Method for preparing finishing agent of modified nano titanium dioxide coating layer of electromagnetic shielding fabric

A nano-titanium dioxide, electromagnetic shielding technology, applied in the fields of magnetic/electric field shielding, dyeing organosilicon compound treatment, electrical components, etc., can solve the problems that restrict the development of such textiles, and achieve excellent antibacterial and anti-ultraviolet effects.

Inactive Publication Date: 2010-07-07
ZHEJIANG SAINTYEAR ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of wearing electromagnetic shielding fabrics on the market is that they only have the function of electromagnetic shielding, which seriously restricts the development of this type of textiles in civilian protection.

Method used

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  • Method for preparing finishing agent of modified nano titanium dioxide coating layer of electromagnetic shielding fabric
  • Method for preparing finishing agent of modified nano titanium dioxide coating layer of electromagnetic shielding fabric
  • Method for preparing finishing agent of modified nano titanium dioxide coating layer of electromagnetic shielding fabric

Examples

Experimental program
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Effect test

Embodiment 1

[0020] In this example, the copper-plated electromagnetic shielding fabric produced by Sanyuan Electronic Technology Co., Ltd. is used as the base material, and the preparation process is as follows:

[0021] 1. Add 5 ml of γ-aminopropyltriethoxysilane (silane coupling agent KH-550) to 200 ml of ethanol, adjust the pH of the solution to 4 with acetic acid, stir for 20 minutes, and mix 15 grams of TiO below 20nm 2 Add the powder into it, and carry out strong mechanical stirring at the same time. After 2 hours of reaction, filter the powder out of the solution and dry it. Grind the powder obtained above, add it to ethanol and keep stirring, heat the solution to 80°C in a water bath, then add 0.6 g of stearic acid, react for 2 hours, filter and take out the powder, and dry it, that is A modified nano-titanium dioxide is obtained.

[0022] 2. Proportioning by weight of 98% water-based polyurethane and modified nano-titanium dioxide 2%, mix well to obtain the modified nano-titani...

Embodiment 2

[0027] In this example, the nickel-plated electromagnetic shielding fabric produced by Sanyuan Electronic Technology Co., Ltd. is used as the base material, and the preparation steps are as follows:

[0028] 1. Add 4 ml of γ-glycidyl etheroxypropyl trimethoxysilane (silane coupling agent KH-560) to 150 ml of ethanol, adjust the pH of the solution to 5, stir for 15 minutes, and then mix 10 g TiO with particle size less than 20nm 2 Add the powder into it, and carry out strong mechanical stirring at the same time. After reacting for 1.5 hours, filter the powder out of the solution and dry it. Grind the powder obtained above, add it to ethanol and keep stirring, heat the solution to 60°C through a water bath, then add 0.3 stearic acid, react for 1.5 hours, filter and take out the powder, and dry it to obtain Modified nano titanium dioxide.

[0029] 2. Mix 93% latex resin, 5% modified nano-titanium dioxide, and 2% melamine by weight to obtain the modified nano-titanium dioxide co...

Embodiment 3

[0033] In this example, the silver-plated electromagnetic shielding fabric produced by Sanyuan Electronic Technology Co., Ltd. is used as the base material, and the preparation steps are as follows:

[0034] 1. Add 8 ml of γ-methacryloxypropyl trimethoxysilane (silane coupling agent KH-570) to 200 ml of ethanol, adjust the pH of the solution to 3, stir for 30 minutes, and mix 18 g TiO with particle size less than 20nm 2 Add the powder into it, and carry out strong mechanical stirring at the same time. After 2 hours of reaction, filter the powder out of the solution and dry it. Grind the powder obtained above, add it to ethanol and keep stirring, heat the solution to 70°C in a water bath, then add stearic acid, react for 2 hours, filter and take out the powder, and dry to obtain the modified nano Titanium dioxide.

[0035] 2. Mix 94% polyester resin, 4% modified nano-titanium dioxide, and 2% isocyanate by weight to obtain the modified nano-titanium dioxide coating finishing a...

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Abstract

The invention relates to a method for preparing a finishing agent of a modified nano titanium dioxide coating layer of an electromagnetic shielding fabric. The technical problem of the invention to be solved is that the method for preparing the finishing agent of the modified nano titanium dioxide coating layer of the electromagnetic shielding fabric is provided, so that the electromagnetic shielding fabric has excellent performance of ultraviolet ray resistance, antibacterium, self-cleaning and the like, and the original characteristic of low surface resistance can be maintained at the same time. The technical scheme for solving the problem is that nano TiO2 is modified by a special process, and then the modified nano TiO2 is mixed uniformly with resin and a cross-linking agent according to the proportion, so that the finishing agent of the modified nano titanium dioxide coating layer of the electromagnetic shielding fabric is obtained. The invention can be used for the textile industry of the electromagnetic shielding fabric.

Description

technical field [0001] The invention relates to a preparation method of a modified nano-titanium dioxide coating finishing agent for electromagnetic shielding fabrics, which is suitable for the textile industry, especially the textile industry of electromagnetic shielding fabrics. Background technique [0002] When electromagnetic shielding fabrics first came out, they were mainly used in the electronics industry. However, in recent years, as citizens pay more and more attention to their health, flexible shielding materials have developed rapidly in the civilian field. Since the surface layer of the electromagnetic shielding fabric is copper, nickel, silver and other metals, it is easily affected by the temperature and humidity of the use environment. Conventionally, polyurethane or acrylate is coated on the electromagnetic shielding fabric to achieve the purpose of protecting the metal layer. . However, the disadvantage of wearing electromagnetic shielding fabrics on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M15/564D06M15/507D06M15/263D06M13/395D06M13/364C09C1/36C09C3/12H05K9/00
Inventor 王炜田海玉高坚生张海林马跃辉纪俊玲
Owner ZHEJIANG SAINTYEAR ELECTRONICS TECH
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