Color-change indication thermosetting glue and color-change indication thermosetting conductive adhesive

A technology of thermosetting adhesives and conductive adhesives, applied in the direction of conductive adhesives, adhesives, epoxy resin glue, etc., can solve the problems of time lag, complicated detection process, and inability to immediately understand the degree of curing, so as to reduce production losses and timely Production status and the effect of saving testing costs

Inactive Publication Date: 2019-05-07
ZHENGYILONGHUA SPECIAL MATERIAL SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, after the thermosetting glue / conductive adhesive is cured, it must go through a series of functional tests (such as adhesion test, hardness test, UV-DSC detection) before it can be judged whether it is cured, that is to say, the existing thermosetting glue / conductive adhesive After curing, the degree of curing cannot be known immediately, and the analysis of the degree of curing is faced with defects such as time lag and complicated detection process

Method used

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  • Color-change indication thermosetting glue and color-change indication thermosetting conductive adhesive
  • Color-change indication thermosetting glue and color-change indication thermosetting conductive adhesive

Examples

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Effect test

Embodiment 1

[0050] A color-changing indicating thermosetting glue, the color-changing indicating thermosetting glue includes bisphenol A epoxy resin, methyltetrahydrophthalic anhydride, 4-dimethylaminopyridine, fumed silica anti-settling agent R972 and irreversible thermosensitive discoloration pigment.

[0051] The bisphenol A epoxy resin has a mass percentage range of 50% in the discoloration indicating thermosetting glue; the mass percentage content of the methyltetrahydrophthalic anhydride in the discoloration indicating thermosetting glue is 40% %; the mass percentage range of the 4-dimethylaminopyridine in the discoloration indicating thermosetting glue is 2%; the mass percentage range of the R972 in the discoloration indicating thermosetting glue is 2%; the The mass percent content range of the heat-sensitive color-changing pigment in the color-changing indicating thermosetting glue is 6%.

[0052] The curing temperature of the bisphenol A epoxy resin is about 130 degrees Celsius;...

Embodiment 2

[0054] Disclosed is a color-changing indicating thermosetting glue, which includes polyester polyol resin, polyurethane curing agent BL3175 SN, fumed silica anti-settling agent R972 and irreversible thermosensitive color-changing pigments.

[0055] The mass percentage range of the polyester polyol resin in the discoloration indicating thermosetting glue is 74%; the mass percentage content of the polyurethane curing agent BL3175 SN in the discoloration indicating thermosetting glue is 8%; The mass percentage range of the R972 in the color-changing indicating thermosetting glue is 2%; the mass percentage content of the heat-sensitive color-changing pigment in the color-changing indicating thermosetting glue is 6%.

[0056] The curing temperature of the polyester polyol resin is about 120 degrees Celsius; the color changing temperature of the heat-sensitive color-changing pigment is about 120 degrees Celsius.

Embodiment 3

[0058] A color-changing indicating thermosetting conductive glue, the color-changing indicating thermosetting glue includes bisphenol A epoxy resin, methyltetrahydrophthalic anhydride, 4-dimethylaminopyridine, fumed silica anti-settling agent R972, silver powder and irreversible Heat-sensitive color-changing pigments.

[0059] The bisphenol A epoxy resin has a mass percentage range of 10% in the discoloration indicating thermosetting glue; the mass percentage content of the methyltetrahydrophthalic anhydride in the discoloration indicating thermosetting glue is 7% %; the mass percentage range of the 4-dimethylaminopyridine in the discoloration indicating thermosetting glue is 0.5%; the mass percentage range of the R972 in the discoloration indicating thermosetting glue is 0.5%; the The mass percentage range of the silver powder in the color-changing indicating thermosetting glue is 80%; the mass percentage content of the heat-sensitive color-changing pigment in the color-chang...

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Abstract

A color-change indication thermosetting glue/conductive adhesive comprises resin and a thermosensitive color-change material which is an irreversible thermosensitive color-change material, the range of the curing temperature H of the epoxy resin is H1-H2, and the color-change temperature of the thermosensitive color-change material is L, wherein H1<=L<=H2. The color-change indication thermosettingglue/conductive adhesive is subjected to color change when the curing temperature is L so as to visually, rapidly and preliminarily determine whether the color-change indication thermosetting glue/conductive adhesive is completely cured or not.

Description

technical field [0001] The invention relates to a color-changing indicating thermosetting glue and a color-changing indicating thermosetting conductive adhesive. Background technique [0002] Generally, after the thermosetting glue / conductive adhesive is cured, it must go through a series of functional tests (such as adhesion test, hardness test, UV-DSC detection) before it can be judged whether it is cured, that is to say, the existing thermosetting glue / conductive adhesive The curing degree cannot be known immediately after curing, and the analysis of the curing degree faces defects such as time lag and complicated detection process. Contents of the invention [0003] In view of this, it is necessary to provide a color change indicating thermosetting adhesive / conductive adhesive, which changes color when fully cured. [0004] A color-changing indicating thermosetting glue, comprising epoxy resin, hardener, accelerator, anti-settling agent and heat-sensitive color-changi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J175/04C09J167/00C09J11/00C09J11/04C09J9/02
Inventor 郭俊宏
Owner ZHENGYILONGHUA SPECIAL MATERIAL SHENZHEN CO LTD
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