Electromagnetic shielding wall plate and manufacturing method thereof

A technology of electromagnetic shielding and manufacturing method, applied in conductive coatings, building structures, polyurea/polyurethane coatings, etc., can solve the problem of low electromagnetic shielding performance of wall panels, and achieve improved shielding efficiency, good conductivity, and increased coating. effect of life

A technology of electromagnetic shielding and manufacturing method, applied in conductive coatings, building structures, polyurea/polyurethane coatings, etc., can solve the problem of low electromagnetic shielding performance of wall panels, and achieve improved shielding efficiency, good conductivity, and increased coating. effect of life

CN106930466AActive Publication Date: 2017-07-07AUTOMOTIVE ENG CORP
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  • Electromagnetic shielding wall plate and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] An electromagnetic shielding wallboard and a manufacturing method thereof. The electromagnetic shielding wallboard includes a concrete prefabricated substrate, a nickel alloy hole mesh sheet is adhered to one side, and the exterior of the nickel alloy hole mesh sheet is a plastering mortar layer, and the plastering mortar layer is externally coated Covered with shielding rubber coating,

[0026] The manufacturing method of the electromagnetic shielding wallboard includes the following steps:

[0027]First, 73 parts of polyurethane resin, 12 parts of styrene-acrylic emulsion, 21 parts of butadiene rubber, 80 parts of ethyl acetate, and 25 parts of xylene are put into the agitator and heated to 35°C for mixing according to parts by weight. The stirring speed is 300-400rpm. After uniformity, add 10-15 parts of barite powder, 14 parts of white carbon black powder and 20 parts of nickel powder, cool down to 30°C and keep it for 20 minutes, then add 5 parts of dibutyltin dila...

Embodiment 2

[0031] An electromagnetic shielding wallboard and a manufacturing method thereof. The electromagnetic shielding wallboard includes a concrete prefabricated substrate, a nickel alloy hole mesh sheet is adhered to one side, and the exterior of the nickel alloy hole mesh sheet is a plastering mortar layer, and the plastering mortar layer is externally coated Covered with shielding rubber coating,

[0032] The method for manufacturing an electromagnetic shielding wallboard includes the following steps:

[0033] First, put 73 parts of polyurethane resin, 18 parts of styrene-acrylic emulsion, 25 parts of butadiene rubber, 90 parts of ethyl acetate, and 30 parts of xylene into the agitator to heat up to 35°C for mixing according to parts by weight. The stirring speed is 300-400rpm. After uniformity, add 11 parts of barite powder, 14 parts of white carbon black powder and 29 parts of nickel powder, cool down to 30°C and keep it warm for 20 minutes, then add 4 parts of dibutyltin dilau...

Embodiment 3

[0037] An electromagnetic shielding wallboard and a manufacturing method thereof. The electromagnetic shielding wallboard includes a concrete prefabricated substrate, a nickel alloy hole mesh sheet is adhered to one side, and the exterior of the nickel alloy hole mesh sheet is a plastering mortar layer, and the plastering mortar layer is externally coated Covered with shielding rubber coating,

[0038] The method for manufacturing an electromagnetic shielding wallboard includes the following steps:

[0039] First, 77 parts of polyurethane resin, 18 parts of styrene-acrylic emulsion, 22 parts of butadiene rubber, 80 parts of ethyl acetate, and 35 parts of xylene are put into the agitator and heated to 35°C for mixing according to parts by weight. The stirring speed is 300-400rpm. After uniformity, add 11 parts of barite powder, 12 parts of white carbon black powder and 26 parts of nickel powder, lower the temperature to 30°C and keep it for 20 minutes, then add 5 parts of dibut...

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Abstract

The invention discloses an electromagnetic shielding wall plate and a manufacturing method thereof. The electromagnetic shielding wall plate comprises a prefabricated concrete base plate. A nickel alloy mesh sheet is bonded to one side of the nickel alloy mesh sheet, a plastered mortar layer is arranged on the outer side of the nickel alloy mesh sheet, and the outside of the plastered mortar layer is coated with a shielding rubber coating. Polyurethane resin and a styrene-acrylic emulsion are adopted as an organic carrier for butadiene rubber shielding coating provided by the invention. Compared with traditional epoxy resin solvent-based coating, the coating has more satisfactory shielding effect, blanc fixe, carbon black and nickel powder are dispersed in the coating and interlapped, accordingly a tight conductive network is formed, and the electric conductivity is greatly improved. In addition, long-term electromagnetic wave radiation can damage organic film forming matter in the coating, and consequentially the coating can crack, and butadiene rubber can be used for effectively improving the tenacity of the coating and prolonging the service life of the coating.

Description

technical field [0001] The invention relates to an electromagnetic shielding wallboard and a manufacturing method thereof, belonging to the field of building materials. Background technique [0002] As we all know, with the rapid development of electronic technology and its wide application, electromagnetic radiation pollution hazards exist all the time. At the foot of radio and television stations in the city, around microwave stations and radar stations, near communication hubs, on both sides of electrified railways, around radio frequency equipment and buildings next to streets, all are areas with heavy far-field electromagnetic radiation pollution. In addition, indoor electrical appliances The generated electromagnetic wave is also a human hazard that cannot be ignored. The walls of ordinary buildings cannot block electromagnetic radiation; therefore, corresponding shielding measures must be taken. The existing technology cannot meet the actual needs, and it is urgent ...

Claims

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Application Information

Patent Timeline
07 Jul 2017
Publication
CN106930466A
IPC
E04C2/288; E04C2/292; C09D175/04; C09D125/14; C09D5/24; C09D7/12; C22C19/03; C22F1/10; C04B28/14
CPC
C04B28/14; C08K2003/0862; C08K2003/3045; C08L2205/03; C09D1/00; C09D5/24; C09D7/61; C09D7/63
Inventors
肖文华