Repair material and repair method for electronic product screen cover plate glass

Abstract

The invention relates to the technical field of cover plate glass repairing, in particular to an electronic product screen cover plate glass repairing material and a repairing method, and the electronic product screen cover plate glass repairing material comprises the following components in parts by mass: 30-40 parts of an abrasive, 10-20 parts of a lubricant, 5-15 parts of a dispersant, 1-5 parts of a thickener, 1-5 parts of a silane coupling agent, 1-8 parts of a suspending agent and 10-20 parts of repairing microcapsules. According to the repair material and the repair method for the electronic product screen cover plate glass, deep scratches on the surface of the cover plate glass can be repaired, and no obvious scratches exist on the surface of the repaired cover plate glass.

Description

Technical Field

[0001] The present invention relates to the technical field of cover glass repair, and in particular to a repair material and a repair method for the cover glass of an electronic product screen. Background Art

[0002] Compared with the back cover / shell made of metal and plastic materials, transparent glass as the back cover / shell of various electronic devices such as mobile phones has better appearance, better touch, stronger decorativeness and higher sense of technology. In addition, compared with metal materials, glass materials have less shielding of electromagnetic waves. In the production process of glass products, glass slag produced by cutting and other processes in intermediate products will cause scratches on the glass surface. If such defects cannot be eliminated in time and directly enter the next production process, the product yield will be greatly reduced. Existing glass surface repair is generally repaired manually through grinding, polishing and other processes. Polishing is to use the mechanical and chemical effects between polishing abrasives and the glass surface of the mobile phone panel to polish the glass material. However, this polishing agent is only suitable for shallow scratches and still cannot repair deep scratches. Summary of the invention

[0003] The purpose of the present invention is to provide a repair material and a repair method for the cover glass of an electronic product screen, which can repair deep scratches on the surface of the cover glass, and after the repair, there are no obvious scratches on the surface of the cover glass.

[0004] To achieve the above-mentioned purpose, the present invention provides a repair material for the screen cover glass of electronic products, wherein the components, by mass, include 30-40 parts of abrasive, 10-20 parts of lubricant, 5-15 parts of dispersant, 1-5 parts of thickener, 1-5 parts of silane coupling agent, 1-8 parts of suspending agent and 10-20 parts of repair microcapsules.

[0005] Preferably, the abrasive includes one or more of nano silicon dioxide, nano aluminum oxide, nano cerium oxide, aluminum silicate and diamond powder.

[0006] Preferably, the dispersant includes one or more of polyacrylic acid, polyvinyl alcohol, sodium hexametaphosphate, polydimethylsiloxane and sodium silicate.

[0007] Preferably, the thickener comprises one or more of polyethylene glycol, sodium carboxymethyl cellulose and hydroxyethyl cellulose.

[0008] Preferably, the suspending agent includes one or more of bentonite, kaolin, alkylphenol polyoxyethylene ether and xanthan gum.

[0009] Preferably, the components in the repair microcapsule include, by weight, 1-4 parts of UV glass repair curing glue, 0.1-2 parts of surfactant, 0.1-5 parts of polymethyl methacrylate and 0.1-2 parts of stabilizer.

[0010] Preferably, the stabilizer is 1-5 wt % polyvinyl alcohol.

[0011] A method for repairing the screen cover glass of an electronic product, using the above-mentioned repair material for the screen cover glass of an electronic product, comprises the following steps: S1. Weigh the UV glass repair curing glue, surfactant, polymethyl methacrylate, organic solvent, stabilizer and water according to their mass fractions, dissolve the surfactant in water to obtain an aqueous phase, dissolve the UV glass repair curing glue and polymethyl methacrylate in an organic solvent to obtain an oil phase, mix the aqueous phase and the oil phase, stir and emulsify, add the stabilizer and stir, heat and evaporate until the organic solvent is volatilized, and obtain repair microcapsules; S2, weighing the abrasive, lubricant, dispersant, thickener, silane coupling agent and suspending agent according to their mass fractions, adding water to the abrasive, and then sequentially adding the lubricant, dispersant, silane coupling agent, suspending agent and thickener, stirring while adding to obtain a mixed slurry; S3, adding the repair microcapsules in S1 to the mixed slurry in S2, and stirring evenly to obtain a repair material; S4. Observe the scratched part of the cover glass, stick a protective film around the scratched part, and clean the scratched part with a cleaning agent; S5, applying the repair material obtained in S3 on a polishing machine, polishing and repairing the scratches on the scratched part, and observing whether the scratches still exist. If no scratches exist, using ethanol to wipe off the remaining repair material on the cover glass; S6. If scratches still exist, use ethanol to wipe off the repair material outside the scratches, place the cover glass under a UV light source for curing, polish it again and use ethanol to wipe off the remaining repair material.

[0012] Preferably, in S1, the heating evaporation is performed at a temperature of 30-50° C. for a time of 2-6 h.

[0013] Preferably, in S5, the polishing repair is to first polish at a rotation speed of 2000-2500 rpm / min for 5-10 min, and then reduce the rotation speed to 1000-1500 rpm / min and polish for 10-20 min.

[0014] Therefore, the present invention adopts the above-mentioned repair material and repair method for the screen cover glass of an electronic product, and its beneficial effects are: 1. The repair method provided by the present invention can be used with the repair material provided by the present invention to repair deep scratches on the surface of the cover glass, and there are no obvious scratches on the surface of the cover glass after repair; 2. The repair material provided by the present invention uses repair microcapsules, which wrap the UV glass repair curing glue inside. The UV glass repair curing glue is evenly released into the scratched part through the polishing process, and then the deep scratch repair process is completed through light curing.

[0015] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a comparison diagram of the cover glass before and after repair in Example 7 of the present invention, in, Figure 1 (a) is before repair. Figure 1 (b) is after repair; Figure 2 This is a comparison diagram of the cover glass before and after repair in Comparative Example 1 of the present invention. in, Figure 2 (a) is before repair. Figure 2 (b) is after repair. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The above-mentioned features or features mentioned in the specific examples mentioned in the present invention can be combined arbitrarily, and these specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0018] Example 1 A method for preparing a repair material for a screen cover glass of an electronic product comprises the following steps: S1. Weigh the UV glass repair curing glue, surfactant, polymethyl methacrylate, organic solvent DCM, stabilizer and water by mass. Dissolve 1.3 parts of surfactant (Tween 80 and Span 20 mixed at a mass ratio of 7:5) in 80 mL of water to obtain an aqueous phase. Dissolve 3 parts of UV glass repair curing glue and 3 parts of polymethyl methacrylate in 20 mL of organic solvent DCM to obtain an oil phase. Mix the aqueous phase and the oil phase and stir to emulsify. Add 1 part of 1 wt% stabilizer PVA and stir. Heat and evaporate at 40°C for 5 hours until the organic solvent DCM evaporates to obtain repair microcapsules.

[0019] S2. Weigh 30 parts of abrasive (nano-silicon dioxide and nano-alumina mixed in a mass ratio of 1:1), 10 parts of lubricant, 5 parts of dispersant, 1 part of thickener, 1 part of silane coupling agent and 1 part of suspending agent by mass, add water to the abrasive, and then add lubricant, dispersant sodium silicate, silane coupling agent, suspending agent xanthan gum and thickener polyethylene glycol in sequence, stirring while adding, at a stirring speed of 600 rpm / min, to obtain a mixed slurry.

[0020] S3. Add 10 parts of the repair microcapsules in S1 to the mixed slurry in S2, and stir evenly to obtain a repair material.

[0021] Example 2 A method for preparing a repair material for a screen cover glass of an electronic product comprises the following steps: S1. Weigh 4 parts of UV glass repair curing glue, 2 parts of surfactant, 5 parts of polymethyl methacrylate, organic solvent DCM, 2 parts of 1wt% stabilizer and water by mass, dissolve the surfactant (Tween 80 and Span 20 mixed in a mass ratio of 7:5) in 80 mL of water to obtain an aqueous phase, dissolve the UV glass repair curing glue and polymethyl methacrylate in 20 mL of organic solvent DCM to obtain an oil phase, mix the aqueous phase and the oil phase, stir and emulsify, add the stabilizer and stir, heat and evaporate at 40°C for 5 h until the organic solvent DCM evaporates, and obtain repair microcapsules.

[0022] S2. Weigh 40 parts of abrasive, 20 parts of lubricant, 15 parts of dispersant, 5 parts of thickener, 5 parts of silane coupling agent and 8 parts of suspending agent by mass, add water to the abrasive (nano silicon dioxide and diamond powder are mixed in a mass ratio of 1:1), and then add lubricant, dispersant polyvinyl alcohol, silane coupling agent, suspending agent alkylphenol polyoxyethylene ether and thickener sodium carboxymethyl cellulose in sequence, stirring while adding to obtain a mixed slurry.

[0023] S3. Add 20 parts of the repair microcapsules in S1 to the mixed slurry in S2, and stir evenly to obtain a repair material.

[0024] Example 3 A method for preparing a repair material for a screen cover glass of an electronic product comprises the following steps: S1. Weigh 2 parts of UV glass repair curing glue, 1 part of surfactant, 4 parts of polymethyl methacrylate, organic solvent DCM, 1 part of 1wt% stabilizer and water by mass, dissolve the surfactant (Tween 80 and Span 20 mixed in a mass ratio of 7:5) in 80 mL of water to obtain an aqueous phase, dissolve the UV glass repair curing glue and polymethyl methacrylate in 20 mL of organic solvent DCM to obtain an oil phase, mix the aqueous phase and the oil phase, stir and emulsify, add the stabilizer and stir, heat and evaporate at 40°C for 5 h until the organic solvent DCM evaporates, and obtain repair microcapsules.

[0025] S2. Weigh 35 parts of abrasive, 15 parts of lubricant, 10 parts of dispersant, 2 parts of thickener, 1 part of silane coupling agent and 3 parts of suspending agent by mass, add water to the abrasive (nano-silicon dioxide, nano-alumina and diamond powder are mixed in a mass ratio of 1:1:1), and then add lubricant, dispersant sodium silicate, silane coupling agent, suspending agent xanthan gum and thickener polyethylene glycol in sequence, stirring at a speed of 600 rpm / min, and stir while adding to obtain a mixed slurry.

[0026] S3. Add 12 parts of the repair microcapsules in S1 to the mixed slurry in S2, and stir evenly to obtain a repair material.

[0027] Example 4 A method for preparing a repair material for a screen cover glass of an electronic product comprises the following steps: S1. Weigh 3 parts of UV glass repair curing glue, 1.5 parts of surfactant, 4 parts of polymethyl methacrylate, organic solvent DCM, 0.8 parts of 2wt% stabilizer and water by mass, dissolve the surfactant (Tween 80 and Span 20 mixed in a mass ratio of 7:5) in 80 mL of water to obtain an aqueous phase, dissolve the UV glass repair curing glue and polymethyl methacrylate in 20 mL of organic solvent DCM to obtain an oil phase, mix the aqueous phase and the oil phase, stir and emulsify, add the stabilizer and stir, heat and evaporate at 40°C for 5 h until the organic solvent DCM evaporates, and obtain repair microcapsules.

[0028] S2. Weigh 36 parts of abrasive, 12 parts of lubricant, 5 parts of dispersant, 1 part of thickener, 1 part of silane coupling agent and 2 parts of suspending agent by mass, add water to the abrasive (silicon dioxide, aluminum silicate and diamond powder are mixed in a mass ratio of 2:1:1), and then add lubricant, dispersant polydimethylsiloxane, silane coupling agent, suspending agent alkylphenol polyoxyethylene ether and thickener polyethylene glycol in sequence, stirring while adding to obtain a mixed slurry.

[0029] S3. Add 15 parts of the repair microcapsules in S1 to the mixed slurry in S2, and stir evenly to obtain a repair material.

[0030] Example 5 A method for preparing a repair material for a screen cover glass of an electronic product comprises the following steps: S1. Weigh 4 parts of UV glass repair curing glue, 1.5 parts of surfactant, 5 parts of polymethyl methacrylate, organic solvent DCM, 1.2 parts of 1wt% stabilizer and water by mass, dissolve the surfactant (Tween 80 and Span 20 mixed in a mass ratio of 7:5) in 80 mL of water to obtain an aqueous phase, dissolve the UV glass repair curing glue and polymethyl methacrylate in 20 mL of organic solvent DCM to obtain an oil phase, mix the aqueous phase and the oil phase, stir and emulsify, add the stabilizer and stir, heat and evaporate at 40°C for 5 h until the organic solvent DCM evaporates, and obtain repair microcapsules.

[0031] S2. Weigh 32 parts of abrasive, 18 parts of lubricant, 8 parts of dispersant, 2 parts of thickener, 2 parts of silane coupling agent and 3 parts of suspending agent by mass, add water to the abrasive (nano silicon dioxide, aluminum silicate and diamond powder mixed in a mass ratio of 2:2:1), and then add lubricant, dispersant polydimethylsiloxane, silane coupling agent, suspending agent xanthan gum and thickener polyethylene glycol in sequence, stirring while adding to obtain a mixed slurry.

[0032] S3. Add 20 parts of the repair microcapsules in S1 to the mixed slurry in S2, and stir evenly to obtain a repair material.

[0033] Example 6 A method for repairing screen cover glass of an electronic product comprises the following steps: S1. Observe the scratched part of the cover glass, apply a protective film 15 mm around the scratched part, and clean the scratched part with a cleaning agent.

[0034] S2, apply the repair material in Example 3 on the polishing machine, continue to polish and repair the scratches on the scratched part, first polish at a speed of 2500 rpm / min for 8 minutes, then reduce the speed to 1200 rpm / min and polish for 15 minutes, observe whether there are still scratches, if there are no scratches, use ethanol to wipe off the residual repair material on the cover glass; S4. If scratches still exist, use ethanol to wipe off the repair material outside the scratches, cure the cover glass under a UV light source, polish it again and use ethanol to wipe off the remaining repair material.

[0035] Example 7 A method for repairing screen cover glass of an electronic product comprises the following steps: S1. Observe the scratched part of the cover glass, put a protective film around the scratched part, and clean the scratched part with a cleaning agent; S2, apply the repair material in Example 5 on the polishing machine, continue to polish and repair the scratches on the scratched part, first polish at a speed of 2500 rpm / min for 5 minutes, then reduce the speed to 1000 rpm / min and polish for 20 minutes, observe whether there are still scratches, if there are no scratches, use ethanol to wipe off the residual repair material on the cover glass; S3. If scratches still exist, use ethanol to wipe off the repair material outside the scratches, place the cover glass under a UV light source for curing, polish it again and use ethanol to wipe off the remaining repair material.

[0036] Example 8 The preparation method of UV glass repair curing adhesive comprises the following steps: S1. Mix 17wt% of bisphenol A-10EO acrylate monomer, 26wt% of oligomer BPEFPAA, 23wt% of polyester acrylate, 10wt% of polyether acrylate monomer, 17wt% of methyl methacrylate and 2wt% of additives (stabilizer, leveling agent and diluent), and stir at high speed until uniformly dispersed to obtain a glue system.

[0037] S2. Add 5 wt % of photoinitiator to the adhesive solution system obtained in S1, continue stirring until the photoinitiator is evenly mixed, and obtain UV glass repair curing adhesive after filtering.

[0038] Comparative Example 1 A method for preparing a repair material for a screen cover glass of an electronic product comprises the following steps: S1. Weigh 32 parts of abrasive, 18 parts of lubricant, 8 parts of dispersant, 2 parts of thickener, 2 parts of silane coupling agent and 3 parts of suspending agent by mass, add water to the abrasive (nano silicon dioxide, aluminum silicate and diamond powder are mixed in a mass ratio of 2:2:1), and then add lubricant, dispersant polydimethylsiloxane, silane coupling agent, suspending agent xanthan gum and thickener polyethylene glycol in sequence, and stir while adding to obtain a repair material.

[0039] Comparative Example 2 The difference from Example 7 is that the repair material in S3 is the repair material in Comparative Example 1, and the rest of the steps are the same as in Example 7.

[0040] Test Example 1 The repair methods in Example 7 and Comparative Example 2 were used to repair glasses with similar scratches. The states of the two glasses before and after repair are as follows: Figure 1 and Figure 2 As shown, it can be seen that Figure 2 Therefore, the repair agent in Example 5 combined with the repair method in Example 7 has an excellent repair effect on the scratched glass.

[0041] Therefore, the present invention adopts the above-mentioned repair material and repair method for the cover glass of the electronic product screen to repair the deep scratches on the surface of the cover glass, and there are no obvious scratches on the surface of the cover glass after the repair.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A repair material for screen cover glass of electronic products, characterized in that: The components, calculated by weight, include 30-40 parts of abrasive, 10-20 parts of lubricant, 5-15 parts of dispersant, 1-5 parts of thickener, 1-5 parts of silane coupling agent, 1-8 parts of suspending agent and 10-20 parts of repair microcapsules.

2. The repair material for the screen cover glass of an electronic product according to claim 1, characterized in that: The abrasive includes one or more of nano silicon dioxide, nano aluminum oxide, nano cerium oxide, aluminum silicate and diamond powder.

3. The repair material for the screen cover glass of an electronic product according to claim 1, characterized in that: The dispersant includes one or more of polyacrylic acid, polyvinyl alcohol, sodium hexametaphosphate, polydimethylsiloxane and sodium silicate.

4. The repair material for the screen cover glass of an electronic product according to claim 1, characterized in that: Thickeners include one or more of polyethylene glycol, sodium carboxymethylcellulose and hydroxyethylcellulose.

5. The repair material for the screen cover glass of an electronic product according to claim 1, characterized in that: The suspending agent includes one or more of bentonite, kaolin, alkylphenol polyoxyethylene ether and xanthan gum.

6. The repair material for the screen cover glass of an electronic product according to claim 1, characterized in that: The components in the repair microcapsule include, by weight, 1-4 parts of UV glass repair curing glue, 0.1-2 parts of surfactant, 0.1-5 parts of polymethyl methacrylate and 0.1-2 parts of stabilizer.

7. The repair material for the screen cover glass of an electronic product according to claim 6, characterized in that: The stabilizer is 1-5wt% polyvinyl alcohol.

8. A method for repairing screen cover glass of an electronic product, characterized in that: Using the repair material for the screen cover glass of an electronic product according to any one of claims 1 to 7 comprises the following steps: S1. Weigh the UV glass repair curing glue, surfactant, polymethyl methacrylate, organic solvent, stabilizer and water according to their mass fractions, dissolve the surfactant in water to obtain an aqueous phase, dissolve the UV glass repair curing glue and polymethyl methacrylate in an organic solvent to obtain an oil phase, mix the aqueous phase and the oil phase, stir and emulsify, add the stabilizer and stir, heat and evaporate until the organic solvent is volatilized, and obtain repair microcapsules; S2, weighing the abrasive, lubricant, dispersant, thickener, silane coupling agent and suspending agent according to their mass fractions, adding water to the abrasive, and then sequentially adding the lubricant, dispersant, silane coupling agent, suspending agent and thickener, stirring while adding to obtain a mixed slurry; S3, adding the repair microcapsules in S1 to the mixed slurry in S2, and stirring evenly to obtain a repair material; S4. Observe the scratched part of the cover glass, stick a protective film around the scratched part, and clean the scratched part with a cleaning agent; S5, applying the repair material obtained in S3 on a polishing machine, polishing and repairing the scratches on the scratched part, and observing whether the scratches still exist. If no scratches exist, using ethanol to wipe off the remaining repair material on the cover glass; S6. If scratches still exist, use ethanol to wipe off the repair material outside the scratches, place the cover glass under a UV light source for curing, polish it again and use ethanol to wipe off the remaining repair material.

9. The method for repairing screen cover glass of an electronic product according to claim 8, characterized in that: In S1, heating evaporation is performed at a temperature of 30-50°C for a time of 2-6 hours.

10. The method for repairing screen cover glass of an electronic product according to claim 8, characterized in that: In S5, the polishing repair is to first polish at a rotation speed of 2000-2500 rpm / min for 5-10 minutes, and then reduce the rotation speed to 1000-1500 rpm / min for polishing for 10-20 minutes.

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