The invention relates to drainage phase-
change temperature-regulation heat-insulation
coating and a preparation method thereof. The
coating is characterized by comprising the following components in parts by weight: 30-80 parts of component A, 20-60 parts of component B, 15-40 parts of
titanium dioxide
rutile, 10-25 parts of flyash
cenosphere, 1-10 parts of vacuum
ceramic micro-sphere, 1-5 parts of far-
infrared radiated substance, 0.1-1 part of flash rusting resistant agent, 0.1-0.8 part of
silane coupling agent, and 0.2-2 parts of thickener, wherein the component A is a mixture of 3-10 parts of
polyethylene glycol 800, 1-8 parts of
polyethylene glycol 1000, 1-6 parts of
ceresin wax, 15-35 parts of expanded
perlite, 5-15 parts of kieselguhr, 0.1-0.5 part of JFC, 0.1-0.6 part of
sodium dodecyl sulfate, 0.1-0.3 part of OP-10, and 40-60 parts of deionized water; and the component B is a mixture of 20-50 parts of
silicone-
acrylate emulsion, 10-30 parts of
polyurethane emulsion, 5-20 parts of fluororesin
emulsion, 0.1-0.3 part of film forming assistant, 0.1-0.8 part of flowing deformation assistant and 10-30 parts of deionized water. Based on the
coating of the invention, the preparation method comprises three steps: component A preparation, component B preparation and coating preparation.