Construction method of antiskid coating

Abstract

The invention discloses a construction method of an anti-skid coating, which comprises the following steps: when detecting that an anti-skid coating is in a half-dry state after finishing coat construction, scattering anti-skid granules on the anti-skid coating for a plurality of times; after each time of anti-skid aggregate scattering is completed, carrying out scattering uniformity detection on the anti-skid aggregate in a target area covered by the current time of scattering; if the detection result is lower than the preset uniformity threshold value, the scattering mode of next-time scattering of the anti-skid aggregates is improved according to the detection result; and according to the improved scattering mode, next-time anti-skid aggregate scattering is carried out until the detection result of next-time anti-skid aggregate scattering is not lower than the preset uniformity threshold value, or until anti-skid aggregate scattering of the anti-skid coating is completed. According to the invention, the step of scattering uniformity detection can be introduced to improve the construction of the anti-skid coating, so that the problem of poor anti-skid effect of the anti-skid coating in a high-humidity environment is solved, the anti-skid effect of the anti-skid coating is improved, and the application requirement of higher anti-skid effect requirement level is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anti-skid, in particular to a construction method of anti-skid coating. BACKGROUND

[0002] Anti-skid coating is a kind of coating with good anti-skid performance. It is applied to the surface with anti-skid demand to improve the friction of the surface and achieve the anti-skid effect to reach the safety level. Anti-skid coating is widely used in many scenes such as parks, factory floors, ship decks, etc. Its core function is to avoid safety accidents caused by sliding of personnel, vehicles and equipment. Due to the particularity of high-humidity environment in power plant, higher requirements are put forward for the anti-skid effect. The anti-skid effect of the existing anti-skid coating in high-humidity environment is not good, and it is difficult to meet the anti-skid requirements of high-humidity environment in power plant. Therefore, the existing anti-skid coating is still insufficient in anti-skid effect, and it is difficult to meet the application requirements with higher anti-skid effect level. SUMMARY

[0003] The present application provides a construction method of anti-skid coating, which introduces a throwing uniformity detection step to improve the construction of anti-skid coating, so as to solve the problem of poor anti-skid effect of anti-skid coating in high-humidity environment, improve the anti-skid effect of anti-skid coating, and meet the application requirements with higher anti-skid effect level.

[0004] In order to achieve the above-mentioned purpose, the embodiment of the present application provides a construction method of anti-skid coating, comprising: When it is detected that the anti-skid coating after the finish coating construction is in a semi-dry state, several times of anti-skid granule throwing are performed on the anti-skid coating; After each anti-skid granule throwing is completed, the throwing uniformity of the anti-skid granule on the target area covered by the current throwing is detected; If the detection result is lower than the preset uniformity threshold, the throwing mode of the next anti-skid granule throwing is improved according to the detection result; The next anti-skid granule throwing is performed according to the improved throwing mode, until the detection result of the next anti-skid granule throwing is not lower than the preset uniformity threshold, or until the anti-skid coating completes the anti-skid granule throwing.

[0005] As an improvement of the above-mentioned scheme, after each anti-skid granule throwing is completed, the throwing uniformity of the anti-skid granule on the target area covered by the current throwing is detected, comprising: After each anti-skid granule throwing is completed, image data of the target area covered by the current throwing is obtained; The area of the target area and the position point of the anti-skid granule are determined according to the image data; Calculate the distance between each position point and several adjacent position points to obtain a distance set of each position point; Calculate the distance variance of all position points according to the average value of the distance set of each position point; Determine the abnormal area of the target area according to the average value and the distance variance; According to the target area and the abnormal area, the detection result of the uniformity detection is obtained.

[0006] As an improvement of the above scheme, the determination of the abnormal area of the target area according to the average value and the distance variance comprises: Determine the abnormal position point of the target area according to the average value and the distance variance; According to the abnormal position point, the abnormal area of the target area is obtained.

[0007] As an improvement of the above scheme, before detecting that the anti-skid coating after the topcoat construction is in a semi-dry state, the method further comprises: Ground pretreatment is performed on the construction area; The pretreated construction area is subjected to primer construction using the mixed film-forming resin; The construction area after primer construction is subjected to topcoat construction using the mixed film-forming resin.

[0008] As an improvement of the above scheme, the film-forming resin comprises water-based epoxy resin, water-based pigment and additives, and the preparation method of the water-based epoxy resin is: A modified epoxy resin is prepared according to epoxy resin, anhydrous ethanol and ethylene glycol butyl ether; An emulsifier is prepared according to polyethylene glycol and the epoxy resin; A water-based epoxy resin is prepared according to the modified epoxy resin and the emulsifier.

[0009] As an improvement of the above scheme, the modified epoxy resin is prepared according to epoxy resin, anhydrous ethanol and ethylene glycol butyl ether, comprising: The epoxy resin, anhydrous ethanol and ethylene glycol butyl ether are taken in a predetermined proportion and added to a first reactor; The inside of the first reactor is heated to 60°C and kept constant; The substances in the first reactor are brought into a molten state by stirring; Nitrogen is introduced into the first reactor, and after the air in the first reactor is discharged, p-aminobenzoic acid is added to the first reactor; The temperature inside the first reactor is raised to 80°C and kept constant, and after a predetermined time of continuous reaction, a modified epoxy resin is obtained.

[0010] As an improvement of the above scheme, the emulsifier is prepared based on polyethylene glycol and the epoxy resin, comprising: Polyethylene glycol and the epoxy resin are taken as raw materials in a preset proportion and placed into a second reactor, and the interior of the second reactor is heated to 90° C. and maintained at a constant temperature so that the substances in the second reactor are in a molten state; Stirring for 30 minutes to fully mix the reactants in the second reactor; The temperature in the second reactor is raised to 180° C. and kept constant for a period of time, and then a certain proportion of potassium persulfate is added as a catalyst, and the constant temperature is maintained for a predetermined reaction time to obtain an emulsifier.

[0011] As an improvement of the above scheme, the preparation of the waterborne epoxy resin according to the modified epoxy resin and the emulsifier comprises: Adding the modified epoxy resin and the emulsifier into the third reactor according to a preset proportion, stirring and mixing thoroughly, and adding deionized water dropwise; When phase inversion occurs, deionized water is added dropwise to adjust the solid content to obtain a waterborne epoxy resin.

[0012] As an improvement of the above scheme, the preparation method of the water-based pigment is: Add surfactant, dispersant, cosolvent, defoamer and deionized water to the dispersion preparation device, stir evenly, add pigment powder to the dispersion preparation device, disperse at a speed of 1200r / min for 3 hours, let it stand, filter, let it stand again, and filter again to obtain water-based pigment.

[0013] As an improvement to the above solution, before detecting that the anti-slip coating after topcoat application is in a semi-dry state, the method further includes: The surface of the anti-slip granular material is modified.

[0014] Compared with the prior art, the embodiment of the present invention discloses a method for applying an anti-slip coating. When it is detected that the anti-slip coating after the topcoat application is in a semi-dry state, anti-slip granular materials are scattered on the anti-slip coating several times. After each scattering of the anti-slip granular materials, the target area covered by the current scattering is detected for scattering uniformity. If the detection result is lower than a preset uniformity threshold, the scattering method of the next anti-slip granular materials is improved according to the detection result. The next anti-slip granular materials are scattered according to the improved scattering method until the detection result of the next scattering of the anti-slip granular materials is not lower than the preset uniformity threshold, or until the anti-slip coating completes the scattering of the anti-slip granular materials. The scattering uniformity detection step can be introduced to improve the construction of the anti-slip coating to solve the problem of poor anti-slip effect of the anti-slip coating in a high-humidity environment, improve the anti-slip effect of the anti-slip coating, and thus meet the application requirements of higher levels of anti-slip effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic flow chart of a construction method of an anti-slip coating provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0017] It should be noted that the terms "comprises" and "specifically" and any variations thereof in the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or are inherent to these processes, methods, products or apparatuses.

[0018] See also Figure 1 , Figure 1 1 is a flow chart of a method for applying an anti-slip coating according to an embodiment of the present invention. The method comprises: S1, when it is detected that the anti-slip coating after the topcoat is applied is in a semi-dry state, throwing anti-slip granular material on the anti-slip coating several times; S2, after each scattering of the anti-skid granular material is completed, performing a scattering uniformity test of the anti-skid granular material on the target area covered by the current scattering; S3, if the detection result is lower than the preset uniformity threshold, improving the scattering method of the next anti-slip granular material scattering according to the detection result; S4, scattering the anti-skid granular material for the next time according to the improved scattering method, until the detection result of the next anti-skid granular material scattering is not lower than the preset uniformity threshold, or until the anti-skid coating layer completes the scattering of the anti-skid granular material.

[0019] It is worth mentioning that the scattering is a gradual process, and there may be uneven phenomena in the process. Analyzing the uniformity of scattering can improve the subsequent scattering method in time. The anti-skid effect is enhanced from two aspects: first, the composition of the anti-skid coating, which mainly determines the anti-skid effect of the anti-skid coating and is the basis of the anti-skid effect; second, the way in the construction stage. Although the coating has good anti-skid effect, the steps and points for attention in construction are the key to whether the performance of the anti-skid coating can be truly played. The embodiment of the present application detects the uniformity of the anti-skid granules to detect the quality of the coating, which can detect the anti-skid granule non-scattering area and the anti-skid granule scattering excessive concentration area. The anti-skid coating is mainly composed of film-forming resin, anti-skid granules, additives, pigments and the like. The components are mixed uniformly according to the set proportion to form a stable anti-skid coating system.

[0020] Specifically, the step S2 comprises: S21, obtaining image data of a target area covered by the current scattering of anti-skid granules after completing each time of scattering of anti-skid granules; S22, determining the area of the target area and the position points of the anti-skid granules according to the image data; S23, calculating the distance between each position point and a plurality of adjacent position points to obtain a distance set of each position point; S24, calculating the distance variance of all position points according to the average value of the distance set of each position point; S25, determining the abnormal area of the target area according to the average value and the distance variance; S26, obtaining the detection result of the scattering uniformity detection according to the target area and the abnormal area.

[0021] Specifically, the step S2 comprises: determining the abnormal position points of the target area according to the average value and the distance variance; obtaining the abnormal area of the target area according to the abnormal position points.

[0022] For example, before the top coat is cured, the anti-skid granules are scattered on the top coat in a scattering manner. In the embodiment of the present application, the anti-skid granules are natural rubber particles with a particle size range of 0.7-1.1 mm and 1.5-1.9 mm. The particle size is selected to achieve the best anti-skid effect on the power plant floor, reduce the impact of the plum rain season, and can be selected according to the specific construction environment. When scattering, the scattering must be uniform. The target area (anti-skid coating) is scattered in a continuous N times small amount scattering manner to avoid excessive scattering that cannot be compensated. Uniform scattering can better increase the friction and anti-skid effect. The uniformity of the anti-skid granule scattering is detected by image processing. In order to obtain images with obvious contrast and highlight the anti-skid granules, a color with obvious contrast between the pigment powder and the natural rubber particles can be selected, or a color with obvious contrast in different color channels of the image. The image of the anti-skid floor is collected by following the scattering vehicle, which can obtain image data in time, analyze the uniformity of the scattering, and improve the subsequent scattering method in time. For example, the ground image is obtained by a camera; the area (target area) on the image corresponding to a single scattering area is intercepted and recorded as area The area of the area is calculated; the position points of the natural rubber particles on the image are extracted on the area ; the distances between the position points and adjacent position points are calculated , , wherein n represents the number of natural rubber particles, and the subscript represents the number of position points around the natural rubber particles; the principle is followed that there is no other position point on the line connecting adjacent position points; the average value of the distances of the position points is calculated , , ; the variance of the distances of the position points is obtained , , ; whether the average value and the variance of the distances of the position points are greater than a specified threshold value (the threshold value needs to be set according to different requirements of the floor and different scattering particle sizes, and different anti-skid requirements. The threshold value is different in different cases. The threshold value can be 0.5 mm, 1 mm, 5 mm, etc.). If one of them does not meet the requirement, there is a non-uniform point in the area. If the average value is less than the specified threshold value, it is considered that the scattering is too concentrated. The area of the image of the area where the scattering is too concentrated is calculated ; the adjacent non-uniform points are connected by straight lines to form an area, and the total area of the edges of the formed area on the image is calculated These uneven points, as long as they appear, will not be single, generally as long as they appear, there will be multiple points in an area, and they must be connected to form a closed area. This area cannot contain points judged to be uniform, so the division of the area must follow this principle; the uneven degree (which is a percentage, calculated based on the area before, and the distance value has no meaning here) is If it is less than the set value, it is considered qualified, otherwise it is not. The embodiment of the present application can detect the area where the natural rubber particles are not scattered, and also can detect the area where the natural rubber particles are scattered too much. After the particle scattering is completed, wait for the paint to dry completely.

[0023] Further, before the anti-skid coating after the topcoat construction is detected to be in a semi-dry state, the method further comprises: S101, ground pretreatment is performed on the construction area; S102, a mixed film-forming resin is used to perform primer construction on the pretreated construction area; S103, a mixed film-forming resin is used to perform topcoat construction on the primer-constructed construction area.

[0024] Illustratively, the ground of a power plant workshop is constructed with anti-skid paint to achieve the effect of anti-skid.

[0025] The construction process includes the following steps: (1) ground finishing: when laying anti-skid paint on the ground, the ground needs to be treated, including cleaning, leveling and drying, to improve the adhesion of the ground. In order to obtain a clean and tidy ground and exclude the influence of other substances on the anti-skid effect, the oil stains, dust and other impurities on the ground need to be cleaned. In the present application, the construction area is first closed, high-pressure gas is used to clean the ground, and is placed for 24 hours. After cleaning, air purification gas is used to collect dust in the air. After cleaning, in order to make the flatness of the ground meet the requirements and improve the anti-skid effect, the area to be constructed is leveled and repaired by grinding and sandblasting. After leveling and repairing, the ground is dried to make the water content of the ground meet the requirements of construction. Before the paint surface construction, the ground to be constructed needs to be cleaned again, which is the last cleaning to provide the best environment for painting.

[0026] (2) Primer application: using the prepared film-forming resin, which has already been added with additives and water-based pigments, check if there are bubbles, which is a key step for painting, bubbles will seriously affect the forming effect of the film-forming resin and also affect the anti-skid effect. Use brushing, rolling or spraying methods to apply the primer on the cleaned floor. During the primer application process, the thickness and uniformity of the primer should be controlled, because too thick coating may cause cracking or peeling, and too thin coating may affect the anti-skid effect. Complete the primer application by 4 times, and leave enough drying time between each layer of coating to obtain the best coating effect.

[0027] (3) Topcoat application: after the primer application is completed, use the prepared film-forming resin, which has already been added with additives and water-based pigments, check if there are bubbles, the steps are similar to the primer. It should be noted that the primer and topcoat can be applied by brushing, rolling or spraying methods.

[0028] Specifically, the film-forming resin comprises water-based epoxy resin, water-based pigments and additives, and the preparation method of the water-based epoxy resin is as follows: Preparation of modified epoxy resin according to epoxy resin, anhydrous ethanol and ethylene glycol butyl ether; Preparation of emulsifier according to polyethylene glycol and the epoxy resin; Preparation of water-based epoxy resin according to the modified epoxy resin and the emulsifier.

[0029] It should be noted that the film-forming resin is the base material of the anti-skid coating, which provides the purpose of film-forming for the entire anti-skid coating, and is usually selected from phenolic resin, alkyd resin, chlorinated rubber, epoxy resin or polyurethane resin, etc. The film-forming resin is generally used in the primer coating and topcoat coating, and its film-forming purpose has two aspects, one is to fix the anti-skid granules, and the other is to protect the substrate from damage, and in the embodiment of the present application, the substrate is the floor or ground of the power plant building. In the embodiment of the present application, the film-forming resin is selected as the main part, and water-based pigments and additives are added to prepare it. The water-based epoxy resin is environmentally friendly, non-toxic, easy to apply, and has good anti-skid performance, which can improve the anti-skid performance of the coating under the support of the anti-skid granules.

[0030] More specifically, the preparation of modified epoxy resin according to epoxy resin, anhydrous ethanol and ethylene glycol butyl ether comprises: Take epoxy resin, anhydrous ethanol and ethylene glycol butyl ether according to the predetermined proportion ratio and add them to the first reactor; Heat the inside of the first reactor to 60°C and keep it at a constant temperature; Make the substances in the first reactor in a molten state by stirring; Introduce nitrogen into the first reactor, discharge the air in the first reactor, and then add p-aminobenzoic acid into the first reactor; After the temperature inside the first reactor is raised to 80°C and kept constant for a predetermined time, the modified epoxy resin is obtained.

[0031] For example, the proportions are as follows The epoxy resin, anhydrous ethanol and ethylene glycol butyl ether are taken as raw materials and put into the reactor. The temperature inside the reactor is heated to 60°C and kept constant. The substances in the reactor are made into a molten state by stirring. Nitrogen is introduced into the reactor to remove air. The modified material p-aminobenzoic acid is added to the reactor. The temperature inside the reactor is raised to 80°C and kept constant. The reaction is carried out for a predetermined time (which can be set as needed). The modified epoxy resin is obtained. It can be understood that the original epoxy resin has defects, which will have a negative impact on the anti-skid coating used on the floor of the power plant. In order to make the anti-skid coating suitable for the floor of the power plant, the original epoxy resin needs to be modified before the preparation of the water-based epoxy resin. This can effectively improve the adhesion, slip resistance and durability of the anti-skid coating.

[0032] More specifically, the emulsifier is prepared from the polyethylene glycol and the epoxy resin, which includes: The polyethylene glycol and the epoxy resin are taken as raw materials and put into the second reactor in the predetermined proportions. The temperature inside the second reactor is heated to 90°C and kept constant, so that the substances in the second reactor are in a molten state. After stirring for 30 min to fully mix the reactants in the second reactor, The temperature in the second reactor is raised to 180°C and kept constant for a period of time. A certain proportion of potassium persulfate is added as a catalyst. The temperature is kept constant for a predetermined time to obtain the emulsifier.

[0033] For example, the proportions are as follows The polyethylene glycol and the epoxy resin are taken as raw materials and put into the reactor. The temperature inside the reactor is heated to 90°C and kept constant, so that the substances in the reactor are in a molten state. Stirring for 30 min fully mixes the reactants. The temperature in the reactor is raised to 180°C and kept constant for a period of time. 0.3% of potassium persulfate by mass of the total reactants is added as a catalyst. The reaction is kept for 4 h to obtain the emulsifier, which is kept in a liquid state.

[0034] More specifically, the water-based epoxy resin is prepared from the modified epoxy resin and the emulsifier, which includes: The modified epoxy resin and the emulsifier are added to the third reactor in the predetermined proportions. They are fully mixed by stirring. Deionized water is added dropwise. When phase inversion occurs, deionized water is added to adjust the solid content. The water-based epoxy resin is obtained.

[0035] Exemplary, the proportion of the ingredients The modified epoxy resin and the emulsifier are added to a reactor, stirred and mixed thoroughly, and deionized water is added dropwise. When phase inversion occurs, a certain amount of deionized water is added to adjust the solid content, and an aqueous epoxy resin emulsion is obtained.

[0036] Specifically, the preparation method of the aqueous pigment is: In a dispersion preparation device, a surfactant, a dispersant, a cosolvent, a defoaming agent, and deionized water are added, stirred uniformly, and then pigment powder is added to the dispersion preparation device. The dispersion is carried out at a speed of 1200 r / min for 3 hours, and then the dispersion is filtered, rested, and filtered again to obtain the aqueous pigment.

[0037] The aqueous pigment is used to prepare various colors, which not only makes the floor of the factory beautiful, but also can be used to distinguish different areas or different safety levels. The preparation method of the aqueous pigment is: in a dispersion preparation device, a surfactant, a dispersant, a cosolvent, a defoaming agent, and deionized water are added as needed, stirred uniformly, and then pigment powder is added. The sand mill is operated at a speed of 1200 r / min for 3 hours, and then the dispersion is filtered, rested, and filtered again to obtain the aqueous pigment.

[0038] Specifically, the additives help to improve the performance and application performance of the coating, and there are many kinds of additives, mainly including: a curing agent, which can be selected from amidoamine or polyamide. The curing agent can promote the curing reaction of the film-forming resin, control the curing process of the film-forming resin, ensure that the coating is completely cured within a specified time, and form a strong coating. The curing agent can also improve the anti-skid performance, which can significantly improve the friction coefficient of the floor, thereby reducing the risk of slipping and falling; Defoaming agent, also known as bubble remover or bubble breaker, is added to eliminate the foam that affects production in the process of industrial production; The leveling agent is a commonly used coating additive, which can promote the formation of a flat, smooth and uniform coating film during the drying and film-forming process. There are many types of leveling agents, and the types of leveling agents used in different coatings are not the same.

[0039] In addition to the above-mentioned additives, wetting agents, thixotropic agents, anti-aging agents, light stabilizers, flame retardants, and toughening agents are generally added to the anti-skid coating, which can be added according to actual needs. The aqueous epoxy resin, the additive, the aqueous pigment, the wetting agent, the thixotropic agent, the anti-aging agent, the light stabilizer, the flame retardant, and the toughening agent are mixed to obtain the final film-forming resin.

[0040] Further, before the anti-skid coating after the topcoat construction is in a semi-dry state, the method further comprises: S104, the surface of the anti-skid granules is modified.

[0041] It is worth mentioning that the anti-skid granules are additives for improving the anti-skid performance of the paint film, and the film-forming resin used in the coating has certain anti-skid effect, and the anti-skid granules play a great role in greatly imparting the anti-skid ability of the paint film to achieve the required anti-skid effect. The anti-skid granules can be rubber-based elastic granules or hard granules to increase the friction and anti-skid effect. The surface treatment of the anti-skid granules can increase the adhesion of the anti-skid granules to the base material (film-forming resin), reduce the wear rate, and improve the service life of the anti-skid coating. When used in the coating of the factory floor, it can prevent people from slipping and falling. The anti-skid granules select natural rubber particles, wherein the particle size of the natural rubber particles has two main ranges, 0.7-1.1mm and 1.5-1.9mm; other particle size ranges of natural rubber particles can also be used on the floor of different areas in the factory to distinguish the requirements of different areas, such as the particle size range near some equipment can be 1.5-1.9mm and 4.2-4.7mm. After selecting the type of anti-skid granules, the surface of the anti-skid granules needs to be treated due to the influence of the surface of the granules. The particle size range of commonly used natural rubber particles is 0.7-1.1mm and 1.5-1.9mm, which will be specifically described.

[0042] In order to eliminate the influence of the smooth surface of the natural rubber particles and the adhesion of impurities, and improve the bonding strength between the natural rubber particles and the film-forming resin, a saturated NaOH solution is selected, the natural rubber particles are uniformly added to the NaOH solution at a fixed weight per minute, the NaOH solution is stirred during the addition (the purpose is to reduce the mixing step of the natural rubber particles, which can be fully mixed here), after the natural rubber particles are added, the stirring is maintained for 5min, then it is placed for 25min, filtered, washed, and finally dried under the condition of continuous ventilation at a temperature of 35℃, thereby obtaining the anti-skid granules.

[0043] The natural rubber particles of different particle sizes selected in the embodiment of the application can make the anti-skid granules lay on the film-forming resin more uniformly, and the anti-skid particles of different particle sizes can compensate for each other in uniformity, solving the problem that the conventional and single-particle-size anti-skid particles are prone to uneven scattering. The natural rubber particles of different particle sizes in the embodiment of the application do not need to be mixed separately, and it is verified by tests that they are uniformly stirred during surface treatment and the uniformity meets the requirements. After the surface treatment of the natural rubber particles in the embodiment of the application, the original smooth surface disappears, the roughness of the surface is improved, and the adhesion between the natural rubber particles and the film-forming resin is enhanced.

[0044] Alternatively, the anti-skid granules can also be selected from waste tires and polyurethane elastomer particles, or silica powder, silicon carbide, diamond sand, etc., but all need to be modified on the surface.

[0045] The construction method of the anti-skid paint disclosed by the embodiment of the present application can improve the construction of the anti-skid paint by introducing the uniformity detection step of the anti-skid granule scattering, so as to solve the problem of poor anti-skid effect of the anti-skid paint in a high-humidity environment, improve the anti-skid effect of the anti-skid paint, and thus meet the application requirements of a higher anti-skid effect level.

[0046] The above is the preferred embodiment of the present application. It should be noted that for ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements are also considered within the protection scope of the present application.

Claims

1. A method for applying an anti-slip coating, characterized in that: include: When it is detected that the anti-slip coating after the topcoat is applied is in a semi-dry state, the anti-slip granular material is thrown on the anti-slip coating several times; After each scattering of the anti-skid granular material is completed, the scattering uniformity of the anti-skid granular material is detected on the target area covered by the current scattering; If the test result is lower than the preset uniformity threshold, the scattering method of the next anti-slip granular material scattering is improved according to the test result; The next anti-skid granular material is scattered according to the improved scattering method until the detection result of the next anti-skid granular material scattering is not lower than the preset uniformity threshold, or until the anti-skid coating completes the scattering of the anti-skid granular material.

2. The construction method of the anti-slip coating according to claim 1, wherein: After each scattering of the anti-skid granular material is completed, the scattering uniformity of the anti-skid granular material is detected on the target area covered by the current scattering, including: After each scattering of the anti-skid granular material is completed, image data of the target area covered by the current scattering is obtained; Determine the area of ​​the target region and the location of the anti-slip granular material according to the image data; Calculate the distance between each location point and several adjacent location points to obtain the distance set of each location point; Calculate the distance variance of all location points based on the average value of the distance set of each location point; determining an abnormal area of ​​the target area according to the average value and the distance variance; A detection result of the scattering uniformity detection is obtained according to the target area and the abnormal area.

3. The construction method of the anti-slip coating according to claim 2, characterized in that: The determining of the abnormal area of ​​the target area according to the average value and the distance variance includes: Determine abnormal location points in the target area according to the average value and the distance variance; The abnormal area of ​​the target area is obtained according to the abnormal location point.

4. The construction method of the anti-slip coating according to claim 1, wherein: Before detecting that the anti-slip coating after topcoat application is in a semi-dry state, the method further comprises: Carry out ground pretreatment in the construction area; Use the mixed film-forming resin to prime the pre-treated construction area; Use the mixed film-forming resin to apply topcoat to the construction area after the primer is applied.

5. The construction method of the anti-slip coating according to claim 4, characterized in that: The film-forming resin includes a water-based epoxy resin, a water-based pigment and an additive. The preparation method of the water-based epoxy resin is as follows: Modified epoxy resin is prepared according to epoxy resin, anhydrous ethanol and ethylene glycol butyl ether; preparing an emulsifier based on polyethylene glycol and the epoxy resin; A waterborne epoxy resin is prepared according to the modified epoxy resin and the emulsifier.

6. The construction method of the anti-slip coating according to claim 5, characterized in that: The modified epoxy resin is prepared according to the epoxy resin, anhydrous ethanol and ethylene glycol butyl ether, comprising: Add epoxy resin, anhydrous ethanol and ethylene glycol butyl ether into the first reactor according to a preset proportion; The interior of the first reactor was heated to 60°C and kept at a constant temperature; The material in the first reactor is brought into a molten state by stirring; introducing nitrogen into the first reactor, exhausting the air from the first reactor, and then adding p-aminobenzoic acid into the first reactor; The internal temperature of the first reactor was raised to 80° C. and kept constant, and the reaction was continued for a predetermined time to obtain a modified epoxy resin.

7. The construction method of the anti-slip coating according to claim 5, characterized in that: The emulsifier is prepared based on polyethylene glycol and the epoxy resin, comprising: Polyethylene glycol and the epoxy resin are taken as raw materials in a preset proportion and placed into a second reactor, and the interior of the second reactor is heated to 90° C. and maintained at a constant temperature so that the substances in the second reactor are in a molten state; Stirring for 30 minutes to fully mix the reactants in the second reactor; The temperature in the second reactor is raised to 180° C. and kept constant for a period of time, and then a certain proportion of potassium persulfate is added as a catalyst, and the constant temperature is maintained for a predetermined reaction time to obtain an emulsifier.

8. The construction method of the anti-slip coating according to claim 5, characterized in that: The method of preparing a waterborne epoxy resin according to the modified epoxy resin and the emulsifier comprises: Adding the modified epoxy resin and the emulsifier into the third reactor according to a preset proportion, stirring and mixing thoroughly, and adding deionized water dropwise; When phase inversion occurs, deionized water is added dropwise to adjust the solid content to obtain a waterborne epoxy resin.

9. The construction method of the anti-slip coating according to claim 5, characterized in that: The preparation method of the water-based pigment is: Add surfactant, dispersant, cosolvent, defoamer and deionized water to the dispersion preparation device, stir evenly, add pigment powder to the dispersion preparation device, disperse at a speed of 1200r / min for 3 hours, let it stand, filter, let it stand again, and filter again to obtain water-based pigment.

10. The construction method of the anti-slip coating according to claim 1, wherein: Before detecting that the anti-slip coating after topcoat application is in a semi-dry state, the method further comprises: The surface of the anti-slip granular material is modified.

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