Preparation method of electromagnetic shielding fabric

An electromagnetic shielding and fabric technology, which is applied in the field of electromagnetic shielding fabric preparation, can solve the problems of weak bonding of metal and fabric, loose coating, difficult activation process of chemical copper plating, etc., and achieves good electromagnetic shielding effect, easy film forming, low cost effect

Inactive Publication Date: 2015-06-10
SUZHOU CHENHENG WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of the non-toxic and pollution-free sodium hypophosphite used as a reducing agent has been extensively studied, but its electroless copper plating activation process is difficult, the plating layer is loose, and the metal and fabric are not firmly combined, which limits its industrial implementation. Looking for Catalytic metal supports with high complexation ability and easy film formation are problems that workers in this technical field need to solve urgently

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment provides a method for preparing an electromagnetic shielding fabric. The specific operation steps of the preparation method are as follows: roughening→sensitization→activation→electroless plating→cleaning→drying;

[0046] (1) Coarsening

[0047] (1) Soak the fabric in a sodium hydroxide solution with a mass fraction of 10%, treat the fabric at a bath ratio of 1:40, 70°C, and 30 minutes, and then rinse it with distilled water;

[0048] (2) Perform plasma treatment on the above-mentioned rinsed fabric;

[0049] Among them, the plasma treatment conditions are air treatment under normal pressure for 20 minutes, the plate spacing is 4mm, and the power is 60W;

[0050] (2) Sensitization

[0051] Take nickel sulfate and citric acid, dissolve and mix them with a small amount of distilled water respectively, add water to the concentrations of 20g / L and 5g / L respectively, and the bath ratio is 20:1, take them out after sensitization for 10min, rinse with distill...

Embodiment 2

[0068] This embodiment provides a method for preparing an electromagnetic shielding fabric. The specific operation steps of the preparation method are as follows: roughening→sensitization→activation→electroless plating→cleaning→drying;

[0069] (1) Coarsening

[0070] (1) Soak the fabric in a sodium hydroxide solution with a mass fraction of 10%, treat the fabric at a bath ratio of 1:40, 80°C, and 40 minutes, and then rinse it with distilled water;

[0071] (2) Perform plasma treatment on the above-mentioned rinsed fabric;

[0072] Among them, the plasma treatment conditions are air treatment under normal pressure for 20 minutes, the plate spacing is 6mm, and the power is 60W;

[0073] (2) Sensitization

[0074] Take nickel sulfate and citric acid, dissolve and mix them with a small amount of distilled water respectively, add water to the concentration of 20g / L and 5g / L respectively, and the liquor ratio is 30:1, take them out after 20 minutes of sensitization, rinse with di...

Embodiment 3

[0091] This embodiment provides a method for preparing an electromagnetic shielding fabric. The specific operation steps of the preparation method are as follows: roughening→sensitization→activation→electroless plating→cleaning→drying;

[0092] (1) Coarsening

[0093] (1) Soak the fabric in a sodium hydroxide solution with a mass fraction of 10%, treat the fabric at a bath ratio of 1:40, 75°C, and 35 minutes, and then rinse it with distilled water;

[0094] (2) Perform plasma treatment on the above-mentioned rinsed fabric;

[0095] Among them, the plasma treatment conditions are air treatment under normal pressure for 20 minutes, the plate spacing is 5mm, and the power is 60W;

[0096] (2) Sensitization

[0097] Take nickel sulfate and citric acid, dissolve and mix them with a small amount of distilled water respectively, add water to the concentrations of 20g / L and 5g / L respectively, and the bath ratio is 25:1, take them out after 15 minutes of sensitization, rinse with dis...

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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PUM

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Abstract

The invention discloses a preparation method of an electromagnetic shielding fabric. The preparation method comprises the following specific operation steps: roughening; sensitizing; activating; performing chemical plating; cleaning; drying. The preparation method is easy and feasible, no pollution is caused in the preparation process, the preparation cost is low, and the prepared electromagnetic shielding fabric has the advantages of light weight, durability, wide shielding frequency, good comprehensive performance and the like.

Description

technical field [0001] The invention belongs to the field of fabric preparation, and in particular relates to a preparation method of an electromagnetic shielding fabric. Background technique [0002] With the rapid development of society, air pollution, water pollution and noise pollution have brought more and more harm to people, which has attracted people's attention. People improve the environment outside us and create a harmonious living space by reducing the emission of polluting gases, improving sewage treatment systems and reducing noise decibels. However, with the rapid development of electronic technology, a new invisible pollution - electromagnetic interference has emerged. Electromagnetic radiation not only interferes with the operation of electrical equipment and the transmission and reception of wireless signals, but also seriously damages human health. It is a kind of "invisible, intangible, and intangible" pollution. [0003] Conductive metals can reflect, ...

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): D06M11/83D06M11/38D06M10/00D06M11/56D06M13/207D06M23/00C08G83/00C23C18/40C23C18/30C23C18/28
Inventor 陈菊媛叶冬明
Owner SUZHOU CHENHENG WEAVING
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