Antistatic ink and preparation method thereof, vehicle window glass and vehicle

Abstract

The invention provides antistatic ink and a preparation method thereof, vehicle window glass and a vehicle. The antistatic printing ink provided by the invention is prepared from the following components in percentage by mass: 89.64% to 94.81% of acrylate printing ink, 4.99% to 9.96% of a silicon hydroxyl-containing auxiliary agent and 0.2% to 0.4% of an antistatic agent. An ink layer formed by the anti-static ink has high surface energy and a good anti-static effect, so that the ink layer and an adhesive tape have better bonding force.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile glass, in particular to an antistatic ink, a preparation method thereof, a vehicle window glass and a vehicle. BACKGROUND

[0002] In order to improve the appearance effect of the vehicle window glass and protect the adhesive tape between the vehicle window glass and the vehicle body, an ink layer is usually arranged on the outer periphery of the vehicle window glass. In the related art, the adhesive force between the ink layer and the adhesive tape of the vehicle body is insufficient, which easily causes the vehicle window glass to be not firmly bonded with the vehicle body. In the process of rapid driving of the vehicle, the vehicle window glass may fly out, which exists a safety hazard, or the bonding part between the vehicle window glass and the vehicle body appears rain leakage in rainy days. SUMMARY

[0003] The embodiments of the present application provide an antistatic ink, which has a higher surface energy and a better antistatic effect, so that the ink layer has a better adhesive force with the adhesive tape.

[0004] In a first aspect, the embodiments of the present application provide an antistatic ink, which includes 89.64% to 94.81% acrylate ink, 4.99% to 9.96% silicon-hydroxyl-containing auxiliary agent and 0.2% to 0.4% antistatic agent in terms of mass fraction.

[0005] Further, the acrylate ink includes 5% to 15% acrylate resin, 75% to 85% organic-inorganic composite pigment and the balance solvent in terms of mass fraction.

[0006] Further, the organic-inorganic composite pigment includes 20% to 30% 2,2'-dimethyl-4,4'-diaminobiphenyl, 5% to 10% titanium white, 60% to 70% copper chromium black, 1% to 3% silane oxide and 1% to 3% ethanol in terms of mass fraction.

[0007] Further, the acrylate resin is polyglycidyl methacrylate; and the solvent is terpineol.

[0008] Further, the silicon-hydroxyl-containing auxiliary agent includes silica sol.

[0009] Further, the antistatic agent includes at least one of zinc aluminum oxide, tin oxide and zinc oxide.

[0010] Further, the acrylate ink further includes 0.05% to 0.5% dispersant in terms of mass fraction.

[0011] Further, the particle size of the antistatic agent ranges from 20 nm to 250 nm.

[0012] Further, the antistatic agent is conductive zinc aluminum oxide, the conductive zinc aluminum oxide is ZnO doped with Al2O3, and the mass fraction of Al2O3 in the conductive zinc aluminum oxide is 2% to 5%.

[0013] In a second aspect, the embodiments of the present application provide a preparation method of the antistatic ink, the preparation method comprises:

[0014] providing an acrylate ink; and

[0015] mixing the acrylate ink with the silicon-hydroxyl-containing auxiliary agent and the antistatic agent to obtain the antistatic ink, wherein the antistatic ink comprises 89.64% to 94.81% acrylate ink, 4.99% to 9.96% silicon-hydroxyl-containing auxiliary agent, and 0.2% to 0.4% antistatic agent in terms of mass fraction.

[0016] Further, the providing the acrylate ink comprises:

[0017] providing an acrylate resin, an organic-inorganic composite pigment, a dispersant, and a solvent;

[0018] dissolving the acrylate resin in part of the solvent to form a resin solution;

[0019] mixing the organic-inorganic composite pigment, the dispersant, and the remaining solvent to obtain a pigment slurry; and

[0020] adding the pigment slurry to the resin solution, and sequentially stirring and ball milling to obtain the acrylate ink.

[0021] In a third aspect, the embodiments of the present application further provide a vehicle window glass, the vehicle window glass comprises:

[0022] a glass substrate; and

[0023] an ink layer, the ink layer is arranged on a surface of the glass substrate, and the ink layer is formed by the antistatic ink of the first aspect.

[0024] Further, the surface energy of the ink layer after being placed at a temperature of 25°C and a humidity of 60% for 30 days is greater than or equal to 50 mN / m.

[0025] Further, the surface resistivity of the ink layer is less than or equal to 10 6 Ω·cm.

[0026] Further, the glass substrate is a single glass sheet, or the glass substrate comprises a first glass sheet, an intermediate adhesive layer, and a second glass sheet arranged in sequence, and the ink layer is arranged on a surface of the second glass sheet away from the first glass sheet.

[0027] Further, the thickness of the ink layer is in the range of 8 μm to 10 μm.

[0028] Further, the ink layer is formed by an antistatic ink after curing at 400 °C to 600 °C.

[0029] In a fourth aspect, the embodiments of the present application further provide a vehicle, comprising:

[0030] a vehicle body;

[0031] The vehicle window glass according to the third aspect of the present application is installed on the vehicle body, and the ink layer is arranged around the outer periphery of the glass substrate.

[0032] Further, the vehicle further comprises:

[0033] a rubber strip arranged between the vehicle body and the ink layer, for bonding the vehicle body and the vehicle window glass.

[0034] Further, the ink layer reaches CF level according to the small knife test standard.

[0035] It has been found that the adhesion between the ink layer and the adhesive strip of the vehicle body is related to the surface energy of the ink layer, and when the surface energy of the ink layer is large, the ink layer and the adhesive strip have good adhesion. The antistatic ink of the embodiment of the present application comprises a silicon hydroxyl-containing additive, the silicon hydroxyl-containing additive contains a large amount of silicon hydroxyl, and the polar orientation of the silicon hydroxyl can increase the surface energy of the ink layer formed by curing the antistatic ink, weaken the electrostatic effect between the ink layer and dust, and keep the surface energy of the ink layer at a high level at all times; in addition, when the antistatic ink is applied to the vehicle window glass, the silicon hydroxyl in the antistatic ink can realize rapid wetting with the activator, can cross-link with the silicon hydroxyl in the activator to form a Si-O-Si bond; and the mercapto group and the amino group in the activator can chemically bond with the -NCO- group in the adhesive strip to generate a thiourethane bond and a urea group, thereby effectively improving the adhesion between the ink layer and the adhesive strip. Furthermore, the antistatic ink of the present application also comprises an antistatic agent, which can react with the silicon hydroxyl-containing additive to form an inorganic-inorganic hybrid network structure of Si-O-Al and Si-O-Zn, which can ensure that the ink layer maintains stable antistatic performance and high surface energy stability after high temperature of 600℃, so that the ink layer has high surface energy, good antistatic property, good high temperature resistance, and good acid and alkali resistance. Furthermore, the antistatic agent can make the ink layer have a low surface resistivity, can discharge net charge, and in a high temperature environment of 400℃ to 600℃, the antistatic agent will grow through grain and reduce defects to form a more dense crystal structure, thereby maintaining a stable conductive network, so that the ink layer has good antistatic property and is less likely to adsorb dust, and has long-term high surface energy. Therefore, when the antistatic ink of the present application is applied to the vehicle window glass, the ink layer formed thereby is less likely to adsorb dust, can maintain high surface energy for a longer period of time and high antistatic property for a longer period of time, so that even after the vehicle window glass is prepared and placed for a period of time (such as long-distance transportation, storage, etc.) before being assembled on the vehicle, the ink layer of the vehicle window glass and the adhesive strip of the vehicle body also have good adhesion. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0037] Figure 1 is a flowchart of a preparation method of the antistatic ink of an embodiment of the present application.

[0038] Figure 2 is a flowchart of a preparation method of the acrylic ester ink of an embodiment of the present application.

[0039] Figure 3 is a structural schematic diagram of a vehicle window glass according to an embodiment of the present application.

[0040] Figure 4 is a structural schematic diagram of a vehicle window glass according to an embodiment of the present application.

[0041] Figure 5 is a photo of water film wettability test of the ink layer of Example 1.

[0042] Figure 6 is a photo of water film wettability test of the ink layer of Comparative Example 1.

[0043] Figure 7 is a photo of activator wettability test of the ink layer of Example 1.

[0044] Figure 8 is a photo of activator wettability test of the ink layer of Comparative Example 1.

[0045] Figure 9 is a structural schematic diagram of a vehicle according to an embodiment of the present application.

[0046] BRIEF DESCRIPTION OF DRAWINGS

[0047] 200 - vehicle window glass, 220 - ink layer, 300 - glass substrate, 310 - first glass sheet, 320 - intermediate adhesive layer, 330 - second glass sheet, 400 - vehicle, 410 - vehicle body, 420 - rubber strip. DETAILED DESCRIPTION

[0048] In order to enable persons skilled in the art to better understand the schemes of the present application, the technical schemes in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor fall within the scope of protection of the present application.

[0049] The terms "first", "second", and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0050] The technical solutions in the embodiments of the present application will be described below with reference to the drawings.

[0051] It should be noted that, in the embodiments of the present application, the same reference signs represent the same components for the purpose of illustration, and for the purpose of brevity, detailed descriptions of the same components are omitted in different embodiments.

[0052] In order to improve the appearance effect of the vehicle window glass and protect the adhesive strip between the vehicle window glass and the vehicle body, an ink layer is usually arranged on the outer periphery of the vehicle window glass. In the related art, the adhesive force between the ink layer and the adhesive strip of the vehicle body is insufficient, which easily causes the vehicle window glass to be not firmly bonded with the vehicle body, and the vehicle window glass may fly out during rapid driving of the vehicle, which exists a safety hazard, or the bonding part of the vehicle window glass and the vehicle body leaks rain in rainy days and the like.

[0053] In view of this, the embodiments of the present application provide an antistatic ink and a preparation method thereof, a vehicle window glass and a vehicle.

[0054] The embodiments of the present application provide an antistatic ink, which comprises 89.64% to 94.81% acrylate ink, 4.99% to 9.96% hydrophilic agent containing silicon hydroxyl (Si-OH), and 0.2% to 0.4% antistatic agent by mass fraction.

[0055] It should be noted that the hydrophilic agent containing silicon hydroxyl is a hydrophilic agent.

[0056] It should be noted that the antistatic ink of the present application forms an ink layer after curing.

[0057] The antistatic ink of the present application can be applied to the vehicle window glass of a vehicle, and is used to form a shielding ink layer of the vehicle window glass to protect the adhesive strip (such as a polyurethane adhesive strip, referred to as PU adhesive strip) between the vehicle window glass and the vehicle body, and to make the vehicle window glass have a better appearance effect. The vehicle window glass can be at least one of a front windshield, a sunroof glass, and a rear windshield.

[0058] It should be noted that when the antistatic ink is applied to the vehicle window glass, the ink layer formed by the antistatic ink is arranged on the surface of the glass substrate facing the vehicle body and around the outer periphery of the glass substrate, the adhesive strip is arranged between the vehicle window glass and the vehicle body, and corresponds to the ink layer. In addition, an activator layer is usually arranged between the ink layer and the adhesive strip, which is used to improve the bonding performance between the adhesive strip and the ink layer. That is, before the vehicle window glass is assembled on the vehicle body, the antistatic ink is coated on the glass substrate, and after curing, the ink layer is formed, then a layer of activator is coated on the ink layer to form an activator layer, thereby obtaining the vehicle window glass; then the vehicle window glass is adhered to the vehicle body through the adhesive strip. Alternatively, the activator can be, but is not limited to, a silane coupling agent, that is, the activator layer can be a silane coupling agent layer. Alternatively, the activator comprises at least one of hydroxyl, mercapto, amino and other hydrophilic groups.

[0059] It should be noted that the antistatic ink of the present application can be cured at 400-600°C (for example, it can be, but is not limited to, 400°C, 430°C, 450°C, 480°C, 500°C, 530°C, 550°C, 580°C, 600°C, etc.) to form an ink layer.

[0060] It is found that the adhesion between the ink layer and the adhesive strip of the vehicle body is related to the surface energy of the ink layer, and when the surface energy of the ink layer is large, the ink layer and the adhesive strip have good adhesion. The antistatic ink of the embodiment of the application comprises a silicon-hydroxyl-containing additive, the silicon-hydroxyl-containing additive contains a large amount of silicon-hydroxyl, the polar orientation of the silicon-hydroxyl can increase the surface energy of the ink layer formed by curing the antistatic ink, weaken the electrostatic effect between the ink layer and dust, and keep the surface energy of the ink layer at a high level at all times; in addition, when the antistatic ink is applied to the vehicle window glass, the silicon-hydroxyl in the antistatic ink can realize rapid wetting with the activator, can cross-link with the silicon-hydroxyl in the activator to form a Si-O-Si bond; and the mercapto group and the amino group in the activator can chemically bond with the -NCO- group in the adhesive strip to generate a thiourethane bond and a urea group, thereby effectively improving the adhesion between the ink layer and the adhesive strip. Furthermore, the antistatic ink of the application further comprises an antistatic agent, the antistatic agent can react with the silicon-hydroxyl-containing additive to form an inorganic-inorganic hybrid network structure of Si-O-Al and Si-O-Zn, which can ensure that the ink layer maintains the stability of the antistatic property and high surface energy after high temperature of 600 DEG C, so that the ink layer has high surface energy, good antistatic property, good high temperature resistance, and good acid and alkali resistance. Furthermore, the antistatic agent can make the ink layer have low surface resistivity, can discharge net charge, and in a high temperature environment of 400 DEG C to 600 DEG C, the antistatic agent will form a more dense crystal structure through grain growth and defect reduction, thereby maintaining a stable conductive network, so that the ink layer has good antistatic property and is less likely to adsorb dust, and has long-term high surface energy. Thus, when the antistatic ink of the application is applied to the vehicle window glass, the ink layer formed thereby is less likely to adsorb dust, can maintain high surface energy for a longer time and high antistatic property for a longer time, so that even after the vehicle window glass is prepared and placed for a period of time (such as long-distance transportation, storage, etc.) before being assembled on the vehicle, the ink layer of the vehicle window glass and the adhesive strip of the vehicle body also have good adhesion.

[0061] Specifically, the mass fraction of the silicon-containing hydroxyl-containing auxiliary agent in the antistatic ink can be, but is not limited to, 4.99%, 5.0%, 5.3%, 5.5%, 5.8%, 6.0%, 6.3%, 6.5%, 6.8%, 7.0%, 7.3%, 7.5%, 7.8%, 8.0%, 8.3%, 8.5%, 8.8%, 9.0%, 9.3%, 9.5%, 9.8%, 9.96%, etc. If the mass fraction of the silicon-containing hydroxyl-containing auxiliary agent in the antistatic ink is too low, the reduction of the surface energy of the ink layer formed by the antistatic ink is limited, the improvement of the ink layer in adsorbing dust is not obvious, and the adhesion between the ink layer and the rubber strip is reduced. If the mass fraction of the silicon-containing hydroxyl-containing auxiliary agent in the antistatic ink is too high, the antistatic ink is too thin and is not easy to print; in addition, the hiding property of the antistatic ink is reduced, and when the ink layer formed by the antistatic ink is applied to a vehicle, visible light can easily penetrate the ink layer, the rubber strip is easily aged, and the protection of the ink layer to the rubber strip is reduced.

[0062] Specifically, the mass fraction of the antistatic agent in the antistatic ink can be, but is not limited to, 0.2%, 0.22%, 0.24%, 0.26%, 0.28%, 0.3%, 0.32%, 0.34%, 0.36%, 0.38%, 0.4%, etc. If the mass fraction of the antistatic agent in the antistatic ink is too low, the antistatic effect of the ink layer formed by the antistatic ink is reduced, the ink layer is easy to adsorb dust, the surface energy of the ink layer is reduced, and thus the adhesion between the ink layer and the rubber strip is reduced. If the mass fraction of the antistatic agent in the antistatic ink is too high, the antistatic ink is too thick and is not easy to print uniformly, the appearance effect of the ink layer is affected, the surface roughness of the ink layer is increased, the contact area between the ink layer and the rubber strip is reduced, and thus the adhesion between the ink layer and the rubber strip is reduced.

[0063] In some embodiments, the acrylate ink includes, by mass fraction: 5% to 15% acrylate resin, 75% to 85% organic-inorganic composite pigment, and the balance solvent.

[0064] It should be noted that after the antistatic ink of the present application is cured at high temperature (400°C to 600°C), the acrylate resin is completely decomposed to generate CO2, H2O, etc., and only inorganic matter is left in the ink layer, i.e., in the components of the final ink layer, the acrylate resin is not included.

[0065] Specifically, the mass fraction of the acrylate resin in the acrylate ink can be, but is not limited to, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, etc. The addition of the acrylate resin in the antistatic ink can improve the film-forming property of the antistatic ink, so that the antistatic ink is easier to print. If the mass fraction of the acrylate resin in the acrylate ink is too low, the antistatic ink is not easy to form a film, which is not conducive to the printing of the antistatic ink. If the mass fraction of the acrylate resin in the acrylate ink is too high, the viscosity of the antistatic ink is too high, which is also not conducive to the printing of the antistatic ink; in addition, after high-temperature curing of the antistatic ink, too much gas generated by decomposition of the acrylate resin increases the pores of the formed ink layer, reduces the adhesion of the ink layer, and reduces the appearance effect of the ink layer.

[0066] Specifically, the mass fraction of the organic-inorganic composite pigment in the acrylate ink can be, but is not limited to, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, etc. The organic-inorganic composite pigment is used to change and adjust the color of the antistatic ink, increase the crystallization during curing of the antistatic ink, improve the anti-sticking property of the ink layer, and avoid the antistatic ink from being adhered to the stainless steel hot bending mold during the hot bending forming process when the antistatic ink is applied to the vehicle window glass, thereby affecting the appearance effect of the formed ink layer. Therefore, if the mass fraction of the organic-inorganic composite pigment in the acrylate ink is too low, the crystallization during curing of the antistatic ink is too little, and the anti-sticking property is not good. If the mass fraction of the organic-inorganic composite pigment in the acrylate ink is too high, the crystallization during curing of the antistatic ink is too much, so that irregular crystal clusters are formed inside the ink layer, resulting in uneven hiding power of the ink layer, with strong hiding power in some areas and weak hiding power in other areas; in addition, too much crystallization also causes the crystal particles to protrude from the surface of the ink layer, which are easily worn and fallen off during the rubbing process, thereby reducing the wear resistance of the ink layer.

[0067] Specifically, the mass fraction of the solvent in the acrylate ink can be, but is not limited to, 5%, 8%, 10%, 13%, 15%, 18%, 20%, 23%, 25%, etc.

[0068] In some embodiments, the organic-inorganic composite pigment includes, by mass fraction, 20% to 30% 2,2'-dimethyl-4,4'-diaminobiphenyl, 5% to 10% titanium dioxide, 60% to 70% copper chromium black, 1% to 3% silane oxide, and 1% to 3% ethanol.

[0069] Specifically, the mass fraction of 2,2'-dimethyl-4,4'-diaminobiphenyl in the organic-inorganic composite pigment can be, but is not limited to, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, etc. 2,2'-dimethyl-4,4'-diaminobiphenyl is used to increase the crystallization of the antistatic ink. If the mass fraction of 2,2'-dimethyl-4,4'-diaminobiphenyl in the organic-inorganic composite pigment is too low, the crystallization of the antistatic ink during curing is too little, and the anti-adhesion performance is not good. If the mass fraction of 2,2'-dimethyl-4,4'-diaminobiphenyl in the organic-inorganic composite pigment is too high, the crystallization of the antistatic ink during curing is too much, irregular crystal clusters are formed inside the ink layer, the hiding power of the ink layer is not uniform, the hiding power in some areas is strong, and the hiding power in other areas is weak. In addition, too much crystallization will also cause the crystal particles to protrude from the surface of the ink layer, which is easy to wear and fall off during the rubbing process, and the wear resistance of the ink layer is poor.

[0070] Specifically, the mass fraction of titanium dioxide in the organic-inorganic composite pigment can be, but is not limited to, 5%, 6%, 7%, 8%, 9%, 10%, etc. Titanium dioxide is used to increase the crystallization of the antistatic ink. If the mass fraction of titanium dioxide in the organic-inorganic composite pigment is too low, the crystallization of the antistatic ink during curing is too little, and the anti-adhesion performance is not good. If the mass fraction of titanium dioxide in the organic-inorganic composite pigment is too high, the crystallization of the antistatic ink during curing is too much, irregular crystal clusters are formed inside the ink layer, the hiding power of the ink layer is not uniform, the hiding power in some areas is strong, and the hiding power in other areas is weak. In addition, too much crystallization will also cause the crystal particles to protrude from the surface of the ink layer, which is easy to wear and fall off during the rubbing process, and the wear resistance of the ink layer is poor.

[0071] Specifically, the mass fraction of copper chromium black in the organic-inorganic composite pigment can be, but is not limited to, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, etc. The copper chromium black in the organic-inorganic composite pigment is used to adjust the color of the antistatic ink. If the copper chromium black in the organic-inorganic composite pigment is too little, the color of the ink layer formed is too light. If the copper chromium black in the organic-inorganic composite pigment is too much, the content of other components is too little, which affects the performance of the ink layer.

[0072] Specifically, the mass fraction of the silane oxide in the organic-inorganic composite pigment can be, but is not limited to, 1%, 1.2%, 1.4%, 1.6%, 1.8%, 2%, 2.2%, 2.4%, 2.6%, 2.8%, 3%, etc. The silane oxide can improve the dispersibility of copper chrome black in the organic-inorganic composite pigment and the antistatic ink, and prevent the copper chrome black from agglomerating. If the mass fraction of the silane oxide in the organic-inorganic composite pigment is too small, the improvement of the dispersibility of the copper chrome black is limited.

[0073] Specifically, the mass fraction of the ethanol in the organic-inorganic composite pigment can be, but is not limited to, 1%, 1.2%, 1.4%, 1.6%, 1.8%, 2%, 2.2%, 2.4%, 2.6%, 2.8%, 3%, etc.

[0074] In some embodiments, the acrylate ink further includes 0.05% to 0.5% of a dispersant by mass fraction. Specifically, the mass fraction of the dispersant in the acrylate ink is 0.05%, 0.08%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, etc. The dispersant can improve the dispersibility of solid particles (such as titanium dioxide, copper chrome black, etc.) in the acrylate ink, prevent the solid particles from agglomerating, and make the solid particles uniformly and stably dispersed in the antistatic ink, thereby improving the performance and printing quality of the antistatic ink.

[0075] In an example, the dispersant can be, but is not limited to, BYK-163 dispersant.

[0076] In some embodiments, the acrylate resin is polyglycidyl methacrylate (i.e., polymethyl-2,3-epoxypropyl acrylate, referred to as PGMA, also referred to as glycidyl methacrylate resin); and the solvent is terpineol.

[0077] In this embodiment, polyglycidyl methacrylate is used as the acrylate resin. The polyglycidyl methacrylate has an epoxy group, which can form a multi-dimensional crosslinking network through the epoxy group, significantly improve the mechanical strength and chemical resistance of the ink layer obtained by the antistatic ink, and also form a chemical bond with the substrate, effectively improve the adhesion, and at the same time, the double bond crosslinking network formed by it can improve the anti-UV aging performance of the ink layer. Terpineol can be dissolved in ethanol, diethyl ether, esters and many other organic solvents, and has good solubility for resins, oils, dyes and other substances, and is especially suitable for use as a diluent or dispersant in products such as coatings, inks, and cleaning agents. In the coating industry, it can improve the leveling property, adhesion and drying speed, and improve the uniformity and protection effect of the coating.

[0078] In some embodiments, the silicon-hydroxyl containing auxiliary agent includes a silica sol. The silica sol has more silicon-hydroxyl groups, and the polar orientation of the silicon-hydroxyl groups can increase the surface energy of the ink layer formed by curing the antistatic ink, weaken the electrostatic effect between the ink layer and dust, and keep the surface energy of the ink layer at a high level; in addition, when the antistatic ink is applied to the vehicle window glass, the silicon-hydroxyl groups in the silica sol can achieve rapid wetting with the activator, can cross-link with the silicon-hydroxyl groups in the activator to form Si-O-Si bonds; and moreover, the mercapto groups and amino groups in the activator can chemically bond with the -NCO- groups in the adhesive strip to generate thiourethane bonds and urea groups, thereby effectively improving the adhesion between the ink layer and the adhesive strip.

[0079] Optionally, the silicon-hydroxyl containing auxiliary agent can be, but is not limited to, at least one of ZCP0024D (photovoltaic glass self-cleaning dust-proof anti-fouling wear-resistant nano coating, Guangdong Hisense Meikai New Material Technology Co., Ltd.), YCP0018 (super-hard wear-resistant scratch-resistant water-based nano coating, Guangdong Hisense Meikai New Material Technology Co., Ltd.), 06A (super-hydrophilic nano easy-to-clean liquid, Guangdong Red Spider Nanometer New Material Co., Ltd.), JN-SS086 (easy-to-clean nano hydrophilic coating, Guangdong Zhongke Jingna New Material Technology Co., Ltd.), and the like.

[0080] In some embodiments, the antistatic agent includes at least one of zinc aluminum oxide (abbreviated as AZO), tin oxide, and zinc oxide. These antistatic agents can better improve the antistatic property of the antistatic ink, reduce the surface resistivity of the ink layer formed by the antistatic ink, better discharge net charges, reduce the probability of dust adsorption by the ink layer, and keep the surface energy of the ink layer at a high level, so that the ink layer still has a high surface energy and good adhesion after being prevented from dust for a long time in a dusty environment.

[0081] Optionally, the antistatic agent can be, but is not limited to, at least one of KND-KX200 (conductive zinc aluminum, particle size 150 nm to 250 nm, Changzhou Kondrata New Material Technology Co., Ltd.), ZT-AZO (nano AZO, particle size 30 nm to 50 nm, Zhiti Nanometer), Brofos-AZO (nano AZO, particle size 20 nm to 30 nm, Bohua Nanometer Technology), and the like.

[0082] Optionally, the particle size of the antistatic agent ranges from 20 nm to 250 nm. Specifically, the particle size of the antistatic agent can be, but is not limited to, 20 nm, 50 nm, 80 nm, 100 nm, 130 nm, 150 nm, 180 nm, 200 nm, 230 nm, 250 nm, etc. If the particle size of the antistatic agent is too small, the cost of the antistatic ink is increased; if the particle size of the antistatic agent is too large, the roughness of the ink layer formed by the antistatic ink is increased, and the appearance effect of the ink layer and the bonding area with the adhesive tape are reduced.

[0083] In an example, the antistatic agent is conductive aluminum zinc oxide (particle size: 50 nm to 250 nm) with a blue-gray powder appearance, the conductive aluminum zinc oxide is ZnO doped with Al2O3, the mass fraction of Al2O3 in the conductive aluminum zinc oxide ranges from 2% to 5% (for example, can be, but is not limited to, 2%, 3%, 4%, 5%, etc.), the static charge is derived through the low surface resistivity (≤10 6 Ω·cm) of the ink layer, and in a high-temperature environment of 600℃, the aluminum zinc oxide (AZO) forms a more compact crystal structure through grain growth and defect reduction, thereby maintaining a stable conductive network.

[0084] Please refer to Figure 1 The application also provides a preparation method of the antistatic ink, which comprises the following steps:

[0085] S101, providing an acrylate ink; and

[0086] Please refer to Figure 2 Optionally, the step of providing the acrylate ink comprises the following steps:

[0087] S1011, providing an acrylate resin, an organic-inorganic composite pigment, a dispersant, and a solvent;

[0088] S1012, dissolving the acrylate resin in part of the solvent to form a resin solution;

[0089] Optionally, the acrylate resin is mixed with part of the solvent, and is stirred at a temperature ranging from 70℃ to 90℃ (for example, 70℃, 75℃, 80℃, 85℃, 90℃, etc.) for 20 min to 60 min (for example, 20 min, 30 min, 40 min, 50 min, 60 min, etc.) to completely dissolve the acrylate resin and form the resin solution.

[0090] S1013, mixing the organic-inorganic composite pigment, the dispersant, and the remaining solvent to obtain a pigment slurry; and

[0091] Optionally, the organic-inorganic composite pigment is pre-mixed with the remaining solvent, and then the dispersant is added, and the mixture is stirred slowly (i.e., at a low speed) for 10-20 minutes (e.g., 10 minutes, 15 minutes, 20 minutes, etc.), to obtain a pigment slurry.

[0092] S1014, the pigment slurry is added to the resin solution, and stirring and ball milling are sequentially performed, to obtain an acrylate ink.

[0093] Optionally, the pigment slurry is added to the resin solution, and high-speed stirring is performed at a stirring speed of 1000-1400 rpm (e.g., 1000 rpm, 1100 rpm, 1200 rpm, 1300 rpm, 1400 rpm, etc.) for 20-60 minutes (e.g., 20 minutes, 30 minutes, 40 minutes, 50 minutes, 60 minutes, etc.) to form a preliminary dispersion system; and then a ball mill is used to grind the mixture at a speed of 2000-4000 rpm (e.g., 3000 rpm, 2500 rpm, 3000 rpm, 3500 rpm, 4000 rpm, etc.) for 2-4 hours (e.g., 2 hours, 3 hours, 4 hours, etc.) to a pigment fineness of ≤30 μm, to obtain an acrylate ink.

[0094] S102, the acrylate ink is mixed with a hydroxyl-containing silicon-containing auxiliary agent and an antistatic agent, to obtain an antistatic ink.

[0095] Optionally, the acrylate ink is weighed and poured into a beaker, and a glass rod is used to stir the acrylate ink for 3-10 minutes to fully stir and mix the acrylate ink; then the hydrophilic auxiliary agent and the antistatic agent are weighed and uniformly mixed and stirred for 20-60 minutes, and then added to the acrylate ink and placed in an electric mixer, and the mixture is continuously stirred at a certain speed for 1-3 hours, to obtain an antistatic ink.

[0096] For other aspects of the antistatic ink, please refer to the descriptions of the corresponding parts of the above examples, which will not be repeated here.

[0097] The antistatic ink prepared by the mixing method of the present example can make the dispersion of each component more uniform, and the solid particles (e.g., titanium dioxide, copper chromium black, antistatic agent, etc.) in the antistatic ink are less likely to agglomerate, and can be more uniformly dispersed.

[0098] Please refer to Figure 3 The present application also provides a vehicle window glass 200, which comprises a glass substrate 300 and an ink layer 220, wherein the ink layer 220 is arranged on the surface of the glass substrate 300, and the ink layer 220 is formed by the antistatic ink of the present application.

[0099] For further details regarding other aspects of the antistatic ink, please refer to the descriptions of the corresponding parts of the above examples, which will not be repeated here.

[0100] It can be understood that the glass substrate 300 is laminated with the ink layer 220,

[0101] Optionally, the ink layer 220 is arranged around the outer periphery of the glass substrate 300. It can be understood that the ink layer 220 does not completely cover the glass substrate 300, but is only arranged on the outer periphery of the glass substrate 300, i.e. the middle part of the glass substrate 300 is not provided with the ink layer 220.

[0102] It should be noted that the ink layer 220 is formed by curing the antistatic ink at 400-600°C.

[0103] The vehicle window glass 200 of the present application comprises a glass substrate 300 and an ink layer 220 formed by curing an antistatic ink. The antistatic ink comprises a silicon-hydroxyl-containing additive containing a large amount of silicon-hydroxyl groups. The polar orientation of the silicon-hydroxyl groups can increase the surface energy of the ink layer 220 formed by curing the antistatic ink, weaken the electrostatic interaction between the ink layer 220 and dust, and keep the surface energy of the ink layer 220 at a high level. In addition, when the antistatic ink is applied to the vehicle window glass 200, the silicon-hydroxyl groups in the antistatic ink can quickly wet the activator, cross-link with the silicon-hydroxyl groups in the activator to form Si-O-Si bonds, and the mercapto groups and amino groups in the activator can chemically bond with the -NCO- groups in the adhesive tape to form thiourethane bonds and urea groups, thereby effectively improving the adhesion between the ink layer 220 and the adhesive tape. Furthermore, the antistatic ink of the present application further comprises an antistatic agent, which can react with the silicon-hydroxyl-containing additive to form an inorganic-inorganic hybrid network structure of Si-O-Al and Si-O-Zn, which can ensure that the ink layer 220 maintains stable antistatic properties and high surface energy after high-temperature treatment at 600°C, thereby making the ink layer 220 have high surface energy, good antistatic properties, good high-temperature resistance, and good acid and alkali resistance. Furthermore, the antistatic agent can make the ink layer 220 have a low surface resistivity, can discharge net charges, and in a high-temperature environment of 400°C to 600°C, the antistatic agent will form a more dense crystal structure through grain growth and defect reduction, thereby maintaining a stable conductive network, making the ink layer 220 have good antistatic properties and be less likely to adsorb dust, and have long-term high surface energy. Therefore, when the antistatic ink of the present application is applied to the vehicle window glass 200, the ink layer 220 formed thereby is less likely to adsorb dust, can maintain high surface energy for a longer period of time and high antistatic properties for a longer period of time, thereby making the vehicle window glass 200, even after being prepared and placed for a period of time before being assembled on a vehicle, have good adhesion between the ink layer 220 and the adhesive tape of the vehicle body.

[0104] In some embodiments, the surface energy of the ink layer 220 after being placed at a temperature of 25°C and a humidity of 60% for 30 days is greater than or equal to 50 mN / m.

[0105] Specifically, the surface energy of the ink layer 220 after being placed at a temperature of 25°C and a humidity of 60% for 30 days can be, but is not limited to, greater than or equal to 50 mN / m, greater than or equal to 52 mN / m, greater than or equal to 54 mN / m, greater than or equal to 56 mN / m, greater than or equal to 58 mN / m, greater than or equal to 60 mN / m, greater than or equal to 62 mN / m, greater than or equal to 64 mN / m, etc.

[0106] Optionally, the surface energy of the ink layer 220 is greater than or equal to 50 mN / m after being placed at a temperature of 15-25°C (for example, 15°C, 18°C, 20°C, 23°C, 25°C) and a humidity of 40-60% (for example, 40%, 45%, 50%, 55%, 60%, etc.) for 30 days.

[0107] The surface energy of the ink layer 220 of the embodiment of the present application is greater than or equal to 50 mN / m after being placed at a temperature of 25°C and a humidity of 60% for 30 days. The ink layer 220 of the present application can maintain a high surface energy for a long time, weakening the electrostatic effect between the surface of the ink layer 220 and dust, reducing the adhesion of dust, and improving the adhesion performance of the ink layer 220 when bonded with the adhesive strip. In addition, the ink layer 220 of the present application has a high surface energy after being placed for 30 days, so that the vehicle window glass 200 can maintain a high surface energy from the time of production to the time of delivery to the customer, and still has good adhesion performance after being placed and stored for a month.

[0108] In some embodiments, the surface resistivity of the ink layer 220 is less than or equal to 10 6 Ω·cm.

[0109] Specifically, the surface resistivity of the ink layer 220 can be, but is not limited to, less than or equal to 10 6 Ω·cm, less than or equal to 0.8×10 6 Ω·cm, less than or equal to 0.6×10 6 Ω·cm, less than or equal to 0.4×10 6 Ω·cm, less than or equal to 0.2×10 6 Ω·cm, less than or equal to 1×10 5 Ω·cm, less than or equal to 0.8×10 5 Ω·cm, less than or equal to 0.6×10 5 Ω·cm, less than or equal to 0.4×10 5 Ω·cm, less than or equal to 0.2×10 5 Ω·cm, etc.

[0110] The ink layer 220 of the present application has a low surface resistivity, can better static charge, improves the antistatic effect of the ink layer 220, makes the ink layer 220 less likely to adsorb dust, and the surface energy is always maintained at a high level, thereby improving the adhesion performance of the surface of the ink layer 220.

[0111] The vehicle window glass 200 of the present application can be prepared by the following steps: (1) a glass substrate 300 and a screen plate, optionally, the mesh number of the screen plate is 200-300 (for example, it can be but is not limited to 200, 250, 300, etc.); (2) fixing the screen plate on the surface of the glass substrate 300, and the distance between the screen plate and the glass substrate 300 is 18 mm; (3) slowly pouring the antistatic ink into the non-printing area of the screen plate, and then uniformly printing the antistatic ink on the surface of the glass substrate 300 with a squeegee; (4) placing the glass substrate 300 printed with the antistatic ink into an oven at 140-180°C (for example, 140°C, 150°C, 160°C, 170°C, 180°C, etc.) for 1-5 min (for example, 1 min, 2 min, 3 min, 4 min, 5 min, etc.), and then into a muffle furnace at 400-600°C (for example, it can be but is not limited to 400°C, 430°C, 450°C, 480°C, 500°C, 530°C, 550°C, 580°C, 600°C, etc.) for 1-5 min (for example, 1 min, 2 min, 3 min, 4 min, 5 min, etc.), and then into an oven at 100-140°C (for example, 100°C, 110°C, 120°C, 130°C, 140°C, etc.) for 30-70 min (for example, 30 min, 40 min, 50 min, 60 min, 70 min, etc.), and finally adjusting the temperature to 110-130°C (for example, 110°C, 120°C, 130°C, 135°C, 140°C, 150°C, 160°C, etc.) for 10-60 min (for example, 10 min, 20 min, 30 min, 40 min, 50 min, 60 min, etc.) to cure the antistatic ink to form an ink layer 220, thereby obtaining the vehicle window glass 200.

[0112] Optionally, the thickness of the ink layer 220 is 8-10 μm. Specifically, the thickness of the ink layer 220 can be but is not limited to 8 μm, 8.5 μm, 9 μm, 9.5 μm, 10 μm, etc. If the thickness of the ink layer 220 is too thin, the shielding property of the ink layer 220 is not enough, and the ink layer 220 cannot fully cover the surface of the glass substrate 300, reducing the antistatic effect of the vehicle window glass 200 and the adhesion of the ink layer 220 to the adhesive strip; if the thickness of the ink layer 220 is too thick, the preparation cost of the vehicle window glass 200 is increased.

[0113] In some embodiments, the glass substrate 300 is a single glass sheet, which can be transparent glass or colored glass. Optionally, when the glass sheet is transparent glass, the total iron content (as Fe2O3) of the glass sheet is ≤ 0.1%, or ≤ 0.05%, or ≤ 0.01%. If the total iron content of the glass sheet is too high, the color of the glass sheet is too dark, and the visible light transmittance is too low, which is not conducive to reducing the emissivity of the glass substrate 100.

[0114] Optionally, the thickness of the glass sheet is in the range of 0.5 mm to 2.6 mm; in particular, the thickness of the glass sheet can be, but is not limited to, 0.5 mm, 0.6 mm, 0.8 mm, 1.0 mm, 1.1 mm, 1.3 mm, 1.5 mm, 1.8 mm, 2.1 mm, 2.3 mm, 2.5 mm, 2.6 mm, etc.

[0115] Optionally, the visible light transmittance of the glass sheet is greater than or equal to 70%; in particular, the visible light transmittance of the glass sheet can be, but is not limited to, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 98%, etc.

[0116] See Figure 4 In other embodiments, the glass substrate 300 comprises a first glass sheet 310, an intermediate adhesive layer 320, and a second glass sheet 330 stacked in sequence, and the ink layer 220 is arranged on the surface of the second glass sheet 330 away from the first glass sheet 310.

[0117] Optionally, the first glass sheet 310 can be transparent glass or colored glass. Optionally, when the first glass sheet 310 is transparent glass, the total iron content (as Fe2O3) of the first glass sheet 310 is ≤ 0.1%, or ≤ 0.05%, or ≤ 0.01%. If the total iron content of the first glass sheet 310 is too high, the color of the first glass sheet 310 is too dark, and the visible light transmittance is too low, which is not conducive to reducing the emissivity of the glass substrate 300.

[0118] Optionally, the thickness of the first glass sheet 310 is in the range of 1.1 mm to 3.5 mm; in particular, the thickness of the first glass sheet 310 can be, but is not limited to, 1.1 mm, 1.3 mm, 1.5 mm, 1.8 mm, 2.1 mm, 2.3 mm, 2.5 mm, 2.8 mm, 3.1 mm, 3.3 mm, 3.5 mm, etc.

[0119] Optionally, the visible light transmittance of the first glass sheet 310 is greater than or equal to 70%; in particular, the visible light transmittance of the first glass sheet 310 can be, but is not limited to, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 98%, etc.

[0120] Optionally, the intermediate adhesive layer 320 can be a single-layer structure or a multi-layer structure. When the intermediate adhesive layer 320 is a multi-layer structure, a plurality of film layers are sequentially stacked.

[0121] Optionally, the intermediate adhesive layer 320 can have an adhesive function. That is, the intermediate adhesive layer 320 includes an adhesive layer. Optionally, the adhesive layer can be, but is not limited to, a thermoplastic polymer film. Optionally, the material of the adhesive layer can be, but is not limited to, at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), and ionomer (SGP).

[0122] Optionally, the intermediate adhesive layer 320 further includes at least one of a sound insulation layer, a colored transparent layer, an ultraviolet cut-off layer, an infrared cut-off layer, and the like.

[0123] Illustratively, the intermediate adhesive layer 320 includes two adhesive layers and a sound insulation layer, and the adhesive layer, the sound insulation layer, and the adhesive layer are sequentially stacked.

[0124] Optionally, the thickness of the intermediate adhesive layer 320 ranges from 0.38 mm to 2.28 mm. Further, the thickness of the intermediate adhesive layer 320 ranges from 0.76 mm to 1.52 mm. Specifically, the thickness of the intermediate adhesive layer 320 can be, but is not limited to, 0.38 mm, or 0.5 mm, or 0.76 mm, or 0.9 mm, or 1.0 mm, or 1.14 mm, or 1.3 mm, or 1.52 mm, or 1.7 mm, or 1.9 mm, or 2 mm, or 2.1 mm, or 2.28 mm, and the like.

[0125] In some embodiments, the visible light transmittance of the intermediate adhesive layer 320 is greater than or equal to 70%. Further, the visible light transmittance of the intermediate adhesive layer 320 is greater than or equal to 80%. Specifically, the visible light transmittance of the intermediate adhesive layer 320 can be, but is not limited to, 70%, 72%, 74%, 76%, 78%, 80%, 82%, 84%, 86%, 88%, 90%, 92%, 94%, 96%, 98%, and the like. In the present embodiment, if the visible light transmittance of the intermediate adhesive layer 320 is too low, the intermediate adhesive layer 320 needs to use a dark-colored intermediate adhesive layer 320, which has a high cost and is not conducive to reducing the preparation cost of the glass substrate 300. In addition, if the visible light transmittance of the intermediate adhesive layer 320 is too low, when the glass substrate 300 is applied to the front windshield, the clarity of the front windshield display is reduced, which is not conducive to safe driving.

[0126] Optionally, the second glass sheet 330 can be transparent glass or colored glass. Optionally, when the second glass sheet 330 is transparent glass, the total iron content (calculated as Fe2O3) of the second glass sheet 330 is ≤0.1%, or ≤0.05%, or ≤0.01%. If the total iron content of the second glass sheet 330 is too high, the color of the second glass sheet 330 is too dark, and the visible light transmittance is too low, which is not conducive to reducing the emissivity of the glass substrate 300.

[0127] Optionally, the thickness of the second glass sheet 330 ranges from 1.1 mm to 3.5 mm; in particular, the thickness of the second glass sheet 330 can be, but is not limited to, 1.1 mm, 1.3 mm, 1.5 mm, 1.8 mm, 2.1 mm, 2.3 mm, 2.5 mm, 2.8 mm, 3.1 mm, 3.3 mm, 3.5 mm, etc.

[0128] Optionally, the visible light transmittance of the second glass sheet 330 is greater than or equal to 70%; in particular, the visible light transmittance of the second glass sheet 330 can be, but is not limited to, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 98%, etc.

[0129] The antistatic ink and the vehicle window glass 200 of the embodiments of the present application are further described below through specific examples.

[0130] Example 1

[0131] The antistatic ink of the present embodiment is prepared by the following steps:

[0132] (1) Preparation of acrylate ink: 5.00 g of glycidyl methacrylate (GMA) resin and 10.00 g of terpineol are heated and stirred at 80°C for 30 min until completely dissolved to form a uniform resin solution; then 75.00 g of organic-inorganic composite pigment is pre-mixed with 10.00 g of terpineol, 0.1 g of BYK-163 dispersant is added and stirred at low speed for 15 min to form a pigment slurry; the pre-dispersed pigment slurry is added to the resin solution, and stirred at 1200 rpm for 30 min to form a preliminary dispersion system, and then ground with a ball mill at 3000 rpm for 3 h until the pigment fineness is ≤30 μm, to obtain the final acrylate ink;

[0133] (2) 95 g of acrylate ink is weighed into a 150 mL beaker, and a glass rod is used to stir the acrylate ink for 5 min to ensure uniform stirring;

[0134] (3) Then 5g of ZCP0024D silicon-containing hydroxyl group adjuvant and 0.2g of KND-KX200 antistatic agent were weighed and uniformly mixed, stirred for 30min, and then added to the acrylate ink and placed in an electric mixer, which was controlled at a certain speed to continue stirring for 2h, to obtain the antistatic ink.

[0135] The vehicle window glass 200 of the present embodiment is prepared by the following steps:

[0136] (1) A transparent glass substrate with a thickness of 2.1mm was provided as the glass layer 210;

[0137] (2) A 250-mesh screen was fixed on the surface of the glass layer 210, and the distance was kept at a height of 18mm;

[0138] (3) The antistatic ink prepared in the present embodiment was slowly poured into the non-printing area of the screen, and then the antistatic ink was uniformly printed on the surface of the glass layer 210 using a squeegee.

[0139] (4) The glass layer 210 with the antistatic ink coating was immediately placed in a 160℃ oven for curing for 2min, and then placed in a 600℃ muffle furnace for shaping for 2min, and then placed in a 120℃ oven for curing for 50min, and finally the temperature was adjusted to 135℃ for curing for 30min, to obtain the vehicle window glass 200, which comprises the glass layer 210 and the ink layer 220 arranged in a stack.

[0140] Example 2

[0141] The antistatic ink of the present embodiment was prepared by the following steps:

[0142] (1) Preparation of acrylate ink: 10.00g of glycidyl methacrylate (GMA) resin and 5.00g of terpineol were heated and stirred at 80℃ for 30min until completely dissolved to form a uniform resin solution; then 80.00g of organic-inorganic composite pigment and 5.00g of terpineol were pre-mixed, 0.1g of BYK-163 dispersant was added, and stirred at low speed for 15min to form a pigment slurry; the pre-dispersed pigment slurry was added to the resin solution, and stirred at 1200rpm for 30min to form a preliminary dispersion system, and then ground with a ball mill at 3000rpm for 3h until the pigment fineness was ≤30μm, to obtain the final acrylate ink;

[0143] (2) 90g of acrylate ink was weighed into a 150mL beaker, and stirred with a glass rod for 5min to ensure uniform stirring;

[0144] (3) Then 10g of the YCP0018 silicon-containing hydroxyl group additive and 0.4g of the ZT-AZO antistatic agent were weighed and uniformly mixed and stirred for 30min, and then added to the acrylate ink and placed in an electric mixer, and stirring was continued at a certain speed for 2h, to obtain the antistatic ink.

[0145] The vehicle window glass 200 of the present embodiment was prepared by the following steps:

[0146] (1) A transparent glass substrate with a thickness of 2.1mm was provided as the glass layer 210;

[0147] (2) A 250-mesh screen was fixed on the surface of the glass layer 210, and the height was kept at a distance of 18mm;

[0148] (3) The antistatic ink prepared in the present embodiment was slowly poured into the non-printing area of the screen, and then the antistatic ink was uniformly printed on the surface of the glass layer 210 using a squeegee.

[0149] (4) The glass layer 210 with the antistatic ink coating was immediately placed in a 160℃ oven for curing for 2min, and then placed in a 600℃ muffle furnace for shaping for 2min, and then placed in a 120℃ oven for curing for 50min, and finally the temperature was adjusted to 135℃ for curing for 30min, to obtain the vehicle window glass 200, which comprises the glass layer 210 and the ink layer 220 arranged in a stack.

[0150] Example 3

[0151] The antistatic ink of the present embodiment was prepared by the following steps:

[0152] (1) Preparation of the acrylate ink: 15.00g of glycidyl methacrylate (GMA) resin and 2.50g of terpineol were heated and stirred at 80℃ for 30min until completely dissolved, to form a uniform resin solution; then 80.00g of organic-inorganic composite pigment and 2.50g of terpineol were pre-mixed, 0.1g of BYK-163 dispersant was added, and low-speed stirring was performed for 15min, to form a pigment slurry; the pre-dispersed pigment slurry was added to the resin solution, and high-speed stirring was performed at 1200rpm for 30min to form a preliminary dispersion system, and then a ball mill was used for grinding at 3000rpm for 3h until the pigment fineness was ≤30μm, to obtain the final acrylate ink;

[0153] (2) 80g of the acrylate ink was weighed and poured into a 150mL beaker, and a glass rod was used to stir the acrylate ink for 5min to ensure uniform stirring;

[0154] (3) Then 7.76 g of JN-SS086 silicon-containing hydroxyl auxiliary agent and 0.24 g of Brofos-AZO were weighed and uniformly mixed and stirred for 30 min, then added to the acrylate ink and placed in an electric mixer, and stirring was continued at a certain speed for 2 h, to obtain an antistatic ink.

[0155] The vehicle window glass 200 of the present embodiment was prepared by the following steps:

[0156] (1) A transparent glass substrate with a thickness of 2.1 mm was provided as the glass layer 210;

[0157] (2) A 250-mesh screen was fixed on the surface of the glass layer 210, and the height was kept at a distance of 18 mm;

[0158] (3) The antistatic ink prepared in the present embodiment was slowly poured into the non-printing area of the screen, and then the antistatic ink was uniformly printed on the surface of the glass layer 210 using a squeegee.

[0159] (4) The glass layer 210 with the antistatic ink coating was immediately placed in a 160°C oven for curing for 2 min, then placed in a 600°C muffle furnace for shaping for 2 min, then placed in a 120°C oven for curing for 50 min, and finally the temperature was adjusted to 135°C for curing for 30 min, to obtain the vehicle window glass 200, which comprises the glass layer 210 and the ink layer 220 arranged in a stack.

[0160] Comparative Example 1

[0161] The ink of the present comparative example was the acrylate ink of Example 1.

[0162] The vehicle window glass 200 of the present comparative example was prepared by the following steps:

[0163] (1) A transparent glass substrate with a thickness of 2.1 mm was provided as the glass layer 210;

[0164] (2) A 250-mesh screen was fixed on the surface of the glass layer 210, and the height was kept at a distance of 18 mm;

[0165] (3) The acrylate ink of Example 1 was slowly poured into the non-printing area of the screen, and then the acrylate ink was uniformly printed on the surface of the glass layer 210 using a squeegee.

[0166] (4) immediately after that, the glass layer 210 with the acrylate ink coating is put into a 160°C oven for 2 min, then into a 600°C muffle furnace for 2 min, then into a 120°C oven for 50 min, and finally the temperature is adjusted to 135°C for 30 min to obtain the vehicle window glass 200, which comprises the glass layer 210 and the ink layer 220 arranged in a stack.

[0167] Comparative Example 2

[0168] The ink of the present comparative example is the acrylate ink of Example 2.

[0169] The vehicle window glass 200 of the present comparative example is prepared by the following steps:

[0170] (1) providing a transparent glass substrate with a thickness of 2.1 mm as the glass layer 210;

[0171] (2) fixing a 250-mesh screen on the surface of the glass layer 210 at a height of 18 mm;

[0172] (3) slowly pouring the acrylate ink of Example 2 into the non-printing area of the screen, and then evenly printing the acrylate ink on the surface of the glass layer 210 with a squeegee.

[0173] (4) immediately after that, the glass layer 210 with the acrylate ink coating is put into a 160°C oven for 2 min, then into a 600°C muffle furnace for 2 min, then into a 120°C oven for 50 min, and finally the temperature is adjusted to 135°C for 30 min to obtain the vehicle window glass 200, which comprises the glass layer 210 and the ink layer 220 arranged in a stack.

[0174] Comparative Example 3

[0175] The ink of the present comparative example is the acrylate ink of Example 3.

[0176] The vehicle window glass 200 of the present comparative example is prepared by the following steps:

[0177] (1) providing a transparent glass substrate with a thickness of 2.1 mm as the glass layer 210;

[0178] (2) fixing a 250-mesh screen on the surface of the glass layer 210 at a height of 18 mm;

[0179] (3) slowly pouring the acrylate ink of Example 3 into the non-printing area of the screen, and then evenly printing the acrylate ink on the surface of the glass layer 210 with a squeegee.

[0180] (4) Immediately place the glass layer 210 with acrylic ink coating into an oven at 160°C for 2 minutes, then place it in a muffle furnace at 600°C for 2 minutes, then place it in an oven at 120°C for 50 minutes, and finally adjust the temperature to 135°C for 30 minutes to obtain the car window glass 200, which includes the glass layer 210 and the ink layer 220 stacked together.

[0181] The following performance tests were performed on the ink layer 220 of the vehicle window glass 200 in each embodiment and comparative example:

[0182] (1) Surface energy test of ink layer 220: After placing the car window glass 200 of each embodiment and comparative example at 25°C and 60% humidity for 30 days, the surface energy of ink layer 220 was measured using a portable droplet shape analyzer; the surface energy of ink layer 220 of each embodiment and comparative example was obtained by measuring three different points of the same sample and then calculating the average value.

[0183] (2) Water film wettability: Use a lint-free cloth to apply a small amount of deionized water solution evenly to the surface of the ink layer 220 of the car window glass 200; wait 30 seconds and observe the shrinkage of the water film on the surface of the ink layer 220. If the water film shrinks, it indicates that the water wettability of the ink layer 220 surface is poor and the product is unqualified; if the water film does not shrink (i.e., it covers evenly), it indicates that the water wettability of the ink layer 220 surface is good and the product is qualified.

[0184] (3) Activator wettability: Use a lint-free cloth to apply a small amount of activator solution (Sika's silane coupling agent solution, model number: [model number missing]). Apply Aktivator-120 Hydro evenly to the surface of the ink sample. Wait 30 seconds and observe the shrinkage of the activator solution on the surface of ink layer 220. If the activator solution shrinks, it indicates poor wetting of the activator solution on the surface of ink layer 220, and the product is unqualified; if no shrinkage occurs, it indicates good wetting of the activator solution on the surface of ink layer 220, and the product is qualified.

[0185] (4) Electrostatic adsorption test: According to the measurement method of ISO 16900-3, the mass difference of the ink layer 220 of the car window glass 200 before and after adsorbing talc powder was tested, and the adsorption amount per unit area (e.g., mg / cm2) was calculated.

[0186] (5) Adhesion test: PU adhesive was uniformly coated on the surface of the ink layer 220 away from the glass layer 210 in the form of a strip using a glue gun, and an A4 paper was used to press the adhesive strip to ensure that the adhesive strip was fully bonded to the ink layer 220 and formed an adhesive strip with a width of about 10 mm. Then, after being placed at room temperature (25°C) for 7 days, the adhesive strip was cut with a knife to uniformly separate the adhesive strip from the ink layer 220. According to the damage state of the adhesive strip by the knife, the adhesion level can be divided into: A level: the adhesive strip and the ink layer 220 are delaminated; CF level: cohesive failure of the adhesive strip (i.e. after cutting, part of the adhesive strip remains on the surface of the ink layer 220, and part of the adhesive strip falls off). When the test level is CF level, it indicates that the adhesive strip has good adhesion to the ink layer 220, and when the test level is A level, it indicates that the adhesive strip has weak adhesion to the ink layer 220.

[0187] The test results of Examples 1 to 3 and Comparative Examples 1 to 3 are shown in Table 1 below.

[0188] Table 1 Performance parameters of the ink layer 220 of the vehicle window glass 200 of Examples 1 to 3 and Comparative Examples 1 to 3

[0189]

[0190] From the test results of Examples 1 to 3 and Comparative Examples 1 to 3 in Table 1, it can be seen that, compared with the schemes of Comparative Examples 1 to 3 without adding the silanol-containing additive and the antistatic agent, the ink layer 220 of Examples 1 to 3 has a higher surface energy after being placed for 30 days.

[0191] Figure 5 is a photo of the water film wettability test of the ink layer 220 of Example 1. Figure 6 is a photo of the water film wettability test of the ink layer 220 of Comparative Example 1. Figure 7 is a photo of the activator wettability test of the ink layer 220 of Example 1. Figure 8 is a photo of the activator wettability test of the ink layer 220 of Comparative Example 1. From the test results of Table 1, Figures 5 to 8 , it can be seen that the ink layer 220 of Comparative Examples 1 to 3 does not add the silanol-containing additive and the antistatic agent, and when the ink layer 220 is subjected to the water film wettability test and the activator wettability test, shrinkage occurs to different degrees, which indicates that the water film wettability and the activator wettability of the ink layer 220 of Comparative Examples 1 to 3 are unqualified; while the ink layer 220 of Examples 1 to 3 can be uniformly covered by the water film and the activator solution when subjected to the water film wettability test and the activator wettability test, and no shrinkage is observed, which indicates that the ink layer 220 of the present examples has good affinity with water and activator.

[0192] From the test results of Table 1, it can be seen that the static adsorption amount of Examples 1-3 is lower than that of Comparative Examples 1-3, which is due to the addition of antistatic agent in the ink layer 220 of Examples 1-3, which has better antistatic performance and can better accelerate the dissipation of static charge.

[0193] From the test results of Table 1, it can be seen that Examples 1-3 have higher adhesion grade than Comparative Examples 1-3, and the adhesive strip and the ink layer 220 are less likely to delaminate, which indicates that the adhesive strip and the ink layer 220 have better bonding force. This is because the ink layer 220 of Examples 1-3 contains a silanol-containing additive, which can improve the chemical bonding force between the ink layer 220 and the adhesive strip, thereby improving the bonding force between the ink layer 220 and the adhesive strip.

[0194] Examples 4-13 and Comparative Examples 4-7

[0195] Examples 4-13 and Comparative Examples 4-7 differ from Example 1 in that the mass fraction of the silanol-containing additive and the antistatic agent in the antistatic ink is different.

[0196] The content of the silanol-containing additive and the antistatic agent in the antistatic ink of Examples 4-13 and Comparative Examples 4-7 is shown in Table 2 below.

[0197] The test results of Examples 4-13 and Comparative Examples 4-7 are shown in Table 2 below.

[0198] Table 2 Performance parameters of the ink layer 220 of the vehicle window glass 200 of Examples 4-13 and Comparative Examples 4-7

[0199]

[0200] From the test results of Example 4 to Example 9, Comparative Example 4 and Comparative Example 5 in Table 2, when the antistatic ink does not include the silanol-containing additive (such as Comparative Example 4), the ink layer 220 obtained has a lower surface energy, and the water film wettability and activator wettability tests are not qualified, and the ink layer 220 has a lower adhesion level. When the antistatic ink includes the silanol-containing additive (such as Example 4 to Example 9), as the content of the silanol-containing additive in the antistatic ink increases, the surface energy of the ink layer 220 gradually increases, and the ink layer 220 has good water film wettability and activator wettability, and the surface has a higher adhesion. In addition, compared with Comparative Example 4 which does not include the silanol-containing additive, the static adsorption amount of the ink layer 220 of Example 4 to Example 9 is reduced, indicating that the silanol-containing additive can also reduce the static effect of the surface of the ink layer 220; as the content of the silanol-containing additive in the antistatic ink increases, the static adsorption amount of the ink layer 220 gradually decreases, and the antistatic effect gradually increases.

[0201] From the test results of Example 6, Example 10 to Example 13, Comparative Example 6 and Comparative Example 7, when the amount of the antistatic agent added in the antistatic ink is too small (such as Comparative Example 7), the ink layer 220 obtained has a higher static adsorption amount and a weaker antistatic effect. As the content of the antistatic agent in the antistatic ink increases, the static adsorption amount of the ink layer 220 gradually decreases, and the antistatic effect gradually increases, but the surface energy of the surface of the ink layer 220 slightly decreases, and therefore, the amount of the antistatic agent added should not be too high.

[0202] Example 14 to Example 20, Comparative Example 8 to Comparative Example 11

[0203] Example 14 to Example 20, Comparative Example 8 to Comparative Example 11 are different from Example 1 in that the mass fractions of the acrylate resin and the organic-inorganic composite pigment in the acrylate ink are different.

[0204] The contents of the silanol-containing additive and the antistatic agent in the antistatic ink of Example 14 to Example 20, Comparative Example 8 to Comparative Example 11 are shown in Table 3.

[0205] The test results of Example 14 to Example 20, Comparative Example 8 to Comparative Example 11 are shown in Table 3.

[0206] Table 3 Performance parameters of the ink layer 220 of the vehicle window glass 200 of Example 14 to Example 20, Comparative Example 8 to Comparative Example 11

[0207]

[0208] As can be seen from the test results of Examples 14 to 18, Comparative Example 8 and Comparative Example 9, when the content of the acrylate resin in the acrylate ink is low (Comparative Example 8), the surface energy of the ink layer 220 after being placed for 30 days is low; as the content of the acrylate resin in the acrylate ink increases (e.g., Examples 14 to 18), the surface energy of the ink layer 220 after being placed for 30 days gradually increases.

[0209] As can be seen from the test results of Examples 16, 19, 20, Comparative Example 10 and Comparative Example 11, as the content of the organic-inorganic composite pigment in the acrylate ink increases, the surface energy of the ink layer 220 after being placed for 30 days gradually decreases, and the electrostatic adsorption gradually increases; however, if the content of the organic-inorganic composite pigment in the acrylate ink is too low, the hiding property of the ink layer 220 will be reduced, which affects the color effect of the ink layer 220.

[0210] Please refer to Figure 9 The vehicle 400 according to the embodiments of the present application can be, but is not limited to, a car, a sedan, a passenger car, a van, a truck, a train and the like.

[0211] The vehicle 400 according to the embodiments of the present application can be, but is not limited to, a car, a sedan, a passenger car, a van, a truck, a train and the like.

[0212] For the detailed description of other aspects of the vehicle window glass 200 and the glass substrate 300, please refer to the description of the corresponding part of the above embodiments, which will not be repeated here.

[0213] In some embodiments, the vehicle 400 further comprises a rubber strip 420, which is arranged between the vehicle body 410 and the ink layer 220, and is used to bond the vehicle body 410 and the vehicle window glass 200.

[0214] Optionally, the rubber strip 420 can be, but is not limited to, a polyurethane adhesive (i.e., PU adhesive)

[0215] Optionally, the ink layer 220 of the vehicle window glass 200 meets the CF level of the knife test standard.

[0216] In this application, the phrase "embodiment" or "implementation" means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive of other embodiments. It will be explicitly understood by one of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the embodiments of this application can be combined with each other, without contradiction, to form another embodiment of the application, without departing from the spirit and scope of the application.

[0217] Finally, it should be noted that the above implementations are only used to illustrate the technical solutions of the application but not limit the application. Although the application has been described in detail with reference to the above preferred implementations, one of ordinary skill in the art should understand that the technical solutions of the application can be modified or replaced by equivalents without departing from the spirit and scope of the application.

Claims

1. An antistatic ink, characterized in that, The antistatic ink comprises, by mass fraction, 89.64% to 94.81% acrylic ink, 4.99% to 9.96% silanol-containing additives, and 0.2% to 0.4% antistatic agent.

2. The antistatic ink according to claim 1, characterized in that, The acrylic ink comprises, by mass fraction: 5% to 15% acrylic resin, 75% to 85% organic-inorganic composite pigment, and the balance being solvent.

3. The antistatic ink according to claim 2, characterized in that, The organic-inorganic composite pigment comprises, by mass fraction, 20% to 30% 2,2'-dimethyl-4,4'-diaminobiphenyl, 5% to 10% titanium dioxide, 60% to 70% copper chromium black, 1% to 3% silane oxide and 1% to 3% ethanol.

4. The antistatic ink according to claim 2, characterized in that, The acrylate resin is polyglycidyl methacrylate; the solvent is terpineol.

5. The antistatic ink according to claim 1, characterized in that, The silanol-containing additives include silica sol.

6. The antistatic ink according to claim 1, characterized in that, The antistatic agent includes at least one of zinc aluminum oxide, tin oxide, and zinc oxide.

7. The antistatic ink according to claim 1, characterized in that, The acrylic ink also includes 0.05% to 0.5% dispersant by mass fraction.

8. The antistatic ink according to claim 1, characterized in that, The particle size of the antistatic agent ranges from 20 nm to 250 nm.

9. The antistatic ink according to any one of claims 1-8, characterized in that, The antistatic agent is conductive zinc aluminum oxide, which is ZnO-doped Al2O3, and the mass fraction of Al2O3 in the conductive zinc aluminum oxide is 2% to 5%.

10. A method for preparing an antistatic ink, characterized in that, The preparation method includes: Provide acrylic inks; and The acrylic ink is mixed with a silicone hydroxyl-containing additive and an antistatic agent to obtain an antistatic ink, wherein the antistatic ink comprises, by mass fraction, 89.64% to 94.81% acrylic ink, 4.99% to 9.96% silicone hydroxyl-containing additive and 0.2% to 0.4% antistatic agent.

11. The method for preparing antistatic ink according to claim 10, characterized in that, Acrylic inks include: We provide acrylic resins, organic-inorganic composite pigments, dispersants, and solvents. The acrylate resin is dissolved in a portion of the solvent to form a resin solution; Organic-inorganic composite pigments, dispersants, and residual solvents are mixed to obtain pigment slurries; and Pigment paste is added to resin solution, and then stirred and ball-milled sequentially to obtain acrylic ink.

12. A type of vehicle window glass, characterized in that, The vehicle window glass includes: Glass substrate; and An ink layer is disposed on the surface of the glass substrate, and the ink layer is formed of the antistatic ink according to any one of claims 1-9.

13. The vehicle window glass according to claim 12, characterized in that, The surface energy of the ink layer after being placed at a temperature of 25°C and a humidity of 60% for 30 days is greater than or equal to 50 mN / m.

14. The vehicle window glass according to claim 12, characterized in that, The surface resistivity of the ink layer is less than or equal to 10. 6 Ω·cm.

15. The vehicle window glass according to claim 12, characterized in that, The glass substrate is a single glass sheet, or the glass substrate includes a first glass sheet, an intermediate adhesive layer and a second glass sheet stacked in sequence, and the ink layer is disposed on the surface of the second glass sheet opposite to the first glass sheet.

16. The vehicle window glass according to any one of claims 12-15, characterized in that, The thickness of the ink layer ranges from 8 μm to 10 μm.

17. The vehicle window glass according to any one of claims 12-15, characterized in that, The ink layer is formed by curing antistatic ink at 400°C to 600°C.

18. A vehicle, characterized in that, The vehicles include: Body; and The vehicle window glass according to any one of claims 12-17, wherein the vehicle window glass is mounted on the vehicle body, the ink layer is located between the vehicle body and the glass substrate, and the ink layer is disposed around the outer periphery of the glass substrate.

19. The vehicle according to claim 18, characterized in that, The vehicle also includes: An adhesive strip is disposed between the vehicle body and the ink layer to bond the vehicle body to the window glass.

20. The vehicle according to claim 19, characterized in that, The ink layer of the vehicle window glass meets the CF level according to the knife test standard.

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