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Preparation method of electric-conductive pressure sensitive adhesive

A pressure-sensitive adhesive and conductive voltage technology, applied in the direction of conductive adhesives, adhesives, adhesive types, etc., to achieve the effect of simplifying the process, improving production efficiency and improving production efficiency

Active Publication Date: 2016-11-02
新丰杰力电工材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the process of the present invention has not yet been reported

Method used

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  • Preparation method of electric-conductive pressure sensitive adhesive
  • Preparation method of electric-conductive pressure sensitive adhesive
  • Preparation method of electric-conductive pressure sensitive adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] ① Preparation of wet silver oxide paste:

[0025] Silver nitrate 8.5%

[0026] Sodium Hydroxide 2.2%

[0027] Deionized water balance

[0028] According to the above mass percentage, deionized water is divided into two halves, which are used to prepare silver nitrate solution and sodium hydroxide solution respectively, stir the silver nitrate solution, slowly add sodium hydroxide solution dropwise, stir the reaction to the liquid phase and use sodium chloride solution No silver ions could be detected, indicating that the reaction was complete. The precipitate obtained by centrifugation of the product is crude silver oxide, and the obtained crude silver oxide is washed with deionized water and centrifuged, and the operation of deionized water washing and centrifuged is repeated until the supernatant of centrifuged is neutral, indicating that it has been washed Clean, after the last centrifugation to remove the supernatant, add deionized water to the silver oxide powde...

Embodiment 2

[0036] ① Preparation of wet silver oxide paste:

[0037] Silver nitrate 25.5%

[0038] Potassium hydroxide 10.1%

[0039]Deionized water balance

[0040] According to the above mass percentage, the deionized water is divided into two halves, which are used to prepare silver nitrate solution and potassium hydroxide solution respectively, stir the silver nitrate solution, slowly add potassium hydroxide solution, stir the reaction to the liquid phase and use sodium chloride solution No silver ions could be detected, indicating that the reaction was complete. The precipitate obtained by centrifugation of the product is crude silver oxide, and the obtained crude silver oxide is washed with deionized water and centrifuged, and the operation of deionized water washing and centrifuged is repeated until the supernatant of centrifuged is neutral, indicating that it has been washed Clean, after the last centrifugation to remove the supernatant, add deionized water to the silver oxide ...

Embodiment 3

[0048] ① Preparation of wet silver oxide paste:

[0049] Silver nitrate 35.0%

[0050] Lithium hydroxide 6.0%

[0051] Deionized water balance

[0052] According to the above mass percentage, the deionized water is divided into two halves, which are used to prepare silver nitrate solution and lithium hydroxide solution respectively, stir the silver nitrate solution, slowly add lithium hydroxide solution, stir the reaction to the liquid phase and use sodium chloride solution No silver ions could be detected, indicating that the reaction was complete. The precipitate obtained by centrifugation of the product is crude silver oxide, and the obtained crude silver oxide is washed with deionized water and centrifuged, and the operation of deionized water washing and centrifuged is repeated until the supernatant of centrifuged is neutral, indicating that it has been washed Clean, after the last centrifugation to remove the supernatant, add deionized water to the silver oxide powder...

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Abstract

The invention discloses a preparation method of an electric-conductive pressure sensitive adhesive by mixing a dispersion agent, high-dispersed silver powder slurry, polyacrylate emulsion, a defoamer, a preservative and a flatting agent, and then ball-milling the mixture until silver powder is uniformly dispersed to obtain the adhesive. The preparation method is simple, has low cost and is convenient to promote. The raw materials of the adhesive are all toxic-free and harmless, so that the adhesive is green and environment-friendly. The electric-conductive pressure sensitive adhesive can be used as ink for writing an electric-conductive pressure sensitive pattern, drawing electric-conductive pressure sensitive circuits and producing electric-conductive pressure sensitive adhesive tapes.

Description

technical field [0001] The invention relates to a preparation method of a conductive pressure-sensitive adhesive, which belongs to the field of electronic materials. Background technique [0002] Pressure-sensitive adhesives are a class of pressure-sensitive adhesives that can be used to prepare various pressure-sensitive tapes. In addition to the performance of general pressure-sensitive adhesives, conductive pressure-sensitive adhesives also have conductive properties. They are used for writing pressure-sensitive conductive patterns, drawing pressure-sensitive conductive lines, and producing pressure-sensitive conductive tapes. [0003] We learned the silver mirror reaction in the chemistry course of the first year of high school that just ended. The silver mirror reaction is a reaction in which silver ions are reduced to metallic silver, and silver particles are deposited on the surface of test tubes and glass to form silver mirrors. As we all know, silver is the best c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J9/02C09J11/04C09J11/08
CPCC08K2201/001C08L2205/03C09J9/02C09J11/04C09J11/08C09J133/08C09J2301/302C08L39/06C08L89/00C08K2003/0806
Inventor 刘睿璇
Owner 新丰杰力电工材料有限公司
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