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Capacitance distribution type carbon fiber composite board and preparation method and application thereof

A carbon fiber and composite board technology, applied in the direction of layered products, instruments, and force measurement, can solve the problems of mechanical properties, difficult high-strength service process, and lack of carbon fiber composite materials, etc., to achieve tight interface, simple steps, and reduce combined area effect

Active Publication Date: 2021-09-28
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of combining electrical detection fibers and carbon fiber materials by weaving technology is difficult to apply to high-strength service processes, which will affect the mechanical properties of the structure
[0005] In summary, there is a lack of a carbon fiber composite material for distributed online structural measurement in application scenarios requiring high precision and high mechanical properties.

Method used

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  • Capacitance distribution type carbon fiber composite board and preparation method and application thereof
  • Capacitance distribution type carbon fiber composite board and preparation method and application thereof
  • Capacitance distribution type carbon fiber composite board and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0061] In this example, if image 3 The capacitance-distributed carbon fiber composite board shown has a five-layer structure, specifically including: the first carbon fiber layer 1, the first sensing fiber layer 2, the second carbon fiber layer 3, the second sensing fiber layer 4, and the third carbon fiber layer 5 , the first carbon fiber layer 1 includes at least one or two layers of carbon fiber cloth, the first sensing fiber layer 2 is formed by interspersing enamelled wire in the carbon fiber cloth at intervals, and the second carbon fiber layer 3 includes one or two layers of carbon fiber cloth, The second sensing fiber layer 4 is formed by interleaving enamelled silk in the carbon fiber cloth at intervals in the weft direction, and the third carbon fiber layer 5 includes one or two layers of carbon fiber cloth. In this embodiment, taking the extreme case of the warp and weft directions, the enameled wires of the first sensing fiber layer 2 and the enameled wires of the...

Embodiment 2

[0067] In this example, if figure 2 The capacitance distributed carbon fiber composite board has a five-layer structure, specifically including: the first carbon fiber layer 1, the first sensing fiber layer 2, the second carbon fiber layer 3, the second sensing fiber layer 4, the third carbon fiber layer 5, the first The carbon fiber layer 1 includes at least one or two layers of carbon fiber cloth. The first sensing fiber layer 2 is formed by interspersing the enamelled wire in the carbon fiber cloth at intervals. The second carbon fiber layer 3 includes one or two layers of carbon fiber cloth. The sensory fiber layer 4 is formed by interleaving enamelled silk in the carbon fiber cloth at intervals in the weft direction, and the third carbon fiber layer 5 includes one or two layers of carbon fiber cloth. In this embodiment, the included angle between the warp sensing fiber 6 and the weft sensing fiber 7 is 90°. When the impact force acts on the composite board, the distance...

Embodiment 3

[0069] In this example, if Figure 4The capacitance distributed carbon fiber composite board has a five-layer structure, specifically including: the first carbon fiber layer 1, the first sensing fiber layer 2, the second carbon fiber layer 3, the second sensing fiber layer 4, the third carbon fiber layer 5, the A carbon fiber layer 1 includes at least one or two layers of carbon fiber cloth, the first sensing fiber layer 2 is formed by enamelled wire interspersed in the carbon fiber cloth at intervals, the second carbon fiber layer 3 includes one or two layers of carbon fiber cloth, the second The sensing fiber layer 4 is formed by interleaving enamelled silk in the carbon fiber cloth at intervals in the weft direction, and the third carbon fiber layer 5 includes one or two layers of carbon fiber cloth. In this embodiment, the angle between the first sensing fiber layer 2 and the second sensing fiber layer 4 is 45°, and the enamelled wire of the second sensing fiber layer 4 is...

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Abstract

The invention provides a capacitance distribution type carbon fiber composite board and a preparation method and application thereof, and belongs to the field of carbon fiber composite materials. The carbon fiber composite board comprises carbon fiber layers packaged by epoxy resin and sensing fiber layers, wherein one sensing fiber layer is arranged between the two carbon fiber layers; the carbon fiber layer comprises carbon fiber cloth, and the sensing fiber layer comprises enameled wires. The capacitance distributed carbon fiber composite board disclosed by the invention has low influence on rigidity, can bear larger impact force, and has relatively high anti-interference capability and sensitivity. The carbon fiber composite board provided by the invention is excellent in mechanical property and can be used as an automobile inner board or a spacecraft surface. The invention further discloses a preparation method of the carbon fiber composite board and a sensor prepared by using the carbon fiber composite board. The force detection space precision of the sensor can reach 0.01 mm<-2> to the minimum, and the carbon fiber composite board can also be applied to human-computer interaction scenes such as a touch panel.

Description

technical field [0001] The invention belongs to the field of carbon fiber composite materials, and in particular relates to a capacitor distributed carbon fiber composite board, a preparation method and application thereof. Background technique [0002] Carbon fiber composite materials have the advantages of corrosion resistance, fatigue resistance, high specific strength, high specific modulus, etc., and have been widely used in aerospace, transportation, energy construction and other fields. Because it is generally used as a high-strength material in various complex environments, researchers are committed to studying the forming control of carbon fiber composite materials and online monitoring of the application process. With the development of science and technology, pressure sensing fiber has been widely studied as a one-dimensional smart device. It has the advantages of miniaturization, excellent sensitivity and integration, and can be applied to distributed online moni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B9/04B32B5/02B32B33/00G01L1/14
CPCB32B5/02B32B5/26B32B33/00G01L1/146
Inventor 陶光明周华民周何乐子欧阳静宇简艾嘉张峰嘉
Owner HUAZHONG UNIV OF SCI & TECH
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