Electromagnetic shielding material based on silver fibers and stainless steel fibers and preparation method thereof

Abstract

The invention discloses an electromagnetic shielding material based on silver fibers and stainless steel fibers. The electromagnetic shielding material is woven from yarn, and with a unit yarn cross-sectional area as one part, the yarn is prepared from 25-65 parts of the stainless steel fibers, 5-10 parts of the silver fibers and 30-70 parts of auxiliary fibers. A preparation method of the electromagnetic shielding material comprises the steps that (1) the stainless steel fibers, the silver fibers and the auxiliary fibers are spun into the 16-40<s> / 2 yarn through a siro spinning process; (2) the yarn is adopted as warp and weft and woven by utilizing a rapier or air-jet weaving method and adopting double-layer plain change weaves as a weave mechanism, wherein weaving is conducted in the manner that the inner weaves adopt one-up one-down right twill weaves and the surface weaves adopt one-up two-down right twill weaves. The electromagnetic shielding material can effectively shield electromagnetic waves, the electromagnetic shielding range is 150 MHz-200 GHz, and the warp and weft shielding effectiveness can be greater than or equal to 45 dB.

Description

technical field [0001] The invention relates to metal electromagnetic shielding materials, in particular to an electromagnetic shielding material based on silver fibers and stainless steel fibers and a preparation method thereof. Background technique [0002] Stainless steel fiber is an excellent electromagnetic shielding material. Nowadays, composite materials made of stainless steel fiber as the base material have been widely used in textile fabrics. [0003] Silver fiber is also an excellent metal electromagnetic shielding material. Materials made of silver fiber not only have good electromagnetic shielding properties, but also have antistatic, antibacterial, and deodorizing effects. [0004] Electromagnetic waves can be seen everywhere in our daily life, ranging from airplanes and ships to computers and mobile phones. Electromagnetic waves are a good medium for communication, detection, and imaging. While they bring convenience to our lives, they will inevitably cause h...

AI Technical Summary

Problems solved by technology

[0005] For example, some military equipment: There are many electric detonators on aircraft, missiles, tanks and warships. These electric detonators have become indispensable equipment in ordnance systems. Interference currents can cause malfunctions of the control system, or cause direct explosion of electric detonation devices. Since electromagnetic waves have played a role in human society, the serious threats posed by electromagnetic waves to electric detonation devices are too numerous to enumerate.

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