High-viscosity anti-skid waterproof asphalt coating and preparation method thereof

Abstract

The invention discloses a high-viscosity anti-skid waterproof asphalt coating, which comprises the following components in parts by weight: 40-60% of petroleum asphalt, 10-20% of asphalt, 10-20% of a curing agent, 10-20% of a curing agent, 10-20% of a curing agent, and the balance of water. 15%-25% of light-cured resin; 5%-10% of a tackifier; 1%-3% of a photoinitiator; 10%-20% of an anti-skid filler; and 0.5%-2% of an auxiliary agent. According to the high-viscosity anti-slip waterproof asphalt coating disclosed by the invention, through the synergistic modification effect of the light-cured resin and the tackifier on the petroleum asphalt, the bonding cohesion can be improved, the water resistance can be enhanced, and rapid curing, high bonding power, slip resistance and long-acting waterproof performance can be realized. The coating is environment-friendly and efficient, is suitable for various engineering scenes, and is particularly suitable for projects with high requirements on construction efficiency and safety performance; the preparation method is simple in process flow, low in equipment investment and operation cost and beneficial to popularization and application.

Description

Technical Field

[0001] The present invention relates to the technical field of coatings, and in particular to a high-viscosity, anti-skid, and waterproof asphalt coating based on light-curing technology and a method for preparing the high-viscosity, anti-skid, and waterproof asphalt coating. Background Art

[0002] With the acceleration of urbanization in my country, the importance of building waterproofing in ensuring structural durability and operational safety has become increasingly prominent. Statistics show that the leakage rate of building roofs in my country exceeds 95%, and that of underground projects exceeds 50%. Traditional asphalt-based waterproofing coatings, due to issues such as slow curing, insufficient adhesion, and poor anti-slip properties, are no longer able to meet the demands of modern projects. This is especially true in specialized applications such as underground vertical walls and sloping roofs, where the waterproofing material often fails to adhere firmly to the base or surface membrane, leading to frequent slippage. This significantly increases the risk of leakage, severely impacting project quality and service life.

[0003] In the face of these problems, the industry has made many attempts. For example, by adding rubber modifiers to improve the flexibility of asphalt waterproof coatings, it can better adapt to the expansion and contraction of the base layer. However, the improvement in bonding and anti-skid properties is not significant, and it may also lead to a decrease in the durability of the coating and shorten its service life. By adding a large amount of rigid fillers such as talcum powder and calcium carbonate, the anti-skid performance is improved, but the flexibility of the material is sacrificed. Although the use of non-curing system asphalt waterproof coatings has improved the bonding performance to a certain extent, the construction efficiency is low and on-site heating is required for construction, which not only consumes a lot of energy but also causes environmental pollution. At the same time, in a high temperature environment, the non-curing coating is easy to flow, affecting the construction quality and anti-skid effect.

[0004] In addition, the invention patent CN115011252B discloses a high-viscosity and anti-water-skid rubber asphalt waterproof coating and its preparation method, and the invention patent CN118725739B discloses a high-viscosity and anti-skid rubber asphalt waterproof coating and its preparation method. Both of their asphalts use water-based emulsified asphalt as the main base material. After construction, the coating film must wait for the moisture to completely dry before the next step can be carried out. When construction is carried out in the rainy season or in a confined space, the drying time is greatly extended, resulting in the final waterproof performance of the material being seriously dependent on the climatic conditions of the project site.

[0005] For example, invention patent CN107652414B discloses a light-cured single-component water-based epoxy resin, waterproof material and preparation method thereof, which uses the method of adding SBR latex and water-based epoxy resin while stirring the emulsified asphalt cooled to room temperature into a reactor. This normal temperature stirring process makes it difficult to mix the emulsion, latex and water-based resin into a homogeneous system, and the mixed emulsion may be stratified (such as precipitation within 24 hours). In addition, it adopts the idea of light curing, and has the advantages of good long-term room temperature light-proof storage stability and long storage time under no light conditions. However, the product does not have the advantage of fast drying in terms of construction drying speed. In the implementation cases, the surface drying time is 2 to 3 hours, and the actual drying time is 7 to 10 hours. The drying data is slower than that of non-light-cured waterproof materials. Light curing is only reflected in the storage resistance.

[0006] The disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed before the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of this application. Summary of the Invention

[0007] In view of this, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a high-viscosity, anti-skid and waterproof asphalt coating based on light curing technology.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A high-viscosity, anti-skid, and waterproof asphalt coating, comprising the following components in parts by weight:

[0010] Petroleum asphalt 40% to 60%;

[0011] Light-curing resin 15% to 25%;

[0012] Thickener 5% to 10%;

[0013] Photoinitiator 1% to 3%;

[0014] Anti-slip filler 10% to 20%;

[0015] Additives 0.5%~2%.

[0016] According to some preferred embodiments of the present invention, the petroleum asphalt is 70# petroleum asphalt and / or 90# petroleum asphalt with a colloid content of more than 20%, which provides basic waterproof performance.

[0017] According to some preferred embodiments of the present invention, the photocurable resin comprises epoxy acrylate and polyurethane acrylate. Specifically, the photocurable resin comprises a composite system of epoxy acrylate and polyurethane acrylate. The epoxy acrylate imparts adhesive cohesion and rapid photosensitivity, preferably bisphenol A epoxy acrylate; the polyurethane acrylate enhances flexibility and adapts to substrate deformation, preferably an aliphatic polyurethane acrylate.

[0018] According to some preferred embodiments of the present invention, the photocurable resin comprises, by weight, 45% to 75% of epoxy acrylate and 25% to 55% of polyurethane acrylate.

[0019] According to some preferred embodiments of the present invention, the photoinitiator is a benzophenone derivative and / or a thioxanthone substance.

[0020] According to some preferred embodiments of the present invention, the tackifier is one or more of C5 petroleum resin, C9 petroleum resin, terpene resin, or polyisobutylene, and works in conjunction with the photocurable resin to enhance interfacial bonding strength while improving cohesion. The polar groups in the tackifier can interact with the polar components in the asphalt. The tackifier molecules fill the microscopic gaps within the asphalt, forming hydrophobic groups to resist the effects of water on the asphalt's bonding properties. Together with the network structure formed after curing of the photocurable resin, they enhance the asphalt's cohesive strength, effectively preventing the asphalt from sliding and deforming at high temperatures, improving its high-temperature stability, and maintaining good bonding strength at low temperatures, ensuring workability and performance in cold environments. At the same time, the protective film formed after curing of the photocurable resin prevents oxygen, heat, and moisture from penetrating deeply into the asphalt. The tackifier fills the internal pores of the asphalt, reducing the diffusion channels for gas and water. The two synergistically slow the rate of thermal oxidative aging of the asphalt and improve the coating's water resistance.

[0021] According to some preferred embodiments of the present invention, the anti-slip filler is composed of nano-silicon dioxide and silicon carbide. Preferably, nano-silicon dioxide and silicon carbide are compounded in a mass ratio of 1:0.9-1.1 to form the anti-slip filler, and more preferably, the mass ratio of nano-silicon dioxide to silicon carbide is 1:1. Active groups such as hydroxyl groups on the surface of nano-silicon dioxide can chemically bond with the modified asphalt network structure, improving the bonding strength between the filler and the substrate. Silicon carbide can form a microscopic rough structure during the film-forming process of the coating, and the two together enhance the adhesion of the coating to the substrate. At the same time, the filler has a certain degree of hydrophobicity, which can improve the water resistance and thermal stability of the coating.

[0022] According to some preferred embodiments of the present invention, the auxiliary agent is a weathering auxiliary agent, which is a benzotriazole UV absorber and / or a hindered phenol antioxidant.

[0023] According to some preferred embodiments of the present invention, the surface drying time of the high-viscosity, anti-skid and waterproof asphalt coating is less than or equal to 3 minutes, the bonding strength is greater than or equal to 2.8 MPa, and the peel strength is greater than or equal to 2.4 MPa.

[0024] The present invention also provides a method for preparing the high-viscosity, anti-skid and waterproof asphalt coating as described above, comprising the following steps:

[0025] The petroleum asphalt is heated to 160-180°C, a tackifier and a light-curing resin are added, and after uniform mixing, the temperature is lowered to 120-140°C, a photoinitiator is added, and a high-speed shearing device (5000-8000 r / min) is used to disperse for 30-60 minutes to ensure uniform dispersion to form a photosensitive prepolymer; an anti-skid filler and a weather-resistant additive are added, and after dispersion treatment, the high-viscosity, anti-skid and waterproof asphalt coating is obtained.

[0026] In some embodiments, a method for preparing a high-viscosity, anti-skid, and waterproof asphalt coating comprises the following steps:

[0027] Heat petroleum asphalt to 160-180°C, add tackifier and light-curing resin, and shear and stir at 2500-3500 r / min for 1-2 hours to form a uniform mixture. Cool to 120-140°C, add photoinitiator, and continue high-speed shear mixing at 5000-8000 r / min for 0.5-1 hour to form a photosensitive prepolymer. Add anti-skid filler and weathering agent, and process in a high-speed disperser (5000-6000 r / min) for 0.5-1 hour to ensure uniform dispersion of the nanofiller, thereby obtaining the high-viscosity, anti-skid, and waterproof asphalt coating.

[0028] Due to the adoption of the above technical solutions, the present invention offers significant advantages over existing technologies in that: The high-viscosity, anti-skid, and waterproof asphalt coating of the present invention enhances cohesive strength and water resistance through the synergistic modification of petroleum asphalt by a photocurable resin and a tackifier. The polar groups in the tackifier interact with the polar components in the asphalt, filling the microscopic gaps within the asphalt and forming hydrophobic groups that counteract the effects of water on the asphalt's adhesion. Together with the network structure formed after curing with the photocurable resin, the coating enhances the asphalt's cohesive strength, effectively preventing slippage and deformation at high temperatures and improving its high-temperature stability. Furthermore, the coating maintains good bond strength at low temperatures, ensuring workability and performance in cold environments. The active groups, such as hydroxyl groups, on the surface of the nano-silica chemically bond with the modified asphalt network, enhancing the bonding strength between the filler and the substrate. Silicon carbide forms a microscopic roughness during the film-forming process, which together enhances the coating's adhesion to the substrate. The filler's hydrophobicity enhances the coating's water resistance and thermal stability, resulting in rapid curing, high adhesion, anti-skid properties, and long-lasting waterproofing. The coating is environmentally friendly and efficient, suitable for a variety of engineering scenarios, especially for projects with high requirements for construction efficiency and safety performance; the preparation method has a simple process flow, low equipment investment and operating costs, and is conducive to promotion and application. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0030] The examples involve the addition amounts of various substances, where "parts" are by weight unless otherwise specified. Unless otherwise specified, all raw materials in the following examples are commercially available or prepared by conventional methods in the art.

[0031] Some of the raw materials and manufacturer's brands in the examples are as follows:

[0032] Epoxy acrylates: allnex bisphenol A epoxy acrylate EBECRYL605 / 20; Covestro bisphenol A epoxy acrylates AgiSyn 1030 and AgiSyn 1010;

[0033] Polyurethane acrylates: Covestro's aliphatic polyurethane acrylates AgiSyn 530 and NeoRad U-24-25Z; Guangyi Chemical's aliphatic polyurethane acrylate EasepiU600;

[0034] Benzophenone derivatives: RYOJI photoinitiator 522, RYOJI photoinitiator 539;

[0035] Thioxanthone: Shanghe photoinitiator ITX2, BASF photoinitiator ITX;

[0036] C5 petroleum resin, C9 petroleum resin, terpene resin or polyisobutylene: Shandong Maofa C9 petroleum resin; Ruifeng C9 petroleum resin; Shandong Fangda C5 petroleum resin; Kraton terpene resin SYLVARES TM 1150; Shandong Tianzhao Chemical 2021-TZ-060 terpene resin; South Korea's Daelim PB1300 polyisobutylene; BASF N50 / B50 polyisobutylene.

[0037] Benzotriazole UV absorbers and / or hindered phenol antioxidants: Rianlon UV-1130 light stabilizer; BASF Tinuvin P UV absorber; Rianlon antioxidant 1520; BASF antioxidant B225.

[0038] The high-viscosity, anti-skid, and waterproof asphalt coating based on light-curing technology of the present invention has a fast curing characteristic, can form a strong waterproof coating in a short time, reduce dependence on environmental conditions, and significantly shorten the construction period; it has high bonding strength and can be tightly bonded to various base surfaces, effectively resisting base deformation and external forces, and preventing coating peeling; at the same time, it has excellent anti-skid performance, ensuring that there is no risk of slipping and falling after the facade roll is pasted, effectively solving the problem of adapting to base deformation and construction convenience. Specifically, the high-viscosity, anti-skid, and waterproof asphalt coating of the present invention contains the following ingredients, measured by weight:

[0039] Petroleum asphalt 40% to 60%;

[0040] Light-curing resin 15% to 25%;

[0041] Thickener 5% to 10%;

[0042] Photoinitiator 1% to 3%;

[0043] Anti-slip filler 10% to 20%;

[0044] Additives 0.5%~2%.

[0045] The preferred composition is 50% to 60% petroleum asphalt; 1% to 2% additives. The petroleum asphalt is 70# petroleum asphalt and / or 90# petroleum asphalt with a colloidal content of 20% or more, providing basic waterproofing properties. The photocurable resin comprises, by weight, 45% to 75% epoxy acrylate and 25% to 55% polyurethane acrylate. The photoinitiator is a benzophenone derivative and / or a thioxanthone. The tackifier is one or more of C5 petroleum resin, C9 petroleum resin, terpene resin, or polyisobutylene. The anti-slip filler is a composite of nano-silicon dioxide and silicon carbide, preferably with a mass ratio of nano-silicon dioxide to silicon carbide of 1:1. The additive is a benzotriazole UV absorber and / or a hindered phenol antioxidant.

[0046] Among the various materials, petroleum asphalt provides basic waterproofing properties. The photocurable resin utilizes a composite system of epoxy acrylate and polyurethane acrylate. Epoxy acrylate imparts cohesive strength and rapid photosensitivity, while polyurethane acrylate enhances flexibility and adapts to substrate deformation. The tackifier and photocurable resin synergistically enhance interfacial bonding strength. The polar groups in the tackifier interact with the polar components in the asphalt. The network structure formed by the cured photocurable resin tightly wraps the asphalt and the substrate. The presence of the tackifier further enhances the flexibility of the crosslinked network, resulting in excellent bonding strength between the asphalt and various substrates. The crosslinked structure of the photocurable resin restricts the thermal motion of asphalt molecules, while the tackifier raises the asphalt's softening point. Together, they effectively prevent asphalt from slipping and deforming at high temperatures, improving its high-temperature stability while maintaining good adhesion at low temperatures, ensuring workability and performance in cold environments. The protective film formed by the cured photocurable resin prevents the penetration of oxygen, heat, and moisture into the asphalt. The tackifier fills the asphalt's internal pores, reducing the diffusion pathways for gases and water. The synergistic effect of these two factors slows the rate of thermal oxidative aging of the asphalt and improves the coating's water resistance.

[0047] The preparation method of the above-mentioned high-viscosity, anti-skid and waterproof asphalt coating comprises the following steps:

[0048] Heat petroleum asphalt to 160-180°C, add tackifier and light-curing resin, and shear and stir at 2500-3500 r / min for 1-2 hours to form a uniform mixture. Cool to 120-140°C, add photoinitiator, and continue high-speed shear mixing at 5000-8000 r / min for 0.5-1 hour to form a photosensitive prepolymer. Add anti-skid filler and weathering agent, and process in a high-speed disperser (5000-6000 r / min) for 0.5-1 hour to ensure uniform dispersion of the nanofiller, thereby obtaining the high-viscosity, anti-skid, and waterproof asphalt coating.

[0049] The above-mentioned high-viscosity anti-skid and waterproof asphalt coating has fast curing, high adhesion, excellent anti-skid property and good environmental protection.

[0050] Fast construction: Surface drying within 1 to 3 minutes under UV light, which is more than 90% more efficient than traditional hot melt process.

[0051] High adhesion and anti-slip: The synergistic effect of the tackifier and anti-slip filler makes the bonding strength ≥1.8MPa and the friction coefficient ≥0.65. The facade construction does not flow or slip, and can resist the shear force under high counterweight.

[0052] Strong weather resistance: After 5000 hours of QUV aging test, the bonding strength retention rate is ≥90%, the tensile strength retention rate is >90%, and the softening point remains above 105℃.

[0053] Long-lasting waterproofing: After bonding with the underlying base layer and the upper membrane layer, it forms an overall dense waterproof layer structure, inhibiting water penetration, and the water immersion time is greater than 10,000 hours without separation or falling off.

[0054] Example 1

[0055] This embodiment provides a high-viscosity, anti-skid and waterproof asphalt coating, whose raw material formula is as follows, in parts by weight: 52% petroleum asphalt, 20% photocurable resin, 10% tackifier, 2% photoinitiator, 15% anti-skid filler, and 1% additive.

[0056] Preferably, the petroleum asphalt is 90# asphalt.

[0057] Preferably, the light-curing resin is 45% bisphenol A epoxy acrylate EBECRYL605 / 20 and 55% aliphatic polyurethane acrylate AgiSyn 530.

[0058] The tackifier is C9 petroleum resin and terpene resin 1150 in a ratio of 1:1.

[0059] The photoinitiator is ITX; the auxiliary agent is B225.

[0060] The preparation method of the above-mentioned high-viscosity, anti-skid and waterproof asphalt coating comprises the following steps:

[0061] Heat petroleum asphalt to 160-180°C, add a tackifier and a light-curing resin, and shear-mix at 3000 rpm for 1-2 hours to form a uniform mixture. Cool to 120-140°C, add a photoinitiator, and continue high-speed shear mixing at 7000 rpm for 0.5 hours to form a photosensitive prepolymer. Add anti-skid fillers and weathering agents, and process in a high-speed disperser (5000 rpm) for 30 minutes to ensure uniform dispersion of the nanofillers, thereby obtaining the high-viscosity, anti-skid, and waterproof asphalt coating.

[0062] Example 2

[0063] This embodiment provides a high-viscosity, anti-skid and waterproof asphalt coating, whose raw material formula is as follows, in parts by weight: 54% petroleum asphalt, 15% photocurable resin, 8% tackifier, 1% photoinitiator, 20% anti-skid filler, and 2% additive.

[0064] Preferably, the petroleum asphalt is 70# asphalt.

[0065] Preferably, the light-curing resin is 50% bisphenol A epoxy acrylate AgiSyn 1030 and 50% aliphatic polyurethane acrylate EasepiU600.

[0066] The tackifier is C9 petroleum resin.

[0067] The photoinitiator is 522; the auxiliary agent is UV-1130.

[0068] The preparation method of the high-viscosity, anti-skid and waterproof asphalt coating is the same as that in Example 1.

[0069] Example 3

[0070] This embodiment provides a high-viscosity, anti-skid and waterproof asphalt coating, whose raw material formula is as follows, in parts by weight: 56% petroleum asphalt, 25% photocurable resin, 5% tackifier, 3% photoinitiator, 10% anti-skid filler, and 1% additive.

[0071] Preferably, the petroleum asphalt is 90# asphalt.

[0072] Preferably, the light-curing resin is 45% bisphenol A epoxy acrylate AgiSyn 1030 and 55% aliphatic polyurethane acrylate AgiSyn 530.

[0073] The tackifier is terpene resin 1150.

[0074] The photoinitiator is ITX2; the auxiliary agent is B225.

[0075] The preparation method of the high-viscosity, anti-skid and waterproof asphalt coating is the same as that in Example 1.

[0076] Comparative Example 1

[0077] The difference between this comparative example and Example 1 is that the waterproof asphalt coating of this comparative example has the following raw material formula, calculated by weight: 40% aqueous emulsified asphalt, 20% chloroprene rubber latex, 0.5% alkali swelling thickener, 1% dispersant, 0.5% defoaming agent, 30% heavy calcium carbonate powder, and 8% silicone hydrophobic agent.

[0078] The preparation method of the above-mentioned water-based high-viscosity anti-slip waterproof coating includes the following steps: weighing each component according to the formula ratio, first adding water-based emulsified asphalt and chloroprene rubber latex in a homogenizer, then adding a dispersant, a defoaming agent and a silicone hydrophobic agent in sequence to prepare a mixed solution, and finally adding an alkali-swellable thickener and heavy calcium carbonate powder, and fully stirring the mixed solution in a homogenizer.

[0079] Comparative Example 2

[0080] The difference between this comparative example and Example 1 is that the waterproof asphalt coating in this comparative example does not contain polyurethane acrylate in its light-curing resin, and the remaining components, proportions and preparation method are basically the same as those in Example 1.

[0081] Comparative Example 3

[0082] The difference between this comparative example and Example 1 is that the filler of the waterproof asphalt coating in this comparative example is a common filler, specifically calcium carbonate, and the remaining ingredients, proportions and preparation method are basically the same as those in Example 1.

[0083] Tests and Results

[0084] The high-viscosity, anti-skid, and waterproof asphalt coatings prepared in the examples and comparative examples were subjected to relevant performance tests. The test characterization methods and test results are shown in Table 1 below.

[0085] Table 1 Test characterization method and test results

[0086]

[0087] Table 1 results show that the various properties of Example 1 are the most excellent, and the curing speed is very fast, and the various physical properties are better, while the curing speed of Comparative Example 1 is obviously slow, and there is a significant gap in various properties. Comparative Example 2 only has epoxy acrylate resin, which causes the rigidity of the sample to be stronger, and the low-temperature flexibility and bonding performance deteriorate, and the surface drying slows down. The ordinary filler in Comparative Example 3 cannot form a cross-linking synergistic effect with the resin, and heat resistance, anti-sagging and bonding performance are all reduced. Examples 1, 2, and 3 have excellent water resistance and high and low temperature resistance, strong bonding force, can be tightly attached to various base surfaces, and effectively prevent moisture from penetrating from the gap between the base surface and the coating. At the same time, a lasting sealing bond can be formed between the coating and the post-pasting coiled material, and the peel strength is high, which can effectively prevent the coiled material from hollowing, slipping, and falling off, and prevent water leakage, and the waterproof effect is more guaranteed. It solves the problem that workers cannot paint twice or three times in a short time on the plane, and the sagging phenomenon on the facade, greatly shortens the project period as a whole, and has a wide range of applications.

[0088] The above-described embodiments, prepared by the methods of the present invention, are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent variations or modifications made in accordance with the spirit and substance of the present invention are intended to be encompassed within the scope of protection of the present invention.

[0089] The endpoints of the ranges and any values disclosed herein are not limited to the precise ranges or values, and these ranges or values should be understood to include values close to these ranges or values. For numerical ranges, the endpoints of each range, the endpoints of each range and individual point values, and the individual point values can be combined with each other to obtain one or more new numerical ranges, which should be considered to be specifically disclosed herein.

Claims

1. A high-viscosity, anti-skid and waterproof asphalt coating, characterized in that: The high-viscosity, anti-skid and waterproof asphalt coating contains the following ingredients in parts by weight: Petroleum asphalt 40% to 60%; Light-curing resin 15% to 25%; Thickener 5% to 10%; Photoinitiator 1% to 3%; Anti-slip filler 10% to 20%; Additives 0.5%~2%.

2. The high-viscosity, anti-skid and waterproof asphalt coating according to claim 1, characterized in that: The petroleum asphalt is 70# petroleum asphalt and / or 90# petroleum asphalt.

3. The high-viscosity, anti-skid and waterproof asphalt coating according to claim 1, characterized in that: The photocurable resin includes epoxy acrylate and polyurethane acrylate.

4. The high-viscosity, anti-skid and waterproof asphalt coating according to claim 3, characterized in that: In parts by weight, the photocurable resin comprises 45% to 75% of epoxy acrylate and 25% to 55% of polyurethane acrylate.

5. The high-viscosity, anti-skid and waterproof asphalt coating according to claim 1, characterized in that: The photoinitiator is a benzophenone derivative and / or a thioxanthone substance.

6. The high-viscosity, anti-skid and waterproof asphalt coating according to claim 1, characterized in that: The tackifier is one or more of C5 petroleum resin, C9 petroleum resin, terpene resin or polyisobutylene.

7. The high-viscosity, anti-skid and waterproof asphalt coating according to claim 1, characterized in that: The anti-slip filler consists of nano silicon dioxide and silicon carbide.

8. The high-viscosity, anti-skid and waterproof asphalt coating according to claim 1, characterized in that: The auxiliary agent is a benzotriazole UV absorber and / or a hindered phenol antioxidant.

9. The high-viscosity, anti-skid and waterproof asphalt coating according to claim 1, characterized in that: The high-viscosity, anti-skid and waterproof asphalt coating has a surface drying time of less than or equal to 3 minutes, a bonding strength greater than or equal to 2.8 MPa, and a peel strength greater than or equal to 2.4 MPa.

10. A method for preparing a high-viscosity, anti-skid and waterproof asphalt coating according to any one of claims 1 to 9, characterized in that: The steps include: The petroleum asphalt is heated to 160-180°C, a tackifier and a light-curing resin are added, the mixture is evenly mixed, the temperature is lowered to 120-140°C, a photoinitiator is added, and high-speed shear dispersion is performed to form a photosensitive prepolymer; an anti-skid filler and a weathering agent are added, and after dispersion treatment, the high-viscosity, anti-skid and waterproof asphalt coating is obtained.

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