阅读说明：本技术 一种水泥基水包水多彩涂料 (Cement-based water-in-water multicolor paint ) 是由 许浒 许敬修 于 2021-02-23 设计创作，主要内容包括：本发明所公开的一种水泥基水包水多彩涂料,由水泥基色粒料浆、保护料浆组成,所述水泥基色粒料浆包括重量份数的：水泥30～70份、集料20～70份、颜料0.6～5份、聚合物乳液或可再分散聚合物胶粉与水的混合胶液6～40份、水5～40份。显著优势：耐久、耐候性能极其优异。经全气候老化试验2160h,性能仍然与水泥砂浆相同,甚至提高,而现有产品仅达到1000h。兼具水泥超高耐久性与聚合物的柔性。综合性能优。显著抑制泛碱或不泛碱,装饰效果精美。抗酸碱、抗冻融等性能优,成本低,尤其相对于≥50年的建筑寿命而言,数倍降低建筑全寿命周期的维护成本,适用于建筑外墙、内墙、屋面。(The invention discloses a cement-based water-in-water multicolor paint which consists of cement-based granular slurry and protective slurry, wherein the cement-based granular slurry comprises the following components in parts by weight: 30-70 parts of cement, 20-70 parts of aggregate, 0.6-5 parts of pigment, 6-40 parts of mixed glue solution of polymer emulsion or redispersible polymer rubber powder and water, and 5-40 parts of water. The method has the following remarkable advantages: excellent durability and weather resistance. After the full-weather aging test for 2160h, the performance is still the same as that of cement mortar, even improved, and the existing product only reaches 1000 h. Has the advantages of both the ultrahigh durability of cement and the flexibility of polymer. The comprehensive performance is excellent. Obviously inhibit saltpetering or not saltpetering and have exquisite decorative effect. The building has excellent acid and alkali resistance, freeze thawing resistance and other performances, is low in cost, particularly reduces the maintenance cost of the whole life cycle of the building by a plurality of times compared with the building life of more than or equal to 50 years, and is suitable for building outer walls, inner walls and roofs.)

1. A cement-based water-in-water multicolor paint is characterized in that: the coating consists of cement primary color particle slurry and protective slurry, wherein the cement primary color particle slurry comprises the following components in parts by weight: 30-70 parts of cement, 20-70 parts of aggregate, 0.6-5 parts of pigment, 6-40 parts of mixed glue solution of polymer emulsion or redispersible polymer rubber powder and water, and 5-40 parts of water.

2. The cement-based water-in-water multicolor paint of claim 1, wherein: the cement primary color particle slurry also comprises the following components in parts by weight: 5-35 parts of a flame retardant, 0.3-2 parts of fibers, 0-5 parts of an alkali inhibitor, 0.03-1 part of a water reducing agent, 0.5-3% of a dispersing agent, 0.3-1% of a wetting agent, 1-4% of a film forming aid, 0.05-0.3% of a defoaming agent, 1-2% of an antifreezing agent, 0.3-7% of a plasticizer, 0.5-2% of a preservative or a bactericide and 0.3-2% of cellulose.

3. A cement-based water-in-water multicolor paint as claimed in claims 1 and 2, characterized in that: the coating consists of cement base color particle slurry, protective slurry and bridging emulsion, wherein the bridging emulsion comprises the following components in parts by weight: 40-90 parts of polymer emulsion and 10-60 parts of water; in the polymer emulsion, the weight parts of the polymer emulsion comprise 0.5-3% of a dispersant, 0.3-1% of a wetting agent, 1-4% of a film-forming aid, 1-2% of an antifreezing agent, 0.3-7% of a plasticizer and 0.5-2% of a preservative or a bactericide; 0.5-2% of fiber.

4. A cement-based water-in-water multicolor paint as claimed in claims 1 and 2, characterized in that: the cement is one or a mixture of more of sulphoaluminate cement, aluminate cement and silicate cement; the pigment is silanized or non-silanized; the aggregate is silanized or non-silanized aggregate, and specifically comprises the following components: one or a plurality of mixtures of quartz sand of 40 meshes to 320 meshes, sericite powder of 80 meshes to 1200 meshes, crystal whiskers, fly ash floating beads, hollow microspheres or microbeads; the fiber is silanized or non-silanized, and specifically comprises the following components: one or a mixture of a plurality of glass fibers with the length of 2mm to 9mm, basalt fibers with the length of 2mm to 9mm, polypropylene fibers with the length of 3mm to 9mm, polyvinyl alcohol fibers with the length of 3mm to 9mm, polyester fibers with the length of 3mm to 9mm, sepiolite fibers, mineral wool and wood fibers; the polymer emulsion is: one or more of acrylate emulsion (PAE), ethylene-vinyl acetate copolymer Emulsion (EVA), polyvinyl acetate emulsion (PVAc), styrene-acrylic emulsion (SAE), polyvinyl propionate emulsion (PVP), styrene-butadiene latex (SBR) and chloroprene latex (CR); the redispersible polymer rubber powder is rubber powder formed by spray drying the polymer emulsion; the water is tap water, purified water and deionized water; the polymer content of the mixed glue solution of the redispersible polymer glue powder and water is 40-60%; the cellulose is hydroxyethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose.

5. A cement-based water-in-water multicolor paint made according to the method of claim 1 or 2 or 3 or 4.

Technical Field

The invention relates to the technical field of preparation of water-in-water multicolor coatings, in particular to a cement-based water-in-water multicolor coating which realizes chemical interaction by ionic bonds generated by combination of cement and polymers, is interpenetrated by fibers, and has the characteristics of both ultrahigh durability of the cement and flexibility of the polymers, and the characteristics of reaction curing of the cement and the polymers and volatilization curing of emulsion.

Background

The existing water-in-water multicolor paint is prepared by dispersing water-based colored particles in a system formed by water-based film-forming substances, pigments, fillers, water, additives and the like, wherein the fillers do not generate strength due to hydration reaction and hardly generate chemical reaction for enhancing the bonding strength between the fillers and the film-forming substances. In the construction, after the colorful coating is sprayed, the emulsion forms bonding and wrapping on the pigment and the filler in the process of gradually solidifying to form a film along with the volatilization of water, so that colorful particles are formed, and the colorful particles are connected into a whole through the connecting emulsion to form the colorful coating. In this system, the polymer emulsion of organic material is the only material to form and bond the colored particles together, and the short life cycle of the polymer is determined by the organic material itself. Therefore, the durability, weather resistance and other performances of the existing water-in-water multicolor paint are determined by the performances of the polymer emulsion of organic materials, so that the durability and the weather resistance are poor, the artificial weather aging resistant time is only 1000h, and the difference is too large compared with the building service life of more than 50 years.

Disclosure of Invention

The invention aims to solve the technical problem of providing a cement-based water-in-water multicolor paint which realizes chemical interaction by ionic bonds generated by combining cement and polymers, is paved with fibers which are mutually interpenetrated, has the characteristics of dual properties of cement ultra-high durability and polymer flexibility, and dual properties of cement and polymer reaction curing and emulsion volatilization curing, can greatly improve the durability and weather resistance of the paint, is beneficial to ensuring the engineering quality, and has exquisite decorative effect, excellent comprehensive performance and low cost.

The purpose of the invention is realized by the following technical scheme:

a cement-based water-in-water multicolor paint is characterized in that: the coating consists of cement primary color particle slurry and protective slurry, wherein the cement primary color particle slurry comprises the following components in parts by weight: 30-70 parts of cement, 20-70 parts of aggregate, 0.6-5 parts of pigment, 6-40 parts of mixed glue solution of polymer emulsion or redispersible polymer rubber powder and water, and 5-40 parts of water.

The cement primary color particle slurry also comprises the following components in parts by weight: 5-35 parts of a flame retardant, 0.3-2 parts of fibers, 0-5 parts of an alkali inhibitor, 0.03-1 part of a water reducing agent, 0.5-3% of a dispersing agent, 0.3-1% of a wetting agent, 1-4% of a film forming aid, 0.05-0.3% of a defoaming agent, 1-2% of an antifreezing agent, 0.3-7% of a plasticizer, 0.5-2% of a preservative or a bactericide and 0.3-2% of cellulose.

The coating is composed of cement base color particle slurry, protective slurry and bridging emulsion, wherein the bridging emulsion comprises the following components in parts by weight: 40-90 parts of polymer emulsion and 10-60 parts of water; in the polymer emulsion, the weight parts of the polymer emulsion comprise 0.5-3% of a dispersant, 0.3-1% of a wetting agent, 1-4% of a film-forming aid, 1-2% of an antifreezing agent, 0.3-7% of a plasticizer and 0.5-2% of a preservative or a bactericide; 0.5-2% of fiber.

The cement is one or a mixture of more of sulphoaluminate cement, aluminate cement and silicate cement; the pigment is silanized or non-silanized; the aggregate is silanized or non-silanized aggregate, and specifically comprises the following components: one or a plurality of mixtures of quartz sand of 40 meshes to 320 meshes, sericite powder of 80 meshes to 1200 meshes, crystal whiskers, fly ash floating beads, hollow microspheres or microbeads; the fiber is silanized or non-silanized, and specifically comprises the following components: one or a mixture of a plurality of glass fibers with the length of 2mm to 9mm, basalt fibers with the length of 2mm to 9mm, polypropylene fibers with the length of 3mm to 9mm, polyvinyl alcohol fibers with the length of 3mm to 9mm, polyester fibers with the length of 3mm to 9mm, sepiolite fibers, mineral wool and wood fibers; the polymer emulsion is: one or more of acrylate emulsion (PAE), ethylene-vinyl acetate copolymer Emulsion (EVA), polyvinyl acetate emulsion (PVAc), styrene-acrylic emulsion (SAE), polyvinyl propionate emulsion (PVP), styrene-butadiene latex (SBR) and chloroprene latex (CR); the redispersible polymer rubber powder is rubber powder formed by spray drying the polymer emulsion; the water is tap water, purified water and deionized water; the polymer content of the mixed glue solution of the redispersible polymer glue powder and water is 40-60%; the cellulose is hydroxyethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose.

Preferably, the cement is a sulphoaluminate cement.

Preferably, the polymer emulsion is an acrylate emulsion (PAE).

Preferably, the aggregates, fibers, pigments are silanized.

Preferably, the fibers are 6mm length glass fibers.

Preferably, the cellulose is hydroxyethyl cellulose.

A cement-based water-in-water multicolor paint made according to the method of claim 1 or 2 or 3 or 4.

Compared with the prior art, the invention has the following beneficial effects:

excellent durability and weather resistance. After the full-weather aging test for 2160h, the performance of the product is still the same as that of cement mortar, even slightly improved, and the existing product only reaches 500-1000 h. Has both the ultrahigh durability of cement and the flexibility of polymer. The decorative effect is exquisite, the comprehensive performance is excellent, and the cost is low. The cement component is low-alkali sulphoaluminate cement or aluminate cement, and the auxiliary action of the alkali inhibitor is added, so that the efflorescence is obviously inhibited or not at all inhibited, and the exquisite decorative effect is ensured. Excellent comprehensive performance of acid and alkali resistance, freeze thawing resistance and the like. The cement and the polymer jointly generate the function of cementing materials, thereby reducing the material cost, particularly reducing the maintenance cost of the whole life cycle of the building by a plurality of times compared with the building life of more than or equal to 50 years, and the product is suitable for building outer walls, inner walls and roofs.

Detailed Description

In order to make the technical solutions of the present invention more apparent to those skilled in the art, the following examples are given for illustration. It should be noted that the following examples are not intended to limit the scope of the claimed invention.

The starting materials used in the following examples are, unless otherwise specified, either conventionally commercially available or may be obtained by conventionally known methods.

Example one

The cement-based water-in-water multicolor paint comprises the following materials in parts by weight:

cement primary colour granular slurry	Parts by weight
		Flame retardant	10
6mm glass fiber (silanization treatment)	0.3
		Alkali inhibitor	0.5
Water reducing agent	0.3
		Water (W)	17.77
Wetting agent	0.1
		Dispersing agent	0.12
Defoaming agent	0.003
		Film forming aid	0.1
Antifreezing agent	0.13
		Plasticizer	0.08
Preservatives or bactericides	0.1
		Hydroxyethyl cellulose	0.1
Acrylic ester emulsion	16
		Pigment (I)	0.5
Sulphoaluminate cement	40
		800 mesh sericite powder (silanization treatment)	7
120 mesh quartz sand (silanization treatment)	7

The protective slurry adopts the raw materials and the method for preparing the protective slurry of the water-in-water multicolor paint in the prior art.

Example two

On the basis of the first embodiment, the material further comprises the following materials:

bridging emulsions	Parts by weight
		Water (W)	30
Dispersing agent	0.7
		Film forming aid	0.81
Antifreezing agent	0.8
		Wetting agent	0.5
Preservatives or bactericides	0.7
		Plasticizer	0.3
Acrylic ester emulsion	69.5
		6mm glass fiber (silanization treatment)	0.5

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make possible variations and modifications of the present invention without departing from the scope of the present invention, and the appended claims are intended to cover all equivalent embodiments, modifications and equivalents of the present invention. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of protection of the present invention, unless the technical essence of the present invention departs from the content of the technical solution of the present invention.