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Anti-dazzle self-repairing mobile phone screen protection film

A mobile phone screen, self-healing technology, applied in the field of mobile phone screen protective film, can solve the problems affecting the overall appearance, tarnish, and brittleness of mobile phones, achieve effective disulfide bond transfer ability, promote aromatic disulfide bond exchange, enhance The effect of mechanical robustness

Inactive Publication Date: 2021-06-11
赵敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, most mobile phones use full glass screens. Although the appearance of the mobile phone is more beautiful, it also makes the screen of the mobile phone more likely to be scratched, worn and tarnished during use, which affects the overall appearance of the mobile phone. At the same time, the mobile phone is exposed to sunlight. In the process of using under strong light, glare will appear due to mirror reflection, which will affect people's experience
[0003] At present, the mobile phone protective films used in the market are mainly made of polypropylene, polyvinyl chloride and PET. These materials have defects of varying degrees. Polypropylene has good stress crack resistance and high bending fatigue life, but It has post-shrinkage phenomenon, easy to age, become brittle, easy to deform, and has poor light transmittance. PVC also has the disadvantage of poor light transmittance. PET is often used in tempered film. Although it has good light transmittance, it is fragile.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of an anti-glare self-repairing mobile phone screen protective film, comprising the steps of:

[0030] (1) Heat 70 parts of dehydrated polytetramethylene ether glycol to 70°C to make it into a molten state, and mix it with 9 parts of 2,2-bis(hydroxymethyl)propionic acid under vacuum at 40°C, Stirring time 30min, after the mixing is completed, add 22 parts of isophorone diisocyanate to the mixture and continue to stir for 1.5h under nitrogen protection, add 3 parts of methyl ethyl ketone and 2 parts of dibutyltin dilaurate after the stirring is finished, and Heat the mixture to 50°C and gradually add 8 parts of aromatic disulfide to the mixed solution and stir for 1 hour. After the reaction is completed and cooled to room temperature, add dimethylformamide dropwise and continue stirring for 2 hours. Put it in a vinyl mold, put it in a vacuum oven at 80°C for 24 hours under normal pressure to remove dimethylformamide, and finally dry it under vacuum a...

Embodiment 2

[0037] A preparation method of an anti-glare self-repairing mobile phone screen protective film, comprising the steps of:

[0038] (1) Heat 60 parts of dehydrated polytetramethylene ether glycol to 70°C to make it into a molten state and mix it with 8 parts of 2,2-bis(hydroxymethyl)propionic acid at 40°C under vacuum condition to mix evenly, Stirring time 30min, after the mixing is completed, add 20 parts of isophorone diisocyanate to the mixture and continue to stir for 1.5h under the protection of nitrogen, add 2 parts of butanone and 4 parts of dibutyltin dilaurate after the stirring is finished, and Heat the mixture to 50°C and gradually add 9 parts of aromatic disulfide to the mixed solution and stir for 1 hour. After the reaction is completed and cooled to room temperature, add dimethylformamide dropwise and continue stirring for 2 hours. Put it in a vinyl mold, put it in a vacuum oven at 80°C for 24 hours under normal pressure to remove dimethylformamide, and finally dr...

Embodiment 3

[0045]A preparation method of an anti-glare self-repairing mobile phone screen protective film, comprising the steps of:

[0046] (1) Heat 80 parts of dehydrated polytetramethylene ether glycol to 70°C to make it into a molten state and mix it with 12 parts of 2,2-bis(hydroxymethyl)propionic acid at 40°C under vacuum condition to mix evenly, Stirring time 30min, after the mixing is completed, add 25 parts of isophorone diisocyanate to the mixture and continue to stir for 1.5h under the protection of nitrogen, add 4 parts of butanone and 5 parts of dibutyltin dilaurate after stirring, and Heat the mixture to 50°C and gradually add 10 parts of aromatic disulfide to the mixed solution and stir for 1 hour. After the reaction is completed and cooled to room temperature, add dimethylformamide dropwise and continue stirring for 2 hours. Put it into a vinyl mold, put it in a vacuum oven at 80°C for 24 hours under normal pressure to remove dimethylformamide, and finally dry it under va...

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Abstract

The invention discloses an anti-dazzle self-repairing mobile phone screen protection film. The anti-dazzle self-repairing mobile phone screen protection film is prepared from the following raw materials: a self-repairing polyurethane elastomer, low-density polyethylene, PMMA (Polymethyl Methacrylate), nano silicon oxide, an ultraviolet light absorber, a surfactant, an antioxidant, a flame retardant, a cross-linking agent and a flatting agent. The obtained anti-dazzle self-repairing mobile phone screen protection film has excellent anti-dazzle and self-repairing capabilities and long service life, the ultimate tensile strength of the anti-dazzle self-repairing mobile phone screen protection film reaches 11.5 MPa, the elongation at break of the anti-dazzle self-repairing mobile phone screen protection film can reach 374%, a mobile phone screen can be effectively protected and prevented from being broken, and the anti-dazzle self-repairing mobile phone screen protection film has good light permeability and clear display effect while preventing dazzle.

Description

technical field [0001] The invention relates to the field of mobile phone screen protective films, in particular to a method for manufacturing an anti-glare self-repairing mobile phone screen protective film Background technique [0002] In today's society, mobile phones have become an indispensable tool in human life, and with the increasing frequency of use of mobile phones in various occasions and the continuous improvement of mobile phone performance, some problems have gradually emerged. Nowadays, most mobile phones use full glass screens. Although the appearance of the mobile phone is more beautiful, it also makes the screen of the mobile phone more likely to be scratched, worn and tarnished during use, which affects the overall appearance of the mobile phone. At the same time, the mobile phone is exposed to sunlight. In the process of using under strong light, glare will appear due to mirror reflection, which will affect people's use experience. [0003] At present, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L23/06C08L33/12C08K3/36C08K13/02C08K5/3475C08K5/526C08J5/18C08G18/75C08G18/66C08G18/48C08G18/38C08G18/34
CPCC08J5/18C08G18/755C08G18/6685C08G18/6692C08G18/4854C08G18/348C08G18/3863C08J2375/08C08J2423/06C08J2433/12C08K3/36C08K2201/011C08K13/02C08K5/3475C08K5/526
Inventor 赵敏
Owner 赵敏
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