CN110205452A - Hydrophobic steel plate of a kind of micron of octahedron/nano whiskers structure and preparation method thereof - Google Patents
Hydrophobic steel plate of a kind of micron of octahedron/nano whiskers structure and preparation method thereof Download PDFInfo
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- CN110205452A CN110205452A CN201910333794.6A CN201910333794A CN110205452A CN 110205452 A CN110205452 A CN 110205452A CN 201910333794 A CN201910333794 A CN 201910333794A CN 110205452 A CN110205452 A CN 110205452A
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- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
Abstract
The invention discloses the preparation methods of the hydrophobic steel plate of a kind of micron of octahedron/nano whiskers structure, the following steps are included: S1, clean steel plate will be handled being immersed in ethylenediamine solution, 6~7h, cleaning are reacted at 160~165 DEG C, drying, obtains primary steel plate；S2, in air atmosphere, egg white solution is placed in tube furnace at 540~600 DEG C 0.5~2h of annealing；S3, the primary steel plate for obtaining S1 make annealing treatment 1.5~2h, cooled to room temperature obtains second level steel plate in the atmosphere for the egg white burning that S2 is obtained at 500~600 DEG C；S4, the second level steel plate that S3 is obtained is placed in low-surface energy substance solution, is impregnated, washing, dried to get hydrophobic steel plate is arrived.Method of the invention is easy to operate, and the surface of steel plate has octahedra and perpendicular to its surface the acicular texture of micron order, improves its hydrophobic performance and corrosion resisting property.
Description
Technical field
The invention belongs to technical field of metal anti-corrosion, and in particular to a kind of micron of octahedron/nano whiskers structure is hydrophobic
Steel plate and preparation method thereof.
Background technique
Steel is used widely in military industry and civilian industry since its is cheap.But steel is easily corroded,
Steel Properties decline through corroding, service life shorten, and very big loss is brought to economy, at present by applying on the surface of steel
It covers corrosion inhibiter or coating etc. to protect steel surface, but coating is usually on the high side also to have some pairs of environment once in a while
Harmful substance；Corrosion inhibiter is milder, but is not suitable for large area and uses, thus limits the use development of steel.Current
Research find steel surface formed hydrophobic surface can be applied to drag reduction, freezing frosting, it is corrosion-resistant, in terms of.
The main path of hydrophobic surface preparation is first to construct nanometer necessary to super hydrophobic surface/micro- in the surface of solids
Then rice/micro/nano level coarse structure is obtained by low-surface energy substance modification.Prepare microstructure needed for super hydrophobic surface
Common method have chemical etching, template, anodic oxidation, electro-deposition and laser processing etc., in practical applications using more
Be laser processing and anodizing technology.Currently, the preparation of laser technology and anodizing technology in surface-texturing structure
Need to be improved in terms of precision and efficiency, it is simple using laser technology or anodic oxidation preparation have ultra-hydrophobicity it is micro-/receive
Rice composite structure surface effect achieved is also less desirable.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of micron of octahedron/nano whiskers structures
Hydrophobic steel plate and preparation method thereof.Hydrophobic steel plate prepared by the present invention has excellent water repelling property and corrosion resisting property, and provides
Preparation method be simple and convenient to operate, be safe and non-toxic.
The first purpose of the invention is to provide the preparations of the hydrophobic steel plate of a kind of micron of octahedron/nano whiskers structure
Method, comprising the following steps:
S1, it clean steel plate will be handled is immersed in ethylenediamine solution, 6~7h is reacted at 160~165 DEG C, it is natural
It is cooled to room temperature, takes out steel plate, cleaning, drying obtain primary steel plate；
S2, in air atmosphere, egg white solution is made annealing treatment at 540~600 DEG C to 0.5~2h in tube furnace, it is natural
It is cooling, obtain the tube furnace with egg white combustion atmosphere；
S3, the primary steel plate for obtaining S1 are placed in the tube furnace with egg white combustion atmosphere that S2 is obtained, in 500~
1.5~2h is made annealing treatment at 600 DEG C, cooled to room temperature obtains second level steel plate；
S4, the second level steel plate that S3 is obtained is placed in low-surface energy substance solution, immersion, washing, drying are micro- to get arriving
The rice hydrophobic steel plate of octahedron/nano whiskers structure.
Preferably, in step S1, the clean steel plate of the processing dries to obtain by the way that cleaning steel plate is multiple.
Preferably, the steel plate is N80 steel plate.
Preferably, in step S1, the concentration of the ethylenediamine solution is 3.6~3.8mol/L.
Preferably, in step S2 and S3, the heating rate of the tube furnace is 5 DEG C/min.
Preferably, in step S3, the temperature of the annealing is 550 DEG C, annealing time 2h.
Preferably, in step S4, the low-surface energy substance in the low-surface energy substance solution is stearic acid, and solvent is
Ethyl alcohol, and the concentration of low-surface energy substance solution is 8mmol/L.
Preferably, in step S4, the soaking time is 4~6h.
Second purpose of the invention is to provide a kind of hydrophobic steel plate that above-mentioned preparation method is prepared.
Preferably, the surface of the hydrophobic steel plate has micron order octahedral structure and the needle perpendicular to octahedra surface
Shape elongate configuration.
Compared with prior art, the present invention the beneficial effect is that:
(1) present invention is configured to by the way of the modification of a hydro-thermal method, twice annealing process and low-surface energy substance
Have micron order octahedra to surface and the hydrophobic steel plate of the acicular texture perpendicular to its surface, operating method is simple, conveniently,
It is easily achieved, and safe preparation process is nontoxic, environmental pollution is small；
(2) hydrophobic steel plate prepared by the present invention has excellent water repelling property and corrosion resisting property, can reduce water and steel plate table
The contact area in face, and slow down corrosion rate, prolong the service life, reduces corrosion bring economy damage to a certain extent
It loses；
(3) present invention annealing in the atmosphere after egg white solution burning can prepare peculiar receives perpendicular to octahedral
Rice acicular texture, constitutes micro-nano Multi-scale model, effectively improves its hydrophobic performance.
Detailed description of the invention
Fig. 1 is the scanning electron microscope (SEM) photograph of the hydrophobic surface of steel plate of micron octahedron/nano whiskers structure prepared by the present invention；
Wherein: Fig. 1 (a) is the scanning electron microscope (SEM) photograph of primary steel plate obtained in the embodiment of the present invention 1；Fig. 1 (b) is the present invention
The scanning electron microscope (SEM) photograph of hydrophobic steel plate obtained in comparative example 1；Fig. 1 (c) is the scanning electron microscope of hydrophobic steel plate prepared by embodiment 2
Figure；Fig. 1 (d) is the scanning electron microscope (SEM) photograph of hydrophobic steel plate prepared by embodiment 1；Fig. 1 (e) is hydrophobic steel plate prepared by comparative example 2
Scanning electron microscope (SEM) photograph；
Fig. 2 is the contact angle and roll angle of the hydrophobic steel plate of micron octahedron/nano whiskers structure prepared by the present invention
Figure；
Wherein: Fig. 2 (a) is the contact angle and roll angle figure of hydrophobic steel plate prepared by comparative example 1；Fig. 2 (b) is embodiment 2
The contact angle and roll angle figure of the hydrophobic steel plate of preparation；Fig. 2 (c) is contact angle and the rolling of hydrophobic steel plate prepared by embodiment 1
Angle figure；Fig. 2 (d) is the contact angle and roll angle figure of hydrophobic steel plate prepared by comparative example 2；
Fig. 3 carries out electro-chemical test for hydrophobic steel plate prepared by the embodiment of the present invention 1 in 5wt%NaCl solution and obtains
Polarization curve and impedance spectrum；
Wherein: Fig. 3 (a) is polarization curve；Fig. 3 (b) is impedance spectrum；
Fig. 4 is the procedure chart that water droplet prepares resulting hydrophobic steel plate close to the embodiment of the present invention 1；
Fig. 5 is the surface infiltration behavior figure that the embodiment of the present invention 1 prepares resulting hydrophobic steel plate；
Wherein: Fig. 5 (a) is completely immersed in water for hydrophobic surface of steel plate to scheme；Fig. 5 (b) water droplet rests on hydrophobic surface of steel plate
On state diagram；Fig. 5 (c) is the automatically cleaning behavior figure of hydrophobic surface.
Specific embodiment
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawing, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.The test method of actual conditions is not specified in the following example, usually according to
Normal condition, or according to condition proposed by each manufacturer.
The heating rate of tube furnace is 5 DEG C/min in following embodiment.
Embodiment 1
A kind of preparation method of the hydrophobic steel plate of micron of octahedron/nano whiskers structure, comprising the following steps:
S1, N80 steel plate ethyl alcohol and distilled water are cleaned repeatedly, removes surface blot, it is dry to obtain processing for naturally dry
Net steel plate；
S2, reaction kettle is added to handle clean steel plate in the ethylenediamine solution and S1 of 3.75mol/L in 20mL concentration
In, 7h is reacted at 165 DEG C, cooled to room temperature is taken out steel plate, cleaned repeatedly with ethyl alcohol and distilled water, dries, obtains
Primary steel plate；
S3, the egg white solution of 3mL is placed in silica crucible, in air atmosphere, is annealed at 550 DEG C in tube furnace
0.5h is handled, cooled to room temperature takes out crucible, obtains the tube furnace with egg white combustion atmosphere；
S4, the primary steel plate for obtaining S2 are placed in clean crucible, and be put into that S3 obtains has egg white combustion atmosphere
Tube furnace in, egg white burning atmosphere in, 2h is made annealing treatment at 550 DEG C, cooled to room temperature obtains second level steel
Plate；
S5, the second level steel plate that S4 is obtained is placed in the stearic acid ethanol solution of 8mmol/L, 5h is impregnated at 25 DEG C, so
It is multiple with ethyl alcohol and distillation water washing afterwards, it dries to get the hydrophobic steel plate of micron octahedron/nano whiskers structure is arrived.
Embodiment 2
A kind of preparation method of the hydrophobic steel plate of micron of octahedron/nano whiskers structure, comprising the following steps:
S1, N80 steel plate ethyl alcohol and distilled water are cleaned repeatedly, removes surface blot, it is dry to obtain processing for naturally dry
Net steel plate；
S2, reaction kettle is added to handle clean steel plate in the ethylenediamine solution and S1 of 3.75mol/L in 20mL concentration
In, 7h is reacted at 165 DEG C, cooled to room temperature is taken out steel plate, cleaned repeatedly with ethyl alcohol and distilled water, dries, obtains
Primary steel plate；
S3, the egg white solution of 3mL is placed in silica crucible, in air atmosphere, is annealed at 550 DEG C in tube furnace
0.5h is handled, cooled to room temperature takes out crucible, obtains the tube furnace with egg white combustion atmosphere；
S4, the primary steel plate for obtaining S2 are placed in clean crucible, and be put into that S3 obtains has egg white combustion atmosphere
Tube furnace in, egg white burning atmosphere in, 1.5h is made annealing treatment at 550 DEG C, cooled to room temperature obtains second level
Steel plate；
S5, the second level steel plate that S4 is obtained is placed in the stearic acid ethanol solution of 8mmol/L, 5h is impregnated at 25 DEG C, so
It is multiple with ethyl alcohol and distillation water washing afterwards, it dries to get the hydrophobic steel plate of micron octahedron/nano whiskers structure is arrived.
Embodiment 3
A kind of preparation method of the hydrophobic steel plate of micron of octahedron/nano whiskers structure, comprising the following steps:
S1, N80 steel plate ethyl alcohol and distilled water are cleaned repeatedly, removes surface blot, it is dry to obtain processing for naturally dry
Net steel plate；
S2, reaction kettle is added to handle clean steel plate in the ethylenediamine solution and S1 of 3.6mol/L in 20mL concentration
In, 6h is reacted at 160 DEG C, cooled to room temperature is taken out steel plate, cleaned repeatedly with ethyl alcohol and distilled water, dries, obtains
Primary steel plate；
S3, the egg white solution of 3mL is placed in silica crucible, in air atmosphere, is annealed at 600 DEG C in tube furnace
0.5h is handled, cooled to room temperature takes out crucible, obtains the tube furnace with egg white combustion atmosphere；
S4, the primary steel plate for obtaining S2 are placed in clean crucible, and be put into that S3 obtains has egg white combustion atmosphere
Tube furnace in, egg white burning atmosphere in, 2h is made annealing treatment at 500 DEG C, cooled to room temperature obtains second level steel
Plate；
S5, the second level steel plate that S4 is obtained is placed in the stearic acid ethanol solution of 8mmol/L, 4h is impregnated at 25 DEG C, so
It is multiple with ethyl alcohol and distillation water washing afterwards, it dries to get the hydrophobic steel plate of micron octahedron/nano whiskers structure is arrived.
Embodiment 4
A kind of preparation method of the hydrophobic steel plate of micron of octahedron/nano whiskers structure, comprising the following steps:
S1, N80 steel plate ethyl alcohol and distilled water are cleaned repeatedly, removes surface blot, it is dry to obtain processing for naturally dry
Net steel plate；
S2, reaction kettle is added to handle clean steel plate in the ethylenediamine solution and S1 of 3.8mol/L in 20mL concentration
In, 7h is reacted at 165 DEG C, cooled to room temperature is taken out steel plate, cleaned repeatedly with ethyl alcohol and distilled water, dries, obtains
Primary steel plate；
S3, the egg white solution of 3mL is placed in silica crucible, in air atmosphere, is annealed at 540 DEG C in tube furnace
2h is handled, cooled to room temperature takes out crucible, obtains the tube furnace with egg white combustion atmosphere；
S4, the primary steel plate for obtaining S2 are placed in clean crucible, and be put into that S3 obtains has egg white combustion atmosphere
Tube furnace in, egg white burning atmosphere in, 1.5h is made annealing treatment at 600 DEG C, cooled to room temperature obtains second level
Steel plate；
S5, the second level steel plate that S4 is obtained is placed in the stearic acid ethanol solution of 8mmol/L, 6h is impregnated at 25 DEG C, so
It is multiple with ethyl alcohol and distillation water washing afterwards, it dries to get the super-hydrophobic steel plate of micron octahedron/nano whiskers structure is arrived.
Comparative example 1
A kind of preparation method of the hydrophobic steel plate of micron of octahedron/nano whiskers structure, comprising the following steps:
S1, N80 steel plate ethyl alcohol and distilled water are cleaned repeatedly, removes surface blot, it is dry to obtain processing for naturally dry
Net steel plate；
S2, reaction kettle is added to handle clean steel plate in the ethylenediamine solution and S1 of 3.75mol/L in 20mL concentration
In, 7h is reacted at 165 DEG C, cooled to room temperature is taken out steel plate, cleaned repeatedly with ethyl alcohol and distilled water, dries, obtains
Primary steel plate；
S3, the egg white solution of 3mL is placed in silica crucible, in air atmosphere, is annealed at 550 DEG C in tube furnace
0.5h is handled, cooled to room temperature takes out crucible, obtains the tube furnace with egg white combustion atmosphere；
S4, the primary steel plate for obtaining S2 are placed in clean crucible, and be put into that S3 obtains has egg white combustion atmosphere
Tube furnace in, egg white burning atmosphere in, 0.5h is made annealing treatment at 550 DEG C, cooled to room temperature obtains second level
Steel plate；
S5, the second level steel plate that S4 is obtained is placed in the stearic acid ethanol solution of 8mmol/L, 5h is impregnated at 25 DEG C, so
It is multiple with ethyl alcohol and distillation water washing afterwards, it dries to get the hydrophobic steel plate of micron octahedron/nano whiskers structure is arrived.
Comparative example 2
A kind of preparation method of the hydrophobic steel plate of micron of octahedron/nano whiskers structure, comprising the following steps:
S1, N80 steel plate ethyl alcohol and distilled water are cleaned repeatedly, removes surface blot, it is dry to obtain processing for naturally dry
Net steel plate；
S2, reaction kettle is added to handle clean steel plate in the ethylenediamine solution and S1 of 3.75mol/L in 20mL concentration
In, 7h is reacted at 165 DEG C, cooled to room temperature is taken out steel plate, cleaned repeatedly with ethyl alcohol and distilled water, dries, obtains
Primary steel plate；
S3, the egg white solution of 3mL is placed in silica crucible, in air atmosphere, is annealed at 550 DEG C in tube furnace
0.5h is handled, cooled to room temperature takes out crucible, obtains the tube furnace with egg white combustion atmosphere；
S4, the primary steel plate for obtaining S2 are placed in clean crucible, and be put into that S3 obtains has egg white combustion atmosphere
Tube furnace in, egg white burning atmosphere in, 2.5h is made annealing treatment at 550 DEG C, cooled to room temperature obtains second level
Steel plate；
S5, the second level steel plate that S4 is obtained is placed in the stearic acid ethanol solution of 8mmol/L, 5h is impregnated at 25 DEG C, so
It is multiple with ethyl alcohol and distillation water washing afterwards, it dries to get the hydrophobic steel plate of micron octahedron/nano whiskers structure is arrived.
Below by taking Examples 1 and 2 as an example, to the hydrophobic steel plate of micron octahedron/nano whiskers structure prepared by the present invention
Pattern and performance studied
Fig. 1 is the scanning electron microscope (SEM) photograph of the hydrophobic surface of steel plate of micron octahedron/nano whiskers structure prepared by the present invention；
By Fig. 1 (a) as can be seen that the surface of steel plate after hydro-thermal process has octahedral structure not of uniform size；Pass through Fig. 1
(b) as can be seen that when second of annealing time is 0.5h (comparative example 1), prepared hydrophobic surface of steel plate octahedral structure
On there are some nano particles；Through Fig. 1 (c) as can be seen that when second of annealing time is 1.5h (embodiment 2), institute
It has been grown on the hydrophobic surface of steel plate octahedral structure of preparation and some some nano whiskers perpendicular to octahedra surface has occurred
Structure, but octahedral all surface is not covered；By Fig. 1 (d) as can be seen that when second of annealing time is 2h (real
Apply example 1) when, prepared hydrophobic steel plate octahedron surface covering is complete, and each face is long by the nano whiskers perpendicular to surface
Item is covered；Through Fig. 1 (e) as can be seen that when second of annealing time is 2.5h (comparative example 2), prepared hydrophobic steel
The needle-shaped strip continued growth of plate surface is elongated, and needle-shaped strip this at this time has had exceeded a nanometer stage, has reached micron
Grade, is no longer Multi-scale model, by result above it is found that the embodiment of the present invention passes through the regulation to the double annealing time, system
The standby surface that obtained is with the hydrophobic steel plate of micron octahedron/nano whiskers structure.
Fig. 2 is the contact angle and roll angle of the hydrophobic steel plate of micron octahedron/nano whiskers structure prepared by the present invention
Figure.Through Fig. 2 (a) it is found that when second of annealing time is 0.5h (comparative example 1), the contact angle of prepared hydrophobic steel plate
It is respectively 152.7 ° and 18.7 ° with roll angle, by Fig. 2 (b) it is found that when second of annealing time is 1.5h (embodiment 2)
When, the contact angle and roll angle of prepared hydrophobic steel plate are respectively 155.5 ° and 11.5 °, by Fig. 2 (c) it is found that when second
When secondary annealing time continues to increase to 2h (embodiment 1), the contact angle and roll angle of prepared hydrophobic steel plate are respectively
It is 157.3 ° and 8.1 °, made through Fig. 2 (d) it is found that when second of annealing time continues to increase to 2.5h (comparative example 2)
The contact angle and roll angle of standby hydrophobic steel plate are respectively 153.6 ° and 15.5 °, by the above results it is found that ought move back for the second time
When the fiery time is less than 2h, with the extension of annealing time, contact angle is in increase tendency, and roll angle is in reduction trend.When second
When annealing time is greater than 2h, with the extension of annealing time, contact angle is in reduction trend, and roll angle starts to become larger.So when the
Hydrophobic performance reaches most preferably when the double annealing time is 2h (embodiment 1), and has reached super-hydrophobic state.
Fig. 3 is that super-hydrophobic steel plate prepared by embodiment 1 carries out the pole that electro-chemical test obtains in 5wt%NaCl solution
Change curve and impedance spectrum.By the polarization curve of Fig. 3 (a) it is found that the current potential for the steel plate being prepared is moved to positive direction
Dynamic, curve is also moved to the left, and illustrates that treated, and steel plate corrosion current density is smaller relative to untreated N80 steel plate,
It is more difficult to corrode, by the impedance diagram of Fig. 3 (b) it is found that the semicircle arc dia for the steel plate being prepared is much larger than untreated
The semicircle arc dia of N80 steel plate, this also illustrates that the impedance of steel plate prepared by the present invention is greater than the impedance of N80 steel plate well.
So processed super-hydrophobic steel plate has better corrosion resisting property compared with N80 steel plate.
Fig. 4 is the procedure chart that water droplet prepares resulting super-hydrophobic steel plate close to the embodiment of the present invention 1.When water droplet touches
When super hydrophobic surface, contact surface is in refractory state, does not occur biggish surface tension and absorbs water droplet, with
The rising of water droplet can be found that bottommost still has certain adhesion strength, but very small, so that water droplet still can be light
Disengaging super hydrophobic surface, during rising, it can be found that being restored to without there is too big fluctuation until completely disengaging
State originally, thus the air layer of this super-hydrophobic surface of steel plate can play reduce water droplet and contact surface area to
Reduce adhesion strength.
Fig. 5 is the surface infiltration behavior figure that the embodiment of the present invention 1 prepares resulting super-hydrophobic steel plate.It can from Fig. 5 (a)
To find when super-hydrophobic steel plate is completely immersed in water, it is the reflective mirror surface of one side that surface, which shows, and some flaws are not present
Defect illustrates surface there is no defect, and the air layer between water and super hydrophobic surface has completely cut off the absorption of water well.Fig. 5 (b)
The state diagram on super hydrophobic surface is rested on for water droplet, it can be seen that each water droplet shows the spherical shape of a completion, is in
Refractory state does not soak surface.Fig. 5 (c) is the automatically cleaning behavior figure of super hydrophobic surface, it can be seen that when water droplet drippage,
Water droplet can tumble quickly and take away the bits of the chalk on surface of steel plate.
To sum up, by Figure 4 and 5 it is found that the hydrophobic steel plate of preparation of the embodiment of the present invention has good hydrophobic performance.
In conclusion the surface of hydrophobic steel plate provided in an embodiment of the present invention has micron octahedron/nano whiskers knot
Structure, and the hydrophobic steel plate prepared shows excellent hydrophobic performance and corrosion resisting property.
It should be noted that involved in claims of the present invention when numberical range, it is thus understood that each numberical range
Any one numerical value can be selected between two endpoints and two endpoints, since the step method of use is identical as embodiment,
It repeats in order to prevent, the present invention describes preferred embodiment and its effect, and once a person skilled in the art knows bases
This creative concept, then additional changes and modifications may be made to these embodiments.So appended claims are intended to explain
Being includes preferred embodiment and all change and modification for falling into the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from of the invention by those skilled in the art
Spirit and scope.In this way, if these modifications and changes of the present invention belongs to the model of the claims in the present invention and its equivalent technologies
Within enclosing, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. the preparation method of the hydrophobic steel plate of a kind of micron of octahedron/nano whiskers structure, which is characterized in that including following step
It is rapid:
S1, it clean steel plate will be handled is immersed in ethylenediamine solution, react 6~7h at 160~165 DEG C, natural cooling,
Steel plate is taken out, cleaning, drying obtain primary steel plate；
S2, in air atmosphere, egg white solution is placed in tube furnace at 540~600 DEG C 0.5~2h of annealing, it is naturally cold
But, the tube furnace with egg white combustion atmosphere is obtained；
S3, the primary steel plate for obtaining S1 are placed in the tube furnace with egg white combustion atmosphere that S2 is obtained, in 500~600 DEG C
1.5~2h of lower annealing, cooled to room temperature obtain second level steel plate；
S4, the second level steel plate that S3 is obtained is placed in low-surface energy substance solution, impregnates, washing, dries to get micron octahedral is arrived
The hydrophobic steel plate of body/nano whiskers structure.
2. the preparation method of the hydrophobic steel plate of micron octahedron/nano whiskers structure according to claim 1, feature exist
In in step S1, the clean steel plate of the processing is to dry to obtain by cleaning repeatedly steel plate ethyl alcohol and distilled water.
3. the preparation method of the hydrophobic steel plate of micron octahedron/nano whiskers structure according to claim 2, feature exist
In the steel plate is N80 steel plate.
4. the preparation method of the hydrophobic steel plate of micron octahedron/nano whiskers structure according to claim 1, feature exist
In in step S1, the concentration of the ethylenediamine solution is 3.6~3.8mol/L.
5. the preparation method of the hydrophobic steel plate of micron octahedron/nano whiskers structure according to claim 1, feature exist
In in step S2 and S3, the heating rate of the tube furnace is 5 DEG C/min.
6. the preparation method of the hydrophobic steel plate of micron octahedron/nano whiskers structure according to claim 1, feature exist
In in step S3, the temperature of the annealing is 550 DEG C, annealing time 2h.
7. the preparation method of the hydrophobic steel plate of micron octahedron/nano whiskers structure according to claim 1, feature exist
In in step S4, low-surface energy substance in the low-surface energy substance solution is stearic acid, and solvent is ethyl alcohol, and low surface
The concentration of energy substance solution is 8mmol/L.
8. the preparation method of the hydrophobic steel plate of micron octahedron/nano whiskers structure according to claim 1, feature exist
In in step S4, the soaking time is 4~6h.
9. a kind of hydrophobic steel plate that preparation methods described in any item according to claim 1~8 obtain.
10. hydrophobic steel plate according to claim 9, which is characterized in that the surface of the hydrophobic steel plate has micron order eight
Face body structure and needle-shaped elongate configuration perpendicular to octahedra surface.
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| CN201910333794.6A CN110205452B (en) | 2019-04-24 | 2019-04-24 | Hydrophobic steel plate with micron octahedron/nano needle-shaped structure and preparation method thereof |
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| CN201910333794.6A CN110205452B (en) | 2019-04-24 | 2019-04-24 | Hydrophobic steel plate with micron octahedron/nano needle-shaped structure and preparation method thereof |
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| CN110205452B CN110205452B (en) | 2020-10-27 |
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Cited By (1)
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| CN113564589A (en) * | 2021-07-05 | 2021-10-29 | 浙江瀛迪新材料科技有限公司 | Steel plate film and production process thereof |
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| CN104562049A (en) * | 2014-12-22 | 2015-04-29 | 中国石油大学(华东) | Method for preparing steel matrix-based super-hydrophobic functional surface |
| CN108977801A (en) * | 2018-08-17 | 2018-12-11 | 西北大学 | A kind of preparation method for the 3-D nano, structure plate membrane that high water resistant is anti-corrosion |
| EP3306698B1 (en) * | 2015-05-29 | 2019-01-09 | Nisshin Steel Co., Ltd. | Battery armoring stainless steel foil and method of producing same |
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| JPH0578107A (en) * | 1991-09-19 | 1993-03-30 | Yoshikiyo Ogino | Nitride powder |
| CN104562049A (en) * | 2014-12-22 | 2015-04-29 | 中国石油大学(华东) | Method for preparing steel matrix-based super-hydrophobic functional surface |
| EP3306698B1 (en) * | 2015-05-29 | 2019-01-09 | Nisshin Steel Co., Ltd. | Battery armoring stainless steel foil and method of producing same |
| CN108977801A (en) * | 2018-08-17 | 2018-12-11 | 西北大学 | A kind of preparation method for the 3-D nano, structure plate membrane that high water resistant is anti-corrosion |
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| CN113564589A (en) * | 2021-07-05 | 2021-10-29 | 浙江瀛迪新材料科技有限公司 | Steel plate film and production process thereof |
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