Jet-printing head based on double-carbon nanotube microbubble generator and preparation method thereof

A technology of micro-bubble generator and carbon nanotubes, which is applied in printing and other directions, can solve the problems of high power consumption and achieve low power consumption, high integration density and wide application prospects

Active Publication Date: 2010-09-01
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The micro-bubble generator is the core of the thermal printing system. At present, most of the micro-heaters based on traditional metal materials are used, and the power consumption is relatively large.

Method used

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  • Jet-printing head based on double-carbon nanotube microbubble generator and preparation method thereof
  • Jet-printing head based on double-carbon nanotube microbubble generator and preparation method thereof
  • Jet-printing head based on double-carbon nanotube microbubble generator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] (1) Use glass as the cover plate 2. Surface treatment and cleaning of the glass cover plate;

[0082] (2) Prepare the carbon nanotube microbubble generator on the cover plate 2. The process is:

[0083] (2.1) Use electron beam to evaporate titanium to form a titanium film with a thickness of 20nm;

[0084] (2.2) Use electron beam to evaporate gold to form a gold film with a thickness of 400nm;

[0085] (2.3) The gold electrodes 11 and 12 are formed using the existing lift-off process (lift~off), and the distance between the gold electrodes 11 and 12 is 5 μm;

[0086] (2.4) Mix the carbon nanotubes 13 with a diameter of 10-30nm with the absolute ethanol solvent at a ratio of 0.01mg / ml, and then uniformly disperse the carbon nanotubes by ultrasound;

[0087] (2.5) Load 1MHz, 8V AC voltage between the gold electrodes 11 and 22 on the cover plate 2, and use a micro syringe to drop the carbon nanotube suspension between the electrodes. When the solvent is completely evaporated, the car...

Embodiment 2

[0132] (1) Use glass as cover plate 2, and perform surface treatment and cleaning on cover plate 2;

[0133] (2) Prepare the carbon nanotube microbubble generator on the cover plate 2. The process is:

[0134] (2.1) Sputtering titanium is used to form a titanium film with a thickness of 30nm;

[0135] (2.2) Sputtering gold is used to form a gold film with a thickness of 300nm;

[0136] (2.3) The gold electrodes 11 and 12 are formed by the existing lift-off process (lift~off), and the distance between the gold electrodes 11 and 12 is 1 μm;

[0137] (2.4) Mix the carbon nanotubes 13 with a diameter of 10-30nm and anhydrous ethanol solvent at a ratio of 0.005mg / ml, and make the carbon nanotubes uniformly dispersed by ultrasound;

[0138] (2.5) Load 0.5MHz, 5V AC voltage between the gold electrodes 11 and 12 on the cover plate 2, and use a micro syringe to drop the carbon nanotube suspension between the electrodes. When the solvent is completely evaporated, the carbon nanotubes will Connect...

Embodiment 3

[0157] (1) Use glass as cover plate 2, and perform surface treatment and cleaning on cover plate 2;

[0158] (2) Prepare the carbon nanotube microbubble generator on the cover plate 2. The process is:

[0159] (2.1) Sputtering titanium is used to form a titanium film with a thickness of 30nm;

[0160] (2.2) Sputtering gold is used to form a gold film with a thickness of 300nm;

[0161] (2.3) The gold electrodes 11 and 12 are formed using the existing lift-off process (lift~off), and the distance between the gold electrodes 11 and 12 is 10 μm;

[0162] (2.4) Mix the carbon nanotubes 13 with a diameter of 10-30nm and anhydrous ethanol solvent at a ratio of 0.05mg / ml, and make the carbon nanotubes uniformly dispersed by ultrasound;

[0163] (2.5) Apply a 0.8MHz, 10V AC voltage between the gold electrodes 31 and 32 on the glass substrate 1, and use a micro syringe to drop the carbon nanotube suspension between the electrodes. When the solvent is completely evaporated, the carbon nanotubes wi...

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Abstract

The invention discloses a jet-printing head based on a double-carbon nanotube microbubble generator and a preparation method thereof. The jet-printing head comprises a carbon nanotube microbubble generator and a microfluid structure comprising a main channel, a capillary channel, a microcavity and a nozzle. The carbon nanotube microbubble generator and the microfluid structure are manufactured independently. A jet-printing head structure is prepared by adopting the silicon surfacing and bulk silicon processing technologies, wherein the silicon surfacing technology mainly comprises steps of manufacturing figures by photoetching, manufacturing a masking film by a magnetron sputtering technology, etching the masking film by wet process, and the like; and the bulk silicon processing technology mainly comprises the step of manufacturing the microfluid structure by combining the wet etching and dry etching. The double-carbon nanotube microbubble generator and the microfluid structure are jointed by an ultraviolet curing bonding method to form the whole jet-printing head structure. The invention has very high spatial resolution and frequency response and very low power consumption, eliminates the problem of secondary droplets, effectively enhances the quality of jet-printing figures, and has favorable superintegration potential, thereby having side application prospect in the advanced manufacturing field.

Description

Technical field [0001] The invention belongs to the technical field of microelectromechanical systems, and in particular relates to a jet printing head based on a double carbon nanotube microbubble generator and a preparation method thereof. technical background [0002] Inkjet imaging technology has become the preferred color hard copy technology for large-format digital inkjet, digital photo printing, digital printing, digital color proofing, and home and office color output systems. It has been widely used and has achieved great commercial success. In addition to inkjet printing, inkjet printing technology can also provide non-contact micro-distribution of a variety of liquids, which has a very wide range of applications, such as: biological fluid printing, production of color filters for liquid crystal displays, digital production of PCBs, drug injection and Fuel injection and so on. It is also expected to provide a bottom-up, simple and effective implementation scheme for b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/14B41J2/16
Inventor 周文利孙伟钧李宇鹏
Owner HUAZHONG UNIV OF SCI & TECH
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