Multifunctional waterborne color-adjustable reflective heat-insulation coating and preparation method thereof

The invention relates to the field of waterborne architectural decorative coatings, and particularly, relates to a multifunctional waterborne color-adjustable reflective heat-insulation coating and a preparation method thereof. The coating is mainly prepared from the following raw materials in parts by weight: 10.7-19.6 parts of water, 0.2-0.5 part of a thickener, 0.1-0.2 part of a multifunctional auxiliary agent, 0.2-0.7 part of a dispersing agent, 0.2-0.4 part of a wetting agent, 1-6 parts of titanium dioxide, 7-16 parts of an infrared reflective pigment, 1-3 parts of hollow glass micro-beads, 20-33 parts of a packing, 30-40 parts of a polymer emulsion, 2-5 parts of an opaque polymer, 0.5-1.5 parts of a film-forming auxiliary agent, 0.5-2 parts of an antifreezing agent, 0.2-0.6 part of a defoaming agent, 0.1-0.2 part of a bactericide, 0.1-0.2 part of a mildew preventive, 0.1-0.2 part of an adhesion enhancer, and 0.1-0.3 part of an anti-scrubbing enhancer. The coating has the advantages of excellent heat-insulation reflection performance, diverse colors, low cost and simple construction technology.