Sensitivity-adjustable touch flexible sensor and manufacturing method thereof

A flexible sensor and manufacturing method technology, applied in the direction of instruments, measuring devices, measuring forces, etc., can solve the problems of high sensitivity, affecting the bonding stability and mechanical robustness of flexible sensors and contact objects, and being difficult to achieve, and achieve high Effects of sensitivity, excellent stretchability and sensitivity

CN113959604APending Publication Date: 2022-01-21JILIN UNIV
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-01-21

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a sensitivity-adjustable touch flexible sensor, which adopts an extensible flexible material and a preparation method of spray, so that the flexible touch sensor has excellent stretchability and sensitivity. A carbon nano tube grid structure with nano through micropore characteristics can be formed by adopting a spraying and vacuum drying film forming method, and the change of the nano tube grid structure can be caused by weak contact, so that the sensor has high sensitivity; the adding proportion of the adopted mixed elastic materials AUD and tBA is adjustable, and the mechanical characteristics and sensitivity of the sensor can be controlled by adjusting the material proportion; the rotating shaft can be replaced by an object with any geometric shape, and in-situ manufacturing of flexible sensing units on the surfaces of various irregular objects can be achieved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of polymer composite materials, in particular to a tactile flexible sensor with adjustable sensitivity and a manufacturing method thereof. Background technique

[0002] In the past ten years, the enthusiasm for research on flexible sensors has been increasing day by day. As a substitute for traditional electronic devices, flexible sensors have the advantages of strong flexibility, stretchability and light weight.

[0003] However, the existing manufacturing technologies for flexible electronic devices are mostly suspension coating, injection molding, and 3D printing. The manufacturing process is relatively complicated, and it is difficult to achieve high structural precision and high sensitivity. In addition, the above-mentioned manufacturing processes such as suspension coating, injection molding and 3D printing are difficult to achieve in-situ manufacturing on the surface of the original object, which affects the bo...

Examples

Embodiment 1

[0045] Embodiment 1 Manufacture of adjustable sensitivity tactile flexible sensor

[0046] 1a. Firstly, the conductive particle carbon nanotubes and the organic solvent dichloromethane were mixed at a mass ratio of 1:9, and uniformly dispersed for 3 hours by means of ultrasonic probe dispersion to obtain conductive ink. The ratio of AUD base material (Ebecryl 8413) and tBA diluent is 1:1, and the photoinitiator TPO is 5%, so that the viscosity after mixing is lower than 200cP to facilitate spraying.

[0047]2a. Pour the mixed elastic material into the microporous spray valve with a nozzle diameter of 0.3mm. Driven by the program, the rotating shaft is rotated according to the specified speed and direction, and the spray valve is sprayed evenly according to the pre-programmed path. Microporous spray valve nozzle 25G, pressure 0.15Mp, distance 100mm. After spraying, use a wavelength of 365nm and a dose of 30uW / cm 2 The sprayed thin layer is cured by the advanced ultraviolet li...