CN102140659A - Method for preparing superhydrophobic film - Google Patents

Method for preparing superhydrophobic film Download PDF

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Publication number
CN102140659A
CN102140659A CN 201110045143 CN201110045143A CN102140659A CN 102140659 A CN102140659 A CN 102140659A CN 201110045143 CN201110045143 CN 201110045143 CN 201110045143 A CN201110045143 A CN 201110045143A CN 102140659 A CN102140659 A CN 102140659A
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negative electrode
chloride
electrolysis
thin films
chlorate
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CN 201110045143
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陈志�
郝丽梅
耿兴国
李峰
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Northwestern Polytechnical University
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Northwestern Polytechnical University
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Abstract

The invention relates to a method for preparing a superhydrophobic film, which is technically characterized by comprising the following steps of: dispersing chlorate and myristic acid powder in absolute ethanol to form uniform electrolyte, using two sheet metals in certain size as electrodes, and electrolyzing under certain direct current voltage for certain period of time, so that the metal particle and myristic acid composite superhydrophobic film is formed on a cathode. The superhydrophobic film is obtained on the metal surface of the cathode by a simple and quick method for the first time; and the superhydrophobic film has good Superhydrophobic performance and wide application prospect.

Description

A kind of method for preparing based superhydrophobic thin films
Technical field
The present invention relates to a kind of method for preparing based superhydrophobic thin films, prepare the method for based superhydrophobic thin films, particularly a kind of laminated film that metallic particles and tetradecanoate are arranged that on the cathodic metal plate, forms by TETRADECONIC ACID and chlorate nonaqueous electrolyte.
Background technology
In the metallic substance that uses in industrial production and daily life, surface wettability is a very important index that characterizes them.It is generally acknowledged to have water is super thin material greater than the material of 150 ° of contact angles.Be subjected to the especially inspiration of lotus leaf surface structure of bionical thought, the researchist is in the preparation that makes up uneven surface on the low surface energy material and the material of modification low surface energy has all been realized super thin film on coarse surface tissue, relevant preparation method is also a lot, as anonizing, laser/plasma etching method, chemical Vapor deposition process, sol-gel method, infusion method or the like.There are some shortcomings in these methods, and for example: expensive material, special equipment, need special substrate and problem such as can not repair, these have all seriously hindered their large-scale application in engineering.Recently, at engineering materials-copper, the method that makes up based superhydrophobic thin films on it has also occurred a lot, but preparation efficiency is low, and preparation time did not wait from several hours to several days, and the super thin film of preparation is difficult to repair.In addition, stainless steel, metallic substance such as aluminium also are widely used in the engineering field.Therefore, seek a kind of efficient, simple, cheap, handled easily and recoverable, and be easy to big area makes up super thin film on engineering materials technology of preparing and become one of the hot issue in engineering metal material field.
Summary of the invention
The technical problem that solves
For fear of the deficiencies in the prior art part, the present invention proposes a kind of method for preparing based superhydrophobic thin films, adopted the nonaqueous electrolyte method on metals such as stainless steel, aluminium flake and copper sheet, single step to prepare super thin film at cathode surface fast, this super thin film for preparing on metal base has micro, and it has great contact angle and very little roll angle to glassware for drinking water
Technical scheme
A kind of method for preparing based superhydrophobic thin films is characterized in that step is as follows:
Step 1: place dehydrated alcohol to make it to dissolve fully chlorate, form the solution of 0.01mol/L;
Step 2: the TETRADECONIC ACID powder is dispersed in the above-mentioned solution under the condition of magnetic agitation, makes it to mix, form the TETRADECONIC ACID composite electrolytic solution that contains 0.1mol/l;
Step 3: two tinsels are put into electrolytic solution as anode and negative electrode, and the volts DS that loads 5～30V between anode and negative electrode carries out electrolysis, and electrolysis time is 1min～60min;
Step 4: after electrolysis is finished negative electrode is taken out in drying at room temperature 1min, on the cathodic metal surface, formed the laminated film of fe metallic particles and tetradecanoate.
Described chlorate is iron(ic) chloride, Manganous chloride tetrahydrate, cupric chloride, Manganous chloride tetrahydrate, cobalt chloride, Lanthanum trichloride or nickelous chloride.
Described tinsel is stainless steel, aluminium flake or copper sheet.
Beneficial effect
The method for preparing based superhydrophobic thin films that the present invention proposes, based on the mixed electrolytic solution of TETRADECONIC ACID/chlorate/dehydrated alcohol can be on the cathodic metal sheet single step method of the super thin film of preparation fast.Its preparation method is after chlorate is dissolved in dehydrated alcohol fully, under the condition of magnetic agitation, continue to add the TETRADECONIC ACID powder and make it to form the electrolytic solution that mixes, with two arbitrarily the tinsels of size respectively as anode and negative electrode, the electrolysis regular hour just is formed with the laminated film of metallic particles and tetradecanoate on negative electrode under certain voltage, taking-up at last is at room temperature dry, has so just prepared to have super-hydrophobic thin-film material on negative electrode.This is a kind of simple method of single step fast that can prepare super thin thin-film material that proposes first.
The electrolytic solution that relates in the inventive method has adopted TETRADECONIC ACID (CH 3(CH 2) 12COOH) low-surface-energy material, chlorate and dehydrated alcohol can form the laminated film of metallic particles and tetradecanoate on the cathodic metal surface after electrolysis is finished.Simple, the easy to operate and super thin stable performance of preparation method of the present invention and do not need special device the more important thing is that this process only needs several minutes to finish, and is expected to large-area application on various metallic substance.
Description of drawings
Fig. 1: for adding 2gNiCl 26H 2The 0.1M/L TETRADECONIC ACID of O is at the stainless steel SEM of voltage 30V electrolysis time 15min figure;
Fig. 2: for adding 2g FeCl 36H 2The 0.1M/L TETRADECONIC ACID of O is at the stainless steel SEM of voltage 30V electrolysis time 10min figure;
Fig. 3: for adding 2g NiCl 26H 2The 0.1M/L TETRADECONIC ACID of O is at the aluminium flake SEM of voltage 30V electrolysis time 15min figure;
Fig. 4: for adding 2g MnCl 24H 2The 0.1M/L TETRADECONIC ACID of O is at the copper sheet SEM of voltage 30V electrolysis time 15min figure;
Embodiment
Now in conjunction with the embodiments, accompanying drawing is further described the present invention:
Embodiment 1:
Step 1: with 2g chlorate NiCl 26H 2O places the 150ml dehydrated alcohol to make it to dissolve fully, forms the solution of 0.01mol/L;
Step 2: 3.43g TETRADECONIC ACID powder is dispersed in the above-mentioned solution under the condition of magnetic agitation, makes it to mix, form the TETRADECONIC ACID composite electrolytic solution that contains 0.1mol/l;
Step 3: will put into electrolytic solution with the liquid honing of 400 and 800 granularities and two the stainless steel substrates that dries up as anode and negative electrode in advance, the volts DS that loads 30V between anode and negative electrode carries out electrolysis, and electrolysis time is 15min;
Step 4: after electrolysis is finished negative electrode is taken out in drying at room temperature 1min, on the cathodic metal surface, formed the based superhydrophobic thin films of fe metallic particles and tetradecanoate.As shown in Figure 1, concrete contact angle sees Table 1.
Embodiment 2:
Step 1: with 2g iron(ic) chloride FeCl 36H 2O places the 150ml dehydrated alcohol to make it to dissolve fully, forms the solution of 0.01mol/L;
Step 2: 3.43g TETRADECONIC ACID powder is dispersed in the above-mentioned solution under the condition of magnetic agitation, makes it to mix, form the TETRADECONIC ACID composite electrolytic solution that contains 0.1mol/l;
Step 3: will put into electrolytic solution with the liquid honing of 400 and 800 granularities and two stainless steels that dry up as anode and negative electrode in advance, the volts DS that loads 30V between anode and negative electrode carries out electrolysis, and electrolysis time is 10min;
Step 4: after electrolysis is finished negative electrode is taken out in drying at room temperature 1min, on the cathodic metal surface, formed the based superhydrophobic thin films of fe metallic particles and tetradecanoate.As shown in Figure 2, concrete contact angle sees Table 1.
Embodiment 3:
Step 1: with 2g chlorate NiCl 26H 2O places the 150ml dehydrated alcohol to make it to dissolve fully, forms the solution of 0.01mol/L;
Step 2: 3.43g TETRADECONIC ACID powder is dispersed in the above-mentioned solution under the condition of magnetic agitation, makes it to mix, form the TETRADECONIC ACID composite electrolytic solution that contains 0.1mol/l;
Step 3: will put into electrolytic solution with the liquid honing of 400 and 800 granularities and two aluminium flakes that dry up as anode and negative electrode in advance, the volts DS that loads 30V between anode and negative electrode carries out electrolysis, and electrolysis time is 15min;
Step 4: after electrolysis is finished negative electrode is taken out in drying at room temperature 1min, on the cathodic metal surface, formed the based superhydrophobic thin films of fe metallic particles and tetradecanoate.As shown in Figure 3, concrete contact angle sees Table 1.
Embodiment 4:
Step 1: with 2g chlorate MnCl 24H 2O places the 150ml dehydrated alcohol to make it to dissolve fully, forms the solution of 0.01mol/L;
Step 2: 3.43g TETRADECONIC ACID powder is dispersed in the above-mentioned solution under the condition of magnetic agitation, makes it to mix, form the TETRADECONIC ACID composite electrolytic solution that contains 0.1mol/l;
Step 3: will put into electrolytic solution with the liquid honing of 400 and 800 granularities and two copper sheets that dry up as anode and negative electrode in advance, the volts DS that loads 30V between anode and negative electrode carries out electrolysis, and electrolysis time is 15min;
Step 4: after electrolysis is finished negative electrode is taken out in drying at room temperature 1min, on the cathodic metal surface, formed the based superhydrophobic thin films of fe metallic particles and tetradecanoate.As shown in Figure 4, concrete contact angle sees Table 1.
Table 1: the contact angle of embodiment sample
Sample Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
The negative electrode contact angle (°) ?163 ?163 ?162 ?161

Claims (3)

1. method for preparing based superhydrophobic thin films is characterized in that step is as follows:
Step 1: place dehydrated alcohol to make it to dissolve fully chlorate, form the solution of 0.01mol/L;
Step 2: the TETRADECONIC ACID powder is dispersed in the above-mentioned solution under the condition of magnetic agitation, makes it to mix, form the TETRADECONIC ACID composite electrolytic solution that contains 0.1mol/l;
Step 3: two tinsels are put into electrolytic solution as anode and negative electrode, and the volts DS that loads 5～30V between anode and negative electrode carries out electrolysis, and electrolysis time is 1min～60min;
Step 4: after electrolysis is finished negative electrode is taken out in drying at room temperature 1min, on the cathodic metal surface, formed the laminated film of fe metallic particles and tetradecanoate.
2. according to the described method for preparing based superhydrophobic thin films of claim 1, it is characterized in that: described chlorate is iron(ic) chloride, Manganous chloride tetrahydrate, cupric chloride, Manganous chloride tetrahydrate, cobalt chloride, Lanthanum trichloride or nickelous chloride.
3. according to the described method for preparing based superhydrophobic thin films of claim 1, it is characterized in that: described tinsel is stainless steel, aluminium flake or copper sheet.
CN 201110045143 2011-02-24 2011-02-24 Method for preparing superhydrophobic film Pending CN102140659A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102352499A (en) * 2011-09-08 2012-02-15 西北工业大学 Method for preparing metal carboxylate super-hydrophobic coating on surface of metal
CN102534719A (en) * 2011-11-14 2012-07-04 西安科技大学 Electrochemical method for preparing super-hydrophobic surface on copper substrate
CN102691089A (en) * 2012-06-19 2012-09-26 西安科技大学 Electrochemical method for preparing superhydrophobic surface on copper substrates by using aqueous electrolyte
CN103451688A (en) * 2013-09-04 2013-12-18 吉林大学 Method for preparing super-hydrophobic biomimetic surface on copper substrate
CN103938247A (en) * 2014-04-22 2014-07-23 中国船舶重工集团公司第七二五研究所青岛分部 Preparation method of metal complex-perfluorpolyether oil complex phase coating
CN105369248A (en) * 2015-11-16 2016-03-02 河南大学 Preparation method for super-hydrophobic Co3O4 thin film of micro-nano composite structure
CN109112589A (en) * 2018-08-23 2019-01-01 华南理工大学 One kind preparing Co- TiO in metal surface2Super-hydrophobic nano composite deposite and preparation method thereof
CN110878421A (en) * 2018-09-06 2020-03-13 南京农业大学 Preparation of high-hydrophobicity Ni-Co-P-BN (h) -Al2O3Electrochemical method for binary nano composite coating
CN111218712A (en) * 2020-01-09 2020-06-02 大连理工大学 Preparation method of super-hydrophobic surface of electrolytic copper matrix
CN112522750A (en) * 2020-12-12 2021-03-19 山西农业大学 Preparation method of coating for improving surface corrosion resistance of 65Mn steel
CN114798384A (en) * 2022-04-06 2022-07-29 漳州顺圆盛工艺品有限公司 Method for spraying surface of copper handicraft

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101440510A (en) * 2007-11-21 2009-05-27 国家纳米科学中心 Preparation of super-hydrophobic surface for metal anti-corrosive and self-cleaning effects
CN101935859A (en) * 2010-08-27 2011-01-05 中国科学院海洋研究所 Simple and convenient method for preparing super-hydrophobic film on surface of metal matrix

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101440510A (en) * 2007-11-21 2009-05-27 国家纳米科学中心 Preparation of super-hydrophobic surface for metal anti-corrosive and self-cleaning effects
CN101935859A (en) * 2010-08-27 2011-01-05 中国科学院海洋研究所 Simple and convenient method for preparing super-hydrophobic film on surface of metal matrix

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102352499A (en) * 2011-09-08 2012-02-15 西北工业大学 Method for preparing metal carboxylate super-hydrophobic coating on surface of metal
CN102534719A (en) * 2011-11-14 2012-07-04 西安科技大学 Electrochemical method for preparing super-hydrophobic surface on copper substrate
CN102534719B (en) * 2011-11-14 2014-07-09 西安科技大学 Electrochemical method for preparing super-hydrophobic surface on copper substrate
CN102691089B (en) * 2012-06-19 2014-11-26 西安科技大学 Electrochemical method for preparing superhydrophobic surface on copper substrates by using aqueous electrolyte
CN102691089A (en) * 2012-06-19 2012-09-26 西安科技大学 Electrochemical method for preparing superhydrophobic surface on copper substrates by using aqueous electrolyte
CN103451688A (en) * 2013-09-04 2013-12-18 吉林大学 Method for preparing super-hydrophobic biomimetic surface on copper substrate
CN103938247B (en) * 2014-04-22 2016-04-27 中国船舶重工集团公司第七二五研究所青岛分部 The preparation method of a kind of metal complexes-perfluoro polyether oil duplex heat treatment
CN103938247A (en) * 2014-04-22 2014-07-23 中国船舶重工集团公司第七二五研究所青岛分部 Preparation method of metal complex-perfluorpolyether oil complex phase coating
CN105369248A (en) * 2015-11-16 2016-03-02 河南大学 Preparation method for super-hydrophobic Co3O4 thin film of micro-nano composite structure
CN105369248B (en) * 2015-11-16 2018-06-26 河南大学 One kind has the super-hydrophobic Co of micron and nanometer composite structure3O4The preparation method of film
CN109112589A (en) * 2018-08-23 2019-01-01 华南理工大学 One kind preparing Co- TiO in metal surface2Super-hydrophobic nano composite deposite and preparation method thereof
CN109112589B (en) * 2018-08-23 2020-11-24 华南理工大学 Preparation of Co-TiO on metal surface2Super-hydrophobic nano composite coating and preparation method thereof
CN110878421A (en) * 2018-09-06 2020-03-13 南京农业大学 Preparation of high-hydrophobicity Ni-Co-P-BN (h) -Al2O3Electrochemical method for binary nano composite coating
CN110878421B (en) * 2018-09-06 2023-11-24 南京农业大学 Preparation of high-hydrophobicity Ni-Co-P-BN (h) -Al 2 O 3 Electrochemical method of binary nano composite coating
CN111218712A (en) * 2020-01-09 2020-06-02 大连理工大学 Preparation method of super-hydrophobic surface of electrolytic copper matrix
CN112522750A (en) * 2020-12-12 2021-03-19 山西农业大学 Preparation method of coating for improving surface corrosion resistance of 65Mn steel
CN114798384A (en) * 2022-04-06 2022-07-29 漳州顺圆盛工艺品有限公司 Method for spraying surface of copper handicraft

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Application publication date: 20110803