Elastic guide wire and preparation method thereof

An elastic and wire technology, applied in the field of elastic wire and its preparation, can solve the problems of large resistance change rate, small fracture length, poor conductivity, etc., and achieve strong conductivity, high elongation, electrical stability and fatigue resistance Effect

Inactive Publication Date: 2016-10-12
SUZHOU CREATIVE CARBON NANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the elastic wires made of carbon nanotube fibers have good electrical conductivity, their breaking lengths are all less than 5%.
Moreover, the resistance change rate is large during the stretching process.
Therefore, how to rationally utilize the conductive properties of carbon nanotube fibers to solve the current dilemma of elastic wires in terms of poor conductivity, low elasticity, large resistance change rate during stretching, and fatigue resistance is also an important issue.

Method used

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  • Elastic guide wire and preparation method thereof
  • Elastic guide wire and preparation method thereof
  • Elastic guide wire and preparation method thereof

Examples

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preparation example Construction

[0036] see figure 1 , figure 1 It is a flowchart of a method for preparing an elastic wire according to an embodiment of the present invention. The preparation method comprises steps:

[0037] fixing the first end and the second end of the pre-stretched elastic fibers;

[0038] gradually winding the carbon nanotube film on the elastic fiber at a first helix angle along the direction from the first end to the second end to form a first layer of carbon nanotube film;

[0039] Obtain the elastic wire.

[0040] The preparation method of the elastic wire according to one embodiment of the present invention, by pre-stretching the elastic fiber, and then winding the carbon nanotube film on the pre-stretched elastic fiber, the elastic wire can be made to have high elasticity and at the same time , and the contact point of the carbon nanotube film will not be greatly attenuated along with the stretching, thereby reducing the resistance change rate during the stretching process; and...

Embodiment 1

[0081] see figure 2 , figure 2 It is a flowchart of the preparation method of the elastic wire according to the first embodiment of the present invention, and the preparation method includes steps:

[0082] Fixing the first end and the second end of the pre-stretched elastic fiber, wherein the pre-stretch rate of the elastic fiber is about 30%;

[0083] gradually winding the carbon nanotube film on the elastic fiber at a first helix angle along the direction from the first end to the second end to form a first layer of carbon nanotube film;

[0084] Winding the carbon nanotube film on the first layer of carbon nanotube film with a second helix angle to form a second layer of carbon nanotube film; wherein, in the direction from the first end to the second end, The helical direction of the second layer of carbon nanotube film is opposite to the helical direction of the first layer of carbon nanotube film, and the second helix angle is the same as the first helix angle and is...

Embodiment 2

[0089] see Figure 4 , Figure 4 It is a flow chart of the preparation method of the elastic wire according to the second embodiment of the present invention, and the preparation method includes steps:

[0090] Fixing the first end and the second end of the pre-stretched elastic fiber, wherein the pre-stretch rate of the elastic fiber is about 30%;

[0091] gradually winding the carbon nanotube film on the elastic fiber at a first helix angle along the direction from the first end to the second end to form a first layer of carbon nanotube film;

[0092] Coating an organic solvent on the surface of the first layer of carbon nanotube film, heating after maintaining for a period of time;

[0093] Winding the carbon nanotube film on the first layer of carbon nanotube film with a second helix angle; wherein, in the direction from the first end to the second end, the second layer of carbon nanotube film The helical direction of the carbon nanotube film is opposite to the helical ...

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Abstract

The invention discloses an elastic guide wire and a preparation method thereof. The preparation method comprises the steps of: fixing a first end and a second end of a pre-stretched elastic fiber; gradually winding a carbon nanotube thin film on the elastic fiber along the direction from the first end to the second end at a first helix angle to form a first layer of carbon nanotube thin film; and obtaining the elastic guide wire. Compared with the prior art, the preparation method has the beneficial effects that the prepared elastic guide wire has high elasticity and high stretch rate (the stretch rate can reach 300%) by pre-stretching the elastic fiber and winding the carbon nanotube thin film on the pre-stretched elastic fiber; the elastic guide wire does not greatly attenuate a contact point of the carbon nanotube thin film along with stretching to reduce the resistance change rate in the stretching process; the preparation method is simple; the cost is low; and industrialization is facilitated.

Description

technical field [0001] The invention relates to the technical field of elastic wires, in particular to an elastic wire and a preparation method thereof. Background technique [0002] With the development of the Internet of Things and wearable technology, flexible and stretchable devices are the mainstream trend in the development of electronic devices. Among them, elastic wires are the key materials for the development of flexible devices, which have attracted widespread attention in recent years. [0003] At present, the elastic conductors used in the market are mainly various types of metal wires and silicon-based electronics, but the flexibility and elasticity of metal wires are poor, which shows more and more incompatibility in functional intelligent applications. Although silicon-based electronics have achieved a lot in terms of miniaturization, high integration and high speed, silicon-based circuit boards are based on a planar structure, which has the disadvantages of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/60H01L23/49
CPCH01L24/26H01L24/42H01L24/83H01L24/85H01L2224/42H01L2224/85
Inventor 陈威艳张骁骅赵静娜李清文
Owner SUZHOU CREATIVE CARBON NANOTECH
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