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CN-121975357-A - High-inclusion sand-in-water coating and three-stage preparation process

CN121975357ACN 121975357 ACN121975357 ACN 121975357ACN-121975357-A

Abstract

The invention discloses a high-inclusion sand-in-water coating and a three-stage preparation process, belonging to the technical field of building coatings, wherein the coating is formed by compounding granulating liquid, base paint and continuous phase according to a specific proportion, and the granulating liquid, the base paint and the continuous phase are all formed by a definite and scientific formula, wherein the base paint can flexibly replace the type of protective adhesive, adjust the mixing proportion with white sand, and two alternative schemes are provided for lacquer compounding; the preparation process adopts a three-stage step-by-step preparation and then compounding mode, and each working procedure has definite parameters and strong controllability. The coating disclosed by the invention has extremely strong inclusion, can meet the customized requirements of different clients, has excellent weather resistance, water resistance, adhesive force and crack resistance, is environment-friendly, simple in preparation process, does not need complex equipment, is convenient for industrialized mass production, has strong construction adaptability and controllable cost, and can be widely applied to various building outer wall decorative scenes.

Inventors

  • ZHAI WEN

Assignees

  • 上海拓界龙新材料科技有限公司

Dates

Publication Date
20260505
Application Date
20260317

Claims (6)

  1. 1. The high-inclusion sand-in-water coating is characterized by comprising granulation liquid, base paint and a continuous phase, wherein the granulation liquid, the base paint and the continuous phase are compounded according to a specific proportion, and the formula of each component is as follows: (1) The granulating liquid comprises 1000 parts by mass of water 980 parts, 10-15 parts of protective adhesive, 3-5 parts of ST-7 type anti-settling agent and 2 parts of bactericide; (2) The base paint comprises 1000 parts by mass of water 678 parts, 6 parts of bactericide, 6 parts of defoamer, 2 parts of dispersing agent, 8 parts of glycol, 10 parts of titanium white slurry, 14-18 parts of LC-10KS type heald fibers, 10 parts of film forming auxiliary agent, 200 parts of emulsion, 2 parts of multifunctional auxiliary agent and 5% 60 parts of protective adhesive, wherein the base paint can be mixed with white sand in a proportion of which the mixing proportion is base paint with white sand=5:5, 4:6 or 3:7; (3) The continuous phase comprises 1106 parts by mass of emulsion 1000 parts, 20 parts of glycol, 50 parts of film forming additive, 4 parts of defoamer, 4 parts of 95 pH regulator, 4 parts of bactericide, 10 parts of 1153 thickening additive and 14 parts of water; The paint is compounded with pelletizing liquid 250 weight portions, sand base paint 650 weight portions and continuous phase 100 weight portions, or base paint 650 weight portions and pelletizing liquid 250 weight portions are added into a mixing cylinder, and after pelletizing, continuous phase emulsion 100 weight portions, filming assistant 5 weight portions, glycol 2 weight portions, defoaming agent 1 weight portions and multifunctional assistant 1 weight portion are added, and 1152 thickener is used for thickening and synthesizing.
  2. 2. The high-inclusion sand-in-water coating according to claim 1, wherein 5% of the protective colloid in the base paint is replaced by protective colloid powder, and the protective colloid powder is pre-dispersed for 20-30 minutes after water is added after replacement, and then the operation is continued according to the preparation process of the base paint.
  3. 3. The three-stage preparation process of the high-inclusion sand-in-water coating is characterized by comprising four links of granulating liquid preparation, base paint preparation, continuous phase preparation and paint forming compounding, and comprises the following specific steps of: (1) Preparing granulating liquid: 1.1 weighing water, protective adhesive, ST-7 type anti-settling agent and bactericide according to the formula proportion; 1.2 Adding water into a dispersing kettle, slowly adding a protective adhesive and an ST-7 anti-settling agent in a high-speed dispersing state, and dispersing at a high speed for about 40 minutes to ensure complete dissolution; 1.3, regulating to medium speed for dispersion, adding a bactericide, dispersing for 5 minutes at medium speed, and sealing for later use after preparation is finished; (2) Preparing base paint: 2.1 weighing each component and white sand according to the formula proportion; 2.2, adding water into a dispersing kettle, sequentially adding a bactericide, a defoaming agent, a dispersing agent, ethylene glycol, titanium white slurry, LC-10KS type integrated fibers and a film forming auxiliary agent in a high-speed dispersing state, and dispersing for 10-15 minutes at high speed; 2.3, keeping high-speed dispersion, adding emulsion and multifunctional auxiliary agent, and continuing high-speed dispersion for 5 minutes; 2.4, adding 5% of protective adhesive, uniformly stirring, adding white sand in a low-speed dispersion state, uniformly stirring, and sealing for later use after preparation is finished; 2.5 if the protective rubber powder is replaced, adding water in the step ②, adding the protective rubber powder for pre-dispersing for 20-30 minutes, and then carrying out subsequent operation; (3) Continuous phase preparation: 3.1 weighing the components according to the formula proportion; 3.2, adding the emulsion into a dispersing kettle, sequentially adding glycol, a film forming auxiliary agent and a defoaming agent in a medium-speed dispersing state, and dispersing for 10 minutes at a medium speed; 3.3, keeping medium-speed dispersion, adding 95 pH regulator, bactericide and water, and continuously stirring for 5 minutes; 3.4 uniformly mixing 1153 thickening aid and water in a corresponding proportion, slowly adding the mixture into a dispersing kettle, stirring while adding, slowly thickening the mixture after uniform mixing, and sealing for later use after preparation is finished; (4) And (5) paint forming and compounding.
  4. 4. The three-stage preparation process of the high-inclusion sand-in-water coating according to claim 3, wherein the paint forming compounding scheme is characterized in that 250 parts of granulating liquid, 650 parts of sand-containing base paint and 100 parts of continuous phase are added into a mixing cylinder, stirred at medium speed for 15-20 minutes, and uniformly mixed.
  5. 5. The three-stage preparation process of the high-inclusion sand-in-water coating according to claim 3, wherein the paint forming compounding scheme is characterized in that 650 parts of base paint and 250 parts of granulating liquid are directly added into a mixing cylinder body, high-speed stirring is carried out for 10-15 minutes for granulating, the speed is regulated to a medium speed after granulating, 100 parts of continuous phase emulsion, 5 parts of film forming auxiliary agent, 2 parts of glycol, 1 part of defoaming agent and 1 part of multifunctional auxiliary agent are added, 1152 thickening agent is added for thickening, and stirring is carried out uniformly.
  6. 6. The three-stage preparation process of the high-inclusion sand-in-water coating according to claim 3, wherein the high-speed dispersion rotating speed is controlled to be 800-1000r/min, the medium-speed dispersion rotating speed is controlled to be 400-600r/min, the low-speed dispersion rotating speed is controlled to be 200-300r/min, the rotating speeds of all stages strictly follow the process requirements, and the components are ensured to be uniformly dispersed and free of agglomeration.

Description

High-inclusion sand-in-water coating and three-stage preparation process Technical Field The invention relates to the technical field of building coatings, in particular to a high-inclusion sand-in-water coating and a three-stage preparation process. Background The sand-in-water paint is used as an innovative product in the field of stone-like paint, gradually replaces the traditional real stone paint to become the main stream of the market by virtue of the advantages of high simulation degree, crack resistance, stain resistance and the like, and is widely applied to the decoration of the outer wall of a building. In recent years, along with the acceleration of building energy saving policies, green building material popularization and urban process, the water-in-sand coating market is continuously expanded, the demand structure is continuously upgraded, and the demands of downstream customers on product customization, color diversification and functionality are increasingly improved. However, the current sand-in-water coating industry still has various technical pain points and industry mess, on one hand, poor quality of raw materials, poor weather resistance, easy whitening and even release of harmful substances caused by poor quality color sand, low-content emulsion or additives which are not subjected to environmental protection treatment by partial enterprises, and on the other hand, the existing sand-in-water coating system has weaker inclusion, small formula adjustment space, difficulty in adapting to the differentiated requirements of different clients on coating texture, color and construction process, irregular production process, unbalanced proportion of protective adhesive and thickening emulsion, immature coating technology and the like, and directly causes the defects of poor water-white resistance, low storage stability and the like of the coating. Meanwhile, the existing preparation process of the sand-in-water coating has the problems of complicated flow, poor procedure connection, inaccurate parameter control and the like, so that the stability of product batches is insufficient, phenomena such as skin explosion, cracking and falling off are easy to occur in the construction process, and the problems are mainly caused by the factors such as nonstandard construction flow, poor suitability of the coating and the like. In order to solve the technical problems and meet the demands of the market on the high-inclusion, high-stability and customizable sand-in-water paint, the invention provides the high-inclusion sand-in-water paint and the three-stage preparation process, and the double improvement of paint performance and construction adaptability is realized by optimizing the formula composition, refining the preparation process and improving the system inclusion, and meanwhile, the production and construction cost is reduced, so that the standardized and high-quality development of the sand-in-water paint industry is promoted. Disclosure of Invention The invention aims to overcome the defects in the prior art, provide the high-inclusion sand-in-water coating and the three-stage preparation process, solve the problems of poor inclusion, limited formula adjustment, insufficient storage stability, weak construction adaptability and the like of the existing sand-in-water coating system, realize flexible adjustment of the coating formula, optimization and upgrading of the process, ensure excellent weather resistance, water resistance, adhesive force and decorative effect of the coating, adapt to the customized requirements of different clients, and have the advantages of simple preparation process, strong controllability, good batch stability and convenience for industrialized mass production. In order to achieve the above purpose, the invention adopts the following technical scheme: The high-inclusion sand-in-water coating comprises granulation liquid, base paint and a continuous phase, and is prepared by compounding the following components in a specific ratio: (1) The granulating liquid comprises 1000 parts by mass of water 980 parts, 10-15 parts of protective adhesive, 3-5 parts of ST-7 type anti-settling agent and 2 parts of bactericide; (2) The base paint comprises 1000 parts by mass of water 678 parts, 6 parts of bactericide, 6 parts of defoamer, 2 parts of dispersing agent, 8 parts of glycol, 10 parts of titanium white slurry, 14-18 parts of LC-10KS type heald fibers, 10 parts of film forming auxiliary agent, 200 parts of emulsion, 2 parts of multifunctional auxiliary agent and 5% 60 parts of protective adhesive, wherein the base paint can be mixed with white sand in a proportion of which the mixing proportion is base paint with white sand=5:5, 4:6 or 3:7; (3) The continuous phase comprises 1106 parts by mass of emulsion 1000 parts, 20 parts of glycol, 50 parts of film forming additive, 4 parts of defoamer, 4 parts of 95 pH regulator, 4 parts of bactericide, 10 parts of 1153 thickening add