CN114410167A

CN114410167A - High-strength high-toughness sand-in-water multicolor paint and preparation method thereof

Info

Publication number: CN114410167A
Application number: CN202210080480.1A
Authority: CN
Inventors: 吴建军; 梁锦辉; 马攀; 陈蔚清; 曾思正
Original assignee: Guangdong Carpoly Science & Technology Material Co ltd; Hebei Carpoly Paint Co ltd
Current assignee: Guangdong Carpoly Science & Technology Material Co ltd; Hebei Carpoly Paint Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-04-29
Anticipated expiration: 2042-01-24
Also published as: CN114410167B

Abstract

The invention discloses a high-strength high-toughness sand-in-water multicolor paint and a preparation method thereof, wherein the sand-in-water multicolor paint comprises the following components in parts by weight: 20-30 parts of colorful protective glue solution, 50-60 parts of color matching base paint and 20-30 parts of colorful continuous phase; the toning base paint comprises the following components in parts by weight: 30-45 parts of solvent, 5-10 parts of protective adhesive, 15-45 parts of first emulsion, 0.5-1.2 parts of cellulose, 10-25 parts of filler, 0.5-1.5 parts of first thickening agent, 22-54.7 parts of functional auxiliary agent and 25-50 parts of quartz sand; the cellulose comprises the following components in parts by weight: 0.3-0.6 part of hydrophobically modified associative cellulose ether and 1.2-1.6 parts of hydrophobically modified hydroxyethyl cellulose; the filler comprises at least one of kaolin, talcum powder, mica powder and Kaitai micro powder; the color points are not easy to break during spraying, the construction is easy, the effect is consistent, and the simulation degree is high.

Description

High-strength high-toughness sand-in-water multicolor paint and preparation method thereof

Technical Field

The invention relates to the technical field of coatings, in particular to a high-strength high-toughness sand-in-water multicolor coating and a preparation method thereof.

Background

The present building paint is a kind of paint with decoration effect similar to marble and granite and is prepared with natural stone powder in different colors. Especially, the decoration on the curved surface building is vivid and lifelike, and has an effect of returning to nature. However, the color difference of the natural color sand as the core raw material is serious, which affects the visual and sensory effects of the stone paint, and the stone paint can simulate the stone effect only by matching different color sands, the maximum particle size of the color sand is 10-20 meshes, so that the stone effect cannot be completely simulated by the stone paint when the simulated stone has larger color points.

Therefore, aiming at the defects of the real stone paint, the sand-in-water multicolor paint is produced, compared with other paints, the sand-in-water multicolor paint has good decoration effect, can highlight the primitive simplicity, elegance and nobility of buildings, and the imitated granite texture is natural, smooth and harmonious, and can be widely used for decoration of indoor and outdoor walls.

The sand-in-water multicolor paint can better imitate the color points of various colors, the sprayed effect is uneven and is more close to the surface effect of the stone, but the spraying needs abundant experience of workers, and the prior sand-in-water multicolor paint has the following specific performances because the existing sand-in-water multicolor paint has insufficient latitude: the spraying air pressure is strictly controlled, the air pressure is too small, the color dots are not easy to flatten, the concave-convex feeling of the color particles is increased, the stone imitation effect is influenced, the consumption is increased, the air pressure is too large, the color dots are easy to break, the whole effect is fuzzy, and the stone imitation effect is poor.

Disclosure of Invention

Aiming at the problems of the existing sand-in-water multicolor paint, the invention provides a high-strength high-toughness sand-in-water multicolor paint which has good latitude and is characterized in that: the color point has high strength and good toughness, the used air pressure range is wide, and the operation of operators with abundant experience is not needed.

The invention provides a high-strength high-toughness sand-in-water multicolor paint which comprises the following components in parts by weight: 20-30 parts of colorful protective glue solution, 50-60 parts of color matching base paint and 20-30 parts of colorful continuous phase;

the toning base paint comprises the following components in parts by weight: 30-45 parts of solvent (such as deionized water), 5-10 parts of protective adhesive (such as S482 solution with the mass fraction of 7%), 15-45 parts of first emulsion (such as waterborne colorful silicone acrylic emulsion RS3799 of Badelujin company), 0.5-1.2 parts of cellulose, 10-25 parts of filler, 0.5-1.5 parts of first thickening agent, 22-54.7 parts of functional additive and 25-50 parts of quartz sand (such as snowflake white quartz sand and 80-120 mesh natural color sand of Jiacheng mining industry);

wherein the cellulose comprises the following components in parts by weight: 0.3-0.6 part of hydrophobically modified associative cellulose ether (such as the hydrophobically modified associative cellulose ether of Acksonobel)

EHM 500) and 1.2 to 1.6 parts of hydrophobically modified hydroxyethyl cellulose (e.g.: hydrophobically modified hydroxyethylcellulose Natrosol HE10K from Askaline corporation) in a mass ratio of 1:3-4 between hydrophobically modified associative cellulose ether and hydrophobically modified hydroxyethylcellulose.

According to the invention, on one hand, after the hydrophobic modified association type cellulose ether is subjected to water phase thickening, molecular chains of the hydrophobic modified association type cellulose ether are unfolded, and hydrophobic groups on the molecular chains are combined with the filler and the first emulsion while water is absorbed and locked, so that a physical crosslinking structure is formed in the toning base paint, and the strength and toughness of color points are increased; on the other hand, more hydrophobic groups are provided on the molecular chain of the hydrophobically modified hydroxyethyl cellulose, and the groups are deeply combined with the filler and the first emulsion and are also mutually jointed and intertwined with the molecular chain groups of the hydrophobically modified associative cellulose ether, so that the toning base paint has stronger strength and flexibility; and finally, a bridge-linked three-dimensional network is formed between the two types of cellulose and the first emulsion, between the two types of cellulose and the filler and between the two types of cellulose functional auxiliary agents, so that the cohesive strength and the toughness of the colored dots are further increased, and the colored dots are not easy to crack.

Preferably, the first thickener comprises the following components in parts by weight: 0.3-0.5 part of hydrophobic alkali swelling thickener (such as hydrophobic modified alkali soluble emulsion thickener ACRYSOL TT-935 of Dow company) and 0.5-1.2 parts of hydrophobic modified strong association high pseudoplasticity amino thickener (such as pectinate hydrophobic modified strong association high pseudoplasticity amino thickener Optiflo TVS of Bike chemistry); the hydrophobic modified strongly-associated high-pseudoplasticity amino thickener has more high-molecular hydrophobic chain end contacts which are connected with the hydrophilic and hydrophobic components of the whole base paint, so that a high-molecular network is formed while the whole system is stabilized, the strength toughness is enhanced, and the prepared colorful paint is adhered to a hard wall surface and is not easy to explode.

Preferably, the multicolor protection glue solution comprises the following components in parts by weight: 90-95 parts of solvent (such as deionized water), 2-10 parts of protective rubber powder (such as special modified synthesized flaky lithium magnesium silicate S-482 in Germany Bike chemistry), 0.1-0.5 part of colorful anti-settling agent (such as modified bentonite OPTIEL WX in Guangzhou breeze chemical industry) and 0.1-0.5 part of cross-linking agent (such as Guangdong vitamin non-ionic WX 199).

Preferably, the protective rubber powder comprises flaky magnesium lithium silicate.

Preferably, the filler comprises at least one of kaolin, talcum powder, mica powder and kaolin micropowder, and preferably a mixture of four.

The filler comprises at least one of kaolin (such as inner Mongolia super-grade calcined kaolin DG80), talcum powder (such as talc CMS-666 in Heshan chemical industry), mica powder (such as Tolypocladium powder GM-900 in Rui mineral industry) and Kaita micropowder (such as Kaita micropowder AB-700 in Aobang), preferably a mixture of 4-5 parts by weight of kaolin, 5-6 parts by weight of talcum powder, 4-6 parts by weight of mica powder and 5-8 parts by weight of Kaita micropowder; the mica powder has viscosity and stripping resistance; the talcum powder is a radial, fibrous and flaky structure aggregate, can intersect with other fillers and polymers, and enhances the strength; the main components of the Kaitai micro powder are silicon dioxide and aluminum oxide, the Kaitai micro powder is composed of particles with the average particle size smaller than 4um and contains 6 wt% of nano particles, the nano particles have rigidity, the strength of the base paint is enhanced, the micro particles can also provide more hydrophobic group binding points, and meanwhile, the Kaitai micro powder has a large specific surface area, not only provides good binding capacity, but also can promote the mesh combination of the emulsion for the scheme, the filler and the auxiliary agent, and the color points are not easy to break through high shearing force.

Preferably, the functional auxiliary agent comprises the following components in parts by weight: 0.1-0.5 part of mildew inhibitor (such as carbendazim from Longsha, a complex of diuron and isothiazolinone Lonzaserve 940), 0.1-2 parts of dispersant (such as Dow's hydrophobically modified polyacrylic ammonium salt dispersant (OROTANTM) CA-2500), 0.1-2 parts of defoaming agent (such as SN-DEFAOAMER NXZ from Corning and/or FoamStar A10 from Corning), 0.1-0.8 part of pH regulator (such as Dow's 2-amino-2-methyl-1-propanol AMP-95), 0.1-0.8 part of film forming auxiliary (such as Easteman's 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate TEXANOL dodecanol ester), 0.5-1.5 parts of antifreezing agent (such as propylene glycol from Itania), 0.5-1.5 parts of bactericide (such as wetting agent: 562) and 0.1 part of multicolor wetting agent (such as ROCK from International Inc.) 0.1-0.4 part, so that the function of the coating is more complete.

Preferably, the multicolored continuous phase comprises the following components in parts by weight: 15-25 parts of solvent (such as deionized water), 0.5-0.8 part of bactericide (such as ROCIMA 562), 0.4-0.7 part of second thickener (such as Dow hydrophobic modified alkali soluble emulsion type thickener ACYSOL TT-935 and Pick chemical comb hydrophobic modified strongly associated high pseudoplasticity amino thickener Optiflo TVS), 0.1-1 part of organic bentonite (such as Shanghai gridding International trade bentonite MZ), 55-70 parts of second emulsion (such as Linn silicone-acrylic emulsion LR7115 and Sho or pure emulsion POLYSOL AP 4765 or a mixture of the two obtained according to the mass ratio of 1:1, preferably a mixture of the two), 3-10 parts of film forming auxiliary agent (such as TeXANOL dodecanol ester of Istman 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate), 5-10 parts of antifreezing agent (such as Jew chemical propylene glycol produced by Jew chemical industry) and 5-10 parts of chemical pH regulator (such as Tao amino acid produced by Itanium corporation 2-2: 10) 2-methyl-1-propanol AMP-95)0.1-0.5 part, so that the function of the coating is more complete; the second emulsion and the hydrophobic modified association type cellulose ether are subjected to association reaction to form a whole, so that the cohesive strength and toughness of the colored dots are further increased, and the colored dots are not easy to crack.

The invention has the beneficial effects that: the cohesive strength and toughness of the color points can be improved by utilizing the reaction, bonding, water retention and coarse deformation characteristics of cellulose on the premise of not increasing the dosage of protective rubber powder; by utilizing the functional characteristics of kaolin, mica powder, talcum powder and Kaitai micro powder, the four fillers are mixed and matched for the first time, so that the strength of the color points is improved; the hydrophobic modified thickener and the amino thickener are used, and all the components are connected to form a polymer network, so that the strength and toughness of the paint can be improved, the paint is not easy to crush in a material pipe during color point spraying, the high shearing resistance of the paint under high air pressure is strong and is not easy to crush, the paint is not easy to crush when being sprayed on a wall and impacted, and the paint has obvious technical and economic benefits.

The invention also discloses a preparation method of the high-strength high-toughness sand-in-water multicolor paint, which comprises the following steps:

preparation of the protective colloid solution

Under the stirring state, adding protective rubber powder, a colorful anti-settling agent and a cross-linking agent into the solvent, and uniformly stirring;

the method specifically comprises the following steps: adding protective rubber powder, a colorful anti-settling agent and a cross-linking agent into the solvent under the stirring of 1300-;

preparation of a tinting base paint

Adding a bactericide, a dispersing agent, a first thickening agent, a filler, a defoaming agent, a pH regulator, a first emulsion, a film-forming auxiliary agent, a multicolor wetting agent, an antifreezing agent, a mildew preventive, a protective adhesive, cellulose and quartz sand into a solvent under the stirring state, and uniformly stirring;

the method specifically comprises the following steps:

(1) adding the bactericide and the dispersant and stirring for 1-2min under stirring at 300-500 r/min;

(2) adding cellulose and stirring for 5-10min under the stirring of 600-;

(3) under the stirring of 700 and 900 revolutions per minute, adding the filler, part of the antifoaming agent and the pH regulator, after the addition is finished, adjusting the rotating speed to 1200 and 1500 revolutions per minute, and stirring for 15-20 min;

(4) sequentially adding the first emulsion, the film forming additive, the multicolor wetting agent, the antifreezing agent, the mildew preventive and the residual defoaming agent under stirring at 1000-;

(5) adding the protective glue under the stirring of 1100-1300 rpm, and stirring for 8-10 min;

(6) 1200-;

(7) adding the snowflake white quartz sand into the mixture under stirring at 1000-.

Preparation of a multicolored continuous phase

Under the stirring state, adding organic bentonite, a second emulsion, a film forming aid, an antifreezing agent, a pH regulator and a second thickening agent into the solvent, and uniformly stirring;

the method specifically comprises the following steps:

(1) adding organic bentonite into the solvent under the stirring of 900-1100 r/min, and stirring for 15-20 min;

(2) sequentially adding the second emulsion, the film forming additive, the antifreezing agent and the pH regulator under stirring at 800-;

(3) under the stirring of 1100 ℃ and 1300 rpm, the thickening agent is slowly added and stirred for 5-10 min.

Preparation of high-strength high-toughness sand-in-water multicolor paint

Dividing the toning base paint and the protective glue solution into a plurality of parts according to the weight ratio of 50-60:20-30, adding the toning base paint in each part into the protective glue solution for granulation to obtain color points with different particle sizes;

and mixing the colored dots with different particle sizes, adding the mixed colored dots into the colorful continuous phase, uniformly stirring and thickening.

The method specifically comprises the following steps:

(1) weighing the colorful protective glue solution, the color mixing base paint and the colorful continuous phase in sequence according to the weight ratio of 20-30:50-60: 20-30;

(2) mixing colors of the mixing color base paint according to the required color, and specifically mixing colors by adopting a color filler;

(3) adding the toning base paint into the colorful protective glue solution for granulation under the stirring of 400-700 r/min, and if the colorful dots with different sizes exist, dividing the toning base paint and the colorful protective glue solution into a plurality of parts according to the proportion and respectively granulating;

(4) under the stirring of 400 revolutions per minute, all the color points are mixed together and stirred uniformly, then the continuous phase is added, after the stirring is uniform, a pH regulator (such as 2-amino-2-methyl-1-propanol AMP-95 in Dow chemical) with the total mass of finish paint of 0.1 wt% and a hydrophobic modified thickener ACRYSOL TT-935 with the total mass of finish paint of 0.2 wt% to 0.4 wt% are added for stirring and thickening, and then a finished product is prepared and is packaged after the detection.

The invention has the beneficial effects that: the preparation method is simple and easy to implement, and the obtained coating has stable performance.

Detailed Description

The examples disclose a high strength and toughness sand-in-water multicolor paint, the components of which are shown in Table 1.

TABLE 1

In example 1: the cellulose comprises 0.3 part

EHM 500 and 1.2 parts Natrosol HE 10K; the thickener in the multi-color continuous phase comprises 0.3 parts ACRYSOL TT-935 and 0.2 parts Optiflo TVS;

in example 2: the cellulose comprises 0.4 part

EHM 500 and 1.4 parts Natrosol HE 10K; the thickener in the multi-color continuous phase comprises 0.3 parts ACRYSOL TT-935 and 0.3 parts Optiflo TVS;

in example 3: the cellulose comprises 0.5 part

EHM 500 and 1.5 parts Natrosol HE 10K; the thickener in the multi-color continuous phase comprises 0.4 parts ACRYSOL TT-935 and 0.2 parts Optiflo TVS;

a preparation method of the sand-in-water multicolor paint with high strength and high toughness in the embodiment 1 comprises the following specific steps:

A. preparation of colorful protective glue solution

(1) Adding deionized water into a suitable container, and starting stirring;

(2) adding protective rubber powder, a colorful anti-settling agent and a cross-linking agent under the stirring of 1300 revolutions per minute, and stirring for 40 min;

(3) and filling the multicolor protection glue solution into a proper container for standby.

B. Preparation of a tinting base paint

(1) Adding deionized water into a proper container, and starting stirring;

(2) uniformly and slowly adding the bactericide and the dispersing agent under stirring at 300 revolutions per minute, and stirring for 1 min;

(3) adding the cellulose thickener and stirring for 5min under stirring at 600 revolutions per minute;

(4) slowly adding various fillers, partial defoaming agent and pH regulator under the stirring of 700 revolutions per minute, adjusting the rotating speed to 1200 revolutions per minute after the addition is finished, and stirring for 15 min;

(5) under the stirring of 1000 revolutions per minute, the emulsion, the film forming additive, the multicolor wetting agent, the antifreezing agent, the mildew preventive and the residual defoaming agent are sequentially and slowly added, and the stirring is carried out for 5 min;

(6) adding the protective glue solution under stirring at 1100 rpm, and stirring for 8 min;

(7) adding the hydrophobic modified alkali swelling thickener and the amino thickener for 3min under the stirring of 1200 revolutions per minute;

(8) adding snowflake white quartz sand at 1000 r/min and stirring for 3 min;

(9) the tinted base paint is filled into suitable containers for future use.

C. Preparation of a multicoloured continuous phase

(1) Adding deionized water into a suitable container;

(2) adding organic bentonite under stirring at 900 rpm, and stirring for 20 min;

(3) adding the emulsion, the film forming assistant, the antifreezing agent and the pH regulator in sequence under stirring at 1000 r/min, and stirring for 10 min;

(4) under the stirring of 1100 r/min, the thickening agent is slowly added and stirred for 5 min.

(5) Filling the multi-color continuous phase into a suitable container for standby.

D. Preparation of high-strength high-toughness sand-in-water multicolor paint

(1) Sequentially weighing the colorful protective glue solution, the color mixing base paint and the colorful continuous phase for later use;

(2) toning the toning base paint according to the required color;

(3) adding the toning base paint into the colorful protective glue solution according to a proportion for granulation under the stirring of 400 r/min, if colored dots with different sizes exist, dividing the toning base paint and the protective glue into 3 parts according to a proportion, and respectively granulating each part;

(4) mixing all the color points together under the stirring of 400 revolutions per minute, adding the colorful continuous phase after uniformly stirring, adding a pH regulator accounting for 0.1 wt% of the total mass of the finish paint and a hydrophobic modified thickener ACRYSOL TT-935 accounting for 0.2 wt% of the total mass of the finish paint after uniformly stirring, stirring and thickening to obtain a finished product, and packaging after the finished product is qualified in detection.

A preparation method of the sand-in-water multicolor paint with high strength and high toughness in the embodiment 2 comprises the following specific steps:

A. preparation of colorful protective glue solution

(1) Adding deionized water into a suitable container, and starting stirring;

(2) adding protective rubber powder, a colorful anti-settling agent and a cross-linking agent under stirring at 1400 revolutions per minute, and stirring for 35 min;

B. Preparation of a tinting base paint

(1) Adding deionized water into a proper container, and starting stirring;

(2) uniformly and slowly adding the bactericide and the dispersing agent under stirring at 400 revolutions per minute and stirring for 2 min;

(3) adding the cellulose thickener and stirring for 8min under the stirring of 700 revolutions per minute;

(4) slowly adding various fillers, partial defoaming agent and pH regulator under stirring at 800 r/min, adjusting the rotating speed to 1350 r/min after the addition is finished, and stirring for 18 min;

(5) under the stirring of 1100 r/min, the emulsion, the film forming additive, the multicolor wetting agent, the antifreezing agent, the mildew preventive and the residual defoaming agent are sequentially and slowly added, and the stirring is carried out for 4 min;

(6) adding the protective glue solution under stirring at 1200 rpm, and stirring for 10 min;

(7) adding the hydrophobic modified alkali swelling thickener and the amino thickener for 4min under the stirring of 1300 revolutions per minute;

(8) adding snowflake white quartz sand at 1000 r/min and stirring for 3 min;

(9) the tinted base paint is filled into suitable containers for future use.

C. Preparation of a multicoloured continuous phase

(1) Adding deionized water into a suitable container;

(2) adding organic bentonite under stirring at 1000 rpm, and stirring for 20 min;

(3) adding the emulsion, the film forming assistant, the antifreezing agent and the pH regulator in sequence under stirring at 900 revolutions per minute, and stirring for 10 min;

(4) under the stirring of 1200 r/min, the thickening agent is slowly added and stirred for 5 min.

D. Preparation of high-strength high-toughness sand-in-water multicolor paint

(2) toning the toning base paint according to the required color;

(3) adding the toning base paint into the colorful protective glue solution according to a proportion for granulation under the stirring of 500 revolutions per minute, if colored dots with different sizes exist, dividing the toning base paint and the protective glue into 3 parts according to a proportion, and respectively granulating each part;

(4) and mixing all the color points together under stirring at 550 revolutions per minute, uniformly stirring, adding the colorful continuous phase, uniformly stirring, adding a pH regulator accounting for 0.1 wt% of the total mass of the finish paint and a hydrophobic modified thickener ACRYSOL TT-935 accounting for 0.4 wt% of the total mass of the finish paint, stirring and thickening to obtain a finished product, and packaging after the finished product is qualified in detection.

A preparation method of the sand-in-water multicolor paint with high strength and high toughness in the embodiment 3 comprises the following specific steps:

A. preparation of colorful protective glue solution

(1) Adding deionized water into a suitable container, and starting stirring;

(2) adding protective rubber powder, a colorful anti-settling agent and a cross-linking agent under stirring at 1500 rpm, and stirring for 40 min;

B. Preparation of a tinting base paint

(1) Adding deionized water into a proper container, and starting stirring;

(2) uniformly and slowly adding the bactericide and the dispersing agent under stirring at 500 revolutions per minute, and stirring for 2 min;

(3) adding the cellulose thickener and stirring for 10min under the stirring of 800 revolutions per minute;

(4) slowly adding various fillers, partial defoaming agent and pH regulator under stirring at 900 revolutions per minute, adjusting the rotating speed to 1500 revolutions per minute after the addition is finished, and stirring for 20 min;

(5) under the stirring of 1200 r/min, the emulsion, the film forming additive, the multicolor wetting agent, the antifreezing agent, the mildew preventive and the residual defoaming agent are sequentially and slowly added, and the stirring is carried out for 10 min;

(6) adding the protective glue solution under stirring at 1300 rpm, and stirring for 10 min;

(7) adding the hydrophobic modified alkali swelling thickener and the amino thickener for 5min under the stirring of 1400 revolutions per minute;

(8) adding snowflake white quartz sand and stirring for 2.5min at 1200 rpm;

(9) the tinted base paint is filled into suitable containers for future use.

C. Preparation of a multicoloured continuous phase

(1) Adding deionized water into a suitable container;

(2) adding organic bentonite under stirring at 1100 rpm, and stirring for 20 min;

(4) slowly adding the thickening agent while stirring at 1300 rpm, and stirring for 5 min.

D. Preparation of high-strength high-toughness sand-in-water multicolor paint

(2) toning the toning base paint according to the required color;

(3) adding the toning base paint into the colorful protective glue solution according to a proportion for granulation under the stirring of 700 revolutions per minute, if colored dots with different sizes exist, dividing the toning base paint and the protective glue into 3 parts according to a proportion, and respectively granulating each part;

(4) and mixing all the color points together under the stirring of 700 revolutions per minute, uniformly stirring, adding the colorful continuous phase, uniformly stirring, adding a pH regulator accounting for 0.1 wt% of the total mass of the finish paint and a hydrophobic modified thickener ACRYSOL TT-935 accounting for 0.3 wt% of the total mass of the finish paint, stirring and thickening to obtain a finished product, and packaging after the finished product is qualified in detection.

The following comparative examples are set up and are detailed in Table 2.

TABLE 2

In comparative example 1, ordinary cellulose was used instead of cellulose; in comparative example 2, only the additive was added

EHM 500 without addition of Natrosol HE 10K; in comparative example 3, only Natrosol HE10K was added, and nothing was added

EHM 500。

TABLE 3

In comparative examples 4 to 7: the cellulose comprises 0.3 part

EHM 500 and 1.2 parts Natrosol HE 10K.

TABLE 4

In comparative examples 1-10, the thickener in the multi-color continuous phase included 0.3 parts ACRYSOL TT-935 and 0.2 parts Optiflo TVS;

in comparative examples 1 to 10, the preparation of the final paint was the same as in example 1, and the description thereof is omitted.

The test result is as follows according to the relevant standard in HG/T4343-:

TABLE 5 technical Performance index and Experimental data for the products prepared in the examples

TABLE 6 technical Performance index and Experimental data for comparative examples 1-3

TABLE 7 technical Performance indices and Experimental data for comparative examples 4-7

TABLE 8 technical Performance index and Experimental data for comparative examples 8-10

As can be seen from the test results of the examples in Table 5 and the comparative examples in Table 6, the common cellulose used in comparative example 1 does not provide better strength to the color point, the storage property is not passed, and the sprayed broken points are generated, and the modified cellulose used in comparative examples 2 and 3 has better crosslinking strength and toughness, and basically meets the expected target through the atmospheric pressure spraying test, and the single use of the modified cellulose basically generates slight fragmentation and does not generate prominent effect.

As can be seen from the test results of the examples in table 5 and the comparative examples in table 7, in comparative example 4, the conventional filler was used, and the filler was precipitated in the thermal stability and the low-temperature stability and became unusable after a long time, and the brittle point was measured in the construction; comparative example 5 and comparative example 6, which did not contain talc powder and Kaitai micropowder, had insufficient cohesive strength and had problems of slight chipping and poor texture; in comparative example 7, the talcum powder and the Kaitai micro powder are not added, the spraying test effect is poorer than that of comparative examples 5 and 6, and the color point edge cracking condition occurs, so that the matching of the filler and the use of the original paint performance, the construction performance and the paint film effect are very important.

As can be seen from the test results of the examples in Table 5 and the comparative examples in Table 8, the comparative example 8 thickened on storage with a conventional unmodified thickener, and the effect was general and not satisfactory; comparative example 9 uses modified thickener, the color point is smaller, influence the stone-like effect; comparative example 10 is basically expected, but because each equipment and the like are different, the construction site is different, and risks still exist, the two thickeners need to be matched to be better used in the invention.

In conclusion, the raw materials of the embodiments 1 to 3 are reasonably matched, the strength and the toughness of the color points are improved, the color points can be sprayed by an atmospheric pressure spraying machine, the construction latitude is enhanced, the paint film is consistent in protrusion, the stone imitation effect is good, and the expected target can be achieved.

The hazardous substance limits of the high-strength and high-toughness sand-in-water multicolor coatings in the examples 1 to 3 are checked to meet the standard requirements, and the following table 9 is specifically shown:

TABLE 9 environmental performance indexes and experimental data for examples 1-3

According to the test results of the implementation cases, the experimental results of the high-strength high-toughness sand-in-water multicolor paint prepared by the invention achieve the expected purpose after the implementation of the technical scheme, the strength and the toughness of the sand-in-water color points are improved, the color points are not easy to break during spraying, the construction is easy, the effects are consistent, the simulation degree is high, and the requirements of performance standards HG/T4343-.

Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The high-strength high-toughness sand-in-water multicolor paint is characterized by comprising the following components in parts by weight: 20-30 parts of colorful protective glue solution, 50-60 parts of color matching base paint and 20-30 parts of colorful continuous phase;

the toning base paint comprises the following components in parts by weight: 30-45 parts of solvent, 5-10 parts of protective adhesive, 15-45 parts of first emulsion, 0.5-1.2 parts of cellulose, 10-25 parts of filler, 0.5-1.5 parts of first thickening agent, 22-54.7 parts of functional auxiliary agent and 25-50 parts of quartz sand;

the cellulose comprises the following components in parts by weight: 0.3-0.6 part of hydrophobically modified associative cellulose ether and 1.2-1.6 parts of hydrophobically modified hydroxyethyl cellulose;

the filler comprises at least one of kaolin, talcum powder, mica powder and Kaitai micro powder.

2. The high-strength high-toughness sand-in-water multicolor paint according to claim 1, wherein said first thickener comprises the following components in parts by weight: 0.3-0.5 part of hydrophobic alkali swelling thickener and 0.5-1.2 parts of hydrophobic modified strongly-associated high-pseudoplasticity amino thickener.

3. The high-strength high-toughness sand-in-water multicolor paint of claim 1, wherein the multicolor protection glue solution comprises the following components in parts by weight: 90-95 parts of solvent, 2-10 parts of protective rubber powder, 0.1-0.5 part of colorful anti-settling agent and 0.1-0.5 part of cross-linking agent.

4. The high-strength high-toughness sand-in-water multicolor paint according to claim 3, wherein the protective rubber powder comprises flaky lithium magnesium silicate.

5. The high-strength high-toughness sand-in-water multicolor paint according to any one of claims 1 to 4, wherein the filler comprises the following components in parts by weight: 4-8 parts of kaolin, 5-8 parts of talcum powder, 3-9 parts of mica powder and 5-10 parts of Kaitai micro powder.

6. The high-strength high-toughness sand-in-water multicolor paint according to claim 1, wherein the functional auxiliary comprises the following components in parts by weight: 0.1-0.5 part of mildew preventive, 0.1-2 parts of dispersant, 0.5-1.5 parts of defoamer, 0.1-0.8 part of pH regulator, 0.5-1.5 parts of film-forming additive, 0.5-1.5 parts of antifreeze, 0.1-1 part of bactericide and 0.1-0.4 part of multicolor wetting agent.

7. The high-strength high-toughness sand-in-water multicolor paint according to claim 1 or 4, wherein the multicolor continuous phase comprises the following components in parts by weight: 15-25 parts of solvent, 0.5-0.8 part of bactericide, 0.4-0.7 part of second thickener, 0.1-1 part of organic bentonite, 55-70 parts of second emulsion, 3-10 parts of film-forming assistant, 5-10 parts of antifreezing agent and 0.1-0.5 part of pH regulator.

8. A method for preparing the high-strength high-toughness sand-in-water multicolor paint as claimed in any one of claims 1 to 7, which comprises the following steps:

preparation of the protective colloid solution

preparation of a tinting base paint

preparation of a multicolored continuous phase

preparation of high-strength high-toughness sand-in-water multicolor paint

9. The method for preparing the sand-in-water multicolor paint with high strength and high toughness as claimed in claim 8, wherein the method further comprises the step of thickening with a hydrophobic modified thickener after mixing the color dots with different particle sizes and adding the mixture into the multicolor continuous phase to stir uniformly.