A Method for Fabricating Nanoscale Electrofluidic Nozzles Using Structure-Inducing Method

A nanoscale, structure-induced technology, applied in nanotechnology, coating devices, additive processing, etc., can solve the problems of complex process and high cost of nanoscale electric jet needles, and achieve simple preparation process, low cost, and convenient The effect of the operation

Active Publication Date: 2020-11-03
JILIN UNIV
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to propose a new method for preparing nanoscale electrojet nozzles by using the structure induction method in view of the problems of high cost and complicated process for preparing nanoscale electrojet nozzles by traditional methods

Method used

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  • A Method for Fabricating Nanoscale Electrofluidic Nozzles Using Structure-Inducing Method
  • A Method for Fabricating Nanoscale Electrofluidic Nozzles Using Structure-Inducing Method

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Embodiment Construction

[0017] The specific implementation manner of the patent of the present invention will be described in detail below in conjunction with the technical scheme and accompanying drawings.

[0018] 1. Fabrication of PMMA substrates with nanoscale electrofluidic needle-induced patterns

[0019] (1) Cut out a PMMA plastic substrate 1 of 4×5 cm by laser cutting. After washing and drying, such as figure 1 As shown in a, nano-channels with a width and depth of about 500 nanometers are imprinted on it by hot pressing, and the nozzle nanostructure-induced pattern 2 is produced. The parameters of the hot pressing are: the hot pressing temperature is 150-200 degrees centigrade, the hot pressing pressure is 1.5-2 MPa, and the hot-pressing time is 15-20 minutes.

[0020] (2) Put the PMMA substrate with the nanostructure induced pattern after hot pressing in the drying tower. Put trimethylchlorosilane inside the drying tower and evaporate for 5 to 10 minutes, so that the PMMA substrate with ...

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Abstract

The invention relates to preparation of a 3D printer spray needle, in particular to a method for preparing a nanoscale electric jet spray needle through a structure inducing method. A PMMA two-dimensional channel is adopted as an inducing pattern, an electric jet spray needle nanometer channel is prepared by one step through a spin-coating PDMS method, and the prepared nanometer channel has the depth and width of about 60 nanometers. The method for preparing the whole spray needle includes the three steps of preparing a PMMA substrate with the nanoscale electric jet spray needle inducing pattern, preparing the electric jet spray needle nanometer channel through PDMS whirl coating, and packaging the nanoscale electric jet spray needle.

Description

technical field [0001] The invention relates to the preparation of nozzles for 3D printers, in particular to a nanoscale electro-jet nozzle made of PDMS prepared by a structure induction method. Background technique [0002] The mainstream 3D printing methods include fused deposition rapid prototyping, photocuring molding, three-dimensional powder bonding, selective laser sintering, sub-entity manufacturing and bimolecular polymerization methods. At present, only bimolecular polymerization can print submicron structures, but bimolecular polymerization equipment is extremely expensive, and the materials used for bimolecular polymerization can only be photocurable materials, so bimolecular polymerization 3D printing methods are difficult to popularize. [0003] Electrojet printing is usually used for two-dimensional submicron / nanostructure printing. It uses liquid under the action of electric field force, gravity, surface tension and other multi-physical fields to form a jet a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/209B33Y30/00B82Y40/00
CPCB29C64/209B33Y30/00B82Y40/00
Inventor 殷志富姜新岩王维航于腾飞
Owner JILIN UNIV
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