Medium-temperature and quickly-cured colorless transparent epoxy resin curing agent and preparation method thereof

A transparent epoxy resin and epoxy resin curing technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of electronic components damage, hard and brittle texture, lead wire breakage, etc., to improve insulation resistivity, High insulation resistivity and the effect of improving toughness

Inactive Publication Date: 2012-02-08
舒城金泽信环保材料有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Among the colorless, transparent and medium-temperature curing epoxy resin curing agents used at home and abroad, triethanolamine is the most chosen one. After it is mixed with epoxy resin, it becomes a colorless and transparent gel-like liquid, which can be cured for 2-3 hours at 100°C. It is completely cured, but its texture is hard and brittle. If it is used as an electronic irrigation material, the internal stress caused by hard and brittle is too large, which often causes damage to electronic components or breaks the lead wires. The Achilles' heel of brittleness and breakage has not been widely used

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] A kind of colorless and transparent epoxy resin curing agent of fast curing at medium temperature, the parts by weight of its components are:

[0024] Triethanolamine 60

[0025] Propylene carbonate 28

[0026] Ethylenediamine 12 .

[0027] The preparation method of epoxy resin curing agent is as follows:

[0028] (1) Weigh the raw materials according to the formula ratio;

[0029] (2) Add the weighed triethanolamine and propylene carbonate into the reaction kettle and stir evenly;

[0030] (3) Then, add ethylenediamine into the reaction kettle several times, and stir to mix. After all the ethylenediamine is added, stir for about half an hour, remove the water by vacuuming, and after the sampling test is qualified, you can Discharge.

[0031] Example: Epoxy resin E 44 or E 51 It is mixed with the curing agent of the present invention at a ratio of 100 to 30 by weight, and can be poured into electronic products after being evenly mixed, and finally placed in an ...

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Abstract

The invention discloses a medium-temperature and quickly-cured colorless transparent epoxy resin curing agent, which comprises the following components in part by weight: 55-65 parts of trolamine, 25-35 parts of propene carbonate and 10-15 parts of ethylene diamine. The three raw materials are mixed and reacted to generate the curing agent. The obtained curing agent and the epoxy resin are subjected to glue mixing according to the proportion so as to be heated and quickly cured and generate colorless transparent high-tenacity epoxy resin curing plastic. The medium-temperature and quickly-cured colorless transparent epoxy resin curing agent can be widely applied to perfusion sealing or high-temperature bonding repair of electronic and non-electronic products.

Description

[0001] technical field [0002] The invention relates to a chemical composition, specifically a novel epoxy resin curing agent, in particular a colorless and transparent epoxy resin curing agent that rapidly cures at a medium temperature. [0003] Background technique [0004] Among the colorless, transparent and medium-temperature curing epoxy resin curing agents used at home and abroad, triethanolamine is the most chosen one. After it is mixed with epoxy resin, it becomes a colorless and transparent gel-like liquid, which can be cured for 2-3 hours at 100°C. It is completely cured, but its texture is hard and brittle. If it is used as an electronic irrigation material, the internal stress caused by hard and brittle is too large, which often causes damage to electronic components or breaks the lead wires. The Achilles' heel of being brittle and easily broken has not been widely used. [0005] Contents of the invention [0006] The invention provides a medium-temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/64C08G59/56C09K3/10
Inventor 郝玉龙吴月荣
Owner 舒城金泽信环保材料有限公司
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