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Visible light-cured adhesive and application thereof

An adhesive and visible light technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problems of high equipment cost, harsh curing conditions, high production cost, etc., and achieve low application cost and self-leveling Good effect and reduced application cost

Inactive Publication Date: 2019-08-16
GUANGDONG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light-curing adhesives used in the prior art generally need to be cured by UV light (ultraviolet light), the curing conditions are relatively harsh, and the equipment cost is high, which also leads to the disadvantage of high production cost.

Method used

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  • Visible light-cured adhesive and application thereof
  • Visible light-cured adhesive and application thereof
  • Visible light-cured adhesive and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A visible light-curable adhesive, in parts by weight, comprising the following components:

[0033]

[0034] The functionality of the urethane acrylate is 2.

[0035] The photoinitiator is 2,4,6-trimethylbenzoyldiphenylphosphine oxide.

[0036] The photocurable monomer is 20 parts of tripropylene glycol acrylate and 27 parts of trimethylolpropane trimethacrylate.

[0037] A preparation method of visible light curing adhesive, comprising the following steps:

[0038] Stir and mix aliphatic urethane acrylate, photocurable monomer, photoinitiator, leveling agent, defoamer and silane coupling agent at 20° C. for 35 minutes to prepare the visible light curable adhesive.

[0039] A mobile phone screen, from top to bottom, sequentially includes a glass cover plate, the visible light curing adhesive and a display screen.

[0040] The preparation process of the mobile phone screen is as follows: wipe the display screen of the mobile phone clean with a cleaning cloth, drop ...

Embodiment 2

[0042] A visible light-curable adhesive, in parts by weight, comprising the following components:

[0043]

[0044] The functionality of the urethane acrylate is 3.

[0045] A preparation method of visible light curing adhesive, comprising the following steps:

[0046] Stir and mix aliphatic urethane acrylate, photocurable monomer, photoinitiator, leveling agent, defoamer and silane coupling agent at 30° C. for 40 minutes to prepare the visible light curable adhesive.

[0047] A mobile phone screen, from top to bottom, sequentially includes a glass cover plate, the visible light curing adhesive and a display screen.

[0048] The preparation process of the mobile phone screen is as follows: wipe the display screen of the mobile phone clean with a cleaning cloth, drop the visible light-curable adhesive to the middle of the display screen surface, the amount of visible light-curable adhesive is 5ml, and then gently put the glass cover on until The visible light-curable adhes...

Embodiment 3

[0050] A visible light-curable adhesive, in parts by weight, comprising the following components:

[0051]

[0052]

[0053] The photoinitiator is 0.5 part of 2,4,6-trimethylbenzoyl diphenylphosphine oxide, and 0.5 part of aminophosphoramide acrylate.

[0054] The photocurable monomer is 10 parts of acryloylmorpholine, 5 parts of lauryl methacrylate, and 5 parts of polyethylene glycol diacrylate.

[0055] A preparation method of visible light curing adhesive, comprising the following steps:

[0056] Stir and mix polyurethane acrylate, photocurable monomer, photoinitiator, leveling agent, defoamer and silane coupling agent at 15°C for 40 minutes to prepare the visible light curable adhesive.

[0057] A mobile phone screen, from top to bottom, sequentially includes a glass cover plate, the visible light curing adhesive and a display screen.

[0058]The visible light-curable adhesive is applied between the display screen and the glass cover to better protect the display s...

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Abstract

The invention discloses a visible light-cured adhesive, which comprises the following ingredients (by weight): 20-65 parts of polyurethane acrylate, 15-70 parts of a light-cured monomer, 1-8 parts ofa photoinitiator, 0.2-8 parts of a leveling agent, 0.1-5 parts of an antifoaming agent and 0.2-4 parts of a coupling agent. The photoinitiator is an organic phosphine photoinitiator. The visible light-cured adhesive can be cured under visible light, and the curing process is very convenient. When being applied between a display screen and a glass cover plate, the visible light-cured adhesive has agood self-leveling effect, is easy to discharge foams, has an adhesion effect, and makes the glass cover plate and the display screen to be tightly combined and improves wear resistance. In addition,the visible light-cured adhesive has low application cost. In comparison with the application cost of a traditional UV photocureable adhesive, the application cost of the visible light-cured adhesiveis greatly reduced.

Description

technical field [0001] The invention belongs to the field of light-curable adhesives, in particular to a visible light-curable adhesive and its application. Background technique [0002] Mobile phone screen protection usually uses film to protect the mobile phone display, but the result of film protection is poor wear resistance and serious air bubbles. With the popularity of full screens, film protection can no longer meet the visual effect requirements of full screens. Therefore, in the present technology, a glass cover plate is gradually adopted on the screen of the mobile phone for protection. Usually, a layer of light-curing adhesive is coated on the cleaned mobile phone screen, and then a glass cover is covered on the surface of the adhesive to protect the screen. The light-curing adhesives used in the prior art generally need to be cured by UV light (ultraviolet light), the curing conditions are relatively harsh, and the equipment cost is high, which also leads to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J11/06
CPCC09J11/06C09J175/14C08L71/02C08K5/54
Inventor 周盾白黄华君
Owner GUANGDONG INST OF SCI & TECH
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