CN106521504A - Preparation method of high-hydrophobicity and low-adhesion aluminum surface - Google Patents
Preparation method of high-hydrophobicity and low-adhesion aluminum surface Download PDFInfo
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- CN106521504A CN106521504A CN201611094545.9A CN201611094545A CN106521504A CN 106521504 A CN106521504 A CN 106521504A CN 201611094545 A CN201611094545 A CN 201611094545A CN 106521504 A CN106521504 A CN 106521504A
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- China
- Prior art keywords
- aluminium base
- aluminium
- preparation
- low adhesion
- hydrophobic
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Classifications
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- C—CHEMISTRY; METALLURGY
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
-
- C—CHEMISTRY; METALLURGY
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/02—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using non-aqueous solutions
-
- C—CHEMISTRY; METALLURGY
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
Abstract
The invention relates to a preparation method of a high-hydrophobicity and low-adhesion aluminum surface. The method includes the steps that a hydrochloric acid solution and a copper chloride solution are adopted for two-step etching, a micro-nano composite structure is prepared on an aluminum surface, then a stearic acid ethanol solution is used for treatment, surface energy is reduced, and the aluminum surface with a hydrophobic effect is obtained. The treatment method is simple, easy to carry out and convenient to operate, and the contact angle can reach 150 degrees to the maximum degree.
Description
Technical field
The present invention relates to Metal Surface Modification Technique, and in particular to a kind of preparation method of high hydrophobic low adhesion aluminium surface.
Background technology
With bionic continuous development, the various phenomenons in nature are gradually known.During this, people
Be found that some animals and plants surfaces have automatically cleaning phenomenon, wherein being exactly the most typically " lotus leaf effect "：Rainwater falls in lotus
Can occur to assemble and freely roll when on leaf surface, while will be attached to the pollutants such as the dust on surface take away, so as to reach
The effect of self-cleaning surface, has surface for also having Rice Leaf of such phenomenon etc..Thus have many researchers to start to cause
Power studies the structure on its surface in the research of these phenomenons.
Aluminium is extremely common in a metal, also with the higher metal of rate, is also most widely used gold in industrial production
Category material.Aluminium and its alloy have a series of superior functions, and such as its intensity is higher, and ductility is good, have good conduction
The advantages of property, oxidative resistance.It is widely used in fields such as space flight and aviation, machine-building and chemical industry.But conventional aluminium
The performance on surface is not really well positioned to meet the growing needs of society, so researchers start for sight to be placed on metal
On, prepare similar to the surface with " lotus leaf effect " in metal surface.
Generally, prepare this surface and need to have two key elements of coarse structure and low-surface-energy.So general system
Preparation Method is also analyzed all in terms of the two.Preparing this surface at present has many methods, but these methods or material matrix are received
Limit, complex process or cost it is big etc..
The present invention provides a kind of low cost, simple, and easy to operate chemical etching method is preparing aluminium surface.
The content of the invention
The purpose of the present invention is to overcome material matrix present in prior art limited, complex process or cost big etc. to lack
Point, there is provided a kind of preparation method of high hydrophobic low adhesion aluminium surface, the preparation method of the present invention have method simple, place easy to operate
Reason, the advantages of cost is relatively low.
This law is achieved through the following technical solutions above-mentioned purpose, a kind of preparation side of high hydrophobic low adhesion aluminium surface
Method, comprises the following steps：
1) aluminium base surface is pre-processed：The sand papering of aluminium base Jing, then carries out cleaning under ultrasound condition, is subsequently placed in
It is dried in drying box；
2) prepare surface micro-nano structure：The aluminium base for passing through pretreatment is put in 0.8mol/L hydrochloric acid solutions, at normal temperatures
Etching 17-20 hours, obtain the surface of micrometer structure, are subsequently cleaned under Ultrasonic Conditions, be then dried；Then it is placed in
Etch aluminum primary surface 3 minutes in 0.8mol/L copper chloride solutions, draw
Rice structure, i.e. micro-nano compound structure, are then cleaned under Ultrasonic Conditions, are then dried again；Salt in the present invention
The acid etch time is 17-20 hours, less than normal less than the aluminium surface water droplet contact angle that setting time is prepared；During higher than setting etching
Between then aluminium surface contact angle there is no significant change.
3) reduce surface energy：By step 2) process after aluminium base be put into concentration for 0.5mol/L stearic acid ethanol solutions
In, aluminium base 1 hour is modified under the conditions of 53 DEG C, subsequently in drying box at 95 DEG C dry solidification 30 minutes, obtain high hydrophobic low
Adhesion aluminium surface.The present invention takes 0.5mol/L stearic acid ethanol solution to carry out low-surface-energy process to aluminium surface, front
The stearic acid ethanol solution of 0.1-0.2mol/L is taken to be processed in phase R＆D process, the aluminium surface water droplet after process connects
Feeler averagely be only 146 ° or so, and the present invention take 0.5mol/L stearic acid ethanol solution average contact angles can reach or
Person is more than 148 °.
Step 2) described in treatment process hydrochloric acid and two step of copper chloride etching, prepare micro-nano compound structure on aluminium base surface
Surface, is more easy to aluminium base surface hydrophobic；
Step 3) described in treatment process be, with stearic acid treatment surface, to reduce the surface energy of aluminium base, improve aluminium base surface
Hydrophobic performance；
Compared with prior art, hydrophobic micro-nano structure is prepared on aluminium base surface using the present invention, with advantages below：
1. the reagent of aluminium base etching is common agents, and easily, method is simple for configuration；
2. aluminium base surface device therefor is prepared：Ultrasonic cleaner, electronic balance, drying box and water-bath heater, these
Equipment is relatively inexpensive, and buys conveniently, simple to operate, can be with industrialized production；
3. the aluminium base surface average contact angle prepared is 148 °, can reach 150 ° and surface adhesive is very weak,
Water droplet is easily tumbled from surface；
4. the present invention prepares hydrophobic micro-nano structure surface, is conducive to improving the hydrophobic performance on aluminium base surface.
Description of the drawings
Fig. 1 is the water droplet form on hydrophobic aluminium base surface in example 1.
Specific embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to specific embodiment, to this
Invention is further described.It should be understood that these descriptions are simply exemplary, and it is not intended to limit the scope of the present invention.
Embodiment 1
It is the aluminium base Jing sand papering of 20*20*2mm by size, is cleaned by ultrasonic, and is dried with drying box, remove
The oxide layer on surface；
Prepare surface micro-nano structure：The aluminium base for passing through pretreatment is put in 0.8mol/L hydrochloric acid solutions, at normal temperatures will
Aluminium base is placed in 17 hours of etching in solution, is subsequently cleaned by ultrasonic and is dried with drying box；It is subsequently placed in 0.8mol/L chlorinations
Etch in copper solution 3 minutes, then use and be cleaned by ultrasonic and drying box drying.
By low-surface-energy：Aluminium base after will be etched is put into the stearic acid ethanol solution of the 0.5mol/L for having configured
In, 1 hour of aluminium base is modified under the conditions of 53 DEG C of water-bath, subsequently in drying box at 95 DEG C dry solidification 30 minutes, pass through
Contact angle measurement carries out experiment of dripping to the aluminium base after process, measures the contact angle that Static Water drops in aluminium base surface, as a result
150 ° are reached as high as aluminium base surface water droplet contact angle.
Embodiment 2
It is the aluminium base Jing sand papering of 20*20*2mm by size, is cleaned by ultrasonic, and is dried with drying box, remove
The oxide layer on surface；
Prepare surface micro-nano structure：The aluminium base for passing through pretreatment is put in 0.8mol/L hydrochloric acid solutions, at normal temperatures will
Aluminium base is placed in 18 hours of etching in solution, is subsequently cleaned by ultrasonic and is dried with drying box；It is subsequently placed in 0.8mol/L chlorinations
Etch in copper solution 3 minutes, then use and be cleaned by ultrasonic and drying box drying.
By low-surface-energy：Aluminium base after will be etched is put into the stearic acid ethanol solution of the 0.5mol/L for having configured
In, 1 hour of aluminium base is modified under the conditions of 53 DEG C of water-bath, subsequently in drying box at 95 DEG C dry solidification 30 minutes, pass through
Contact angle measurement carries out experiment of dripping to the aluminium base after process, measures the contact angle that Static Water drops in aluminium base surface, as a result
It is 148 ° for aluminium base surface water droplet average contact angle, shows hydrophobicity.
Embodiment 3
It is the aluminium base Jing sand papering of 20*20*2mm by size, is cleaned by ultrasonic, and is dried with drying box, remove
The oxide layer on surface；
Prepare surface micro-nano structure：The aluminium base for passing through pretreatment is put in 0.8mol/L hydrochloric acid solutions, at normal temperatures will
Aluminium base is placed in 20 hours of etching in solution, is subsequently cleaned by ultrasonic and is dried with drying box；It is subsequently placed in 0.8mol/L chlorinations
Etch in copper solution 3 minutes, then use and be cleaned by ultrasonic and drying box drying.
By low-surface-energy：Aluminium base after will be etched is put into the stearic acid ethanol solution of the 0.5mol/L for having configured
In, 1 hour of aluminium base is modified under the conditions of 53 DEG C of water-bath, subsequently in drying box at 95 DEG C dry solidification 30 minutes, pass through
Contact angle measurement carries out experiment of dripping to the aluminium base after process, measures the contact angle that Static Water drops in aluminium base surface, as a result
It is 148 ° for aluminium base surface water droplet contact angle, shows hydrophobicity.
Although embodiments of the present invention are described in detail, it should be understood that, without departing from the present invention's
In the case of spirit and scope, embodiments of the present invention can be made with various changes, replace and change.
Claims (3)
1. a kind of preparation method of high hydrophobic low adhesion aluminium surface, comprises the following steps：
1) aluminium base surface is pre-processed：The sand papering of aluminium base Jing, then carries out cleaning under ultrasound condition, is subsequently placed in drying
It is dried in case；
2) prepare micro-nano structure surface：The aluminium base for passing through pretreatment is put in 0.8mol/L hydrochloric acid solutions, is etched at normal temperatures
17-20 hours, obtain the surface of micrometer structure, are subsequently cleaned under Ultrasonic Conditions, are then dried；Then it is placed in
Etch aluminum primary surface 3 minutes in 0.8mol/L copper chloride solutions, form nanostructured on the basis of the micrometer structure on aluminium base surface,
I.e. micro-nano compound structure, is then cleaned under Ultrasonic Conditions, is dried again；
3) surface energy treatments are reduced：By step 2) process after aluminium base be put into concentration for 0.5mol/L stearic acid ethanol solutions
In, aluminium base 1 hour is modified under the conditions of 53 DEG C, subsequently in drying box at 95 DEG C dry solidification 30 minutes, obtain high hydrophobic low
Adhesion aluminium surface.
2. height according to claim 1 it is hydrophobic it is low adhesion aluminium surface preparation method, it is characterised in that：Preparation it is high hydrophobic
The water droplet average contact angle of low adhesion aluminium surface reaches 148 °.
3. height according to claim 1 it is hydrophobic it is low adhesion aluminium surface preparation method, it is characterised in that：Step 2) in by Jing
The aluminium base for crossing pretreatment is put in 0.8mol/L hydrochloric acid solutions, is etched 17 hours at normal temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094545.9A CN106521504A (en) | 2016-12-02 | 2016-12-02 | Preparation method of high-hydrophobicity and low-adhesion aluminum surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094545.9A CN106521504A (en) | 2016-12-02 | 2016-12-02 | Preparation method of high-hydrophobicity and low-adhesion aluminum surface |
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| CN106521504A true CN106521504A (en) | 2017-03-22 |
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| CN201611094545.9A Pending CN106521504A (en) | 2016-12-02 | 2016-12-02 | Preparation method of high-hydrophobicity and low-adhesion aluminum surface |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142467A (en) * | 2017-04-25 | 2017-09-08 | 云南大学 | A kind of preparation method of super lubrication aluminium surface |
| CN108654964A (en) * | 2018-06-11 | 2018-10-16 | 江苏理工学院 | A kind of preparation method on the Super-hydrophobic aluminium surface that surface property is stablized |
| CN109249136A (en) * | 2018-09-28 | 2019-01-22 | 江苏理工学院 | A kind of laser and the compound method for preparing super-hydrophobic zinc alloy surface of acid solution |
| CN109722168A (en) * | 2018-12-29 | 2019-05-07 | 哈尔滨工业大学 | A kind of preparation process on floride-free super-hydrophobic surface |
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| CN103290418A (en) * | 2013-06-24 | 2013-09-11 | 哈尔滨工业大学 | Preparation method for superamphiphobic surface of aluminum and alloy thereof |
| CN103409754A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Etching-based surface super-hydrophobicity treatment technology for aluminium material |
| US20150208662A1 (en) * | 2014-01-29 | 2015-07-30 | Catcher Technology Co., Ltd. | Antimicrobial complex surface and method of fabricating the same |
| CN105413994A (en) * | 2015-12-15 | 2016-03-23 | 大连理工大学 | Preparation method for super-hydrophobic surface with bionic micro-nano composite structure |
| CN105521934A (en) * | 2016-02-02 | 2016-04-27 | 浙江大学 | Preparation method of super-hydrophobic coating layer on aluminum surface |
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2016
- 2016-12-02 CN CN201611094545.9A patent/CN106521504A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290418A (en) * | 2013-06-24 | 2013-09-11 | 哈尔滨工业大学 | Preparation method for superamphiphobic surface of aluminum and alloy thereof |
| CN103409754A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Etching-based surface super-hydrophobicity treatment technology for aluminium material |
| US20150208662A1 (en) * | 2014-01-29 | 2015-07-30 | Catcher Technology Co., Ltd. | Antimicrobial complex surface and method of fabricating the same |
| CN105413994A (en) * | 2015-12-15 | 2016-03-23 | 大连理工大学 | Preparation method for super-hydrophobic surface with bionic micro-nano composite structure |
| CN105521934A (en) * | 2016-02-02 | 2016-04-27 | 浙江大学 | Preparation method of super-hydrophobic coating layer on aluminum surface |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142467A (en) * | 2017-04-25 | 2017-09-08 | 云南大学 | A kind of preparation method of super lubrication aluminium surface |
| CN107142467B (en) * | 2017-04-25 | 2019-11-12 | 云南大学 | A kind of preparation method of super lubrication aluminium surface |
| CN108654964A (en) * | 2018-06-11 | 2018-10-16 | 江苏理工学院 | A kind of preparation method on the Super-hydrophobic aluminium surface that surface property is stablized |
| CN109249136A (en) * | 2018-09-28 | 2019-01-22 | 江苏理工学院 | A kind of laser and the compound method for preparing super-hydrophobic zinc alloy surface of acid solution |
| CN109722168A (en) * | 2018-12-29 | 2019-05-07 | 哈尔滨工业大学 | A kind of preparation process on floride-free super-hydrophobic surface |
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Application publication date: 20170322 |