CN104630756B - In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane - Google Patents
In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane Download PDFInfo
- Publication number
- CN104630756B CN104630756B CN201510045135.4A CN201510045135A CN104630756B CN 104630756 B CN104630756 B CN 104630756B CN 201510045135 A CN201510045135 A CN 201510045135A CN 104630756 B CN104630756 B CN 104630756B
- Authority
- CN
- China
- Prior art keywords
- acid
- sodium
- ceramic membrane
- heat conduction
- high heat
- 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.)
- Active
Links
Classifications
-
- 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
- C23C22/05—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 aqueous solutions
- C23C22/06—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 aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—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 aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
-
- 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
- C23C22/05—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 aqueous solutions
- C23C22/06—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 aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—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 aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/56—Treatment of aluminium or alloys based thereon
-
- 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
- C23C22/78—Pretreatment of the material to be coated
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Laminated Bodies (AREA)
- ing And Chemical Polishing (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention relates to a kind of method for forming high heat conduction hydrophilic ceramic membrane in aluminium surface, is characterized in the high heat conduction hydrophilic ceramic membrane obtained by oxidant, activator, PH conditioning agents, auxiliary agent content and oxidizing temperature, time in chemical oxidation solution in Effective Regulation chemical oxidation operation.Thus, it is possible to it is 0.01 to 100 μm of high heat conduction hydrophilic ceramic membrane to form thickness in aluminium surface, and it is 0 to 30 with the contact angle of water.Also, the ceramic membrane thermal conductivity for adopting is 0.1 50 W/ (mK), and far above traditional organic hydrophilic coating, temperature tolerance is strong.Meanwhile, which is resistant to 600 degree of high temperature, fire-retardant, and is firmly combined with aluminium substrate, even if also not falling off using ultrasonic wave cleaning in 30 minutes, greatly improves application.
Description
Technical field
The present invention relates to a kind of method that aluminium surface forms ceramic membrane, more particularly to one kind is in aluminium surface formation high heat conduction parent
The method of water nano ceramics film.
Background technology
When heat exchanger of air condition works, can be because vapor form " water bridge " in the condensation of fin surface, therefore impact is passed
The flowing of heat and air.Meanwhile, fin can be formed " white powder " so as to which the life-span is received during Long-Time Service because of corroding
To impact.To solve the problems, such as " water bridge " and " white powder ", hydrophilic treated is carried out to fin surface, fin surface is generated with parent
Aqueous etching resistant film, makes the water droplet of condensation be spread on surface rapidly, forms very thin moisture film, it is to avoid is formed " water bridge ", is subtracted
Few windage, and anti-oxidation, increase heat exchange area, accelerate cooling and warming speed, are also prevented effectively from condensed water and hinder air stream
The noise for moving and producing.
Fin hydrophilic aluminium foil requires that its face coat hydrophily is high, adhesive force is strong, corrosion stability is high, heat resistance good and good
Processing forming etc..Hydrophilic coating mainly has three big series：Organic hydrophilic coating, organo-mineral complexing hydrophilic coating and inorganic
Hydrophilic coating, at present using it is more be organic hydrophilic coating.During organic hydrophilic coating its hydrophilicity depends on hydrophilic resin
- hydrophilic functional groups such as OH bases ,-NH2 bases ,-COOH bases.When hydrophilic resin is coated with, add mostly a small amount of interfacial activity
Agent, to improve hydrophilic effect.The advantage of resin hydrophilic coating is：Grinding tool wear rate is low, is destitute of smell during operation of air conditioner, has the disadvantage
Corrosion stability is relatively low, and with during copper pipe soldering, heat sink end fin surface can yellowing.Organo-mineral complexing hydrophilic coating be by
Hydrophilic resin and a small amount of silicate or soluble silica gel composition, the hydrophily of the coating film forming, corrosion resistance and odorless
Property etc. it is main provided by organic high molecular compound, the silicate/silica gel of addition can further improve its hydrophily or adjust which
Silicate in hardness, but coating causes film to send the stink like mud.Traditional inorganic hydrophilic film low price, the parent of film
It is aqueous good, but the anti-corrosion of film, odorless are poor, and mould easy to wear when processing.
The content of the invention
The purpose of the present invention is exactly to solve the above-mentioned problems in the prior art, there is provided one kind is formed in aluminium surface
The method of high heat conduction hydrophilic ceramic membrane
The purpose of the present invention is achieved through the following technical solutions：
In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane, which comprises the following steps：Step 1., to aluminium surface
Oil removing operation is carried out, i.e., the grease of metallic aluminum surface is removed with alkaline degreasing solution.Step 2., removed with acid solution by acid etching operation
Remove the alkaline degreasing solution of the oxide layer and residual of metallic aluminum surface.Step 3., chemical oxidation operation, i.e., with the oxygen of certain proportioning
Change liquid, promote metallic aluminum surface to generate hydrophilic nano ceramic membrane.4., drying process takes out Jing after chemical oxidation step
Sample, is dried Jing after deionized water is rinsed, and finally forms high heat conduction hydrophilic ceramic membrane in aluminium surface.
The above-mentioned method for forming high heat conduction hydrophilic ceramic membrane in aluminium surface, wherein：Described alkaline degreasing solution
By alkali lye 20 to 50g/L, phosphate 15 to 25g/L, silicate 3 to 5g/L, carbonate 1 to 2g/L are constituted, wherein, described alkali
Liquid is potassium hydroxide, NaOH, calcium hydroxide, one or more in barium hydroxide, described phosphate be potassium phosphate,
One or more in potassium hydrogen phosphate, sodium phosphate, dibastic sodium phosphate, described silicate is potassium silicate, the one kind in sodium metasilicate
Or it is various, described carbonate is sodium carbonate, potassium carbonate, saleratus, one or more in sodium acid carbonate.
Further, the above-mentioned method for forming high heat conduction hydrophilic ceramic membrane in aluminium surface, wherein：Described oil removing
In operation, for 50 to 80 DEG C, process time is 5 to 10min to the treatment temperature for adopting.
Further, the above-mentioned method for forming high heat conduction hydrophilic ceramic membrane in aluminium surface, wherein：Described acid
In erosion operation, acid solution is strong acid, and consumption is 100 to 150 g/L, and temperature is 30 to 40 DEG C, and the time is 2 to 5min.
Further, the above-mentioned method for forming high heat conduction hydrophilic ceramic membrane in aluminium surface, wherein：Described is strong
Acid is nitric acid, sulfuric acid, hydrochloric acid, one or more in metaphosphoric acid.
Further, the above-mentioned method for forming high heat conduction hydrophilic ceramic membrane in aluminium surface, wherein：Described change
The proportioning for learning oxidation solution in oxidation operation is that oxidant 0.25 to 0.85g/L, activator 0.15 to 0.25g/L, solution PH are adjusted
0.025 to 0.05 g/L of agent, 0.005 to 0.01 g/L of auxiliary agent are constituted.
Yet further, the above-mentioned method for forming high heat conduction hydrophilic ceramic membrane in aluminium surface, wherein：Described oxygen
Agent is hydrogen peroxide, Peracetic acid, ammonium persulfate, sodium hypochlorite, SODIUM PERCARBONATE, one or more in potassium perborate,
Described activator is prodan, ammonium sulfate, ammonium chloride, ferrous sulfate, one or more in ammonium hydroxide, described
Solution PH conditioning agent is NaOH, potassium hydroxide, barium hydroxide, nitric acid, sulfuric acid, boric acid, one or more in phosphoric acid,
Described auxiliary agent be sodium apolate, Sodium Polyacrylate (salt), 1,5- naphthalene disulfonic acid disodium salt hydrates, 2,6- dinitros-
The chloro- 1- hydroxy-butans sodium sulfonate of 4- trifluoromethyl benzene sulfonic acid sodium salts, 4-, 2-mercaptobenzimidazole -5- sodium sulfonate dihydrates, N,
N- DMDSs for the one kind in formamide propane sulfonic acid sodium, poly- fennel sodium sulfonate, 2- nitroaniline -4- sulfonate sodiums or
Multiple combination.
The advantage of technical solution of the present invention is mainly reflected in：Suitable for aluminium, aluminium alloy and correlated product.Can be in aluminium surface
It is 0.01 to 100 μm of high heat conduction hydrophilic ceramic membrane to form thickness, and is 0 to 30 with the contact angle of water.Also, adopt
Ceramic membrane thermal conductivity is 0.1-50 W/ (mK), and far above traditional organic hydrophilic coating, temperature tolerance is strong.Meanwhile, which is resistant to
600 degree of high temperature, it is fire-retardant, and be firmly combined with aluminium substrate, even if also not fallen off using ultrasonic wave cleaning in 30 minutes, greatly improve
Application.So, it is that space has been expanded in the technological progress of this area, implementation result is good.
The purpose of the present invention, advantage and feature, will be explained by the non-limitative illustration of preferred embodiment below.This
A little embodiments are only the prominent examples using technical solution of the present invention, all skills taken equivalent or equivalent transformation and formed
Art scheme, all falls within the scope of protection of present invention.
Specific embodiment
In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane, which is particular in that and comprises the following steps：It is first
First, oil removing operation is carried out to aluminium surface, i.e., the grease of metallic aluminum surface is removed with alkaline degreasing solution.Afterwards, carry out acid etching work
Sequence, i.e., remove the alkaline degreasing solution of the oxide layer and residual of metallic aluminum surface with acid solution.Then, chemical oxidation operation is carried out,
I.e. with the oxidation solution of certain proportioning, metallic aluminum surface is promoted to generate hydrophilic nano ceramic membrane.Afterwards, into drying process, i.e.,
The sample Jing after chemical oxidation is taken out, is dried Jing after deionized water is rinsed.Finally, high heat conduction parent is formed in aluminium surface
Water nano ceramics film.Specifically, oxidant is chiefly to facilitate the growth of nano ceramics film, thinks that oxidant concentration is too high, instead
Should be violent, film forming is fast, and membrane-coating granules is thick, and poor adhesive force, concentration are too low, and film layer is thin or even is unable to film forming.The effect of activator
Be to make aluminium surface in film forming procedure, constantly dissolved, hole is formed in nano ceramics film, it is ensured that nano ceramics film
Constantly grow up, thicken, excessive concentration, the too fast film for being formed aluminium surface of dissolution velocity are more loose, inadequate dense uniform.PH is adjusted
Section agent stablizing solution acid-base value, controls chemical reaction rate.
Just from the point of view of the preferably embodiment of the present invention one, in order to effectively remove superficial stain, especially greasy dirt, adopt
Alkaline degreasing solution ratio it is as follows, which adopts alkali lye 20 to 50g/L, phosphate 15 to 25g/L, silicate 3 to 5g/L, carbonic acid
Salt 1 is constituted to 2g/L.Specifically, for the ease of preparing, the needs of different use environments are met, alkali lye is potassium hydroxide, hydrogen
One or more in sodium oxide molybdena, calcium hydroxide, barium hydroxide.Corresponding to be, phosphate is potassium phosphate, phosphoric acid hydrogen
One or more in potassium, sodium phosphate, dibastic sodium phosphate.Meanwhile, silicate is potassium silicate, one kind in sodium metasilicate or many
Kind.Also, described carbonate is sodium carbonate, potassium carbonate, saleratus, one or more in sodium acid carbonate.In reality
When enforcement, it is contemplated that can play preferably deoiling effect, in oil removing operation, the treatment temperature for adopting is for 50 to 80
DEG C, process time is 5 to 10min, it is ensured that noresidue.
From the point of view of further, it is contemplated that follow-up processing request is met after acid etching, in acid etching operation, acid solution is strong acid, its
Consumption is 100 to 150 g/L, and temperature is 30 to 40 DEG C, and the time is 2 to 5min.Also, for the ease of preparing, reduce as far as possible
Processing cost, while the processing needs of different acid etching degree can also be met, strong acid be nitric acid, sulfuric acid, hydrochloric acid, in metaphosphoric acid
One or more.
From the point of view of further, in order to carry out appropriate oxidation, it is easy to the shaping of follow-up water nano ceramics film complete, chemical oxidation
In operation, the proportioning of oxidation solution is：Oxidant 0.25 is to 0.85g/L, activator 0.15 to 0.25g/L, solution PH conditioning agent
0.025 to 0.05 g/L, 0.005 to 0.01 g/L of auxiliary agent are constituted.From the point of view of actual preparation, it is contemplated that raw material it is replaceable
Property, oxidant be hydrogen peroxide, Peracetic acid, ammonium persulfate, sodium hypochlorite, SODIUM PERCARBONATE, the one kind in potassium perborate or
It is various.Meanwhile, activator is prodan, ammonium sulfate, ammonium chloride, ferrous sulfate, one or more in ammonium hydroxide.And
And, effectively being adjusted to play PH numerical value as needed, solution PH conditioning agent is NaOH, potassium hydroxide, hydrogen-oxygen
Change barium, nitric acid, sulfuric acid, boric acid, one or more in phosphoric acid.Furthermore, it is contemplated that the use demand of different auxiliary agents is different,
Auxiliary agent of the present invention employed in preparation process is sodium apolate, Sodium Polyacrylate (salt), 1,5- naphthalenedisulfonic acid disodiums
Salt hydrate, 2,6- dinitro -4- trifluoromethyl benzene sulfonic acid sodium salts, the chloro- 1- hydroxy-butans sodium sulfonates of 4-, 2-mercaptobenzimidazole -
5- sodium sulfonate dihydrates, N, N- DMDSs are for formamide propane sulfonic acid sodium, poly- fennel sodium sulfonate, 2- nitroaniline -4-
One or more combinations in sulfonate sodium.
Specifically, for one or more in azochlorosulfonate acid compound, azochlorosulfonate acid compound is a kind of tool to the auxiliary agent that adopts of the present invention
There is the water-soluble polymer of unique effect, the sulfonic acid group on macromolecular chain so as to very strong infiltration peptizaiton.By
This, during the uniform dispersion of oxidant, activator, PH conditioning agents and solution can be made.Also, the reason for why using azochlorosulfonate acid compound
It is that its water solubility makes its viscosity to chemical oxidation liquid have certain adjustment effect, it is possible to decrease solution mobility.Thus may be used
See, enable to oxidant, activator and be dispersed in metallic aluminum surface, while making metallic aluminum surface fill with chemical oxidation solution
Tap is touched, so as to promote the homoepitaxial of nano ceramic film.Appropriate sulfonated bodies can be made between aluminium surface and chemical oxidation liquid
Interface state occur significantly to change, by different piece in molecule respectively for the affine of two-phase, two-phase is seen
Make the composition of this phase, as two-phase is all regarded as a component of this phase, be equivalent to two phases and surfactant molecule
Interface is not all formed, the interface of two phases of the elimination of part in this way is equivalent to, is just reduced surface tension
And surface free energy, which effectively raises the hydrophily of nano ceramics film.
Also, in view of different oxidation technology demands, in chemical oxidation operation, the oxidization time for adopting for 5 to
10min, oxidizing temperature are 50 to 90 DEG C.Also, in order to play necessary drying, it is ensured that in drying process, by being positioned over
It is dried in baking oven, and baking temperature is 90-110 DEG C.Certainly, found after multiple comparison test, baking temperature is 100
DEG C can play preferably effect.
" embodiment one "
In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane, its processing mode is as follows：First, aluminium surface is entered
Row oil removing operation, i.e., remove the grease of metallic aluminum surface with alkaline degreasing solution.Afterwards, acid etching operation is carried out, i.e., is removed with acid solution
Remove the alkaline degreasing solution of the oxide layer and residual of metallic aluminum surface.Then, chemical oxidation operation is carried out, i.e., with certain proportioning
Oxidation solution, promotes metallic aluminum surface to generate hydrophilic nano ceramic membrane.Afterwards, into drying process, that is, Jing chemical oxidations are taken out
Sample afterwards, is dried Jing after deionized water is rinsed.Finally, high heat conduction hydrophilic ceramic membrane is formed in aluminium surface.
Specifically, the alkaline degreasing solution ratio that the present embodiment is adopted is as follows, and which adopts alkali lye for 20 g/L, phosphate
15 g/L, 3 g/L of silicate, 1 g/L of carbonate are constituted.Meanwhile, alkali lye is potassium hydroxide, and phosphate is potassium phosphate, silicate
For potassium silicate, carbonate is sodium carbonate.In oil removing operation, the treatment temperature for adopting is 50 DEG C, and process time is 5min.
Meanwhile, in acid etching operation, acid solution is strong acid, and its consumption is 100 g/L, and for 30 to DEG C, the time is 2 to temperature
min.Also, for the ease of preparing, strong acid is nitric acid.
In order to carry out appropriate oxidation, in chemical oxidation operation, the proportioning of oxidation solution is：0.25 g/L of oxidant, activator
0.15 g/L, 0.025 g/L of solution PH conditioning agent, 0.005 g/L of auxiliary agent are constituted.From the point of view of actual preparation, it is contemplated that raw material
Replaceability, oxidant is hydrogen peroxide, and activator is prodan.Also, solution PH conditioning agent is NaOH, is adopted
Auxiliary agent be sodium apolate,.
Also, in view of different oxidation technology demands, in chemical oxidation operation, the oxidization time for adopting for 5min,
Oxidizing temperature is 50 DEG C.It is dried by being positioned in baking oven, and baking temperature is 90 DEG C.
" embodiment two "
In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane, its processing mode is as follows：First, aluminium surface is entered
Row oil removing operation, i.e., remove the grease of metallic aluminum surface with alkaline degreasing solution.Afterwards, acid etching operation is carried out, i.e., is removed with acid solution
Remove the alkaline degreasing solution of the oxide layer and residual of metallic aluminum surface.Then, chemical oxidation operation is carried out, i.e., with certain proportioning
Oxidation solution, promotes metallic aluminum surface to generate hydrophilic nano ceramic membrane.Afterwards, into drying process, that is, Jing chemical oxidations are taken out
Sample afterwards, is dried Jing after deionized water is rinsed.Finally, high heat conduction hydrophilic ceramic membrane is formed in aluminium surface.
Specifically, the alkaline degreasing solution ratio that the present embodiment is adopted is as follows, and which adopts alkali lye for 50 g/L, phosphate
25 g/L, silicate 5g/L, 2 g/L of carbonate compositions.Meanwhile, alkali lye is NaOH, and phosphate is potassium hydrogen phosphate, silicate
For sodium metasilicate, carbonate is saleratus.In oil removing operation, the treatment temperature for adopting is 80 DEG C, and process time is 10min.
Meanwhile, in acid etching operation, acid solution is strong acid, and its consumption is 150 g/L, and for 40 to DEG C, the time is 5 to temperature
min.Also, for the ease of preparing, strong acid is sulfuric acid.
In order to carry out appropriate oxidation, in chemical oxidation operation, the proportioning of oxidation solution is：0.85 g/L of oxidant, activator
0.25 g/L, 0.05 g/L of solution PH conditioning agent, 0.01 g/L of auxiliary agent are constituted.From the point of view of with reference to actual preparation, it is contemplated that raw material
Replaceability, oxidant are Peracetic acid, and activator is ammonium chloride.Also, solution PH conditioning agent is barium hydroxide, employing is helped
Agent is 1,5- naphthalene disulfonic acid disodium salt hydrates.
Also, in view of different oxidation technology demands, in chemical oxidation operation, the oxidization time for adopting for 10min,
Oxidizing temperature is 90 DEG C.It is dried by being positioned in baking oven, and baking temperature is 110 DEG C.
" embodiment three "
In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane, the processing mode for being adopted is as follows：First, to aluminium
Surface carries out oil removing operation, i.e., the grease of metallic aluminum surface is removed with alkaline degreasing solution.Afterwards, acid etching operation is carried out, that is, is used
Acid solution removes the alkaline degreasing solution of the oxide layer and residual of metallic aluminum surface.Then, chemical oxidation operation is carried out, i.e., with certain
The oxidation solution of proportioning, promotes metallic aluminum surface to generate hydrophilic nano ceramic membrane.Afterwards, into drying process, that is, take out Jingization
The sample after oxidation is learned, is dried Jing after deionized water is rinsed.Finally, high heat conduction hydrophilic pottery is formed in aluminium surface
Porcelain film.
Specifically, the alkaline degreasing solution ratio that the present embodiment is adopted is as follows, and which adopts alkali lye for 30 g/L, phosphate
20 g/L, silicate 4g/L, 1.5 g/L of carbonate compositions.Meanwhile, alkali lye is calcium hydroxide, and phosphate is sodium phosphate, silicate
For sodium metasilicate, carbonate is sodium metasilicate.In oil removing operation, the treatment temperature for adopting is 70 DEG C, and process time is 9min.
Meanwhile, in acid etching operation, acid solution is strong acid, and its consumption is 120 g/L, and for 35 to DEG C, the time is 4 to temperature
min.Also, for the ease of preparing, strong acid is hydrochloric acid.
In order to carry out appropriate oxidation, in chemical oxidation operation, the proportioning of oxidation solution is：0.7 g/L of oxidant, activator 0.2
G/L, 0.03 g/L of solution PH conditioning agent, 0.009 g/L of auxiliary agent are constituted.From the point of view of actual the preparation, it is contemplated that raw material is replaced
Transsexual, oxidant is ammonium persulfate, and activator is ferrous sulfate.Also, solution PH conditioning agent is nitric acid, and the auxiliary agent for adopting is poly-
Fennel sodium sulfonate.
Also, in view of different oxidation technology demands, in chemical oxidation operation, the oxidization time for adopting for 8min,
Oxidizing temperature is 60 DEG C.It is dried by being positioned in baking oven, and baking temperature is 100 DEG C.
By above-mentioned character express can be seen that using the present invention after, can aluminium surface formed thickness be 0.01 to
100 μm of high heat conduction hydrophilic ceramic membrane, and be 0 to 30 with the contact angle of water.Also, the ceramic membrane thermal conductivity for adopting
For 0.1-50 W/ (mK), far above traditional organic hydrophilic coating, temperature tolerance is strong.Meanwhile, which is resistant to 800 degree of high temperature, fire-retardant,
And be firmly combined with aluminium substrate, even if also not falling off using ultrasonic wave cleaning in 30 minutes, greatly improve application.
What is more important, can be regulated and controled in chemical oxidation operation by the method for the present invention and be aoxidized in chemical oxidation solution
The high heat conduction hydrophilic ceramics film thickness obtained by agent, activator, PH conditioning agents, auxiliary agent content and oxidizing temperature, time is equal
Even, hydrophily is strong, and adhesive force is strong and corrosion resistance is strong.
Claims (4)
1. the method for forming high heat conduction hydrophilic ceramic membrane in aluminium surface, it is characterised in that comprise the following steps：
1. step, carries out oil removing operation, i.e., the grease of metallic aluminum surface is removed with alkaline degreasing solution to aluminium surface；
2., acid etching operation removes the alkaline degreasing solution of the oxide layer and residual of metallic aluminum surface to step with acid solution；
3., chemical oxidation operation, that is, with the oxidation solution of certain proportioning, promotes metallic aluminum surface to generate hydrophilic nano ceramics to step
Film；
4., drying process takes out the sample Jing after chemical oxidation, is dried, most Jing after deionized water is rinsed step
High heat conduction hydrophilic ceramic membrane is formed in aluminium surface eventually；In described chemical oxidation operation, the proportioning of oxidation solution is, oxidant
0.25 to 0.85g/L, activator 0.15 to 0.25g/L, 0.025 to 0.05 g/L of solution pH adjusting agent, auxiliary agent 0.005
Constitute to 0.01 g/L；In described oil removing operation, the treatment temperature for adopting for 50 to 80 DEG C, process time be 5 to
10min；
In described acid etching operation, acid solution is strong acid, and consumption is 100 to 150 g/L, and temperature is 30 to 40 DEG C, and the time is 2
To 5min；
Described strong acid is nitric acid, sulfuric acid, hydrochloric acid, one or more in metaphosphoric acid；
Described oxidant be hydrogen peroxide, Peracetic acid, ammonium persulfate, sodium hypochlorite, SODIUM PERCARBONATE, in potassium perborate one
Kind or it is various, described activator be prodan, ammonium sulfate, ammonium chloride, ferrous sulfate, the one kind in ammonium hydroxide or
It is various, described solution pH adjusting agent be NaOH, potassium hydroxide, barium hydroxide, nitric acid, sulfuric acid, boric acid, in phosphoric acid
One or more, described auxiliary agent be sodium apolate, 1,5- naphthalene disulfonic acid disodium salt hydrates, 2,6- dinitros-
The chloro- 1- hydroxyls-sodium butane sulfonate of 4- trifluoromethyl benzene sulfonic acid sodium salts, 4-, 2- mercaptobenzimidazole -5- sodium sulfonates two are hydrated
Thing, N, N- DMDSs are in formamide propane sulfonic acid sodium, poly- fennel sodium sulfonate, 2- nitroaniline -4- sulfonate sodiums
One or more combinations.
2. according to claim 1 aluminium surface formed high heat conduction hydrophilic ceramic membrane method, it is characterised in that：
Described alkaline degreasing solution by alkali lye 20 to 50g/L, phosphate 15 to 25g/L, silicate 3 to 5g/L, carbonate 1 to
2g/L is constituted, wherein, described alkali lye is potassium hydroxide, NaOH, calcium hydroxide, one kind in barium hydroxide or many
Kind, described phosphate is potassium phosphate, potassium hydrogen phosphate, sodium phosphate, one or more in dibastic sodium phosphate, described silicate
For one or more in potassium silicate, sodium metasilicate, described carbonate is sodium carbonate, potassium carbonate, saleratus, sodium acid carbonate
In one or more.
3. according to claim 1 aluminium surface formed high heat conduction hydrophilic ceramic membrane method, it is characterised in that：
In described chemical oxidation operation, for 5 to 10min, oxidizing temperature is 50 to 90 DEG C to the oxidization time for adopting.
4. according to claim 1 aluminium surface formed high heat conduction hydrophilic ceramic membrane method, it is characterised in that：
In described drying process, it is dried in being positioned over baking oven, and baking temperature is 90-110 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510045135.4A CN104630756B (en) | 2015-01-29 | 2015-01-29 | In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510045135.4A CN104630756B (en) | 2015-01-29 | 2015-01-29 | In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104630756A CN104630756A (en) | 2015-05-20 |
| CN104630756B true CN104630756B (en) | 2017-04-05 |
Family
ID=53209990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510045135.4A Active CN104630756B (en) | 2015-01-29 | 2015-01-29 | In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104630756B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624759B (en) * | 2015-12-30 | 2018-02-16 | 苏州容电储能科技有限公司 | Ceramic membrane with capillary structure and super dehumidifier wetting property and preparation method thereof |
| KR102101180B1 (en) * | 2019-09-06 | 2020-04-16 | 농업회사법인(유)부령산업 | Treatment Method of Aluminum Dust using Oxidizing Agent and Solidifying Agent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124303A (en) * | 1994-03-24 | 1996-06-12 | 日本帕卡濑精株式会社 | Aqueous composition and solution and process for metallic surface-treating an aluminum-containing metal material |
| CN101139708A (en) * | 2007-10-17 | 2008-03-12 | 陈东初 | Transformation liquid for preparation of corrosion-resistant oxidation film on aluminium alloy surface and method of use thereof |
| CN102465286A (en) * | 2010-11-15 | 2012-05-23 | 广州市泓硕环保科技有限公司 | Composition for anti-corrosion treatment, corrosion-resistant material and preparation method of the corrosion-resistant material |
| CN104178773A (en) * | 2014-08-20 | 2014-12-03 | 山东宝龙达实业集团有限公司 | Chromium-free environmental-friendly silicon-contained aluminum and aluminum alloy surface treating agent and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3409471B2 (en) * | 1994-11-22 | 2003-05-26 | 松文 高谷 | Surface treatment method for aluminum-based metal materials |
-
2015
- 2015-01-29 CN CN201510045135.4A patent/CN104630756B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124303A (en) * | 1994-03-24 | 1996-06-12 | 日本帕卡濑精株式会社 | Aqueous composition and solution and process for metallic surface-treating an aluminum-containing metal material |
| CN101139708A (en) * | 2007-10-17 | 2008-03-12 | 陈东初 | Transformation liquid for preparation of corrosion-resistant oxidation film on aluminium alloy surface and method of use thereof |
| CN102465286A (en) * | 2010-11-15 | 2012-05-23 | 广州市泓硕环保科技有限公司 | Composition for anti-corrosion treatment, corrosion-resistant material and preparation method of the corrosion-resistant material |
| CN104178773A (en) * | 2014-08-20 | 2014-12-03 | 山东宝龙达实业集团有限公司 | Chromium-free environmental-friendly silicon-contained aluminum and aluminum alloy surface treating agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104630756A (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4685102B2 (en) | Method for passivating metal surfaces using polymers with acidic groups | |
| CN102137956B (en) | Process for production of aluminum wheel | |
| CN104630756B (en) | In the method that aluminium surface forms high heat conduction hydrophilic ceramic membrane | |
| JP2015004136A (en) | Method for forming a corrosion resistant film on a zinc metal surface | |
| CN103249870A (en) | Etching agent for aluminium and aluminium alloys | |
| JPH0448875B2 (en) | ||
| JP5520439B2 (en) | Method for producing surface-adjusted aluminum casting | |
| CN103084321A (en) | Preparation process for nanometer perfluorocarbon composite coating | |
| JP5196784B2 (en) | Method for forming a surface-modified workpiece | |
| JP5566835B2 (en) | Coating composition and aluminum fin material using the same | |
| WO2009138022A1 (en) | A composition for conversion coating a zinciferous metal substrate, a method for treating a zinciferous metal substrate, a treated zinciferous metal substrate and its use | |
| JP2017066515A (en) | Steel wire excellent in corrosion resistance and appearance after working | |
| CN116065146A (en) | Method for cleaning electrolyte of engine | |
| EP2712331B1 (en) | A process of electrolytic galvanizing with an enhanced anti-corrosive protection | |
| CN109627815A (en) | A kind of corrosion resistant nano coating and preparation method thereof | |
| CN1069295A (en) | Metal normal temperature blackening process without energy source | |
| CN101182639A (en) | Steel phosphating liquid containing magnesium and nickel and phosphating method thereof | |
| JP4936781B2 (en) | Method for producing weathering steel | |
| CN107723721A (en) | A kind of method of aluminum alloy chemically oil removing | |
| JP3331156B2 (en) | Aluminum coating material | |
| CN107159544A (en) | Electrostatic plastic spraying preparation method for hardware | |
| JPS5896876A (en) | Formation of wear and corrosion resistant film on metallic material | |
| BR112021015074A2 (en) | PROCESS FOR PRE-TREATMENT OF METALLIC SUBSTRATES FOR COLD FORMING, ACID REACTIVE LUBRICANT, CONCENTRATED, PRE-TREATED METALLIC SUBSTRATE, AND, USE OF METALLIC SUBSTRATE | |
| JP5424555B2 (en) | Method for forming corrosion-resistant film on zinc metal surface | |
| JP2012215410A (en) | Corrosion resistance testing method for copper-based member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |