A kind of water-based environmental protection thermal insulation coating and preparation method thereof

Abstract

The invention provides an aqueous environment-friendly heat insulation dope and a preparation method thereof. The dope comprises the following components by mass percent: 24-38% of acrylic emulsion, 12-18% of deionized water, 14-25% of styrene-acrylic emulsion, 14-30% of hollow glass, 4-5% of titanium dioxide, 3.2-4.8% of nano rubber powder, 1-2 % of diatomite, 0.5-0.9% of wetting agent, 0.2-0.6% of aerogel, 0.3-0.5% of a defoaming agent, 0.1-0.4% of a thickening agent and 0.5-1% of an anti-freezing agent. The preparation method comprises the following steps of: adding the aerogel, the wetting agent, the acrylic emulsion ad the styrene-acrylic emulsion in sequence in the deionized water to uniformly mix; secondly, adding the diatomite and the titanium dioxide to uniformly mix; and thirdly, adding remaining ingredients in sequence to uniformly mix to reach a uniform thick paste state and obtain an aqueous environment-friendly heat insulation dope finished-product. The dope has the advantages of good heat insulation, sound insulation, water resistance, acid resistance and alkali resistance, is easy to coat on surfaces of inner and outer walls of buildings and form effective heat insulation layers, in particular has good reflection function when being coated on the outer walls, and meanwhile is simple in preparation process, low in cost and suitable for scale production.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to a water-based environmentally friendly thermal insulation coating and a preparation method thereof which can be applied to buildings or industrial storage tanks (such as oil tanks). technical background [0002] The composition of general thermal insulation materials is characterized by blocking the external heat of objects, and is mainly used in the construction industry. As a building material, it should not only have the function of thermal insulation, but also have the functions of sound insulation, mildew resistance and condensation prevention. [0003] In addition, the raw materials for making thermal insulation coatings are generally selected from materials with relatively low thermal conductivity. However, in actual use, the thermal conductivity of raw materials is not low. Therefore, it is one of the commonly used means to make raw materials into hollow foam...

AI Technical Summary

Problems solved by technology

These organic thermal insulation materials all have a raw material foaming production process, which makes the finished product relatively large in size, which brings inconvenience to large-scale construction.

Also because most molding materials are produced in large sizes, the waste phenomenon in construction is also very serious, and at the same time there is a hidden danger of fire. Once a fire occurs, it has the disadvantage of increasing the fire.

Others are either traditional inorganic thermal insulation coatings. Generally, the coating is thicker, up to 3-4cm. These inorganic thermal insulation coatings have poor adhesion and water resistance, and the construction is more complicated, so it is difficult to be widely promoted.

[0005] In addition, at present, domestic architectural coatings mainly consider aspects such as aesthetics, aging resistance, and anti-contamination, and there are still relatively few coatings with thermal insulation functions.

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