Color-changing indicating error-proofing UV electronic adhesive and preparation method thereof

An adhesive and error proofing technology, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problem of error proofing in production lines, achieve large difference in chromaticity, reasonable composition, and improve correct production. effect of ability

Active Publication Date: 2014-03-19
连云港华海诚科电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to solve the problem of error prevention in the production line when using UV glue to assemble electronic products. Discoloration Indication of Mistake Proof UV Electronic Adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, a color-changing indication and error-proof UV electronic adhesive, the raw materials and weight ratios of the adhesive include:

[0026] UV resin 20; Initiator 0.5; Discoloration agent 0.5;

[0027] The UV resin is selected from one or a combination of acrylic modified polyurethane, epoxy modified acrylate, UV silicone rubber resin, and cycloaliphatic epoxy resin;

[0028] The initiator is selected from one or a combination of free radical photoinitiators, free radical thermal initiators, and ionic initiators;

[0029] The color-changing agent is selected from photochromic polymers containing sulfur carbazone complex structures, photochromic polymers containing azobenzene structures, photochromic macromolecules containing spirobenzopyran structures, redox-type One or a combination of photochromic polymers.

Embodiment 2

[0030] Example 2, a color-changing indication and error-proof UV electronic adhesive, the raw materials and weight ratios for making the adhesive include:

[0031] UV resin 80; Initiator 3; Discoloration agent 5;

[0032] The UV resin is selected from one or a combination of acrylic modified polyurethane, epoxy modified acrylate, UV silicone rubber resin, and cycloaliphatic epoxy resin;

[0033] The initiator is selected from one or a combination of free radical photoinitiators, free radical thermal initiators, and ionic initiators;

[0034] The color-changing agent is selected from photochromic polymers containing sulfur carbazone complex structures, photochromic polymers containing azobenzene structures, photochromic macromolecules containing spirobenzopyran structures, redox-type One or a combination of photochromic polymers.

Embodiment 3

[0035] Embodiment 3, a color-changing indication and error-proof UV electronic adhesive, the raw materials and weight proportions of the adhesive include:

[0036] UV resin 50; Initiator 1; Discoloration agent 2;

[0037] The UV resin is selected from one or a combination of acrylic modified polyurethane, epoxy modified acrylate, UV silicone rubber resin, and cycloaliphatic epoxy resin;

[0038] The initiator is selected from one or a combination of free radical photoinitiators, free radical thermal initiators, and ionic initiators;

[0039] The color-changing agent is selected from photochromic polymers containing sulfur carbazone complex structures, photochromic polymers containing azobenzene structures, photochromic macromolecules containing spirobenzopyran structures, redox-type One or a combination of photochromic polymers.

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PUM

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Abstract

The invention discloses a color-changing indicating error-proofing UV electronic adhesive. The color-changing indicating error-proofing UV electronic adhesive comprises following raw materials, by weight, 20 to 80 parts of a UV resin, 0.5 to 3 parts of an initiator, and 0.5 to 5 parts of a color-changing agent; the UV resin is selected from acrylic acid modified polyurethane, epoxy modified acrylate, UV silicone rubber resin, and epoxy resin of cyclic ester group; the initiator is selected from a free radical photoinitiator and a free radical thermal initiator; the color-changing agent is selected from a photochromic polymer with a thiocarbazone coordination compound structure, a photochromic high-molecular compound with an azobenzene structure, a photochromic high-molecular compound with a spirobenzopyran structure, and the like. The invention also discloses a preparation method of the color-changing indicating error-proofing UV electronic adhesive. Color of the color-changing indicating error-proofing UV electronic adhesive before solidification is stable; and difference of the color of the color-changing indicating error-proofing UV electronic adhesive before and after solidification is obvious, so that in production lines, it is possible to quickly identify that whether solidification of the color-changing indicating error-proofing UV electronic adhesive is realized, whether adhesive dispense positions are appropriate, and whether adhesive thixotropic response is induced. In addition, it is possible for direct determination of adhesive stability by associating color with adhesive solidification degree.

Description

technical field [0001] The invention relates to a UV glue, in particular to a color-changing indication error-proof UV electronic adhesive, and also relates to a preparation method of the adhesive. Background technique [0002] UV glue is also called photosensitive glue and ultraviolet curing glue. UV glue refers to a type of adhesive that must be cured by ultraviolet light. It can be used as an adhesive or as a glue for paints, coatings, and inks. UV is the abbreviation of Ultraviolet Rays in English, that is, ultraviolet light. Ultraviolet (UV) is invisible to the naked eye. It is a section of electromagnetic radiation other than visible light, with a wavelength in the range of 10-400nm. The curing principle of the shadowless adhesive is that the photoinitiator (or photosensitizer) in the UV curing material absorbs ultraviolet light under the irradiation of ultraviolet light to generate active free radicals or cations, which initiate monomer polymerization, crosslinking a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J163/10C09J163/00C09J183/04C09J11/00C09J11/08C09J11/04C09J11/06
Inventor 谢雷季青秦苏琼陶军陈慧韩江龙王志孙勇张永成李兰侠谢青
Owner 连云港华海诚科电子材料有限公司
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