CN109881266B - Controllable preparation method of fiber array based on super-amphiphobic surface - Google Patents
Controllable preparation method of fiber array based on super-amphiphobic surface Download PDFInfo
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Abstract
The invention discloses a controllable preparation method of a fiber array based on a super-amphiphobic surface, which comprises the following steps: a. preparing a super-amphiphobic surface on one surface of a glass sheet with the thickness of 30mm multiplied by 0.17mm to obtain a super-amphiphobic surface glass sheet; b. fully stirring and mixing the polymer and the solvent according to different mass ratios to prepare a polymer spinning solution; c. placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of a microfluid spinning machine, and rotating the glass sheet at the speed of 50r/min-500 r/min; d. and (2) extracting the prepared high-molecular spinning solution by using an injector, extruding the high-molecular spinning solution above a super-amphiphobic glass sheet at the speed of 0.05-0.5 mL/min by using a microflow pump of a microfluid spinning machine, transversely moving a stepping device of the microfluid spinning machine at the speed of 1-10 mm/s, and collecting the high-molecular spinning solution by using the super-amphiphobic glass sheet to obtain the high-molecular fibers in a regular array. The method for preparing the fiber array by performing the microfluid spinning on the super-amphiphobic surface has higher regularity of the obtained fiber array and simpler and easier preparation method.
Description
Technical Field
The invention belongs to the technical field of preparation of polymer fiber arrays, and particularly relates to a controllable preparation method of a fiber array based on a super-amphiphobic surface.
Background
The polymer fiber array can be designed and prepared by utilizing different preparation technologies due to the material composition, the array structure, the application characteristics and the like, has the characteristics of adjustability and controllability, easy transplantation, doping and the like, and has extremely wide application prospect in the fields of biomedical engineering, chemical industry, electrochemistry, flexible electronics and the like. At present, the design method of the polymer fiber array is mainly based on electrostatic spinning, but the ordinary electrostatic spinning is difficult to obtain the regularly arranged fiber array. In recent years, some novel fiber array spinning preparation methods are continuously developed based on the electrostatic spinning technology, and mainly include: a rotating shaft method, a parallel electrode method, a rotating disc method, a conductive template method, a magnetic spinning method and the like. However, these methods have limited regularity of the fiber array and still have disadvantages for application designs requiring high patterning requirements.
Therefore, a method for preparing a fiber array, which has a simple and feasible preparation process, a regular array, flexibility and controllability, and further transplantation operation, is needed to solve the above problems.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a controllable preparation method of a fiber array based on a super-amphiphobic surface, aiming at the defects of the prior art, wherein the preparation process of the fiber array is simple and easy to implement, and the fiber array has high array regularity and high flexible controllability.
The technical scheme adopted by the invention is as follows: a controllable preparation method of a fiber array based on a super-amphiphobic surface comprises the following steps:
a. preparing a super-amphiphobic surface on one surface of a glass sheet with the thickness of 30mm multiplied by 0.17mm to obtain a super-amphiphobic surface glass sheet;
b. fully stirring and mixing the polymer and the solvent according to different mass ratios to prepare a polymer spinning solution;
c. placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of a microfluid spinning machine, and rotating the glass sheet at the speed of 50r/min-500 r/min;
d. and pumping the prepared high molecular spinning solution by using an injector, injecting the high molecular spinning solution into a microflow pump of a microfluid spinning machine, extruding the high molecular spinning solution above a super-amphiphobic glass sheet by the microflow pump at the speed of 0.05-0.5 mL/min, transversely moving a stepping device of the microfluid spinning machine at the speed of 1-10 mm/s, and collecting the high molecular spinning solution by the super-amphiphobic glass sheet to obtain the high molecular fibers in a regular array.
In one embodiment, in step a, the super-amphiphobic surface is prepared as follows:
uniformly and slowly moving a glass sheet with the thickness of 30mm multiplied by 0.17mm in burning candle flame for 1min, collecting carbon nano-particles in the candle flame and uniformly depositing the carbon nano-particles on the glass sheet;
placing 20 glass sheets of 30mm × 30mm × 0.17mm with deposited carbon nanoparticles in a dryer with a diameter of 240mm at the bottom, placing 4mL of tetraethyl orthosilicate and 4mL of ammonia water in two independent beakers respectively, and placing the beakers in the dryer;
vacuumizing the dryer to-0.08 MPa, maintaining the sealing state for 24h, and depositing silicon dioxide nanoparticles on the carbon nanoparticles on the surface of the glass sheet by using a stober method through tetraethyl orthosilicate and ammonia water in the dryer;
taking out the glass sheet, placing the glass sheet in a muffle furnace, heating to 600 ℃, and removing carbon particles on the glass sheet;
and taking out the glass sheet, carrying out ion surface treatment, placing the glass sheet in a dryer, placing 0.1mL of fluorinated reagent in a beaker, placing the beaker in the dryer, vacuumizing the dryer to-0.08 MP, maintaining the sealing state for 2h, and volatilizing the fluorinated reagent to carry out fluorination with a silicon dioxide layer on the surface of the glass sheet to obtain the super-amphiphobic surface glass sheet.
In one embodiment, in step a, the thickness of the super-amphiphobic surface is 1 μm to 50 μm.
In one embodiment, in step b, the polymer is one of polymethyl methacrylate, polystyrene, polyvinylpyrrolidone, polyacrylonitrile, polyethylene oxide, and sodium polyacrylate.
In one embodiment, in step b, the solvent is one of N, N-dimethylformamide, ethanol or water.
In one embodiment, in the step d, the cross section of the obtained polymer fiber is circular, quasi-circular or elliptical, and is regularly arranged on the super-amphiphobic surface glass sheet in an integral cylindrical structure.
In one embodiment, when the super-amphiphobic surface glass sheet is prepared, the fluorinating agent is one of perfluorooctyl trichlorosilane, perfluorodecyl trichlorosilane, fluorooctyl dimethylchlorosilane, perfluorooctyl triethoxysilane, perfluorooctanoyl chloride or hexadecyltrichlorosilane.
In one embodiment, the contact angle of the super-amphiphobic surface glass sheet prepared by taking hexadecyl trichlorosilane as a fluorinating agent is more than or equal to 150 degrees.
The invention has the beneficial effects that: compared with a fiber array obtained by spinning by an electrostatic spinning method, the method for preparing the fiber array by performing microfluid spinning on the super-amphiphobic surface has the advantages that the regularity of the obtained fiber array is higher, the preparation method is simpler and easier to implement, the prepared fiber array is more flexible and controllable, more types of fibers can be prepared compared with the electrostatic spinning, the prepared fibers have cylindrical shapes, and the transfer operation is easier.
Drawings
FIG. 1 is a SEM image of a super-amphiphobic surface;
FIG. 2 is a schematic view of the contact angle of a polystyrene melt on a super-amphiphobic surface glass substrate;
FIG. 3 is a microscope image of a super-amphiphobic surface microfluid spinning polymethyl methacrylate fiber array;
FIG. 4 is a fiber diameter distribution plot;
FIG. 5 is a microscope image of a super-amphiphobic surface microfluid spinning polystyrene fiber array;
FIG. 6 is an SEM image of a super-amphiphobic surface microfluid spinning polystyrene fiber;
FIG. 7 is a boxplot of rotational speed versus fiber diameter;
FIG. 8 is a boxplot of rotational speed versus fiber array pitch;
FIG. 9 is a microscope image of a multi-layered fiber array with a polymethyl methacrylate lattice structure.
Detailed Description
The invention will be described in further detail with reference to the following drawings and specific embodiments.
Example 1:
a controllable preparation method of a fiber array based on a super-amphiphobic surface comprises the following steps:
step one, taking a 30mm multiplied by 0.17mm glass sheet to uniformly and slowly move in burning candle flame for 1min, collecting carbon nano particles in the candle flame and uniformly depositing the carbon nano particles on the glass sheet, placing 20 sheets of 30mm multiplied by 0.17mm glass sheets with deposited carbon nano particles in a dryer with the diameter of 240mm at the bottom, respectively placing 4mL of tetraethyl orthosilicate and 4mL of ammonia water in two independent beakers, placing the beakers in the dryer, vacuumizing the dryer to-0.08 MPa, maintaining the sealing state for 24h, and depositing silicon dioxide nano particles on the carbon nano particles on the surface of the glass sheet by a stober method through the tetraethyl orthosilicate and the ammonia water in the dryer; taking out the glass sheet, placing the glass sheet in a muffle furnace, heating to 600 ℃, removing carbon particles on the glass sheet, taking out the glass sheet, performing ion surface treatment, placing the glass sheet in a dryer, placing 0.1mL of fluorinated reagent in a beaker and in the dryer, vacuumizing the dryer to-0.08 MP, maintaining the sealing state for 2 hours, volatilizing the fluorinated reagent to perform fluorination with a silicon dioxide layer on the surface of the glass sheet, and obtaining the super-amphiphobic surface glass sheet with the super-amphiphobic surface thickness of 10 microns;
step two, fully stirring and mixing polymethyl methacrylate and N, N-dimethylformamide according to the mass ratio of 30% to prepare a polymer spinning solution;
thirdly, placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of the microfluid spinning machine, and rotating the glass sheet at the speed of 300 r/min;
and step four, pumping the prepared high molecular spinning solution by using an injector, injecting the high molecular spinning solution into a microflow pump of a microfluid spinning machine, extruding the microflow pump above a super-amphiphobic glass sheet at the speed of 0.3mL/min, transversely moving a stepping device of the microfluid spinning machine at the speed of 3mm/s, and collecting the high molecular spinning solution by the super-amphiphobic glass sheet to obtain the high molecular fibers in a regular array.
Example 2:
a controllable preparation method of a fiber array based on a super-amphiphobic surface comprises the following steps:
step one, taking a 30mm multiplied by 0.17mm glass sheet to uniformly and slowly move in burning candle flame for 1min, collecting carbon nano particles in the candle flame and uniformly depositing the carbon nano particles on the glass sheet, placing 20 sheets of 30mm multiplied by 0.17mm glass sheets with deposited carbon nano particles in a dryer with the diameter of 240mm at the bottom, respectively placing 4mL of tetraethyl orthosilicate and 4mL of ammonia water in two independent beakers, placing the beakers in the dryer, vacuumizing the dryer to-0.08 MPa, maintaining the sealing state for 24h, and depositing silicon dioxide nano particles on the carbon nano particles on the surface of the glass sheet by a stober method through the tetraethyl orthosilicate and the ammonia water in the dryer; taking out the glass sheet, placing the glass sheet in a muffle furnace, heating to 600 ℃, removing carbon particles on the glass sheet, taking out the glass sheet, performing ion surface treatment, placing the glass sheet in a dryer, placing 0.1mL of fluorinated reagent in a beaker and in the dryer, vacuumizing the dryer to-0.08 MP, maintaining the sealing state for 2 hours, volatilizing the fluorinated reagent to perform fluorination with a silicon dioxide layer on the surface of the glass sheet, and obtaining the super-amphiphobic surface glass sheet with the super-amphiphobic surface thickness of 10 microns;
step two, fully stirring and mixing polystyrene and N, N-dimethylformamide according to the mass ratio of 35% to prepare a high-molecular spinning solution;
thirdly, placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of the microfluid spinning machine, and rotating the glass sheet at the speed of 100 r/min;
and step four, pumping the prepared high molecular spinning solution by using an injector, injecting the high molecular spinning solution into a microflow pump of a microfluid spinning machine, extruding the microflow pump above a super-amphiphobic glass sheet at the speed of 0.05mL/min, transversely moving a stepping device of the microfluid spinning machine at the speed of 6mm/s, and collecting the high molecular spinning solution by the super-amphiphobic glass sheet to obtain the high molecular fibers in a regular array.
Example 3:
a controllable preparation method of a fiber array based on a super-amphiphobic surface comprises the following steps:
step one, taking a 30mm multiplied by 0.17mm glass sheet to uniformly and slowly move in burning candle flame for 1min, collecting carbon nano particles in the candle flame and uniformly depositing the carbon nano particles on the glass sheet, placing 20 sheets of 30mm multiplied by 0.17mm glass sheets with deposited carbon nano particles in a dryer with the diameter of 240mm at the bottom, respectively placing 4mL of tetraethyl orthosilicate and 4mL of ammonia water in two independent beakers, placing the beakers in the dryer, vacuumizing the dryer to-0.08 MPa, maintaining the sealing state for 24h, and depositing silicon dioxide nano particles on the carbon nano particles on the surface of the glass sheet by a stober method through the tetraethyl orthosilicate and the ammonia water in the dryer; taking out the glass sheet, placing the glass sheet in a muffle furnace, heating to 600 ℃, removing carbon particles on the glass sheet, taking out the glass sheet, performing ion surface treatment, placing the glass sheet in a dryer, placing 0.1mL of fluorinated reagent in a beaker and in the dryer, vacuumizing the dryer to-0.08 MP, maintaining the sealing state for 2 hours, volatilizing the fluorinated reagent to perform fluorination with a silicon dioxide layer on the surface of the glass sheet, and obtaining the super-amphiphobic surface glass sheet with the super-amphiphobic surface thickness of 20 microns;
step two, fully stirring and mixing polyvinylpyrrolidone and 25% of ethanol by mass ratio to prepare a high-molecular spinning solution;
thirdly, placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of the microfluid spinning machine, and rotating the glass sheet at the speed of 500 r/min;
and step four, pumping the prepared high molecular spinning solution by using an injector, injecting the high molecular spinning solution into a microflow pump of a microfluid spinning machine, extruding the microflow pump above a super-amphiphobic glass sheet at the speed of 0.1mL/min, transversely moving a stepping device of the microfluid spinning machine at the speed of 3mm/s, and collecting the high molecular spinning solution by the super-amphiphobic glass sheet to obtain the high molecular fibers in a regular array.
Example 4:
a controllable preparation method of a fiber array based on a super-amphiphobic surface comprises the following steps:
step one, taking a 30mm multiplied by 0.17mm glass sheet to uniformly and slowly move in burning candle flame for 1min, collecting carbon nano particles in the candle flame and uniformly depositing the carbon nano particles on the glass sheet, placing 20 sheets of 30mm multiplied by 0.17mm glass sheets with deposited carbon nano particles in a dryer with the diameter of 240mm at the bottom, respectively placing 4mL of tetraethyl orthosilicate and 4mL of ammonia water in two independent beakers, placing the beakers in the dryer, vacuumizing the dryer to-0.08 MPa, maintaining the sealing state for 24h, and depositing silicon dioxide nano particles on the carbon nano particles on the surface of the glass sheet by a stober method through the tetraethyl orthosilicate and the ammonia water in the dryer; taking out the glass sheet, placing the glass sheet in a muffle furnace, heating to 600 ℃, removing carbon particles on the glass sheet, taking out the glass sheet, performing ion surface treatment, placing the glass sheet in a dryer, placing 0.1mL of fluorinated reagent in a beaker and in the dryer, vacuumizing the dryer to-0.08 MP, maintaining the sealing state for 2 hours, volatilizing the fluorinated reagent to perform fluorination with a silicon dioxide layer on the surface of the glass sheet, and obtaining the super-amphiphobic surface glass sheet with the super-amphiphobic surface thickness of 10 microns;
secondly, fully stirring and mixing polyacrylonitrile and N, N-dimethylformamide according to the mass ratio of 30% to prepare a high-molecular spinning solution;
thirdly, placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of the microfluid spinning machine, and rotating the glass sheet at the speed of 100 r/min;
and step four, pumping the prepared high molecular spinning solution by using an injector, injecting the high molecular spinning solution into a microflow pump of a microfluid spinning machine, extruding the microflow pump above a super-amphiphobic glass sheet at the speed of 0.05mL/min, transversely moving a stepping device of the microfluid spinning machine at the speed of 6mm/s, and collecting the high molecular spinning solution by the super-amphiphobic glass sheet to obtain the high molecular fibers in a regular array.
Example 5:
a controllable preparation method of a fiber array based on a super-amphiphobic surface comprises the following steps:
step one, taking a 30mm multiplied by 0.17mm glass sheet to uniformly and slowly move in burning candle flame for 1min, collecting carbon nano particles in the candle flame and uniformly depositing the carbon nano particles on the glass sheet, placing 20 sheets of 30mm multiplied by 0.17mm glass sheets with deposited carbon nano particles in a dryer with the diameter of 240mm at the bottom, respectively placing 4mL of tetraethyl orthosilicate and 4mL of ammonia water in two independent beakers, placing the beakers in the dryer, vacuumizing the dryer to-0.08 MPa, maintaining the sealing state for 24h, and depositing silicon dioxide nano particles on the carbon nano particles on the surface of the glass sheet by a stober method through the tetraethyl orthosilicate and the ammonia water in the dryer; taking out the glass sheet, placing the glass sheet in a muffle furnace, heating to 600 ℃, removing carbon particles on the glass sheet, taking out the glass sheet, performing ion surface treatment, placing the glass sheet in a dryer, placing 0.1mL of fluorinated reagent in a beaker and in the dryer, vacuumizing the dryer to-0.08 MP, maintaining the sealing state for 2 hours, and volatilizing the fluorinated reagent to perform fluorination with a silicon dioxide layer on the surface of the glass sheet to obtain the super-amphiphobic surface glass sheet with the super-amphiphobic surface thickness of 1 mu m;
step two, fully stirring and mixing polyoxyethylene and water according to the mass ratio of 3% to prepare a high-molecular spinning solution;
thirdly, placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of the microfluid spinning machine, and rotating the glass sheet at the speed of 500 r/min;
and step four, pumping the prepared high molecular spinning solution by using an injector, injecting the high molecular spinning solution into a microflow pump of a microfluid spinning machine, extruding the microflow pump above a super-amphiphobic glass sheet at the speed of 0.05mL/min, transversely moving a stepping device of the microfluid spinning machine at the speed of 3mm/s, and collecting the high molecular spinning solution by the super-amphiphobic glass sheet to obtain the high molecular fibers in a regular array.
Example 6:
a controllable preparation method of a fiber array based on a super-amphiphobic surface comprises the following steps:
step one, taking a 30mm multiplied by 0.17mm glass sheet to uniformly and slowly move in burning candle flame for 1min, collecting carbon nano particles in the candle flame and uniformly depositing the carbon nano particles on the glass sheet, placing 20 sheets of 30mm multiplied by 0.17mm glass sheets with deposited carbon nano particles in a dryer with the diameter of 240mm at the bottom, respectively placing 4mL of tetraethyl orthosilicate and 4mL of ammonia water in two independent beakers, placing the beakers in the dryer, vacuumizing the dryer to-0.08 MPa, maintaining the sealing state for 24h, and depositing silicon dioxide nano particles on the carbon nano particles on the surface of the glass sheet by a stober method through the tetraethyl orthosilicate and the ammonia water in the dryer; taking out the glass sheet, placing the glass sheet in a muffle furnace, heating to 600 ℃, removing carbon particles on the glass sheet, taking out the glass sheet, performing ion surface treatment, placing the glass sheet in a dryer, placing 0.1mL of fluorinated reagent in a beaker and in the dryer, vacuumizing the dryer to-0.08 MP, maintaining the sealing state for 2 hours, and volatilizing the fluorinated reagent to perform fluorination with a silicon dioxide layer on the surface of the glass sheet to obtain the super-amphiphobic surface glass sheet with the super-amphiphobic surface thickness of 1 mu m;
step two, fully stirring and mixing sodium polyacrylate and water according to the mass ratio of 3% to prepare a high-molecular spinning solution;
thirdly, placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of the microfluid spinning machine, and rotating the glass sheet at the speed of 300 r/min;
and step four, pumping the prepared high molecular spinning solution by using an injector, injecting the high molecular spinning solution into a microflow pump of a microfluid spinning machine, extruding the microflow pump above a super-amphiphobic glass sheet at the speed of 0.1mL/min, transversely moving a stepping device of the microfluid spinning machine at the speed of 3mm/s, and collecting the high molecular spinning solution by the super-amphiphobic glass sheet to obtain the high molecular fibers in a regular array.
In the above examples 1 to 6, in the fourth step, the cross section of the obtained polymer fiber is circular, quasi-circular or elliptical, and is regularly arranged on the super-amphiphobic surface glass sheet in an overall cylindrical structure.
In examples 1 to 6, the fluorinating agent used in the preparation of the super-amphiphobic surface glass sheet was one of perfluorooctyltrichlorosilane, perfluorodecyltrichlorosilane, fluorooctyldimethylchlorosilane, perfluorooctyltriethoxysilane, perfluorooctanoyl chloride and hexadecyltrichlorosilane.
In examples 1 to 6, the contact angle of the super-amphiphobic surface glass sheet prepared by using hexadecyl trichlorosilane as a fluorinating agent was 150 degrees or more.
In the above examples, the ratio parameters of different polymer spinning solutions are shown in table 1:
table 1: parameter table for different polymer spinning solution ratios
| Polymer | Solvent(s) | Mass ratio of |
| Polymethyl methacrylate | N, N-dimethylformamide | 30％ |
| Polystyrene | N, N-dimethylformamide | 35 |
| Polyvinylpyrrolidone | Ethanol | |
| 25％ | ||
| Polyacrylonitrile | N, N-dimethylformamide | 30％ |
| Polyethylene oxide | Water (W) | 3％ |
| Polyacrylamide sodium salt | Water (W) | 3％ |
In fig. 3, Ve is 0.1mL/min, Vs is 3mm/s, and Vr is 80 r/min; in fig. 4, Ve is 0.1mL/min, Vs is 3mm/s, and Vr is 80 r/min; in fig. 5, Ve is 0.05mL/min, Vs is 3mm/s, and Vr is 80 r/min; in FIG. 7, the rotating speed is Vr, the fiber diameter is Df, Ve is 0.1mL/min, and Vs is 3 mm/s; in fig. 8, the rotating speed is Vr, the fiber array interval is Lg, Ve is 0.1mL/min, and Vs is 3 mm/s;
in FIG. 4, the overall distribution interval of the fiber diameter Df is 3.7 μm to 4.3. mu.m, wherein the frequency φ is as high as 75% in the interval of 3.8 μm to 4.0. mu.m, showing good monodispersity and a very narrow distribution interval of the fiber diameter Df.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. A controllable preparation method of a fiber array based on a super-amphiphobic surface is characterized by comprising the following steps: the method comprises the following steps:
a. preparing a super-amphiphobic surface on one surface of a glass sheet with the thickness of 30mm multiplied by 0.17mm to obtain a super-amphiphobic surface glass sheet;
b. fully stirring and mixing the polymer and the solvent according to different mass ratios to prepare a polymer spinning solution;
c. placing the super-amphiphobic surface glass sheet on a clamp of a stepping device of a microfluid spinning machine, and rotating the glass sheet at the speed of 50r/min-500 r/min;
d. and pumping the prepared high molecular spinning solution by using an injector, injecting the high molecular spinning solution into a microflow pump of a microfluid spinning machine, extruding the high molecular spinning solution above a super-amphiphobic glass sheet by the microflow pump at the speed of 0.05-0.5 mL/min, transversely moving a stepping device of the microfluid spinning machine at the speed of 1-10 mm/s, and collecting the high molecular spinning solution by the super-amphiphobic glass sheet to obtain the high molecular fibers in a regular array.
2. The controllable preparation method of the fiber array based on the super-amphiphobic surface according to the claim 1, which is characterized in that: in the step a, preparing a super-amphiphobic surface, specifically comprising the following steps:
uniformly and slowly moving a glass sheet with the thickness of 30mm multiplied by 0.17mm in burning candle flame for 1min to uniformly deposit carbon nano particles in the candle flame on the glass sheet;
placing 20 glass sheets of 30mm × 30mm × 0.17mm with deposited carbon nanoparticles in a dryer with a diameter of 240mm at the bottom, placing 4mL of tetraethyl orthosilicate and 4mL of ammonia water in two independent beakers respectively, and placing the beakers in the dryer;
vacuumizing the dryer to-0.08 MPa, maintaining the sealing state for 24h, and depositing silicon dioxide nanoparticles on the carbon nanoparticles on the surface of the glass sheet by using a stober method through tetraethyl orthosilicate and ammonia water in the dryer;
taking out the glass sheet, placing the glass sheet in a muffle furnace, heating to 600 ℃, and removing carbon particles on the glass sheet;
and taking out the glass sheet, carrying out ion surface treatment, placing the glass sheet in a dryer, placing 0.1mL of fluorinated reagent in a beaker, placing the beaker in the dryer, vacuumizing the dryer to-0.08 MP, maintaining the sealing state for 2h, and volatilizing the fluorinated reagent to carry out fluorination with a silicon dioxide layer on the surface of the glass sheet to obtain the super-amphiphobic surface glass sheet.
3. The controllable preparation method of the fiber array based on the super-amphiphobic surface according to the claim 1, which is characterized in that: in the step a, the thickness of the super-amphiphobic surface is 1-50 μm.
4. The controllable preparation method of the fiber array based on the super-amphiphobic surface according to the claim 1, which is characterized in that: in the step b, the polymer is one of polymethyl methacrylate, polystyrene, polyvinylpyrrolidone, polyacrylonitrile, polyethylene oxide or sodium polyacrylate.
5. The controllable preparation method of the fiber array based on the super-amphiphobic surface according to the claim 1, which is characterized in that: in the step b, the solvent is one of N, N-dimethylformamide, ethanol or water.
6. The controllable preparation method of the fiber array based on the super-amphiphobic surface according to the claim 1, which is characterized in that: in the step d, the cross section of the obtained polymer fiber is circular, quasi-circular or elliptical and is regularly arranged on the super-amphiphobic surface glass sheet in an integral cylindrical structure.
7. The controllable preparation method of the fiber array based on the super-amphiphobic surface according to the claim 2, which is characterized in that: when the super-amphiphobic surface glass sheet is prepared, the fluorinating reagent is one of perfluorooctyl trichlorosilane, perfluorodecyl trichlorosilane, fluorooctyl dimethylchlorosilane, perfluorooctyl triethoxysilane, perfluorooctanoyl chloride or hexadecyl trichlorosilane.
8. The controllable preparation method of the fiber array based on the super-amphiphobic surface according to claim 7, which is characterized in that: the super-amphiphobic surface glass sheet prepared by using hexadecyl trichlorosilane as a fluorinating reagent has a contact angle of more than or equal to 150 degrees.
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| CN108059359B (en) * | 2017-12-11 | 2020-11-10 | 大连理工大学 | Preparation method of surface with composite wettability characteristic |
| CN108328621B (en) * | 2018-01-30 | 2021-04-13 | 同济大学 | Preparation method of ultra-low-density silicon dioxide nanotube aerogel material |
| CN108286127B (en) * | 2018-02-02 | 2020-06-05 | 南京工业大学 | Preparation method of hydrophobic and oleophobic nanofiber membrane |
| CN108505129A (en) * | 2018-04-09 | 2018-09-07 | 南京捷纳思新材料有限公司 | A kind of device for spinning and technique preparing ordered nano-fibers array |
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