A highly antibacterial ag@cu nanoparticle-modified pi nanofiber filament yarn

A nanofiber and nanoparticle technology, applied in fiber processing, fiber type, filament/wire forming, etc., can solve the problems of limiting the development of polyimide materials and general antibacterial effect

Active Publication Date: 2020-11-03
JIANGXI ADVANCED NANOFIBER S&T CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently prepared polyimide nanofibers not only have general antibacterial effects, but also cannot continuously prepare infinitely long polyimide nanofibers with high antibacterial properties, which limits the development of polyimide materials in the field of clothing.

Method used

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  • A highly antibacterial ag@cu nanoparticle-modified pi nanofiber filament yarn
  • A highly antibacterial ag@cu nanoparticle-modified pi nanofiber filament yarn
  • A highly antibacterial ag@cu nanoparticle-modified pi nanofiber filament yarn

Examples

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preparation example Construction

[0023] The second aspect of the present invention provides a method for preparing the high antibacterial Ag@Cu nanoparticles modified PI nanofiber long yarn, the steps at least include:

[0024] (1) spinning: electrospinning the polyamic acid solution to prepare polyamic acid nanofiber mats and / or nonwovens;

[0025] (2) Impregnation: the polyamic acid nanofiber mat and / or non-woven fabric is impregnated with copper salt solution and / or silver salt solution; the mass concentration of described copper salt solution is 0.1-2wt%, and the mass concentration of silver salt solution is 0.1-2wt%;

[0026] (3) drafting: after drying, slitting into strips, heating and drafting to prepare oriented nanofiber bundles decorated with metal nanoparticles;

[0027] (4) Twisting: Twisting the oriented nanofiber bundles decorated with metal nanoparticles.

[0028] In some embodiments, the preparation method of the highly antibacterial Ag@Cu nanoparticles modified PI nanofiber long yarn, the s...

Embodiment 1

[0075] A high antibacterial Ag@Cu nanoparticle modified PI nanofiber long yarn, the continuous length of the nanofiber long yarn is more than 2500 meters, the degree of orientation is 81%, and the linear density is 3.1Tex;

[0076] The preparation method of highly antibacterial Ag@Cu nanoparticles modified PI nanofiber long yarn described in this embodiment, the steps include:

[0077] (1) Spinning: After the dianhydride and diamine monomers are purified, they are added to the polymerization reactor together with an appropriate amount of solvent, stirred and reacted for a period of time to obtain a polyamic acid solution, and the polyamic acid solution is placed in a high-voltage electric field Implementing electrospinning in the process, using a stainless steel mesh belt as a collector, collecting polyamic acid nanofiber felts;

[0078] (2) Impregnation: impregnating the electrospun polyamic acid nanofiber mat obtained above in a mixed aqueous solution of copper salt and silv...

Embodiment 2

[0083]A high antibacterial Ag@Cu nanoparticle modified PI nanofiber long yarn, the continuous length of the nanofiber long yarn is more than 2500 meters, the degree of orientation is 75%, and the linear density is 19.4Tex;

[0084] The preparation method of highly antibacterial Ag@Cu nanoparticles modified PI nanofiber long yarn described in this embodiment, the steps include:

[0085] (1) Spinning: After the dianhydride and diamine monomers are purified, they are added to the polymerization reactor together with an appropriate amount of solvent, stirred and reacted for a period of time to obtain a polyamic acid solution, and the polyamic acid solution is placed in a high-voltage electric field Implementing electrospinning in the process, using a stainless steel mesh belt as a collector, collecting polyamic acid nanofiber felts;

[0086] (2) Impregnation: impregnating the electrospun polyamic acid nanofiber mat obtained above in a mixed aqueous solution of copper salt and silv...

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Abstract

The invention relates to preparation of polyimide fibers, and provides a highly-antibacterial Ag@Cu nanometer particle modified PI nano-fiber long yarn. The continuous length of the nano-fiber long yarn is larger than 2500 meters, the degree of orientation is higher than 75%, and the linear density is 3.0-20.0 Tex. The invention further provides a preparation method and application of the highly-antibacterial Ag@Cu nanometer particle modified PI nano-fiber long yarn.

Description

technical field [0001] The present invention relates to the preparation of polyimide fibers, and more specifically relates to a high antibacterial Ag@Cu nanoparticle modified PI nanofiber long yarn and its preparation method and application. Background technique [0002] The development of antibacterial textiles using antibacterial fibers and fabric antibacterial finishing are two ways to produce antibacterial functional textiles. In contrast, the use of antibacterial fibers to develop antibacterial textiles can endow products with better comfort and functional durability, which is a more advantageous technical means. There are many ways to prepare antibacterial fiber, and the antibacterial effect will be different because of the different antibacterial components and antibacterial mechanisms. In order to achieve the antibacterial function of the product, the content of antibacterial fiber as a functional component in the product varies according to its antibacterial perfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/06D04H1/728D01D5/00D06M11/83D06M101/30
CPCD01D5/003D02G3/06D04H1/728D06M11/83D06M16/00D06M2101/30D10B2331/00
Inventor 侯豪情程楚云欧阳文侯翔宇王琦张奉锐吕晓义
Owner JIANGXI ADVANCED NANOFIBER S&T CO LTD
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