WO2023236621A1 - Super-hydrophobic bionic nano-coating for display support frame and preparation method therefor - Google Patents

Super-hydrophobic bionic nano-coating for display support frame and preparation method therefor Download PDF

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WO2023236621A1
WO2023236621A1 PCT/CN2023/082670 CN2023082670W WO2023236621A1 WO 2023236621 A1 WO2023236621 A1 WO 2023236621A1 CN 2023082670 W CN2023082670 W CN 2023082670W WO 2023236621 A1 WO2023236621 A1 WO 2023236621A1
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hydrophobic
superhydrophobic
nano
bionic
substrate
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French (fr)
Chinese (zh)
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徐宏俊
唐正勇
李日胜
韩琦
夏勇
程爱祥
陈波
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泰州市创新电子有限公司
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C08J7/123—Treatment by wave energy or particle radiation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/06—Coating with compositions not containing macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2483/04—Polysiloxanes

Definitions

  • Coating is a solid continuous film obtained by one application of paint. It is coated on metal, fabric, plastic and other substrates for the purpose of protection, insulation, decoration, etc. Coatings can come in a variety of forms, and the type and state of the coating usually depends on the substrate to be sprayed. The connection strength between the existing superhydrophobic biomimetic nanocoatings and the substrate does not meet expectations, and the hydrophobic performance declines rapidly after long-term use.
  • the hydrophobic base material is plastic or Teflon.
  • the contact angle on the surface of the superhydrophobic layer is 175 ⁇ 5°, and the rolling angle is 1-8°.
  • a superhydrophobic layer obtained by the above preparation method is provided.
  • etching technology is used to etch a periodic micron lattice on the surface of a hydrophobic substrate, and then combined with viscose and nano-scale hydrophobic coating particles, so that the surface of the lattice is covered and wrapped by the sprayed nano-scale hydrophobic coating particles, making it have dots.
  • the surface of the substrate with the matrix structure is completely adhered to the nano-scale hydrophobic coating particles, so that the super-hydrophobic layer formed between the lattice and the surface forms a micro-nano composite structure, which can maintain the hydrophobic properties of the substrate surface for a long time.
  • Figure 1 is a flow chart of a method for preparing a superhydrophobic layer in an embodiment.
  • FIG. 1 is a flow chart of a method for preparing a superhydrophobic layer in an embodiment.
  • the superhydrophobic layer preparation method includes the following steps:
  • the laser etching instrument model is IBE-A-150.
  • a 6 ⁇ m periodic honeycomb-shaped distribution-like circular lattice structure mask is used, so that the dot structure obtained after etching is cylindrical.
  • Step S102 then apply polydimethylsiloxane glue to the surface of the hydrophobic substrate. After the coating is completed, the drying time is 4.5 minutes and the drying temperature is 33°C;
  • Step S103 spray hydrophobic modified nano-silica with a particle size of 0.25 ⁇ m onto the polydimethylsiloxane glue layer, and under the conditions of a drying time of 5.5 hours and a drying temperature of 50°C, the result is A superhydrophobic layer with a surface contact angle of 178° ⁇ 1 and a rolling angle of 1-3°.
  • Etching technology is used to etch a periodic micron lattice on the surface of the hydrophobic substrate, and then combined with viscose and nano-scale hydrophobic coating particles, so that the lattice surface is covered and wrapped by the sprayed nano-scale hydrophobic coating particles, making the substrate with a lattice structure
  • the surface of the material is completely adhered to the nano-scale hydrophobic paint particles, so that the super-hydrophobic layer formed between the lattice and the surface forms a micro-nano composite structure, which can keep the surface of the substrate hydrophobic for a long time.
  • Embodiment 2-4
  • Example 1 is a superhydrophobic coating without micro-nano structure
  • Comparative Example 2 only has a micro-nano structure with a period of 6 ⁇ m
  • Comparative Example 3 is a micro-nano structure with a period of only 9 ⁇ m, see Table 1 for details:
  • Embodiment 5-6 is a diagrammatic representation of Embodiment 5-6.
  • the difference is the difference in dot structure. See Table 2 for details:
  • the detection method is: Use a razor blade to make 10 cuts horizontally and vertically at intervals of 1mm, then stick it with tape, press it tightly, and then tear it off immediately with a tensile tester to observe the shedding of the prepared superhydrophobic layer. condition, and meter readings.
  • the difference is that the particle size of the nano-scale hydrophobic coating particles is different, as shown in Table 4 for details:

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to the technical field of display support frames. Disclosed is a preparation method for a super-hydrophobic bionic nano-coating. The method comprises the following steps: firstly, etching a micro-nano structure on the surface of a hydrophobic substrate by means of an etching process, and then cleaning the etched surface of the hydrophobic substrate; next, coating the surface of the hydrophobic substrate with an adhesive layer; and finally, spraying nano-scale hydrophobic coating particles onto the adhesive layer, and drying same to obtain a super-hydrophobic layer. In the present invention, periodic micron dot matrices are etched on the surface of a hydrophobic substrate by using an etching technique, and in combination with an adhesive and nano-scale hydrophobic coating particles, the surfaces of the dot matrices are covered and wrapped by the sprayed nano-scale hydrophobic coating particles, such that the substrate surface, which has a dot matrix structure, is completely adhered to the nano-scale hydrophobic coating particles; therefore, the dot matrices and a super-hydrophobic layer formed on the surface form a micro-nano composite structure, which enables the surface of the substrate to maintain hydrophobic characteristics for a long time.

Description

一种显示器支撑架用超疏水仿生纳米涂层及其制备方法A kind of superhydrophobic bionic nano coating for display support frame and preparation method thereof 技术领域Technical field
本发明涉及显示器支撑架技术领域，具体涉及一种显示器支撑架用超疏水仿生纳米涂层及其制备方法。The invention relates to the technical field of display supports, and in particular to a superhydrophobic bionic nano coating for display supports and a preparation method thereof.
背景技术Background technique
涂层是涂料一次施涂所得到的固态连续膜，是为了防护、绝缘、装饰等目的，涂布于金属、织物、塑料等基体上的。涂料可以为各种形态，且通常根据需要喷涂的基质决定涂料的种类和状态。现有的超疏水仿生纳米涂层的与基体的连接强度达不到预期，长期使用后疏水性能快速下降。Coating is a solid continuous film obtained by one application of paint. It is coated on metal, fabric, plastic and other substrates for the purpose of protection, insulation, decoration, etc. Coatings can come in a variety of forms, and the type and state of the coating usually depends on the substrate to be sprayed. The connection strength between the existing superhydrophobic biomimetic nanocoatings and the substrate does not meet expectations, and the hydrophobic performance declines rapidly after long-term use.
发明内容Contents of the invention
本发明的目的在于提供一种显示器支撑架用超疏水仿生纳米涂层及其制备方法，以解决现有超疏水仿生纳米涂层的与基体的连接强度达不到预期，长期使用后疏水性能快速下降的技术问题。The purpose of the present invention is to provide a superhydrophobic bionic nanocoating for a display support frame and a preparation method thereof, so as to solve the problem that the connection strength between the existing superhydrophobic bionic nanocoating and the substrate does not meet expectations, and the hydrophobicity quickly increases after long-term use. Falling technical issues.
本发明人发现，现有的疏水性基材，单单依靠在表面刻蚀形成微纳结构来达到超疏水目的，难以达到预期效果，且难度较大。同时现有的在基材表面喷涂粘胶再结合疏水涂层的方式，虽然能够解决疏水涂层与基材表面的强度问题，但是不够理想，仅仅依靠疏水涂层实现的疏水作用，依旧比较单一，难以持久。The inventor found that existing hydrophobic substrates only rely on etching the surface to form micro-nano structures to achieve the purpose of superhydrophobicity, which is difficult to achieve the desired effect and is very difficult. At the same time, the existing method of spraying adhesive on the surface of the substrate and combining it with a hydrophobic coating can solve the problem of the strength of the hydrophobic coating and the surface of the substrate, but it is not ideal. The hydrophobic effect achieved by relying solely on the hydrophobic coating is still relatively simple. , difficult to last.
为实现上述目的，本发明提供如下技术方案：In order to achieve the above objects, the present invention provides the following technical solutions:
根据本发明的一个方面，提供了一种超疏水仿生纳米涂层的制备方法，包括以下步骤：According to one aspect of the present invention, a method for preparing a superhydrophobic biomimetic nanocoating is provided, including the following steps:
首先，通过蚀刻工艺在疏水基材表面蚀刻微纳结构，再将蚀刻后的疏水基材表面清洗干净；First, micro-nano structures are etched on the surface of the hydrophobic substrate through an etching process, and then the etched hydrophobic substrate surface is cleaned;
然后，再向疏水基材表面涂布粘胶层；Then, apply an adhesive layer to the surface of the hydrophobic substrate;
最后，将纳米级疏水涂料颗粒喷涂至粘胶层上，烘干即得超疏水层。 Finally, the nano-scale hydrophobic paint particles are sprayed onto the adhesive layer and dried to obtain a super-hydrophobic layer.
其中，所述疏水基材为塑料或特氟龙。Wherein, the hydrophobic base material is plastic or Teflon.
其中，所述微纳结构为具有周期性的微米点阵，且在最后工序中，所述微米点阵被纳米级疏水涂料颗粒包裹；Wherein, the micro-nano structure is a periodic micron lattice, and in the final process, the micron lattice is wrapped by nanoscale hydrophobic coating particles;
其中，所述微纳结构优选6-9μm周期的微米点阵。Among them, the micro-nano structure is preferably a micron lattice with a period of 6-9 μm.
其中，所述微纳结构中的点结构形状为圆柱形、长方形或棱台形。Wherein, the shape of the dot structure in the micro-nano structure is cylindrical, rectangular or pyramidal.
其中，所述纳米级疏水涂料颗粒包括疏水改性纳米二氧化硅、纳米石蜡、疏水改性十八烷基三氯硅烷和PDMS-炭黑中的一种；Wherein, the nanoscale hydrophobic coating particles include one of hydrophobically modified nanosilica, nanoparaffin, hydrophobically modified octadecyltrichlorosilane and PDMS-carbon black;
其中，所述纳米级疏水涂料颗粒的粒径为0.01-0.5μm。Wherein, the particle size of the nanoscale hydrophobic coating particles is 0.01-0.5 μm.
其中，在涂布粘胶层后，烘干时间为4-5min，烘干温度为30-35℃；Among them, after coating the adhesive layer, the drying time is 4-5 minutes, and the drying temperature is 30-35°C;
在喷涂纳米级疏水涂料颗粒后，烘干时间为5-6h，烘干温度为45-55℃。After spraying nano-scale hydrophobic coating particles, the drying time is 5-6h and the drying temperature is 45-55°C.
其中，所述粘胶层包括环氧树脂类胶、聚二甲基硅氧烷胶、聚氨酯类胶或硅酮类胶中的至少一种。Wherein, the adhesive layer includes at least one of epoxy resin glue, polydimethylsiloxane glue, polyurethane glue or silicone glue.
其中，所述超疏水层表面的接触角为175±5°，滚动角为1-8°。Wherein, the contact angle on the surface of the superhydrophobic layer is 175±5°, and the rolling angle is 1-8°.
根据本发明的一个方面，提供了利用上述制备方法得到的超疏水层。According to one aspect of the present invention, a superhydrophobic layer obtained by the above preparation method is provided.
根据本发明的一个方面，提供了超疏水层在显示器支架上的应用。According to one aspect of the present invention, application of a superhydrophobic layer on a display bracket is provided.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
本发明中，利用蚀刻技术在疏水基材表面蚀刻出周期性的微米点阵，再结合粘胶和纳米级疏水涂料颗粒，使得点阵表面被喷涂的纳米级疏水涂料颗粒覆盖包裹，使具有点阵结构的基材表面与纳米级疏水涂料颗完全粘黏，从而使点阵与表面形成的超疏水层构成微纳米复合结构，能使基材表面长久保持疏水特性。In the present invention, etching technology is used to etch a periodic micron lattice on the surface of a hydrophobic substrate, and then combined with viscose and nano-scale hydrophobic coating particles, so that the surface of the lattice is covered and wrapped by the sprayed nano-scale hydrophobic coating particles, making it have dots. The surface of the substrate with the matrix structure is completely adhered to the nano-scale hydrophobic coating particles, so that the super-hydrophobic layer formed between the lattice and the surface forms a micro-nano composite structure, which can maintain the hydrophobic properties of the substrate surface for a long time.
附图说明Description of the drawings
此处的附图被并入说明书中构成本说明书的一部分，并示出了符合本发明的实施例，与说明书一起用于解释本发明的原理。The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.
图1为一实施例中超疏水层制备方法的流程框图。 Figure 1 is a flow chart of a method for preparing a superhydrophobic layer in an embodiment.
具体实施方式Detailed ways
本申请文件中所披露的范围的端点和任何值都不限于该精确的范围或值，这些范围或值应当理解为包含接近这些范围或值的值。对于数值范围来说，各个范围的端点值之间、各个范围值的端点和单独的点值之间，以及单独的点值之间可以彼此组合而得到一个或多个新的数值范围，这些数值范围应当被视为在本申请文件中具体公开。The endpoints of ranges and any values disclosed in this application document are not limited to the precise range or value, but these ranges or values are to be understood to include values approximating those ranges or values. For numerical ranges, the endpoint values of each range, the endpoints of each range value and individual point values, and the individual point values can be combined with each other to obtain one or more new numerical ranges. These values The scope shall be deemed to be specifically disclosed in this application document.
请参阅图1，其中，图1为一实施例中超疏水层制备方法的流程框图。Please refer to FIG. 1 , which is a flow chart of a method for preparing a superhydrophobic layer in an embodiment.
实施例一，超疏水层制备方法包括以下步骤：Embodiment 1, the superhydrophobic layer preparation method includes the following steps:
步骤S101，通过激光蚀刻仪在塑料表面蚀刻6μm周期的微米点阵，再将蚀刻后的塑料表面清洗干净；Step S101: Use a laser etching instrument to etch a micron lattice with a period of 6 μm on the plastic surface, and then clean the etched plastic surface;
其中，激光蚀刻仪型号为IBE-A-150，蚀刻时采用6μm周期蜂窝型分布的似圆形点阵结构掩膜板，使得蚀刻后得到的点结构为圆柱形。Among them, the laser etching instrument model is IBE-A-150. During etching, a 6 μm periodic honeycomb-shaped distribution-like circular lattice structure mask is used, so that the dot structure obtained after etching is cylindrical.
步骤S102，再向疏水基材表面涂布聚二甲基硅氧烷胶，完成涂布后，烘干时间为4.5min，烘干温度为33℃；Step S102, then apply polydimethylsiloxane glue to the surface of the hydrophobic substrate. After the coating is completed, the drying time is 4.5 minutes and the drying temperature is 33°C;
步骤S103，将粒径为0.25μm的疏水改性纳米二氧化硅喷涂至聚二甲基硅氧烷胶层上，在烘干时间为5.5h，烘干温度为50℃的条件下，即得表面接触角为178°±1，滚动角为1-3°的超疏水层。Step S103, spray hydrophobic modified nano-silica with a particle size of 0.25 μm onto the polydimethylsiloxane glue layer, and under the conditions of a drying time of 5.5 hours and a drying temperature of 50°C, the result is A superhydrophobic layer with a surface contact angle of 178°±1 and a rolling angle of 1-3°.
利用蚀刻技术在疏水基材表面蚀刻出周期性的微米点阵，再结合粘胶和纳米级疏水涂料颗粒，使得点阵表面被喷涂的纳米级疏水涂料颗粒覆盖包裹，使具有点阵结构的基材表面与纳米级疏水涂料颗完全粘黏，从而使点阵与表面形成的超疏水层构成微纳米复合结构，能使基材表面长久保持疏水特性Etching technology is used to etch a periodic micron lattice on the surface of the hydrophobic substrate, and then combined with viscose and nano-scale hydrophobic coating particles, so that the lattice surface is covered and wrapped by the sprayed nano-scale hydrophobic coating particles, making the substrate with a lattice structure The surface of the material is completely adhered to the nano-scale hydrophobic paint particles, so that the super-hydrophobic layer formed between the lattice and the surface forms a micro-nano composite structure, which can keep the surface of the substrate hydrophobic for a long time.
为便于进一步理解本发明的技术方案，将通过以下实施例进一步说明。In order to further understand the technical solutions of the present invention, the following examples will be further described.
实施例二-四：Embodiment 2-4:
按照实施例一的制备方法，不同的是微米点阵的周期不同，其中，对比 例1为不具有微纳结构的超疏水涂层，对比例2仅具有6μm周期的微纳结构，对比例3为仅具有9μm周期的微纳结构，具体见表1：
According to the preparation method of Example 1, the difference is that the period of the micron lattice is different. In contrast, Example 1 is a superhydrophobic coating without micro-nano structure, Comparative Example 2 only has a micro-nano structure with a period of 6 μm, Comparative Example 3 is a micro-nano structure with a period of only 9 μm, see Table 1 for details:
通过表1可知，其它条件不变，6μm周期的微米点阵在疏水性能的表现最好，此外，在仅仅具有微纳结构和仅仅具有超疏水涂层的情况下，疏水性能的表现均不如微纳结构和超疏水涂层相结合的疏水性能。It can be seen from Table 1 that, other conditions remaining unchanged, the micron lattice with a period of 6 μm performs best in hydrophobic performance. In addition, in the case of only having a micro-nano structure and only a superhydrophobic coating, the hydrophobic performance is not as good as that of the micron lattice. Hydrophobic properties combined with nanostructures and superhydrophobic coatings.
实施例五-六：Embodiment 5-6:
按照实施例一的制备方法，不同的是点结构的不同，具体见表2：
According to the preparation method of Example 1, the difference is the difference in dot structure. See Table 2 for details:
通过表1可知，其它条件不变，在点结构为圆柱形时，疏水性能的表现最好。It can be seen from Table 1 that, other conditions remaining unchanged, the hydrophobic performance is the best when the point structure is cylindrical.
实施例七-九：Embodiments 7-9:
按照实施例一的制备方法，不同的是粘胶层的材质不同，具体见表3：

According to the preparation method of Example 1, the difference is that the material of the adhesive layer is different. See Table 3 for details:

检测方法为：在干透的超疏水层上用刀片每隔1mm，横、竖各划10刀，然后用胶带粘贴、压紧后手持拉力计马上撕下，观察所制备的超疏水层的脱落情况，并计量读数。The detection method is: Use a razor blade to make 10 cuts horizontally and vertically at intervals of 1mm, then stick it with tape, press it tightly, and then tear it off immediately with a tensile tester to observe the shedding of the prepared superhydrophobic layer. condition, and meter readings.
在其它条件不变的情况下，采用上述材料的粘胶层均为发生脱落，且采用聚二甲基硅氧烷胶时，测得的拉力最大。When other conditions remain unchanged, the adhesive layers using the above materials all fall off, and when polydimethylsiloxane glue is used, the measured tensile force is the largest.
实施例十-十一：Embodiments 10-11:
按照实施例一的制备方法，不同的是纳米级疏水涂料颗粒的粒径不同，具体见表4：
According to the preparation method of Example 1, the difference is that the particle size of the nano-scale hydrophobic coating particles is different, as shown in Table 4 for details:
由表4可知，在其它条件不变的情况下，采用粒径为0.25微米的纳米级疏水涂料颗粒。其疏水性能最好。As can be seen from Table 4, when other conditions remain unchanged, nanoscale hydrophobic coating particles with a particle size of 0.25 microns are used. It has the best hydrophobic properties.
根据本发明的一个方面，提供了利用上述制备方法得到的超疏水层。According to one aspect of the present invention, a superhydrophobic layer obtained by the above preparation method is provided.
根据本发明的一个方面，提供了超疏水层在显示器支架上的应用。According to one aspect of the present invention, application of a superhydrophobic layer on a display bracket is provided.
需要说明的是，本文中所述纳米级疏水涂料颗粒，不仅限于所列举的疏水改性纳米二氧化硅、纳米石蜡、疏水改性十八烷基三氯硅烷和PDMS-炭黑，也可采用现有已知的材料，如聚乙烯蜡、硬脂酸、软脂酸、硬脂酸甘油酯、 二十六烷酸、二十四烷酸、三十烷酸、二十八烷、豆蔻酸、山嵛酸及三十二烷酸，虽然本文中并未明确记载可作为所述纳米级疏水涂料颗粒的所有材料，但本领域技术人员通过现有的材料能够实现上述制备方法的应当理解为都被本文件所涵盖。It should be noted that the nanoscale hydrophobic coating particles described in this article are not limited to the listed hydrophobically modified nanosilica, nanoparaffin, hydrophobically modified octadecyltrichlorosilane and PDMS-carbon black. They can also be used. Currently known materials, such as polyethylene wax, stearic acid, palmitic acid, glyceryl stearate, Hexadecanoic acid, tetracosanoic acid, triacontanic acid, octadecanoic acid, myristic acid, behenic acid and triacontanic acid, although it is not explicitly recorded in this article that they can be used as the nanoscale hydrophobic coating. All materials of particles, but those skilled in the art can realize the above preparation method with existing materials should be understood to be covered by this document.
以上仅是本发明的具体实施方式，使本领域技术人员能够理解或实现本发明。对这些实施例的多种修改对本领域的技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明总的发明构思的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所申请的原理和新颖特点相一致的最宽的范围。 The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the general inventive concept. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims (10)

  1. 一种超疏水仿生纳米涂层的制备方法，其特征在于，包括以下步骤：A method for preparing a superhydrophobic bionic nanocoating, which is characterized by including the following steps:
    首先，通过蚀刻工艺在疏水基材表面蚀刻微纳结构，再将蚀刻后的疏水基材表面清洗干净；First, micro-nano structures are etched on the surface of the hydrophobic substrate through an etching process, and then the etched hydrophobic substrate surface is cleaned;
    然后，再向疏水基材表面涂布粘胶层；Then, apply an adhesive layer to the surface of the hydrophobic substrate;
    最后，将纳米级疏水涂料颗粒喷涂至粘胶层上，烘干即得超疏水层。Finally, the nano-scale hydrophobic paint particles are sprayed onto the adhesive layer and dried to obtain a super-hydrophobic layer.
  2. 根据权利要求1所述的一种超疏水仿生纳米涂层的制备方法，其特征在于：A method for preparing a superhydrophobic bionic nanocoating according to claim 1, characterized in that:
    所述疏水基材为塑料或特氟龙。The hydrophobic base material is plastic or Teflon.
  3. 根据权利要求1所述的一种超疏水仿生纳米涂层的制备方法，其特征在于：A method for preparing a superhydrophobic bionic nanocoating according to claim 1, characterized in that:
    所述微纳结构为具有周期性的微米点阵，且在最后工序中，所述微米点阵被纳米级疏水涂料颗粒包裹；The micro-nano structure is a periodic micron lattice, and in the final process, the micron lattice is wrapped by nanoscale hydrophobic coating particles;
    其中，所述微纳结构优选6-9μm周期的微米点阵。Among them, the micro-nano structure is preferably a micron lattice with a period of 6-9 μm.
  4. 根据权利要求3所述的一种超疏水仿生纳米涂层的制备方法，其特征在于：A method for preparing a superhydrophobic bionic nanocoating according to claim 3, characterized in that:
    所述微纳结构中的点结构形状为圆柱形、长方形或棱台形。The shape of the point structure in the micro-nano structure is cylindrical, rectangular or pyramidal.
  5. 根据权利要求1所述的一种超疏水仿生纳米涂层的制备方法，其特征在于：A method for preparing a superhydrophobic bionic nanocoating according to claim 1, characterized in that:
    所述纳米级疏水涂料颗粒包括疏水改性纳米二氧化硅、纳米石蜡、疏水改性十八烷基三氯硅烷和PDMS-炭黑中的一种；The nanoscale hydrophobic coating particles include one of hydrophobically modified nanosilica, nanoparaffin, hydrophobically modified octadecyltrichlorosilane and PDMS-carbon black;
    其中，所述纳米级疏水涂料颗粒的粒径为0.01-0.5μm。Wherein, the particle size of the nanoscale hydrophobic coating particles is 0.01-0.5 μm.
  6. 根据权利要求1所述的一种超疏水仿生纳米涂层的制备方法，其特征在于：A method for preparing a superhydrophobic bionic nanocoating according to claim 1, characterized in that:
    在涂布粘胶层后，烘干时间为4-5min，烘干温度为30-35℃；After coating the adhesive layer, the drying time is 4-5 minutes, and the drying temperature is 30-35°C;
    在喷涂纳米级疏水涂料颗粒后，烘干时间为5-6h，烘干温度为45-55℃。 After spraying nano-scale hydrophobic coating particles, the drying time is 5-6h and the drying temperature is 45-55°C.
  7. 根据权利要求1或6所述的一种超疏水仿生纳米涂层的制备方法，其特征在于：The preparation method of a superhydrophobic biomimetic nanocoating according to claim 1 or 6, characterized in that:
    所述粘胶层包括环氧树脂类胶、聚二甲基硅氧烷胶、聚氨酯类胶和硅酮类胶中的至少一种。The adhesive layer includes at least one of epoxy resin glue, polydimethylsiloxane glue, polyurethane glue and silicone glue.
  8. 根据权利要求1所述的一种超疏水仿生纳米涂层的制备方法，其特征在于：A method for preparing a superhydrophobic bionic nanocoating according to claim 1, characterized in that:
    所述超疏水层表面的接触角为175±5°，滚动角为1-8°。The contact angle on the surface of the superhydrophobic layer is 175±5°, and the rolling angle is 1-8°.
  9. 根据权利要求1-8任意一项制备方法得到的超疏水层。The superhydrophobic layer obtained according to any one of the preparation methods of claims 1-8.
  10. 权利要求9所述的超疏水层在显示器支架上的应用。 Application of the superhydrophobic layer according to claim 9 on a display bracket.
PCT/CN2023/082670 2022-06-07 2023-03-21 Super-hydrophobic bionic nano-coating for display support frame and preparation method therefor WO2023236621A1 (en)

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