Adhesive for glass manufacturing process and application thereof

Abstract

The invention provides an adhesive for a glass manufacturing process and application of the adhesive, and belongs to the technical field of auxiliary materials for the glass manufacturing process. The adhesive for the glass manufacturing process comprises the following components in parts by mass: 80-120 parts of an acrylic resin polymer, 5-15 parts of epoxy acrylic resin, 2.5-7.5 parts of polyurethane acrylic resin, 1-3 parts of an antistatic agent, 1-2 parts of a curing agent, 1-3 parts of a photoinitiator and 50-135 parts of an organic solvent, wherein the weight-average molecular weight of the acrylic resin polymer is 70-80 million. According to the invention, an acrylic resin polymer with a weight-average molecular weight of 70,000-800,000 is adopted, and light-cured resin (including polyurethane acrylic resin and epoxy acrylic resin), an antistatic agent, a curing agent, a photoinitiator and an organic solvent are added; the prepared adhesive for the glass process can effectively solve the problem that the existing acrylic pressure-sensitive adhesive is difficult in film tearing after viscosity reduction in UTG glass etching.

Description

Technical Field

[0001] This invention relates to the field of glass manufacturing auxiliary materials technology, and in particular to an adhesive for glass manufacturing and its application. Background Technology

[0002] With the trend towards thinner, lighter, and more flexible electronic devices, the demand for UTG (Ultra-Thin Glass) as an important display material is increasing. UTG is typically produced by thinning thick glass to a target thickness (≤20μm) through etching processes such as alkaline washing, water washing, and acid washing. During this process, an adhesive film is needed to protect the UTG. However, in practical applications, it has been found that existing adhesive films, mainly based on ordinary acrylic adhesives, present some problems when peeling off after subsequent ultraviolet light irradiation for de-adhesion. Due to the extreme thinness and large size of UTG (50×50cm), if the peeling force is too high (≥20gf / 25mm), the UTG glass is prone to breakage, causing operational difficulties and easily damaging the glass during peeling. Summary of the Invention

[0003] In view of this, the object of the present invention is to provide an adhesive for glass manufacturing and its application. The adhesive for glass manufacturing provided by the present invention allows for easy film removal after tack reduction.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0005] This invention provides an adhesive for glass manufacturing, comprising the following components in parts by weight:

[0006] The composition comprises 80-120 parts of acrylic resin polymer, 5-15 parts of epoxy acrylic resin, 2.5-7.5 parts of polyurethane acrylic resin, 1-3 parts of antistatic agent, 1-2 parts of curing agent, 1-3 parts of photoinitiator, and 50-135 parts of organic solvent, wherein the weight average molecular weight of the acrylic resin polymer is 700,000-800,000.

[0007] Preferably, the acrylic resin polymer is obtained by polymerization reaction of raw materials comprising the following parts by weight: 10-20 parts of isooctyl acrylate, 10-30 parts of methyl acrylate, 5-15 parts of methyl methacrylate, 20-60 parts of butyl acrylate, 1-5 parts of glycidyl methacrylate, 1-10 parts of hydroxyethyl acrylate, 1-5 parts of hydroxybutyl acrylate, 1-5 parts of methacrylic acid, 1-5 parts of acrylamide, and 50-95 parts of ethyl acetate.

[0008] Preferably, the polymerization reaction is carried out at a temperature of 70–80°C for 4–8 hours.

[0009] Preferably, the polyurethane acrylic resin has a weight-average molecular weight of 70,000 to 80,000.

[0010] Preferably, the epoxy acrylate resin has a weight-average molecular weight of 0.5 to 1.5 million.

[0011] Preferably, the curing agent includes isocyanate curing agents and organic salt curing agents.

[0012] Preferably, the mass ratio of the isocyanate curing agent to the organic salt curing agent is 1:0.5 to 1.

[0013] Preferably, the antistatic agent is an ionic antistatic agent.

[0014] The present invention also provides the application of the adhesives for glass manufacturing described above in the ultra-thin glass manufacturing process.

[0015] Preferably, the application includes the following steps:

[0016] The glass manufacturing process uses an adhesive to coat the release layer, which is then cured to obtain an adhesive layer.

[0017] A substrate layer is bonded onto the adhesive layer to obtain a protective film for UTG glass manufacturing.

[0018] Remove the release layer from the surface of the protective film used in the UTG glass manufacturing process, and then attach the adhesive layer to the surface of the UTG glass to protect the UTG.

[0019] This invention provides an adhesive for glass manufacturing, comprising the following components in parts by weight: 80-120 parts of acrylic resin polymer, 5-15 parts of epoxy acrylic resin, 2.5-7.5 parts of polyurethane acrylic resin, 1-3 parts of antistatic agent, 1-2 parts of curing agent, 1-3 parts of photoinitiator, and 50-135 parts of organic solvent, wherein the acrylic resin polymer has a weight-average molecular weight of 700,000-800,000.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] This invention utilizes an acrylic resin polymer with a weight-average molecular weight of 700,000 to 800,000, and adds photocurable resins (including polyurethane acrylic resin and epoxy acrylic resin), antistatic agents, curing agents, photoinitiators, and organic solvents. After tack reduction, the antistatic agent lowers surface resistance and the coefficient of friction, reducing dust adsorption and making the film removal process smoother. Through rational formulation design, the prepared adhesive for glass processing effectively solves the problem of difficult film removal after tack reduction in existing acrylic pressure-sensitive adhesives during UTG glass etching, reducing the damage rate of UTG during the film removal process and improving yield and operational efficiency. Furthermore, the raw materials of this invention are widely available and low in cost, making it suitable for large-scale industrial production and possessing excellent application prospects.

[0022] Furthermore, this invention specifies the raw materials for the acrylic resin polymer. Because the acrylic resin polymer of this invention is modified by crosslinking with functional monomers, the unique monomer combination enhances the hydrophobicity and crosslinking density of the adhesive layer. The use of isocyanate curing agents and organic salt curing agents forms a dense three-dimensional network structure that blocks fluoride ion penetration. The use of epoxy groups (such as glycidyl methacrylate) for reinforcement improves the density of the adhesive layer and significantly enhances alkali resistance. After completing the etching process, the adhesive undergoes a tack reduction treatment by ultraviolet light irradiation. Since the adhesive of this invention simultaneously uses polyurethane acrylic resin with a weight-average molecular weight of 70,000 to 80,000 and epoxy acrylic resin with a weight-average molecular weight of 05,000 to 15,000 as UV-curing resins, the peel force after ultraviolet light irradiation is significantly reduced, further solving the problem of high peel force in tack-reducing adhesives. Detailed Implementation

[0023] This invention provides an adhesive for glass manufacturing, comprising the following components in parts by weight:

[0024] The composition comprises 80-120 parts of acrylic resin polymer, 5-15 parts of epoxy acrylic resin, 2.5-7.5 parts of polyurethane acrylic resin, 1-3 parts of antistatic agent, 1-2 parts of curing agent, 1-3 parts of photoinitiator, and 50-135 parts of organic solvent, wherein the weight average molecular weight of the acrylic resin polymer is 700,000-800,000.

[0025] Unless otherwise specified, all raw materials used in this invention are commercially available products in the field.

[0026] The specific mass fraction of the acrylic resin polymer in the adhesive for glass manufacturing provided by this invention can be 80, 90, 100, 110, or 120 parts.

[0027] In this invention, the weight-average molecular weight of the acrylic resin polymer can be 750,000, 770,000, or 790,000.

[0028] In this invention, the acrylic resin polymer is preferably obtained by polymerization reaction of raw materials comprising the following parts by weight: 10-20 parts of isooctyl acrylate, 10-30 parts of methyl acrylate, 5-15 parts of methyl methacrylate, 20-60 parts of butyl acrylate, 1-5 parts of glycidyl methacrylate, 1-10 parts of hydroxyethyl acrylate, 1-5 parts of hydroxybutyl acrylate, 1-5 parts of methacrylic acid, 1-5 parts of acrylamide, and 50-95 parts of ethyl acetate.

[0029] In this invention, the mass fraction of isooctyl acrylate in the raw material can be 10, 15, or 20 parts.

[0030] In this invention, the mass fraction of methyl acrylate in the raw material can be 10, 20 or 30 parts.

[0031] In this invention, the mass fraction of methyl methacrylate in the raw material can be 5, 10, or 15 parts.

[0032] In this invention, the mass fraction of butyl acrylate in the raw material can be 20, 40, or 60 parts.

[0033] In this invention, the mass fraction of glycidyl methacrylate in the raw material can be 1, 2.5, or 5 parts.

[0034] In this invention, the mass fraction of hydroxyethyl acrylate in the raw material can be 1, 5, or 10 parts.

[0035] In this invention, the mass fraction of hydroxybutyl acrylate in the raw material can be 1, 2.5, or 5 parts.

[0036] In this invention, the mass fraction of acrylamide in the raw material can be 1, 2.5, or 5 parts.

[0037] In this invention, the mass fraction of methacrylic acid in the raw material can be 1, 2.5, or 5 parts.

[0038] In this invention, the mass fraction of ethyl acetate in the raw material can be 50, 80, or 95 parts.

[0039] In this invention, the temperature of the polymerization reaction is preferably 70-80°C, specifically 70, 75 or 80°C, and the time is preferably 4-8 hours, specifically 4, 6 or 8 hours.

[0040] In this invention, the polymerization reaction preferably also includes an initiator, which preferably includes azobisisobutyronitrile (AIBN) and / or benzoyl peroxide (BPO), and the mass ratio of AIBN to BPO is preferably 1:1.

[0041] In this invention, the amount of the initiator is preferably 0.1% to 1.0% of the total mass of the reaction monomers, specifically 0.1%, 0.5% or 1.0%. The reaction monomers include isooctyl acrylate, methyl acrylate, methyl methacrylate, butyl acrylate, glycidyl methacrylate, hydroxyethyl acrylate, hydroxybutyl acrylate, methacrylic acid and acrylamide.

[0042] In this invention, the acrylic resin polymer is preferably prepared by a method comprising the following steps: adding isooctyl acrylate, methyl acrylate, methyl methacrylate, butyl acrylate, glycidyl methacrylate, hydroxyethyl acrylate, hydroxybutyl acrylate, methacrylic acid, acrylamide and ethyl acetate to a reaction vessel, purging with nitrogen gas for 0.5 to 2 hours to remove oxygen from the reaction system, and then adding an initiator to carry out the polymerization reaction to obtain the acrylic resin polymer.

[0043] Based on the mass of the acrylic resin polymer, the specific mass fraction of epoxy acrylic resin in the adhesive for glass manufacturing provided by this invention can be 5, 10, or 15 parts.

[0044] In this invention, the weight-average molecular weight of the epoxy acrylate resin is preferably 0.5 to 1.5 million, specifically 0.5, 1.0 or 1.5 million.

[0045] Based on the mass of the acrylic resin polymer, the mass fraction of polyurethane acrylic resin in the glass manufacturing adhesive provided by this invention can be 2.5, 5, or 7.5 parts.

[0046] In this invention, the weight-average molecular weight of the polyurethane acrylic resin is preferably 70,000 to 80,000, specifically 70,000, 76,000, or 80,000.

[0047] In this invention, the polyurethane acrylic resin and epoxy acrylic resin are used as photocurable resins, which can reduce the peel force after ultraviolet light irradiation and solve the problem of high peel force of adhesive film.

[0048] Based on the mass of the acrylic resin polymer, the mass fraction of the antistatic agent in the glass manufacturing adhesive provided by this invention can be 1, 2 or 3 parts.

[0049] In this invention, the antistatic agent is preferably an ionic antistatic agent. After the antistatic agent reduces the viscosity, it can reduce the surface resistance and friction coefficient, reduce dust adsorption, and make the film peeling process smoother. It can effectively solve the problem of difficult film peeling after UTG etching and viscosity reduction, reduce the damage rate of UTG in the film peeling process, and improve the yield and operating efficiency.

[0050] In this invention, the ionic antistatic agent preferably includes one or more of LS-155 / LS-156 (purchased from Nantong Leishang Chemical Co., Ltd.), E26 (purchased from Shandong Juli Antistatic Technology Co., Ltd.), and E-5300 (purchased from Dongguan Fiat Antistatic Technology Co., Ltd.).

[0051] Based on the mass of the acrylic resin polymer, the mass fraction of the curing agent in the glass manufacturing adhesive provided by this invention can be 1, 1.5, or 2 parts.

[0052] In this invention, the curing agent preferably includes isocyanate curing agents and organic salt curing agents. The isocyanate curing agent preferably includes one or more of HDI (hexamethylene diisocyanate), IPDI (isophorone diisocyanate), TDI (toluene diisocyanate), and MDI (diphenylmethane diisocyanate). The organic salt curing agent preferably includes one or more of quaternary ammonium salt curing agents, metal chelate curing agents, sulfonate curing agents, and phosphate ester curing agents.

[0053] In this invention, the mass ratio of the isocyanate curing agent to the organic salt curing agent is preferably 1:0.5 to 1, specifically 1:0.5 or 1:1.

[0054] Based on the mass of the acrylic resin polymer, the mass fraction of the photoinitiator in the glass manufacturing adhesive provided by this invention can be 1, 2 or 3 parts.

[0055] In this invention, the photoinitiator preferably includes one or more of 1-hydroxycyclohexylphenyl ketone (photoinitiator 184), 2,4,6-trimethylbenzoyl diphenyl phosphorus oxide (photoinitiator TPO), and 2-hydroxy-2-methyl-1-phenyl-1-propanone (photoinitiator 1173), more preferably including photoinitiator 184 and photoinitiator TPO, wherein the mass ratio of photoinitiator 184 to photoinitiator TPO is preferably 1:1.

[0056] Based on the mass of the acrylic resin polymer, the mass fraction of organic solvent in the adhesive for glass manufacturing provided by this invention can be 50, 75, 100, 115, or 135 parts.

[0057] In this invention, the organic solvent is preferably ethyl acetate and / or toluene.

[0058] This invention also provides a method for preparing the adhesive for glass manufacturing described in the above technical solution, comprising the following steps:

[0059] An acrylic resin polymer, a polyurethane acrylic resin, an epoxy acrylic resin, an antistatic agent, a curing agent, a photoinitiator, and an organic solvent are mixed to obtain the adhesive for glass manufacturing.

[0060] In this invention, the mixing is preferably stirring, the stirring speed is preferably 150-450 r / min, specifically 150, 300 or 450 r / min, and the stirring time is preferably 1-2 h.

[0061] The present invention also provides the application of the adhesives for glass manufacturing described above in the ultra-thin glass manufacturing process.

[0062] In this invention, the application preferably includes the following steps:

[0063] The glass manufacturing process uses an adhesive to coat the release layer, which is then cured to obtain an adhesive layer.

[0064] A substrate layer is bonded onto the adhesive layer to obtain a protective film for UTG glass manufacturing.

[0065] Remove the release layer from the surface of the protective film used in the UTG glass manufacturing process, and then attach the adhesive layer to the surface of the UTG glass to protect the UTG.

[0066] In this invention, the release layer is preferably a PET (polyethylene terephthalate) release layer.

[0067] In this invention, the curing temperature is preferably 120°C and the curing time is preferably 1 to 2 minutes.

[0068] In this invention, the substrate layer is preferably a PO (polyolefin) substrate, and the thickness of the PO substrate is preferably 100 μm.

[0069] The technical solutions of this invention will be clearly and completely described below with reference to the embodiments thereof. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0070] In the embodiments and comparative examples of this invention, all parts are by weight. The weight-average molecular weight of the polyurethane acrylic resin is 76,000, the weight-average molecular weight of the epoxy acrylic resin is 10,000, the isocyanate curing agent is TDI, the organic salt curing agent is aluminum acetylacetonate, and the antistatic agent is E-5300.

[0071] Example 1

[0072] Preparation of acrylic resin polymer: 10 parts of isooctyl acrylate, 10 parts of methyl acrylate, 5 parts of methyl methacrylate, 20 parts of butyl acrylate, 1 part of glycidyl methacrylate, 1 part of hydroxyethyl acrylate, 1 part of hydroxybutyl acrylate, 1 part of methacrylic acid, 1 part of acrylamide, and 50 parts of ethyl acetate were added to a reaction vessel. After purging with nitrogen for 0.5 h, 0.05% of azobisisobutyronitrile and 0.05% of benzoyl peroxide were added as initiators. The reaction was carried out at 70 °C for 4 h. After cooling, the acrylic resin polymer was obtained.

[0073] Preparation of adhesive for glass manufacturing: In a reaction vessel, 100 parts of the acrylic resin polymer prepared above, 10 parts of epoxy acrylic resin, 2.5 parts of polyurethane acrylic resin, 2 parts of antistatic agent, 1.0 part of isocyanate curing agent, 0.5 parts of organic salt curing agent, 1.0 part of 1-hydroxycyclohexylphenyl ketone, 1.0 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide and 50 parts of ethyl acetate were added sequentially. The mixture was stirred at 300 r / min for 1.5 h at room temperature to obtain the adhesive for glass manufacturing.

[0074] Preparation of protective film for UTG glass manufacturing process: The adhesive for glass manufacturing process prepared above is coated on a 50μm PET release layer, dried and cured at 120℃ for 1min to form an adhesive layer, and then a 100μm PO substrate is bonded on the adhesive layer to prepare a UV anti-adhesion protective film.

[0075] Example 2

[0076] Preparation of acrylic resin polymer: 20 parts of isooctyl acrylate, 30 parts of methyl acrylate, 15 parts of methyl methacrylate, 60 parts of butyl acrylate, 5 parts of glycidyl methacrylate, 10 parts of hydroxyethyl acrylate, 5 parts of hydroxybutyl acrylate, 5 parts of methacrylic acid, 5 parts of acrylamide, and 95 parts of ethyl acetate were added to a reaction vessel. After purging with nitrogen for 2 hours, 0.5% of azobisisobutyronitrile and 0.5% of benzoyl peroxide were added as initiators. The reaction was carried out at 80°C for 8 hours. After cooling, the acrylic resin polymer was obtained.

[0077] Preparation of adhesive for glass manufacturing: In a reaction vessel, 100 parts of the acrylic resin polymer prepared above, 10 parts of epoxy acrylic resin, 7.5 parts of polyurethane acrylic resin, 2 parts of antistatic agent, 1.0 part of isocyanate curing agent, 0.5 parts of organic salt curing agent, 1.0 part of 1-hydroxycyclohexylphenyl ketone, 1.0 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide and 50 parts of ethyl acetate were added sequentially. The mixture was stirred at 300 r / min for 1.5 h at room temperature to obtain the adhesive for glass manufacturing.

[0078] Preparation of protective film for UTG glass manufacturing process: Same as in Example 1.

[0079] Example 3

[0080] Preparation of acrylic resin polymer: 15 parts of isooctyl acrylate, 20 parts of methyl acrylate, 10 parts of methyl methacrylate, 40 parts of butyl acrylate, 2.5 parts of glycidyl methacrylate, 5 parts of hydroxyethyl acrylate, 2.5 parts of hydroxybutyl acrylate, 2.5 parts of methacrylic acid, 2.5 parts of acrylamide, and 80 parts of ethyl acetate were added to a reaction vessel. After purging with nitrogen for 1 hour, 0.25% of azobisisobutyronitrile and 0.25% of benzoyl peroxide (based on the total mass of the monomers) were added as initiators. The reaction was carried out at 75°C for 6 hours. After cooling, the acrylic resin polymer was obtained.

[0081] Preparation of adhesive for glass manufacturing: In a reaction vessel, 100 parts of the acrylic resin polymer prepared above, 10 parts of epoxy acrylic resin, 5.0 parts of polyurethane acrylic resin, 2 parts of antistatic agent, 1.0 part of isocyanate curing agent, 0.5 parts of organic salt curing agent, 1.0 part of 1-hydroxycyclohexylphenyl ketone, 1.0 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide and 50 parts of ethyl acetate were added sequentially. The mixture was stirred at 300 r / min for 1.5 h at room temperature to obtain the adhesive for glass manufacturing.

[0082] Preparation of protective film for UTG glass manufacturing process: Same as in Example 1.

[0083] Comparative Example 1

[0084] Preparation of acrylic resin polymer: Same as in Example 3.

[0085] Preparation of adhesive for glass manufacturing: In a reaction vessel, 100 parts of acrylic resin polymer, 10 parts of epoxy acrylic resin, 5.0 parts of polyurethane acrylic resin, 1.0 part of isocyanate curing agent, 0.5 parts of organic salt curing agent, 1.0 part of 1-hydroxycyclohexylphenyl ketone, 1.0 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide and 50 parts of ethyl acetate were added sequentially as organic solvents. The mixture was stirred at 300 r / min for 1.5 h at room temperature to obtain the adhesive for glass manufacturing.

[0086] Preparation of protective film for UTG glass manufacturing process: Same as in Example 1.

[0087] Comparative Example 2

[0088] Preparation of acrylic resin polymer: Same as in Example 1.

[0089] Preparation of adhesive for glass manufacturing: In a reaction vessel, 100 parts of the above-mentioned acrylic resin polymer, 10 parts of epoxy acrylic resin, 2 parts of antistatic agent, 1.0 part of isocyanate curing agent, 0.5 parts of organic salt curing agent, 1.0 part of 1-hydroxycyclohexylphenyl ketone, 1.0 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide and 50 parts of ethyl acetate were added sequentially. The mixture was stirred at 300 r / min for 1.5 h at room temperature to obtain the adhesive for glass manufacturing.

[0090] Preparation of protective film for UTG glass manufacturing process: Same as in Example 1.

[0091] Comparative Example 3

[0092] Preparation of acrylic resin polymer: 50 parts of isooctyl acrylate, 5 parts of methyl acrylate, 3.5 parts of methyl methacrylate, 15 parts of butyl acrylate, 0.5 parts of glycidyl methacrylate, 15 parts of hydroxyethyl acrylate, 10 parts of hydroxybutyl acrylate, 0.5 parts of methacrylic acid, 0.5 parts of acrylamide, and 80 parts of ethyl acetate were added to a reaction vessel. After purging with nitrogen for 1 hour, 1.25% of azobisisobutyronitrile and 1.25% of benzoyl peroxide (based on the total mass of the monomers) were added as initiators. The reaction was carried out at 82°C for 3.5 hours. After cooling, the acrylic resin polymer was obtained.

[0093] Preparation of adhesives for glass manufacturing and preparation of protective films for UTG glass manufacturing: Same as in Example 1.

[0094] The performance of the protective films used in the UTG glass manufacturing process of the examples and comparative examples was tested, and the test results are shown in Table 1. It can be seen that the specific monomer formulation and process used in the adhesive for glass manufacturing prepared in this invention, and the high molecular weight (weight average molecular weight of 700,000 to 800,000) acrylic resin polymer prepared, effectively protects the UTG glass etching process. After adding photocurable resin (polyurethane acrylic resin, epoxy acrylic resin) and antistatic agent, the success rate of peeling off the protective film for UTG glass manufacturing process can be significantly improved, the damage rate of UTG glass can be reduced, and the operating efficiency can be improved, which has obvious advantages.

[0095] Table 1. Performance test results of protective films for UTG glass manufacturing in the examples and comparative examples.

[0096]

[0097]

[0098] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An adhesive for glass manufacturing, characterized in that, The components include the following parts by mass: The composition comprises 80-120 parts of acrylic resin polymer, 5-15 parts of epoxy acrylic resin, 2.5-7.5 parts of polyurethane acrylic resin, 1-3 parts of antistatic agent, 1-2 parts of curing agent, 1-3 parts of photoinitiator, and 50-135 parts of organic solvent, wherein the weight average molecular weight of the acrylic resin polymer is 700,000-800,000.

2. The adhesive for glass manufacturing according to claim 1, characterized in that, The acrylic resin polymer is obtained by polymerization reaction of raw materials comprising the following parts by weight: 10-20 parts of isooctyl acrylate, 10-30 parts of methyl acrylate, 5-15 parts of methyl methacrylate, 20-60 parts of butyl acrylate, 1-5 parts of glycidyl methacrylate, 1-10 parts of hydroxyethyl acrylate, 1-5 parts of hydroxybutyl acrylate, 1-5 parts of methacrylic acid, 1-5 parts of acrylamide, and 50-95 parts of ethyl acetate.

3. The adhesive for glass manufacturing according to claim 2, characterized in that, The polymerization reaction is carried out at a temperature of 70–80°C for 4–8 hours.

4. The adhesive for glass manufacturing according to claim 1, characterized in that, The weight-average molecular weight of the polyurethane acrylic resin is 70,000 to 80,000.

5. The adhesive for glass manufacturing according to claim 1, characterized in that, The epoxy acrylate resin has a weight-average molecular weight of 0.5 to 1.5 million.

6. The adhesive for glass manufacturing according to claim 1, characterized in that, The curing agent includes isocyanate curing agents and organic salt curing agents.

7. The adhesive for glass manufacturing according to claim 6, characterized in that, The mass ratio of the isocyanate curing agent to the organic salt curing agent is 1:0.5 to 1.

8. The adhesive for glass manufacturing according to claim 1, characterized in that, The antistatic agent is an ionic antistatic agent.

9. The application of the adhesive for glass manufacturing according to any one of claims 1 to 8 in the manufacturing process of ultra-thin glass.

10. The application according to claim 9, characterized in that, Includes the following steps: The glass manufacturing process uses an adhesive to coat the release layer, which is then cured to obtain an adhesive layer. A substrate layer is bonded onto the adhesive layer to obtain a protective film for UTG glass manufacturing. Remove the release layer from the surface of the protective film used in the UTG glass manufacturing process, and then attach the adhesive layer to the surface of the UTG glass to protect the UTG.

Images