Heat-insulating water paint and production process thereof
A technology of hot water and deionized water, applied in coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve the problems of high cost and poor storage stability, and achieve the effect of high strength and simple production process
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[0039] (1) Preparation of surface-modified fly ash floating beads: dissolve the emulsifier in deionized water, stir to dissolve completely, and obtain a high-concentration emulsifier solution; then slowly add fly ash floating beads, and stir at a low speed to obtain surface modified Sexual fly ash floating beads.
[0040] (2) Pre-mixing: Add deionized water, substrate wetting agent, rheological additive, dispersant, defoamer and other functional additives into the dispersion kettle, and stir at a speed of 500-1000 rpm for 10-20 Minutes to form a uniform colloidal solution;
[0041] (3) Stirring and mixing: adding surface-modified fly ash floating beads to the above colloidal solution, and dispersing at a low speed of 60-80 rpm for 30-60 minutes to make a uniform slurry;
[0042] (4) Paint mixing: add silicon-acrylic emulsion and film-forming aid to the above slurry, stir evenly, and finally add thickening aid, stir evenly;
[0043] (5) Testing and packaging.
Embodiment 1
[0045] A kind of thermal insulation paint, comprising the following components by weight: 30% of silicon acrylic emulsion, 35% of fly ash bleaching beads, 15% of emulsifier, 2.5% of film-forming aid, 0.4% of dispersant, substrate Wetting agent 0.75%, defoamer 0.3%, rheology additive 1%, thickening additive 0.3%, deionized water 14.75%.
[0046] The silicone-acrylic emulsion is a conventional silicone-acrylic emulsion used in architectural coatings, with a solid content of 45% to 50% and a glass transition temperature of 25°C.
[0047] The fly ash floating beads are hollow glass microspheres whose density is lower than that of water in the fly ash, and are one of the fly ash bead-shaped particles recovered from the flue gas of thermal power plants. They are named for their ability to float on water.
[0048] The emulsifier is a combination of sodium dodecylbenzenesulfonate and sodium oleate.
[0049]The film-forming aid is alcohol ester twelve.
[0050] The dispersant is sodi...
Embodiment 2
[0061] A kind of heat-insulating paint, comprising the following components by weight: 25% of silicon acrylic emulsion, 40% of fly ash bleaching beads, 20% of emulsifier, 2% of film-forming aid, 0.3% of dispersant, substrate Wetting agent 0.5%, defoamer 0.1%, rheology additive 0.5%, thickening additive 0.1%, deionized water 11.5%.
[0062] The silicone-acrylic emulsion is a conventional silicone-acrylic emulsion used in architectural coatings, with a solid content of 45% to 50% and a glass transition temperature of 25°C.
[0063] The fly ash floating beads are hollow glass microspheres whose density is lower than that of water in the fly ash, and are one of the fly ash bead-shaped particles recovered from the flue gas of thermal power plants. They are named for their ability to float on water.
[0064] The emulsifier is a combination of sodium dodecylsulfonate and sodium oleate.
[0065] The film-forming aid is alcohol ester twelve.
[0066] The dispersant is sodium tripolyp...
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