Thin coating type thermal insulation coating and preparation method thereof

Abstract

The invention provides a thin coating type thermal insulation coating and preparation method thereof, wherein the thin coating type thermal insulation coating is prepared from, by weight, 25%-30% of hollow glass bead powder, 2%-4% of nanoscale crystal whisker powder, 10%-20% of polyacrylic acid resin emulsion adhesive, 1%-2% of ethylene glycol monobutyl ether coalescing agent, 2%-4% of acrylic ester thickening agent, 2%-4% of sigma-A8311 defoaming agent, 2%-4% of acrylic ester carboxylate dispersing agent, 1%-3% of natural pigment, 10%-15% of rutile titanium dioxide, and the balance deionizedwater. After the thermal insulation coating is coated, a uniform, compact and wearable thin film with a thickness of two millimeters can be formed, the drying time needed by the thin film is short, the defects of crack, internal gaps and the like can not appear after the solidification of the thin film, the thin film has strong washability and changeable temperature endurance, the cracking elongation is large, the defects are overcome that the segregation of existing thermal insulation coating easily appears, after coating, the thin film can not be firmly stuck to a base layer, and the durability is poor.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a thin coating thermal insulation coating and a preparation method thereof. Background technique [0002] Traditional thermal insulation coatings mostly use pulp fiber, perlite, calcium silicate powder, expanded polystyrene, and expanded polyurethane as the main insulation materials. These materials have low mechanical strength, resulting in low elongation at break and low The scrubbing property is poor, and the thickness of the coating generally needs to reach 20-50mm to play the role of waterproof and heat preservation. Such a thick coating takes a long time to dry, has poor decorative effects, and has single functions, and is prone to defects such as cracks and internal voids after curing, resulting in poor thermal insulation effect, short effective life, and single function (no waterproof, sound insulation, etc.). The invention patent with application number CN200510120766....

AI Technical Summary

Problems solved by technology

However, in this thermal insulation coating, the hollow glass microspheres have poor wettability with water, not only difficult to disperse in the coating, but also very easy to segregate during storage. After coating, they are not firmly adhered to the base layer and have poor durability.

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