Ultraviolet curing type adhesive as well as preparation method and application thereof

A curing type, adhesive technology, used in adhesives, adhesive additives, chemical industry and other directions, can solve the problems of alkali resistance to be improved, unable to meet the requirements of thinner and lighter display devices, etc., and achieve excellent adhesion and low shrinkage. , the effect of uniform color

Active Publication Date: 2020-12-11
DONGGUAN POWERBOND NEW MATERIALS TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adhesive uses a composite system of epoxy resin and urethane acrylate, which also has a strong sealing ability, but it still cannot meet the needs of lighter and thinner display devices, and the alkali resistance needs to be improved

Method used

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  • Ultraviolet curing type adhesive as well as preparation method and application thereof
  • Ultraviolet curing type adhesive as well as preparation method and application thereof
  • Ultraviolet curing type adhesive as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] This embodiment provides a UV-curable adhesive. The raw materials for the preparation of the UV-curable adhesive include the following components in parts by weight:

[0060]

[0061] The preparation method of the ultraviolet curable adhesive described in this embodiment comprises the following steps:

[0062] (1) Mix acrylic oligomer, epoxy-modified acrylic oligomer, reactive diluent and photoinitiator according to the above formula, first stir and disperse at a speed of 400r / min for 5min, and then stir and disperse at a speed of 800r / min 60min, obtain mixture;

[0063] (2) Mix the mixture obtained in step (1), the silane coupling agent and the coloring material according to the above formula, stir and disperse for 20 minutes at a speed of 800r / min, filter with a 400-mesh filter cloth, and let it stand for defoaming after filtering , to obtain the UV-curable adhesive.

Embodiment 2

[0065] This embodiment provides a UV-curable adhesive. The raw materials for the preparation of the UV-curable adhesive include the following components in parts by weight:

[0066]

[0067] The preparation method of the ultraviolet curable adhesive described in this embodiment comprises the following steps:

[0068] (1) Mix acrylic oligomer, epoxy-modified acrylic oligomer, reactive diluent and photoinitiator according to the above formula, first stir and disperse at a speed of 400r / min for 5min, and then stir and disperse at a speed of 800r / min 60min, obtain mixture;

[0069] (2) Mix the mixture obtained in step (1), the silane coupling agent and the coloring material according to the above formula, stir and disperse for 20 minutes at a speed of 800r / min, filter with a 400-mesh filter cloth, and let it stand for defoaming after filtering , to obtain the UV-curable adhesive.

Embodiment 3

[0071] This embodiment provides a UV-curable adhesive. The raw materials for the preparation of the UV-curable adhesive include the following components in parts by weight:

[0072]

[0073] The preparation method of the ultraviolet curable adhesive described in this embodiment comprises the following steps:

[0074] (1) Mix acrylic oligomer, epoxy-modified acrylic oligomer, reactive diluent and photoinitiator according to the above formula, first stir and disperse at a speed of 400r / min for 5min, and then stir and disperse at a speed of 800r / min 60min, obtain mixture;

[0075] (2) Mix the mixture obtained in step (1), the silane coupling agent and the coloring material according to the above formula, stir and disperse for 20 minutes at a speed of 800r / min, filter with a 400-mesh filter cloth, and let it stand for defoaming after filtering , to obtain the UV-curable adhesive.

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Abstract

The invention provides an ultraviolet curing type adhesive as well as a preparation method and application thereof. The ultraviolet curing type adhesive comprises the following preparation raw materials in parts by weight: 30-55 parts of acrylic acid oligomer, 5-20 parts of epoxy modified acrylic acid oligomer, 30-50 parts of a reactive diluent, 0.5-3 part of a silane coupling agent, 2-5 parts ofa photoinitiator and 0.2-1 part of a pigment. the acrylic acid oligomer comprises polyether polyurethane methacrylate and/or polyurethane acrylate. The ultraviolet curing type adhesive disclosed by the invention is proper in adhesive film hardness, excellent in acid and alkali resistance and mechanical property, capable of enabling glass to be thinned to be thicker, convenient in adhesive removal,simple in preparation process and good in stability.

Description

technical field [0001] The invention belongs to the field of liquid crystal adhesives, and in particular relates to an ultraviolet curable adhesive and its preparation method and application. Background technique [0002] In recent years, display devices have been developing in the direction of lightness, lightness, and power saving. As a liquid crystal display, thin-film transistor liquid crystal display (TFT-LCD) is one of the most widely used flat-panel displays at present. light features. With the development of LCD technology, desktop LCD monitors, notebook monitors, smart phones and large-size LCD TVs are becoming more and more popular. In order to cope with the development trend of thinning various types of LCD displays, production lines have been successively invested in the production of thinner products. In the light and thin manufacturing process of TFT-LCD, the thickness reduction of the liquid crystal glass substrate is a crucial part. From the perspective of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J163/10C09J11/06
CPCC09J175/14C09J11/06C08L2205/025C08L2205/03C08L75/14C08L63/10C08K5/5435C08K5/5425Y02P20/10
Inventor 蔡海建张亚平舒小辉吴金佑刘兆辉
Owner DONGGUAN POWERBOND NEW MATERIALS TECH DEV
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