Exterior wall latex paint

The invention provides an exterior wall latex paint. The exterior wall latex paint is prepared from the following preparation raw materials in parts by weight: 50-150 parts of acrylic resin emulsion;20-28 parts of calcium carbonate; 25-30 parts of modified titanium dioxide powder; 3-5 parts of an antioxidant; 1-3 parts of a humectant; 4-8 parts of a coalescing agent; 10-20 parts of a dispersing agent; and 0.5-5 parts of a defoaming agent. The modified titanium dioxide is prepared by adsorbing nano titanium dioxide on nano titanium dioxide through sodium laurate. According to the exterior walllatex paint of the invention, the nano titanium dioxide is modified and matched with a dispersion system, so that the nano titanium dioxide can be well dispersed in a coating system. 本发明提供一种外墙乳胶漆，所述外墙乳胶漆包括以下重量份数的制备原料：丙烯酸树脂乳液：50份～150份、碳酸钙：20份～28份、改性二氧化钛粉：25份～30份、抗氧剂：3份～5份、保湿剂：1份～3份、成膜助剂：4份～8份、分散剂：10份～20份及消泡剂0.5～5份；其中，所述改性二氧化钛由纳米二氧化钛通过月桂酸钠吸附在纳米二氧化钛进行制备。与现有技术相比，本发明的有益效果在于，纳米二氧化钛经过改性配合分散体系，可以使纳米二氧化钛在涂料体系中分散良好。