CN106119842A - A kind of double-deck super hydrophobic material and preparation method thereof - Google Patents
A kind of double-deck super hydrophobic material and preparation method thereof Download PDFInfo
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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Abstract
The present invention is to provide a kind of double-deck super hydrophobic material and preparation method thereof.Alloy base material passes through sand papering and the oxide-film being immersed in ultrasonic cleaning removal surface in dehydrated alcohol and greasy dirt, it is thus achieved that A；According to 0.5～10mL/cm2Ratio A is dipped into equal-volume mixing 0.01mol/L stearic acid ethanol solution and 0.01mol/L nickel sulfate solution mixed solution in, 140 DEG C of hydro-thermals 7h；Take out after cooling and be dried, obtain B；According to 0.5～10mL/cm2Ratio B is dipped into equal-volume mixing 0.01～0.2mol/L stearic acid ethanol solution and 0.01～0.2mol/L cobalt sulfate solution mixed solution in, 90～130 DEG C of hydro-thermals 5～8h；Take out after cooling and be dried, obtain double-deck super hydrophobic material.This material and preparation method thereof can reach the super-hydrophobic film layer purpose allowing alloy have the corrosion resistance of long-time stability, soil resistance.
Description
Technical field
The present invention relates to a kind of metallic material surface treating method, specifically one and there is anti-fouling corrosion resistant effect
Double-deck super hydrophobic material and preparation method thereof.
Background technology
Super hydrophobic material is not easy the special wetting property of immersion liquid by its surface, can reduce substrate and corrosivity
The contact area of medium, it is achieved effective anti-fouling corrosion resistant purpose.Extensive concern by various circles of society.The definition of super hydrophobic material
For the drop static contact angle on its surface, more than 150 ° and drop is easy to the material from its surface landing.Show after deliberation
Two key factors prepared by super hydrophobic material are to have surface micro-roughened copper structure and relatively low surface energy respectively.Crystal structure
Material can have the noncrystal special nature not possessed by its distinctive architectural feature, has non-same to preparing super hydrophobic material
The meaning of I.
Compared with noncrystal, crystal structure and stable in properties, relatively low surface can effectively reduce the surface of substrate and open
Power and then the reduction liquid wellability on its surface, therefore crystal hydrophobic protective layer has more preferable antiseptic effect for substrate.
Common ceramic material, glass etc. are noncrystal does not possess crystal property due to it, it is difficult to as the ideal on constructing super-drainage surface
Material.
We are by finding for the research of substrate hydrophobic effect in alloy surface growth for crystal: micro-nano laminated structure
Surface is carried out excellent support thus realizes dropping the effect of low-surface-energy and then reaching super-hydrophobic effect, but be that this crystal exists
The growth of alloy surface can not reach fine and close completely；So in use, drop still can with substrate contact, thus by
Gradually corrode.Therefore to have more stability significant with the super hydrophobic material of compactness in development.
Summary of the invention
It is an object of the invention to provide a kind of anti-corrosion, antifouling double-deck super hydrophobic material with long-time stability.This
Bright purpose also resides in the preparation method providing a kind of double-deck super hydrophobic material.
The object of the present invention is achieved like this:
The double-deck super hydrophobic material of the present invention includes being grown in alloy substrates by the method for secondary hydro-thermal layer assembly
Ground floor there is the super-hydrophobic crystal of micro nano structure, in the described super-hydrophobic plane of crystal regrowth with micro nano structure
The second layer there is the super-hydrophobic plane of crystal of micro nano structure.
The double-deck super hydrophobic material of the present invention can also include:
The composition of the super-hydrophobic crystal that two-layer has micro nano structure is hard soap, and ground floor is micro-nano lamella
The network crystal structure built, the second layer is the micro-nano laminated structure of super-hydrophobic crystal.
The preparation method of the double-deck super hydrophobic material of the present invention is:
(1) alloy base material by sand papering and is immersed in the oxidation on ultrasonic cleaning removal surface in dehydrated alcohol
Film and greasy dirt, clean with deionized water, is dried, it is thus achieved that materials A；
(2) according to 0.5～10mL/cm2Ratio materials A is dipped into equal-volume mixing 0.01mol/L stearic acid second
In the mixed solution of alcoholic solution and 0.01mol/L nickel sulfate solution, 140 DEG C of hydro-thermals 7h；Take out after cooling and be dried, obtain material B；
(3) according to 0.5～10mL/cm2Ratio material B is dipped into the 0.01～0.2mol/L stearic of equal-volume mixing
In the mixed solution of acid ethanol solution and 0.01～0.2mol/L cobalt sulfate solution, 90～130 DEG C of hydro-thermals 5～8h；After cooling
Take out and be dried, obtain double-deck super hydrophobic material.
Described alloy base material is magnesium alloy, copper alloy or aluminium alloy.
The invention provides a kind of double-deck super hydrophobic material and preparation method thereof, by the method for secondary hydro-thermal layer assembly
In alloy substrates, first grow one layer of super-hydrophobic crystal with micro nano structure, the longer second layer of its surface regeneration also has micro-
The super-hydrophobic plane of crystal of nanostructured；Increase surface roughness by double-deck micro nano structure, increase hydrophobic crystalline surface
Compactness extent, reduction substrate and the contact area of liquid；The net that the super-hydrophobic crystal microstructure of the first floor is built with micro-nano lamella
Shape structure strengthens the adhesion of hydrophobic film layer and substrate, and surface is carried out by the super-hydrophobic crystal of the second layer by micro-nano flower-like structure
Excellent support thus realize dropping the effect of low-surface-energy and then reaching super-hydrophobic effect.Only need two steps that alloy surface is had
There is special wellability, by the reaction of different transition metal salts with long-chain fatty acid, use and change warming temperature gradient group layer by layer
Dress, strengthens the combination degree of super-hydrophobic film layer and substrate, the area that reduction wet gas, corrosive medium contact with alloy substrates
Thus reach the purpose with long-term chemical durability, corrosion resistance and antifouling property.
Technical key point includes:
The selection aspect of raw material, Environment pollute little, can effectively reduce material surface can long-chain fatty acid in hard
Fat acid, the nickel sulfate in transition metal salt strong with electrochemical response, corrosion resistance is strong and cobaltous sulfate are as reaction raw materials, permissible
Effectively preparation has the super-hydrophobic crystal structure materials of low-surface-energy.Two-layer micro nano structure is by mutually interting, inlaying complementation
Double-decker can increase hydrophobic material surface roughness and film layer compactness extent effectively at the bottom of protection group simultaneously.
The selection aspect of reaction condition, hydro-thermal reaction prepares first floor super-hydrophobic film layer for the first time, by hydro-thermal parameter and former
The selection of material, the super-hydrophobic crystal microstructure of the first floor strengthens hydrophobic film layer and substrate with the network structure that micro-nano lamella is built
Adhesion, this layer of hydrophobic crystalline has preferable consistency at substrate surface.
By hydro-thermal parameter and the selection of raw material, hydro-thermal achieves and grown micro-at the super-hydrophobic plane of crystal of the first floor for the second time
Nano flower-like structure crystal, second layer crystal layer has good surface support effect, thus realizes dropping the effect of low-surface-energy
And then reach super-hydrophobic effect, additionally, increase surface roughness by double-deck micro nano structure, increase, reduce substrate and liquid
The contact area of body.
The invention have the benefit that
1 super-hydrophobic crystal, as protecting film, not only has a super-hydrophobic ability, and stable in properties, it is tightly combined with substrate,
Significantly improve the corrosion resisting property of material.
2 bimorph crystal structural advantages are complementary, have synergism.
The first, bimorph crystal structure improves degree of roughness and the consistency of hydrophobic material.
The bilayer that bimorph crystal carries out inlaying with different appearance structure, insert, fill up etc. the combination present invention is super thin
Water surface has special double-deck micro nano structure, significantly improve degree of roughness, and quasi-complement single structure crystal is produced effectively
The raw unsound defect of structure.
The second, bimorph crystal structure main mechanism is different.
First floor Main Function is that the second layer mainly provides a supporting role raising hydrophobicity in order to improve compactness.
3rd, soak the identical time in the seawater, the double-deck super hydrophobic surface of the present invention and monolayer super hydrophobic surface and
It is the most slack-off that the Mg alloy surface of unmodified compares corrosion rate, and has the most anti-corrosion, antifouling, anti-ice, frost prevention, drag reduction
Performance.
Accompanying drawing explanation
Fig. 1 is the electron scanning figure on the double-deck multilevel hierarchy super-hydrophobic crystalline material surface prepared.
Fig. 2 is anti-soil photo and the contact angle test figure on the double-deck multilevel hierarchy super-hydrophobic crystalline material surface prepared.
Fig. 3 a to Fig. 3 b is untreated AZ31 magnesium alloy, super hydrophobic surface prepared by a step hydro-thermal, prepared by two step hydro-thermals
Super hydrophobic surface to be immersed in mass fraction be the Bode diagram of test after 3.5%NaCl solution 24h.
Detailed description of the invention
The present invention is described in detail in citing below.
Embodiment 1
The material of the present invention is the super-hydrophobic film being coated with the micro-nano multilevel hierarchy of two-layer in alloy substrates, described super-hydrophobic
The composition of film is hard soap；Above substrate, ground floor super-hydrophobic layer is the network crystal structure that micro-nano lamella is built,
The laminated structure of the micro-nano uneven distribution of the super-hydrophobic crystal of the second layer.
The preparation method of this material is:
(1) AZ31 magnesium alloy is selected by sand papering and to be immersed in ultrasonic cleaning removal alloy surface in dehydrated alcohol
Oxide-film and greasy dirt, with deionized water clean, be dried, it is thus achieved that materials A；
(2) according to 0.5-10mL/cm2Ratio that materials A is dipped into equal-volume mixing 0.01mol/L stearic acid ethanol is molten
In the mixed solution of liquid and 0.01mol/L nickel sulfate solution, 140 DEG C of hydro-thermals 7h；Take out after cooling and be dried, obtain material B；
(3) according to 0.5-10mL/cm2Ratio material B be dipped into equal-volume mix 0.01mol/L stearic acid ethanol solution
With in the mixed solution of 0.01mol/L cobalt sulfate solution, 130 DEG C of hydro-thermals 7h；Take out after cooling and be dried, obtain double-deck super-hydrophobic material
Material.
The material obtained by this method has excellent hydrophobic performance, and surface contact angle reaches 150 °, does not adhere to multiple
Complex fluid, such as water, coffee, fruit juice, ink, sea water etc., have good self-cleaning property and antifouling property.This bilayer is dredged
Water material has good corrosion resistance, and after soaking 24h in soaking 3.5wt.%NaCl solution, impedance magnitude still can reach
500 Ω cm2, hence it is evident that be better than the impedance magnitude of blank magnesium alloy.
Embodiment 2
Method prepared by the present embodiment material is substantially the same manner as Example 1, is a difference in that the heating temperature of second time hydro-thermal
Degree is 90 DEG C.
The material obtained by this method has special double-deck micro nano structure, and bottom is by the micro-nano net built
Shape structure, upper strata is the micro-nano three-dimensional laminated structure being complementary to.
The material of this method two one-step hydrothermal synthesis has excellent hydrophobic performance, and surface contact angle reaches 152 °, does not glues
Attached Various Complex liquid, has good self-cleaning property and antifouling property.This material has good corrosion resistance, is soaking
After soaking 24h in 3.5wt.%NaCl solution, impedance magnitude still can reach 800 Ω cm2。
Embodiment 3
Method prepared by the present embodiment material is substantially the same manner as Example 1, is a difference in that the heating temperature of second time hydro-thermal
Degree is 120 DEG C.
The material obtained by this method has special double-deck micro nano structure, and bottom is by the micro-nano net built
Shape structure, upper strata is the laminated structure of the micro-nano distribution uniform being complementary to.
The surface contact angle of this bilayer super hydrophobic material reaches 151 °, reaches double-deck super-hydrophobic effect equally；Possess from clear
Clean anti-fouling corrosion resistant performance, after soaking 24h in soaking 3.5wt.%NaCl solution, impedance magnitude still can reach 700 Ω cm2。
Embodiment 4
Method prepared by the present embodiment material is substantially the same manner as Example 1, is a difference in that the heating temperature of second time hydro-thermal
Degree is 110 DEG C.
The material obtained by this method has special double-deck micro nano structure, and bottom is by the micro-nano net built
Shape structure, upper strata is the micro-nano solid rectangle laminated structure being complementary to intert.
This material surface contact angle reaches 153 °, reaches double-deck super-hydrophobic effect；Possess automatically cleaning anti-fouling corrosion resistant performance,
Soaking after soaking 24h in 3.5wt.%NaCl solution, impedance magnitude still can reach 850 Ω cm2。
Embodiment 5
Method prepared by the present embodiment material is substantially the same manner as Example 1, is a difference in that the heating temperature of second time hydro-thermal
Degree is 100 DEG C.The material obtained by this method has special double-deck micro nano structure, and bottom is built by micro-nano
Network structure, upper strata is the micro-nano hexagon laminated structure being complementary to.
This material surface contact angle reaches 154 °, reaches double-deck super-hydrophobic effect；Possess automatically cleaning anti-fouling corrosion resistant performance,
Soaking after soaking 24h in 3.5wt.%NaCl solution, impedance magnitude still can reach 900 Ω cm2。
Embodiment 6
Method prepared by the present embodiment material is substantially the same manner as Example 1, is a difference in that the heating temperature of second time hydro-thermal
Degree is 105 DEG C.
The material obtained by this method has special double-deck micro nano structure, and bottom is by the micro-nano net built
Shape structure, upper strata is the arrange uneven micro-nano three-dimensional laminated structure complementary with its intercalation, and micro-nano Stereogram phase
Combined crosswise mutually.
This material surface contact angle reaches 156 °, reaches double-deck super-hydrophobic effect；Possess automatically cleaning anti-fouling corrosion resistant performance,
Soaking after soaking 24h in 3.5wt.%NaCl solution, impedance magnitude still can reach 1000 Ω cm2.Heating temperature in this method
The double-deck mutual intercalation of micro nano structure of degree is complementary, and second layer micro nano structure has certain three-dimensional support structure, has
Good hydrophobic performance.
Embodiment 7
Method prepared by the present embodiment material is substantially the same manner as Example 6, when being a difference in that the heating of second time hydro-thermal
Between be 8h.
The material obtained by this method is the super-hydrophobic crystalline material with double-deck special micro and nano structure, bottom be by
The micro-nano network structure built, upper strata is micro-nano laminated structure, and owing to the response time is longer, major part secondary water
The less hydrophobic crystalline of lamellar thinness that thermal response generates enters in the network structure of bottom, although effectively plug the gap, but
Do not play good supporting role.
The material surface contact angle of this method synthesis is 151 °.Double-deck super hydrophobic material prepared by this programme still possesses from clear
Clean anti-fouling corrosion resistant performance, after soaking 24h in soaking 3.5wt.%NaCl solution, impedance magnitude still can reach 750 Ω cm2。
Embodiment 8
Method prepared by the present embodiment material is substantially the same manner as Example 6, when being a difference in that the heating of second time hydro-thermal
Between be 7h.
The material obtained by this method has double-deck special micro and nano structure, bottom be by micro-nano build netted
Structure, upper strata is uneven micro-nano three-dimensional laminated structure.
The contact angle of material surface prepared by the method is 155 °, and double-deck super hydrophobic material prepared by this programme still possesses certainly
Cleaning anti-fouling corrosion resistant performance, after soaking 24h in soaking 3.5wt.%NaCl solution, impedance magnitude still can reach 1000 Ω
cm2。
Embodiment 9
Method prepared by the present embodiment material is substantially the same manner as Example 6, when being a difference in that the heating of second time hydro-thermal
Between be 6h.
Finally giving the super hydrophobic material with double-deck special micro and nano structure, upper strata is the vertical of micro-nano distribution uniform
Body plate shape structure, and nanometer sheet is mutually combined and interts into similar micron order flower-like structure, and this structure effectively increases final surface
Degree of roughness, drop low-surface-energy.
The contact angle of material surface prepared by this method is 157 °.It is antifouling resistance to that this bilayer super hydrophobic material still possesses automatically cleaning
Erosion performance, after soaking 24h in soaking 3.5wt.%NaCl solution, impedance magnitude still can reach 1400 Ω cm2。
Embodiment 10
Method prepared by the present embodiment material is substantially the same manner as Example 9, is a difference in that second time hydro-thermal reaction long-chain
Fatty acid is 0.2mol/L with the concentration of transition metal salt solution.
Due to the reacting substance increasing concentrations of second time hydro-thermal reaction in method prepared by the present embodiment material, the second layer is raw
The crystal morphology become is relatively big, and micro/nano level lamellar spacing is thicker, and forming the most independent three-dimensional laminated structure, to stand on ground floor micro-
On nanostructured.
The contact angle of material surface prepared by this method is 152 °, and it is antifouling resistance to that this bilayer super hydrophobic material still possesses automatically cleaning
Erosion performance, after soaking 24h in soaking 3.5wt.%NaCl solution, impedance magnitude still can reach 900 Ω cm2。
Embodiment 11
Method prepared by the present embodiment material is substantially the same manner as Example 9, is a difference in that second time hydro-thermal reaction long-chain
Fatty acid is 0.1mol/L with the concentration of transition metal salt solution.
The material obtained by this method possesses double-deck micro nano structure, upper strata be micro-nano lamella intert build flower-shaped
Structure, but flower-like structure skewness；Lower floor is the micro-nano network built.
This bilayer super hydrophobic material surface contact angle reaches 155 °, still possesses automatically cleaning anti-fouling corrosion resistant performance, is soaking
After soaking 24h in 3.5wt.%NaCl solution, impedance magnitude still can reach 1800 Ω cm2。
Embodiment 12
Method prepared by the present embodiment material is substantially the same manner as Example 9, is a difference in that second time hydro-thermal reaction long-chain
Fatty acid is 0.05mol/L with the concentration of transition metal salt solution.
The material obtained by this method possesses double-deck micro nano structure, and upper strata is uniform micro-nano flower-like structure.Under
Layer is the micro-nano network built, and the drop of macro surface can be played good support by the flower-shaped bulge-structure of microcosmic
Effect.
Material surface contact angle reaches 161 °, and this bilayer super hydrophobic material still possesses automatically cleaning anti-fouling corrosion resistant performance, in leaching
After soaking 24h in bubble 3.5wt.%NaCl solution, impedance magnitude still can reach 2000 Ω cm2.And this is had double-deck super
After the surface of hydrophobic crystalline material places 1 year in atmosphere, still there is good super-hydrophobic effect, and to different pH values
The contact angle of drop is all higher than 150 °.
Embodiment 13
Method prepared by the present embodiment material is substantially the same manner as Example 12, is a difference in that reaction choice of the substrates AZ91 type
Magnesium alloy.
This method substrate changes, but the material prepared by this method remains bottom to be micro-nano and build
Network structure, upper strata is to be interted the micron order flower-like structure constructed by nanometer sheet, and the micro-nano flower-like structure on upper strata plays very well
Supporting role.
Bilayer hydrophobic crystalline material prepared by the method has good ultra-hydrophobicity, and surface contact angle reaches 158 °,
This bilayer super hydrophobic material still possesses automatically cleaning anti-fouling corrosion resistant performance, after soaking 24h in soaking 3.5wt.%NaCl solution, and resistance
Anti-modulus value still can reach 1800 Ω cm2。
Embodiment 14
Method prepared by the present embodiment material is substantially the same manner as Example 12, is a difference in that reaction choice of the substrates aluminum closes
Gold.
It is the micro-nano network structure built that the material prepared by this method remains bottom, and upper strata is by nanometer sheet
The interspersed micron order flower-like structure constructed, the micro-nano flower-like structure on upper strata plays good supporting role.
The bilayer hydrophobic crystalline material prepared by the method has the best ultra-hydrophobicity, and surface contact angle reaches
157 °, this bilayer super hydrophobic material still possesses automatically cleaning anti-fouling corrosion resistant performance.
Embodiment 15
Method prepared by the present embodiment material is substantially the same manner as Example 12, is a difference in that reaction choice of the substrates copper closes
Gold.
It is the micro-nano network structure built that the material prepared by this method remains bottom, and upper strata is by nanometer sheet
The interspersed micron order flower-like structure constructed, the micro-nano flower-like structure on upper strata plays good supporting role.
The bilayer hydrophobic crystalline material prepared on this substrate has the best ultra-hydrophobicity, and surface contact angle reaches
162 °, this bilayer super hydrophobic material still possesses automatically cleaning anti-fouling corrosion resistant performance.
Subordinate list: embodiment technique effect summary sheet
Claims (9)
1. a double-deck super hydrophobic material, is characterized in that: include that the method by secondary hydro-thermal layer assembly is in alloy substrates
The ground floor of growth has the super-hydrophobic crystal of micro nano structure, has the super-hydrophobic plane of crystal of micro nano structure again described
The second layer of growth has the super-hydrophobic plane of crystal of micro nano structure.
Double-deck super hydrophobic material the most according to claim 1, is characterized in that: two-layer has the super-hydrophobic crystalline substance of micro nano structure
The composition of body is hard soap.
Double-deck super hydrophobic material the most according to claim 2, is characterized in that: ground floor be micro-nano lamella build netted
Crystal structure.
4. according to the double-deck super hydrophobic material described in Claims 2 or 3, it is characterized in that: the second layer is that super-hydrophobic crystal is micro-nano
Laminated structure.
5. a preparation method for double-deck super hydrophobic material, is characterized in that:
(1) alloy base material by sand papering and be immersed in ultrasonic cleaning in dehydrated alcohol remove surface oxide-film and
Greasy dirt, cleans with deionized water, is dried, it is thus achieved that materials A；
(2) according to 0.5～10mL/cm2Ratio materials A is dipped into equal-volume mixing 0.01mol/L stearic acid ethanol solution
With in the mixed solution of 0.01mol/L nickel sulfate solution, 140 DEG C of hydro-thermals 7h；Take out after cooling and be dried, obtain material B；
(3) according to 0.5～10mL/cm2Ratio material B is dipped into equal-volume mixing 0.01～0.2mol/L stearic acid second
In the mixed solution of alcoholic solution and 0.01～0.2mol/L cobalt sulfate solution, 90～130 DEG C of hydro-thermals 5～8h；Take out after cooling
It is dried, obtains double-deck super hydrophobic material.
The preparation method of double-deck super hydrophobic material the most according to claim 5, is characterized in that: described alloy base material
For magnesium alloy, copper alloy or aluminium alloy.
7. according to the preparation method of the double-deck super hydrophobic material described in claim 5 or 6, it is characterized in that: in step (3) 105 DEG C
Hydro-thermal 5-8h.
The preparation method of double-deck super hydrophobic material the most according to claim 7, is characterized in that: 105 DEG C of hydro-thermals in step (3)
6h。
The preparation method of double-deck super hydrophobic material the most according to claim 8, is characterized in that: stearic acid second in step (3)
The concentration of alcoholic solution and cobalt sulfate solution is 0.05mol/L.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666925A (en) * | 2019-01-11 | 2019-04-23 | 华东交通大学 | Metal material surface is super-hydrophobic manganese bioxide coated and preparation method thereof |
| CN110468437A (en) * | 2019-08-15 | 2019-11-19 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of preparation method of petroleum stainless steel pipes corrosion resistance structure |
| CN110592569A (en) * | 2019-09-23 | 2019-12-20 | 河海大学 | Method for constructing super-hydrophobic corrosion-resistant conversion coating on surface of magnesium-lithium alloy and magnesium-lithium alloy with super-hydrophobic corrosion resistance |
| CN116651721A (en) * | 2023-07-28 | 2023-08-29 | 山东理工大学 | High-wear-resistance super-hydrophobic metal plate and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103204457B (en) * | 2013-03-14 | 2015-10-07 | 吉林大学 | A kind of preparation method of aluminium alloy bionic super-hydrophobic surface |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666925A (en) * | 2019-01-11 | 2019-04-23 | 华东交通大学 | Metal material surface is super-hydrophobic manganese bioxide coated and preparation method thereof |
| CN110468437A (en) * | 2019-08-15 | 2019-11-19 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of preparation method of petroleum stainless steel pipes corrosion resistance structure |
| CN110592569A (en) * | 2019-09-23 | 2019-12-20 | 河海大学 | Method for constructing super-hydrophobic corrosion-resistant conversion coating on surface of magnesium-lithium alloy and magnesium-lithium alloy with super-hydrophobic corrosion resistance |
| CN116651721A (en) * | 2023-07-28 | 2023-08-29 | 山东理工大学 | High-wear-resistance super-hydrophobic metal plate and preparation method thereof |
| CN116651721B (en) * | 2023-07-28 | 2023-10-13 | 山东理工大学 | High-wear-resistance super-hydrophobic metal plate and preparation method thereof |
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