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

An electromagnetic shielding material, stainless steel technology, used in textiles and papermaking, textiles, woven fabrics, etc., can solve problems such as explosion of electric detonators and malfunction of control systems, achieve antistatic and antistatic properties, improve shielding effectiveness, toughness high effect

Inactive Publication Date: 2019-12-13
苏州耀晨新材料有限公司
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AI-Extracted 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 ...
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Method used

(2) warp and latitude adopt described yarn, utilize air-jet weaving method, adopt double-layer plain weave variation organization to weave as organizational mechanism, be specifically: the surface organization weaving of inner organization; Described double-layer plain weave variation weaving selects warp direction density as 25 threads/cm, weft density is 25 threads/cm warp and weft, and the weaving surface layer density is 50% of the inner layer density, the air-jet weaving weaving temperature is 26°C, and the humidity is 67%. The present invention a...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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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.

Application Domain

Protective fabricsMulti-ply fabrics

Technology Topic

Image

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

Examples

  • Experimental program(14)
  • Effect test(1)

Example Embodiment

[0039] Example 1
[0040] Example 1 discloses an electromagnetic shielding material based on silver fibers and stainless steel fibers, and its formulation is shown in Table 1.
[0041] The formula table of table 1 embodiment 1
[0042] components number of copies stainless steel fiber 65 silver fiber 5 auxiliary fiber 30

Example Embodiment

[0043] Example 2
[0044] Example 2 discloses an electromagnetic shielding material based on silver fibers and stainless steel fibers, and its formulation is shown in Table 2.
[0045] The formula table of table 2 embodiment 2
[0046] components number of copies stainless steel fiber 65 silver fiber 7 auxiliary fiber 30

Example Embodiment

[0047] Example 3
[0048] Example 3 discloses an electromagnetic shielding material based on silver fibers and stainless steel fibers, and its formulation is shown in Table 3.
[0049] The formula table of table 3 embodiment 3
[0050] components number of copies stainless steel fiber 65 silver fiber 10 auxiliary fiber 30
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PUM

PropertyMeasurementUnit
Fineness0.8 ~ 2.0dtex
Fineness1.4dtex
Shielding effectiveness>= 45.0dB
tensileMPa
Particle sizePa
strength10

Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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