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Stretchable elastic conductive wire harness at room temperature and its preparation method and application

A technology of tensile elasticity and elastic conductivity, applied in the direction of textiles and papermaking, yarn, fiber types, etc., can solve problems such as inability to shape, damage, and limited stretching and deformation capabilities of fabrics, and achieve the effect of recoverable deformation

Active Publication Date: 2022-04-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently reported flexible conductive fabric (CN106448849B, CN107209617A, CN108109715A, CN207070592U), although the main structure is also directly woven by conductive wire rod and elastic wire rod (or flexible wire rod), the overall stretching and deformation ability of the fabric is limited, and it cannot be finalized after deformation. , easy to be damaged by external forces such as pulling and friction, and the production process is relatively complicated and the application field is limited

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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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The invention provides a stretchable elastic conductive wire bundle at room temperature and a preparation method thereof. The stretchable elastic conductive wire bundle is pre-stretched and deformed by one or more polymer filaments having a shape memory effect and being elastic at room temperature Afterwards, it is braided with one or more conductive wires, and then the shape memory elastic polymer wire is driven to restore its shape by applying an excitation to cause the conductive wire to become unsteady into a wave shape; the stretchable elastic conductive wire bundle can be woven into a shape memory It is an elastic conductive fabric that can be stretched in one direction or two directions; the process of applying excitation to drive the pre-stretched polymer filament to restore its shape can be carried out before or after weaving the conductive fabric.

[0024] The stretchable elastic conductive wire harness at room temperature and its preparation method are: after ...

Embodiment 1

[0033] Example 1: A stretchable elastic conductive wire bundle at room temperature and its preparation method: the shape memory polyurethane wire with a diameter of 0.1 mm (its glass transition temperature is at 60° C.) is subjected to stretching pre-deformation treatment (stretching) at room temperature To 100% and then unload), weave it with 0.1 mm diameter enamelled copper wire to form a conductive wire bundle; use this conductive wire bundle to weave into cloth. Soaking the cloth in ethanol or water lowers the glass transition temperature of the polyurethane wire to below room temperature, causing the shape to recover and become a highly elastic wire, while the copper wire is destabilized into a wavy shape, making a two-way elastically stretchable conductive cloth. Made of cloth, stretched 80% in one direction or two directions, the copper wire will not be damaged, and the conductivity will not change.

Embodiment 2

[0034] Example 2: A stretchable elastic conductive wire harness at room temperature and its preparation method: stretch and pre-deform elastic shape-memory polyurethane wires with a diameter of 0.08 mm at room temperature, such as stretching to 300% before unloading, and three strands Pre-stretched polyurethane filaments are woven with two 0.05 mm diameter carbon fiber filaments to form a conductive wire bundle; heating restores the shape of the polyurethane wire and causes the carbon fiber to become unsteady and wavy; use this conductive wire bundle to weave into a two-way stretchable elastic conductive cloth. The conductive fabric made can be stretched 50% elastically in one or two directions, the carbon fiber filaments will not be damaged, and the conductivity will not change.

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Abstract

The invention discloses a stretchable elastic conductive wire harness at room temperature and its preparation method and application, and relates to the field of preparation and application of conductive wire bundles. The stretchable elastic conductive wire bundle includes poly Object filaments and conductive filaments; the polymer filaments with shape memory effect and elastic at room temperature are pre-stretched and deformed and braided with the conductive filaments, and the pre-stretched and deformed polymer filaments are stimulated to make them shape recovery to obtain stretchable elastic conductive bundles. The conductive wire bundle prepared by the present invention has conductive function, high elasticity and shape memory effect, and the conductive wire bundle is used to prepare elastic shape memory conductive cloth, so that the prepared conductive cloth not only has conductivity, but also can maintain high elasticity in the whole process. Tensile deformation occurs and can be set, and the deformation can be restored under a certain excitation method.

Description

technical field [0001] The invention relates to a stretchable elastic conductive wire bundle at room temperature and a preparation method thereof, in particular to a room temperature stretchable elastic conductive wire bundle based on an elastic shape memory polymer, a preparation method and application thereof. Background technique [0002] The development of flexible conductive fabric technology has made it possible for a new generation of electronic devices that come into contact with the human body, such as antistatic textiles, electromagnetic wave shielding textiles, smart clothing that can record data such as body temperature, perspiration, and heartbeat, and anti-reconnaissance camouflage materials. [0003] Currently reported flexible conductive fabric (CN106448849B, CN107209617A, CN108109715A, CN207070592U), although the main structure is also directly woven by conductive wire rod and elastic wire rod (or flexible wire rod), the overall stretching and deformation abi...

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 Patents(China)
IPC IPC(8): D02G3/04D02G3/32D06M13/144D06M11/05D06M101/38
CPCD02G3/04D02G3/328D06M13/144D06M11/05D06M2101/38
Inventor 吴雪莲黄为民顾啸
Owner JIANGSU UNIV