CN112811414A - Preparation method of super-hydrophobic material - Google Patents
Preparation method of super-hydrophobic material Download PDFInfo
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- CN112811414A CN112811414A CN202110038786.6A CN202110038786A CN112811414A CN 112811414 A CN112811414 A CN 112811414A CN 202110038786 A CN202110038786 A CN 202110038786A CN 112811414 A CN112811414 A CN 112811414A
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Abstract
The invention provides a preparation method of a super-hydrophobic material. The preparation steps are as follows: mixing concentrated sulfuric acid, flake graphite and carbon nano tubes, and mechanically stirring under an ice bath condition; slowly adding potassium permanganate, and continuously stirring under the ice bath condition; removing the ice bath, and mechanically stirring at 35 ℃ in a water bath; slowly dripping deionized water, slowly heating the mixture, keeping the temperature, and continuously reacting; adding deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution; precipitating the dispersion, drying and making into a film shape to obtain a film; preparing an ethanol solution of fluorosilane at room temperature, and stirring in a magnetic stirrer; coating the film with fluorosilane solution, and drying in a drying oven; taking out, and irradiating by a camera flash lamp to obtain the super-hydrophobic material. The contact angle of the super-hydrophobic material is more than 150 degrees, and the highest contact angle can reach 153.9 degrees, so that the super-hydrophobic material has good hydrophobicity.
Description
Technical Field
The invention relates to the field of materials, in particular to a preparation method of a super-hydrophobic material.
Background
The super-hydrophobic surface is a surface with a contact angle of more than 150 degrees and a rolling angle of less than 10 degrees with water, and has the functions of self-cleaning, corrosion resistance, water resistance and the like. The method has wide application in the fields of construction, biomedicine, packaging and the like. The formation of a superhydrophobic surface generally meets 2 requirements: firstly, constructing a rough surface with a micro-nano structure, and allowing air to be retained in a lower layer of water; secondly, surface modification is carried out by using a low surface energy reagent, thereby reducing the surface energy.
At present, the construction of a super-hydrophobic film is generally realized by two steps, firstly, a micro-nano concave-convex structure is prepared on the surface of a material, and then a molecular layer of a low-surface-energy substance with a hydrophobic effect is modified on the surface, so that the larger the surface roughness is, the more beneficial the increase of a water contact angle is. However, large roughness on the superhydrophobic surface structure can result in large light scattering, affecting haze, and thus making superhydrophobic films is challenging. Xu and the like are modified by adding 3-aminopropyl triethoxysilane into sol obtained by hydrolyzing tetraethoxysilane by using a sol-gel technology to prepare the organic-inorganic super-hydrophobic film. At present, the research of preparing the super-hydrophobic film by irradiating with a flash lamp of a camera is rarely reported.
Disclosure of Invention
The technical problem to be solved is as follows: the invention aims to provide a preparation method of a super-hydrophobic material, and the prepared super-hydrophobic material has a contact angle of more than 150 degrees, can reach 153.9 degrees at most and has good hydrophobicity.
The technical scheme is as follows: a preparation method of a super-hydrophobic material comprises the following steps:
(1) mixing 130mL of concentrated sulfuric acid, 5g of flake graphite and 2g of carbon nano tube, and mechanically stirring for 2 hours under the ice bath condition;
(2) slowly adding 15g of potassium permanganate, and continuously stirring for 2 hours under the ice bath condition;
(3) removing the ice bath, and mechanically stirring for 1h under the condition of 35 ℃ water bath;
(4) slowly dripping 230mL of deionized water, slowly heating the mixture until the temperature reaches 98-100 ℃, keeping the temperature, and continuously reacting for 30-50 min;
(5) adding 400mL of deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution;
(6) precipitating the dispersion, drying and making into a film shape to obtain a film;
(7) preparing an ethanol solution of fluorosilane at room temperature, and stirring the solution in a magnetic stirrer for 5 hours at a stirring speed of 50 rpm;
(8) coating the film with fluorosilane solution, placing in a drying oven, and drying at 120 deg.C for 20 min;
(9) taking out, and irradiating by a camera flash lamp to obtain the super-hydrophobic material.
Further, the carbon nano-tubes in the step (1) are multi-wall carbon nano-tubes, the diameter is 25-30nm, the inner diameter is 3-5nm, the outer diameter is 8-15nm, and the length is 3-12 μm.
Further, the concentration of the ethanol solution of fluorosilane in the step (7) is 1.0 wt%.
Further, in the step (9), the camera flash intensity GN/M is 32, and the irradiation time is 1/1000 s.
Has the advantages that:
1. the invention respectively carries out low, medium and high temperature reactions, wherein the medium temperature reaction aims at promoting the oxidation of graphite.
2. The invention firstly adopts fluorosilane to carry out film treatment, thus improving the hydrophobic property of the film.
3. After the camera flash lamp irradiates, the graphene and the carbon nano tube are successfully connected together, and the super-hydrophobic material with complete structure, good continuity and good uniformity is obtained.
4. The contact angle of each embodiment of the invention is more than 150 degrees, and can reach 153.9 degrees at most, and the invention has good hydrophobicity.
Detailed Description
Example 1
A preparation method of a super-hydrophobic material comprises the following steps:
(1) mixing 130mL of concentrated sulfuric acid, 5g of flake graphite and 2g of carbon nano tube, and mechanically stirring for 2h under the ice bath condition, wherein the carbon nano tube is a multi-wall carbon nano tube, the diameter of the multi-wall carbon nano tube is 25-30nm, the inner diameter of the multi-wall carbon nano tube is 3-5nm, the outer diameter of the multi-wall carbon nano tube is 8-15nm, and the length of the multi-wall carbon nano tube is 3-12 mu m;
(2) slowly adding 15g of potassium permanganate, and continuously stirring for 2 hours under the ice bath condition;
(3) removing the ice bath, and mechanically stirring for 1h under the condition of 35 ℃ water bath;
(4) slowly dripping 230mL of deionized water, slowly heating the mixture to 98 ℃, keeping the temperature, and continuously reacting for 30 min;
(5) adding 400mL of deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution;
(6) precipitating the dispersion, drying and making into a film shape to obtain a film;
(7) preparing an ethanol solution of fluorosilane with the concentration of 1.0 wt% at room temperature, and stirring the ethanol solution in a magnetic stirrer for 5 hours at the stirring speed of 50 rpm;
(8) coating the film with fluorosilane solution, placing in a drying oven, and drying at 120 deg.C for 20 min;
(9) and taking out, and irradiating by using a camera flash lamp, wherein the intensity of the camera flash lamp is GN/M (32), and the irradiation time is 1/1000s, so that the super-hydrophobic material is obtained.
Example 2
A preparation method of a super-hydrophobic material comprises the following steps:
(1) mixing 130mL of concentrated sulfuric acid, 5g of flake graphite and 2g of carbon nano tube, and mechanically stirring for 2h under the ice bath condition, wherein the carbon nano tube is a multi-wall carbon nano tube, the diameter of the multi-wall carbon nano tube is 25-30nm, the inner diameter of the multi-wall carbon nano tube is 3-5nm, the outer diameter of the multi-wall carbon nano tube is 8-15nm, and the length of the multi-wall carbon nano tube is 3-12 mu m;
(2) slowly adding 15g of potassium permanganate, and continuously stirring for 2 hours under the ice bath condition;
(3) removing the ice bath, and mechanically stirring for 1h under the condition of 35 ℃ water bath;
(4) slowly dripping 230mL of deionized water, slowly heating the mixture to 99 ℃, keeping the temperature, and continuously reacting for 35 min;
(5) adding 400mL of deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution;
(6) precipitating the dispersion, drying and making into a film shape to obtain a film;
(7) preparing an ethanol solution of fluorosilane with the concentration of 1.0 wt% at room temperature, and stirring the ethanol solution in a magnetic stirrer for 5 hours at the stirring speed of 50 rpm;
(8) coating the film with fluorosilane solution, placing in a drying oven, and drying at 120 deg.C for 20 min;
(9) and taking out, and irradiating by using a camera flash lamp, wherein the intensity of the camera flash lamp is GN/M (32), and the irradiation time is 1/1000s, so that the super-hydrophobic material is obtained.
Example 3
A preparation method of a super-hydrophobic material comprises the following steps:
(1) mixing 130mL of concentrated sulfuric acid, 5g of flake graphite and 2g of carbon nano tube, and mechanically stirring for 2h under the ice bath condition, wherein the carbon nano tube is a multi-wall carbon nano tube, the diameter of the multi-wall carbon nano tube is 25-30nm, the inner diameter of the multi-wall carbon nano tube is 3-5nm, the outer diameter of the multi-wall carbon nano tube is 8-15nm, and the length of the multi-wall carbon nano tube is 3-12 mu m;
(2) slowly adding 15g of potassium permanganate, and continuously stirring for 2 hours under the ice bath condition;
(3) removing the ice bath, and mechanically stirring for 1h under the condition of 35 ℃ water bath;
(4) slowly dripping 230mL of deionized water, slowly heating the mixture to 99 ℃, keeping the temperature, and continuously reacting for 40 min;
(5) adding 400mL of deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution;
(6) precipitating the dispersion, drying and making into a film shape to obtain a film;
(7) preparing an ethanol solution of fluorosilane with the concentration of 1.0 wt% at room temperature, and stirring the ethanol solution in a magnetic stirrer for 5 hours at the stirring speed of 50 rpm;
(8) coating the film with fluorosilane solution, placing in a drying oven, and drying at 120 deg.C for 20 min;
(9) and taking out, and irradiating by using a camera flash lamp, wherein the intensity of the camera flash lamp is GN/M (32), and the irradiation time is 1/1000s, so that the super-hydrophobic material is obtained.
Example 4
A preparation method of a super-hydrophobic material comprises the following steps:
(1) mixing 130mL of concentrated sulfuric acid, 5g of flake graphite and 2g of carbon nano tube, and mechanically stirring for 2h under the ice bath condition, wherein the carbon nano tube is a multi-wall carbon nano tube, the diameter of the multi-wall carbon nano tube is 25-30nm, the inner diameter of the multi-wall carbon nano tube is 3-5nm, the outer diameter of the multi-wall carbon nano tube is 8-15nm, and the length of the multi-wall carbon nano tube is 3-12 mu m;
(2) slowly adding 15g of potassium permanganate, and continuously stirring for 2 hours under the ice bath condition;
(3) removing the ice bath, and mechanically stirring for 1h under the condition of 35 ℃ water bath;
(4) slowly dripping 230mL of deionized water, slowly heating the mixture to 100 ℃, keeping the temperature, and continuously reacting for 50 min;
(5) adding 400mL of deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution;
(6) precipitating the dispersion, drying and making into a film shape to obtain a film;
(7) preparing an ethanol solution of fluorosilane with the concentration of 1.0 wt% at room temperature, and stirring the ethanol solution in a magnetic stirrer for 5 hours at the stirring speed of 50 rpm;
(8) coating the film with fluorosilane solution, placing in a drying oven, and drying at 120 deg.C for 20 min;
(9) and taking out, and irradiating by using a camera flash lamp, wherein the intensity of the camera flash lamp is GN/M (32), and the irradiation time is 1/1000s, so that the super-hydrophobic material is obtained.
Comparative example 1
The comparative example differs from example 4 in that it is not treated with a fluorosilane solution, as follows:
a preparation method of a super-hydrophobic material comprises the following steps:
(1) mixing 130mL of concentrated sulfuric acid, 5g of flake graphite and 2g of carbon nano tube, and mechanically stirring for 2h under the ice bath condition, wherein the carbon nano tube is a multi-wall carbon nano tube, the diameter of the multi-wall carbon nano tube is 25-30nm, the inner diameter of the multi-wall carbon nano tube is 3-5nm, the outer diameter of the multi-wall carbon nano tube is 8-15nm, and the length of the multi-wall carbon nano tube is 3-12 mu m;
(2) slowly adding 15g of potassium permanganate, and continuously stirring for 2 hours under the ice bath condition;
(3) removing the ice bath, and mechanically stirring for 1h under the condition of 35 ℃ water bath;
(4) slowly dripping 230mL of deionized water, slowly heating the mixture to 100 ℃, keeping the temperature, and continuously reacting for 50 min;
(5) adding 400mL of deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution;
(6) precipitating the dispersion, drying and making into a film shape to obtain a film;
(7) and taking out, and irradiating by using a camera flash lamp, wherein the intensity of the camera flash lamp is GN/M (32), and the irradiation time is 1/1000s, so that the super-hydrophobic material is obtained.
Comparative example 2
This comparative example differs from example 4 in that it was not processed with a camera flash, as follows:
a preparation method of a super-hydrophobic material comprises the following steps:
(1) mixing 130mL of concentrated sulfuric acid, 5g of flake graphite and 2g of carbon nano tube, and mechanically stirring for 2h under the ice bath condition, wherein the carbon nano tube is a multi-wall carbon nano tube, the diameter of the multi-wall carbon nano tube is 25-30nm, the inner diameter of the multi-wall carbon nano tube is 3-5nm, the outer diameter of the multi-wall carbon nano tube is 8-15nm, and the length of the multi-wall carbon nano tube is 3-12 mu m;
(2) slowly adding 15g of potassium permanganate, and continuously stirring for 2 hours under the ice bath condition;
(3) removing the ice bath, and mechanically stirring for 1h under the condition of 35 ℃ water bath;
(4) slowly dripping 230mL of deionized water, slowly heating the mixture to 100 ℃, keeping the temperature, and continuously reacting for 50 min;
(5) adding 400mL of deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution;
(6) precipitating the dispersion, drying and making into a film shape to obtain a film;
(7) preparing an ethanol solution of fluorosilane with the concentration of 1.0 wt% at room temperature, and stirring the ethanol solution in a magnetic stirrer for 5 hours at the stirring speed of 50 rpm;
(8) and coating the film with fluorosilane solution, putting the film into a drying oven, and drying the film for 20min at 120 ℃ to obtain the super-hydrophobic material. Contact angle measurements were performed for each example.
TABLE 1 contact angles of film surfaces
| Contact Angle/° | Roll angle/° | |
| Example 1 | 151.4 | 8.3 |
| Example 2 | 152.2 | 8.1 |
| Example 3 | 153.9 | 8.0 |
| 8. Example 4 | 153.3 | 8.1 |
| Comparative example 1 | 130.3 | 10.8 |
| Comparative example 2 | 112.8 | 11.1 |
As can be seen from Table 1, the contact angle of each example of the invention is more than 150 degrees, and the highest contact angle can reach 153.9 degrees, so that the hydrophobic property is good.
Claims (4)
1. The preparation method of the super-hydrophobic material is characterized by comprising the following steps:
(1) mixing 130mL of concentrated sulfuric acid, 5g of flake graphite and 2g of carbon nano tube, and mechanically stirring for 2 hours under the ice bath condition;
(2) slowly adding 15g of potassium permanganate, and continuously stirring for 2 hours under the ice bath condition;
(3) removing the ice bath, and mechanically stirring for 1h under the condition of 35 ℃ water bath;
(4) slowly dripping 230mL of deionized water, slowly heating the mixture until the temperature reaches 98-100 ℃, keeping the temperature, and continuously reacting for 30-50 min;
(5) adding 400mL of deionized water, and performing centrifugal washing until the solution is neutral to obtain a dispersion solution;
(6) precipitating the dispersion, drying and making into a film shape to obtain a film;
(7) preparing an ethanol solution of fluorosilane at room temperature, and stirring the solution in a magnetic stirrer for 5 hours at a stirring speed of 50 rpm;
(8) coating the film with fluorosilane solution, placing in a drying oven, and drying at 120 deg.C for 20 min;
(9) taking out, and irradiating by a camera flash lamp to obtain the super-hydrophobic material.
2. The silk template-based carbon nanotubes of claim 1, wherein the carbon nanotubes of step (1) are multi-walled carbon nanotubes having a diameter of 25-30nm, an inner diameter of 3-5nm, an outer diameter of 8-15nm and a length of 3-12 μm.
3. The method for preparing the superhydrophobic material according to claim 1, wherein: the concentration of the ethanol solution of fluorosilane in the step (7) is 1.0 wt%.
4. The method for preparing the superhydrophobic material according to claim 1, wherein: in the step (9), the camera flash intensity is GN/M32, and the irradiation time is 1/1000 s.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215855A (en) * | 2021-05-25 | 2021-08-06 | 北京航空航天大学 | Graphene paper capable of continuously regulating and controlling wettability of various liquids and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849727A (en) * | 2012-08-29 | 2013-01-02 | 中国科学院山西煤炭化学研究所 | Synthetic technology of graphite oxide |
| CN106241782A (en) * | 2016-07-27 | 2016-12-21 | 安徽理工大学 | The preparation method of Graphene/carbon nanotube composite material |
| CN106811114A (en) * | 2016-12-21 | 2017-06-09 | 中国科学院兰州化学物理研究所 | A kind of preparation method of aqueous super-hydrophobic/super-amphiphobic coating |
| CN107236139A (en) * | 2017-06-16 | 2017-10-10 | 青岛大学 | A kind of high-performance carbon nanotube/graphite oxide aerogel/poly styrene composite material and preparation method thereof |
| US20190345377A1 (en) * | 2018-05-14 | 2019-11-14 | Aramco Services Company | Nanocomposite coated proppants and methods of making and use thereof |
-
2021
- 2021-01-12 CN CN202110038786.6A patent/CN112811414A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849727A (en) * | 2012-08-29 | 2013-01-02 | 中国科学院山西煤炭化学研究所 | Synthetic technology of graphite oxide |
| CN106241782A (en) * | 2016-07-27 | 2016-12-21 | 安徽理工大学 | The preparation method of Graphene/carbon nanotube composite material |
| CN106811114A (en) * | 2016-12-21 | 2017-06-09 | 中国科学院兰州化学物理研究所 | A kind of preparation method of aqueous super-hydrophobic/super-amphiphobic coating |
| CN107236139A (en) * | 2017-06-16 | 2017-10-10 | 青岛大学 | A kind of high-performance carbon nanotube/graphite oxide aerogel/poly styrene composite material and preparation method thereof |
| US20190345377A1 (en) * | 2018-05-14 | 2019-11-14 | Aramco Services Company | Nanocomposite coated proppants and methods of making and use thereof |
Non-Patent Citations (2)
| Title |
|---|
| 任小孟: "Hummers法合成石墨烯的关键工艺及反应机理", 《材料工程》 * |
| 江雷: "从自然到仿生的超疏水纳米界面材料", 《化工进展》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215855A (en) * | 2021-05-25 | 2021-08-06 | 北京航空航天大学 | Graphene paper capable of continuously regulating and controlling wettability of various liquids and application thereof |
| CN113215855B (en) * | 2021-05-25 | 2022-05-13 | 北京航空航天大学 | Graphene paper capable of continuously regulating and controlling wettability of various liquids and application thereof |
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Application publication date: 20210518 |