CN113603850B - High-wear-resistance hydrophilic resin, high-wear-resistance solvent-free anti-fog coating, and preparation method and application thereof - Google Patents
High-wear-resistance hydrophilic resin, high-wear-resistance solvent-free anti-fog coating, and preparation method and application thereof Download PDFInfo
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- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
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Abstract
The invention discloses a high-wear-resistance hydrophilic resin, a high-wear-resistance solvent-free anti-fog paint, a preparation method and application thereof, wherein the anti-fog paint comprises the following components: the high wear-resistant hydrophilic resin, the hydrophobic resin, the reactive diluent, the photoinitiator and the auxiliary agent; the hydrophilic resin is a UV curable hydrophilic polymer designed by the invention. The invention designs the hydrophilic resin with high wear resistance, and the hydrophilic resin is applied to an anti-fog formula to obtain the high wear-resistant solvent-free anti-fog paint, which is safe and nontoxic, can form films on various types of substrates, can realize rapid solidification under ultraviolet irradiation, has high bonding strength with the substrates, and has good transparency, wear resistance and chemical resistance and excellent anti-fog performance.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a high-wear-resistance hydrophilic resin, a high-wear-resistance solvent-free anti-fog coating, and a preparation method and application thereof.
Background
The high transparent material is an indispensable material in our daily life production, but the material is easy to generate a fog phenomenon in the use process, so that the light transmittance of the surface of the material is reduced, the sight is influenced, and a plurality of inconveniences and even serious harm are brought to life. In recent years, antifogging technology has been increasingly paid attention to, and development of hydrophilic antifogging coatings has been most advanced, and a series of advanced technologies and relatively mature products such as optical lenses, automobile display screens, goggles, visors, helmet panels and the like have been formed. The hydrophilic antifogging paint is one kind of functional material, and is one of the most effective ways of antifogging.
In order to improve the abrasion resistance of anti-fog coatings, it is common in the current anti-fog art to add "hard" abrasion resistant materials to the anti-fog formulation as a protective coating application to prevent scratching or damage to the coating. For example: CN106752623B synthesizes polyacrylate with a main chain containing a silane coupling agent (MPS), glycidyl Methacrylate (GMA) and a sulfonic hydrophilic monomer (AMPS), and adopts tetramine (TE 0S) and triethylenetetramine as curing agents to react with a main chain siloxane group and an epoxy group respectively to improve crosslinking density and wear resistance; CN101591494B uses an aziridine crosslinking agent to react with carboxyl groups on the polyacrylate backbone to improve crosslinking degree and wear resistance of the coating; however, the above system requires mixing and then applying to a substrate such as transparent glass or plastic substrate, and has a short gel time and inconvenient use. CN102086348B uses blocked polyurethane to extend the gel reaction time, but the preparation method is complex, the deblocking reaction is difficult to be completely performed, and the performance of the coating is affected. The organic solvent is added into the anti-fog formula to serve as a dispersion medium so as to reduce the viscosity of the system, enhance the stability of the system, facilitate leveling and facilitate the operation of a coating process. However, organic solvents can cause harm to the environment and organisms, which is not beneficial to the sustainable development of the environment. In summary, it has been reported that it is difficult to obtain a coating having excellent antifogging properties without solvent and with good abrasion resistance.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide the high-wear-resistance solvent-free anti-fog coating which does not contain an organic solvent, can be directly subjected to UV curing after being coated, can form films on various types of substrates, can realize quick curing under ultraviolet irradiation, has high bonding strength with the substrates, and has good transparency, wear resistance and chemical resistance and excellent anti-fog performance.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
in one aspect, the invention provides a high wear-resistant hydrophilic resin, which is prepared by mixing a high-hardness monomer and diethanolamine according to a molar ratio of 1:1-1:8 to give a hydrophilically modified prepolymer 1, and then reacting the hydroxyl-containing mixture with a diisocyanate in a molar ratio of hydroxyl groups (-OH) to isocyanate (-NCO) of 1:1 to obtain a partially end-capped prepolymer 2, and finally, the prepolymer 1 and the prepolymer 2 are subjected to a molar ratio of 1:1-1:24, mixing and reacting.
The high-hardness monomer comprises at least one of isocyanurate triacrylate, dipentaerythritol hexaacrylate, acryloxypropyl cage-shaped polysilsesquioxane, octaepoxycyclohexyl ethyl cage-shaped polysilsesquioxane and glycidol ether oxypropyl cage-shaped polysilsesquioxane;
the mixture containing hydroxyl is prepared by mixing a hydrophilic surfactant and a hydroxyl acrylic ester monomer according to the proportion of 1:1-1:4;
the hydrophilic surfactant is a nonionic monohydroxy polymer having polyoxyethylene segments.
Further, the monohydroxy polymer comprises at least one of polyethylene glycol monomethyl ether (molecular weight 400-1000), nonylphenol polyoxyethylene ether and octylphenol polyoxyethylene ether;
preferably, the hydroxy acrylate monomer includes at least one of hydroxyethyl methacrylate (HEMA), hydroxyethyl acrylate (HEA), hydroxypropyl acrylate (HPA), 4-hydroxybutyl acrylate (4 HBA), pentaerythritol triacrylate (PETA);
preferably, the diisocyanate comprises at least one of isophorone diisocyanate (IPDI), toluene Diisocyanate (TDI), hexamethylene Diisocyanate (HDI), dicyclohexylmethane diisocyanate (HMDI), modified diphenylmethane diisocyanate (liquefied MDI);
the reaction for producing the prepolymer 2 is also added with a catalyst, a polymerization inhibitor and an antioxidant, wherein the preferred catalyst is dibutyl tin dilaurate, the polymerization inhibitor is para-hydroxyanisole, and the antioxidant is 2, 6-di-tert-butyl-4-methylphenol.
In still another aspect, the invention provides a high-wear-resistance solvent-free anti-fog coating, which is prepared from the following components in parts by mass: 20-50 parts of hydrophilic resin, 30-70 parts of hydrophobic resin, 5-20 parts of reactive diluent monomer, 3-5 parts of photoinitiator and 0.5-1.0 part of flatting agent; the hydrophilic resin is the high wear-resistant hydrophilic resin;
preferably, the hydrophobic resin is a urethane acrylate of at least six functionalities, including at least one of Cyanteb 1290, dissman 2421, dissman 242, changxing 6145-100, changxing 6195-100.
Preferably, the reactive diluent monomer includes at least one of trimethylolpropane triacrylate (TMPTA), ethoxylated trimethylolpropane triacrylate (ETPTA), pentaerythritol triacrylate (PETA), dipentaerythritol hexaacrylate (DPHA), acryloylmorpholine (ACMO), polyethylene glycol 400 diacrylate (PEG 400 DA), polyethylene glycol 600 diacrylate (PEG 600 DA), polyethylene glycol 1000 diacrylate (PEG 1000 DA);
preferably, the photoinitiator is a hydrogen abstraction type photoinitiator; preferably, the photoinitiator comprises at least one of photoinitiator 1173, TPO, BP, 184, 907.
Preferably, the leveling agent comprises at least one of a fluorine wetting leveling agent FSWET1010, a fluorine-containing leveling agent FS3100 and a polyether siloxane leveling agent TEGO 410.
The viscosity control of the solvent-free formula mainly consists in that the viscosity of the synthesized high-wear-resistance hydrophilic resin is low due to the fact that the synthesized hydrophilic resin adopts a simple grafting reaction, the chain extension reaction of a 2-2 functionality condensation system is not involved, and the resin has no structural unit or is the sum of the molecular weights of the reaction raw materials. Further, the chain structure in the hydrophilic resin is highly consistent with the structure of the reactive diluent, and is more easily diluted by the reactive diluent. The reactive diluent plays a role in diluting, and also plays a role in wear resistance and hydrophilicity, namely, the reactive diluent is divided into two types, namely hydrophilic type and wear-resistant type, the hydrophilic reactive diluent plays a role in improving hydrophilicity, and the wear-resistant type plays a role in improving wear resistance. Among the listed reactive diluents, trimethylolpropane triacrylate (TMPTA), ethoxylated trimethylolpropane triacrylate (ETPTA), pentaerythritol triacrylate (PETA), dipentaerythritol hexaacrylate (DPHA) are abrasion resistant; the acrylic morpholine (ACMO), polyethylene glycol 400 diacrylate (PEG 400 DA), polyethylene glycol 600 diacrylate (PEG 600 DA) and polyethylene glycol 1000 diacrylate (PEG 1000 DA) are hydrophilic.
The preparation method of the solvent-free high-wear-resistance anti-fog paint comprises the following steps of: dispersing and mixing 20-50 parts of high wear-resistant hydrophilic resin, 30-70 parts of hydrophobic resin, 5-20 parts of reactive diluent, 3-5 parts of photoinitiator and 0.5-1.0 part of flatting agent to obtain the anti-fog coating;
preferably, the method specifically comprises the following steps: and adding the reactive diluent into a container, sequentially adding the photoinitiator, the hydrophilic resin, the hydrophobic resin and the flatting agent in a stirring state, and stirring to obtain the anti-fog coating.
In a further aspect, the invention provides the application of the anti-fog coating in preparing an anti-fog coating.
In yet another aspect, the invention provides an anti-fog coating prepared by the method comprising: coating the antifogging coating on a substrate, and curing to form the antifogging coating;
preferably, the substrate comprises glass, plastic and metal, and particularly comprises automobile glass, building glass, advertising placards, bathroom mirrors, public transportation glass, iron plates, copper plates and aluminum alloy plates;
preferably, the coating method comprises knife coating, drip coating, roller coating, curtain coating and spin coating;
preferably, the curing method is cured by 200-2000mJ ultraviolet light.
The wear-resistant high-hardness monomer is selected from raw materials, has high hardness and high functionality (the functionality is more than or equal to 3), and is modified by utilizing the reaction of diethanolamine and double bonds or epoxy groups, so that two hydroxyl groups are newly added to replace each time one functionality is sacrificed in the high-hardness monomer to form a hydrophilically modified prepolymer 1; finally, the hydroxyl of the prepolymer 1 and-NCO of the prepolymer 2 are subjected to grafting reaction, and finally, the wear-resistant hydrophilic resin is formed. The proportion of double bonds grafted to the prepolymer 1 and hydrophilic chain segments can be adjusted by adjusting the dosage ratio of the hydrophilic surfactant to the hydroxy acrylic ester monomer in the mixture containing hydroxy groups, so that the functionality is improved.
The beneficial effects of the invention are as follows: the invention designs a UV-curable hydrophilic polymer with anti-fog and wear-resistant functions, and the hydrophilic polymer is applied to an anti-fog paint formula to obtain the anti-fog paint protected by the application, wherein the anti-fog paint does not contain a solvent, is safe and nontoxic, can be formed on various types of base materials, can be cured instantaneously under ultraviolet light, can be applied to continuous industrial production, has high bonding strength between a formed coating and the base materials, has good transparency, high hardness, scratch resistance and chemical resistance, and has excellent anti-fog effect, anti-fog durability, good water resistance and low viscosity.
Detailed Description
For better understanding of the present invention, the present invention will be further described in detail by the following detailed description, which should be understood to be merely illustrative of the present invention, not limiting the present invention, and any technical solution that does not materially alter the present invention still falls within the scope of the present invention.
The specific process parameters and the like described below are also merely examples of suitable ranges, i.e., one skilled in the art can make a suitable selection from the description herein and are not intended to be limited to the specific values described below.
Example 1
1. Preparation of high wear-resistant hydrophilic resin:
(a) Into a 100mL three-necked flask, 8.46g (0.02 mol) of isocyanuric acid triacrylate and 4.2g (0.04 mol) of diethanolamine were added, stirring was started and the temperature was raised to 65℃for 2 hours to obtain a hydrophilically modified prepolymer 1;
(b) A100 mL three-necked flask was additionally charged with 17.78g (0.08 mol) of isophorone diisocyanate and 0.021g (0.05 wt%) of dibutyltin dilaurate and stirring was started; sequentially weighing 0.11g (0.262 wt%) of p-hydroxyanisole, 0.22g (0.525 wt%) of 2, 6-di-tert-butyl-4-methylphenol and 24.0g (0.04 mol) of polyethylene glycol monomethyl ether 600 and 11.92g (0.04 mol) of pentaerythritol triacrylate (PETA), fully mixing until the materials are completely dissolved, transferring the materials into a constant-pressure dropping funnel, slowly dropping the materials into the three-neck flask at room temperature (the reaction is violently exothermic, controlling the dropping speed to avoid local overheating), continuously reacting at room temperature for 30min, heating to 60 ℃ to react until the content of isocyanate groups (-NCO) of the mixture reaches a theoretical value (measured by a di-n-butylamine hydrochloride method), cooling to obtain a partially-blocked prepolymer 2, drying and sealing and storing the partially-blocked prepolymer 2; dibutyl tin dilaurate DBTDL, p-hydroxyanisole MEHQ and 2, 6-di-tert-butyl-4-methylphenol BHT are all conventional choices, have no influence on performance, and play roles of a catalyst and a polymerization inhibitor.
(c) And mixing the prepolymer 1 and the prepolymer 2, and heating to 70 ℃ to react for 3 hours to obtain the high-wear-resistance hydrophilic resin with the functionality of 7.
2. Preparation of an antifogging coating:
(d) 15 parts of dipentaerythritol hexaacrylate (DPHA), 4 parts of polyethylene glycol 400 diacrylate (PEG 400 DA) and 5 parts of photo initiator TPO are added into a charging barrel container of a high-speed dispersing machine, stirring is started to carry out high-speed dispersion and dissolution, 45 parts of high-wear-resistance hydrophilic resin and 30 parts of hydrophobic resin Di Siman 2421,1 parts of flatting agent TEGO410 are sequentially added, and stirring is carried out uniformly, so that the anti-fog paint is obtained.
3. Preparation of a UV anti-fog coating: (e) preparation of UV anti-fog coating: and (3) uniformly scraping the antifogging coating prepared in the step (d) on a PC board by using a wire rod, and then placing the PC board on a conveyor type UV curing machine, and curing the PC board by using 1000mJ ultraviolet light to obtain the antifogging coating.
Example 2
1. Preparation of high wear-resistant hydrophilic resin:
(a) A250 mL three-neck flask is added with 40.11g (0.03 mol) of glycidol ether oxypropyl cage-shaped polysilsesquioxane and 25.23g (0.24 mol) of diethanolamine, stirring is started, and the temperature is raised to 65 ℃ for 2 hours to obtain a hydrophilically modified prepolymer 1;
(b) Another 500mL three-necked flask was charged with 125.92g (0.48 mol) of dicyclohexylmethane diisocyanate and 0.13g (0.05 wt%) of dibutyltin dilaurate, and stirring was started; and sequentially weighing 0.695g (0.262 wt%) of p-hydroxyanisole, 1.39g (0.525 wt%) of 2, 6-di-tert-butyl-4-methylphenol, 64.6g (0.1 mol) of octylphenol polyoxyethylene ether (OP-10), 40g (0.08 mol) of polyethylene glycol monomethyl ether 500 and 34.83g (0.3 mol) of hydroxyethyl acrylate, fully mixing until the materials are completely dissolved, transferring the materials into a constant pressure dropping funnel, slowly dropwise adding the materials into the three-neck flask at room temperature (the reaction is violently exothermic, controlling the dropwise speed to avoid local overheating), continuously reacting at room temperature for 30min after dropwise adding, heating to 70 ℃ to react until the content of isocyanate groups (-NCO) of the mixture reaches a theoretical value (measured by a di-n-butylamine hydrochloride method), cooling to obtain a partially-blocked prepolymer 2, drying and sealing and preserving the partially-blocked prepolymer; dibutyl tin dilaurate DBTDL, p-hydroxyanisole MEHQ and 2, 6-di-tert-butyl-4-methylphenol BHT are all conventional choices, have no influence on performance, and play roles of a catalyst and a polymerization inhibitor.
(c) And mixing the prepolymer 1 and the prepolymer 2, and heating to 80 ℃ to react for 3 hours to obtain the high-wear-resistance hydrophilic resin with the functionality of 10.
2. Preparation of an antifogging coating: (d) 10 parts of ethoxylation trimethylolpropane triacrylate (ETPTA) and 4 parts of photo initiator TPO are added into a high-speed dispersing machine charging barrel container, 60 parts of highly wear-resistant hydrophilic resin are sequentially added after stirring and high-speed dispersion and dissolution are started, 25 parts of hydrophobic resin is 6195-100 parts, and 1 part of leveling agent FS3100 is uniformly stirred, so that the anti-fog coating is obtained.
3. Preparation of a UV anti-fog coating: (e) preparation of UV anti-fog coating: and (3) rolling the antifogging coating prepared in the step (d) on a PMMA plate by using a roller coater, and then placing the PMMA plate on a conveyor type UV curing machine, and curing the PMMA plate by using 600mJ ultraviolet light to obtain the antifogging coating.
Example 3
1. Preparation of high wear-resistant hydrophilic resin:
(a) 17.35g (0.03 mol) of dipentaerythritol hexaacrylate and 9.46g (0.09 mol) of diethanolamine are added into a 100mL three-neck flask, stirring is started, and the temperature is raised to 65 ℃ for reaction for 2 hours to obtain a hydrophilically modified prepolymer 1;
(b) A250 mL three-necked flask was additionally charged with 40.01g (0.18 mol) of isophorone diisocyanate and 0.055g (0.05 wt%) of dibutyltin dilaurate and stirring was started; sequentially weighing 0.29g (0.262 wt%) of p-hydroxyanisole, 0.58g (0.525 wt%) of 2, 6-di-tert-butyl-4-methylphenol, 59.4g (0.09 mol) of nonylphenol polyoxyethylene ether (TX-10) and 11.71g (0.09 mol) of hydroxypropyl acrylate, fully mixing until the above materials are completely dissolved, transferring the materials into a constant pressure dropping funnel, slowly dropping the materials into the three-neck flask at room temperature (the reaction is violently exothermic, controlling the dropping speed to avoid local overheating), continuously reacting for 30min at room temperature after dropping, heating to 60 ℃ to react until the content of isocyanate groups (-NCO) of the mixture reaches a theoretical value (measured by a di-n-butylamine hydrochloride method), cooling to obtain a partially-blocked prepolymer 2, drying and sealing for storage; dibutyl tin dilaurate DBTDL, p-hydroxyanisole MEHQ and 2, 6-di-tert-butyl-4-methylphenol BHT are all conventional choices, have no influence on performance, and play roles of a catalyst and a polymerization inhibitor.
(c) And mixing the prepolymer 1 and the prepolymer 2, and heating to 70 ℃ to react for 3 hours to obtain the high-wear-resistance hydrophilic resin with the functionality of 6.
2. Preparation of an antifogging coating: (d) 20 parts of dipentaerythritol hexaacrylate (DPHA) and 4 parts of photo initiator TPO are added into a charging barrel container of a high-speed dispersing machine, 50 parts of high-wear-resistance hydrophilic resin and 25 parts of hydrophobic resin are sequentially added after stirring and high-speed dispersing and dissolving, and 1 part of leveling agent FSWET1010 is uniformly stirred, so that the anti-fog coating is obtained.
3. Preparation of a UV anti-fog coating: (e) preparation of UV anti-fog coating: and (3) dripping the anti-fog coating prepared in the step (d) on a PC board, and then placing the PC board on a conveyor belt type UV curing machine to obtain the anti-fog coating through 1000mJ ultraviolet light curing.
Example 4
1. Preparation of high wear-resistant hydrophilic resin:
(a) 39.63g (0.03 mol) of acryloyloxypropyl cage type polysilsesquioxane and 15.77g (0.15 mol) of diethanolamine are added into a 100mL three-neck flask, stirring is started, and the temperature is raised to 65 ℃ for 2 hours to obtain a hydrophilically modified prepolymer 1;
(b) A500 mL three-necked flask was additionally charged with 45.28g (0.26 mol) of Toluene Diisocyanate (TDI) and 0.1g (0.05 wt%) of dibutyltin dilaurate and stirring was started; sequentially weighing 0.54g (0.262 wt%) of p-hydroxyanisole, 1.08g (0.525 wt%) of 2, 6-di-tert-butyl-4-methylphenol and 150g (0.2 mol) of polyethylene glycol monomethyl ether 750 and 17.88g (0.06 mol) of pentaerythritol triacrylate (PETA), fully mixing until the materials are completely dissolved, transferring the materials into a constant-pressure dropping funnel, slowly dropping the materials into the three-neck flask at room temperature (the reaction is violently exothermic, the dropping speed is controlled to avoid local overheating), after the reaction is continued at room temperature for 30min, heating to 60 ℃ for reaction until the content of isocyanate groups (-NCO) of the mixture reaches a theoretical value (measured by a di-n-butylamine hydrochloride method), cooling to obtain a partially-blocked prepolymer 2, drying and sealing for storage; dibutyl tin dilaurate DBTDL, p-hydroxyanisole MEHQ and 2, 6-di-tert-butyl-4-methylphenol BHT are all conventional choices, have no influence on performance, and play roles of a catalyst and a polymerization inhibitor.
(c) And mixing the prepolymer 1 and the prepolymer 2, and heating to 70 ℃ to react for 3 hours to obtain the high-wear-resistance hydrophilic resin with the functionality of 9.
2. Preparation of an antifogging coating:
(d) 10 parts of trimethylolpropane triacrylate (TMPTA) and 4 parts of photo-initiator TPO are added into a high-speed dispersing machine charging barrel container, stirring is started, high-speed dispersing and dissolving are carried out, 60 parts of highly wear-resistant hydrophilic resin, 25 parts of hydrophobic resin Disman 242,1 parts of flatting agent FS3100 are sequentially added, and stirring is carried out uniformly, thus obtaining the anti-fog coating.
3. Preparation of a UV anti-fog coating: (e) preparation of UV anti-fog coating: spin-coating the antifog coating prepared in (d) on a glass plate, and then placing the glass plate on a conveyor-type UV curing machine to obtain the antifog coating through 600mJ ultraviolet light curing.
Example 5 Performance test
The performance test items and methods for the anti-fog coatings prepared in examples 1-4 are shown in the following table:
the performance test results of the anti-fog coatings prepared in examples 1-4 are shown in the following table:
in summary, the invention creatively utilizes the high-hardness monomer and diethanolamine according to the mole ratio of 1:1-1:8 to give a hydrophilically modified prepolymer 1, and then reacting the hydroxyl-containing mixture with a diisocyanate in a molar ratio of hydroxyl groups (-OH) to isocyanate (-NCO) of 1:1 to obtain a partially end-capped prepolymer 2, and finally, the prepolymer 1 and the prepolymer 2 are subjected to a molar ratio of 1:1-1:24, can generate a theoretical maximum 24-F prepolymer (F represents the functionality, 24-F represents 24 functionalities, the greater the functionality is, the higher the hardness is), greatly improves the hardness of a coating film, is dispersed and mixed with hydrophobic resin, reactive diluent, photoinitiator and flatting agent, is very suitable for processes such as knife coating, drop coating, roller coating, curtain coating, spin coating and the like, can be directly cured by UV after coating is finished, can form a film on various types of substrates, can realize quick curing under ultraviolet irradiation, has high bonding strength with the substrates, and has good transparency, wear resistance and chemical resistance and excellent anti-fog performance.
Claims (9)
1. A highly abrasion resistant hydrophilic resin, characterized in that: firstly, a high-hardness monomer and diethanolamine are mixed according to a mole ratio of 1:1-1:8 to give a hydrophilically modified prepolymer 1, and then reacting the hydroxyl-containing mixture with a diisocyanate in a molar ratio of hydroxyl groups (-OH) to isocyanate (-NCO) of 1:1 to obtain a partially end-capped prepolymer 2, and finally, the prepolymer 1 and the prepolymer 2 are subjected to a molar ratio of 1:1-1:24, mixing and reacting to obtain the high-wear-resistance hydrophilic resin; the high-hardness monomer comprises at least one of isocyanurate triacrylate, dipentaerythritol hexaacrylate, acryloxypropyl cage-shaped polysilsesquioxane, octaepoxycyclohexyl ethyl cage-shaped polysilsesquioxane and glycidol ether oxypropyl cage-shaped polysilsesquioxane; the mixture containing hydroxyl is formed by mixing a hydrophilic surfactant and a hydroxyl acrylic ester monomer according to the proportion of 1:1-1:4; the hydrophilic surfactant is nonionic monohydroxy polymer with polyoxyethylene segments, and the monohydroxy polymer comprises at least one of polyethylene glycol monomethyl ether, nonylphenol polyoxyethylene ether and octylphenol polyoxyethylene ether with molecular weight of 400-1000.
2. The highly abrasion-resistant hydrophilic resin according to claim 1, wherein: the hydroxy acrylate monomer comprises at least one of hydroxyethyl methacrylate (HEMA), hydroxyethyl acrylate (HEA), hydroxypropyl acrylate (HPA), 4-hydroxy butyl acrylate (4 HBA) and pentaerythritol triacrylate (PETA).
3. The highly abrasion-resistant hydrophilic resin according to claim 1, wherein: the diisocyanate comprises at least one of isophorone diisocyanate (IPDI), toluene Diisocyanate (TDI), hexamethylene Diisocyanate (HDI), dicyclohexylmethane diisocyanate (HMDI) and modified diphenylmethane diisocyanate (liquefied MDI).
4. The high-wear-resistance solvent-free anti-fog coating is characterized by being prepared from the following components in parts by mass: 20-50 parts of hydrophilic resin, 30-70 parts of hydrophobic resin, 5-20 parts of reactive diluent monomer, 3-5 parts of photoinitiator and 0.5-1.0 part of flatting agent; the hydrophilic resin is the highly abrasion-resistant hydrophilic resin according to any one of claims 1 to 3; the hydrophobic resin is polyurethane acrylic ester with at least six functionalities, and comprises at least one of Cyanteb 1290, dissman 2421, dissman 242, changxing 6145-100 and Changxing 6195-100; the reactive diluent monomer comprises at least one of trimethylolpropane triacrylate (TMPTA), ethoxylated trimethylolpropane triacrylate (ETPTA), pentaerythritol triacrylate (PETA), dipentaerythritol hexaacrylate (DPHA), acryloylmorpholine (ACMO), polyethylene glycol 400 diacrylate (PEG 400 DA), polyethylene glycol 600 diacrylate (PEG 600 DA), polyethylene glycol 1000 diacrylate (PEG 1000 DA).
5. The preparation method of the high-wear-resistance solvent-free anti-fog paint is characterized by comprising the following steps of: the antifogging coating is obtained by dispersing and mixing 20-50 parts of the high wear-resistant hydrophilic resin according to any one of claims 1-3, 30-70 parts of hydrophobic resin, 5-20 parts of reactive diluent monomer, 3-5 parts of photoinitiator and 0.5-1.0 part of flatting agent.
6. The method for preparing the high-abrasion-resistance solvent-free anti-fog paint according to claim 5, wherein,
and adding the reactive diluent monomer into a container, sequentially adding the photoinitiator, the hydrophilic resin, the hydrophobic resin and the leveling agent in a stirring state, and stirring to obtain the high-wear-resistance solvent-free anti-fog coating.
7. Use of the high abrasion solvent-free anti-fog coating according to claim 4 for the preparation of an anti-fog coating.
8. An anti-fog coating is characterized by being prepared by the following steps: the high abrasion resistant solvent free anti-fog coating of claim 4 applied to a substrate and cured to form the anti-fog coating.
9. The anti-fog coating of claim 8, wherein the substrate comprises glass, plastic, metal.
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