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Optical cement for repairing touch screen cracks and application thereof

A touch screen, optical adhesive technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problem of unable to meet the high standard requirements of touch screen crack repair, and the degree of professional requirements is not high. Feasibility Strong, improved repair performance

Active Publication Date: 2019-07-16
浙江国能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing optical adhesive products cannot meet the high standard requirements for touch screen crack repair

Method used

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  • Optical cement for repairing touch screen cracks and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation process of optical glue for touch screen crack repair, the specific steps are as follows:

[0037] (1) Under the condition of avoiding light, mix and stir the ultraviolet photoinitiator, glycidyl methacrylate, and ethoxylated trimethylolpropane triacrylate at a mass ratio of 1:5:7 to obtain the first mixture, which is set aside ;

[0038] (2) The emulsifier is added to 40 times the weight of deionized water, and mixed evenly to obtain a mixed solution;

[0039] (3) Silica hollow nanospheres are added to cyclohexane, ultrasonically oscillated for 10 minutes, acrylate and toluene diisocyanate are added, ultrasonically oscillated for 10 minutes, then added to the mixture obtained in step (2), and then slowly added in sequence Triethylene glycol diacrylate, polyether acrylate, tetrahydrofuran acrylate and isobornyl methacrylate were stirred at a speed of 800r / min for 25 minutes to obtain an emulsion;

[0040](4) Mix ethylene glycol dimethacrylate, polypropyl...

Embodiment 2

[0053] A preparation process of optical glue for touch screen crack repair, the specific steps are as follows:

[0054] (1) Under the condition of avoiding light, mix and stir the ultraviolet photoinitiator, glycidyl methacrylate, and ethoxylated trimethylolpropane triacrylate at a mass ratio of 1:6:8 to obtain the first mixture, which is set aside ;

[0055] (2) The emulsifier is added to 50 times the weight of deionized water, and mixed evenly to obtain a mixed solution;

[0056] (3) Silica hollow nanospheres are added to cyclohexane, ultrasonically oscillated for 15 minutes, acrylate and toluene diisocyanate are added, ultrasonically oscillated for 12 minutes, then added to the mixture obtained in step (2), and then slowly added in sequence Triethylene glycol diacrylate, polyether acrylate, tetrahydrofuran acrylate and isobornyl methacrylate were stirred at a speed of 1000r / min for 30 minutes to obtain an emulsion;

[0057] (4) Mix ethylene glycol dimethacrylate, polyprop...

Embodiment 3

[0070] A preparation process of optical glue for touch screen crack repair, the specific steps are as follows:

[0071] (1) Under the condition of avoiding light, mix and stir the ultraviolet photoinitiator, glycidyl methacrylate, and ethoxylated trimethylolpropane triacrylate at a mass ratio of 1:5:8 to obtain the first mixture, which is set aside ;

[0072] (2) The emulsifier is added to 40 times the weight of deionized water, and mixed evenly to obtain a mixed solution;

[0073] (3) Silica hollow nanospheres are added to cyclohexane, ultrasonically oscillated for 15 minutes, acrylate and toluene diisocyanate are added, ultrasonically oscillated for 10 minutes, then added to the mixture obtained in step (2), and then slowly added in sequence Triethylene glycol diacrylate, polyether acrylate, tetrahydrofuran acrylate and isobornyl methacrylate were stirred at a speed of 1000r / min for 25 minutes to obtain an emulsion;

[0074] (4) Mix ethylene glycol dimethacrylate, polyprop...

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Abstract

The invention provides optical cement for repairing touch screen cracks and application thereof. Firstly, an ultraviolet light initiating agent and monomer of glycidyl methacrylate, ethoxylated trimethylolpropane triacrylate and the like are mixed to produce a first mixture, an emulgator is added into deionized water to obtain mixed liquid, then acrylate, toluene diisocynate, triethylene glycol diacrylate, polyether acrylate, tetrahydrofurfuryl acrylate, isobornyl methacrylate and the like are used as raw materials, the raw materials and the mixed liquid are mixed to produce prepolymer emulsion, then copolymer of ethylene glycol dimethacrylate, polypropylenglycol glycidyl ether, dibutyltin dilaurate, 2-methyl methacrylate and butyl acrylate is added to produce a second mixture, and finally, under a dark condition, the first mixture is slowly added into the second mixture to obtain the optical cement for repairing the touch screen cracks. After the touch screen cracks are repaired, theoriginal appearance of a touch screen is recovered, no crack traces are seen visually, the light transmittence is 99.5% or above, the viscosity is high, and a cure shrinkage rate is low.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an optical adhesive for repairing cracks in a touch screen and an application thereof. Background technique [0002] In recent years, with the wide application of electronic devices such as mobile phones, the development of touch screens is extremely rapid. The touch screen is relatively fragile, and it is very easy to be damaged due to bumps and cracks in daily use. The usual practice now is to replace a new touch screen, which requires professionals and professional equipment to replace it, which is time-consuming and expensive. Moreover, in many cases, the cracks of the touch screen are not serious, and direct replacement will undoubtedly cause a waste of resources. [0003] The special adhesive used for bonding transparent optical components, also known as optical adhesive, has higher requirements than ordinary adhesives. It should be colorless and transparent, with a lig...

Claims

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Application Information

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IPC IPC(8): C09J4/06C09J4/02C09J11/04C09J11/06C09J11/08C08G18/48C08G18/76
CPCC08G18/4883C08G18/7614C09J4/06C09J11/04C09J11/06C09J11/08
Inventor 胡云睿宋志国
Owner 浙江国能科技有限公司
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