Thick waterproof coating and preparation method thereof
By adding rubber and plastic micropowder and corresponding additives to the traditional waterproof coating, and using the cooked rubber powder made from vulcanization reaction, the existing waterproof coating has been solved, and a thicker and more durable waterproof coating is achieved.
Patent Information
- Application Number
- CN202510618546.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2025-06-20
AI Technical Summary
The existing waterproof coatings have low thickness and are easily scratched and fall off. The adhesion between the coating and the base layer is poor, resulting in the waterproof coatings being easily fall off.
The preparation method of thick waterproof coating is adopted. By adding rubber and plastic micropowder to the traditional waterproof coating and adding corresponding additives during the mixing and dispersion process, the rubber and plastic micropowder fully exerts its performance, thereby increasing the thickness of the waterproof layer, and enhancing the adhesion between the coating and the base layer through the vulcanization reaction.
The unit thickness of the waterproof layer is increased, the adhesion between the coating and the base layer is enhanced, the amount of practical coating is used per unit, the cost is reduced, and the scratch resistance and adhesion of the waterproof coating is improved.
Smart Images
Figure CN120173464A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of waterproof coatings, in particular to a thick waterproof coating and a preparation method thereof. Background Art
[0002] Building waterproof coating is an important building material, referred to as waterproof coating, which is an amorphous material (liquid, viscous, powder mixed with water on site, liquid and powder mixed on site). Through on-site brushing, scraping, smearing, spraying and other construction, it can be cured on the surface of the structure to form a membrane material with waterproof function. Waterproof coating is mainly used for certain structural parts or structural components of buildings that may be eroded by water, such as roofs, basements, toilets and bathrooms, water towers, pools, water storage tanks and other structures for waterproofing, moisture-proofing and anti-seepage.
[0003] However, the existing waterproof coatings are usually of low thickness and are easily scratched and fall off, and the adhesion between the coating and the base layer is poor, so the waterproof coating is easy to fall off; therefore, it does not meet the existing needs. In this regard, we propose a thick waterproof coating and a preparation method thereof. Summary of the invention
[0004] The purpose of the present invention is to provide a thick waterproof coating and a preparation method thereof, so as to solve the problems mentioned in the above background technology that the waterproof coating is usually of low thickness, easily scratched and falls off, and the adhesion between the coating and the base layer is poor, and the waterproof coating is easy to fall off.
[0005] To achieve the above object, the present invention provides the following technical solution: a thick waterproof coating, comprising the following components in parts by weight: 2-5 parts of additives, 8-10 parts of deionized water, 15-25 parts of rubber powder, 30-40 parts of powder, 35-40 parts of the first emulsion, and 6-10 parts of the second emulsion.
[0006] Preferably, the following components are included by weight: 3 parts of polymer additives, 9 parts of deionized water, 15 parts of rubber powder, 30 parts of powder, 35 parts of the first emulsion, and 7 parts of the second emulsion.
[0007] Preferably, the rubber powder is rubber-plastic powder, and the rubber-plastic powder is cooked rubber powder that has undergone vulcanization reaction.
[0008] Preferably, the powder comprises at least one of the following ingredients: mica powder, silver powder, calcite powder, waterproof and heat-insulating powder, white light-reflecting powder, talcum powder, titanium dioxide and transparent quartz glass powder.
[0009] Preferably, the first emulsion is a pure acrylic ester emulsion, and the second emulsion is a polyvinyl acetate-acrylic acid emulsion.
[0010] Preferably, the auxiliary agent comprises at least one of the following components: powder defoamer, leveling agent, bactericide and thickener.
[0011] A preparation method of a thick waterproof coating, comprising the following steps: Step (A): After mixing part of deionized water and part of the auxiliary agent, mix with rubber powder and the first emulsion and pour them into the first stirring device. After sufficient stirring, a mixed matrix can be obtained; Step (B): After mixing the remaining deionized water and the remaining auxiliary agent, mix with the mixed matrix obtained in S1, powder and the second emulsion and pour them into the second stirring device. After sufficient stirring, a semi-finished matrix can be obtained; Step (C): Predisperse the semi-finished matrix obtained in step (B) through a grinder, and fully stir with a stirrer. After ensuring that the liquid is evenly stirred, filter it through a filtering device to remove impurities, then stand still and remove bubbles to obtain the required thick waterproof coating.
[0012] Preferably, the stirring speed of the first stirring device in S1 is 1200 r / min, the stirring time is 40 - 50 min, and the stirring temperature is 100 - 120 °C.
[0013] Preferably, the stirring speed of the second stirring device in step (B) is 2000 r / min, the stirring time is 30 - 40 min, and the stirring temperature is 140 - 150 °C.
[0014] Preferably, a pH regulator can be added in step (A), step (B) and step (C) to adjust the pH value during stirring. The pH regulator comprises at least one of the following components: triethanolamine, ammonia water and sodium hydroxide, and the pH value needs to be maintained at 7.5 - 9.5.
[0015] Compared with the prior art, the beneficial effects of the preparation method of the present invention are: 1. By adding rubber and plastic micro-powder on the basis of the traditional waterproof coating vegetation, and adding corresponding auxiliary agents during the mixing and dispersion process, the rubber and plastic micro-powder in the coating can fully exert its performance, thereby increasing the thickness of the waterproof layer unit; 2. The rubber and plastic micro-powder is prepared by the cooked rubber powder made by vulcanization reaction. After the addition of the rubber and plastic micro-powder, the adhesion between the coating and the base layer can be enhanced, and at the same time, the dosage of the coating used per unit is reduced, and the cost is lowered. Description of the Drawings
[0016] Figure 1 It is the overall preparation general flow chart of the present invention; Figure 2 It is the flow chart of the processing of the thick waterproof coating of the present invention. Detailed Embodiments
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0018] See also Figure 1 and Figure 2 , an embodiment of the present invention provides: a thick waterproof coating, comprising the following components in parts by weight: 2-5 parts of additives, 8-10 parts of deionized water, 15-25 parts of rubber powder, 30-40 parts of powder, 35-40 parts of the first emulsion, and 6-10 parts of the second emulsion.
[0019] It includes the following components by weight: 3 parts of polymer additives, 9 parts of deionized water, 15 parts of rubber powder, 30 parts of powder, 35 parts of the first emulsion, and 7 parts of the second emulsion.
[0020] Rubber powder is rubber-plastic powder, which is cooked rubber powder that has undergone vulcanization reaction.
[0021] By adding rubber and plastic powder to the traditional waterproof coating, and adding corresponding additives during the mixing and dispersion process, the rubber and plastic powder in the coating can give full play to its performance, thereby increasing the unit thickness of the waterproof layer, and preparing the rubber and plastic powder through the cooked rubber powder made by vulcanization reaction, so that the rubber and plastic powder can enhance the adhesion between the coating and the base layer after addition, while also reducing the amount of unit practical coating and reducing costs.
[0022] The powder contains at least one of the following ingredients: mica powder, silver powder, calcite powder, waterproof and heat-insulating powder, white light-reflecting powder, talcum powder, titanium dioxide and transparent quartz glass powder.
[0023] The first emulsion is a pure acrylic ester emulsion, and the second emulsion is a polyvinyl acetate-acrylic acid emulsion.
[0024] The additive comprises at least one of the following ingredients: a powder defoamer, a leveling agent, a bactericide and a thickener.
[0025] A method for preparing a thick waterproof coating comprises the following steps: Step (A), after mixing part of deionized water and part of the auxiliary agent, the mixture is poured into a first stirring device with the rubber powder and the first emulsion, and after being fully stirred, a mixed matrix can be obtained; Step (B), after mixing the remaining deionized water and the remaining additives, the mixed matrix, powder and the second emulsion obtained in S1 are mixed and poured into a second stirring device, and after being fully stirred, a semi-finished matrix can be obtained; Step (C): The semi-finished matrix obtained in step (B) is pre-dispersed by a grinding machine and fully stirred with a mixer. After ensuring that the liquid is evenly stirred, it is filtered through a filtering device to remove impurities, and then left standing to remove air bubbles, obtaining the required thick waterproof coating.
[0026] In step (A), the stirring speed of the first stirring device is 1200 r / min, the stirring time is 40 - 50 min, and the stirring temperature is 100 - 120 °C.
[0027] In step (B), the stirring speed of the second stirring device is 2000 r / min, the stirring time is 30 - 40 min, and the stirring temperature is 140 - 150 °C.
[0028] In steps (A), (B) and (C), a PH regulator can be added to adjust the PH value during stirring. The PH regulator contains at least one of the following components: triethanolamine, ammonia water and sodium hydroxide, and the PH value needs to be maintained at 7.5 - 9.5.
[0029] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A thick waterproof coating, characterized in that: It includes the following components by weight: 2-5 parts of additives, 8-10 parts of deionized water, 15-25 parts of rubber powder, 30-40 parts of powder, 35-40 parts of the first emulsion, and 6-10 parts of the second emulsion.
2. A thick waterproof coating according to claim 1, characterized in that: It includes the following components by weight: 3 parts of polymer additives, 9 parts of deionized water, 15 parts of rubber powder, 30 parts of powder, 35 parts of the first emulsion, and 7 parts of the second emulsion.
3. A thick waterproof coating according to claim 1, characterized in that: The rubber powder is rubber-plastic powder, and the rubber-plastic powder is cooked rubber powder that has undergone vulcanization reaction.
4. A thick waterproof coating according to claim 1, characterized in that: The powder comprises at least one of the following ingredients: mica powder, silver powder, calcite powder, waterproof and heat-insulating powder, white light-reflecting powder, talcum powder, titanium dioxide and transparent quartz glass powder.
5. A thick waterproof coating according to claim 1, characterized in that: The first emulsion is a pure acrylic ester emulsion, and the second emulsion is a polyvinyl acetate-acrylic acid emulsion.
6. A thick waterproof coating according to claim 1, characterized in that: The auxiliary agent comprises at least one of the following ingredients: a powder defoamer, a leveling agent, a bactericide and a thickener.
7. A method for preparing a thick waterproof coating according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step (A), after mixing part of deionized water and part of the auxiliary agent, the mixture is poured into a first stirring device with the rubber powder and the first emulsion, and after being fully stirred, a mixed matrix can be obtained; Step (B), after mixing the remaining deionized water and the remaining additives, the mixed matrix, powder and the second emulsion obtained in S1 are mixed and poured into a second stirring device, and after being fully stirred, a semi-finished matrix can be obtained; Step (C), pre-dispersing the semi-finished matrix obtained in step (B) through a grinder, and fully stirring it with a mixer to ensure that the liquid is stirred evenly, filtering it through a filtering device to remove impurities, letting it stand and removing bubbles, and obtaining the desired thick waterproof coating.
8. The method for preparing a thick waterproof coating according to claim 8, characterized in that: The stirring speed of the first stirring device in S1 is 1200 r / min, the stirring time is 40-50 min, and the stirring temperature is 100-120°C.
9. The method for preparing a thick waterproof coating according to claim 8, characterized in that: In the step (B), the stirring speed of the second stirring device is 2000 r / min, the stirring time is 30-40 min, and the stirring temperature is 140-150° C.
10. The method for preparing a thick waterproof coating according to claim 8, characterized in that: A pH regulator can be added in step (A), step (B) and step (C) to adjust the pH value during stirring. The pH regulator comprises at least one of the following components: triethanolamine, ammonia water and sodium hydroxide, and the pH value needs to be maintained at 7.5 to 9.5.