An electromagnetic shielding coating

A technology of electromagnetic shielding coatings and silane coupling agents, applied in conductive coatings, epoxy resin coatings, coatings, etc., can solve problems such as poor adhesion of water-based conductive coatings, and achieve good mechanical properties and adhesion effects

Active Publication Date: 2019-10-15
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, both thermoplastic coatings and thermosetting coatings are conductive coatings containing organic solvents (such as xylene or ether toxic solvents), which emit a large amount of harmful substances
However, the water-based conductive coating has the problem of poor adhesion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides an electromagnetic shielding coating that can be cured under natural conditions, including the following components in parts by mass: 12 parts of Nanya 128 epoxy resin, 9 parts of ethanol, 5 parts of isopropanol, and 12 parts of dipropylene glycol methyl ether , 6 parts of isobutanol, 18.5 parts of ethyl orthosilicate, 8 parts of MS resin, 8 parts of silicone oligomer (MSE 100), 1 part of n-propyltriethoxysilane, 3-aminopropyltriethyl 10 parts of oxysilane, 0.5 parts of dibutyltin diacetate, 10 parts of conductive agent nickel nanowire

[0047] The electromagnetic shielding coating of the present embodiment is prepared according to the following steps:

[0048] (1) Take 12 parts of epoxy resin, solvent (11 parts of ethanol, 5 parts of isopropanol, 20 parts of dipropylene glycol methyl ether, 6 parts of isobutanol) in a container, stir and dissolve fully, and then add ethyl orthosilicate 30 parts, 10 parts of MS resin, 10 parts of silicone oligo...

Embodiment 2

[0053] This embodiment provides an electromagnetic shielding coating that can be cured under natural conditions, including the following components in parts by mass: 12 parts of Nanya 128 epoxy resin, 10 parts of ethanol, 12 parts of dipropylene glycol methyl ether, and 5 parts of isopropanol , 24 parts of tetraethyl orthosilicate, 10 parts of MS resin, 10 parts of silicone oligomer (MSE 100), 1 part of 3-glycidyl etheroxypropyl trimethoxysilane, 3-aminopropyl trimethoxy 10 parts of silane, 1 part of dibutyltin dilaurate, 5 parts of conductive agent nano-silver wire

[0054] The electromagnetic shielding coating of the present embodiment is prepared according to the following steps:

[0055] (1) Weigh 12 parts of Huannanya 128 epoxy resin, 10 parts of solvent ethanol, 12 parts of dipropylene glycol methyl ether, and 5 parts of isopropanol in a container, fully stir and dissolve, then add 24 parts of tetraethyl orthosilicate, MS Put 10 parts of resin and 10 parts of silicone o...

Embodiment 3

[0060] This embodiment provides a kind of electromagnetic shielding coating that can be cured under natural conditions, including the following components in parts by mass: 15 parts of epoxy acrylic resin, 10 parts of ethanol, 12 parts of propylene glycol methyl ether, and 20 parts of methyl orthosilicate , 12 parts of MS resin, 12 parts of silicone oligomer (MSE 100), 1 part of methyltrimethoxysilane, 12 parts of 3-aminopropyltriethoxysilane, 1 part of dibutyltin dilaurate, conductive agent Carbon nanotubes 5 parts

[0061] The electromagnetic shielding coating of the present embodiment is prepared according to the following steps:

[0062] (1) Weigh 15 parts of epoxy acrylic resin, 10 parts of ethanol, and 12 parts of propylene glycol methyl ether in a container, fully stir and dissolve, then add 20 parts of methyl orthosilicate, 12 parts of MS resin, organic silicon oligomer ( MSE 100) 12 parts in the above mixed solution, mix well;

[0063] (2) Add silane coupling agent ...

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Abstract

The invention discloses an electromagnetic shielding coating. According to percentage by weight, the electromagnetic shielding coating consists of: 3 to 20 percent of conductive agent; 30 to 45 percent of organic silicon resin; 8 to 20 percent of epoxy resin; 10 to 15 percent of first silane coupling agent; 0.01 to 5 percent of catalyst; and 30 to 40 percent of alcoholic organic solvent; the organic silicon resin includes silicate ester; and the first silane coupling agent is silane coupling agent containing an amino functional group. The electromagnetic shielding coating disclosed by the invention can be naturally solidified, solidification under light and heat conditions is not needed, moreover, the adhesive force is high, and the harm on the environment is less as well.

Description

【Technical field】 [0001] The invention relates to an electromagnetic shielding paint, in particular to an electromagnetic shielding paint that does not need heating / light curing and is applicable to the coating of large-area complex structures. 【Background technique】 [0002] With the continuous development of electronic information technology, electronic products have been more and more widely used in various fields of industry and family life. The generation, transmission, reception and processing of electronic information must use electromagnetic waves as the carrier. On the one hand, electromagnetic waves play an important role as the carrier of information transmission; on the other hand, the wide application of electronic and electrical products in the information age forms a complex electromagnetic environment, which also leads to negative effects such as electromagnetic interference and electromagnetic radiation. Therefore, in order to ensure the normal operation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D163/10C09D5/24C09D7/20C08G59/14
Inventor 杨诚吴铛刘佳惺邹培超
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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