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Composite yarn and preparation method and application thereof

A technology of yarn and conductive yarn, which is applied in yarn, liquid/gas/steam yarn/filament treatment, textile material carrier treatment, etc. It can solve the complex process and the inability to realize large-scale production of triboelectric composite yarn, etc. problems, to achieve the effects of simplifying the preparation process, shortening the curing time, good air permeability and softness

Active Publication Date: 2020-06-26
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the method of preparing triboelectric composite yarn at room temperature is not only complicated in process, but also can only produce a certain length of yarn, which cannot realize large-scale production of triboelectric composite yarn, thus limiting the use of this kind of yarn Applications in smart fabrics

Method used

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  • Composite yarn and preparation method and application thereof
  • Composite yarn and preparation method and application thereof
  • Composite yarn and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] S1: Mix Eco flex silicone rubber 0050 and cross-linking agent at a mass ratio of 1:1, and stir at 25°C for 3 minutes, then transfer to a vacuum pump, vacuum for 5 minutes to eliminate air bubbles, and take out to obtain a silicone rubber gel .

[0054] S2: The conductive yarn is prepared by twisting silver fiber filaments and polyester filaments.

[0055] S3: passing the lower end of the conductive yarn in step S2 sequentially through the liquid storage tube, the coating nozzle, the heat preservation channel, the first roller and the second roller, and finally fixing it on the yarn collecting roller. Among them, the coating nozzle is circular with a caliber of 0.8 mm. By controlling the caliber of the coating nozzle, the thickness of the silicone rubber coating on the conductive yarn is controlled, and the coating process is made more uniform. The temperature of the heat preservation channel is 100°C.

[0056] S4: Inject the silicone rubber colloid in step S1 into the...

Embodiment 2

[0058] S1: Mix Eco flex silicone rubber 0050 and cross-linking agent at a mass ratio of 2:1, and stir at 25°C for 3 minutes, then transfer to a vacuum pump, vacuumize for 5 minutes to eliminate air bubbles, and take out to obtain a silicone rubber gel .

[0059] S2: The conductive yarn is prepared by covering the elastic yarn with the silver fiber yarn, and the elastic yarn is polyurethane elastic yarn.

[0060] S3: passing the lower end of the conductive yarn in step S2 sequentially through the liquid storage tube, the coating nozzle, the heat preservation channel, the first roller and the second roller, and finally fixing it on the yarn collecting roller. Wherein, the coating nozzle is circular with a caliber of 1 mm. By controlling the caliber of the coating nozzle, the thickness of the silicone rubber coating on the conductive yarn is controlled, and the coating process is made more uniform. The temperature of the heat preservation channel is 100°C.

[0061] S4: Inject t...

Embodiment 3

[0067] In this example, a triboelectric fabric is prepared, which is prepared by using the conductive yarn prepared in Example 2. Reference attached Figure 5 , the conductive yarn is woven with one or more of plain weave, twill weave, satin weave, warp knitting and weft knitting to obtain a triboelectric fabric with a size of 5cm×5cm. This triboelectric fabric accumulates charges on the surface of the triboelectric fabric during the contact and separation process with human skin and clothing fabrics, so it can also be used as a wearable fabric sensor for a flexible triboelectric nanogenerator. The fabric is placed on the joints of the human body, such as knee joints, elbow joints, etc., and can monitor the range of motion and frequency of motion of the joints in real time.

[0068] Reference attached Figure 4 , the triboelectrification fabric and the conductive film with good electropositive property are contacted and separated. The conductive film 13 is a PET film with a ...

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Abstract

The invention discloses composite yarn and a preparation method and application thereof. The composite yarn comprises conductive yarn and a silicone rubber coating covering the surface of the conductive yarn; and the silicone rubber coating is used for triboelectrification, and the conductive yarn is used as an output electrode. The composite yarn can be applied to the preparation of a triboelectric nano-generator or a wearable fabric sensor. The preparation method of the composite yarn comprises the following steps that a cross-linking agent and a silicone rubber prepolymer are mixed uniformly, and then transferred into a vacuum pump for vacuumizing to obtain silicone rubber colloid; the silicone rubber colloid is loaded into a liquid storage pipe connected with a coating nozzle, and thesurface of the conductive yarn is coated in the process of pulling the conductive yarn fed into the liquid storage pipe out of the coating nozzle; and the coated yarn passing through the coating nozzle is solidified to form the composite yarn. The preparation method of the composite yarn can continuously obtain a large amount of composite yarn at a time.

Description

technical field [0001] The invention relates to the technical field of continuous production of yarn coating, in particular to a composite yarn and its preparation method and application. Background technique [0002] With the rapid development of smart fabrics, how to provide portable and durable energy supply for wearable devices has become one of the problems to be solved urgently. Portable energy storage devices such as lithium batteries and supercapacitors have problems such as limited storage capacity, short service life, and the need for regular charging, so they cannot meet the requirements of wearable devices. [0003] In recent years, triboelectric nanogenerator (TENG) has developed into an important technical means to convert tiny mechanical energy into electrical energy. This technology can harvest tiny mechanical energy through the coupling of contact acting electricity and electrostatic induction. Triboelectric nanogenerators have the advantages of high energ...

Claims

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Application Information

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IPC IPC(8): D06B3/06D06B15/00D06B23/04D02G3/04D02G3/44D06M15/643H02N1/04D06M101/32D06M101/30
CPCD06B3/06D06B15/00D06B23/04D02G3/04D02G3/441D06M15/643H02N1/04D06M2101/32D06M2101/30D10B2331/04D10B2101/20D10B2331/10
Inventor 方剑曹郁英邵浩林童
Owner SUZHOU UNIV
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