Water-dispersible reactive light stabilizer and aqueous polymer material

Abstract

The invention provides a water-dispersible reactive light stabilizer and a water-based polymer material. The water-dispersible reaction type light stabilizer comprises a first component, a second component and a third component, wherein the first component is a reaction type hindered amine light stabilizer and / or a reaction type ultraviolet light absorber; a second component: an emulsifier; the emulsifier is at least two nonionic surfactants, or simultaneously comprises at least one anionic surfactant and at least one nonionic surfactant; the anionic surfactant is a sulfonate type anionic surfactant or a phosphate salt anionic surfactant; an optional third component: a co-emulsifier; and when the first component contains the reactive ultraviolet light absorber, the water-dispersible reactive light stabilizer must contain the third component. The water-dispersible reactive light stabilizer provided by the invention can be dispersed in water in a stable form, so that the water-dispersible reactive light stabilizer can be stably added into a water-based high polymer material without adding a cosolvent, the environmental protection property of the water-based high polymer material is fully ensured, and the water-based high polymer material is free of VOC (Volatile Organic Compounds) harm.

Description

Technical Field

[0001] The invention relates to the field of polymer material additives, and in particular to a water-dispersible reactive light stabilizer and a water-based polymer material. Background Art

[0002] In recent years, the technology of polymer materials has developed rapidly, and various materials with unique properties have been produced, providing greater development space and more possibilities for the progress of modern society. Polymer materials are ubiquitous and widely used, but most of them are directly exposed to the atmosphere. Light, air, carbon dioxide, water and organisms can cause aging of polymer materials, further affecting their performance or service life, thus greatly limiting their application.

[0003] The aging of polymer materials is mainly the degradation of polymer chains. The main aging mode of materials used at room temperature is photo-oxidative degradation. Adding light stabilizers, such as UV absorbers and hindered amine light stabilizers, is the main way to prevent photo-oxidative degradation. UV absorbers can absorb or shield the harmful ultraviolet part of sunlight and fluorescent light sources with a wavelength of 280 to 450nm without changing themselves. Hindered amine light stabilizers achieve the purpose of stabilizing polymers by capturing free radicals generated during polymer photo-oxidation and degradation, decomposing alkyl hydroperoxides, quenching excited state energy, and other means. Hindered amine light stabilizers have a good inhibitory effect on the photo-degradation reaction of polymer materials and are currently the most widely used high-efficiency light stabilizers in the field of anti-aging of polymer materials. Many studies have shown that UV absorbers (UVA for short) and hindered amine light stabilizers (HALS for short) have a synergistic effect, which will significantly improve the anti-aging effect of polymers. Therefore, the combination of UVA and HALS has been widely used in the field of polymer materials.

[0004] However, with the continuous development of society, countries have continuously increased their regulatory requirements and environmental protection requirements. Materials containing solvents, especially solvent-based coatings, contain a large amount of volatile organic compounds (VOCs) that are harmful to the human body. Therefore, environmentally friendly water-based coatings, powder coatings, UV light-curing coatings, water-based adhesives, water-based inks and other fields have developed rapidly, and their proportion in industry products has increased year by year, and the requirements for anti-aging of materials have also been continuously improved. Therefore, in order to adapt to new requirements, reduce VOC emissions, and to adapt to multiple needs and processing technology, the demand for water-based UVA and HALS composite light stabilizers in environmentally friendly water-based coating systems is also imperative. However, water-based UVA and HALS composite light stabilizers often encounter the following problems:

[0005] First, the water dispersibility problem: Traditional UVA and HALS are added to polymer materials as additives. They are generally small molecules or high molecular weight compounds, are hydrophobic, and are unevenly dispersed in water. They are easily soluble in organic solvents and generally need to be dissolved with the help of co-solvents before being added to water-based coating systems. This will also bring VOC hazards.

[0006] Second, long-term effect: Under normal use conditions, the combination of UVA and HALS has a good long-term protective effect on polymer materials. However, under high temperature, environmental material corrosion, etc., traditional UVA and HALS will be lost through physical means (volatilization, migration, dissolution), and the concentration of light stabilizers in the material will gradually decrease, and ultimately fail to protect the material, resulting in aging and degradation.

[0007] If UVA and HALS are designed to be reactive, and the light stabilizer is connected to the polymer chain through chemical cross-linking, the above-mentioned material long-term effectiveness problem can be solved and a long-term protective effect can be achieved. However, although there are some reactive UVA and reactive HALS compound products, there are few reactive light stabilizers for water-based systems to adapt to the development trend of water-based polymer systems.

[0008] In view of this, the present invention is proposed. Summary of the invention

[0009] The main purpose of the present invention is to provide a water-dispersible reactive light stabilizer and a water-based polymer material to solve the problem that the composite light stabilizer in the prior art is not suitable for water-based polymer materials.

[0010] In order to achieve the above object, according to one aspect of the present invention, a water-dispersible reactive light stabilizer is provided, which comprises: a first component: a reactive hindered amine light stabilizer and / or a reactive ultraviolet absorber; wherein the reactive hindered amine light stabilizer is R 1 ' is a C1-C10 alkyl group; the reactive ultraviolet absorber is R 1 , R 2 , R 3 and R 4 are independently selected from C1 to C4 alkyl groups, R 5 An alkyl or mixed alkyl selected from C8 to C20; a second component: an emulsifier; the emulsifier is at least two nonionic surfactants, or includes at least one anionic surfactant and at least one nonionic surfactant; the anionic surfactant is a sulfonate anionic surfactant or a phosphate anionic surfactant; an optional third component: an auxiliary emulsifier; and when the first component contains a reactive ultraviolet absorber, the water-dispersible reactive light stabilizer must contain the third component.

[0011] Further, each nonionic surfactant is independently an octylphenol polyoxyethylene ether (OP) series, a nonylphenol polyoxyethylene ether (NP) series, a castor oil polyoxyethylene ether (EL) series, a hydrogenated castor oil polyoxyethylene ether (HEL) series, a fatty alcohol polyoxyethylene ether (MOA) series, an isomeric alcohol polyoxyethylene ether (E13) series, a fatty acid polyoxyethylene ester (A) series surfactant, a polyethylene glycol (PEG) series or a polypropylene glycol (PPG) series surfactant; preferably, among at least two nonionic surfactants, the castor oil polyoxyethylene ether (EL) series does not exist at the same time as the nonylphenol polyoxyethylene ether (NP) series, the octylphenol polyoxyethylene ether (OP) series or the polyethylene glycol (PEG) series, and the fatty acid polyoxyethylene ester (A) series does not exist at the same time as the fatty alcohol polyoxyethylene ether (MOA) series; preferably, among at least one anionic surfactant and at least one nonionic surfactant, the anionic surfactant is not a sulfate type anionic surfactant.

[0012] Furthermore, R 1 ' is a C6-C10 alkyl group; R 1 , R 2 , R 3 and R 4 are independently selected from methyl or tert-butyl, R 5 An alkyl group or a mixed alkyl group selected from C12 to C16; preferably, the reactive ultraviolet absorber is one or more, and when the reactive ultraviolet absorber is multiple, R in different reactive ultraviolet absorbers 5 Different; preferably, the reactive hindered amine light stabilizer is Reactive UV absorbers are

[0013] Further, in the water-dispersible reactive light stabilizer, the weight ratio between the reactive hindered amine light stabilizer and the reactive ultraviolet absorber is 0-95:0-95, for example, 5-10:90-95, 15-20:80:85, 25-30:70-75, 35-40:60-65, 45-50:50-55, 50-55:45-50, 60-65:35-40, 70-75:25-30, 80-85:15-20, 90-95:5-10; preferably 5-40:10-70, more preferably 20-30:45-55.

[0014] Furthermore, the sulfonate type anionic surfactant is alkylbenzene sulfonate, α-olefin sulfonate, alkyl sulfonate, α-sulfonic monocarboxylic acid and its derivatives, fatty acid sulfonalkyl ester or fatty acid sulfonalkyl amide; the phosphate anionic surfactant is alkyl phosphate monoester salt, alkyl phosphate diester salt (AP), alcohol ether, ester ether phosphate monoester salt or ester ether phosphate diester salt; the octylphenol polyoxyethylene ether (OP) series surfactant is selected from at least one of OP-4, OP-5, OP-6, OP-7, and OP-10; the nonylphenol polyoxyethylene ether (NP) series surfactant is selected from at least one of NP-4, NP-5, NP-6, NP-7, and NP-10; the castor oil polyoxyethylene ether (EL) series surfactant is selected from at least one of EL-10, EL-12, EL-20, EL-30, EL-40, and EL-60; the hydrogenated castor oil polyoxyethylene ether (HEL) series surfactant is selected from At least one of HEL-20 and HEL-40; fatty alcohol polyoxyethylene ether (MOA) series surfactants are selected from at least one of MOA-3, MOA-4, MOA-5, MOA-7, and MOA-9; isomeric alcohol polyoxyethylene ether (E13) series surfactants are selected from at least one of E1302, E1304, E1306, E1308, E1310, and E1312; the ester nonionic surfactant is a fatty acid polyoxyethylene ester (A) series surfactant selected from at least one of A105, A110, and A115; polyethylene glycol (PEG) series surfactants are selected from at least one of PEG200, PEG300, PEG400, PEG600, PEG800, and PEG1000; polypropylene glycol (PPG) series surfactants are selected from at least one of PPG200, PPG400, PPG600, and PPG1000.

[0015] Further, when the first component contains a reactive ultraviolet absorber, the emulsifier is a compound of a fatty alcohol polyoxyethylene ether (MOA) series surfactant and an isomeric alcohol polyoxyethylene ether (E13) series surfactant; preferably, the weight ratio of the fatty alcohol polyoxyethylene ether (MOA) series surfactant and the isomeric alcohol polyoxyethylene ether (E13) series surfactant is 5-7.5:5-10; more preferably, the emulsifier is a compound of MOA-3 surfactant and E-1310 surfactant. When the first component contains only a reactive hindered amine light stabilizer, the emulsifier is a compound of a fatty alcohol polyoxyethylene ether (MOA) series surfactant and a castor oil polyoxyethylene ether (EL) series surfactant; preferably, the weight ratio of the fatty alcohol polyoxyethylene ether (MOA) series surfactant and the castor oil polyoxyethylene ether (EL) series surfactant is 2-4:2-5.2; more preferably, the emulsifier is a compound of MOA-3 surfactant and EL-10 surfactant.

[0016] Further, the amount of the emulsifier is 10 to 30% by weight of the first component, more preferably 13 to 23%;

[0017] Furthermore, the amount of the co-emulsifier is 3-10% by weight of the first component, more preferably 3.3-6.7% by weight; the co-emulsifier is a C8 to C18 fatty alcohol, preferably dodecanol.

[0018] According to another aspect of the present invention, there is also provided a water-based polymer material, comprising a light stabilizer, which is the above-mentioned water-dispersible reactive light stabilizer.

[0019] Furthermore, based on the solid components, the amount of the effective components of the light stabilizer added to the water-based polymer material is 0.1 to 10%; preferably, the water-based polymer material is a water-based acrylic resin material, a water-based polyurethane material, a water-based amino resin material, a water-based epoxy resin material, a water-based alkyd resin material, a water-based polyester resin material or a water-based phenolic resin material.

[0020] According to another aspect of the present invention, there is also provided a water-based polymer material product, comprising the water-dispersible reactive light stabilizer according to any one of claims 1 to 8, wherein the water-based polymer material product is a water-based paint, a water-based adhesive, a water-based ink, a water-based sealant, a water-based leather or a water-based sole slurry.

[0021] The present invention provides a water-dispersible reactive light stabilizer, which comprises a first component reactive hindered amine light stabilizer and / or reactive UV absorbers The water-dispersible reactive light stabilizer provided by the present invention can be dispersed in water in a stable form, so it can be stably added to the water-based polymer material without adding a co-solvent, fully ensuring the environmental protection of the water-based polymer material without VOC hazards.

[0022] Moreover, the present invention adopts a reactive hindered amine light stabilizer and / or reactive UV absorbers As the main components of light stabilizers, the two can also exist in the form of chemical linkage after being applied to waterborne polymer materials, have better long-term effectiveness, are not easy to volatilize, migrate, dissolve, etc., and can provide long-term and effective protection for polymer materials. In particular, when the above-mentioned reactive hindered amine light stabilizer and reactive ultraviolet absorber are included at the same time, the two also have a good compounding effect, which has a better effect on improving the anti-aging performance of waterborne polymer materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 The color difference change curve of the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 after application in a one-component acrylic water-based industrial paint in a QUV aging test is shown;

[0025] Figure 2 The color difference change curve of the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 after application in a single-component acrylic water-based industrial paint in a xenon lamp aging test is shown;

[0026] Figure 3 The color difference change curve of the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 after application in a two-component water-based acrylic polyurethane topcoat in a QUV aging test is shown;

[0027] Figure 4 The color difference change curve of the xenon lamp aging test after the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 is applied to the two-component water-based acrylic polyurethane topcoat is shown;

[0028] Figure 5 The color difference change curve of the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 after being applied to the plastic coating in the QUV aging test is shown;

[0029] Figure 6 The color difference change curve of the xenon lamp aging test after the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 is applied to the plastic coating is shown. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] As described in the background technology section of the present invention, there are few reactive light stabilizers used in water-based systems. On the one hand, the water dispersibility of reactive UVA and reactive HALS after emulsification is poor, and a stable and uniform aqueous dispersion cannot be formed. On the other hand, the adaptability and long-term effects of materials are generated with the needs of social development and the progress of material technology, and water-based systems have not yet received enough attention.

[0032] In order to solve the above problems, the present invention provides a water-dispersible reactive light stabilizer, which comprises: a first component: a reactive hindered amine light stabilizer and / or a reactive ultraviolet absorber; wherein the reactive hindered amine light stabilizer is R 1 ' is a C1-C10 alkyl group; the reactive ultraviolet absorber is R 1 , R 2 , R 3 and R 4 are independently selected from C1 to C4 alkyl groups, R 5 An alkyl or mixed alkyl selected from C8 to C20; a second component: an emulsifier; the emulsifier is at least two nonionic surfactants, or includes at least one anionic surfactant and at least one nonionic surfactant; the anionic surfactant is a sulfonate anionic surfactant or a phosphate anionic surfactant; an optional third component: an auxiliary emulsifier; and when the first component contains a reactive ultraviolet absorber, the water-dispersible reactive light stabilizer must contain the third component.

[0033] It is in liquid form at room temperature, and the two are more easily stably dispersed in water under the action of emulsifiers and optional co-emulsifiers. Therefore, the water-dispersible reactive light stabilizer provided by the present invention has good compatibility with water-based polymer materials, can be stably dispersed in water-based polymer materials without adding cosolvents, fully guarantees the environmental protection of water-based polymer materials, and has no VOC hazards, thereby expanding the application range of reactive composite light stabilizers.

[0034] and, The structure retains the low-alkalinity N-OR type main body, and introduces a hydroxyl group that can participate in the reaction at the other end. The hydroxyl group can chemically cross-link with the functional groups in the polymer material, such as the isocyanate group of the polyurethane material, the free amine or ether bond on the amino resin, and the epoxy group in the epoxy material, and finally the small molecule hindered amine light stabilizer is bonded to the matrix polymer chain. Especially when the reactive hindered amine light stabilizer and reactive UV absorbers When used as the main components of light stabilizers, the two not only have a good complexing effect, but also exist in the form of chemical linkage with water-based polymer materials after being applied to them. They have better long-term effectiveness, are not easy to evaporate, migrate, or dissolve, etc., and can provide long-term and effective protection for polymer materials.

[0035] Emulsifiers have lipophilic groups and hydrophilic groups. They can be adsorbed on the interface of the two phases to reduce the surface tension and form an interfacial film. The interfacial film has a protective effect on the dispersed phase droplets, making it difficult for the droplets that collide with each other in Brownian motion to coalesce. The coalescence of droplets (destruction of stability) is based on the rupture of the interfacial film. Therefore, the mechanical strength of the interfacial film is one of the main factors that determine the stability of the emulsion. The hydrophilic / lipophilic balance value (HLB value), molecular structure, and content of the emulsifier will affect the emulsification effect. The HLB value is related to the hydrophilicity and lipophilicity of the emulsifier, the surface tension of the emulsifier, the adsorption on the interface, the emulsification, the stability of the emulsion, the dispersibility, the solubility, the detergency and other basic properties, and the application performance of the emulsifier. The HLB of lipophilic emulsifiers is lower, and the HLB of hydrophilic emulsifiers is higher. The hydrophilic-lipophilic turning point HLB is 10. HLB less than 10 is lipophilic, and greater than 10 is hydrophilic. The charge of the emulsifier and the polarity of the emulsified oil phase affect the spatial, electrical or mechanical barriers between dispersed phase droplets, further affecting the droplet size and stability of the aqueous dispersion.

[0036] In order to make the water-dispersible reactive light stabilizer form a more stable water dispersion system, so as to make it more suitable for water-based polymer materials, in a preferred embodiment, each nonionic surfactant is independently octylphenol polyoxyethylene ether (OP) series, nonylphenol polyoxyethylene ether (NP) series, castor oil polyoxyethylene ether (EL) series, hydrogenated castor oil polyoxyethylene ether (HEL) series, fatty alcohol polyoxyethylene ether (MOA) series, isomeric alcohol polyoxyethylene ether (E13) series, fatty acid polyoxyethylene ester (A) series surfactant, polyethylene glycol (PEG) series or polypropylene glycol (PPG) series surfactant. The above nonionic surfactants are used to further improve the stability of the water dispersion system.

[0037] In particular, in order to better play the role of emulsifier and improve the stability of the water dispersion system, preferably, among at least two non-ionic surfactants, the castor oil polyoxyethylene ether (EL) series does not exist at the same time as the nonylphenol polyoxyethylene ether (NP) series, the octylphenol polyoxyethylene ether (OP) series or the polyethylene glycol (PEG) series, and the fatty acid polyoxyethylene ester (A) series does not exist at the same time as the fatty alcohol polyoxyethylene ether (MOA) series; preferably, among at least one anionic surfactant and at least one nonionic surfactant, the anionic surfactant is not a sulfate-type anionic surfactant.

[0038] In order to better compound the above-mentioned reactive hindered amine light stabilizer and reactive ultraviolet absorber, form better dispersion in the water-based polymer material and exert better long-term protection ability, in a preferred embodiment, R 1 ' is a C6-C10 alkyl group; R 1 , R2 , R 3 and R 4 are independently selected from methyl or tert-butyl, R 5 An alkyl group or a mixed alkyl group selected from C12 to C16. Preferably, the reactive ultraviolet absorber is one or more, and when the reactive ultraviolet absorber is multiple, R 5 Different (this is equivalent to R 5 Mixed alkyl). By selecting the above substituents, the corresponding reactive hindered amine light stabilizer and reactive ultraviolet absorber are more easily stably dispersed in water under the action of emulsifier and optional co-emulsifier.

[0039] Most preferably, the reactive hindered amine light stabilizer is The reactive ultraviolet absorber is

[0040] In a preferred embodiment, in the water-dispersible reactive light stabilizer, the weight ratio of the reactive hindered amine light stabilizer to the reactive ultraviolet absorber is 0-95:0-95, preferably 5-40:10-70, and more preferably 20-30:45-55. By controlling the weight ratio of the two within the above range, in addition to having a better compounding effect, a more significant synergistic effect can be exerted after being applied to the waterborne polymer material.

[0041] The use of sulfonate anionic surfactants or phosphate anionic surfactants has a key impact on stabilizing the aqueous dispersion system. In order to better play this role, illustratively, the sulfonate anionic surfactant can be one or more of alkylbenzene sulfonate (LAS or ABS), α-olefin sulfonate (AOS), alkyl sulfonate (AS or SAS), α-sulfonyl monocarboxylic acid and its derivatives (MES), fatty acid sulfonalkyl ester or fatty acid sulfonalkyl amide; the phosphate anionic surfactant is one or more of alkyl phosphate monoester salt, alkyl phosphate diester salt (AP), alcohol ether, ester ether phosphate ester salt monoester, ester ether phosphate diester salt.

[0042] Exemplarily, the octylphenol polyoxyethylene ether (OP) series surfactant is selected from at least one of OP-4, OP-5, OP-6, OP-7, and OP-10; the nonylphenol polyoxyethylene ether (NP) series surfactant is selected from at least one of NP-4, NP-5, NP-6, NP-7, and NP-10; the castor oil polyoxyethylene ether (EL) series surfactant is selected from at least one of EL-10, EL-12, EL-20, EL-30, EL-40, and EL-60; the hydrogenated castor oil polyoxyethylene ether (HEL) series surfactant is selected from at least one of HEL-20 and HEL-40; the fatty alcohol polyoxyethylene ether (MOA) series surfactant is selected from MOA-3, MOA-4, MOA- 5. At least one of MOA-7 and MOA-9; the isomeric alcohol polyoxyethylene ether (E13) series surfactant is selected from at least one of E1302, E1304, E1306, E1308, E1310, and E1312; the ester nonionic surfactant is a fatty acid polyoxyethylene ester (A) series surfactant selected from at least one of A105, A110, and A115; the polyethylene glycol (PEG) series surfactant is selected from at least one of PEG200, PEG300, PEG400, PEG600, PEG800, and PEG1000; the polypropylene glycol (PPG) series surfactant is selected from at least one of PPG200, PPG400, PPG600, and PPG1000.

[0043] More preferably, when the first component contains a reactive ultraviolet absorber, the emulsifier is a compound of a fatty alcohol polyoxyethylene ether series surfactant and an isomeric alcohol polyoxyethylene ether series surfactant; preferably, the weight ratio of the fatty alcohol polyoxyethylene ether series surfactant and the isomeric alcohol polyoxyethylene ether series surfactant is 5-7.5:5-10; more preferably, the emulsifier is a compound of a MOA-3 surfactant and an E-1310 surfactant; when the first component contains only a reactive hindered amine light stabilizer, the emulsifier is a compound of a fatty alcohol polyoxyethylene ether series surfactant and a castor oil polyoxyethylene ether series surfactant; preferably, the weight ratio of the fatty alcohol polyoxyethylene ether series surfactant and the castor oil polyoxyethylene ether series surfactant is 2-4:2-5.2; more preferably, the emulsifier is a compound of a MOA-3 surfactant and an EL-10 surfactant. In the above-mentioned water-dispersible reactive light stabilizer of the present invention, depending on whether the first component contains a reactive ultraviolet absorber, the above-mentioned specific composite surfactant is preferably used, which is more conducive to forming a tightly arranged interfacial film at the interface between the two phases, and helps to further maintain the stability of the application system.

[0044] In a preferred embodiment, the amount of the emulsifier is 10-30% by weight of the first component, such as 12%, 15%, 18%, 20%, 22%, 25%, 28% and intermediate values ​​thereof, and more preferably 13-23%. The above amount of emulsifier is more conducive to improving the dispersibility and stability of the composite light stabilizer in the water-based polymer material.

[0045] The role of the above-mentioned co-emulsifier is to adsorb on the oil-water interface, further reduce the interfacial tension, enhance the fluidity of the interfacial film, reduce the bending energy required for the emulsion to form, and enable the emulsion to form spontaneously. The co-emulsifier can form an interfacial barrier on the surface of the droplet, delaying the migration of the composite light stabilizer from small droplets to large droplets. It is generally required that the co-emulsifier is soluble in the composite light stabilizer but insoluble in water. The better the water solubility of the co-emulsifier, the worse the delay effect. There are two mechanisms for the co-emulsifier to achieve emulsification: one is to combine with the composite light stabilizer through the interaction of dipoles or hydrogen bonds, so that the composite light stabilizer is dispersed in water to achieve mutual solubility; the other is that the amphiphilic molecules form micelles in water that have solubilizing ability for the composite light stabilizer, and achieve mutual solubility through the solubilization of the micelles. In order to give full play to the above-mentioned role, the co-emulsifier is preferably a fatty alcohol of C8 to C18, and more preferably dodecanol. When the water-dispersible reactive light stabilizer contains reactive ultraviolet absorber UV-400, the water-dispersible reactive light stabilizer also contains a co-emulsifier; more preferably, the amount of the co-emulsifier is 3 to 10% by weight of the first component, for example 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10% and any value therebetween, more preferably 3.3 to 6.7%.

[0046] According to another aspect of the present invention, a water-based polymer material includes a light stabilizer, wherein the light stabilizer is the water-dispersible reactive light stabilizer. and It is in liquid form at room temperature, and the two are more easily stably dispersed in water under the action of emulsifiers and optional co-emulsifiers. Therefore, the water-dispersible reactive light stabilizer provided by the present invention has good compatibility with water-based polymer materials, can be stably added to water-based polymer materials without adding co-solvents, and fully ensures the environmental protection of water-based polymer materials without VOC hazards.

[0047] and, The structure retains the main body of the low-alkalinity N-OR type, and introduces a hydroxyl group that can participate in the reaction at its other end. The hydroxyl group can chemically cross-link with the functional groups in the polymer material, such as the isocyanate group of the polyurethane material, the free amine or ether bond on the amino resin, and the epoxy group in the epoxy material, and finally the small molecule hindered amine light stabilizer is bonded to the matrix polymer chain. In particular, when the above-mentioned reactive hindered amine light stabilizer and reactive ultraviolet absorber are used as the main components of the light stabilizer, the two not only have a good compounding effect, but also exist in the form of chemical linkage after being applied to the water-based polymer material, have better long-term effectiveness, are not easy to volatilize, migrate, dissolve, etc., can effectively protect the polymer material for a long time, so that the modified water-based polymer material has a better performance in long-term anti-aging effect.

[0048] In order to further enhance the anti-aging performance of the waterborne polymer material, in a preferred embodiment, the amount of the effective component of the light stabilizer (i.e., the first component composed of the reactive hindered amine light stabilizer and / or the reactive ultraviolet absorber) added to the waterborne polymer material is 0.1-10% based on the solid components. Based on the solid components, it represents the proportion of the effective component of the light stabilizer relative to the solid components in the waterborne polymer material.

[0049] The above-mentioned water-based polymer material can be a commonly used type in the polymer field. The above-mentioned specific polymer material types include but are not limited to water-based acrylic resin materials, water-based polyurethane materials, water-based amino resin materials, water-based epoxy resin materials, water-based alkyd resin materials, water-based polyester resin materials or water-based phenolic resin materials.

[0050] According to another aspect of the present invention, a water-based polymer material product comprises a light stabilizer, which is the above-mentioned water-dispersible reactive light stabilizer, such as but not limited to water-based paint, water-based adhesive, water-based ink, water-based sealant, water-based leather or water-based sole slurry.

[0051] The water-dispersible reactive light stabilizer of the present invention can be directly added to the water-based polymer material for use or diluted with water before use. Under good stirring conditions, the water-dispersible light stabilizer can be directly added to the water-based polymer material for use; the water-dispersible light stabilizer is generally used after dilution. According to the characteristics of the water-based polymer material, the water-dispersible light stabilizer and water are diluted in a ratio of 1:1-1:100, preferably 1:1-1:50, preferably 1:3-1:10, which can effectively avoid the problem of foaming.

[0052] The present application is further described in detail below in conjunction with specific embodiments. These embodiments should not be construed as limiting the scope of protection claimed in the present application.

[0053] Preparation of water-based dispersible reactive composite light stabilizer

[0054] The following LRHALS stands for Reactive Hindered Amine Light Stabilizer

[0055] The water-dispersible reactive light stabilizers in the embodiments of the present invention are prepared by mixing and stirring. When mixing, the mixture is heated to 50° C. and stirred until uniform.

[0056] Example 1

[0057] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 5 g of emulsifier MOA-3, 5 g of emulsifier E-1310, and 5 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0058] Example 2

[0059] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 7.5 g of emulsifier MOA-3, 10 g of emulsifier E-1310, and 5 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0060] Example 3

[0061] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 7.5 g of emulsifier MOA-3, 7.5 g of emulsifier E-1310, and 2.5 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0062] Example 4

[0063] 31.2 g of reactive light stabilizer LRHALS, 3 g of emulsifier MOA-3, and 3.2 g of emulsifier EL-10 were prepared into a water-dispersible reactive light stabilizer.

[0064] Example 5

[0065] 31.2 g of reactive light stabilizer LRHALS, 4 g of emulsifier MOA-3, and 5.2 g of emulsifier EL-10 were prepared into a water-dispersible reactive light stabilizer.

[0066] Example 6

[0067] 31.2 g of reactive light stabilizer LRHALS, 3 g of emulsifier MOA-3, and 2 g of emulsifier EL-10 were prepared into a water-dispersible reactive light stabilizer.

[0068] Example 7

[0069] 31.2 g of reactive light stabilizer LRHALS, 2 g of emulsifier MOA-3, and 3.2 g of emulsifier EL-10 were prepared into a water-dispersible reactive light stabilizer.

[0070] Comparative Example 1

[0071] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 12.5 g of emulsifier MOA-3, and 5 g of co-emulsifier dodecanol were used to prepare a water-dispersible reactive light stabilizer.

[0072] Comparative Example 2

[0073] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 12.5 g of emulsifier E-1310, and 5 g of co-emulsifier dodecanol were used to prepare a water-dispersible reactive light stabilizer.

[0074] Comparative Example 3

[0075] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 5 g of emulsifier MS-1, 5 g of emulsifier MOA-3, and 5 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0076] Comparative Example 4

[0077] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 5 g of emulsifier AES, 5 g of emulsifier MOA-3, and 5 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0078] Comparative Example 5

[0079] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 5 g of emulsifier EL-1310, 5 g of emulsifier OP-7, and 5 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0080] Comparative Example 6

[0081] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 5 g of emulsifier EL-1310, 5 g of emulsifier NP-10, and 5 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0082] Comparative Example 7

[0083] A water-dispersible reactive light stabilizer was prepared by adding 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 5 g of emulsifier A110, 5 g of emulsifier MOA-3, and 5 g of co-emulsifier dodecanol.

[0084] Comparative Example 8

[0085] 50 g of reactive ultraviolet absorber UV-400, 25 g of reactive light stabilizer LRHALS, 5 g of emulsifier EL-1310, 5 g of emulsifier PEG-200, and 5 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0086] Comparative Example 9

[0087] 14.5 g of reactive ultraviolet absorber UV-400, 4.1 g of emulsifier EL-10, and 3.9 g of co-emulsifier dodecanol were prepared into a water-dispersible reactive light stabilizer.

[0088] Comparative Example 10

[0089] 31.2 g of reactive light stabilizer LRHALS, 3 g of emulsifier MOA-3, and 5.2 g of emulsifier E-1310 were prepared into a water-dispersible reactive light stabilizer.

[0090] Comparative Example 11

[0091] 31.2 g of reactive light stabilizer LRHALS, 3 g of emulsifier MOA-3, and 3.2 g of emulsifier MS-1 were prepared into a water-dispersible reactive light stabilizer.

[0092] Comparative Example 12

[0093] 31.2 g of reactive light stabilizer LRHALS, 3 g of emulsifier MOA-3, and 3.2 g of emulsifier AES were prepared into a water-dispersible reactive light stabilizer.

[0094] Comparative Example 13

[0095] 31.2 g of reactive light stabilizer LRHALS, 3 g of emulsifier OP-7, and 3.2 g of emulsifier EL-10 were prepared into a water-dispersible reactive light stabilizer.

[0096] Comparative Example 14

[0097] 31.2 g of reactive light stabilizer LRHALS, 3 g of emulsifier MOA-3, and 3.2 g of emulsifier A110 were used to prepare a water-dispersible reactive light stabilizer.

[0098] Comparative Example 15

[0099] 31.2 g of reactive light stabilizer LRHALS, 3 g of emulsifier PEG-200, and 3.2 g of emulsifier EL-10 were prepared into a water-dispersible reactive light stabilizer.

[0100] Performance evaluation test

[0101] (1) Evaluation of water dispersibility and static stability

[0102] Visual observation of the water dispersion effect of the composite light stabilizer emulsion prepared in the above embodiment after mixing the water-based dispersible reactive composite light stabilizer and deionized water in a weight ratio of 1:5 at the initial stage, after standing for 3 days, and after standing for 21 days. A uniform emulsion has a better water dispersion effect, and vice versa. The water dispersion is left to stand at room temperature to observe whether there are stratification, sedimentation, turbidity, gel, etc. The results are shown in Table 1:

[0103] Table 1

[0104]

[0105]

[0106] (2) Storage stability at high and low temperatures

[0107] In order to meet the needs of different regions around the world at different temperatures, the composite light stabilizer was stored at 50°C, room temperature (25°C), 2°C, -7°C and -20°C, and the occurrence of stratification, sedimentation, turbidity, gelation, etc. was recorded and observed every day. The results are shown in Table 2:

[0108] Table 2

[0109]

[0110]

[0111]

[0112] (3) Long-term storage stability in water-based coatings

[0113] Solvent-based reactive composite light stabilizers cannot be dispersed evenly in water (there is no stratification and oily precipitation). Therefore, when used in water-based polymer materials, especially water-based coatings, it is difficult to disperse evenly, which can easily cause the coating to lose gloss and bloom. The water-dispersible reactive light stabilizer can be well dispersed in water-based coatings, and the addition method is more convenient.

[0114] The composite light stabilizer was added to a single-component acrylic water-based industrial paint system (specific components are shown in Table 4) at a weight ratio of 2%, and placed at room temperature. The surface was observed every few days for delamination and precipitation. The results are shown in Table 3:

[0115] Table 3

[0116]

[0117]

[0118] (4) Long-term weathering effect evaluation

[0119] A. Evaluation of water-based dispersible reactive composite light stabilizers in improving weathering performance in one-component acrylic water-based industrial paints.

[0120] The following one-component acrylic water-based industrial paint was used as the water-based polymer material to be evaluated, and its formula is as follows:

[0121] Table 4

[0122] name Proportion supplier Setaqua 9160 7 Allnex Resins Setalux 6100GR-68 19 Allnex Resins Setaqua B E270 5 Allnex Resins Cymel 373 11 Changxin Resin Titanium dioxide, R960 18 DuPont Barium sulfate 2 Bentone EW 0.5 Hemmings Tego 810 0.2 Evonik Tego 450 0.5 Evonik Dipropylene glycol methyl ether 5 Ethylene glycol monobutyl ether 7 Deionized water 26.8

[0123] Based on the above water-based industrial paint system, the composite light stabilizers of Example 1 and Example 4 were added respectively, and the added amount was 2.1% of the total weight ratio of the water-based industrial paint. The following test paint samples were obtained by adding different types of light stabilizers.

[0124] The coating test samples were made by spraying in the following way: the base material was uniformly selected as steel plate, and both sides were uniformly polished with 800-mesh sandpaper. Both sides were uniformly sprayed with gray epoxy primer with a film thickness of 20 microns, leveled at room temperature for 10 minutes, placed in a 120℃ oven for 30 minutes, and uniformly polished with 800-mesh sandpaper; uniformly sprayed with water-based gray mid-coat with a film thickness of 25 microns, leveled at room temperature for 10 minutes, placed in an 80℃ oven for 10 minutes, then heated to 145℃ and baked in an oven for 30 minutes, and uniformly polished with 2000-mesh sandpaper; sprayed with white water-based industrial paint topcoat with a film thickness of 35 microns, leveled at room temperature for 10 minutes, and placed in a 130-degree oven for 20 minutes. Xenon lamp and QUV tests were started 3 days after surface adjustment.

[0125] The QUV test conditions are as follows: the test board is placed in a QUV ultraviolet aging light box (model: Q-Lab QUV / Spray ultraviolet fluorescent aging test box), and the test standard refers to ASTM G154-06 cylce.

[0126] The xenon lamp test conditions are as follows: the test panel is placed in a xenon lamp aging box (model: ATLAS Ci4400 xenon lamp aging box), and the test standard is SAE J2527 / J1960.

[0127] Take out the test board at regular intervals to measure the color difference. The colorimeter is: X-rite MA5 spectrophotometer. The test results are shown in Figure 1 and Figure 2 ,in Figure 1The color difference change curve of the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 after application in a single-component acrylic water-based industrial paint in a QUV aging test is shown (the blank group is a group without adding an anti-aging additive). Figure 2 The color difference change curve of the xenon lamp aging test after the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 is applied to the one-component acrylic water-based industrial paint is shown (the blank group is without adding anti-aging additive).

[0128] B. Evaluation of the weather resistance improvement of water-based dispersible reactive composite light stabilizer in two-component water-based acrylic polyurethane topcoat. The following two-component water-based acrylic polyurethane topcoat was used as the water-based polymer material to be evaluated, and its formula is as follows:

[0129] Table 5

[0130] Component A: name Proportion supplier Setaqua 6515 45 Allnex Resins SETAL 6306SS-60 4.2 Allnex Resins Aerosil 972 0.5 Evonik Titanium dioxide, R960 0.7 DuPont Ultramarine Blue, EP-25 20 Nubilai Barium sulfate 1.2 BYK 011 0.3 BYK BYK 348 0.4 BYK Dipropylene glycol methyl ether 3 Dipropylene glycol butyl ether 3 Deionized water 21.7

[0131] Component B: project wt% supplier Bayhydur 2655 9.45 Covestro

[0132] Based on the above waterborne acrylic polyurethane topcoat system, A:B is NCO:OH=1.1:1. The composite light stabilizers of Example 1 and Example 4 are added respectively, and the addition amount is 2.1% of the total weight ratio of the two-component waterborne acrylic polyurethane topcoat. The following test coating samples are obtained by adding different types of light stabilizers.

[0133] The coating test samples were made by spraying in the following way: the base material was uniformly selected as steel plate, and both sides were uniformly polished with 800-mesh sandpaper. Both sides were uniformly sprayed with gray epoxy primer with a film thickness of 20 microns, leveled at room temperature for 10 minutes, placed in a 120℃ oven for 30 minutes, and uniformly polished with 800-mesh sandpaper; uniformly sprayed with solvent-based gray midcoat with a film thickness of 25 microns, leveled at room temperature for 10 minutes, placed in a 60℃ oven for 30 minutes, and uniformly polished with 2000-mesh sandpaper; sprayed with blue water-based topcoat with a film thickness of 50 microns, leveled at room temperature for 10 minutes, and placed in an 80℃ oven for 20 minutes. Xenon lamp and QUV tests were started 3 days after surface adjustment.

[0134] The QUV test conditions are as follows: the test board is placed in a QUV ultraviolet aging light box (model: Q-Lab QUV / Spray ultraviolet fluorescent aging test box), and the test standard refers to ASTM G154-06 cylce.

[0135] The xenon lamp test conditions are as follows: the test panel is placed in a xenon lamp aging box (model: ATLAS Ci4400 xenon lamp aging box), and the test standard is SAE J2527 / J1960.

[0136] Take out the test board at regular intervals to measure the color difference. The colorimeter is: X-rite MA5 spectrophotometer. The test results are shown in Figure 3 and Figure 4 ,in Figure 3 The color difference change curve of the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 after application in a two-component water-based acrylic polyurethane topcoat in a QUV aging test is shown (the blank group is a group without adding an anti-aging additive). Figure 4 The color difference change curve of the xenon lamp aging test after the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 is applied to the two-component water-based acrylic polyurethane topcoat is shown (the blank group is without adding anti-aging additive).

[0137] The hydroxyl group in the water-dispersible reactive light stabilizer of the present invention can be chemically cross-linked with the isocyanate group in the polyurethane resin, and finally the small molecule hindered amine light stabilizer is linked to the matrix polymer chain. Therefore, adding this composite light stabilizer has a better long-term anti-aging effect on the above system.

[0138] C. Evaluation of the anti-migration properties of water-based dispersible reactive composite light stabilizers in plastic coatings.

[0139] With the development trend of replacing steel and wood with plastic, the amount of plastic used continues to grow. In order to achieve beautification and protection effects, a layer of plastic coating can be applied on the surface of the plastic substrate. For plastic surfaces such as cars that are used outdoors for a long time, the coating may age due to the influence of light and heat. The addition of hindered amine light stabilizers can slow down this process. However, many plastic substrates have good plasticity themselves, and some "free space" is provided in the substrate for the migration of small molecule hindered amine light stabilizers. This test uses PP, a typical plastic material, for testing.

[0140] Based on the water-based acrylic polyurethane topcoat system (the formula is the same as Table 6), the composite light stabilizer is added in the blank group at a weight ratio of 2.1%.

[0141] The following test coating samples were obtained by adding different types of light stabilizers.

[0142] The coating test samples were made by spraying in the following way: PP board was used as the base material, and the PP base material special primer was sprayed to a film thickness of 6 microns, and leveled at room temperature for 10 minutes until the surface was dry; the solvent-based gray midcoat was sprayed to a film thickness of 25 microns, leveled at room temperature for 10 minutes, placed in a 60℃ oven for 30 minutes, and polished with 2000 mesh sandpaper; the blue water-based topcoat was sprayed to a film thickness of 50 microns, leveled at room temperature for 10 minutes, and placed in an 80℃ oven for 20 minutes. Xenon lamp and QUV tests were started 3 days after the surface was adjusted.

[0143] The QUV test conditions are as follows: the test board is placed in a QUV ultraviolet aging light box (model: Q-Lab QUV / Spray ultraviolet fluorescent aging test box), and the test standard refers to ASTM G154-06 cylce.

[0144] The xenon lamp test conditions are as follows: the test panel is placed in a xenon lamp aging box (model: ATLAS Ci4400 xenon lamp aging box), and the test standard is SAE J2527 / J1960.

[0145] Take out the test board at regular intervals to measure the color difference. The colorimeter is: X-rite MA5 spectrophotometer. The test results are shown in Figure 5 and Figure 6 ,in Figure 5 The color difference curve of the QUV aging test after the water-based dispersible reactive composite light stabilizer provided in Example 1 and Example 4 is applied to the plastic coating is shown (the blank group is without adding anti-aging additives). Figure 6 The color difference change curves of the xenon lamp aging test after the water-based dispersible reactive composite light stabilizers provided in Example 1 and Example 4 are applied to plastic coatings are shown (the blank group is the one without adding anti-aging additives).

[0146] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water-dispersible reactive light stabilizer, characterized in that: The water-dispersible reactive light stabilizer comprises: The first component: a reactive hindered amine light stabilizer and / or a reactive ultraviolet absorber; wherein the reactive hindered amine light stabilizer is R1' is a C1-C10 alkyl group; the reactive ultraviolet absorber is R1, R2, R3 and R4 are independently selected from C1-C4 alkyl groups, and R5 is selected from C8-C20 alkyl groups or mixed alkyl groups; The second component: an emulsifier; the emulsifier is at least two nonionic surfactants, or includes at least one anionic surfactant and at least one nonionic surfactant; the anionic surfactant is a sulfonate anionic surfactant or a phosphate anionic surfactant; Optional third component: co-emulsifier; When the first component contains the reactive ultraviolet absorber, the water-dispersible reactive light stabilizer must contain the third component.

2. The water-dispersible reactive light stabilizer according to claim 1, characterized in that Each of the nonionic surfactants is independently selected from octylphenol polyoxyethylene ether series, nonylphenol polyoxyethylene ether series, castor oil polyoxyethylene ether series, hydrogenated castor oil polyoxyethylene ether series, fatty alcohol polyoxyethylene ether series, isomeric alcohol polyoxyethylene ether series, fatty acid polyoxyethylene ester series surfactants, polyethylene glycol series or polypropylene glycol series surfactants; Preferably, among the at least two nonionic surfactants, the castor oil polyoxyethylene ether series does not exist simultaneously with the nonylphenol polyoxyethylene ether series, the octylphenol polyoxyethylene ether series or the polyethylene glycol series, and the fatty acid polyoxyethylene ester series does not exist simultaneously with the fatty alcohol polyoxyethylene ether series; Preferably, among the at least one anionic surfactant and the at least one nonionic surfactant, the anionic surfactant is not a sulfate-type anionic surfactant.

3. The water-dispersible reactive light stabilizer according to claim 1, characterized in that R1' is a C6-C10 alkyl group; R1, R2, R3 and R4 are independently selected from methyl or tert-butyl, and R5 is selected from C12-C16 alkyl or mixed alkyl; Preferably, the reactive ultraviolet absorber is one or more, and when the reactive ultraviolet absorber is multiple, R5 in different reactive ultraviolet absorbers is different; Preferably, the reactive hindered amine light stabilizer is The reactive ultraviolet absorber is 4. The water-dispersible reactive light stabilizer according to any one of claims 1 to 3, characterized in that In the water-dispersible reactive light stabilizer, the weight ratio of the reactive hindered amine light stabilizer to the reactive ultraviolet absorber is 0-95:0-95, preferably 5-40:10-70, and more preferably 20-30:45-55.

5. The water-dispersible reactive light stabilizer according to any one of claims 1 to 4, characterized in that The sulfonate type anionic surfactant is alkylbenzene sulfonate, α-olefin sulfonate, alkyl sulfonate, α-sulfomonocarboxylic acid and its derivatives, fatty acid sulfonalkyl ester or fatty acid sulfonalkyl amide; the phosphate ester anionic surfactant is alkyl phosphate monoester salt, alkyl phosphate diester salt, alcohol ether, ester ether phosphate monoester salt or ester ether phosphate diester salt; The octylphenol polyoxyethylene ether series surfactant is selected from at least one of OP-4, OP-5, OP-6, OP-7, and OP-10; the nonylphenol polyoxyethylene ether series surfactant is selected from at least one of NP-4, NP-5, NP-6, NP-7, and NP-10; the castor oil polyoxyethylene ether series surfactant is selected from at least one of EL-10, EL-12, EL-20, EL-30, EL-40, and EL-60; the hydrogenated castor oil polyoxyethylene ether series surfactant is selected from at least one of HEL-20 and HEL-40; the fatty alcohol polyoxyethylene ether series surfactant is selected from MOA-3, MOA-4, MOA-5, M At least one of OA-7 and MOA-9; the isomeric alcohol polyoxyethylene ether series surfactant is selected from at least one of E1302, E1304, E1306, E1308, E1310, and E1312; the ester nonionic surfactant is a fatty acid polyoxyethylene ester series surfactant selected from at least one of A105, A110, and A115; the polyethylene glycol series surfactant is selected from at least one of PEG200, PEG300, PEG400, PEG600, PEG800, and PEG1000; the polypropylene glycol series surfactant is selected from at least one of PPG200, PPG400, PPG600, and PPG1000.

6. The water-dispersible reactive light stabilizer according to any one of claims 1 to 5, characterized in that When the first component contains the reactive ultraviolet absorber, the emulsifier is a compound of the fatty alcohol polyoxyethylene ether series surfactant and the isomeric alcohol polyoxyethylene ether series surfactant; preferably, the weight ratio of the fatty alcohol polyoxyethylene ether series surfactant to the isomeric alcohol polyoxyethylene ether series surfactant is 5-7.5:5-10; more preferably, the emulsifier is a compound of MOA-3 surfactant and E-1310 surfactant; When the first component contains only the reactive hindered amine light stabilizer, the emulsifier is a compound of the fatty alcohol polyoxyethylene ether series surfactant and the castor oil polyoxyethylene ether series surfactant; preferably, the weight ratio of the fatty alcohol polyoxyethylene ether series surfactant to the castor oil polyoxyethylene ether series surfactant is 2-4:2-5.2; more preferably, the emulsifier is a compound of MOA-3 surfactant and EL-10 surfactant.

7. The water-dispersible reactive light stabilizer according to any one of claims 1 to 6, characterized in that The amount of the emulsifier used is 10-30% by weight of the first component, more preferably 13-23% by weight.

8. The water-dispersible reactive light stabilizer according to any one of claims 1 to 7, characterized in that The amount of the co-emulsifier is 3-10% by weight of the first component, more preferably 3.3-6.7%; The co-emulsifier is a C8 to C18 fatty alcohol, preferably lauryl alcohol.

9. A water-based polymer material, comprising a light stabilizer, characterized in that: The light stabilizer is a water-dispersible reactive light stabilizer according to any one of claims 1 to 8; Preferably, the water-based polymer material is a water-based acrylic resin material, a water-based polyurethane material, a water-based amino resin material, a water-based epoxy resin material, a water-based alkyd resin material, a water-based polyester resin material or a water-based phenolic resin material.

10. A water-based polymer material product, characterized in that: The water-dispersible reactive light stabilizer according to any one of claims 1 to 8 is included, and the water-based polymer material product is a water-based paint, a water-based adhesive, a water-based ink, a water-based sealant, a water-based leather or a water-based sole slurry.

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