Superfine fiber synthetic leather with performance of electromagnetic radiation prevention and production method thereof

An anti-electromagnetic radiation and ultra-fine fiber technology, which is applied in fiber processing, electrical components, magnetic field/electric field shielding, etc., can solve the problems of high pollution, high energy consumption of natural leather, and limited resources of natural leather raw materials, and achieve good application Prospect, effect of good physical and mechanical properties

Active Publication Date: 2018-08-28
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the limited raw leather resources used to produce natural leather, and the production of natural leath

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

[0038] A production method of ultrafine fiber synthetic leather with electromagnetic radiation protection performance, including the following steps:

[0039] (1) Using fixed island-type sea-island fiber nonwoven fabric as the base material, the chitosan modified graphene emulsion is used to impregnate the sea-island fiber nonwoven fabric, and the pre-treated base fabric A is obtained by drying in an oven after liquefaction; the specific process is as follows:

[0040] In parts by weight, add 1 part of acetic acid to 100 parts of water, then add 4 parts of chitosan, fully stir to dissolve, and then add 2 parts of graphene powder, stir evenly and ultrasonically treat for 30 minutes to make the graphene powder Disperse uniformly to obtain chitosan-modified graphene emulsion; pass the sea-island fiber nonwoven fabric through a dip tank containing chitosan-modified graphene emulsion, and then pass through a roller to control the amount of chitosan-modified graphene emu...

Example Embodiment

[0047] Example 2

[0048] A production method of ultrafine fiber synthetic leather with electromagnetic radiation protection performance, including the following steps:

[0049] (1) Using the non-fixed island type sea-island fiber nonwoven fabric as the base material, the chitosan modified graphene emulsion is used to impregnate the sea-island fiber nonwoven fabric, and the pre-treated base fabric A is obtained by drying in an oven after rolling; the specific process is as follows :

[0050] In parts by weight, add 2 parts of acetic acid to 90 parts of water, then add 3 parts of chitosan, fully stir to dissolve, and then add 3 parts of graphene powder, stir well, and ultrasonic treatment for 40 minutes to make the graphene powder Disperse uniformly to obtain chitosan-modified graphene emulsion; pass the sea-island fiber nonwoven fabric through a dip tank containing chitosan-modified graphene emulsion, and then pass through a roller to control the amount of chitosan-modified graphene...

Example Embodiment

[0057] Example 3

[0058] A production method of ultrafine fiber synthetic leather with electromagnetic radiation protection performance, including the following steps:

[0059] (1) Using fixed island-type sea-island fiber nonwoven fabric as the base material, the chitosan modified graphene emulsion is used to impregnate the sea-island fiber nonwoven fabric, and the pre-treated base fabric A is obtained by drying in an oven after liquefaction; the specific process is as follows:

[0060] In parts by weight, add 3 parts of acetic acid to 80 parts of water, then add 2 parts of chitosan, fully stir to dissolve, and then add 4 parts of graphene powder, stir evenly, and ultrasonic treatment for 50 minutes to make the graphene powder Disperse uniformly to obtain chitosan-modified graphene emulsion; pass the sea-island fiber nonwoven fabric through a dip tank containing chitosan-modified graphene emulsion, and then pass through a roller to control the amount of chitosan-modified graphene em...

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PUM

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Abstract

The invention discloses a superfine fiber synthetic leather with performance of electromagnetic radiation prevention and a production method thereof. Sea-island fiber non-woven fabric serves as a basic material, chitosan-modified graphene emulsion is adopted to dip the sea-island fiber non-woven fabric, and after being subjected to liquid squeezing, the sea-island fiber non-woven fabric is dried through a dryer to obtain pretreated base cloth A; the pretreated base cloth A serves as a basic material, waterborne polyurethane emulsion is adopted to dip the pretreated base cloth A, and after being subjected to liquid squeezing, the pretreated base cloth A is dried through the dryer to obtain pretreated base cloth B; the pretreated base cloth B serves as a basic material, the steps are repeated, and the superfine fiber synthetic leather is obtained simply through a decrement process and an after-finishing process. By means of the superfine fiber synthetic leather with the performance of electromagnetic radiation prevention and the production method thereof, environment-friendly materials and superposed composite technologies are completely adopted, the obtained superfine fiber synthetic leather has good physical and mechanical performance, within the frequency range of 30 MHz-1.5 GHz, the electromagnetic shield effect can reach 35 dB or so, and the superfine fiber synthetic leathercan be applied to the electrical and electronic industries, and can also serve as a novel material for protective clothing and tents.

Description

technical field [0001] The invention relates to the technical field of ultrafine fiber synthetic leather, in particular to an ultrafine fiber synthetic leather with anti-electromagnetic radiation performance and a production method thereof. Background technique [0002] Due to the limited resources of raw leather used to produce natural leather, and the production of natural leather is a process of high energy consumption and high pollution, it will bring a huge pollution load to the environment. In recent years, developed countries such as the European Union have also proposed new standards for the safety of natural leather itself, strictly restricting the presence of toxic chemicals such as Cr(VI), azo dyes, pentachlorophenol (PCP) and free formaldehyde in natural leather. . From the perspective of raw leather resources, environmental protection, product safety and market, the production and use of natural leather are facing great challenges. [0003] For the above reaso...

Claims

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Application Information

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IPC IPC(8): D06M15/03D06M11/74D06M15/564H05K9/00
CPCD06M11/74D06M15/03D06M15/564H05K9/0081
Inventor 马兴元张铭芮赵昭丁博
Owner SHAANXI UNIV OF SCI & TECH
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