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A preparation method of a mechanical signal sensing rope

A rope and signal technology, applied in the field of new materials, can solve the problems of compounding and processing difficulties, agglomeration effect, etc., and achieve the effect of simple method, uniform deformation, sensitive and stable strain sensing ability

Active Publication Date: 2021-07-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon nanotubes are nanomaterials, which are prone to agglomeration effects, resulting in difficulties in compounding and processing, and have certain limitations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides a mechanical signal sensing rope, and the specific preparation steps are as follows:

[0025] Step 1: Cut the carbon nanotube film into strips with a length of 50 cm and a width of 3 cm, and twist them by twisting at the fixed end, and the yarn twist is 10 / cm to obtain a carbon nanotube film rolled yarn, which is then dipped in polyethylene. The two ends of the yarn are fixed in the alcohol resin solution for 1-3 s, and then placed in an oven for curing, the curing temperature is 60 °C, and the curing time is 6 h to obtain the carbon nanotube-coated yarn;

[0026] Wherein, the preparation of polyvinyl alcohol resin solution: take by weighing 5g polyvinyl alcohol particles (Japan Kuraray Co., Ltd., trade mark PVA205), solvent selects water and ethanol, and wherein the ratio of water and ethanol is 4: 1, measures the water of 80mL and 20 mL of ethanol, on a mixer at 95°C and a rotating speed of 400 r / min for 8 to 10 hours until the polyvinyl alcoh...

Embodiment 2

[0030] This embodiment provides a mechanical signal sensing rope, and the specific preparation steps are as follows:

[0031] Step 1: Cut the carbon nanotube film into strips with a length of 50 cm and a width of 3 cm, twist by twisting at the fixed end, the twist of the yarn is 10 / cm, to obtain the carbon nanotube film rolled yarn, and then polyimide Resin solution (Changshu Jiafa Chemical Co., Ltd., model: PI-84) for 1 to 3s, fix both ends of the yarn, place it in an oven to cure, cure at 80°C and cure for 2h to obtain a carbon nanotube coating yarn;

[0032] Step 2: the carbon nanotube-coated yarn obtained in step 1 is used as the core yarn, and the nylon filament (Hangzhou Wansi Lu Trading Co., Ltd.) with a diameter of 600 denier is selected as the covered yarn, one core yarn, six covered yarns. The strands were woven with a 90-1-16 spindle high-speed machine (Xuzhou Henghui Weaving Machinery Co., Ltd.) to obtain a mechanical signal sensing rope.

[0033] The tensile str...

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Abstract

A kind of preparation method of mechanical signal sensing rope, it is characterized in that, comprises the following steps: Step 1: carbon nanotube film is twisted to obtain carbon nanotube film rolling yarn, then dipped in polymer resin solution, obtains carbon nanotube film after curing Nanotube-coated yarn; step 2: use the carbon nanotube-coated yarn obtained in step 1 as a core yarn and a covering yarn to weave a rope structure to obtain a mechanical signal sensing rope. Under mechanical tension of the rope, the deformation of the carbon nanotube-coated yarn leads to an increase in its own resistance. By monitoring the resistance of the yarn, the force of the rope structure can be sensed. The method of the invention is simple, suitable for industrialized production, and has wide application prospects in the fields of military, civil, marine protection and the like.

Description

technical field [0001] The invention belongs to the field of new materials, and relates to a preparation method of a mechanical signal sensing rope. Background technique [0002] High-end rope nets are widely used in the field of navigation, and the reliability and stability of their structures are critical to the safety of ships and crew. Every year, accidents such as broken rope nets cause hundreds of millions of losses to fisheries and navigation safety. When the ship is docked, the anchor will be thrown on the bottom of the water to stabilize the hull, and the rope itself needs to bear a huge load. Once the fatigue limit is reached, the burst tension will cause a certain life threat to the crew. The ordinary fatigue detection device is due to its hard material. And the working environment has high requirements and it is difficult to meet the harsh marine environment. Therefore, a flexible rope is urgently needed, which can not only play the role of fixing the ship, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04C1/12D04C1/02D02G3/04D02G3/36D02G3/44D06M15/333D06M15/59
CPCD02G3/04D02G3/36D02G3/44D04C1/02D04C1/12D06M15/333D06M15/59D10B2101/12D10B2321/0211D10B2321/022D10B2331/02D10B2331/021D10B2331/04D10B2331/10D10B2401/04
Inventor 许福军冯江涵夏琪何艺刘晗郑佳琳徐丹瑶白耘菲周展
Owner DONGHUA UNIV
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