WO2018126976A1

WO2018126976A1 - Liquid guiding and infiltrating device utilized in ink brush

Info

Publication number: WO2018126976A1
Application number: PCT/CN2017/119197
Authority: WO
Inventors: 王京霞; 刘捷; 徐国栋; 江雷
Original assignee: 北京赛特超润界面科技有限公司
Priority date: 2017-01-04
Filing date: 2017-12-28
Publication date: 2018-07-12
Also published as: CN108264017B; CN108264017A

Abstract

A liquid guiding and infiltrating device utilized in an ink brush comprises : a micro-liquid guiding pipe (3) comprising an end portion surrounded at the periphery thereof by a plurality of pen bristles (2) aligned so as to be mutually level. A plurality of protruding pen bristles (1) are arranged at the innermost portion of the mutually level pen bristles (2) and at intervals around the periphery of the micro-liquid guiding pipe (3). A vertical distance from a bristle tip of the mutually level pen bristles (2) to the end portion of the micro-liquid guiding pipe (3) is 4-7 mm. A vertical distance from a bristle tip of the protruding pen bristles (1) to the bristle tip of the mutually level pen bristles (2) is 1-2 mm. The device can uniformly infiltrate a micro-volume of a liquid onto two fibers completely, and can be used to draw on a plane an effective device comprising a super-fine and super-thin film having an arbitrary length. The device is simple in the operating principle and method and easy to implement, and can effectively resolve an issue of infiltration of a micro-volume of a liquid in a micro-liquid supply system.

Description

Brush type liquid guiding infiltration device

Technical field

The present invention relates to the field of micro-liquid infiltration devices, and in particular to a brush-type liquid guiding infiltration device.

Background technique

One-dimensional patterns such as micro-wires prepared by functional organic and inorganic phase materials have been widely used in general-purpose integrated optoelectronic devices, biosensors, and biological detection. The performance of these test devices is highly dependent on the patterned functional materials. Inspired by the control of brush ink transfer in traditional Chinese painting, liquid crystal materials of various functions, such as suspensions of quantum dots, small molecules, polymers and nanoparticles, can be directly written on the substrate and can keep the physicochemical properties intact. . Therefore, this bionic direct writing technology has important significance in the preparation of functional micropatterns and integrated functional devices.

However, the traditional brush has many defects: (1) the brush is written and painted after the ink, it can not draw lines infinitely, and no matter how much ink is smashed, the lines drawn by it begin to thicken, and the more The lighter the later, the thicker the film produced, and later thinner, which did not meet the requirements of practical applications. (2) The traditional brush is difficult to draw a film <1mm wide, which is difficult to meet the requirements of micro-patterns and integrated functional devices.

Summary of the invention

In order to solve the above problems, the present invention provides a conventional brush-type liquid guiding infiltration device which can be used for preparing a large-area ultra-fine ultra-thin film layer with good repeatability, uniform thickness and uniform thickness.

Because the brush head has a good ability to carry liquid and to gradually transport the liquid to the tip, the present invention utilizes this feature to create a micro-liquid conduit wrapped in a bundle of flush hair. The head of the catheter is 4-7mm from the neat hair tip, and 2-8 fiber hairs longer than 5-9mm (longer than the whole bundle of 1-2mm) are fixed on both sides of the catheter. The micro liquid conduit is connected to an automatic liquid supply device. This new brush-type liquid-conducting infiltration device can draw micrometer-wide and nano-thick films in an infinite length.

The technical problem to be solved by the present invention is achieved by the following technical solutions:

The brush-type liquid guiding infiltration device of the present invention comprises a micro-liquid conduit 3, wherein a peripheral portion of the head of the micro-liquid conduit 3 is wrapped with a bundle of flush pens 2 at the innermost side of the flushing pen 2 a plurality of protruding pens 1 are disposed at equal intervals on the outer circumference of the micro-liquid conduit; wherein the vertical distance of the tip of the flushing hair 2 to the head of the micro-liquid conduit is 4-7 mm, and the tip of the protruding pen 1 is flushed to the pen The vertical distance of the hairs of the hair 2 is 1-2 mm.

According to the device of the present invention, preferably, 2 to 8 protruding pens 1 are disposed at equal intervals along the outer circumference of the minute liquid conduit, and further preferably, 2 protruding pens 1 are provided.

The device according to the invention, wherein preferably the vertical distance of the tip of the flushing hair 2 to the head of the micro-liquid conduit is 5 mm, the tip of the protruding hair 1 to the tip of the flushing hair 2 The vertical distance is 1mm.

The device according to the present invention, wherein the protruding pen 1 and the protruding pen 2 may each be one or more of polymer hair, metal hair, wolf hair, stone mantle and rabbit hair.

The device according to the invention, wherein the protruding bristles 1 are pointed hairs. The pointed hair refers to a tip end with a tapered fiber needle. The pointed hair of the present invention is an elongated cylinder with respect to the tipless rayon hair, or the tip diameter is greater than 5 μm. For hairless needles, there is no liquid between the hair and the hair, and it cannot be used as a protruding hair, but it can be used as a flat hair.

The object of the present invention includes drawing an ultra-fine film layer. For fine hair, if the elasticity is excellent, the finer the better, the existing brush such as stone mantle, wolf hair, etc. can also be used as appropriate thickness and elasticity. The hair is used, but the thickness (the diameter of the hair body, that is, the diameter of the portion other than the tip) has an upper limit of ≤100 μm, and it is not easy to draw a thin film and a film with too thick hair, preferably in the range of 20-100 μm, further preferably 40-80 μm. .

The device according to the invention, wherein the other end of the micro-liquid conduit 3 is connected to an automatic liquid supply device. The micro-liquid conduit has a diameter of 0.1-1 mm, preferably 0.5 mm. In practical applications, a liquid supply of 0.1-10 μl/min is usually used, and the diameter of the catheter is not required to be too large.

Further, the present invention may further provide a liquid supply sleeve for fixing at the outermost liquid inlet end of the entire bundle of flushing pens, and the liquid supply sleeve may preferably use a thermoplastic tube. In actual use, the pen hair can be fixed to the liquid liquid conduit, inserted into the liquid supply sleeve, and the liquid supply sleeve is heated and contracted to fix the root of the micro liquid conduit and the fiber hair needle.

The beneficial effects of the present invention are as follows:

The present invention innovatively employs a device in which a catheter is sandwiched between the middle of a conventional writing brush and a small amount of fiber bristles longer than 1-2 mm of the entire bristle tip. (1) After the device is connected to the micro-liquid supply device, the problem that the brush requires sputum is solved, and the device can be continuously supplied with liquid. (2) The modified brush head dredging liquid infiltration device can realize the micro-liquid through the infusion tube to continuously and uniformly guide the infiltrating liquid on the whole brush with only two fiber hairs. Because the brush head can carry and soak liquid very well, it can supply liquid according to the consumption and uniformity of the protruding pen liquid longer than it. At the same time, the brush head has a high elastic liquid content, so even if the liquid supply volume of the automatic liquid supply system is inconsistent with the consumption of the two hairs of the tip (as long as the error is not large), because the elastic liquid capacity of the brush head is also It will offset it very well. In the implementation process, according to the requirements of the film layer, the contact angle of the tip tip and the liquid supply amount can be adjusted to prepare an ideal film. In this design, since the brush head can withstand a small amount of liquid supply change, it can actively adjust a small amount of error in the micro-feeding process, and always keep the film layer consistent. (3) A small amount of length-exposed pen hair (such as 2, 4 hairs, 8 hairs) enables the device to draw ultra-fine ultra-thin film layers of any length and width of nanometers on the plane. The method of the invention has simple principle and is easy to implement, and can effectively solve the problem of infiltration of trace liquid in a trace liquid supply system. It is of great significance for the experimental research and production of large-area preparation of high-quality ultra-fine ultra-thin film layers.

DRAWINGS

1 is a schematic structural view of a brush-type liquid guiding infiltration device according to an embodiment of the present invention.

2 is an optical micrograph (eyepiece 10X, objective lens 10X) of a 11.61 μm wide film prepared in Example 1 of the present invention.

3 is an optical micrograph (eyepiece 10X, objective lens 10X) of a 29.45 μm wide film prepared in Example 2 of the present invention.

4 is an optical micrograph (eyepiece 10X, objective lens 5X) of a 101.91 μm wide film prepared in Example 3 of the present invention.

detailed description

The technical solution of the present invention will be further described below in conjunction with the embodiments.

Example 1

Referring to Figure 1, a micro-liquid conduit (3) is wrapped in the middle of a bundle of flush hair (2). The head of the catheter is 5 mm from the entire neat tip and fixed on both sides of the catheter. Rabbit hair (1) with a head of 6 mm (longer than the entire bundle of 1 mm), and a micro-liquid conduit connected to the automatic liquid supply device. A certain concentration of ink is injected into the micro-liquid liquid supply device. When the liquid supply speed is 1 μL/min, and the two hair tips are brought into contact with the substrate at an angle of 80°, an ultrafine shape with a width of 11.61 μm and a thickness of <100 nm is drawn. Ultra-thin film layer, its optical microscope is shown in Figure 2.

Example 2

Wrap a small amount of liquid catheter in the middle of a bundle of flush hair. The head of the catheter is 3mm from the entire neat hair tip, and fix 4 on both sides of the catheter longer than the head of the catheter 4mm (longer than the whole bundle) Brush 1mm) stone mane, micro liquid conduit connected to the automatic liquid supply device. Inject a certain concentration of ink into the micro liquid dispenser, and at a liquid supply speed of 1 μL/min, and project the four hair tips to the substrate at an angle of 80°, draw a superfine width of 29.45 μm and a thickness of <100 nm. The ultra-thin film layer has an optical microscope image as shown in Fig. 3.

Example 3

Wrap a small amount of liquid catheter in the middle of a bundle of flush hair. The head of the catheter is 7mm from the entire neat tip and fixed on the sides of the catheter by 4mm longer than the head of the catheter (greater than the whole bundle). Brush 2mm) polymer hair, micro liquid conduit connected to the automatic liquid supply device. Inject a certain concentration of ink into the micro-liquid liquid supply device. When the liquid supply speed is 1 μL/min, and the 8 hair tips are protruded into contact with the substrate at an angle of 80°, an ultra-fine width of 101.91 μm and a thickness of <100 nm are drawn. The ultra-thin film layer has an optical microscope image as shown in Fig. 4.

The invention may, of course, be embodied in various embodiments and various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the invention. Changes and modifications are intended to be included within the scope of the appended claims.

Claims

A brush-type liquid guiding infiltration device comprises a micro-liquid conduit (3), characterized in that a peripheral portion of the head of the micro-liquid conduit (3) is wrapped with a bundle of flush pens (2) at the flat The inner side of the stylus (2) is provided with a plurality of protruding bristles (1) at equal intervals along the outer circumference of the micro-liquid conduit; wherein the vertical distance of the tip of the flushing bristles (2) to the head of the micro-liquid conduit is 4-7 mm The vertical distance of the tip of the protruding pen (1) to the tip of the flush pen (2) is 1-2 mm.
Device according to claim 1, characterized in that 2-8 protruding bristles (1) are provided.
Device according to claim 2, characterized in that two protruding bristles (1) are provided.
The device according to claim 1, characterized in that the vertical distance of the tip of the flushing hair (2) to the head of the micro-liquid conduit is 5 mm, and the tip of the protruding pen (1) is flushed to the pen The vertical distance of the hair point of the hair (2) is 1 mm.
A device according to any one of claims 1 to 4, wherein said protruding pen (1) and protruding pen (2) are polymer hair, metal hair, wolf hair, stone mane and rabbit hair One or several.
Device according to any of claims 1-4, characterized in that the protruding pleats (1) are pointed hairs.
Device according to any one of claims 1-4, characterized in that the protruding hairs (1) and the flushing hairs (2) have a body diameter of ≤ 100 μm.
Device according to any of claims 1-4, characterized in that the other end of the micro-liquid conduit (3) is connected to an automatic liquid supply device.
A device according to any one of claims 1-4, characterized in that a liquid supply sleeve is arranged outside the bundle of flushing bristles (2).