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Magnetic particle elastic linear material as well as preparation method and application thereof

A technology of magnetic particles and elastic threads, applied in the field of functional materials and textile processing, can solve the problems of small changes in magnetic flux, the yarn body does not have high elastic ability, weak electromagnetic induction signals, etc., and achieves flexible and extensive application scenarios, convenient methods and flexible effects

Active Publication Date: 2022-07-08
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sensing part of this kind of electromagnetic induction type power generation flexible fabric is limited to the user's arm or leg, which cannot meet the needs of self-powered electromagnetic sensing in other parts.
At the same time, the magnetic powder used in the patented magnetic fabric is evenly distributed in the yarn body, and the yarn body does not have high elasticity, so when the yarn in the patent is used for stretching and deformation to generate electricity, the magnetic flux of the elastic stretching of the yarn body Small change, weak electromagnetic induction signal

Method used

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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  • Magnetic particle elastic linear material as well as preparation method and application thereof
  • Magnetic particle elastic linear material as well as preparation method and application thereof
  • Magnetic particle elastic linear material as well as preparation method and application thereof

Examples

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preparation example Construction

[0049] The preparation method further includes: weaving the elastic linear material of the magnetic particle body obtained in step S2 to obtain an elastic magnetic particle wire or an elastic magnetic particle rope.

[0050] Specifically, taking the polyurethane (TPU) film as an example, a preparation method of the elastic magnetic grain yarn is:

[0051] (1) Cut the translucent TPU film with a thickness of 0.02mm into strips with a width of 25mm, and feed the micron-level magnetic powder into a fixed-volume slot-shaped 3D printing mold;

[0052] (2) Upside down the mold containing the magnetic powder on the TPU film to achieve the purpose of feeding the magnetic powder material uniformly and quantitatively, and then fold the TPU film in half to wrap the magnetic particles and form a new package;

[0053] (4) Feed the TPU strip package wrapped with magnetic powder into the front roller of the roving frame for twisting into yarn, the rotating speed of the roving frame is 300r / m...

Embodiment 1

[0058] see Figure 11 As shown in the figure, a preparation process of the elastic linear material of the magnetic particle body specifically includes the following steps:

[0059] Step 101, preparation of elastic non-woven fabric strip (film).

[0060] The industrially produced surface materials such as elastic non-woven fabrics (films) are cut into elastic strips with a linear density of 5-1000 g / km by a cutting machine, and each strip is wound on a bobbin to form an elastic strip. Comes with bobbins.

[0061] Step 102, wrapping the magnetic particles in an elastic non-woven strip (film) to prepare a magnetic material pre-packaged aggregate.

[0062] Specifically, the micro-nano magnetic particle material with a particle size ranging from 0.05 μm to 500 μm is placed into the elastic non-woven fabric strip (film) cut by the cutting machine provided in step 101, and the micro-nano magnetic particle material is used. The mass percentage of the prepackage aggregate is formed ...

Embodiment 2

[0071] see Figures 5 to 9 As shown, an elastic magnetic particle slub yarn is prepared by the following steps:

[0072] (1) Cut the translucent TPU film with a thickness of 0.02mm into strips with a width of 25mm, and feed the micron-level magnetic powder into a fixed-volume slot-shaped 3D printing mold;

[0073] (2) Upside down the mold containing the magnetic powder on the TPU film to achieve the purpose of feeding the magnetic powder material uniformly and quantitatively, and then fold the TPU film in half to wrap the magnetic particles and form a new package;

[0074](4) Feed the TPU strip package wrapped with magnetic powder into the front roller of the roving frame for twisting into yarn, the rotating speed of the roving frame is 300r / min, the twist is set to 49T / m, and the fineness is 30~3000tex Polyurethane Magnetic Grain Yarn.

[0075] The polyurethane magnetic particle yarn is twisted or braided to obtain multi-strand polyurethane magnetic particle wires or ropes....

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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Abstract

The invention provides a magnetic particle elastic linear material as well as a preparation method and application thereof. And compounding the magnetic particle material with the elastic matrix to obtain the magnetic particle elastic linear material. The magnetic induction lines of the electric conductor and the magnetic particle elastic linear material are arranged in an intersecting manner, and the magnetic particle elastic linear material is stretched or compressed to drive the magnetic particle material to move, so that the magnetic induction lines of the magnetic particle material displace, and the electric conductor and the magnetic induction lines cut the magnetic induction lines to generate electromotive force. Therefore, self-powered electromagnetic sensing can be realized, and the application scene limitation is small. When the magnetic particle elastic linear material is an elastic magnetic particle yarn, a thread or a rope, the magnetic particle elastic linear material can be used for preparing a wearable self-powered electromagnetic sensing fabric, the stress condition of the fabric is detected through electromagnetic sensing, and electric energy can be generated through deformation of the fabric.

Description

technical field [0001] The invention relates to the technical field of functional materials and textile processing, in particular to a magnetic particle body elastic linear material and a preparation method and application thereof, in particular to a self-supplied electromagnetic particle body elastic linear material and a preparation method thereof and a self-powered electromagnetic transmission applications in the sense field. Background technique [0002] The current smart wearable system needs a large number of sensors in order to detect a series of physiological states such as human movement and health. At the same time, with the increase of the number of sensors, the problem of energy supply and battery life has become a major obstacle to the development of smart wearables. In the absence of breakthrough development of energy storage batteries, self-supply has become a new opportunity to promote the rapid development of smart sensors and small electronic devices. Elec...

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): D02G3/32D02G3/44D01F1/10H02K35/02
CPCD02G3/328D02G3/44D01F1/10H02K35/02D10B2331/02D10B2331/10D10B2321/02D10B2201/22
Inventor 夏治刚刘佳鑫苏彬
Owner WUHAN TEXTILE UNIV
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