Reflective insulation waste rock chip natural stone exterior paint

Abstract

The invention relates to a reflective insulation type waste rock fragment natural stone exterior wall paint which is prepared from waste rock fragments, an aqueous emulsion, an inorganic adhesive, wood fibers, polypropylene short fibers, a film coalescing aid and a water raw material, wherein the waste rock fragments in the raw materials are leftovers of stones of a mine and stone fragments generated in a stone processing process. The exterior wall paint not only can be used for saving a lot of stone resources and reducing the consumption of stone resources, but also has a perfect real-stone texture and further has the characteristics of light weight, various specifications and colors, safety, environmental friendliness, never fading and the like. Meanwhile, the exterior wall paint has a reflective insulation function, so that the exterior wall paint can be used for effectively reducing absorption of solar radiant heat by a building, preventing temperature rise caused by solar radiant heat absorbed on the surface of the building and reducing introduction of heat indoors, and can maintain efficient thermal reflectivity of a surface layer for a long time, so that the requirements on heat insulation and heat control as well as energy conservation and consumption reduction of the exterior wall of the building are satisfied.

Description

technical field [0001] The invention belongs to the technical field of building wall decoration materials, and relates to a reflective and heat-insulating waste rock debris natural stone exterior wall paint suitable for exterior wall decoration. Background technique [0002] At present, with the rapid development of my country's architecture and exterior wall decoration, exterior wall decoration is also an important aspect of saving energy and improving the living environment. For buildings, building thermal insulation and energy saving is one of the key points of my country's energy conservation work, and external thermal insulation of external walls has become the leading product of building energy conservation. With the development of the construction industry and the requirements of urban beautification, the decoration and energy saving of exterior walls are increasingly showing its importance. There are also higher and higher requirements for wall decoration materials,...

AI Technical Summary

Problems solved by technology

With the in-depth development of my country's building energy-saving work, many types of wall decoration materials are emerging. At present, various exterior wall coatings and real stone paints are usually used for the exterior wall finishing materials of building walls. The problems of wall decoration are: fading, cracking, water seepage and other phenomena are prone to occur, and the service life is short, generally 3 to 5 years

[0003] 1. Peeling: The paint film contains gravel particles with a large self-weight, and the film thickness is much thicker than that of ordinary latex paint. It often occurs that the real stone paint film does not adhere firmly to the wall surface and has local peeling phenomenon

[0004] 2. Whitening in case of rainwater: After soaking in rainwater for 2 hours, the traditional real stone paint will undergo milk saponification effect. After the sun comes out, the saponified white emulsion will be sealed in the paint film emulsion, resulting in partial whitening of the paint film and affecting the decorative effect.

[0005] 3. Yellowing due to sun exposure: traditional real stone paint emulsions (such as styrene-acrylic, acrylic emulsions) contain a large number of benzene rings, which produce a color effect after being exposed to the sun, that is, the benzene rings are decomposed by light and turn yellow, which affects the decorative effect again.

[0006] 4. Cracking: The texture of real stone paint is hard, but hard is not tough. With the cracking of the base layer of the wall, part of the paint film of real stone paint is also cracked, which is extremely unfavorable to the decorative effect of the wall.

[0007] 5. Pollution: Although the traditional real stone paint has a strong sense of quality, due to its own composition characteristics, the surface of the real stone paint film is relatively rough, and it has an uneven feel after drying, which leads to easy dust accumulation, vacuuming, and sticking. Dust and other pollution, not easy to clean

Especially for the cleaning and maintenance of high-rise buildings, it is very difficult and the operation is extremely unsafe

[0008] 6. Fading: Traditional real stone paint is often made of pigment sintered sand, which will fade under long-term light

[0009] From the above analysis, it can be seen that buildings with paint or real stone paint finishes are unsatisfactory due to many problems such as durability, stain resistance, crack resistance, and environmental impact. Also do not have the energy-saving effect of heat insulation, for this reason, seeking and researching a kind of practical effect that can utilize existing energy source to reach heat insulation, energy saving and consumption reduction, and the wall decoration novel coating that has development prospect again has become current The primary research and development topic of many thermal insulation material factories

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