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MXene/ink high-sensitivity sensor free of high-valence metal ions and preparation method thereof

A high-priced metal ion, high-sensitivity technology, applied in the field of sensors, can solve the problems of viscosity increase, ink property influence, sensor sensitivity and data accuracy, etc. Effect

Inactive Publication Date: 2020-08-28
SHENYANG AEROSPACE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention provides another idea of ​​uniformly dispersing MXene, solves the problem of affecting sensor sensitivity and data accuracy caused by the presence of high-valent metal ions, and solves the problem caused by adding polymer chelating agents and high-valent metal ions. The influence of ink properties, such as causing problems such as increased viscosity

Method used

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  • MXene/ink high-sensitivity sensor free of high-valence metal ions and preparation method thereof
  • MXene/ink high-sensitivity sensor free of high-valence metal ions and preparation method thereof
  • MXene/ink high-sensitivity sensor free of high-valence metal ions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Weigh 0.1 g of MXene powder, immerse 2 g of DMSO in MXene powder, add MXene to DMSO and stir magnetically for 30 min, ultrasonically disperse the mixed solution for 10 min, and centrifuge (3000 r / min) for 20 min to remove impurities. Repeat the above stirring, ultrasonic dispersion, centrifugation, and impurity removal steps three times. The ultrasonic power is respectively 100W, 90W, and 80W to completely disperse MXene in DMSO. Weigh 2.5g of solvent-based ink that does not contain high-valent metal ions and add it to the dispersion , after 2 hours of magnetic stirring and ultrasonic dispersion for 20 minutes, the MXene / ink was dried in a vacuum oven at 60°C for 1 hour. The mass ratio of MXene and ink is 1:25.

[0066]Put the prepared MXene / ink composite material into the syringe, and then put the cured composite material plate on the printer plate, and the printer will print the MXene / ink onto the composite material plate at a speed of no more than 4mm / sec, with a siz...

Embodiment 2

[0068] Change the quality of the ink to 7.5g, the mass ratio of MXene and the ink is 1:75, and the others are the same as in Example 1.

Embodiment 3

[0070] Change the quality of the ink to 0.5g, the mass ratio of MXene and the ink is 1:5, and the others are the same as in Example 1.

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Abstract

The invention belongs to the technical field of sensors, and relates to an MXene / ink high-sensitivity sensor free of high-valence metal ions and a preparation method thereof. According to the sensor,an MXene / ink composite structure is used as a sensing active part; the MXene / ink high-sensitivity sensor does not contain high-valence metal ions except an MXene material, MXene nanosheets with smallsizesaredispersed in ink through the dispersion liquid preparation and dispersion process, an MXene sensing network is formed in the ink, and the sensing sensitivity of a sensing active part can be greatly improved. Through a special dispersion process, the dispersion effect which can be achieved by adding high-valence metal ions can be achieved, and the problems caused by the high-valence metal ions are avoided. The MXene / ink high-sensitivity sensor disclosed by the invention can be conveniently coated on the surface of a test base material or a substrate through a simple forming mode (silk-screen printing, heat transfer printing, printer spray forming and the like); and the design method of the complex sensing array is simplified, the influence of high-valence metal ions on the sensing network is avoided, and the monitoring accuracy is enhanced.

Description

technical field [0001] The invention belongs to the technical field of sensors, and more specifically relates to a high-sensitivity MXene / ink sensor without high-priced metal ions and a preparation method. Background technique [0002] Composite materials have become important structural materials in many advanced fields due to their excellent mechanical properties. The detection of the structural integrity of the composite material and the prediction of the remaining life of the specimen can avoid the sudden failure of the composite material. At present, strain gauges and fiber optic sensors are widely used in various fields of engineering for monitoring and damage detection of critical infrastructure, but they may also form defects in composite material structures, resulting in cracks and damage to composite components. Therefore, it is necessary to develop new techniques to monitor the damage status of composite structures. [0003] Two-dimensional materials have attrac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/16G01L1/18G01B7/16G01K7/16B41F15/08B41F15/14B41F16/00B41J29/38C09D11/30C09D11/38C09D11/03
CPCB41F15/08B41F15/14B41F16/00B41J29/38C09D11/03C09D11/30C09D11/38G01B7/20G01D5/16G01K7/16G01L1/18
Inventor 卢少微李勃翰张璐马克明王晓强刘兴民马承坤李伟
Owner SHENYANG AEROSPACE UNIVERSITY
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