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

A micro-bubble generator, carbon nanotube technology, applied in printing and other directions, can solve problems such as high power consumption, and achieve the effects of low power consumption, improved quality, and high integration density

Active Publication Date: 2011-08-10
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) Adopt glass as the cover plate 2, and carry out surface treatment and cleaning to the glass cover plate;

[0082] (2) The carbon nanotube microbubble generator is prepared on the cover plate 2, and the process is as follows:

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

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

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

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

[0087] (2.5) Apply an AC voltage of 1MHz and 8V between the gold electrodes 11 and 22 on the cover plate 2, drop the suspension of carbon nanotubes between the electrodes with a micro-syringe, and when the ...

Embodiment 2

[0132] (1) Glass is used as the cover plate 2, and the cover plate 2 is subjected to surface treatment and cleaning;

[0133] (2) The carbon nanotube microbubble generator is prepared on the cover plate 2, and the process is as follows:

[0134] (2.1) Adopt sputtering titanium to form a titanium film with a thickness of 30nm;

[0135] (2.2) Adopt sputtering gold to form a gold film with a thickness of 300nm;

[0136] (2.3) Forming gold electrodes 11, 12 using the existing lift-off process (lift-off), the distance between the gold electrodes 11, 12 is 1 μm;

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

[0138] (2.5) 0.5MHz, 5V AC voltage is loaded between the gold electrodes 11 and 12 on the cover plate 2, and the carbon nanotube suspension is dropped between the electrodes with a micro-syringe. When the solvent evaporates completely, the...

Embodiment 3

[0157] (1) Glass is used as the cover plate 2, and the cover plate 2 is subjected to surface treatment and cleaning;

[0158] (2) The carbon nanotube microbubble generator is prepared on the cover plate 2, and the process is as follows:

[0159] (2.1) Adopt sputtering titanium to form a titanium film with a thickness of 30nm;

[0160] (2.2) Adopt sputtering gold to form a gold film with a thickness of 300nm;

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

[0162] (2.4) Mix carbon nanotubes 13 with a diameter of 10 to 30 nm and absolute ethanol solvent at a ratio of 0.05 mg / ml, and disperse the carbon nanotubes uniformly through ultrasound;

[0163] (2.5) 0.8MHz, 10V AC voltage is loaded between the gold electrodes 31 and 32 on the glass substrate 1, and the carbon nanotube suspension is dropped between the electrodes with a micro-injector. When the solvent evaporates comp...

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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 micro-electromechanical systems, and in particular relates to a printing head based on a double carbon nanotube micro-bubble generator and a preparation method thereof. technical background [0002] Inkjet printing imaging technology has become the preferred color hard copy technology for large-format digital inkjet printing, digital photo printing, digital printing, digital color proofing, and home and office color output systems, and has been widely used and achieved great commercial success. In addition to inkjet printing, jet printing technology can also provide non-contact micro-dispensing of various liquids, which has a very wide range of applications, such as: biofluid printing, making color filters for liquid crystal displays, digitally making PCBs, drug injections and Fuel injection and more. It is also expected to provide a bottom-up, simple and effective implementation for the construction of ...

Claims

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Application Information

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Patent Type & Authority Patents(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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