,reaction temperature at 80-80 ? advisable.