A capacitor distributed carbon fiber composite board and its preparation method and application

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

Active Publication Date: 2022-05-17
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A capacitor distributed carbon fiber composite board and its preparation method and application
  • A capacitor distributed carbon fiber composite board and its preparation method and application
  • A capacitor distributed carbon fiber composite board and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] In this embodiment, such as Figure 3The capacitor distributed carbon fiber composite board shown in the figure is 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 inserting enamelled wires into 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 inserting enamelled silk into the carbon fiber cloth at weft intervals, and the third carbon fiber layer 5 includes one or two layers of carbon fiber cloth. In this embodiment, in the extreme case of longitude and latitude, the enamelled wire of the first sensing fiber layer 2 and the enamelled wire of the second sensing f...

Embodiment 2

[0067] In this embodiment, such as Figure 2 The capacitance distributed carbon fiber composite board is 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 inserting enamelled wires into 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 inserting enamelled silk into the carbon fiber cloth at weft intervals, 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 fiber spacing in th...

Embodiment 3

[0069] In this embodiment, such as Figure 4 The capacitive 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 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 inserting enamelled wires into 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 inserting enamelled silk into the carbon fiber cloth at weft intervals, 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 the se...

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Abstract

The invention provides a capacitor-distributed carbon fiber composite board and a preparation method and application thereof, which belong to the field of carbon fiber composite materials. The carbon fiber composite board includes: a carbon fiber layer encapsulated by epoxy resin and a sensing fiber layer, and a sensing fiber layer is arranged between two carbon fiber layers; the carbon fiber layer includes carbon fiber cloth, and the sensing fiber The layer includes enamelled wire. The capacitance distributed carbon fiber composite board disclosed by the invention has low influence on rigidity, can bear greater impact force, and has higher anti-interference ability and sensitivity. The carbon fiber composite plate provided by the invention has excellent mechanical properties and can be used as an inner plate of an automobile or a surface of an spacecraft. The invention also discloses a method for preparing the above-mentioned carbon fiber composite board and a sensor prepared by using the carbon fiber composite board. The force detection space accuracy of the sensor is as small as 0.01mm ‑2 , and can also be applied to human-computer interaction scenarios such as touch panels.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(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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