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Coating for replacing electronic product screen protection film and preparation method

A technology for electronic products and coatings, applied in polyester coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as inability to remove well, unsatisfactory protection effect, etc., and achieve good light transmittance, good flexibility, resistance to Good abrasive effect

Inactive Publication Date: 2021-07-16
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the unsatisfactory protective effect when the current paint replaces the screen protector film, and at the same time, the defects that cannot be removed well during replacement, the present invention proposes a paint and a preparation method for replacing the screen protector film of electronic products, thereby realizing the effective replacement of the screen protector by paint. Also easy to replace

Method used

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  • Coating for replacing electronic product screen protection film and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Mix 35kg PET and 70kg SBS evenly, then knead and extrude through a screw extruder to granulate, then pulverize through a jet mill, and discharge to obtain a composite powder with an average particle size of 6 μm;

[0037] (2) Add 100kg of composite powder into a high-speed mixer, then stir at a constant temperature and high speed, control the temperature at 100°C, control the speed at 1300rpm, stir for 8 minutes, then spray 2kg of ammonia water and 10kg of perhydropolysilazane in sequence, and continue stirring for 25 minutes. Discharging to obtain surface-treated composite powder;

[0038] (3) Mix 12.kg of surface-treated composite powder, 0.8kg of polytetrafluoroethylene powder, 45kg of polyurethane acrylate, and 0.15kg of BYK-333 leveling agent from Germany BYK at high speed, and then add 11kg of tripropylene glycol diacrylate , 1.5kg of α,α'-diethoxyacetophenone, dispersed evenly, and then filled with shading, to obtain a paint that can replace the screen protec...

Embodiment 2

[0040] (1) Mix 35kg PET and 70kg SBS evenly, then knead, extrude and granulate through a screw extruder, then pulverize through a jet mill, and discharge to obtain a composite powder with an average particle size of 3 μm;

[0041] (2) Add 100kg of composite powder into a high-speed mixer, then stir at a constant temperature and high speed, control the temperature at 98°C, and control the speed at 1250rpm, stir for 9 minutes, then spray 1.5kg of ammonia water and 7kg of perhydropolysilazane in sequence, and continue stirring for 22 minutes , discharging to obtain surface-treated composite powder;

[0042] (3) Stir 11kg of surface-treated composite powder, 0.6kg of polytetrafluoroethylene powder, 48kg of polyurethane acrylate, and 0.12kg of BYK-306 leveling agent from Germany BYK at high speed, and then add 10.5kg of tripropylene glycol diacrylate, 1.2kg of 2-hydroxy-2-methyl-1-phenylacetone, dispersed evenly, and then filled with shading, can get a kind of coating that replaces...

Embodiment 3

[0044] (1) Mix 35kg PET and 70kg SBS evenly, then knead, extrude and granulate through a screw extruder, then pulverize through a jet mill, and discharge to obtain a composite powder with an average particle size of 9 μm;

[0045] (2) Add 100kg of composite powder into a high-speed mixer, then stir at a constant temperature and high speed, control the temperature at 102°C, and control the speed at 1350rpm, stir for 7 minutes, then spray 2.5kg of ammonia water and 12kg of perhydropolysilazane in sequence, and continue stirring for 28 minutes , discharging to obtain surface-treated composite powder;

[0046] (3) Stir 14kg of surface-treated composite powder, 0.9kg of polytetrafluoroethylene powder, 42kg of polyurethane acrylate, and 0.18kg of German BYK leveling agent BYK-310 at high speed, and then add 11.5kg of tripropylene glycol diacrylate, 1.8kg of 1-hydroxycyclohexyl phenyl ketone, dispersed evenly, and then filled with shading, can obtain a kind of coating that replaces t...

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Abstract

The invention relates to the technical field of functional coatings, and provides a coating for replacing an electronic product screen protection film and a preparation method thereof.The coating is prepared by uniformly stirring surface-treated composite powder, polytetrafluoroethylene powder, urethane acrylate and a flatting agent at a high speed, then adding a reactive diluent and a photoinitiator, and uniformly dispersing; and the surface-treated composite powder is prepared by the following steps: mixing PET and SBS, extruding and granulating, crushing to obtain composite powder, stirring at a high speed at a constant temperature, and sequentially spraying ammonia water and perhydropolysilazane for stirring. The coating provided by the invention has the excellent characteristics of high hardness, good flexibility, no cracking, wear resistance, drop resistance and the like, has a release effect, can be integrally peeled off for re-coating, is convenient to replace, is hydrophobic and oleophobic, is clean and stain-resistant, and can well replace a current electronic product screen protection film.

Description

technical field [0001] The invention relates to the technical field of functional coatings, in particular to a coating and a preparation method for replacing screen saver films of electronic products. Background technique [0002] With the development of the Internet and the electronic and electrical industry, more and more people pay more and more attention to the protection of the screen surface of electronic products. After people buy new mobile phones, tablets and other electronic products, they need to protect the screen for good protection. The commonly used protective materials are mainly film. The materials of electronic screen protective film usually include PP material, PVC material, PET material, AR material, PE material, OPP material, etc. In recent years, there have been more and more researches on electronic screen protective materials. [0003] At present, commonly used screen protectors are mainly made of PET and tempered glass. The film made of PET is high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D5/20C09D7/65C09D127/18C09D167/02C09D153/02C08J3/12C08L67/02C08L53/02
CPCC08J3/128C08J2353/02C08J2467/02C08L2201/10C09D5/20C09D175/14C09D7/65C09D7/70C08L67/02C08L53/02C08L27/18
Inventor 曾军堂陈庆司文彬李钧
Owner CHENDU NEW KELI CHEM SCI CO LTD
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