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Functional interface capable of self-driven directional transport of liquid, method and application thereof

A self-driven, interface technology, used in chemical instruments and methods, laboratory utensils, laboratory containers, etc., can solve the potential functions and applications of the interface that limit the directional collection of liquids, the single material of the liquid collection system, and the difficult directional transport. Collecting liquid and other problems, to achieve the effect of low preparation cost, safe droplet transmission process, and obvious effect

Active Publication Date: 2019-06-25
九砚热管理科技(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing liquid collection systems are based on a single material, such as sponges, filter papers, etc.
After the droplet is collected, it is difficult to collect liquid through efficient pathways for directional transport
The problem of liquid directional transport can be solved by using external driving force, but the input of external force virtually causes energy re-consumption, and limits the potential functions and applications of liquid directional collection interface

Method used

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  • Functional interface capable of self-driven directional transport of liquid, method and application thereof
  • Functional interface capable of self-driven directional transport of liquid, method and application thereof
  • Functional interface capable of self-driven directional transport of liquid, method and application thereof

Examples

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Effect test

Embodiment 1

[0039] Use hydrophobic silica nanoparticles and polymethylsiloxane prepolymer to spin-coat on a commercial alumina ceramic plate (2mm thick), and heat it in an oven at 80 degrees for 1 hour to obtain superhydrophobic alumina ceramics piece. The ceramic sheet is patterned and polished using a micro-processing platform (numerical control engraving machine) to prepare super-hydrophobic regions 2 and super-hydrophilic regions 3 with strips of 200-1000 microns arranged alternately. Since the alumina ceramic sheet itself has strong hydrophilicity, no further treatment is required to obtain a superhydrophilic material. Use a humidifier to spray atomized droplets on the surface of the functional interface of the present invention, and it can be observed that the small droplets collected on the superhydrophobic surface will be quickly and directional transported by the surrounding superhydrophilic channels, realizing efficient collection and rapid transportation of mist transport.

Embodiment 2

[0041] The commercial red copper plate (1mm thick) was first surface polished and cleaned by ethanol ultrasonic cleaning. Soak the copper plate with 1M hydrochloric acid, take it out and wash it, soak the copper grid with 1M sodium hydroxide and 0.13M ammonium persulfate for 5-10 minutes, wash and dry. Further, after immersing in 1-5 mmol / L ethanol solution of dodecylmercaptan for 2-12 hours, rinse with ethanol to obtain a super-hydrophobic copper sheet after modification. A laser engraving machine is used to engrave and sinter strip-shaped or triangular superhydrophilic regions 3 with a thickness of 50 to 500 microns on the superhydrophobic copper sheet to obtain an interface with superhydrophobic regions 2 and superhydrophilic regions 3 . After the laser polishing of the hydrophobized copper substrate, the surface organic molecules are degraded, so that the intrinsic hydrophilicity of copper oxide can be reflected. Utilize the micro-sampler to apply 2-10 microliters of smal...

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Abstract

The invention discloses a functional interface with a liquid self-driven directed transportation ability. The functional interface comprises an interface body, the surface of the interface body is provided with a plurality of super-hydrophobic areas and a plurality of super-hydrophilic areas which are arranged along a liquid transportation direction, and the super-hydrophobic areas and the super-hydrophilic areas are alternately arranged; and one end of every super-hydrophilic area is a closed structure, and the other ends of all the super-hydrophilic areas are interconnected. A manufacturing method of the functional interface comprises the following steps: producing the interface body; carrying out super-hydrophobic treatment on the surface of the interface body; and directly coating the super-hydrophobic treated surface of the interface body through a micro-processing technology or with a hydrophilic material to carry out patterning treatment in order to obtain the alternately arranged super-hydrophobic areas and super-hydrophilic areas, and interconnecting the super-hydrophilic areas. The construction method is simple and reliable, and is applied to the construction of , a liquid drop collection and transportation novel material interface system and the construction of a liquid collection and transportation system adopting micro liquid drop or liquid flow surface energy as a driving factor.

Description

technical field [0001] The invention relates to the technical field of functional materials and fluid manipulation, in particular to a functional interface with self-driven directional transport capability of liquid, its manufacturing method and application. Background technique [0002] With the development of interface science, designing and synthesizing a multifunctional integrated fluid manipulation interface is one of the important research contents in the field of materials and special wetting materials. The collection, transportation, and driving of aqueous liquids such as water droplets, water flow, and mist flow are directly related to the development and application of functional interfaces, and have huge scientific research and application prospects. The surface energy of tiny droplets themselves has the ability to realize a kind of self-driven liquid collection process. In this process, surface energy is the only source of energy for liquid transport, so it can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/00
CPCB01L3/502707B01L2200/0636
Inventor 曹墨源白浩宇
Owner 九砚热管理科技(天津)有限公司
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