Environmental protection type nanometer silica/polyacrylate composite-base aqueous varnish and preparation method thereof

The present invention relates to an inorganic/organic composite-base aqueous varnish and a preparation method thereof, particularly to an environmental protection type nanometer silica/polyacrylate composite-base aqueous varnish and a preparation method thereof. The environmental protection type nanometer silica/polyacrylate composite-base aqueous varnish is prepared from the following raw materials, by weight: 0.5-2.5 parts of a reinforcing agent nanometer silica, 65-98 parts of more than two acrylic acid monomers, 1.2-2.6 parts of an initiator, 5-15 parts of an emulsifying agent, 0.3-1.0 part of a defoaming agent, 0.5-1.5 parts of a curing agent, and 145-210 parts of deionized water. The environmental protection type nanometer silica/polyacrylate composite-base aqueous varnish has characteristics of no pollution, good printability, strong adhesion, high gloss and fast drying.