Flexible strain sensor based on carbon nano-tubes and preparation method thereof

A technology of strain sensor and carbon nanotubes, applied in nanotechnology for sensing, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problem of strain sensor, low detection range, and low resolution and other problems, to achieve the effect of improving sensitivity, improving measurement range and high sensitivity

Active Publication Date: 2019-04-16
SOUTHEAST UNIV
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  • Abstract
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Problems solved by technology

Traditional strain sensors based on metals or semiconductors are inexpensive and widely used, but their disadvantages such as fragility, high density, low resolution,

Method used

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  • Flexible strain sensor based on carbon nano-tubes and preparation method thereof
  • Flexible strain sensor based on carbon nano-tubes and preparation method thereof
  • Flexible strain sensor based on carbon nano-tubes and preparation method thereof

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[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0024] like figure 1 and figure 2 As shown, the embodiment of the present invention provides a flexible strain sensor based on carbon nanotubes, including an epoxy resin layer 4 , a composite layer 3 and a multi-wall carbon nanotube layer 2 . The composite layer 3 is laid on the upper surface of the epoxy resin layer 4, and the composite layer 3 has protrusions 1 distributed in an array. The multi-walled carbon nanotube layers 2 are laid between the protrusions 1 and connect adjacent protrusions 1 . The composite layer 3 is made of epoxy resin multi-wall carbon nanotube composite material.

[0025] The protrusions 1 may be in the shape of a triangular prism, a triangular pyramid, a quadrangular pyramid or a hemisphere, etc. The lower parts of adjacent protrusions are connected, and a valley area is formed between the lower parts of the protru...

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Abstract

The invention discloses a flexible strain sensor based on carbon nano-tubes and a preparation method thereof. The flexible strain sensor comprises an epoxy resin layer, a composite layer and a multiwall carbon nano-tube layer; the composite layer is laid on an upper surface of the epoxy resin layer; the composite layer is provided with bulges in array distribution; the multi-wall carbon nano-tubelayer is laid among the bulges and connected with the adjacent bulges; the composite layer is made of the epoxy resin multi-wall carbon nano-tube composite material. The strain sensor has excellent sensitivity and wide measurement range; and meanwhile, the preparation method is simple and practicable.

Description

technical field [0001] The invention relates to a flexible strain sensor, in particular to a flexible strain sensor based on carbon nanotubes and a preparation method thereof. Background technique [0002] Strain sensors can monitor various deformations and find wide applications in motion detection, health monitoring, robotics, and damage detection. Traditional strain sensors based on metals or semiconductors are inexpensive and widely used, but their disadvantages such as fragility, high density, low resolution, and low detection range (typically less than 5%) cannot meet the stretchability, high sensitivity of modern strain sensors. , high demands on linearity and durability. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-sensitivity flexible strain sensor and a preparation method thereof. [0004] In order to solve the above technical problems, on the one hand, an embodiment of the present invention...

Claims

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Application Information

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IPC IPC(8): G01B7/16B82Y15/00B82Y30/00B82Y40/00
CPCB82Y15/00B82Y30/00B82Y40/00G01B7/18
Inventor 聂萌任翔宇艾鹭
Owner SOUTHEAST UNIV
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