A waterproof coating that takes into account both flexibility and surface rigidity wear resistance

Abstract

The invention relates to the technical field of waterproof coating preparation, and in particular to a waterproof coating with flexibility and surface rigidity and wear resistance. The preparation method of the waterproof coating comprises the following steps: sequentially adding raw materials for preparation and stirring; determining to stir at a first stirring speed or to maintain an initial stirring speed for stirring based on whether a sound frequency fluctuates or high-frequency noise is generated during the stirring process; determining to stir at a second stirring speed or sequentially adding emulsion GT203, slurry, black slurry and blue slurry based on whether bubbles appear in the material during the stirring process at the first stirring speed or whether irregular vortices are generated in the material; reducing the rotation speed of a stirring paddle to the second stirring speed, and determining to continue stirring at the second stirring speed or to slowly add a dissolved thickener based on the number and rising speed of bubbles overflowing during the stirring process at the second stirring speed; the invention improves the performance of the waterproof coating by improving the accuracy of the analysis of the waterproof coating preparation process.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof coating preparation, and in particular to a waterproof coating having both flexibility and surface rigidity and wear resistance. Background Art

[0002] In the existing market, most waterproof coating products can only focus on one aspect of performance. For example, some waterproof coatings with flexibility as the main feature can adapt to the deformation of building structures well, but they perform poorly in terms of surface wear resistance and are easily worn under the influence of the external environment, which in turn affects the waterproof effect; and some waterproof coatings that emphasize surface rigidity and wear resistance are not flexible enough due to the limitations of their formula and preparation process. When the building structure undergoes a slight deformation, they may crack and cannot effectively prevent water; in addition, with the development of the construction industry, the requirements for environmental protection and construction convenience are also increasing. Traditional waterproof coatings may use some raw materials that are harmful to the environment during the preparation process, or the preparation process is complicated, which increases the difficulty and cost of construction. Therefore, it is of great practical significance to develop a waterproof coating that takes into account flexibility and surface rigidity and wear resistance while meeting the requirements of environmental protection and construction convenience.

[0003] For example, Chinese patent application publication number: CN115851114A discloses a waterproof coating for flexible cork surface and its preparation method, which belongs to the technical field of composite material preparation. The waterproof coating of the present invention is composed of 20 to 100 parts of polyetherimide, 10 to 50 parts of polystyrene, and 300 to 1000 parts of diluent according to the weight ratio. The preparation method of the waterproof coating of the present invention comprises the following steps: taking polyetherimide, polystyrene, and diluent according to the weight ratio; dissolving polyetherimide and polystyrene in the diluent respectively, and then mixing the two solutions together, and obtaining the waterproof coating after stirring evenly. The invention comprehensively utilizes the flexibility and film-forming properties of polyetherimide and the waterproof properties of polystyrene to prepare a waterproof coating that can be sprayed. The coating can be used for waterproof protection of flexible cork surface, and has good film-forming property, flexibility, wear resistance, and thermal insulation and flame retardant properties.

[0004] However, the prior art has problems such as single performance of waterproof coatings and inaccurate analysis of the waterproof coating preparation process, resulting in low performance of the prepared waterproof coatings. Summary of the invention

[0005] To this end, the present invention provides a waterproof coating that has both flexibility and surface rigidity and wear resistance, so as to overcome the problems in the prior art of single performance of waterproof coatings and inaccurate analysis of the preparation process of waterproof coatings, resulting in low performance of the prepared waterproof coatings.

[0006] To achieve the above object, the present invention provides a waterproof coating having both flexibility and surface rigidity and wear resistance, comprising:

[0007] Step S1, add partial water into the mixing tank and start mixing at the initial mixing speed. After mixing the two defoamers evenly, dilute them with water, then slowly add them into the mixing tank. Dissolve the dispersant and wetting agent evenly with water respectively and then slowly add them. Slowly add the preservative P19, and finally add the remaining water and mix evenly;

[0008] Step S2, add titanium dioxide, barium sulfate and heavy calcium carbonate into the mixing tank in sequence and mix evenly;

[0009] Step S3, determine to mix at the first mixing speed or maintain the initial mixing speed based on whether the sound frequency during the mixing process fluctuates or high-frequency noise is generated;

[0010] Step S4, determine to mix at the second mixing speed based on whether abnormal phenomena of air bubbles appear in the material or irregular vortices are generated in the material during the mixing process at the first mixing speed, or add the emulsion GT203, slurry, black paste and blue paste in sequence and continue to mix at the first mixing speed;

[0011] Step S5, after the material is evenly dispersed, reduce the rotation speed of the mixing paddle to the second mixing speed, and determine to continue mixing at the second mixing speed based on the number and rising speed of the air bubbles overflowing from the material during the mixing process at the second mixing speed, or slowly add the dissolved thickener, increase the rotation speed to the third mixing speed and raise the height of the mixing paddle during the adding process, and stop mixing after mixing evenly;

[0012] Among them, the proportion of the preparation raw materials of the waterproof coating that takes into account both flexibility and surface rigid wear resistance is 8 - 10 parts of water, 0.1 - 0.3 parts of dispersant D26, 0.05 - 0.1 parts of preservative P19, 0.1 - 0.2 parts of silicone defoamer, 0.1 - 0.2 parts of polyether defoamer, 0.05 - 0.1 parts of wetting agent BD109, 2 - 4 parts of titanium dioxide, 5 - 7 parts of barium sulfate, 8 - 10 parts of heavy calcium carbonate, 40 - 42 parts of emulsion GT203, 27 - 29 parts of slurry, 0.07 - 0.09 parts of black paste, 0.03 - 0.05 parts of blue paste and 0.1 - 0.3 parts of thickener. Among them, the slurry is composed of 50% calcium carbonate, 30% kaolin and 20% mica powder.

[0013] Further, in the step S3, determining to mix at the first mixing speed or maintain the initial mixing speed includes:

[0014] If the sound frequency during the mixing process does not fluctuate and no high-frequency noise is generated, determine to mix at the first mixing speed;

[0015] If the sound frequency fluctuates or high-frequency noise occurs during the stirring process, determine to maintain the initial stirring speed for stirring.

[0016] Further, in the step S3, the stirring at the first stirring speed includes increasing the rotation speed of the stirring paddle to 600 revolutions per minute for stirring.

[0017] Further, in the step S3, determining that the sound frequency fluctuates during the stirring process includes that the difference between the maximum value and the minimum value of the sound frequency during the stirring process is greater than a preset difference.

[0018] The preset difference is determined according to the historical maximum difference between the maximum value and the minimum value of the sound frequency when the sound frequency does not fluctuate during the stirring at the initial stirring speed.

[0019] Further, in the step S3, determining that high-frequency noise is generated in the sound frequency during the stirring process includes that the time stamp of the high-frequency vibration signal detected by the vibration sensor in the production equipment is consistent with the time stamp of the abnormal sound frequency.

[0020] Further, in the step S4, determining to stir at the second stirring speed, or, successively adding emulsion GT203, slurry, black paste, and blue paste and continuing to stir at the first stirring speed includes:

[0021] If abnormal phenomena such as bubbles are generated in the material during the stirring at the first stirring speed or irregular vortices are generated in the material, determine to stir at the second stirring speed;

[0022] If no abnormal phenomena such as bubbles are generated in the material during the stirring at the first stirring speed and no irregular vortices are generated in the material, determine to successively add emulsion GT203, slurry, black paste, and blue paste and continue to stir at the first stirring speed.

[0023] Further, in the step S4, determining whether abnormal phenomena such as bubbles are generated in the material during the stirring at the first stirring speed includes:

[0024] Step S4401, obtaining real-time images of the material during the stirring within a preset duration at equal intervals;

[0025] Step S4402, obtaining the number of bubbles generated within the preset duration and the difference between the area of the largest bubble and the area of the smallest bubble within the preset duration;

[0026] Step S4403, comparing the number of bubbles generated within the preset duration and the difference between the area of the largest bubble and the area of the smallest bubble within the preset duration with preset thresholds respectively;

[0027] Step S4404: If the number of bubbles generated and the difference between the area of the largest bubble and the area of the smallest bubble within the preset time are both greater than the corresponding preset thresholds, it is determined that the material has an abnormal bubble generation phenomenon.

[0028] Further, in step S5, determining to continue stirring at the second stirring speed or slowly add the dissolved thickener includes:

[0029] If the number of bubbles overflowing from the material during the stirring process at the second stirring speed is greater than a preset number or the rising speed of the bubbles is greater than a preset rising speed, it is determined to continue stirring at the second stirring speed;

[0030] If the number of bubbles overflowing from the material during the stirring process at the second stirring speed is less than or equal to a preset number and the rising speed of the bubbles is less than or equal to a preset rising speed, it is determined that the dissolved thickener is slowly added.

[0031] Furthermore, the preset number is determined based on a historical average value of the number of bubbles overflowing from the material during stirring at the second stirring speed.

[0032] Compared with the prior art, the beneficial effect of the present invention lies in that the waterproof coating of the present invention achieves a balance between flexibility, rigidity and wear resistance by scientifically proportioning a variety of functional raw materials. The emulsion is the main film-forming substance of the coating, providing flexibility and waterproofness. The addition amount of the emulsion (40-42 parts) ensures the high elasticity and flexibility of the coating. Inorganic fillers such as titanium dioxide, barium sulfate and heavy calcium (a total of 15-21 parts) provide rigidity and wear resistance of the coating. Titanium dioxide can enhance the covering power and weather resistance of the coating, while barium sulfate and heavy calcium improve the hardness and wear resistance of the coating. The addition of thickener (0.1-0.3 parts) not only improves the construction performance of the coating, but also enhances the water resistance and weather resistance of the coating. Additives such as dispersant and wetting agent (0.1-0.3 parts of dispersant and 0.05-0.1 parts of wetting agent) can improve the dispersibility and uniformity of the coating and ensure that the components are fully mixed during the stirring process.

[0033] Furthermore, by monitoring the sound frequency and vibration signals, the present invention can dynamically adjust the stirring speed according to the actual state during the stirring process. For example, when the sound frequency does not fluctuate and no high-frequency noise is generated, the stirring speed can be increased to the first stirring speed (such as 600 revolutions per minute) to accelerate the mixing of materials and shorten the stirring time. If the sound frequency fluctuates or high-frequency noise is generated, it indicates that there may be problems such as excessive bubbles or uneven material distribution during the stirring process. At this time, maintaining the initial stirring speed (such as 300 revolutions per minute) can avoid ineffective stirring caused by too fast stirring speed and ensure the uniformity and stability of the stirring process. By monitoring whether the difference between the maximum and minimum values of the sound frequency exceeds a preset threshold, the mixing uniformity of the materials during the stirring process can be judged. If the difference exceeds the threshold, it indicates that the materials are not evenly mixed. At this time, maintaining the initial stirring speed can avoid the generation of bubbles or material stratification caused by too fast stirring speed. The generation of high-frequency noise is usually related to the formation of bubbles during the stirring process. By detecting whether the timestamps of the high-frequency vibration signal and the abnormal sound frequency detected by the vibration sensor are consistent, it can be judged whether there are a large number of bubbles. Maintaining the initial stirring speed helps to reduce the generation of bubbles, thereby improving the product quality.

[0034] Furthermore, by real-time monitoring of the number of bubbles and vortex characteristics, the present invention can dynamically adjust the stirring speed according to the actual state of the materials. When abnormal bubble generation or irregular vortices are detected, switch to a lower stirring speed (the second stirring speed) to avoid excessive bubbles or material stratification caused by too fast stirring. If there are no uneven bubbles or irregular vortices in the materials, continue to stir at the first stirring speed and sequentially add the emulsion, black paste, and blue paste. This optimized stirring strategy can significantly improve the stirring efficiency and reduce the stirring duration. By monitoring the difference in the number and area of bubbles, the present invention can timely detect possible bubble problems during the stirring process. When the difference in the number and area of bubbles exceeds a preset threshold, switch to a lower stirring speed to reduce the further generation of bubbles, thereby improving the uniformity and quality of the coating. Irregular vortices may cause uneven material distribution and affect the performance of the coating. By using an image processing algorithm to identify the center position and shape characteristics of the vortices, the present invention can timely detect and avoid the generation of irregular vortices, ensuring the stability of the stirring process and the uniformity of the materials. By the above methods, the accuracy of the analysis of the waterproof coating preparation process is improved, and thus the performance of the prepared waterproof coating is improved.

[0035] Furthermore, by monitoring the number and rising speed of bubbles, the present invention can judge the mixing state of the materials during the stirring process in real time. When the number and rising speed of bubbles exceed the preset threshold, continue to stir at the second stirring speed to ensure that the materials are fully mixed and the bubbles are discharged. When the number and rising speed of bubbles are lower than the threshold, add a thickener to further optimize the coating performance. Excessive residual bubbles will cause uneven coating, surface defects or insufficient strength. By dynamically adjusting the stirring speed and the addition timing of the thickener, the present invention effectively reduces the residual bubbles, ensuring the uniformity and density of the coating. By adding the thickener at the appropriate time, the present invention can optimize the flexibility and wear resistance of the coating. The addition of the thickener not only improves the construction performance of the coating, but also enhances the crack resistance and durability of the coating. The addition of the thickener can improve the leveling property and adhesion of the coating, making it easier to operate during the construction process, while reducing the risk of cracking and peeling of the coating. By the above method, the accuracy of the analysis of the waterproof coating preparation process is improved, and thus the performance of the prepared waterproof coating is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a flowchart of the preparation method of the waterproof coating that takes into account both flexibility and surface rigid wear resistance according to an embodiment of the present invention;

[0037] Figure 2 is a flowchart of judging whether there is an abnormal phenomenon of bubble generation in the materials during the stirring process at the first stirring speed in the preparation method of the waterproof coating that takes into account both flexibility and surface rigid wear resistance according to an embodiment of the present invention;

[0038] Figure 3 is a flowchart of determining to stir at the first stirring speed or maintain the initial stirring speed in the preparation method of the waterproof coating that takes into account both flexibility and surface rigid wear resistance according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In order to make the objectives and advantages of the present invention clearer and more understandable, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0041] Please refer to Figures 1 - 3 as shown Figure 1 is a flowchart of the preparation method of the waterproof coating that takes into account both flexibility and surface rigid wear resistance according to an embodiment of the present invention; Figure 2It is a flowchart for judging whether there is an abnormal phenomenon of air bubbles in the material during the stirring process at the first stirring speed in the preparation method of the waterproof coating that takes into account both flexibility and surface rigid wear resistance according to the embodiments of the present invention; Figure 3 It is a flowchart for determining whether to stir at the first stirring speed or maintain the initial stirring speed in the preparation method of the waterproof coating that takes into account both flexibility and surface rigid wear resistance according to the embodiments of the present invention.

[0042] The waterproof coating that takes into account both flexibility and surface rigid wear resistance according to the embodiments of the present invention includes:

[0043] Step S1, add part of water into the stirring tank and start stirring at the initial stirring speed. Mix the two defoamers evenly, then dilute with water, and slowly add them into the stirring tank. Dissolve the dispersant and wetting agent evenly with water respectively and then slowly add them. Slowly add the preservative P19, and finally add the remaining water and stir evenly;

[0044] Step S2, add titanium dioxide, barium sulfate and heavy calcium into the stirring tank in sequence and stir evenly;

[0045] Step S3, determine whether to stir at the first stirring speed or maintain the initial stirring speed based on whether the sound frequency during the stirring process fluctuates or whether high-frequency noise is generated;

[0046] Step S4, determine whether to stir at the second stirring speed based on whether there is an abnormal phenomenon of air bubbles in the material or whether irregular vortices are generated in the material during the stirring process at the first stirring speed, or add the emulsion GT203, slurry, black paste and blue paste in sequence and continue stirring at the first stirring speed;

[0047] Step S5, after the material is evenly dispersed, reduce the rotation speed of the stirring paddle to the second stirring speed, and determine whether to continue stirring at the second stirring speed based on the number and rising speed of the air bubbles overflowing from the material during the stirring process at the second stirring speed, or slowly add the dissolved thickener, increase the rotation speed to the third stirring speed and raise the height of the stirring paddle during the adding process, and stop stirring after stirring evenly;

[0048] Among them, the proportion of the raw materials for preparing the waterproof coating that takes into account flexibility and surface rigid wear resistance is 8 - 10 parts of water, 0.1 - 0.3 parts of dispersant D26, 0.05 - 0.1 parts of preservative P19, 0.1 - 0.2 parts of silicone defoamer, 0.1 - 0.2 parts of polyether defoamer, 0.05 - 0.1 parts of wetting agent BD109, 2 - 4 parts of titanium dioxide, 5 - 7 parts of barium sulfate, 8 - 10 parts of heavy calcium, 40 - 42 parts of emulsion GT203, 27 - 29 parts of slurry, 0.07 - 0.09 parts of black paste, 0.03 - 0.05 parts of blue paste, and 0.1 - 0.3 parts of thickener. Among them, the slurry is composed of 50% calcium carbonate, 30% kaolin, and 20% mica powder.

[0049] In the embodiment of the present invention, the slurry is composed of 50% calcium carbonate, 30% kaolin, and 20% mica powder. The initial stirring speed is determined according to the specific weight of the added preparation raw materials, determined according to the initial stirring speed when adding the same weight of preparation raw materials and the working parameters of the stirring device are the same in the historical preparation process. If there is no such initial stirring speed, the initial stirring speed is estimated through the calculation formula of the stirrer speed. The calculation formula of the stirrer speed is , where N is the stirring speed (rpm), P is the stirring power (W), K is a constant related to the type of stirrer (which can be obtained from the relevant manual of the stirrer), D is the diameter of the stirrer (m), A is the fluid density (kg / m³), and B is the dynamic viscosity of the fluid (Pa·s).

[0050] The waterproof coating of the present invention achieves the balance of flexibility and rigid wear resistance by scientifically proportioning a variety of functional raw materials. The emulsion is the main film-forming substance of the coating, providing flexibility and waterproofness. The addition amount of the emulsion (40 - 42 parts) ensures the high elasticity and flexibility of the coating. Inorganic fillers such as titanium dioxide, barium sulfate, and heavy calcium (a total of 15 - 21 parts) provide the rigidity and wear resistance of the coating. Titanium dioxide can enhance the covering power and weather resistance of the coating, while barium sulfate and heavy calcium improve the hardness and wear resistance of the coating. The addition of the thickener (0.1 - 0.3 parts) not only improves the construction performance of the coating but also enhances the water resistance and weather resistance of the coating. Auxiliaries such as dispersants and wetting agents (0.1 - 0.3 parts of dispersant, 0.05 - 0.1 parts of wetting agent) can improve the dispersibility and uniformity of the coating, ensuring that all components are fully mixed during the stirring process.

[0051] In the embodiment of the present invention, adding part of water into the stirring tank and starting stirring includes adding 3 parts of water and starting stirring at a speed of 300 revolutions per minute. The value range of the initial stirring speed is set to 280 revolutions per minute - 320 revolutions per minute. The initial stirring speed is preferably 300 revolutions per minute. The value range of the first stirring speed is set to 500 revolutions per minute - 650 revolutions per minute. The value of the first stirring speed is preferably 600 revolutions per minute. The value range of the second stirring speed is set to 150 revolutions per minute - 250 revolutions per minute. The value of the second stirring speed is preferably 200 revolutions per minute. The value range of the third stirring speed is set to 400 revolutions per minute - 500 revolutions per minute. The value of the third stirring speed is preferably 450 revolutions per minute. However, the above values are not limited to this, and those skilled in the art can also adjust the values according to actual needs.

[0052] Specifically, in step S3, when it is determined to stir at the first stirring speed or maintain the initial stirring speed for stirring, it is determined to stir at the first stirring speed or maintain the initial stirring speed for stirring according to whether the sound frequency during the stirring process fluctuates or high-frequency noise is generated.

[0053] When the sound frequency during the stirring process does not fluctuate and no high-frequency noise is generated, it is determined to stir at the first stirring speed.

[0054] When the sound frequency during the stirring process fluctuates or high-frequency noise is generated, it is determined to maintain the initial stirring speed for stirring.

[0055] In the embodiment of the present invention, determining that the sound frequency during the stirring process fluctuates includes that the difference between the maximum value and the minimum value of the sound frequency during the stirring process is greater than the preset difference. The preset difference is the historical maximum difference between the maximum value and the minimum value of the sound frequency when the sound does not fluctuate during the stirring process at the initial stirring speed. Determining that high-frequency noise is generated during the stirring process of the sound frequency includes that the time stamp when the vibration sensor detects that the production equipment has a high-frequency vibration signal is consistent with the time stamp of the abnormal sound frequency. The abnormal sound frequency includes high-frequency components (such as higher than 20 kHz) whose frequency range exceeds the normal working frequency range, the difference between the maximum value and the minimum value of the frequency exceeds the preset threshold, and the sharpness or fluctuation intensity increases significantly (for example, the sharpness exceeds 1.5 times the normal value). However, the above values are not limited to this, and those skilled in the art can also adjust the values according to actual needs.

[0056] By monitoring the sound frequency and vibration signals, the present invention can dynamically adjust the stirring speed according to the actual state during the stirring process. For example, when the sound frequency does not fluctuate and no high-frequency noise is generated, the stirring speed can be increased to the first stirring speed (such as 600 revolutions per minute), thereby accelerating the mixing of materials and shortening the stirring time. If the sound frequency fluctuates or high-frequency noise is generated, it indicates that there may be problems such as excessive bubbles or uneven material distribution during the stirring process. At this time, maintaining the initial stirring speed (such as 300 revolutions per minute) can avoid ineffective stirring caused by too fast stirring speed and ensure the uniformity and stability of the stirring process. By monitoring whether the difference between the maximum value and the minimum value of the sound frequency exceeds a preset threshold, the mixing uniformity of the materials during the stirring process can be judged. If the difference exceeds the threshold, it indicates that the materials are not evenly mixed. At this time, maintaining the initial stirring speed can avoid the generation of bubbles or material stratification caused by too fast stirring speed. The generation of high-frequency noise is usually related to the formation of bubbles during the stirring process. By detecting whether the timestamps of the high-frequency vibration signals and abnormal sound frequencies detected by the vibration sensor are consistent, it can be judged whether there are a large number of bubbles. Maintaining the initial stirring speed helps to reduce the generation of bubbles, thereby improving the product quality.

[0057] Specifically, in step S4, when it is determined to stir at the second stirring speed, or, when adding emulsion GT203, slurry, black paste, and blue paste in sequence and continuing to stir at the first stirring speed, it is determined to stir at the second stirring speed according to whether abnormal bubble generation occurs in the materials during the stirring process at the first stirring speed or whether irregular vortices are generated in the materials, or, add emulsion GT203, slurry, black paste, and blue paste in sequence and continue to stir at the first stirring speed;

[0058] When abnormal bubble generation occurs in the materials during the stirring process at the first stirring speed or irregular vortices are generated in the materials, it is determined to stir at the second stirring speed;

[0059] When no abnormal bubble generation occurs in the materials during the stirring process at the first stirring speed and no irregular vortices are generated in the materials, it is determined to add emulsion GT203, slurry, black paste, and blue paste in sequence and continue to stir at the first stirring speed.

[0060] Specifically, in step S4, the steps of judging whether abnormal bubble generation occurs in the materials during the stirring process at the first stirring speed include:

[0061] Step S4401, obtaining real-time images of the materials during the stirring process at equal intervals within a preset duration;

[0062] Step S4402, obtaining the number of bubbles generated within a preset duration and the difference between the area of the largest bubble and the area of the smallest bubble within a preset duration;

[0063] Step S4403: Compare the number of bubbles generated within a preset time duration and the difference between the area of the largest bubble and the area of the smallest bubble within the preset time duration with their respective preset thresholds.

[0064] Step S4404: If both the number of bubbles generated and the difference between the area of the largest bubble and the area of the smallest bubble within the preset time duration are greater than their corresponding preset thresholds, determine that an abnormal phenomenon of bubble generation occurs in the material.

[0065] In the embodiment of the present invention, the preset time duration is set to 30 seconds, and the equal interval is set to 5 seconds. The preset bubble number threshold is the average value of the number of bubbles generated within several preset time durations under the same stirring conditions. The preset threshold for the difference between the area of the largest bubble and the area of the smallest bubble within the preset time duration is the average value of the differences between the area of the largest bubble and the area of the smallest bubble within several preset time durations under the same stirring conditions. However, the above values are not limited to this, and those skilled in the art can also adjust these values according to actual needs. For example, within the preset time duration (e.g., 30 seconds), at equal intervals (e.g., every 5 seconds), capture real-time images of the material during the stirring process. Assume that 6 images are captured within 30 seconds. Use an image processing unit to analyze the number of bubbles and the bubble area distribution in each image, and count the number of bubbles generated within the preset time duration (30 seconds). Assume that a total of 200 bubbles are detected within 30 seconds. Calculate the difference between the area of the largest bubble and the area of the smallest bubble within the preset time duration. Assume that the area of the largest bubble is 10 square millimeters and the area of the smallest bubble is 1 square millimeter, and the difference is 9 square millimeters. The preset bubble number threshold is 150, and the preset threshold for the difference in bubble area is 5 square millimeters. Since the number of bubbles is greater than the preset bubble number threshold, according to the comparison result, it is determined that an abnormal phenomenon of bubble generation occurs in the material at the first stirring speed (both the number of bubbles and the area difference exceed the preset thresholds).

[0066] In the embodiment of the present invention, determining whether irregular vortices are generated includes analyzing the vortex characteristics in the image, identifying the center position of the vortex through image processing algorithms (such as edge detection and contour extraction), calculating the shape characteristics of the vortex, such as the aspect ratio and area change rate of the vortex, and observing the change in the position of the vortex center. If the position of the vortex center is stable and the shape is regular in consecutive multiple images, it is a normal vortex; if the position of the vortex center changes frequently and the shape is irregular, it is an irregular vortex. For example, if the change in the position of the vortex center in consecutive 3 images does not exceed 10%, and the aspect ratio of the vortex is between 1.5 and 2, it is normal, and if it exceeds this range, it is irregular. If the change in the position of the vortex center exceeds the threshold, or the shape of the vortex is irregular, it is determined that irregular vortices are generated. If the position of the vortex center is stable and the shape is regular, it is determined that no irregular vortices are generated.

[0067] By monitoring the number of bubbles and vortex characteristics in real time, the present invention can dynamically adjust the stirring speed according to the actual state of the material. When abnormal bubble generation or irregular vortices are detected, it switches to a lower stirring speed (the second stirring speed) to avoid excessive bubbles or material stratification caused by over-stirring. If no uneven bubbles or irregular vortices appear in the material, it continues to stir at the first stirring speed and sequentially adds emulsion, black paste, and blue paste. This optimized stirring strategy can significantly improve the stirring efficiency and reduce the stirring duration. By monitoring the difference in the number and area of bubbles, the present invention can timely detect possible bubble problems during the stirring process. When the difference in the number and area of bubbles exceeds a preset threshold, it switches to a lower stirring speed to reduce the further generation of bubbles, thereby improving the uniformity and quality of the coating. Irregular vortices may lead to uneven material distribution and affect the performance of the coating. By using an image processing algorithm to identify the center position and shape characteristics of the vortices, the present invention can timely detect and avoid the generation of irregular vortices, ensuring the stability of the stirring process and the uniformity of the material. By the above method, the accuracy of the analysis of the waterproof coating preparation process is improved, and thus the performance of the prepared waterproof coating is improved.

[0068] Specifically, in step S5, when it is determined to continue stirring at the second stirring speed or slowly add the dissolved thickener, it is determined to continue stirring at the second stirring speed or slowly add the dissolved thickener according to the number and rising speed of the bubbles overflowing from the material during stirring at the second stirring speed.

[0069] When the number of bubbles overflowing from the material during stirring at the second stirring speed is greater than a preset number or the rising speed of the bubbles is greater than a preset rising speed, it is determined to continue stirring at the second stirring speed.

[0070] When the number of bubbles overflowing from the material during stirring at the second stirring speed is less than or equal to the preset number and the rising speed of the bubbles is less than or equal to the preset rising speed, it is determined to slowly add the dissolved thickener.

[0071] In the embodiment of the present invention, the preset number is the historical average value of the number of bubbles overflowing from the material during stirring at the second stirring speed, and the preset rising speed is the historical average value of the rising speed of the bubbles overflowing from the material during stirring at the second stirring speed. However, the above values are not limited to this, and those skilled in the art can also adjust the values according to actual needs.

[0072] In the embodiment of the present invention, during the addition of the thickener, the rotation speed is increased to the third stirring speed and the height of the stirring paddle is increased. After stirring evenly, the stirring is stopped. The increased height of the stirring paddle is the historical average increased height of the stirring paddle under the same stirring conditions. The same stirring conditions include, but are not limited to, "the same stirring speed, the same weight of the stirred material, and the same stirring time", but the above values are not limited to this, and those skilled in the art can also adjust the values according to actual needs.

[0073] By monitoring the number of bubbles and the rising speed, the present invention can judge the mixing state of the material in the stirring process in real time. When the number of bubbles and the rising speed exceed the preset threshold, continue to stir at the second stirring speed to ensure that the material is fully mixed and the bubbles are discharged. When the number of bubbles and the rising speed are lower than the threshold, add a thickener to further optimize the performance of the coating. Excessive residual bubbles will cause the coating to be uneven, have surface defects or insufficient strength. By dynamically adjusting the stirring speed and the addition timing of the thickener, the present invention effectively reduces the residual bubbles and ensures the uniformity and compactness of the coating. By adding the thickener at the appropriate time, the present invention can optimize the flexibility and wear resistance of the coating. The addition of the thickener not only improves the construction performance of the coating, but also enhances the crack resistance and durability of the coating. The addition of the thickener can improve the leveling property and adhesion of the coating, making it easier to operate during construction, while reducing the risk of cracking and peeling of the coating. By the above method, the accuracy of the analysis of the waterproof coating preparation process is improved, and thus the performance of the prepared waterproof coating is improved.

[0074] In an embodiment of the present invention, 3 parts of water (assuming each part is 10 liters, a total of 30 liters) are added to the stirring tank. The stirring motor is started, and the initial stirring speed is set to 300 revolutions per minute. Stirring begins. After mixing 0.2 parts of defoamer evenly, it is diluted with water and slowly added to the stirring tank. Stirring continues. 0.1 part of dispersant D26 and 0.05 part of wetting agent BD109 are each dissolved evenly in water and slowly added to the stirring tank. Stirring continues. 0.05 part of preservative P19 is slowly added, and stirring continues. The remaining 6 parts of water (60 liters) are added, and stirring is carried out until uniform. 3 parts of titanium dioxide, 6 parts of barium sulfate, and 9 parts of heavy calcium are successively added to the stirring tank, and continuous stirring is carried out to ensure uniform dispersion of the fillers. A sound sensor is used to monitor the sound frequency during the stirring process in real time, analyze the maximum and minimum values of the sound frequency, and calculate their difference. The preset difference is the historical maximum difference between the maximum and minimum values of the sound frequency at the initial stirring speed (assumed to be 200 Hz). If the difference between the maximum and minimum values of the sound frequency is greater than 200 Hz, or the time stamps of the high-frequency vibration signals detected by the vibration sensor are consistent with the time stamps of the abnormal sound frequency, the initial stirring speed of 300 revolutions per minute is maintained. If the sound frequency does not fluctuate and no high-frequency noise is generated, the stirring speed is increased to the first stirring speed of 600 revolutions per minute. Real-time images of the materials during the stirring process within 30 seconds are obtained at equal intervals (every 5 seconds), and the number of bubbles and the bubble area distribution in the images are analyzed. Assume that the number of bubbles detected within 30 seconds is 180, the maximum bubble area is 12 square millimeters, the minimum bubble area is 2 square millimeters, and the difference is 10 square millimeters. The number of bubbles and the area difference are compared with the preset thresholds. The preset bubble number threshold is 150, and the preset bubble area difference threshold is 8 square millimeters. If the number of bubbles is greater than the preset bubble number threshold, and the bubble area difference of 10 is greater than the preset bubble area threshold of 8, or irregular vortices are generated, it is determined to stir at the second stirring speed of 200 revolutions per minute. If both the number of bubbles and the area difference do not exceed the preset thresholds and no irregular vortices are generated, 40 parts of emulsion GT203, 0.08 part of black paste, and 0.04 part of blue paste are successively added and stirring continues at the first stirring speed of 600 revolutions per minute. The stirring speed is adjusted or thickener is added based on the bubble overflow situation. After the materials are evenly dispersed, the rotation speed of the stirring paddle is reduced to the second stirring speed of 200 revolutions per minute. The number of bubbles overflowing from the materials and the bubble rising speed during stirring at the second stirring speed are monitored in real time. Assume that the preset bubble number threshold is 50 per minute and the bubble rising speed threshold is 1 cm per second. If the number of bubbles is greater than 50 per minute, or the bubble rising speed is greater than 1 cm per second, stirring continues at the second stirring speed of 200 revolutions per minute. If the number of bubbles is less than or equal to 50 per minute, and the bubble rising speed is less than or equal to 1 cm per second, 0.2 part of thickener is slowly added. During the addition of the thickener, the stirring speed is increased to the third stirring speed of 450 revolutions per minute, and the height of the stirring paddle is appropriately increased. After stirring evenly, the stirring is stopped. Example

[0075] Experimental materials:

[0076] The waterproof coating of the present invention: A waterproof coating prepared according to the examples of the present invention, which takes into account both flexibility and surface rigid wear resistance;

[0077] Ordinary flexible waterproof coating: Commercially available flexible JS waterproof coating is used;

[0078] Ordinary rigid waterproof coating: Commercially available rigid waterproof mortar is used;

[0079] Experimental substrate: Cement mortar substrate (used to simulate building walls and floors).

[0080] Construction method: According to the construction requirements of each coating, three layers are evenly coated on the cement mortar substrate, with a thickness of about 1.5 mm for each layer and a total thickness of about 4.5 mm.

[0081] Curing conditions: Cured for 7 days under standard curing conditions (temperature 23 ± 2 °C, humidity 50 ± 10% RH);

[0082] Flexibility test: According to the GB / T23445-2009 standard, the bending performance of the coating under low temperature (-10 °C) conditions is tested;

[0083] Wear resistance test: The eraser method and the sandpaper method are used to evaluate the wear resistance of the coating under physical friction;

[0084] Crack resistance test: Tensile stress is applied to the surface of the coating to observe whether cracks appear in the coating;

[0085] Water resistance test: The coating sample is immersed in water for 48 hours to observe whether the coating blisters or peels off;

[0086] Bond strength test: According to the GB / T23445-2009 standard, the bond strength between the coating and the substrate is tested;

[0087] Experimental results:

[0088]

[0089] Analysis of experimental results:

[0090] Flexibility: The waterproof coating of the present invention shows excellent flexibility under low temperature conditions, comparable to that of ordinary flexible waterproof coatings, but superior to that of ordinary rigid waterproof coatings, indicating that the coating of the present invention can effectively adapt to the deformation of the base layer and prevent the damage of the waterproof layer caused by temperature changes or base layer cracking;

[0091] Wear resistance: The wear resistance of the coating of the present invention is significantly better than that of ordinary flexible waterproof coatings and comparable to that of ordinary rigid waterproof coatings. This indicates that the coating of the present invention not only has flexibility but also takes into account the characteristics of surface rigid wear resistance and is suitable for high-friction areas (such as floors and walls).

[0092] Crack resistance: The coating of the present invention has high extensibility and crack resistance, which is better than that of ordinary rigid waterproof coatings. This indicates that the coating of the present invention can effectively resist the expansion of base layer cracks during long-term use and extend the service life of the waterproof layer.

[0093] Water resistance: The coating of the present invention performs excellently in the water resistance test, comparable to that of ordinary flexible waterproof coatings but better than that of ordinary rigid waterproof coatings. This indicates that the coating of the present invention can effectively block water penetration and keep the base material dry.

[0094] Adhesion strength: The coating of the present invention has a relatively high adhesion strength, comparable to that of ordinary rigid waterproof coatings but better than that of ordinary flexible waterproof coatings; this indicates that the coating of the present invention can firmly adhere to the surface of the base material and is not easily detached.

[0095] The waterproof coating prepared by the present invention shows significant advantages in taking into account flexibility and surface rigid wear resistance. Compared with ordinary flexible waterproof coatings, the coating of the present invention has better wear resistance and crack resistance; compared with ordinary rigid waterproof coatings, the coating of the present invention has better flexibility and water resistance. This waterproof coating with both flexible and rigid wear-resistant characteristics is particularly suitable for the field of building waterproofing, can effectively adapt to the deformation of the base layer, resist physical wear at the same time, and extend the service life of the waterproof layer.

[0096] The above are only the preferred embodiments of the present invention and are not used to limit the present invention; for those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A waterproof coating that combines flexibility with surface rigidity and wear resistance, characterized in that: The preparation process includes: Step S1, add part of the water into the stirring tank and start stirring at the initial stirring speed. After mixing the two defoamers evenly, dilute them with water, then slowly add them into the stirring tank. Dissolve the dispersant and wetting agent evenly with water respectively and then slowly add them. Slowly add the preservative P19, and finally add the remaining water and stir evenly; Step S2, add titanium dioxide, barium sulfate and heavy calcium into the stirring tank in sequence and stir evenly; Step S3, determine to stir at the first stirring speed or maintain the initial stirring speed based on whether the sound frequency fluctuates or high-frequency noise is generated during the stirring process; Step S4, determine to stir at the second stirring speed based on whether abnormal phenomena such as bubbles are generated in the material or irregular vortices are generated in the material during the stirring process at the first stirring speed, or add the emulsion GT203, slurry, black paste and blue paste in sequence and continue to stir at the first stirring speed; Step S5, after the material is evenly dispersed, reduce the rotation speed of the stirring paddle to the second stirring speed, and determine to continue stirring at the second stirring speed based on the number and rising speed of the bubbles overflowing from the material during the stirring process at the second stirring speed, or slowly add the dissolved thickener, increase the rotation speed to the third stirring speed and raise the height of the stirring paddle during the adding process, and stop stirring after stirring evenly; Among them, the proportion of the raw material parts of the waterproof coating that takes into account both flexibility and surface rigid abrasion resistance is 8 - 10 parts of water, 0.1 - 0.3 parts of dispersant D26, 0.05 - 0.1 parts of preservative P19, 0.1 - 0.2 parts of silicone defoamer, 0.1 - 0.2 parts of polyether defoamer, 0.05 - 0.1 parts of wetting agent BD109, 2 - 4 parts of titanium dioxide, 5 - 7 parts of barium sulfate, 8 - 10 parts of heavy calcium, 40 - 42 parts of emulsion GT203, 27 - 29 parts of slurry, 0.07 - 0.09 parts of black paste, 0.03 - 0.05 parts of blue paste and 0.1 - 0.3 parts of thickener. Among them, the slurry is composed of 50% calcium carbonate, 30% kaolin and 20% mica powder; In the step S3, judging that the sound frequency fluctuates during the stirring process includes that the difference between the maximum value and the minimum value of the sound frequency during the stirring process is greater than the preset difference; The preset difference is determined according to the historical maximum difference between the maximum value and the minimum value of the sound frequency when the sound frequency does not fluctuate during the stirring process at the initial stirring speed.

2. The waterproof coating that takes into account both flexibility and surface rigidity wear resistance according to claim 1, wherein In the step S3, determining to stir at the first stirring speed or maintain the initial stirring speed for stirring includes: If the sound frequency during the stirring process does not fluctuate and no high-frequency noise is generated, determine to stir at the first stirring speed; If the sound frequency during the stirring process fluctuates or high-frequency noise is generated, determine to maintain the initial stirring speed for stirring.

3. The waterproof coating that takes into account both flexibility and surface rigidity wear resistance according to claim 2, wherein In the step S3, the stirring at the first stirring speed includes raising the rotation speed of the stirring paddle to 600 revolutions per minute for stirring.

4. The waterproof coating that takes into account both flexibility and surface rigid abrasion resistance according to claim 1, wherein In the step S3, judging that high-frequency noise is generated in the sound frequency during the stirring process includes that the time stamp of the high-frequency vibration signal detected by the vibration sensor in the production equipment is consistent with the time stamp of the abnormal sound frequency.

5. The waterproof coating that takes into account both flexibility and surface rigidity wear resistance according to claim 4, characterized in that, In the step S4, determining to stir at the second stirring speed, or, sequentially adding the emulsion GT203, the slurry, the black paste, and the blue paste and continuing to stir at the first stirring speed includes: If abnormal phenomena of bubble generation or irregular vortices occur in the material during the stirring at the first stirring speed, determining to stir at the second stirring speed; If no abnormal phenomena of bubble generation occur in the material during the stirring at the first stirring speed and no irregular vortices occur in the material, determining to sequentially add the emulsion GT203, the slurry, the black paste, and the blue paste and continue to stir at the first stirring speed.

6. The waterproof coating that takes into account both flexibility and surface rigidity wear resistance according to claim 5, wherein In the step S4, determining whether abnormal phenomena of bubble generation occur in the material during the stirring at the first stirring speed includes: Step S4401, obtaining real-time images of the material during the stirring within a preset duration at equal intervals; Step S4402, obtaining the number of bubbles generated within the preset duration and the difference between the area of the largest bubble and the area of the smallest bubble within the preset duration; Step S4403, respectively comparing the number of bubbles generated within the preset duration and the difference between the area of the largest bubble and the area of the smallest bubble within the preset duration with preset thresholds; Step S4404, if both the number of bubbles generated and the difference between the area of the largest bubble and the area of the smallest bubble within the preset duration are greater than the corresponding preset thresholds, determining that abnormal phenomena of bubble generation occur in the material.

7. The waterproof coating that takes into account both flexibility and surface rigidity wear resistance according to claim 6, wherein, In the step S5, determining to continue stirring at the second stirring speed or slowly adding the dissolved thickener includes: If the number of bubbles overflowing from the material during the stirring at the second stirring speed is greater than a preset number or the rising speed of the bubbles is greater than a preset rising speed, determining to continue stirring at the second stirring speed; If the number of bubbles overflowing from the material during the stirring at the second stirring speed is less than or equal to the preset number and the rising speed of the bubbles is less than or equal to the preset rising speed, determining to slowly add the dissolved thickener.

8. The waterproof coating that takes into account both flexibility and surface rigidity wear resistance according to claim 7, characterized in that, The preset number is determined according to the historical average value of the number of bubbles overflowing from the material during the stirring at the second stirring speed.

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