Production method for functional nanofiber yarns

A nanofiber and functional technology is applied in the processing field of one-step preparation of functional nanofiber yarn, which can solve the problems of complex, uneven, and tedious finishing of processing procedures, so as to reduce processing procedures, improve production efficiency, and reduce tedious steps. Effect

Inactive Publication Date: 2020-02-25
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the first method, in the process of configuring the composite spinning solution, problems such as solute immiscibility or uneven dispersion will occur, which will affect the stability of the spinning state; the latter two methods have cumbersome functional finishing and complicated processing procedures
So far, no researchers have combined electrospinning technology with finishing technology to form a new one-step processing technology for preparing functional nanofiber yarns.

Method used

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  • Production method for functional nanofiber yarns

Examples

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Effect test

preparation example Construction

[0024] see figure 1 , figure 1 It is a process flow diagram of a preparation method of a functional nanofiber yarn of the present invention. Such as figure 1 As shown, the specific process steps are as follows:

[0025] (1) Mix the functional nanoparticles and the dispersant evenly, add them to the prepared Pingpinga O aqueous solution, stir it on a magnetic stirrer, and then perform ultrasonic treatment on it to prepare a functional nanoparticle dispersion, which is then Pour it into the beaker 1, and the magnetic stirrer 2 is always in working condition during the spinning process. The functional nanoparticles include chitosan, nano-titanium dioxide, nano-silver, nano-copper, cerium oxide, etc. Due to the high free energy on the surface of the nanoparticles, agglomeration will occur when the nanoparticles are dispersed in the bath. The effect of adding a dispersant in the bath is to reduce the agglomeration of the nanoparticles in the bath and improve the Stability in b...

Embodiment 1

[0030] This implementation case shows a preparation method of a functional nanofiber yarn (chitosan / polyamide 6 functional nanofiber yarn) according to the following steps:

[0031](1) Prepare a mixed dispersant with Span-80 and Tween-80 in a mass ratio of 3:7, then add chitosan nanoparticle powder into the dispersant and mix evenly to ensure that the surface of chitosan nanoparticles is covered. Dispersant is fully wrapped; Then add 0.5wt% Pingpinga O aqueous solution to form bath liquid, wherein the mass fraction of mixed type dispersant in bath liquid is 0.2%, and the mass fraction of chitosan nanoparticle is 0.4%; In magnetic stirrer Preliminary dispersion under the action of 30min stirring time, followed by ultrasonic treatment, ultrasonic time 50min, to obtain a uniformly dispersed spinning bath.

[0032] (2) Add the polyamide 6 solution with a mass fraction of 25% into a 20ml syringe, control the flow rate of the solution through a flow pump, which is 1ml / h, and the sol...

Embodiment 2

[0035] This implementation case shows a preparation method of functional nanofiber yarn (chitosan / polyacrylonitrile functional nanofiber yarn) according to the following steps:

[0036] (1) The preparation process is the same as step (1) of Example 1.

[0037] (2) Add the polyacrylonitrile solution with a mass fraction of 8% into a 20ml syringe, and control the flow rate of the solution by a flow pump, which is 7ml / h. Nanofibers are formed under the action of the glass rod and deposited on the surface of the bath. After the nanofibers are deposited on the bath, the chitosan nanoparticles are quickly adsorbed on the surface of the nanofibers to form functional nanofibers. Under the guidance of the glass rod, the nanofiber bundles Through the yarn guide hook, the drying device, the yarn guide traverse device in turn, and finally wind the nanofiber yarn onto the bobbin through the winding device; then turn on the reverse water bath system to realize the circulation of the bath li...

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Abstract

The invention discloses a production method for functional nanofiber yarns. The nanofiber yarns are prepared by an electrospinning method and received by a water bath, wherein bath liquid is dispersion liquid containing functional nanoparticles. Nanofibers have high surface free energy, the functional nanoparticles are adsorbed to the surfaces of the fibers when the fibers are settled in the bathliquid, and accordingly, the fibers have corresponding functionality. The one-step processing technique combines nanofiber production with functional after-finishing, and accordingly, a certain functionality is achieved during fiber formation; tedious steps of the functional after-finishing are reduced, processing procedures for the functional yarns are decreased, the production efficacy is improved, and energy conservation and emission reduction are realized.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to a processing technology for preparing functional nanofiber yarns in one step. Background technique [0002] In recent years, the preparation of functional nanofibers has become a hot spot in the field of material science and technology. At present, adding functional materials to spinning solution or spinning masterbatch is one of the effective methods to prepare functional fibers. There are generally three methods for preparing functional electrospun nanofibers: one is to directly add functional substances to the spinning solution (Cooper A, Oldinski R, Ma H, et al. Chitosan-based nanofibrous membranes for antibacterial filter applications[J] .Carbohydrate Polymers, 2013,92 (1): 254-259.); The second is to carry out post-treatments such as calcination, surface treatment, hydrothermal or gas-solid reaction on fibers (Pandimurugan R, ThambiduraiS.UV protection and antibacterial...

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): D06M15/03D06M11/83D06M11/46D06M11/38D06M13/256D06M13/463D06M15/53D06M101/28D06M101/34D06M101/38
CPCD06M15/03D06M11/83D06M11/46D06M11/38D06M13/256D06M13/463D06M15/53D06M2101/28D06M2101/34D06M2101/38
Inventor 江瑞闫涛潘志娟
Owner SUZHOU UNIV
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