CN112981973A - Preparation method of pH response super-hydrophobic material - Google Patents
Preparation method of pH response super-hydrophobic material Download PDFInfo
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- CN112981973A CN112981973A CN202110296946.7A CN202110296946A CN112981973A CN 112981973 A CN112981973 A CN 112981973A CN 202110296946 A CN202110296946 A CN 202110296946A CN 112981973 A CN112981973 A CN 112981973A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/042—Acrylic polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
- D06N3/009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by spraying components on the web
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/142—Hydrophobic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1685—Wear resistance
Abstract
The invention relates to a preparation method of a pH response super-hydrophobic material, and particularly relates to a pH response super-hydrophobic coating which is obtained by uniformly mixing super-hydrophobic silicon dioxide and an acrylate copolymer and spraying the mixture on a fabric substrate. The pH response super-hydrophobic material is prepared by introducing dimethylaminoethyl methacrylate as a pH response component on the basis of a super-hydrophobic material, so that super-hydrophobic-hydrophilic conversion of the super-hydrophobic material within a certain pH range is realized, the pH response super-hydrophobic material has good environmental responsiveness, good wear resistance, strong adhesion and good adaptability to a base material, the defects of complex operation and time consumption of the traditional water-oil separation mode are overcome, the post-treatment process required by the super-hydrophobic-super-oleophylic material is simplified from the perspective of separating a water phase, and the preparation process is simple and easy to control.
Description
Technical Field
The invention relates to a preparation method of a pH response super-hydrophobic material, and particularly belongs to the technical field of hydrophobic materials.
Background
With the popularization of the concept of green environmental protection, the pollution problem of the discharge of daily life waste water to water resources and environment is more and more concerned by society. For the treatment of oily wastewater, the common methods are suspension, centrifugation and filtration, and the operation process of these methods is complicated and time-consuming. In recent years, superhydrophobic-superoleophilic materials have gained favor because they can separate oil and water mixtures by gravity alone without the need for additional external force as a driving force. The separation mechanism of the super-hydrophobic-super-oleophilic material is to block the water phase and allow the oil phase to permeate through the porous material. However, the problem is that the viscosity of the oil phase is high, and the porous material can cause a part of the oil phase to remain in the material when the oil phase permeates through, so that a post-treatment process is required to remove the part of the remaining oil phase through external force extrusion. At present, a single-function material cannot meet the development requirement, the super-hydrophobic function and the responsive function are subjected to synergistic effect, and the pH-responsive super-hydrophobic material can solve the problem from the aspect of separating a water phase and combining the conditions in actual life. Aiming at the acidic domestic wastewater, the pH response super-hydrophobic material is hydrophilic and can permeate a water phase to achieve the effect of water-oil separation. In alkaline wastewater, the material has super-hydrophobic performance, and the surface of the material can be ensured to be clean.
Disclosure of Invention
The invention aims to provide a preparation method of a pH response super-hydrophobic material, which is mainly characterized in that on the basis of the super-hydrophobic material, dimethylamine ethyl methacrylate is introduced as a pH response component to realize super-hydrophobic-hydrophilic conversion of the super-hydrophobic material within a certain pH range, so that the pH response and super-hydrophobic multifunctional response material is obtained.
The preparation method of the pH response super-hydrophobic material comprises the following steps:
step 1: preparation of super-hydrophobic silica
Sequentially adding absolute ethyl alcohol, deionized water and silicate ester into a single-neck flask according to the mass ratio of 10.5-12.5: 25-35: 21.8-22.7, then placing the single-neck flask into an oil bath pan to adjust the temperature to 60-70 ℃, adding an alkaline catalyst to adjust the pH to 9-10, and magnetically stirring at the rotating speed of 700-750 r/min for 5-8 hours to obtain a silicon dioxide stock solution;
according to the mass ratio of 8.7-9.6: 35-45: 1.5-2.4, magnetically stirring a silicon dioxide stock solution, an alcohol solvent and a silane coupling agent at the temperature of 60-70 ℃ and the rotating speed of 700-750 r/min for reaction for 2-3 h, and washing, centrifugally separating and drying a product to obtain the super-hydrophobic silicon dioxide;
step 2: preparation of acrylate copolymers
Adding a solvent into a four-neck flask with a constant-pressure dropping funnel, adjusting the reaction temperature to 65-75 ℃, and continuously introducing nitrogen for 5-10 min; according to the molar ratio, preparing a mixed solution of an acrylic acid A component, an acrylic acid B component, dimethylaminoethyl methacrylate, a solvent and an initiator in a ratio of 1.5-2.7: 1.7-3: 3.8-5.5: 37-45: 0.2-0.6, transferring the mixed solution into a constant-pressure dropping funnel, and continuing introducing nitrogen into a four-neck flask for 5-10 min to start dropping; stirring and reacting for 5-6 h, then adding an initiator, finishing the reaction after 8h, and purifying and drying the obtained copolymerization product by using normal hexane to obtain an acrylate copolymer; wherein the mass ratio of the supplemented initiator to the added initiator is 0.2-0.4: 1;
and step 3: preparation of the coating
Alternately oscillating and cleaning the fabric for 2 times by using deionized water and ethanol, and drying for later use;
dispersing the acrylate copolymer in absolute ethyl alcohol according to the mass ratio of 7-9: 53-56, and uniformly stirring by magnetic force to obtain an acrylate copolymer dispersion liquid;
adding super-hydrophobic silicon dioxide into the acrylate copolymer dispersion liquid, and stirring while adding to obtain a mixed solution with the silicon dioxide concentration of 3.5-4.5 wt.%;
and spraying the mixed solution on the surface of the fabric, wherein the distance between a spray gun and the surface of the fabric is 30cm, the caliber of the spray gun is 1.0mm, the spraying pressure is controlled to be 0.8MPa, the spraying time is 2-5 s, a layer is sprayed, three layers are sprayed, and after the solvent is volatilized, a film is formed, so that the pH-responsive superhydrophobic material is prepared.
The silicate is one or a combination of more of propyl orthosilicate, tetrabutyl orthosilicate, ethyl silicate and methyl orthosilicate.
The alkaline catalyst is one or the combination of two of ammonia water and sodium hydroxide.
The alcohol solvent is one or a combination of methanol, ethanol and isopropanol.
The silane coupling agent is one or a combination of more of dodecyl trimethoxy silane coupling agent, hexadecyl trimethoxy silane coupling agent, octadecyl trimethoxy silane coupling agent, dodecyl triethoxy silane coupling agent, hexadecyl triethoxy silane coupling agent and octadecyl triethoxy silane coupling agent.
The solvent is one or a combination of more of tetrahydrofuran, isopropanol and toluene.
The acrylic ester A component and the acrylic ester B component are respectively different one of methyl acrylate, methyl methylamino acrylate, butyl acrylate, ethyl methacrylate, isobutyl acrylate and isooctyl acrylate.
The initiator is one or the combination of azodiisobutyronitrile and benzoyl peroxide.
The invention has the beneficial effects that: the pH response super-hydrophobic material is prepared by introducing dimethylaminoethyl methacrylate as a pH response component on the basis of a super-hydrophobic material, so that super-hydrophobic-hydrophilic conversion of the super-hydrophobic material within a certain pH range is realized, the pH response super-hydrophobic material has good environmental responsiveness, good wear resistance, strong adhesion and good adaptability to a base material, the defects of complex operation and time consumption of the traditional water-oil separation mode are overcome, the post-treatment process required by the super-hydrophobic-super-oleophylic material is simplified from the perspective of separating a water phase, and the preparation process is simple and easy to control.
Detailed Description
Example 1
preparation of pH-responsive super-hydrophobic material:
step 1: sequentially adding absolute ethyl alcohol, deionized water and tetraethoxysilane into a single-neck flask according to the mass ratio of 11.5: 35: 22.5, placing the single-neck flask in an oil bath pot, adjusting the temperature to 65 ℃, adding ammonia water to adjust the pH value to 9, stirring at a magnetic stirring speed of 750r/min for 6 hours to obtain a silicon dioxide stock solution; the stock solution, the absolute ethyl alcohol and the hexadecyl trimethyl ammonium bromide are controlled to be 8: 45: 1.6 in proportion, and the reaction is carried out for 2 hours under the same experimental reaction condition. Washing, centrifuging and drying the product to obtain the super-hydrophobic silicon dioxide;
step 2: taking a four-mouth flask, adding tetrahydrofuran, wherein the mass ratio of the tetrahydrofuran to the maximum volume of the flask is 25: 100, adjusting the reaction temperature to 65 ℃, continuously introducing common nitrogen for 5min, controlling the ratio of methyl acrylate, octadecyl methacrylate, dimethylaminoethyl methacrylate, tetrahydrofuran and azobisisobutyronitrile to be 1.5: 2.5: 4.5: 45: 0.2 according to the molar ratio, preparing a mixed solution, transferring the mixed solution into a constant-pressure dropping funnel, introducing nitrogen into a reaction monomer for 5min, and starting dropping. Reacting for 6 hours, and supplementing the azobisisobutyronitrile, wherein the mass ratio of the supplemented azobisisobutyronitrile to the added azobisisobutyronitrile is 0.3: 1. After the reaction is finished for 8 hours, purifying the copolymer by normal hexane, and drying to obtain an acrylate copolymer;
and step 3: preparing a coating: the fabric is alternately oscillated and cleaned for 2 times by deionized water and ethanol, and dried for later use. Dispersing the acrylate copolymer obtained in the second step into absolute ethyl alcohol, wherein the ratio of the acrylate copolymer to the absolute ethyl alcohol is 8: 55 according to the mass ratio, and uniformly stirring by magnetic force. Adding the super-hydrophobic silicon dioxide obtained in the first step into the copolymer dispersion liquid, stirring while adding to obtain a mixed solution with the silicon dioxide concentration of 4wt.%, uniformly mixing, respectively spraying the mixed solution onto the surface of the treated fabric, spraying a spray gun with the distance of 30cm from the surface of the fabric and the caliber of the spray gun of 1.0mm, controlling the spraying pressure to be 0.8MPa, spraying a layer of coating within 2s, spraying three layers, and volatilizing the solvent to form a film to obtain the super-hydrophobic material with pH response.
Example 2
Step 1: according to the mass ratio, adding anhydrous ethanol, deionized water and propyl orthosilicate into a single-neck flask in sequence, wherein the proportion of the anhydrous ethanol to the deionized water to the propyl orthosilicate is 12.3: 32: 22, placing the mixture in an oil bath pot, adjusting the temperature to 69 ℃, adding ammonia water to adjust the pH value to 9, stirring at the magnetic stirring speed of 700r/min, and reacting for 6 hours to obtain a silicon dioxide stock solution; the stock solution, the absolute ethyl alcohol and the dodecyl trimethoxy silane are controlled to be 9.3: 40: 2 in proportion, and the reaction is carried out for 3 hours under the same experimental reaction condition. Washing, centrifuging and drying the product to obtain the super-hydrophobic silicon dioxide;
step 2: preparation of acrylate copolymer: taking a four-mouth flask, adding tetrahydrofuran, wherein the mass ratio of the tetrahydrofuran to the maximum volume of the flask is 30: 100, adjusting the reaction temperature to be 67 ℃, continuously introducing common nitrogen for 5min, controlling the ratio of octyl acrylate, methyl methacrylate, dimethylaminoethyl methacrylate, tetrahydrofuran and benzoyl peroxide to be 1.6: 1.8: 4.2: 43: 0.3 according to the molar ratio, preparing a mixed solution, transferring the mixed solution into a constant-pressure dropping funnel, introducing nitrogen into a reaction monomer for 10min, and starting dropping. After the reaction is carried out for 7 hours, the additional benzoyl peroxide is added, and the mass ratio of the additional benzoyl peroxide to the added benzoyl peroxide is 0.2: 1. After the reaction is finished for 8 hours, purifying the copolymer by normal hexane, and drying to obtain an acrylate copolymer;
and step 3: preparing a coating: the fabric is alternately oscillated and cleaned for 2 times by deionized water and ethanol, and dried for later use. Dispersing the acrylate copolymer obtained in the second step into absolute ethyl alcohol, wherein the ratio of the acrylate copolymer to the absolute ethyl alcohol is 8: 55 according to the mass ratio, and uniformly stirring by magnetic force. Adding the super-hydrophobic silicon dioxide obtained in the first step into the copolymer dispersion liquid, stirring while adding to obtain a mixed solution with the silicon dioxide concentration of 3.7wt.%, uniformly mixing, respectively spraying the mixed solution onto the surface of the treated fabric, spraying a layer of coating with a spray gun spaced 30cm from the surface of the fabric and the caliber of the spray gun of 1.0mm, controlling the spraying pressure to be 0.8MPa, spraying a layer of coating for 2s, spraying three layers of coating, and volatilizing the solvent to form a film to obtain the super-hydrophobic material with pH response.
Example 3
Step 1: preparation of super-hydrophobic silica: sequentially adding absolute ethyl alcohol, deionized water and methyl orthosilicate in a mass ratio of 10.5: 30: 22.5 into a single-neck flask, placing the flask in an oil bath pot, adjusting the temperature to 67 ℃, adding an alkaline catalyst to adjust the pH to 10, and reacting for 6 hours to obtain a silicon dioxide stock solution, wherein the magnetic stirring speed is 720 r/min; the stock solution, absolute ethyl alcohol and hexadecyl triethoxy silane are controlled to be 9: 45: 2.2 in proportion, and the reaction is carried out for 2 hours under the same experimental reaction conditions. Washing, centrifuging and drying the product to obtain the super-hydrophobic silicon dioxide;
step 2: preparation of acrylate copolymer: taking a four-mouth flask according to the mass ratio, adding tetrahydrofuran, controlling the mass ratio of the tetrahydrofuran to the maximum volume of the flask to be 35: 100, adjusting the reaction temperature to be 69 ℃, continuously introducing common nitrogen for 5min, controlling the ratio of isobutyl acrylate, octadecyl methacrylate, dimethylaminoethyl methacrylate, tetrahydrofuran and azobisisobutyronitrile to be 2.3: 1.9: 5: 45: 0.2 according to the mass ratio, preparing a mixed solution, transferring the mixed solution into a constant-pressure dropping funnel, introducing nitrogen into a reaction monomer for 5min, and starting dropping. And (3) after 4 hours of reaction, replenishing azodiisobutyronitrile, wherein the mass ratio of the replenished azodiisobutyronitrile to the added azodiisobutyronitrile is 0.2: 1, after 8 hours of reaction, purifying the copolymer by normal hexane, and drying to obtain the acrylate copolymer.
And step 3: preparing a coating: the fabric is alternately oscillated and cleaned for 2 times by deionized water and ethanol, and dried for later use. Dispersing the acrylate copolymer obtained in the second step into absolute ethyl alcohol, wherein the ratio of the acrylate copolymer to the absolute ethyl alcohol is 8: 55 according to the mass ratio, and uniformly stirring by magnetic force. Adding the super-hydrophobic silicon dioxide obtained in the first step into the copolymer dispersion liquid, stirring while adding to obtain a mixed solution with the silicon dioxide concentration of 4.5wt.%, uniformly mixing, respectively spraying the mixed solution onto the surface of the treated fabric, spraying a layer of spray gun with the distance of 30cm from the surface of the fabric and the caliber of the spray gun of 1.0mm, controlling the spraying pressure to be 0.8MPa, spraying a layer of spray gun for 2s, spraying three layers of spray gun, and volatilizing the solvent to form a film to obtain the super-hydrophobic material with pH response.
Claims (8)
1. A preparation method of a pH response super-hydrophobic material is characterized by comprising the following steps: the preparation method comprises the following steps:
step 1: preparation of super-hydrophobic silica
Sequentially adding absolute ethyl alcohol, deionized water and silicate ester into a single-neck flask according to the mass ratio of 10.5-12.5: 25-35: 21.8-22.7, then placing the single-neck flask into an oil bath pan to adjust the temperature to 60-70 ℃, adding an alkaline catalyst to adjust the pH to 9-10, and magnetically stirring at the rotating speed of 700-750 r/min for 5-8 hours to obtain a silicon dioxide stock solution;
according to the mass ratio of 8.7-9.6: 35-45: 1.5-2.4, magnetically stirring a silicon dioxide stock solution, an alcohol solvent and a silane coupling agent at the temperature of 60-70 ℃ and the rotating speed of 700-750 r/min for reaction for 2-3 h, and washing, centrifugally separating and drying a product to obtain the super-hydrophobic silicon dioxide;
step 2: preparation of acrylate copolymers
Adding a solvent into a four-neck flask with a constant-pressure dropping funnel, adjusting the reaction temperature to 65-75 ℃, and continuously introducing nitrogen for 5-10 min; according to the molar ratio, preparing a mixed solution of an acrylic acid A component, an acrylic acid B component, dimethylaminoethyl methacrylate, a solvent and an initiator in a ratio of 1.5-2.7: 1.7-3: 3.8-5.5: 37-45: 0.2-0.6, transferring the mixed solution into a constant-pressure dropping funnel, and continuing introducing nitrogen into a four-neck flask for 5-10 min to start dropping; stirring and reacting for 5-6 h, then adding an initiator, finishing the reaction after 8h, and purifying and drying the obtained copolymerization product by using normal hexane to obtain an acrylate copolymer; wherein the mass ratio of the supplemented initiator to the added initiator is 0.2-0.4: 1;
and step 3: preparation of the coating
Alternately oscillating and cleaning the fabric for 2 times by using deionized water and ethanol, and drying for later use;
dispersing the acrylate copolymer in absolute ethyl alcohol according to the mass ratio of 7-9: 53-56, and uniformly stirring by magnetic force to obtain an acrylate copolymer dispersion liquid;
adding super-hydrophobic silicon dioxide into the acrylate copolymer dispersion liquid, and stirring while adding to obtain a mixed solution with the silicon dioxide concentration of 3.5-4.5 wt.%;
and spraying the mixed solution on the surface of the fabric, wherein the distance between a spray gun and the surface of the fabric is 30cm, the caliber of the spray gun is 1.0mm, the spraying pressure is controlled to be 0.8MPa, the spraying time is 2-5 s, a layer is sprayed, three layers are sprayed, and after the solvent is volatilized, a film is formed, so that the pH-responsive superhydrophobic material is prepared.
2. The method for preparing the pH-responsive superhydrophobic material of claim 1, wherein: the silicate is one or a combination of more of propyl orthosilicate, tetrabutyl orthosilicate, ethyl silicate and methyl orthosilicate.
3. The method for preparing the pH-responsive superhydrophobic material of claim 1, wherein: the alkaline catalyst is one or the combination of two of ammonia water and sodium hydroxide.
4. The method for preparing the pH-responsive superhydrophobic material of claim 1, wherein: the alcohol solvent is one or a combination of methanol, ethanol and isopropanol.
5. The method for preparing the pH-responsive superhydrophobic material of claim 1, wherein: the silane coupling agent is one or a combination of more of dodecyl trimethoxy silane coupling agent, hexadecyl trimethoxy silane coupling agent, octadecyl trimethoxy silane coupling agent, dodecyl triethoxy silane coupling agent, hexadecyl triethoxy silane coupling agent and octadecyl triethoxy silane coupling agent.
6. The method for preparing the pH-responsive superhydrophobic material of claim 1, wherein: the solvent is one or a combination of more of tetrahydrofuran, isopropanol and toluene.
7. The method for preparing the pH-responsive superhydrophobic material of claim 1, wherein: the acrylic ester A component and the acrylic ester B component are respectively different one of methyl acrylate, methyl methylamino acrylate, butyl acrylate, ethyl methacrylate, isobutyl acrylate and isooctyl acrylate.
8. The method for preparing the pH-responsive superhydrophobic material of claim 1, wherein: the initiator is one or the combination of azodiisobutyronitrile and benzoyl peroxide.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014097309A1 (en) * | 2012-12-17 | 2014-06-26 | Asian Paints Ltd. | Stimuli responsive self cleaning coating |
| CN106632829A (en) * | 2016-12-21 | 2017-05-10 | 齐鲁工业大学 | Material changed from super-amphiphilic to super-hydrophobic/super-oleophylic by virtue of pH control and preparation method thereof |
| CN110205023A (en) * | 2019-06-21 | 2019-09-06 | 重庆市科学技术研究院 | With hydrophobic, antiseptic property composite Nano coating material and its preparation method and application |
| CN110734655A (en) * | 2019-10-08 | 2020-01-31 | 齐鲁工业大学 | pH-responsive super-hydrophobic coating material, and preparation method and application thereof |
| CN111171648A (en) * | 2020-03-12 | 2020-05-19 | 南昌航空大学 | Preparation method of wear-resistant super-hydrophobic coating |
-
2021
- 2021-03-19 CN CN202110296946.7A patent/CN112981973A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014097309A1 (en) * | 2012-12-17 | 2014-06-26 | Asian Paints Ltd. | Stimuli responsive self cleaning coating |
| CN106632829A (en) * | 2016-12-21 | 2017-05-10 | 齐鲁工业大学 | Material changed from super-amphiphilic to super-hydrophobic/super-oleophylic by virtue of pH control and preparation method thereof |
| CN110205023A (en) * | 2019-06-21 | 2019-09-06 | 重庆市科学技术研究院 | With hydrophobic, antiseptic property composite Nano coating material and its preparation method and application |
| CN110734655A (en) * | 2019-10-08 | 2020-01-31 | 齐鲁工业大学 | pH-responsive super-hydrophobic coating material, and preparation method and application thereof |
| CN111171648A (en) * | 2020-03-12 | 2020-05-19 | 南昌航空大学 | Preparation method of wear-resistant super-hydrophobic coating |
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Application publication date: 20210618 |