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Pressure-sensitive adhesive protection film for mobile phone screen and preparation method of pressure-sensitive adhesive protection film

A pressure-sensitive adhesive protective film, mobile phone screen technology, applied in the field of pressure-sensitive adhesives, can solve the problems of poor moisture and heat resistance, wrinkle, not easy to tear, etc., achieves good moisture and heat resistance, easy peeling, and increased cohesive strength. Effect

Inactive Publication Date: 2019-04-09
无锡市上都新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common pressure-sensitive adhesives on the market have poor moisture and heat resistance after pasting on the surface of the mobile phone glass screen, appearing wrinkles, not easy to tear, and even have defects such as residual glue.

Method used

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  • Pressure-sensitive adhesive protection film for mobile phone screen and preparation method of pressure-sensitive adhesive protection film
  • Pressure-sensitive adhesive protection film for mobile phone screen and preparation method of pressure-sensitive adhesive protection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Weigh 10g of methyl acrylate, 6g of decyl acrylate, 12g of tridecyl methacrylate, 2.5g of acrylic acid, 2.5g of 4-hydroxybutyl acrylate, vinyl tris(2-methoxyethoxy) Silane 2g, ethyl acetate 65g and azobisisobutyronitrile 0.175g.

[0032] Add 10g of methyl acrylate, 6g of decyl acrylate, 12g of tridecyl methacrylate, 2.5g of acrylic acid, 2.5g of 4-hydroxybutyl acrylate, and 2g of vinyl tris(2-methoxyethoxy)silane into the reaction Mix well in the container, add 42.25g (65%) ethyl acetate and mix until completely dissolved, then heat to 80°C, then add 0.07g (40%) azobisisobutyronitrile to react;

[0033] (2) After mixing 9.75g (15%) ethyl acetate and 0.06g (35%) azobisisobutyronitrile evenly, slowly add it dropwise to the mixed solution of step (1), the control time is 1.5h, drop Carry out insulation reaction after adding, and the time is 2h;

[0034] (3) Add the remaining 0.045 g of azobisisobutyronitrile and the remaining 13 g of ethyl acetate to the mixed soluti...

Embodiment 2

[0038] (1) Weigh 3g of methyl acrylate, 1g of isobutyl methacrylate, 16.5g of butyl acrylate, 13g of lauryl methacrylate, 0.5g of acrylic acid, 0.5g of 2-hydroxy acrylate, vinyl tris(2-methyl 0.5 g of oxyethoxy) silane, 65 g of toluene and 0.035 g of azobisisobutyronitrile.

[0039] Methyl acrylate 3g, isobutyl methacrylate 1g, butyl acrylate 16.5g, lauryl methacrylate 13g, acrylic acid 0.5g, 2-hydroxy acrylate 0.5g, vinyl tris(2-methoxyethoxy Add 0.5 g of silane into the reaction vessel and mix evenly, add 29.25 g (45%) of toluene and mix until completely dissolved, then heat to 66°C, then add 0.01 g (30%) of azobisisobutyronitrile for reaction;

[0040] (2) After mixing 16.25g (25%) toluene and 0.007g (20%) azobisisobutyronitrile evenly, slowly add it dropwise to the mixed solution of step (1), the control time is 0.5h, and the dropwise addition ends Carry out insulation reaction afterward, the time is 2h;

[0041] (3) Add the remaining 0.018 g of azobisisobutyronitrile an...

Embodiment 3

[0045](1) Weigh 5g of methyl acrylate, 2g of cyclohexyl methacrylate, 16g of butyl acrylate, 8g of decyl methacrylate, 1.5g of acrylic acid, 1.5g of caprolactone acrylate, r-(methacryloyl 1 g of oxy)propyltrimethoxysilane, 5 g of acetone, 15 g of toluene, 45 g of ethyl acetate, and 0.105 g of azobisisobutyronitrile.

[0046] Methyl acrylate 5g, cyclohexyl methacrylate 2g, butyl acrylate 16g, decyl methacrylate 8g, acrylic acid 1.5g, caprolactone acrylate 1.5g, r-(methacryloxy)propyl Add 1g of trimethoxysilane into the reaction vessel and mix evenly, add 8.25g (55%) toluene, 24.75g (55%) ethyl acetate, 2.75g (55%) acetone and mix until completely dissolved, then heat to 66°C, and then Add 0.04g (35%) azobisisobutyronitrile to react;

[0047] (2) After mixing 3g (20%) toluene, 9g (20%) ethyl acetate, 1g (20%) acetone and 0.03g (28%) azobisisobutyronitrile, slowly add it dropwise to step (1 ) in the mixed solution, the control time is 1h, and the insulation reaction is carried ...

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Abstract

The invention discloses a pressure-sensitive adhesive protection film for a mobile phone screen and a preparation method of the pressure-sensitive adhesive protection film. Raw materials of the pressure-sensitive adhesive protection film for the mobile phone screen, disclosed by the invention, comprise two components A and B; the component A comprises the components in percentage by weight: 4-10%of hard monomer, 18-29.5% of soft monomer, 1-5% of functional monomer, 0.5-2% of silicon monomer, 65% of solvent and an initiator accounting for 0.1-0.5% of the total weight of the hard monomer, the soft monomer, the functional monomer and the silicon monomer; and the component B is a curing agent accounting for 0.5-3% of the total weight of the component A. The pressure-sensitive adhesive protection film for the mobile phone screen, disclosed by the invention, is very good in initial adhesion and wet-heat resistance, incapable of remaining fog-shaped adhesive marks on the surface of a glass screen of a mobile phone under a wet-heat condition, stable in performance and capable of use for a long time.

Description

technical field [0001] The invention relates to the field of pressure-sensitive adhesives, in particular to a pressure-sensitive adhesive protective film for mobile phone screens and a preparation method thereof. Background technique [0002] The full name of pressure-sensitive adhesive is pressure-sensitive adhesive, commonly known as self-adhesive, its bonding process is very convenient, as long as you apply a little pressure or press it lightly with your fingers, it can be bonded, and it does not need to be used in this process. The action of great pressure, heat or solvents. Therefore, the pressure-sensitive adhesive is called a self-adhesive substance, which is mainly bonded to the surface of the adherend by van der Waals force, and there is no physical and chemical change during the bonding process. Pressure-sensitive adhesive has four main characteristics: ①The bonding process is easy to carry out; ②It is relatively easy to peel off; ③When the pressure-sensitive adhe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/24C09J7/38C08F220/18C08F220/06C08F220/20C08F230/08C08F220/14C09J133/10
CPCC08F220/18C08F220/1812C08F220/1818C09J7/243C09J7/385C09J133/10C09J2301/122C09J2301/302C09J2301/312C09J2301/414C09J2423/046C08F220/14C08F220/1811C08F220/06C08F220/20C08F230/08C08F220/1804
Inventor 陈国荣邹婷婷丁荣炎吴秋心白永平李晶波殷晓芬
Owner 无锡市上都新材料科技有限公司
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