CN113182691A - Method for preparing super-hydrophobic film by using femtosecond laser etching coating machine substrate - Google Patents

Method for preparing super-hydrophobic film by using femtosecond laser etching coating machine substrate Download PDF

Info

Publication number
CN113182691A
CN113182691A CN202110405561.XA CN202110405561A CN113182691A CN 113182691 A CN113182691 A CN 113182691A CN 202110405561 A CN202110405561 A CN 202110405561A CN 113182691 A CN113182691 A CN 113182691A
Authority
CN
China
Prior art keywords
femtosecond laser
coating machine
film
micro
base material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110405561.XA
Other languages
Chinese (zh)
Inventor
沈冬冬
辛斌杰
刘毅
余淼
孔方圆
于文杰
罗健
袁秀文
朱润虎
范明珠
周园园
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai University of Engineering Science
Original Assignee
Shanghai University of Engineering Science
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai University of Engineering Science filed Critical Shanghai University of Engineering Science
Priority to CN202110405561.XA priority Critical patent/CN113182691A/en
Publication of CN113182691A publication Critical patent/CN113182691A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/3568—Modifying rugosity
    • B23K26/3584—Increasing rugosity, e.g. roughening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/362—Laser etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/10—Metallic substrate based on Fe
    • B05D2202/15—Stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
    • B05D2203/35—Glass

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses a method for preparing a super-hydrophobic film by using femtosecond laser to etch a coating machine substrate, which comprises the following steps: fixing a coating machine substrate on a three-dimensional precision moving platform, focusing femtosecond laser on the surface of the coating machine substrate through a microscope objective, controlling the three-dimensional precision moving platform to move, focusing the femtosecond laser on the surface of the coating machine substrate for etching, adjusting the moving speed of the three-dimensional precision moving platform to repeat the etching to obtain a coating machine micro-nano substrate, forming a film on the surface of the coating machine substrate in a solution coating or melt deposition mode, and drying after solidification to obtain the super-hydrophobic film with a 3D micro-texture structure on the surface. According to the invention, the femtosecond laser is adopted to etch the hard base material of the coating machine to obtain the micro-nano base material, and then the film is formed on the surface of the micro-nano base material to obtain the 3D micro texture structure, so that the contact angle of liquid drops is increased, the hydrophobic property of the film is greatly improved, and the coating machine can be used for film distillation materials, glass curtain walls, field photoelectric instruments or precision instruments.

Description

Method for preparing super-hydrophobic film by using femtosecond laser etching coating machine substrate
Technical Field
The invention relates to a preparation method of a super-hydrophobic film, in particular to a method for preparing a super-hydrophobic film by using a femtosecond laser etching coating machine substrate.
Background
The nanostructured surface exhibits a higher static water contact angle and strong water adhesion, since the horizontal arrangement of the nanostructures on the surface of the film creates more solid-liquid interfaces, increasing the adhesion of water, and the combination of the microstructures and nanostructures on the surface of the film can significantly reduce the adhesion of water. One of the common methods to increase the surface roughness of materials is to create a uniform micro-texture on the surface of the film by using a templated substrate, Polydimethylsiloxane (PDMS) is widely used for templated substrates, and some cast PVDF films on PDMS molds, with textured PVDF films having a static water contact angle of 166 °, a sliding angle of 15.8 °, while ordinary PVDF films possess a lower static water contact angle (139.2 °) and a larger sliding angle (>90 °). However, since the process of producing the PDMS mold is relatively complicated, the casting and application of the film based on the micro-texture are limited.
One has synthesized 3D micro-textured PVDF films by direct casting on different templated microstructured substrates, using 5000 mesh fabrics and non-woven fabrics as templated micro-substrates, with different widths and depths of the micro-valleys, the resulting PVDF film with non-woven templated substrates shows high average surface roughness, enhanced fluid shear near the surface of the film, dirt is difficult to adhere to, the film also shows superhydrophobicity, static water contact angles up to 156 °, dynamic sliding angles as low as 5 °. However, when the polymer solution is coated on a template substrate to prepare a super-hydrophobic film, the film is difficult to separate from the fabric after being subjected to a water bath or an alcohol bath, and the 3D micro texture structure of the surface of the prepared film is uncontrollable.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a method for preparing a super-hydrophobic film by using femtosecond laser to etch a coating machine substrate, which combines a femtosecond laser three-dimensional micro-nano processing technology with a coating machine hard substrate, endows the coating machine hard substrate with a 3D micro texture structure required, improves the hydrophobicity of the film, and has the advantages of simple process operation and low cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for preparing a super-hydrophobic film by using a femtosecond laser etching coating machine substrate comprises the following steps:
(1) fixing a coating machine base material on a three-dimensional precision moving platform, and focusing the coating machine base material on the surface of the coating machine base material through a microscope objective by adopting a femtosecond laser with the pulse width of 40-160 fs and the wavelength of 338-1100 nm;
(2) controlling the moving speed of the three-dimensional precise moving platform to be 0.2 mu m/s-0.5 mm/s, controlling the single pulse energy of the femtosecond laser to be 15 nJ-5 mJ, controlling the pulse repetition frequency to be 20 Hz-100 kHz and controlling the pulse width to be 40-140 fs, and focusing the femtosecond laser on the surface of the base material of the coating machine for etching processing;
(3) after the basic morphology of the micro-nano base material is processed in the step (2), adjusting the moving speed of the three-dimensional precision moving platform to be 0.2-100 um/s, repeating etching processing under the same condition with the femtosecond laser in the step (2), and controlling the precision and the surface roughness of the morphology to obtain the micro-nano base material of the coating machine;
(4) and (3) coating a solution of a hydrophobic polymer and an organic solvent or depositing a hydrophobic polymer melt on the surface of the micro-nano base material of the coating machine in the step (3) to form a film, and drying the film after curing to obtain the super-hydrophobic film with the 3D micro-texture structure on the surface.
Preferably, the material of the coating machine substrate is selected from quartz glass, silicon or stainless steel.
Preferably, the numerical aperture (n.a) of the microscope objective is 0.15 to 0.95.
Preferably, the hydrophobic polymer is selected from one or more of polyvinylidene fluoride (PVDF), vinylidene fluoride homopolymer, Polyethylene (PE), polypropylene (PP), Polystyrene (PS), polyvinyl chloride (PVC), Polyethersulfone (PEs), and Polyacrylonitrile (PAN).
Preferably, the organic solvent is selected from one or a combination of two or more of N, N '-Dimethylformamide (DMF), N' -dimethylacetamide (DMAc), dimethyl sulfoxide (DMSO), N-methylpyrrolidone (NMP), tetrahydrofuran, acetone, chloroform, toluene and xylene.
Preferably, the 3D micro texture structure is selected from a wave ridge structure, a micro-bump structure, a micro-well array structure, a cross-shaped structure or a micro-column array structure.
The invention also provides a super-hydrophobic film with a 3D micro texture structure on the surface, which is prepared by etching the coating machine substrate by using the femtosecond laser.
The invention also provides application of the super-hydrophobic film with the surface having the 3D micro texture structure in membrane distillation materials, glass curtain walls, field photoelectric instruments or precision instruments.
The invention also provides a processing device for preparing the super-hydrophobic film by using the femtosecond laser etching coating machine base material, which is formed by sequentially connecting a laser loading system, a material clamping system and a monitoring system, wherein:
the laser loading system consists of a femtosecond laser, a converter, a small hole, a variable attenuator, a beam splitter, a controllable optical switch, a reflector and a microscope objective, wherein the femtosecond laser output by the femtosecond laser passes through the controllable optical switch and is guided into the microscope objective by the reflector for focusing;
the material clamping system consists of a three-dimensional precision moving platform, a sample table and a computer, the coating machine base material can be fixed on the three-dimensional precision moving platform, and the control computer is connected with the three-dimensional precision moving platform;
the monitoring system consists of a CCD camera and can realize real-time monitoring on the machining process.
Preferably, the numerical aperture of the microscope objective is 0.15-0.95.
Compared with the prior art, the invention has the beneficial effects that:
(1) the method for preparing the micro-nano substrate by using the femtosecond laser etching coating machine substrate has simple process, does not use any chemical reagent or solvent in the preparation process, and is environment-friendly and nontoxic. The material has strong selectivity, a large processing size range and high precision, meets 3D micro texture structures of various requirements, has a stable micro-nano structure of the micro-nano base material and high reusability, and can greatly reduce the cost.
(2) The processing device for preparing the super-hydrophobic film by using the femtosecond laser etching coating machine substrate has strong operability and high speed.
(3) The super-hydrophobic film prepared by the invention has a controllable 3D micro texture structure, and the hydrophobicity of the film is greatly improved.
The above-described and other features, aspects, and advantages of the present application will become more apparent with reference to the following detailed description.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic structural diagram of a processing device for preparing a super-hydrophobic film by using a femtosecond laser etching coating machine substrate; wherein: the system comprises a computer 1, a CCD (charge coupled device) 2 camera, a reflector 3, a beam splitter 4, a variable attenuator 5, a controllable optical switch 6, a pinhole 7, a microscope objective 8, a three-dimensional precision moving platform 9, a femtosecond 10, a femtosecond 11, a femtosecond 12, a sample 13 and a microscopic texture structure 14-3D.
FIG. 2 is a 3D micro texture structure of different shapes of the surface of the super-hydrophobic film.
Detailed Description
The present invention will be described in detail with reference to examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be apparent to those skilled in the art that several modifications and improvements can be made without departing from the inventive concept. All falling within the scope of the present invention.
Referring to fig. 1, the processing device for preparing the super-hydrophobic film by using the femtosecond laser etching coater substrate is formed by sequentially connecting a laser loading system, a material clamping system and a monitoring system, wherein:
the laser loading system consists of a femtosecond laser 10, a converter 12, an aperture 7, a variable attenuator 5, a beam splitter 4, a controllable optical switch 6, a reflector 3 and a microscope objective 8, wherein the femtosecond laser 11 output by the femtosecond laser sequentially passes through the converter 12, the aperture 7, the variable attenuator 5 and the beam splitter 4, and the controllable optical switch 6 is adjusted to be guided into the microscope objective 8 by the reflector 3 for focusing; wherein the numerical aperture of the microscope objective 8 can be set to 0.15-0.95;
the material clamping system consists of a three-dimensional precision moving platform 9, a sample table 13 and a computer 1, the base material of the coating machine can be fixed on the three-dimensional precision moving platform 9, and the control computer 1 is connected with the three-dimensional precision moving platform 9;
the monitoring system is composed of a CCD camera 2 and can realize real-time monitoring on the processing process.
When the super-hydrophobic film is prepared by etching the base material of the coating machine by using the femtosecond laser, the femtosecond laser 11 (the parameters of the laser beam can be set as follows: the pulse width is 30fs, the wavelength is 800nm, the pulse frequency is 1kHz, the laser single pulse energy is 3.5 muJ, and the laser average power is 3.5mw) output by the femtosecond laser 10 enters the microscope objective 8 with the numerical aperture of 0.5 through the controllable optical switch 6 and the beam splitter 4 and is focused on the surface of the hard base material of the coating machine. The hard base material is fixed on the sample table, the movement of the hard base material is realized through a three-dimensional precision moving platform 9 controlled by a computer 1, the hard base material moves according to a processing track required by manufacturing a 3D micro texture structure and completes micro-nano base material processing, and the whole processing process is monitored in real time through a CCD camera 2.
Example 1
The processing device shown in fig. 1 is used for preparing the super-hydrophobic PVDF film with the 3D micro-texture structure, and the steps are as follows: the titanium gem femtosecond laser outputs femtosecond laser, the pulse width of which is 35fs, the wavelength is 800nm, the repetition frequency is 1kHz, the average laser power is 4mw, a microscope objective with the numerical aperture of 0.5 and the magnification of 50 times is focused on the surface of a quartz glass material with the size of 100mm multiplied by 100mm, the diameter of a focusing light spot is about 1.5 mu m, a sample is moved by a three-dimensional precise moving platform controlled by a computer, the moving speed is 200 mu m/s, and micro-nano substrate processing is carried out according to the processing track shown in figure 2 b.
Before film preparation, NMP is heated to 60 ℃, then dry PVDF powder (15 wt%) is slowly added into the solution and stirred for 6 hours to dissolve the polymer, and the dissolved PVDF solution is subjected to ultrasonic treatment for one hour to remove redundant bubbles. And (3) pouring the PVDF solution onto the micro-nano base material, wherein the pouring thickness is 400 mu m, and the area of the casting film is about 80mm multiplied by 80 mm. The prepared membrane is soaked in a solvent-free coagulation bath (water or ethanol) for 24 hours, then soaked in an ethanol bath for 6 hours, and then soaked in clear water at room temperature for 18 hours. And after curing, air-drying overnight, and peeling the dried film from the micro-nano substrate to obtain the super-hydrophobic PVDF film with the 3D micro texture structure.
Tests show that compared with a commercial PVDF film, the super-hydrophobic PVDF film with the 3D micro-texture structure has the roughness as high as 7 mu m, and simultaneously shows super-hydrophobic performance, the static water contact angle is as high as 159 degrees, and the dynamic sliding angle is as low as 4 degrees.
Example 2
The processing device shown in fig. 1 is used for preparing the super-hydrophobic polypropylene film with the 3D micro-texture structure, and the steps are as follows: the titanium gem femtosecond laser outputs femtosecond laser, the pulse width of which is 35fs, the wavelength is 400nm, the repetition frequency is 1kHz, the average laser power is 4mw, a microscope objective with the numerical aperture of 0.5 and the magnification of 50 times is focused on the surface of a quartz glass material with the size of 100mm multiplied by 100mm, the diameter of a focusing light spot is about 1.5 mu m, a sample is moved by a three-dimensional precise moving platform controlled by a computer, the moving speed is 200 mu m/s, and micro-nano substrate processing is carried out according to the processing track shown in figure 2 d.
The polypropylene slices or granules are heated and melted by a screw extruder, the formed melt is filtered by a metal screen and then pushed into a metering pump, the melt is accurately metered and pressurized by the metering pump to form the melt with stable flow, stable temperature, stable pressure and uniform distribution, and then the melt is pushed into a melt-blowing die head. And finally, mutually bonding and tangling under the action of the waste heat of the fibers and the heat of the drafting airflow, and solidifying to form the super-hydrophobic polypropylene film with the surface having the 3D micro texture structure.
Tests show that the super-hydrophobic polypropylene film with the 3D micro-texture structure shows super-hydrophobic performance, and the static water contact angle is as high as 150 degrees.
Example 3
The super-hydrophobic polystyrene film with the 3D micro-texture structure is prepared by adopting a processing device shown in figure 1, and the steps are as follows: the titanium gem femtosecond laser outputs femtosecond laser, the pulse width of which is 35fs, the wavelength is 400nm, the repetition frequency is 1kHz, the average laser power is 4mw, a microscope objective with the numerical aperture of 0.5 and the magnification of 50 times is focused on the surface of a quartz glass material with the size of 100mm multiplied by 100mm, the diameter of a focusing light spot is about 1.5 mu m, a sample is moved by a three-dimensional precise moving platform controlled by a computer, the moving speed is 200 mu m/s, and micro-nano substrate processing is carried out according to the processing track shown in figure 2 e.
Dissolving 1 g of polystyrene particles in 20ml of N, N-dimethylformamide to form a uniformly dissolved polystyrene solution, pouring the polystyrene solution on the micro-nano substrate, and drying for 24 hours in an environment with the relative humidity of 50% and the temperature of 60 ℃ to obtain the super-hydrophobic polystyrene film with the 3D micro-texture structure.
The test shows that the contact angle of the wettability of the film surface measured by a contact angle tester and water is 155 degrees, the rolling angle is 6 degrees, and the hydrophobic property is far larger than that of an untreated polystyrene film.
As can be seen from the above embodiments 1 to 3, the femtosecond laser is used to etch the hard substrate of the coating machine, so that the surface of the film generates the required 3D micro texture structure, compared with the hydrophobic film without the 3D micro texture structure on the surface, the liquid drop contact angle is increased, the surface hydrophobic effect is greatly improved, and the coating film can be used for film distillation materials, glass curtain walls, field photoelectric instruments or precision instruments, and is directly attached to the surfaces of various materials. The preparation method has the advantages of simple process, controllable film thickness, no use of any chemical reagent or solvent in the preparation process, environmental protection and no toxicity.
The present invention has been described in detail with reference to the embodiments, but the present invention is only a preferred embodiment of the present invention and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. A method for preparing a super-hydrophobic film by using a femtosecond laser etching coating machine substrate is characterized by comprising the following steps:
(1) fixing a coating machine base material on a three-dimensional precision moving platform, and focusing the coating machine base material on the surface of the coating machine base material through a microscope objective by adopting a femtosecond laser with the pulse width of 40-160 fs and the wavelength of 338-1100 nm;
(2) controlling the moving speed of the three-dimensional precise moving platform to be 0.2 mu m/s-0.5 mm/s, controlling the single pulse energy of the femtosecond laser to be 15 nJ-5 mJ, controlling the pulse repetition frequency to be 20 Hz-100 kHz and controlling the pulse width to be 40-140 fs, and focusing the femtosecond laser on the surface of the base material of the coating machine for etching processing;
(3) after the basic morphology of the micro-nano base material is processed in the step (2), adjusting the moving speed of the three-dimensional precision moving platform to be 0.2-100 um/s, repeating etching processing under the same condition of the femtosecond laser in the step (2), and controlling the precision and the surface roughness of the morphology to obtain the micro-nano base material of the coating machine;
(4) and (3) coating a solution of a hydrophobic polymer and an organic solvent or depositing a hydrophobic polymer melt on the surface of the micro-nano base material of the coating machine in the step (3) to form a film, and drying the film after curing to obtain the super-hydrophobic film with the 3D micro-texture structure on the surface.
2. The method for preparing the superhydrophobic film by femtosecond laser etching of the coater substrate according to claim 1, wherein the material of the coater substrate is selected from quartz glass, silicon or stainless steel.
3. The method for preparing a superhydrophobic film using a femtosecond laser etching coater substrate according to claim 1, wherein the numerical aperture (n.a) of the microscope objective is 0.15-0.95.
4. The method for preparing the super-hydrophobic film by using the femtosecond laser etching coater substrate according to claim 1, wherein the hydrophobic polymer is one or more selected from polyvinylidene fluoride (PVDF), vinylidene fluoride homopolymer, Polyethylene (PE), polypropylene (PP), Polystyrene (PS), polyvinyl chloride (PVC), polyether sulfone (PES) and Polyacrylonitrile (PAN).
5. The method for preparing a superhydrophobic film using a femtosecond laser etching coater substrate according to claim 1, wherein the organic solvent is one or a combination of two or more selected from N, N '-Dimethylformamide (DMF), N' -dimethylacetamide (DMAc), dimethyl sulfoxide (DMSO), N-methylpyrrolidone (NMP), tetrahydrofuran, acetone, chloroform, toluene, and xylene.
6. The method for preparing a superhydrophobic film using a femtosecond laser etching coater substrate according to claim 1, wherein the 3D micro texture structure is selected from a wave ridge structure, a micro-bump structure, a micro-well array structure, a field-shaped structure or a micro-column array structure.
7. A super-hydrophobic thin film obtained by the method for preparing a super-hydrophobic thin film using a femtosecond laser etching coater substrate according to any one of claims 1 to 6.
8. Use of the superhydrophobic film of claim 7 in membrane distillation materials, glass curtain walls, field optoelectronics or precision instruments.
9. The processing apparatus for preparing a superhydrophobic film using a femtosecond laser etching coater substrate according to any one of claims 1 to 6, wherein the processing apparatus is formed by sequentially connecting a laser loading system, a material clamping system and a monitoring system, wherein:
the laser loading system consists of a femtosecond laser, a beam splitter, a controllable optical switch, a variable attenuator, a reflector and a microscope objective, wherein the femtosecond laser output by the femtosecond laser passes through the controllable optical switch and is guided into the microscope objective by the reflector for focusing;
the material clamping system consists of a three-dimensional precision moving platform, a sample table and a computer, the coating machine base material can be fixed on the three-dimensional precision moving platform, and the control computer is connected with the three-dimensional precision moving platform;
the monitoring system consists of a CCD camera and can realize real-time monitoring on the machining process.
10. Machining device according to claim 9, characterized in that the numerical aperture of the microobjective is 0.15-0.95.
CN202110405561.XA 2021-04-15 2021-04-15 Method for preparing super-hydrophobic film by using femtosecond laser etching coating machine substrate Pending CN113182691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110405561.XA CN113182691A (en) 2021-04-15 2021-04-15 Method for preparing super-hydrophobic film by using femtosecond laser etching coating machine substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110405561.XA CN113182691A (en) 2021-04-15 2021-04-15 Method for preparing super-hydrophobic film by using femtosecond laser etching coating machine substrate

Publications (1)

Publication Number Publication Date
CN113182691A true CN113182691A (en) 2021-07-30

Family

ID=76977023

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110405561.XA Pending CN113182691A (en) 2021-04-15 2021-04-15 Method for preparing super-hydrophobic film by using femtosecond laser etching coating machine substrate

Country Status (1)

Country Link
CN (1) CN113182691A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114211121A (en) * 2021-11-23 2022-03-22 电子科技大学 Femtosecond laser ablation-surface film coating composite processing method for super-hydrophobic surface
CN114289875A (en) * 2021-12-03 2022-04-08 江苏大学 Wetting gradient structure laser surface micro-nano machining device and machining process
CN114311725A (en) * 2021-12-28 2022-04-12 山东大学 Water-based micro-droplet nondestructive operation device and preparation method
CN114635116A (en) * 2022-03-25 2022-06-17 山东科技大学 Corrosion-resistant antifriction anti-icing coating with multi-stage structure and preparation method thereof
CN114670430A (en) * 2022-03-29 2022-06-28 吉林大学 Method for carrying out wettability modification on polyarylether composite material
CN114836725A (en) * 2022-05-06 2022-08-02 上海海事大学 Low-temperature steel-oriented inorganic super-hydrophobic anti-icing coating structure and preparation method thereof
CN115008018A (en) * 2022-04-28 2022-09-06 西安交通大学 Method for preparing durable super-hydrophobic surface through femtosecond laser composite rare earth nano modification
CN115895150A (en) * 2022-11-29 2023-04-04 天府兴隆湖实验室 Self-cleaning adjustable thermal management film
CN116265596A (en) * 2021-12-17 2023-06-20 中国科学院长春光学精密机械与物理研究所 Method for improving corrosion resistance of aluminum alloy by using ultrafast laser and corrosion-resistant aluminum alloy

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1706881A (en) * 2004-06-04 2005-12-14 中国科学院化学研究所 Hydrophobic composite polymer film in micron and nanometer structure and its prepn
CN101311358A (en) * 2008-03-28 2008-11-26 西安交通大学 Process for preparing zinc oxide nanometer wire array by femtosecond laser and device thereof
CN101329508A (en) * 2008-07-25 2008-12-24 西安交通大学 Method for preparing micro-nano stamping stencil by femtosecond laser preparing
WO2016015389A1 (en) * 2014-08-01 2016-02-04 南方科技大学 Femtosecond laser two-photon polymerization micro/nanoscale machining system and method
CN106009014A (en) * 2016-07-04 2016-10-12 杨得全 Method for producing super-hydrophobic polytetrafluoroethylene films through glass template process
CN109954966A (en) * 2019-03-28 2019-07-02 大族激光科技产业集团股份有限公司 The method for carrying out Treatment of Metal Surface by femtosecond laser
CN110746624A (en) * 2019-11-18 2020-02-04 大连理工大学 PDMS (polydimethylsiloxane) super-hydrophobic surface preparation method based on template method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1706881A (en) * 2004-06-04 2005-12-14 中国科学院化学研究所 Hydrophobic composite polymer film in micron and nanometer structure and its prepn
CN101311358A (en) * 2008-03-28 2008-11-26 西安交通大学 Process for preparing zinc oxide nanometer wire array by femtosecond laser and device thereof
CN101329508A (en) * 2008-07-25 2008-12-24 西安交通大学 Method for preparing micro-nano stamping stencil by femtosecond laser preparing
WO2016015389A1 (en) * 2014-08-01 2016-02-04 南方科技大学 Femtosecond laser two-photon polymerization micro/nanoscale machining system and method
CN106009014A (en) * 2016-07-04 2016-10-12 杨得全 Method for producing super-hydrophobic polytetrafluoroethylene films through glass template process
CN109954966A (en) * 2019-03-28 2019-07-02 大族激光科技产业集团股份有限公司 The method for carrying out Treatment of Metal Surface by femtosecond laser
CN110746624A (en) * 2019-11-18 2020-02-04 大连理工大学 PDMS (polydimethylsiloxane) super-hydrophobic surface preparation method based on template method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114211121A (en) * 2021-11-23 2022-03-22 电子科技大学 Femtosecond laser ablation-surface film coating composite processing method for super-hydrophobic surface
CN114289875A (en) * 2021-12-03 2022-04-08 江苏大学 Wetting gradient structure laser surface micro-nano machining device and machining process
CN114289875B (en) * 2021-12-03 2024-03-19 江苏大学 Micro-nano processing device and processing technology for laser surface with wetting gradient structure
CN116265596A (en) * 2021-12-17 2023-06-20 中国科学院长春光学精密机械与物理研究所 Method for improving corrosion resistance of aluminum alloy by using ultrafast laser and corrosion-resistant aluminum alloy
CN116265596B (en) * 2021-12-17 2023-10-31 中国科学院长春光学精密机械与物理研究所 Method for improving corrosion resistance of aluminum alloy by using ultrafast laser and corrosion-resistant aluminum alloy
CN114311725A (en) * 2021-12-28 2022-04-12 山东大学 Water-based micro-droplet nondestructive operation device and preparation method
CN114635116A (en) * 2022-03-25 2022-06-17 山东科技大学 Corrosion-resistant antifriction anti-icing coating with multi-stage structure and preparation method thereof
CN114670430B (en) * 2022-03-29 2023-05-26 吉林大学 Method for wettability modification of polyarylether composite material
CN114670430A (en) * 2022-03-29 2022-06-28 吉林大学 Method for carrying out wettability modification on polyarylether composite material
CN115008018A (en) * 2022-04-28 2022-09-06 西安交通大学 Method for preparing durable super-hydrophobic surface through femtosecond laser composite rare earth nano modification
CN114836725B (en) * 2022-05-06 2023-10-13 上海海事大学 Inorganic super-hydrophobic anti-icing coating structure for low-temperature steel and preparation method thereof
CN114836725A (en) * 2022-05-06 2022-08-02 上海海事大学 Low-temperature steel-oriented inorganic super-hydrophobic anti-icing coating structure and preparation method thereof
CN115895150A (en) * 2022-11-29 2023-04-04 天府兴隆湖实验室 Self-cleaning adjustable thermal management film

Similar Documents

Publication Publication Date Title
CN113182691A (en) Method for preparing super-hydrophobic film by using femtosecond laser etching coating machine substrate
Varughese et al. Durability of submerged hydrophobic surfaces
Gong et al. Thermal stability of micro–nano structures and superhydrophobicity of polytetrafluoroethylene films formed by hot embossing via a picosecond laser ablated template
CN104907701A (en) Method for manufacturing stainless steel super-hydrophobic self-cleaning surface through ultra-fast lasers
WO2021083162A1 (en) Polymer-based film, preparation method therefor, and use thereof
CN111266016A (en) Preparation method of separation membrane with adjustable and controllable pore diameter and separation membrane prepared by preparation method
Ngo et al. Transparency and superhydrophobicity of cone-shaped micropillar array textured polydimethylsiloxane
US20130066045A1 (en) Ph-sensitive sacrificial materials for the microfabrication of structures
CN104907697B (en) A kind of method that utilization ultrafast laser prepares titanium alloy super-hydrophobic frost resistance surface
CN102179188A (en) Super hydrophobic modification method for polyvinylidene fluoride hydrophobic membranes
CN104911599A (en) Method for preparation of aluminium alloy superhydrophobic self-cleaning surface by use of ultrafast laser
Zhang et al. A rapid and efficient strategy for creating super-hydrophobic coatings on various material substrates
CN112642300B (en) Oil-water separation membrane and preparation method and application thereof
Koroleva et al. Microreplication of laser-fabricated surface and three-dimensional structures
Peethan et al. Laser‐Assisted Tailoring of Surface Wettability‐Fundamentals and Applications: A Critical Review
WO2019077604A1 (en) Flexible micro-patterned films system and method for manufacture thereof
CN109676245A (en) A method of super hydrophilic glass surface is prepared using pulse laser
Vargas-Alfredo et al. Fabrication of 3D printed objects with controlled surface chemistry and topography
CN107970789A (en) Hydrophobic membrane with micro-and nano-structural surface functional layer and preparation method thereof
CN108993169A (en) A kind of polyvinylidene fluoride microporous film and preparation method thereof
CN103861473A (en) Preparation method for three-dimensional nano fiber-based cellulose super-hydrophilic composite ultrafiltration membrane
CN103060773B (en) A kind of preparation method of superhydrophobic surface material
CN111944177A (en) Polymer ultrathin film forming system and polymer ultrathin film
CN106861448A (en) A kind of preparation method of ethylene-vinyl alcohol copolymer highly-hydrophilic milipore filter
CN106310968A (en) Hollow fiber membrane of large-flux symmetrical-structure polymer and preparation method of hollow fiber membrane

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210730