CN114261083A - Preparation method of super-hydrophobic antifriction surface of polyethylene nylon co-extruded film - Google Patents
Preparation method of super-hydrophobic antifriction surface of polyethylene nylon co-extruded film Download PDFInfo
- Publication number
- CN114261083A CN114261083A CN202111577111.5A CN202111577111A CN114261083A CN 114261083 A CN114261083 A CN 114261083A CN 202111577111 A CN202111577111 A CN 202111577111A CN 114261083 A CN114261083 A CN 114261083A
- Authority
- CN
- China
- Prior art keywords
- film
- stainless steel
- polyethylene nylon
- steel mesh
- super
- 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
Links
- -1 polyethylene Polymers 0.000 title claims abstract description 87
- 239000004677 Nylon Substances 0.000 title claims abstract description 84
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 84
- 229920001778 nylon Polymers 0.000 title claims abstract description 84
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 84
- 230000003075 superhydrophobic effect Effects 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 64
- 239000010935 stainless steel Substances 0.000 claims abstract description 64
- 238000001125 extrusion Methods 0.000 claims abstract description 33
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 31
- 238000001035 drying Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 34
- 230000008569 process Effects 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 19
- 238000004049 embossing Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 10
- 206010040844 Skin exfoliation Diseases 0.000 description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000002238 carbon nanotube film Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 238000009455 aseptic packaging Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000010041 electrostatic spinning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a preparation method of a super-hydrophobic antifriction surface of a polyethylene nylon co-extrusion film, belonging to the technical field of preparation of super-hydrophobic antifriction surfaces. According to the invention, a film is pressurized through a stainless steel mesh with a micron-scale aperture under a high-temperature environment to form a first layer of block-shaped microstructure, and a second layer of microstructure is formed through the stretching effect of the stainless steel mesh on the film in the subsequent stainless steel mesh stripping process, so that the super-hydrophobic film with a multi-layer microstructure surface is obtained. The invention has the advantages that the polyethylene nylon co-extruded film obtained by the preparation method has the characteristics of super hydrophobicity, low adhesion, anti-icing and friction reduction, and has the advantages of low cost, simple operation, environmental friendliness, no pollution and easy large-scale industrial mass production.
Description
Technical Field
The invention relates to the technical field of preparation of super-hydrophobic antifriction surfaces, in particular to a preparation method for realizing a super-hydrophobic antifriction surface of a polyethylene nylon co-extruded film through hot embossing stripping.
Background
The super-hydrophobic material refers to a material with a static wetting contact angle of more than 150 degrees on the surface of the material by water drops; the super-hydrophobic material attracts more and more attention due to the functions of self-cleaning, anti-icing, resistance reduction, friction reduction and the like; the existing super-hydrophobic surface processing method mainly comprises a template method, a photoetching method, a plasma treatment method, an electrochemical deposition method, a sol-gel method, an electrochemical etching method, a self-assembly method, an electrostatic spinning method and the like, and the technical routes of the methods for obtaining the super-hydrophobic surface can be summarized as constructing a microstructure on the surface of a material and modifying the surface of the material by adopting low-surface-energy chemical substances; the method for obtaining the super-hydrophobic material by modifying the surface of the material based on the low-surface-energy chemical substance mostly adopts fluorine-containing polymer, has high price and high material cost, is difficult to be applied to industrial mass production for preparing the super-hydrophobic material on a large scale, and in addition, the technical route also relates to the use of toxic and harmful chemical reagents and has certain harm to the environment; most methods for obtaining the super-hydrophobic material based on the material surface construction micro-structure technical route have complicated preparation procedures, severe reaction conditions and expensive equipment, and have certain limitations on large-scale preparation of the super-hydrophobic material;
chinese patent CN 113071038A discloses a preparation method of a super-hydrophobic carbon nanotube film, which uses carbon nanotube material to deposit and form a film matrix, and a layer of polytetrafluoroethylene is spin-coated on the surface of the carbon nanotube film; the carbon nanotube material used in the method and the equipment used in the deposition process are expensive, and are not beneficial to large-scale production; the surface of the nanotube film needs polytetrafluoroethylene to be spin-coated, the acetone and toluene are bath-washed to dissolve the polystyrene base material, a plurality of toxic and harmful chemical reagents are used in the process, the process is complex, and the procedure is complicated;
chinese patent CN 110407482B discloses a method for preparing SiO2The method for preparing the super-hydrophobic coating on the surface of the glass uses various toxic and harmful chemical reagents such as concentrated sulfuric acid, hydrogen peroxide, ammonia water and the like in the process of preparing the super-hydrophobic coating, and the method has complicated procedures and needs more chemical reagentsRepeating related process steps for a plurality of times;
chinese patent CN 113373427A discloses a method for preparing an inorganic transparent super-hydrophobic film by adopting a PECVD technology, the method uses expensive chemical vapor deposition equipment and needs to cross prepare a micro-nano structure for many times, and the procedure is complicated;
the polyethylene nylon co-extrusion film is a common high-molecular composite film material for packaging in the current market, is a film formed by organically melting polyethylene and nylon materials and then cooling and compounding the polyethylene and nylon materials in layers, can achieve the effects of high barrier to oxygen, moisture, carbon dioxide and the like, is oil-resistant, moisture-resistant and low-temperature freezing-resistant, and is commonly used for vacuum packaging, aseptic packaging and inflation packaging;
based on the problems, the method which is low in cost, rapid, environment-friendly and simple in process is developed to endow the polyethylene nylon co-extruded film with the super-hydrophobic characteristic, so that the polyethylene nylon co-extruded film has a wide application prospect in the aspects of miniature aircraft skin and wing drag reduction and friction reduction, photovoltaic glass plates, display screens, windshields and building curtain wall glass self-cleaning and antifouling.
Disclosure of Invention
The invention provides a preparation method of a super-hydrophobic antifriction surface of a polyethylene nylon co-extruded film, which aims to solve the problem that the super-hydrophobic surface of the existing high polymer material is difficult to industrially prepare on a large scale.
The technical scheme of the invention is as follows: comprises the following steps:
cutting a stainless steel mesh with micron-level meshes and a polyethylene nylon co-extrusion film to a proper size, and carrying out ultrasonic washing and drying to obtain a stainless steel mesh with a clean surface and a polyethylene nylon co-extrusion film;
secondly, placing the polyethylene nylon co-extruded film in the middle of the folded stainless steel mesh, and horizontally placing the whole polyethylene nylon co-extruded film in the middle of the two alumina ceramic plates;
thirdly, applying a pressure of 0.8-1.2 MPa in the vertical direction to the alumina ceramic plate by adopting a pressurizing device, heating for 3-4 minutes in an environment of 115-130 ℃, immersing a stainless steel mesh into the polyethylene nylon co-extrusion film in a molten state under the pressure action of the alumina ceramic plate, and carrying out hot pressing on the surface of the polyethylene nylon co-extrusion film by using micron-level meshes of the stainless steel mesh to form a first-level blocky microstructure;
and step four, unloading the alumina ceramic plate, after cooling to room temperature, stripping the stainless steel mesh from the surface of the polyethylene nylon co-extruded film, driving the film attached to the surface of the stainless steel mesh to be separated along the direction vertical to the surface of the film by the steel wires of the stainless steel mesh until the film is broken, forming a second-level villous microstructure on the surface of the film, and finally obtaining the polyethylene nylon co-extruded super-hydrophobic film.
The stainless steel net adopts 480-520 meshes.
In the third step of the invention, a drying oven is adopted for heating.
The contact angle of the polyethylene nylon co-extruded super-hydrophobic film obtained in the fourth step of the invention is 151.4-156.7 degrees.
The invention has the beneficial effects that: under the heating environment, the surface of the polyethylene nylon co-extrusion film is changed from a solid state to a molten state, the aluminum oxide ceramic plate is pressed to apply pressure on the stainless steel mesh to press the stainless steel mesh into the polyethylene nylon co-extrusion film, a first layer of micron-sized block-shaped microstructure is formed on the surface of the polyethylene nylon co-extrusion film, the stainless steel mesh is peeled off after the polyethylene nylon co-extrusion film is cooled to room temperature, a second layer of villous microstructure is formed on the basis of the block-shaped microstructure, finally, the surface of the polyethylene nylon co-extrusion film has a multi-layer microstructure, a super-hydrophobic effect is generated, and a super-hydrophobic surface of the low-adhesion multi-layer microstructure is generated by utilizing the thermoplasticity and tensile properties of the polyethylene nylon co-extrusion film. Compared with the prior art, the method has the advantages of low cost, simple operation, environmental friendliness, no pollution and easiness in large-scale industrial mass production. The method has wide application prospect in the fields of photovoltaic power generation solar panel self-cleaning, electric equipment water mist and ice prevention, micro aircraft surface resistance reduction and the like.
Drawings
FIG. 1 is a schematic view of the hot embossing process using stainless steel mesh according to the present invention;
FIG. 2 is a schematic view showing a peeling process of a stainless steel net after hot embossing according to the present invention;
FIG. 3 is a scanning electron microscope image of a multilayer microstructure of a polyethylene nylon co-extruded film after peeling a stainless steel mesh according to the present invention;
FIG. 4 is a cross-sectional microstructure image of the peeled single-layer stainless steel mesh polyethylene nylon co-extruded film of the present invention cooled to room temperature;
FIG. 5 is a schematic view of the contact angle measured on the surface of the polyethylene nylon co-extruded film after the film is heated at 115 ℃ for 4 minutes and is processed by a hot embossing stripping method of a 500-mesh stainless steel net under the condition of applying 1.0MPa pressure.
Detailed Description
Example 1
Comprises the following steps:
cutting a stainless steel mesh with 480 meshes and a polyethylene nylon co-extrusion film to a proper size, and carrying out ultrasonic washing and drying to obtain a stainless steel mesh and a polyethylene nylon co-extrusion film with clean surfaces;
secondly, placing the polyethylene nylon co-extruded film in the middle of the folded stainless steel mesh, and horizontally placing the whole polyethylene nylon co-extruded film in the middle of the two alumina ceramic plates;
thirdly, applying a pressure of 0.8MPa in the vertical direction to the alumina ceramic plate by adopting a pressurizing device, placing the alumina ceramic plate in a drying box, heating the alumina ceramic plate at 115 ℃ for 4 minutes, immersing a stainless steel mesh into the polyethylene nylon co-extrusion film in a molten state under the pressure action of the alumina ceramic plate, and hot-pressing the surface of the polyethylene nylon co-extrusion film by using micron-level meshes of the stainless steel mesh to form a first-level blocky microstructure;
and step four, unloading the alumina ceramic plate, after cooling to room temperature, stripping the stainless steel mesh from the surface of the polyethylene nylon co-extruded film, driving the film attached to the surface of the stainless steel mesh to be separated along the direction vertical to the surface of the film by the steel wires of the stainless steel mesh until the film is broken, forming a second-level villous microstructure on the surface of the film, and finally obtaining the polyethylene nylon co-extruded super-hydrophobic film.
Example 2
Comprises the following steps:
cutting a stainless steel mesh with 500 meshes and a polyethylene nylon co-extrusion film to a proper size, and carrying out ultrasonic washing and drying to obtain a stainless steel mesh and polyethylene nylon co-extrusion film with clean surfaces;
secondly, placing the polyethylene nylon co-extruded film in the middle of the folded stainless steel mesh, and horizontally placing the whole polyethylene nylon co-extruded film in the middle of the two alumina ceramic plates;
thirdly, applying pressure of 1.0MPa in the vertical direction to the alumina ceramic plate by adopting a pressurizing device, placing the alumina ceramic plate in a drying box, heating the alumina ceramic plate at the temperature of 123 ℃ for 3.5 minutes, immersing a stainless steel mesh into the polyethylene nylon co-extrusion film in a molten state under the pressure action of the alumina ceramic plate, and carrying out hot pressing on the surface of the polyethylene nylon co-extrusion film by using micron-level meshes of the stainless steel mesh to form a first-level blocky microstructure;
and step four, unloading the alumina ceramic plate, after cooling to room temperature, stripping the stainless steel mesh from the surface of the polyethylene nylon co-extruded film, driving the film attached to the surface of the stainless steel mesh to be separated along the direction vertical to the surface of the film by the steel wires of the stainless steel mesh until the film is broken, forming a second-level villous microstructure on the surface of the film, and finally obtaining the polyethylene nylon co-extruded super-hydrophobic film.
Example 3
Comprises the following steps:
cutting a stainless steel mesh with 520 meshes and a polyethylene nylon co-extrusion film to a proper size, and carrying out ultrasonic washing and drying to obtain a stainless steel mesh and polyethylene nylon co-extrusion film with clean surfaces;
secondly, placing the polyethylene nylon co-extruded film in the middle of the folded stainless steel mesh, and horizontally placing the whole polyethylene nylon co-extruded film in the middle of the two alumina ceramic plates;
thirdly, applying a pressure of 1.2MPa in the vertical direction to the alumina ceramic plate by adopting a pressurizing device, placing the alumina ceramic plate in a drying box, heating the alumina ceramic plate at 130 ℃ for 3 minutes, immersing a stainless steel mesh into the polyethylene nylon co-extrusion film in a molten state under the pressure action of the alumina ceramic plate, and hot-pressing the surface of the polyethylene nylon co-extrusion film by using micron-level meshes of the stainless steel mesh to form a first-level blocky microstructure;
and step four, unloading the alumina ceramic plate, after cooling to room temperature, stripping the stainless steel mesh from the surface of the polyethylene nylon co-extruded film, driving the film attached to the surface of the stainless steel mesh to be separated along the direction vertical to the surface of the film by the steel wires of the stainless steel mesh until the film is broken, forming a second-level villous microstructure on the surface of the film, and finally obtaining the polyethylene nylon co-extruded super-hydrophobic film.
The invention is further illustrated below by means of experimental examples.
Examples of the experiments
Taking the example that a polyethylene nylon co-extrusion film is heated for 4 minutes at 115 ℃ by adopting a stainless steel mesh with 500 meshes and 1.0MPa of pressure is applied, hot embossing is carried out on the polyethylene nylon co-extrusion film, and the upper layer stainless steel mesh and the lower layer stainless steel mesh are peeled off after the polyethylene nylon co-extrusion film is cooled to a room temperature environment;
cutting a polyethylene nylon co-extrusion film 2 and a stainless steel mesh 3 with the attached drawing 1, enabling the folded stainless steel mesh 3 to completely cover the polyethylene nylon co-extrusion film 2, enabling the upper surface and the lower surface of the folded stainless steel mesh 3 to be tightly attached to an alumina ceramic plate 1 and an alumina ceramic plate 4 respectively, horizontally placing, applying a vertically downward pressure of 1.0MPa to the alumina ceramic plate 1 by using a screw pressurizing device and keeping a loading state, and then integrally placing the screw pressurizing device in a 115 ℃ drying box and keeping for 4 minutes;
and (3) combining the attached drawing 2, taking out the screw pressurizing device and unloading after the drying box is cooled to room temperature, then taking down the alumina ceramic plate 1 and the alumina ceramic plate 2, slowly tearing the stainless steel net 3 along the corner and keeping the pulling force vertical to the polyethylene nylon co-extruded film 2, and then repeating the step to peel off the stainless steel net 3 on the other side of the polyethylene nylon co-extruded film 2.
With reference to the attached figure 3, a multi-layer microstructure composed of a blocky microstructure and a villous microstructure is formed on the surface of the polyethylene nylon co-extruded film after hot embossing stripping is completed;
FIG. 4 is a scanning electron microscope image of the cross section of the polyethylene nylon co-extruded film peeled off one layer after hot embossing, which shows that the stainless steel mesh is immersed into the molten polyethylene nylon co-extruded film under the pressure during the hot embossing process, and the immersion depth is half of the thickness of the polyethylene nylon co-extruded film;
FIG. 5 shows that the contact angle of the polyethylene nylon co-extruded film obtained by hot embossing peeling treatment with a contact angle measuring instrument is measured under the conditions that the polyethylene nylon co-extruded film is heated for 4min at 115 ℃ by a stainless steel mesh of 500 meshes and the pressure is 1.0MPa, and the contact angle is 156.1 degrees.
Table 1 shows the data of multiple contact angle measurements of a polyethylene nylon co-extruded film obtained by heating the polyethylene nylon co-extruded film with a 500-mesh stainless steel net at 115 ℃ for 4min and carrying out hot embossing peeling treatment on the polyethylene nylon co-extruded film under the pressure of 1.0MPa by using a contact angle measuring instrument and an original polyethylene nylon co-extruded film which is not treated;
TABLE 1
From table 1, it can be seen that the hot embossing peeling method of the present invention can effectively make the polyethylene nylon co-extruded film achieve super-hydrophobic characteristics.
The above description is only exemplary of the present invention and should not be taken as limiting, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A preparation method of a super-hydrophobic antifriction surface of a polyethylene nylon co-extruded film is characterized by comprising the following steps: comprises the following steps:
cutting a stainless steel mesh with micron-level meshes and a polyethylene nylon co-extrusion film to a proper size, and carrying out ultrasonic washing and drying to obtain a stainless steel mesh with a clean surface and a polyethylene nylon co-extrusion film;
secondly, placing the polyethylene nylon co-extruded film in the middle of the folded stainless steel mesh, and horizontally placing the whole polyethylene nylon co-extruded film in the middle of the two alumina ceramic plates;
thirdly, applying a pressure of 0.8-1.2 MPa in the vertical direction to the alumina ceramic plate by adopting a pressurizing device, heating for 3-4 minutes in an environment of 115-130 ℃, immersing a stainless steel mesh into the polyethylene nylon co-extrusion film in a molten state under the pressure action of the alumina ceramic plate, and carrying out hot pressing on the surface of the polyethylene nylon co-extrusion film by using micron-level meshes of the stainless steel mesh to form a first-level blocky microstructure;
and step four, unloading the alumina ceramic plate, after cooling to room temperature, stripping the stainless steel mesh from the surface of the polyethylene nylon co-extruded film, driving the film attached to the surface of the stainless steel mesh to be separated along the direction vertical to the surface of the film by the steel wires of the stainless steel mesh until the film is broken, forming a second-level villous microstructure on the surface of the film, and finally obtaining the polyethylene nylon co-extruded super-hydrophobic film.
2. The preparation method of the super-hydrophobic antifriction surface of the polyethylene nylon co-extruded film according to claim 1 is characterized in that: the stainless steel net adopts 480-520 meshes.
3. The preparation method of the super-hydrophobic antifriction surface of the polyethylene nylon co-extruded film according to claim 1 is characterized in that: and in the third step, a drying box is adopted for heating.
4. The preparation method of the super-hydrophobic antifriction surface of the polyethylene nylon co-extruded film according to claim 1 is characterized in that: and the contact angle of the polyethylene nylon co-extruded super-hydrophobic film obtained in the fourth step is 151.4-156.7 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111577111.5A CN114261083A (en) | 2021-12-20 | 2021-12-20 | Preparation method of super-hydrophobic antifriction surface of polyethylene nylon co-extruded film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111577111.5A CN114261083A (en) | 2021-12-20 | 2021-12-20 | Preparation method of super-hydrophobic antifriction surface of polyethylene nylon co-extruded film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114261083A true CN114261083A (en) | 2022-04-01 |
Family
ID=80828557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111577111.5A Pending CN114261083A (en) | 2021-12-20 | 2021-12-20 | Preparation method of super-hydrophobic antifriction surface of polyethylene nylon co-extruded film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114261083A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851069A (en) * | 2010-02-11 | 2010-10-06 | 浙江工业大学 | Method for preparing polymer super-hydrophobic surface by using screen template method |
| CN101879781A (en) * | 2010-06-21 | 2010-11-10 | 浙江工业大学 | Method for preparing polymer superhydrophobic surface by taking steel roller as template |
| US20160160436A1 (en) * | 2011-02-28 | 2016-06-09 | Research Foundation Of The City University Of New York | Flexible fabric having superhydrophobic surface |
| CN108545694A (en) * | 2018-06-21 | 2018-09-18 | 西安建筑科技大学 | A kind of based superhydrophobic thin films and preparation method thereof with unusual micro-structure |
-
2021
- 2021-12-20 CN CN202111577111.5A patent/CN114261083A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851069A (en) * | 2010-02-11 | 2010-10-06 | 浙江工业大学 | Method for preparing polymer super-hydrophobic surface by using screen template method |
| CN101879781A (en) * | 2010-06-21 | 2010-11-10 | 浙江工业大学 | Method for preparing polymer superhydrophobic surface by taking steel roller as template |
| US20160160436A1 (en) * | 2011-02-28 | 2016-06-09 | Research Foundation Of The City University Of New York | Flexible fabric having superhydrophobic surface |
| CN108545694A (en) * | 2018-06-21 | 2018-09-18 | 西安建筑科技大学 | A kind of based superhydrophobic thin films and preparation method thereof with unusual micro-structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kim et al. | Repeatable replication method with liquid infiltration to fabricate robust, flexible, and transparent, anti-reflective superhydrophobic polymer films on a large scale | |
| Zhou et al. | Flexible hydrophobic 2D Ti3C2Tx-based transparent conductive film with multifunctional self-cleaning, electromagnetic interference shielding and joule heating capacities | |
| CN105293427B (en) | Preparation method of super-hydrophobic surface based on limited local plating of meniscus | |
| CN105758562A (en) | Flexible pressure sensor and preparation method thereof | |
| CN102522145A (en) | Nanometer silver transparent electrode material and preparation method thereof | |
| CN106544655B (en) | A kind of preparation method of polyimide surface patterned conductive Ag films | |
| KR20130133207A (en) | Graphene film transfer method, and method for manufacturing transparent conductive film | |
| CN106251946B (en) | A kind of compound transparent electricity conductive film and preparation method thereof | |
| Kang et al. | Mechanical robustness of graphene on flexible transparent substrates | |
| TWI659832B (en) | Complex | |
| WO2018040954A1 (en) | Preparation of pet/nano silver wire transparent conductive film by illumination sintering | |
| CN108181363A (en) | A kind of flexible electrode based on dendritic nano-silver structure prepared using electrochemical deposition method | |
| CN108823615A (en) | High heat conducting nano copper-graphite film composite material preparation method | |
| CN110340532A (en) | A method of metallic copper super-hydrophobic surface is prepared using a step laser ablation | |
| JP2015086094A (en) | Production method of carbon nanotube sheet | |
| TWI725284B (en) | Polymer film laminated substrate and manufacturing method of flexible electronic device | |
| CN114261083A (en) | Preparation method of super-hydrophobic antifriction surface of polyethylene nylon co-extruded film | |
| CN108648853A (en) | The composite conductive structure and preparation method thereof of graphene attachment enhancing | |
| Wang et al. | Mechanically durable and amphiphobic rubber foam composites for strain/pressure sensors | |
| KR101505471B1 (en) | Transfer and adhesion technology of nano thin film | |
| CN107151337A (en) | A kind of liquid wetting surface preparation method that can be controllable | |
| Gao et al. | Ultrasound assisted large scale fabrication of superhydrophilic anodized SnOx films with highly uniformed nanoporous arrays | |
| CN106297964A (en) | A kind of compound transparent electricity conductive film and preparation method thereof | |
| KR101920145B1 (en) | Flexible substrate for flexible electronic device, method of fabricating flexible electronic device using the same, and flexible electronic device fabriacated by the method | |
| Goh et al. | Surface treatment of polyethylene terephthalate (PET) film for lamination of flexible photovoltaic devices |
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 |