An enhanced waterborne photocurable surface adhesive for stone decoration

Abstract

The present invention provides an enhanced waterborne photocurable surface adhesive for stone decoration. The surface adhesive comprises a waterborne photocurable resin, a gloss and hardness enhancer, and an auxiliary agent. The gloss and hardness enhancer is an emulsion formed by dispersing paraffin wax, oxidized polyethylene wax, and a Fischer-Tropsch wax composition in an emulsifier and deionized water. The mass of the gloss and hardness enhancer is 5-20% of the mass of the waterborne photocurable resin. By using an emulsion formed by dispersing paraffin wax, oxidized polyethylene wax, and a Fischer-Tropsch wax composition in an emulsifier and deionized water as the gloss and hardness enhancer, the present invention can not only improve the glossiness but also significantly impart greater hardness to the colloid.

Description

Technical Field

[0001] The present invention relates to the technical field of photocurable materials, and particularly to an enhanced waterborne photocurable stone decoration surface glue. Background Art

[0002] At present, most of the stone surface glues on the market are epoxy resin systems, which are relatively expensive, have a long curing time, and require a long waiting time during the construction process, are not suitable for flow operation, and affect work efficiency; in addition, the epoxy resin has a high viscosity, and the method of adding a diluent is often used on the market to reduce the product viscosity, but this method will cause the VOC content of the product to be too high, which will cause harm to the atmosphere and human health, damage the ecological environment of mankind, and reduce the mechanical properties of the product after adding the diluent, resulting in many defects such as weak adhesion to the stone surface; and after the epoxy resin is cured, a dense protective film will be formed on the stone surface, completely blocking the micropores of the stone, hindering the air permeability of the stone, and preventing the moisture inside the stone or the moisture at the bottom of the stone from being discharged normally, which is extremely easy to form stone "diseases" such as water stains, wet marks, efflorescence, and mildew on the stone.

[0003] The patent application with the publication number CN110903799A discloses a waterborne photocurable stone decoration surface glue, which can solve the problems of slow curing speed and weak adhesion to the stone to a certain extent. However, due to the development of the construction industry, higher requirements are put forward for the stone decoration surface glue. The waterborne photocurable stone decoration surface glue disclosed in CN110903799A can no longer meet the market requirements for the brightness and strength of the waterborne photocurable stone decoration surface glue. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an enhanced waterborne photocurable stone decoration surface glue to further improve its brightness and strength.

[0005] The present invention provides an enhanced waterborne photocurable stone decoration surface glue, which includes a waterborne photocurable resin, a brightening and hardening agent, and an auxiliary agent. The brightening and hardening agent is an emulsion formed by dispersing a paraffin wax, a polyethylene oxide wax, and a Fischer-Tropsch wax composition in an emulsifier and deionized water; the mass of the brightening and hardening agent is 5-20% of the mass of the waterborne photocurable resin.

[0006] The present invention selects a paraffin wax, a polyethylene oxide wax, and a Fischer-Tropsch wax composition as the main components of the brightening and hardening agent, which can improve the gloss of the stone decoration surface glue and endow the colloid with greater hardness. In addition, the present invention makes the wax into an emulsion and adds it to the resin in the form of an emulsified wax. The particle size of the wax emulsion is only in the nanometer to micrometer range and will not affect the air permeability of the colloid.

[0007] According to the enhanced waterborne photocurable surface glue for stone decoration provided by the present invention, the mass ratio of paraffin wax, oxidized polyethylene wax, and Fischer-Tropsch wax is (0.5 - 1.5):(0.5 - 1.5):1; the mass of the paraffin wax, oxidized polyethylene wax, and Fischer-Tropsch wax composition accounts for 25 - 30% of the mass of the gloss enhancing and hardening agent.

[0008] According to the enhanced waterborne photocurable surface glue for stone decoration provided by the present invention, the emulsifier is composed of span-80 and tween-80 with a mass ratio of (0.9 - 1.1):1; the mass of the emulsifier accounts for 8 - 10% of the mass of the gloss enhancing and hardening agent.

[0009] The selection of the emulsifier affects the emulsification and dispersion degree of the gloss enhancing and hardening agent, and thus affects the appearance and performance of the colloid after curing. The present invention has found through research that emulsifying with a specific ratio of span-80 and tween-80 has better effects.

[0010] According to the enhanced waterborne photocurable surface glue for stone decoration provided by the present invention, the preparation method of the gloss enhancing and hardening agent includes: adding the paraffin wax, oxidized polyethylene wax, and Fischer-Tropsch wax composition and the emulsifier into a high-shear dispersion emulsifier, heating to the emulsification temperature of 80 - 100 °C, and dropping deionized water at the same temperature. The rotation speed is controlled at 1000 - 1500 revolutions per minute for shear dispersion emulsification. After dropping, it is naturally cooled to obtain the gloss enhancing and hardening agent.

[0011] According to the enhanced waterborne photocurable surface glue for stone decoration provided by the present invention, the enhanced waterborne photocurable surface glue for stone decoration further includes a reinforcing material. The reinforcing material includes whisker materials and light-transmitting fibers. The length of the whisker materials is 10 - 25 μm, and the length of the light-transmitting fibers is 10 - 25 μm.

[0012] According to the enhanced waterborne photocurable surface glue for stone decoration provided by the present invention, the whisker materials are one or more of aluminum borate whiskers, alumina whiskers, calcium sulfate whiskers, and calcium carbonate whiskers.

[0013] According to the enhanced waterborne photocurable surface glue for stone decoration provided by the present invention, the light-transmitting fibers are one or more of poly(diallyl diglycol carbonate) fibers and styrene acrylonitrile copolymer fibers.

[0014] The addition of the reinforcing material can improve various indexes such as the hardness, impact toughness, and flexural modulus of elasticity of the surface glue after curing.

[0015] A whisker refers to a fiber that forms naturally or grows in the form of a single crystal under artificially controlled conditions (the main form). Its diameter is very small (in the micron range), and it does not contain defects (such as grain boundaries, dislocations, and holes) that are commonly present in materials. Its atomic arrangement is highly ordered, so its strength is close to the theoretical value of a perfect crystal, and its mechanical strength is equal to the force between adjacent atoms. The highly oriented structure of whiskers not only endows them with high strength, high modulus, and high elongation, but also electrical, optical, magnetic, dielectric, conductive, and superconducting properties. The strength of whiskers is much higher than that of other short-cut fibers.

[0016] Light-transmitting fibers include fibers that transmit visible light (wavelength 0.39 - 0.76 μm), infrared light (wavelength 1 - 1000 μm), and ultraviolet light (wavelength 0.01 - 0.4 μm). The preferred poly(diallyl diglycol carbonate) fibers and styrene-acrylonitrile copolymer fibers of the present invention are both highly transparent, with a visible light transmittance of over 90%, high mechanical strength, and good toughness. It has been found that during the curing process of the colloid, internal stress is generated due to volume shrinkage. Once the stress exceeds the tensile strength of the colloid, microcracks are caused inside the colloid, leading to cracking, deformation, or even failure. Compared with powder materials, fibers have high tensile strength, and when added to the surface colloid, they can reduce the shrinkage of the surface colloid cured product. When the surface colloid cracks, the randomly distributed fibers form a supporting force across the crack site. The fibers bear the stress when the surface colloid cracks, which plays a role in delaying and preventing the crack from continuing to expand; when the surface colloid is subjected to external forces, the fibers and the surface colloid act together, thereby improving the tensile strength, bending strength, and fatigue strength of the surface colloid and enhancing the impact resistance.

[0017] In the present invention, whisker materials and light-transmitting fibers are compounded. The whisker materials can be closely combined with the light-transmitting fibers and interweave with each other to form a "whisker-light-transmitting fiber" network structure, forming a tightly structured material with good rigidity, good uniformity, and higher strength after curing. In addition, this network structure can, to a certain extent, avoid the decline in the mechanical properties of the surface colloid caused by the "agglomeration" resulting from excessive addition of a single fiber. After the two are compounded, the hardness, impact toughness, flexural modulus of elasticity, and other properties of the cured colloid of the present invention can be further improved, which is significantly better than the effect of only adding a single fiber for reinforcement under the same total filler addition amount.

[0018] Considering the properties such as curing speed, adhesion strength, air permeability, yellowing resistance, and brightness, in the preferred embodiment of the present invention, by weight, the enhanced waterborne photocurable surface adhesive for stone decoration comprises the following components: 100 parts of waterborne photocurable resin, 5 - 20 parts of gloss enhancing and hardening agent, 1 - 8 parts of waterborne photoinitiator, 0.5 - 3 parts of waterborne light stabilizer, 0.1 - 1 part of waterborne leveling agent, 0.1 - 1 part of waterborne defoaming agent, and 10 - 20 parts of reinforcing material.

[0019] According to the enhanced waterborne photocurable surface adhesive for stone decoration provided by the present invention, the waterborne photocurable resin comprises 50-90% of a waterborne photocurable resin prepolymer and the balance of water, and the waterborne photocurable resin prepolymer is one or more of a waterborne epoxy acrylate resin, a waterborne polyurethane acrylate resin, and a waterborne polyester acrylate resin.

[0020] The present invention selects a waterborne photocurable resin, which can achieve a formulation without active diluents, reducing the curing volume shrinkage caused by the participation of active diluents in the reaction; and it is safe, environmentally friendly, and non-toxic, avoiding the harm caused by organic solvents to the ecological environment and human health. Moreover, the photocurable resin of the present invention is different from the traditional epoxy resin system, having good air permeability and not easily forming stone "pathologies" such as water stains, wet marks, efflorescence, and mildew on the stone.

[0021] According to the enhanced waterborne photocurable surface adhesive for stone decoration provided by the present invention, the waterborne photoinitiator is a mixture of a waterborne acetophenone derivative photoinitiator and an organophosphorus compound photoinitiator with a mass ratio of (0.5-2):1.

[0022] Further, the waterborne acetophenone derivative photoinitiator is one or more of 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone (IRGACURE 2959), 2-hydroxy-2-methyl-1-phenyl-1-propanone (DAROCUR 1173), and 1-hydroxycyclohexyl phenyl ketone (IRGACURE 184); the organophosphorus compound photoinitiator is one or more of ethyl 2,4,6-trimethylbenzoyl phenylphosphinate (IRGACURE TPO-L) and 45% aqueous solution of bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide (IRGACURE 819DW).

[0023] In some embodiments of the present invention, the waterborne photoinitiator is DAROCUR 1173 and IRGACURE TPO-L, and their mass ratio is 1:1.

[0024] According to the enhanced waterborne photocurable surface adhesive for stone decoration provided by the present invention, the waterborne light stabilizer is one or more of TINUVIN 1130, TINUVIN 477DW, TINUVIN 5050, TINUVIN 5060, and TINUVIN 5151.

[0025] The above waterborne light stabilizers are all products of BASF. Experiments have found that adding the above waterborne light stabilizers to the enhanced waterborne photocurable surface adhesive for stone decoration of the present invention can produce a synergistic effect with the waterborne photoinitiator, making the colloid resistant to ultraviolet light irradiation, maintaining a stable color, and effectively improving the yellowing resistance of the colloid.

[0026] The enhanced waterborne photocurable surface adhesive for stone decoration provided by the present invention, wherein the waterborne leveling agent is one or more of acrylate leveling agents and polyether siloxane leveling agents.

[0027] The enhanced waterborne photocurable surface adhesive for stone decoration provided by the present invention, wherein the waterborne defoaming agent is one or more of mineral oil-based defoaming agents, polyether-modified polysiloxane defoaming agents, and hydrophobic polyether defoaming agents.

[0028] In a preferred embodiment of the present invention, the enhanced waterborne photocurable surface adhesive for stone decoration comprises the following components in parts by weight: 30 parts of waterborne epoxy acrylate resin, 50 parts of waterborne polyurethane acrylate resin, 20 parts of water, 14 parts of a polishing and hardening agent, 2.5 parts of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 2.5 parts of ethyl 2,4,6-trimethylbenzoyl phenylphosphinate, 1 part of TINUVIN 477DW, 1 part of TINUVIN 5050, 0.6 part of an acrylate leveling agent, 0.6 part of a polyether-modified polysiloxane defoaming agent, 4 parts of aluminum borate whiskers, 4 parts of alumina whiskers, and 8 parts of poly(diallyl diglycol carbonate) fibers.

[0029] In another preferred embodiment of the present invention, the enhanced waterborne photocurable surface adhesive for stone decoration comprises the following components in parts by weight: 50 parts of waterborne polyurethane acrylate resin, 30 parts of waterborne polyester acrylate resin, 20 parts of water, 15 parts of a polishing and hardening agent, 2 parts of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 2 parts of a 45% aqueous solution of phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 0.5 part of TINUVIN 1130, 0.5 part of TINUVIN 477DW, 1.5 parts of TINUVIN 5050, 0.4 part of an acrylate leveling agent, 0.3 part of a polyether siloxane leveling agent, 0.7 part of a mineral oil-based defoaming agent, 4 parts of calcium carbonate whiskers, 6 parts of poly(diallyl diglycol carbonate) fibers, and 6 parts of styrene acrylonitrile copolymer fibers.

[0030] The present invention provides an enhanced waterborne photocurable surface adhesive for stone decoration. By using an emulsion formed by dispersing paraffin wax, polyethylene oxide wax, and Fischer-Tropsch wax composition in an emulsifier and deionized water as the polishing and hardening agent, it can not only improve the glossiness but also significantly impart greater hardness to the colloid.

[0031] Furthermore, the present invention combines whisker materials with light-transmitting fibers. The whisker materials can be tightly combined with the light-transmitting fibers and interweave with each other to form a "whisker-light-transmitting fiber" network structure, which synergistically interacts with the other components in the colloid, enhancing the adhesive strength of the colloid. Detailed implementation mode

[0032] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the following examples, unless otherwise specified, the reagents used can be obtained through commercial purchase.

[0034] Examples 1 - 23

[0035] Examples 1 - 23 respectively provide an enhanced waterborne photocurable stone decoration surface glue, and its composition is shown in Tables 1 - 3. The preparation method is as follows:

[0036] (1) Prepare the glazing and hardening agent: Add paraffin wax, oxidized polyethylene wax, Fischer - Tropsch wax composition, emulsifier span - 80, and tween - 80 into a high - shear dispersion emulsifier in proportion, and slowly heat up to the emulsification temperature of 80 - 100 °C while stirring; then slowly dropwise add deionized water at the same temperature in proportion, and perform high - speed shear dispersion emulsification; after the dropping is completed, cool naturally to obtain the glazing and hardening agent.

[0037] (2) Weigh each raw material according to the formula. First, add the waterborne photocurable resin, glazing and hardening agent, waterborne photoinitiator composition, waterborne light stabilizer, waterborne leveling agent, and waterborne defoaming agent into a planetary stirrer, control the rotation speed at 1000 - 1500 revolutions per minute, and perform negative - pressure stirring for 10 - 15 minutes; then add the remaining materials, control the rotation speed at 1000 - 1500 revolutions per minute, and perform negative - pressure stirring for 10 - 15 minutes to obtain the enhanced waterborne photocurable stone decoration surface glue.

[0038] The present invention also provides waterborne photocurable stone decoration surface glues with glazing and hardening agents different from those in Example 1 (Comparative Examples 1 - 8), and waterborne photocurable stone decoration surface glues with reinforcing materials different from those in Example 1 (Comparative Examples 9 - 12). The composition of each raw material is shown in Tables 3 - 4, and its preparation method is the same as that of Example 1.

[0039] Table 1

[0040]

[0041]

[0042] Table 2

[0043]

[0044]

[0045]

[0046] Table 3

[0047]

[0048]

[0049] Table 4

[0050]

[0051]

[0052] Experimental Example

[0053] To prove the excellent effects of the enhanced waterborne photocurable stone decorative surface glue of the present invention, the enhanced waterborne photocurable stone decorative surface glue obtained in Examples 1-23 of the present invention and Comparative Examples 1-11 and each example in Chinese Patent Document CN110903799A (the results are summarized in Comparative Example 12 of the present invention) were respectively subjected to performance tests, including curing time, glossiness, hardness, impact toughness, flexural elastic modulus, color difference value, and water vapor transmission rate. The test results are shown in Table 5.

[0054] The specific methods for each test are as follows:

[0055] Curing time: After pre-treatment by drying to remove water, irradiate under a 500W ultraviolet lamp, and test the curing time under different temperature conditions;

[0056] Glossiness: After pre-treatment by drying to remove water from the sample to be tested, irradiate and cure it under a 500W ultraviolet lamp, and test the glossiness by referring to the 60° specular gloss test in GB / T 9754-2007.

[0057] Hardness: After pre-treatment by drying to remove water from the sample to be tested, irradiate and cure it under a 500W ultraviolet lamp, and use a Barcol hardness tester (Beijing Times Peak Technology Co., Ltd., model HBA-1) to test according to the test method for Barcol hardness of cured products with reference to GB / T 3854-2005;

[0058] Impact toughness and flexural elastic modulus: Referring to the test method of JC / T989-2016, after preparing the cured product sample block, test it with a universal tensile machine;

[0059] Color difference value: According to the test method of GB / T14522-2008, after irradiating the colloidal cured product in a UV aging test chamber (model: LRHS-UVN, manufacturer: Shenyang UV Aging Test Chamber Factory) under a UVA340nm type fluorescent ultraviolet lamp for 70 hours, measure its color difference value with a color difference meter (brand: 3nh San'enchi, model: NR110, manufacturer: Shenzhen Tianyouli Standard Light Source Co., Ltd.);

[0060] Water vapor transmission rate: According to the test method of GB / T 30412-2013, the cured sample to be detected is fixed in the sample chamber of a water vapor transmission rate tester (Guangzhou Xitang Electromechanical Technology Co., Ltd., W-B-61E water vapor transmission rate tester) for testing.

[0061] Table 5

[0062]

[0063]

[0064] It can be seen from the above results that the gloss, hardness, impact toughness, and flexural modulus of the cured products of the enhanced waterborne photocurable stone decorative surface adhesives in Examples 1-23 of the present invention are much higher than those of Comparative Example 13.

[0065] Among them, Comparative Example 1 is a waterborne photocurable stone decorative surface adhesive without any polishing and hardening agent. In Comparative Example 2, only a polishing and hardening agent made of paraffin wax is added. In Comparative Example 3, only a polishing and hardening agent made of oxidized polyethylene wax is added. In Comparative Example 4, only a polishing and hardening agent made of Fischer-Tropsch wax is added. Compared with Comparative Example 1, the gloss of the cured colloid increases, but the increase in hardness, impact toughness, and flexural modulus is not obvious. In Comparative Example 8, only a polishing and hardening agent made of beeswax is added. The gloss of the cured colloid is not good, and the color difference is large. The performance of beeswax is inferior to the paraffin wax, oxidized polyethylene wax, and Fischer-Tropsch wax preferably used in the present invention. In Comparative Examples 5-7, the paraffin wax, oxidized polyethylene wax, and Fischer-Tropsch wax are mixed in pairs to make a polishing and hardening agent. Although each index is improved compared with single addition, the effect is not ideal. In Example 2, the paraffin wax, oxidized polyethylene wax, and Fischer-Tropsch wax are mixed together to make a polishing and hardening agent. Under the same addition amount, the gloss and hardness of the cured colloid are significantly improved, and the impact toughness and flexural modulus are also improved to a certain extent. Experiments have found that by adding the polishing and hardening agent made of the paraffin wax, oxidized polyethylene wax, and Fischer-Tropsch wax composition of the present invention, it can not only improve the gloss but also significantly impart greater hardness to the colloid.

[0066] Comparative Example 9 is an aqueous UV-curable surface adhesive for stone decoration without any reinforcing materials. In Comparative Example 10, only whisker materials are added. In Comparative Example 11, only light-transmitting fibers are added. In Comparative Example 12, only conventional light-transmitting powder is added. Compared with Comparative Example 9, when a single variety of reinforcing material is added, the hardness, impact toughness, and flexural modulus of the cured colloid are improved, but the increase effect is not ideal. In Comparative Example 13, whisker materials and light-transmitting powder are compounded as reinforcing materials, which can further improve the hardness, impact toughness, and flexural modulus of the cured colloid, but the improvement amplitude is limited. In Example 5, whisker materials and light-transmitting fibers are compounded as reinforcing materials. Under the same addition amount, the bonding strength of the colloid is significantly enhanced. The whisker materials can be tightly combined with the light-transmitting fibers and intertwined with each other to form a "whisker-light-transmitting fiber" network structure, which synergizes with the other components in the colloid and significantly enhances the bonding strength of the colloid.

[0067] In summary, the enhanced aqueous UV-curable surface adhesive for stone decoration in the embodiments of the present invention has the characteristics of high gloss, high hardness, high bonding strength, fast curing speed, good air permeability, and excellent yellowing resistance.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An enhanced waterborne photocurable surface adhesive for stone decoration, characterized in that, It includes a waterborne UV-curable resin, a varnishing and hardening agent, and an auxiliary agent. The varnishing and hardening agent is an emulsion formed by dispersing paraffin wax, polyethylene wax oxide, and Fischer-Tropsch wax composition in an emulsifier and deionized water. The mass of the varnishing and hardening agent is 5-20% of the mass of the waterborne UV-curable resin. The mass ratio of paraffin wax, polyethylene wax oxide, and Fischer-Tropsch wax is (0.5-1.5):(0.5-1.5):

1. The mass of the paraffin wax, polyethylene wax oxide, and Fischer-Tropsch wax composition accounts for 25-30% of the mass of the varnishing and hardening agent. The emulsifier consists of span-80 and tween-80 with a mass ratio of (0.9-1.1):

1. The mass of the emulsifier accounts for 8-10% of the mass of the varnishing and hardening agent. The preparation method of the varnishing and hardening agent includes: adding paraffin wax, polyethylene wax oxide, and Fischer-Tropsch wax composition and the emulsifier into a high-shear dispersion emulsifier, heating to the emulsification temperature of 80-100 °C, and dropping deionized water at the same temperature. The rotation speed is controlled at 1000-1500 revolutions per minute for shear dispersion emulsification. After dropping, it is naturally cooled to obtain the varnishing and hardening agent. The enhanced waterborne UV-curable stone decoration surface glue also includes a reinforcing material. The reinforcing material includes whisker materials and light-transmitting fibers. The length of the whisker materials is 10-25 μm, and the length of the light-transmitting fibers is 10-25 μm. By weight, the enhanced waterborne UV-curable stone decoration surface glue includes the following components: 100 parts of waterborne UV-curable resin, 5-20 parts of varnishing and hardening agent, 1-8 parts of waterborne photoinitiator, 0.5-3 parts of waterborne light stabilizer, 0.1-1 part of waterborne leveling agent, 0.1-1 part of waterborne defoaming agent, and 10-20 parts of reinforcing material.

2. The enhanced waterborne photocurable surface adhesive for stone decoration according to claim 1, characterized in that, The whisker materials are one or more of aluminum borate whiskers, alumina whiskers, calcium sulfate whiskers, and calcium carbonate whiskers. The light-transmitting fibers are one or more of poly(diallyl diglycol carbonate) fibers and styrene acrylonitrile copolymer fibers.

3. The enhanced waterborne photocurable surface adhesive for stone decoration according to claim 1, wherein The waterborne UV-curable resin includes 50-90% of waterborne UV-curable resin prepolymer and the balance of water. The waterborne UV-curable resin prepolymer is one or more of waterborne epoxy acrylate resin, waterborne polyurethane acrylate resin, and waterborne polyester acrylate resin.

4. The enhanced waterborne photocurable surface adhesive for stone decoration according to claim 1, characterized in that, The waterborne photoinitiator is a mixture of a waterborne acetophenone derivative photoinitiator and an organophosphorus compound photoinitiator with a mass ratio of (0.5-2):

1. The waterborne acetophenone derivative photoinitiator is one or more of 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, and 1-hydroxycyclohexyl phenyl ketone. The organophosphorus compound photoinitiator is one or more of ethyl 2,4,6-trimethylbenzoyl phenylphosphinate and 45% aqueous solution of bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide.

5. The enhanced water-based photocurable surface adhesive for stone decoration according to claim 1, characterized in that, The waterborne light stabilizer is one or more of TINUVIN 1130, TINUVIN 477DW, TINUVIN 5050, TINUVIN 5060, and TINUVIN 5151. And / or, the aqueous leveling agent is one or more of acrylate leveling agents and polyether silicone leveling agents; And / or, the aqueous defoamer is one or more of mineral oil-based defoamers, polyether-modified polysiloxane defoamers, and hydrophobic polyether defoamers.

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