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Preparation of high-performance magnetic conductive pressure-sensitive adhesive

A pressure-sensitive adhesive, high-performance technology, used in conductive adhesives, adhesives, adhesive types, etc., can solve the problems of unreasonable selection of magnetic conductive materials, narrow application areas, and troublesome processes, and achieve oil-water amphiphilicity. Excellent, simplified preparation process, stable dispersion effect

Active Publication Date: 2013-12-18
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics of this type of adhesive are that the application surface is narrow, it cannot be repaired after curing, and the internal stress is easy to cause material fatigue
Some scientific research institutions and units have also prepared thermoplastic magnetic conductive adhesives, but the selection of magnetic conductive materials is unreasonable, the process is troublesome and the cost is too high, which cannot meet the needs of national defense and people's daily life

Method used

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Experimental program
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Effect test

Embodiment 1～5

[0017] A method for preparing and using a high-performance conductive pressure-sensitive adhesive, comprising the following two steps:

[0018] 1) Preparation of magnetic conductive materials

[0019] After graphene oxide is pulverized, add deionized water and ultrasonically disperse for 12 hours to obtain a graphene oxide / water suspension [M 氧化石墨烯 : M 去离子水 =1:99].

[0020] The mass fraction is 0.3% PdCl 2 Mix the aqueous solution with 1mol / L dilute hydrochloric acid solution to make PdCl 2 / HCl activation solution [V 氯化钯溶液 :V 盐酸溶液 =4:1]. Then make graphene oxide / water suspension and PdCl 2 / HCl activation solution stirring and mixing [V 氧化石墨烯 / 水 :V 活化液 =1:1], adding boric acid for activation. The activated mixture was washed with a large amount of deionized water. After the solids in the mixed solution settled, part of the supernatant was removed, and washed repeatedly until the pH was close to 5.

[0021] Add excessive sodium hypophosphite monohydrate solution to ...

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PUM

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Abstract

The invention relates to preparation method of a high-performance magnetic conductive pressure-sensitive adhesive. In the pressure-sensitive adhesive, solvent type polyacrylate is used as a resin matrix, and modified graphene oxide is used as a magnetic conductive material. The graphene oxide is an insulator but has a large surface area and is stable and dispersed and is not easily agglomerated and also has oil-water amphipathy and excellent mechanical properties and can be used as a good carrier and a modification matrix; the polyacrylate has good affinity and is suitable for splicing many metals and nonmetal materials. By adopting the method, the related preparation process is simplified, and the research range of functional pressure-sensitive adhesive is widened, thus the method has positive significance.

Description

technical field [0001] The invention relates to a method for preparing and using a high-performance magnetically conductive pressure-sensitive adhesive, which can provide materials for stealth coatings for ships, and can also be used in occasions requiring electromagnetic shielding such as large-scale power station facilities. Background technique [0002] With the development of high-tech and increased investment in cutting-edge fields, electromagnetic shielding materials in foreign developed countries have developed rapidly, especially the United States, Western Europe, Japan, etc. have formed industries that produce various types and series of specifications of shielding materials. The emergence of a variety of shielding material products with excellent performance has greatly enhanced the military strength of these countries and regions. [0003] In addition, the electromagnetic interference (EMI) and electromagnetic compatibility (EMC) problems caused by electromagnetic...

Claims

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Application Information

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IPC IPC(8): C09J133/08C09J9/02C09J9/00
Inventor 齐暑华张帆史金玲张翼马缓黄英
Owner NORTHWESTERN POLYTECHNICAL UNIV
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