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Electromagnetic shielding cloth and preparation method thereof

A technology of electromagnetic shielding and electromagnetic shielding materials, applied in the field of clothing materials, can solve problems such as the decline of electromagnetic shielding effect and the metal coating is not resistant to washing, and achieve excellent electromagnetic shielding effect, long service life and good flexibility

Active Publication Date: 2016-04-06
JIANGSU DONGBANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The electromagnetic shielding supplementary fabric obtained by applying the coating material on the fabric feels soft and has a good electromagnetic shielding effect. The metal coating used is generally copper, nickel or copper-nickel alloy, but the metal coating is not resistant to washing, and the electromagnetic shielding effect is serious after repeated washing. decline

Method used

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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  • Electromagnetic shielding cloth and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1, such as figure 1 , an electromagnetic shielding cloth, comprising nanometer electromagnetic shielding particles 1, a thermoplastic polyurethane slurry shielding layer 2, a fabric 3 and a thermoplastic polyurethane slurry surface layer 4, wherein the thermoplastic polyurethane slurry shielding layer 2 contains nanometer electromagnetic shielding particles 1, The thermoplastic polyurethane slurry shielding layer 2 is covered on the surface of the fabric 3 , and the thermoplastic polyurethane slurry shielding layer 2 is coated with a thermoplastic polyurethane slurry surface layer 4 .

[0025] The nano-electromagnetic shielding particles 1 are composite electromagnetic shielding particles composed of carbon nanotubes and graphene, and the mass fraction of carbon nanotubes in the composite electromagnetic shielding material is 95% to 99%.

Embodiment 2

[0026] Example 2, a preparation method of electromagnetic shielding cloth, the preparation process is to disperse the nano-electromagnetic shielding material in a solvent, mix it with thermoplastic polyurethane slurry, and then apply it on the surface of the fabric 3, as the thermoplastic polyurethane slurry shielding layer 2 After drying, apply a layer of thermoplastic polyurethane slurry as the thermoplastic polyurethane slurry surface layer 4 to form an electromagnetic shielding cloth, which can be used to protect electromagnetic radiation.

[0027] The nano-electromagnetic shielding material is composite electromagnetic shielding particles composed of carbon nanotubes and graphene, and the mass fraction of carbon nanotubes in the composite electromagnetic shielding material is 95% to 99%.

[0028] The carbon nanotubes are acidified carbon nanotubes, or carbon nanotubes coated with nickel on the surface; the graphene is graphene oxide, or graphene after reduction of graphene...

Embodiment 3

[0048] A method for preparing an electromagnetic shielding cloth, the preparation process of which is to disperse a nanometer electromagnetic shielding material in a solvent, mix it evenly with a thermoplastic polyurethane slurry, and then apply it on the surface of a fabric 3 as a thermoplastic polyurethane slurry shielding layer 2, after drying Then coat a layer of thermoplastic polyurethane slurry as the thermoplastic polyurethane slurry surface layer 4 to form an electromagnetic shielding cloth, which can be used to protect electromagnetic radiation.

[0049] The nano-electromagnetic shielding material is composite electromagnetic shielding particles composed of carbon nanotubes and graphene oxide, and the mass fraction of carbon nanotubes in the composite electromagnetic shielding material is 95% to 99%.

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

An electromagnetic shielding cloth is characterized by comprising nano electromagnetic shielding particles (1), a thermoplastic polyurethane slurry shield layer (2), a fabric (3) and a thermoplastic polyurethane slurry layer surface (4). The thermoplastic polyurethane slurry shield layer (2) comprises nano electromagnetic shielding particles (1); the thermoplastic polyurethane slurry shield layer (2) coats on the surface of the fabric (3); and the thermoplastic polyurethane slurry shield layer (2) is coated with the thermoplastic polyurethane slurry layer surface (4). The electromagnetic shielding polyurethane film woven fabric of the invention has the advantages of excellent electromagnetic shielding effect, water resistance, good flexibility, and long life.

Description

technical field [0001] The invention relates to the field of clothing materials, in particular to an electromagnetic shielding cloth and a preparation method thereof. Background technique [0002] With the increasingly widespread application of electrical equipment, electromagnetic radiation has become a new type of pollution. The human body, nervous system, cardiovascular system, endocrine system, appreciation system, etc. will be damaged to varying degrees when exposed to electromagnetic radiation for a long time. In order to protect the human body from or minimize the harm of electromagnetic radiation, on the one hand, people shield the source of electromagnetic radiation to reduce the amount of radiation. On the other hand, they have developed effective protective materials for personal protection, and electromagnetic radiation protective fabric is one of them. . [0003] At present, there are two main ways to develop fabrics with electromagnetic shielding function: one...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M11/74
Inventor 蒋辉袁荞龙
Owner JIANGSU DONGBANG TECH
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