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Graphite nano-sheet printing ink, and preparation method and use of antenna printed by using printing ink

A technology of graphite nanosheets and printing ink, which is applied in the field of antenna materials, can solve the problems of low conductivity and resistance to bending of printed antennas, and achieve a balance between preparation cost and conductivity, balance between preparation cost and product performance contradictory effect

Inactive Publication Date: 2018-10-23
HUARUIMOSHI DANYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The application provides a printing ink composed of graphite nanosheets and a method of using the printing ink to prepare a printed antenna. The prepared printed antenna has the advantages of bending resistance, scratch resistance, and high conductivity, and solves the problem of The problem of low conductivity or resistance to bending of traditional printed antennas made of carbon materials or metal materials effectively balances the contradiction between the preparation cost and conductivity of conductive antenna materials

Method used

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  • Graphite nano-sheet printing ink, and preparation method and use of antenna printed by using printing ink
  • Graphite nano-sheet printing ink, and preparation method and use of antenna printed by using printing ink
  • Graphite nano-sheet printing ink, and preparation method and use of antenna printed by using printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Composition of graphite nanosheet printing ink:

[0035]

[0036] Graphite nanosheets are prepared using the jet cavitation equipment disclosed in Chinese invention patent CN201110190763.3: use graphite and solvent (ethanol-water mixed solution, wherein the volume fraction of ethanol is 50%) to prepare a graphite mixed solution with a concentration of 10mg / ml, The graphite mixture was treated at a pressure of 30 MPa for 0.5 hour and then directly dried to obtain graphite nanosheets. The average thickness of the prepared graphite nanosheets is about 10nm, the maximum thickness is about 23nm, the proportion of sheets with a thickness less than 3.4nm is less than 8%, the average lateral size is about 8 microns, and the largest lateral size is about 11 microns.

[0037] Stir the various raw materials of the ink with a magnetic stirrer at a speed of 1000 rpm for 1 hour to mix them evenly to obtain graphite nanosheet printing ink; print the graphite nanosheet printing ink ...

Embodiment 2

[0040] Composition of graphite nanosheet printing ink:

[0041]

[0042] Graphite nanoplate adopts high-shear method to prepare: with graphite and solvent (isopropanol-water mixed solution, wherein the volume fraction of isopropanol is 60%) preparation concentration is the graphite dispersion liquid of 20mg / ml, the graphite dispersion liquid adopts A high-speed homogenizer was processed at a speed of 9500 rpm for 3 hours and then suction-filtered to obtain graphite nanosheets. The average thickness of the prepared graphite nanosheets is about 30nm, the maximum thickness is about 70nm, the proportion of sheets with a thickness less than 3.4nm is less than 6%, the average lateral size is about 10 microns, and the largest lateral size is about 40 microns.

[0043] The various raw materials of the ink are mixed and stirred by a high-speed mixer at a speed of 2000 rpm for 1 hour to make them evenly mixed to obtain a graphite nanosheet printing ink; the graphite nanosheet printin...

Embodiment 3

[0046] Composition of graphite nanosheet printing ink:

[0047]

[0048] Graphite nanosheets are prepared by jet cavitation equipment disclosed in Chinese invention patent CN201110190763.3: use graphite and solvent (acetone-water mixed solution, wherein the volume fraction of acetone is 70%) to prepare a graphite mixed solution with a concentration of 15 mg / ml , the graphite mixture was treated at a pressure of 20 MPa for 3 hours and then directly dried to obtain graphite nanosheets. The average thickness of the prepared graphite nanosheets is about 5nm, the maximum thickness is about 15nm, the proportion of sheets with a thickness less than 3.4nm is less than 17%, the average lateral size is about 5 microns, and the largest lateral size is about 8 microns.

[0049] Various raw materials of the ink were mixed and dispersed by a three-roll machine for 15 minutes to obtain a graphite nanosheet printing ink; the graphite nanosheet printing ink was printed on a PET film by scre...

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Abstract

The invention discloses a graphite nano-sheet printing ink, and a preparation method and a use of an antenna printed by using the printing ink. The printing ink comprises, by weight, 40-80 parts of graphite nano-sheets, 20-60 parts of resin, 1-40 parts of a solvent and 0.1-20 parts of an assistant. The method comprises the following steps: mixing the graphite nano-sheets, the resin, the solvent and the assistant according to corresponding parts by weight to obtain the graphite nano-sheet printing ink, printing with the graphite nano-sheet printing ink to form an antenna, and drying and compacting the antenna. The prepared graphite nano-sheet printed antenna can be used for wireless radiofrequency identification.

Description

technical field [0001] This application relates to but not limited to the field of antenna materials, in particular to but not limited to a graphite nanosheet printing ink and the preparation method and application of the antenna printed therefrom. Background technique [0002] Radio Frequency Identification (RFID) is a non-contact automatic identification technology. Through the radio waves emitted by the sensor, the information stored in the RFID electronic tag can be read within a certain distance. With the popularization and rapid development of RFID technology, further reducing the manufacturing cost of RFID electronic tags is a hot spot at present. RFID electronic tags include three parts: antenna, substrate and chip, among which the cost of RFID antenna accounts for about 30% of the total cost of electronic tags. The preparation methods of RFID antenna mainly include etching method, electroplating method and printing method, etc. Etching method and electroplating met...

Claims

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Application Information

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IPC IPC(8): C09D11/52
CPCC09D11/52
Inventor 沈志刚刘磊
Owner HUARUIMOSHI DANYANG CO LTD
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