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UV curing liquid optical glue and its preparation method and application

An optical glue, liquid technology, used in adhesives, polyether adhesives, adhesive types, etc., can solve problems such as overflowing glue, and achieve the effects of easy operation, excellent defoaming performance, and low cost

Active Publication Date: 2019-06-28
DONGGUAN POWERBOND NEW MATERIALS TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly solves the problem of glue overflow in the full lamination process of ordinary liquid optical glue applied to touch screen (TP) and liquid crystal display module (LCM)

Method used

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  • UV curing liquid optical glue and its preparation method and application
  • UV curing liquid optical glue and its preparation method and application
  • UV curing liquid optical glue and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1: According to the components and weight ratios in the following table, a UV-curable liquid optical adhesive was prepared. Accurately weigh 50g aliphatic polyurethane modified acrylate, 20g tackifying resin A, 20g isobornyl acrylate, 7g hydroxyethyl acrylate, 1g 1-hydroxycyclohexyl phenyl ketone, 1g TEGO Airex931, 0.1g BYK -D410, 1g γ-mercaptopropyltriethoxysilane, put all the above-mentioned materials weighed in a planetary vacuum mixer in a thousand-level dust-free workshop, control the temperature at 40-50°C, stir and mix evenly, and mix the obtained glue After the material is filtered and degassed, the finished UV-curable liquid optical adhesive is obtained.

[0060]

Embodiment 2

[0061] Embodiment 2: Prepare UV-curable liquid optical adhesive according to the ratio in the table below. Its preparation method is identical with embodiment 1.

[0062]

[0063]

Embodiment 3

[0064] Example 3: Prepare UV-curable liquid optical adhesive according to the ratio in the following table, and the preparation method is the same as that in Example 1 or 2.

[0065]

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Abstract

The invention discloses UV curing liquid optical cement. The UV curing liquid optical cement is prepared from, by weight, 20-70 parts of active oligomer, 10-50 parts of tackifying resin, 10-40 parts of reactive diluent, 0.3-5 parts of photoinitiator and 1-5 parts of additive. The tackifying resin has a unique molecular structural formula. A preparation method of the UV curing liquid optical cement comprises the steps that the active oligomer, the tackifying resin, the reactive diluent, the photoinitiator and the additive are placed in a planetary vacuum mixer and are stirred and mixed to be uniform, and a finished product is obtained through filtering and defoaming. The problem of cement overflow that common liquid optical cement cannot overcome and the problem that the common liquid optical cement is not suitable for the special lamination process of UV precuring, lamination and UV curing for cement overflow prevention are solved, a cement film formed by the UV curing liquid optical cement has moderate bonding strength and a good locating effect, the bonding strength is greatly improved after UV curing is carried out again, the surface of the cement film is very smooth, a certain edge shape is kept, and no edge collapse phenomenon occurs; the UV curing liquid optical cement is suitable for automatic equipment coating and especially suitable for full lamination of modules.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a UV-curable liquid optical adhesive and a preparation method and application thereof. Background technique [0002] With the development of the times and the advancement of science and technology, digital electronic products have become an indispensable and important product in people's lives; and most of these products have become necessary tools for people's daily life and work; such as mobile phones, tablets, Notebook etc. With the trend of the market, consumers have higher and higher requirements for the performance and quality of these products. Among them, the touch display screen, as an important medium of human-computer interaction, is the key to the popularity of electronic products such as mobile phones and tablets. one of the elements. [0003] In the bonding process of the LCD touch screen, the bonding of the touch screen (TP) and the liquid crystal display modul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/14C09J147/00C09J133/14C09J163/10C09J171/00C09J133/08C09J133/10
Inventor 黄战光吴博胡联灵舒小辉张小中刘兆辉
Owner DONGGUAN POWERBOND NEW MATERIALS TECH DEV
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