CN108841323A - A kind of steel silane finish - Google Patents
A kind of steel silane finish Download PDFInfo
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- CN108841323A CN108841323A CN201810568145.XA CN201810568145A CN108841323A CN 108841323 A CN108841323 A CN 108841323A CN 201810568145 A CN201810568145 A CN 201810568145A CN 108841323 A CN108841323 A CN 108841323A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses steel silane finish, belong to steel surface processing technology field.With butyl titanate, ferrous sulfate monohydrate, maleic anhydride etc., for raw material, the resistance to corrosion of steel can be improved in the present invention, changes silane component to the film-formation result of steel surface, improves resistance to corrosion；Citric acid used can be complexed with iron ion, iron chloride and the iron of steel surface react, frerrous chloride a part of generation can adhere to the reducing agent that steel surface makees oxygen in air, the iron of oxygen and steel surface in air is avoided to be in contact and be oxidized, to improve the antioxygenic property of steel；With alginic acid, nano-alpha aluminium oxide, dopamine solution etc. for raw material, as the carrier of other active constituents, the filming performance of intensive treatment agent system improves the resistance to corrosion of steel.It is poor for current common steel silane finish film forming that the present invention is solved, the not strong problem of corrosion resistance.
Description
Technical field
The invention belongs to steel surface processing technology fields, and in particular to a kind of steel silane finish.
Background technique
Durings transporting and storing and use etc., various forms of corrosion easily occur most of steel-products for surface,
The atmospheric corrosion of various rust stainings is especially formed, these corrosion can seriously affect the quality of steel and thus product is made in steel
Quality.Although the rust staining that steel surface corrosion generates, to remove from steel matrix, usually time-consuming and goes back for these methods
The intensity of steel can be reduced.Steel occur the main reason for electrochemical corrosion first is that due to steel surface and electrolyte solution or
It is contacted with moist atmosphere, and then generates various corrosion galvanic cells and corrosion is generated to steel.It accordingly, can be by changing steel table
Steel surface is isolated with corrosive environment in surface state, to prevent the generation of corrosion.In steel surface processing, traditional phosphate
Conversion is remarkably improved the corrosion resistance of steel, is widely used in the industrial circles such as machining, automobile, aviation, but with section
The development of skill and the maturation of technique, phosphatization is because containing the weight steel ion such as zinc, manganese, nickel and a large amount of phosphate anion, to environment
Serious pollution is caused, and promotor nitrite also has carcinogenesis, easily generates harm to human body.With environmentally friendly cry
It is surging, there is an urgent need to research and develop the surface treating agent of function admirable, wherein steel surface silane finish, because having anti-corrosive properties
Good, the energy saving, advantages of environment protection of energy, has good economic benefits and social benefit, is widely used.Silane finish is one
The inorganic agent that kind handles steel surface does not generate sediment during use, and the processing time is compared to more traditional
Phosphorating treatment will shorten many.When control silane finish is handled, tank liquor is reusable, and then increases at silane
The economic benefit of agent is managed, while silane finish is also equipped with the effect effectively improved You Qi to steel surface adhesive force.At silane
Reason technology is a kind of novel steel surface processing technique, is mainly combined by forming covalent bond with steel, silane treatment
Heavy metal and phosphate anion are free of in agent, without heating, low energy consumption, and short processing time, easy to operate, has good
Development prospect.
Summary of the invention
The technical problems to be solved by the invention：Poor, the corrosion resistance for current common steel silane finish film forming
Not strong problem provides a kind of steel silane finish.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of steel silane finish includes following component according to the mass fraction：15 ~ 30 parts of propyl trimethoxy silicanes, 20 ~ 30
Part Silane coupling agent KH550,10 ~ 15 parts of auxiliary agents, 5 ~ 8 parts of surfactants, 3 ~ 6 parts of solubilizer, 2 ~ 5 parts of viscosity-controlling agents, 30 ~
50 parts of water, which is characterized in that further include 30 ~ 50 parts of silane adjuvants, 15 ~ 25 parts of alginic acid compounds.
The preparation method of the silane adjuvant, includes the following steps：
（1）In mass ratio 1：3：2：6 ~ 8 take butyl titanate, H2SO4、H2O2, water be mixed, stand, obtain pretreatment fluid, take
Pretreatment fluid in mass ratio 1：1 ~ 2 is added dopamine solution, oscillating reactions, and ultrasonication obtains dispersion liquid, dispersion liquid is taken to rotate
Evaporation, is concentrated under reduced pressure into the 20 ~ 30% of original volume, obtains concentrate；
（2）Take ferrous sulfate monohydrate in mass ratio 1：6 ~ 10 are added distilled water, are stirred in 20 ~ 25 DEG C, and sulfuric acid monohydrate is added
The aluminium oxide of 2 ~ 3 times of ferrous quality is warming up to 30 ~ 35 DEG C of 1 ~ 2h of heat preservation, obtains mixture, take mixture in mass ratio 4：1 ~ 2 adds
Enter concentrate mixing, adds the sodium dihydrogen phosphate of mixture quality 20 ~ 30%, in 70 ~ 75 DEG C of 2 ~ 4h of heat preservation, obtain mixed matrix
Object takes mixed matrix object in mass ratio 5：2 are added sodium bicarbonate, stand, dry, obtain dried object；
（3）Take maleic anhydride in mass ratio 1：10 ~ 15 are added sodium hydroxide solution mixing, are stirred, add in 40 ~ 45 DEG C
The sodium molybdate of maleic anhydride quality 2 ~ 5% and the mixing of the citric acid solution of maleic anhydride quality 5 ~ 8%, in 55 ~ 65 DEG C of 1 ~ 2h of heat preservation,
Obtain just processing solution, according to the mass fraction, processing solution, 10 ~ 15 parts of boron trifluoride ether, 5 ~ 10 part 1,3- at the beginning of taking 10 ~ 15 parts
Butadiene, 2 ~ 5 parts of ammonium persulfates, 3 ~ 8 parts of sodium acetates, 4 ~ 10 parts of trialkylaluminiums, are stirred 3 ~ 4h in 80 ~ 85 DEG C, obtain silane
Adjuvant.
The preparation method of the alginic acid compound, includes the following steps：
S1. in mass ratio 1：5 ~ 10 take sodium alginate and water to be mixed, and stand, are added 0.2 ~ 0.8 times of sodium alginate quality
Na2CO3, 2 ~ 5 times of sodium alginate quality of dehydrated alcohol, be stirred, obtain matrix；
It S2. is in mass ratio 1：10 ~ 15 take nano-alpha aluminium oxide and dehydrated alcohol to mix, and dehydrated alcohol matter is added in ultrasonic disperse
The dopamine solution of 0.1 ~ 0.5 times of amount, ultrasonic disperse obtain nano-alpha aluminium oxide dispersion liquid；
S3. in 50 ~ 60 DEG C, in mass ratio 2：3~5：4：0.1 takes Fe3O4Colloid, matrix, nano-alpha aluminium oxide dispersion liquid, CaCl2
It is mixed, obtains mixed liquor, 5 ~ 10% crosslinking agent that mixed liquor quality is added is handled to get alginic acid compound.
The auxiliary agent：In mass ratio 1：2：4 ~ 7 take FeCl3, citric acid, water mixing to get auxiliary agent.
The surfactant：In mass ratio 4：1 ~ 2 takes laureth sodium sulfovinate, neopelex mixed
It closes to get surfactant.
The viscosity-controlling agent：Polyethylene wax, cyclohexanol, urea, any one in husky rope wax.
The solubilizer：Emulsifier EL-60, fatty alcohol polyoxyethylene ether, any one in sodium secondary alkyl sulfonate.
Crosslinking agent in the step S3：In mass ratio 2：0.1：15 ~ 20 take Geniposide, CaCl2, dehydrated alcohol mixing to get crosslinking
Agent.
The present invention is compared with other methods, and advantageous effects are：
（1）For the present invention with butyl titanate, ferrous sulfate monohydrate, maleic anhydride etc. for raw material, steel are can be improved in silane adjuvant processed
Resistance to corrosion, change silane component to the film-formation result of steel surface, so that the capillary force that steel surface combines is greater than
The resistance ability of base-material particle itself is packed together, simultaneously each other since base-material filler rigid reduces after colliding between particle
Modification under the action of capillary force, as the micro-moisture inside matrix particle slowly volatilizees with auxiliary agent, silane auxiliary material enters
Particle edges fusion, preferably form a film to steel protection, improves resistance to corrosion；
（2）Citric acid used in the present invention can be complexed with iron ion, be allowed to slow release, the iron generation of iron chloride and steel surface
Reaction generates frerrous chloride, and frerrous chloride a part of generation can adhere to the reducing agent that steel surface makees oxygen in air again,
The iron of oxygen and steel surface in air is avoided to be in contact and be oxidized, to improve the antioxygenic property of steel；With sea
Alginic acid, nano-alpha aluminium oxide, dopamine solution etc. are raw material, and the basis material of crosslinked obtained high interface compatibility can be used as
The carrier of other active constituents, the filming performance of intensive treatment agent system, improves the resistance to corrosion of steel.
Specific embodiment
Auxiliary agent：In mass ratio 1：2：4 ~ 7 take FeCl3, citric acid, water mixing to get auxiliary agent.
Solubilizer：Emulsifier EL-60, fatty alcohol polyoxyethylene ether, any one in sodium secondary alkyl sulfonate.
Surfactant：In mass ratio 4：1 ~ 2 takes laureth sodium sulfovinate, neopelex mixing, i.e.,
Obtain surfactant.
Viscosity-controlling agent：Polyethylene wax, cyclohexanol, urea, any one in husky rope wax.
The preparation method of silane adjuvant, includes the following steps：
（1）In mass ratio 1：3：2：6 ~ 8 take butyl titanate, H2SO4、H2O2, water be mixed, stand 3 ~ 5h, must pre-process
Liquid takes pretreatment fluid in mass ratio 1：The dopamine solution that 1 ~ 2 addition concentration is 2g/L, oscillating reactions 20 ~ for 24 hours, at ultrasonic wave
10 ~ 15min is managed, dispersion liquid is obtained, takes dispersion liquid rotary evaporation, be concentrated under reduced pressure into the 20 ~ 30% of original volume, obtain concentrate；
（2）Take ferrous sulfate monohydrate in mass ratio 1：6 ~ 10 are added distilled water, and 2 ~ 3h is stirred in 20 ~ 25 DEG C, and a water is added
The aluminium oxide that 2 ~ 3 times of ferrous sulfate quality is warming up to 30 ~ 35 DEG C of 1 ~ 2h of heat preservation, obtains mixture, take mixture in mass ratio 4：1~
2 are added concentrate mixing, add the sodium dihydrogen phosphate of mixture quality 20 ~ 30%, in 70 ~ 75 DEG C of 2 ~ 4h of heat preservation, obtain mixed base
Body object takes mixed matrix object in mass ratio 5：2 addition sodium bicarbonates, standing 18 ~ for 24 hours, it is dry, obtain dried object；
（3）Take maleic anhydride in mass ratio 1：10 ~ 15 are added the sodium hydroxide solution mixing of concentration 0.01mol/L, in 40 ~ 45 DEG C
It is stirred 2 ~ 3h, the mass fraction of the sodium molybdate and maleic anhydride quality 5 ~ 8% that add maleic anhydride quality 2 ~ 5% is 30%
Citric acid solution mixing, in 55 ~ 65 DEG C of 1 ~ 2h of heat preservation, obtain just processing solution, according to the mass fraction, at the beginning of taking 10 ~ 15 parts handle
Solution, 10 ~ 15 parts of boron trifluoride ether, 5 ~ 10 parts of 1,3-butadienes, 2 ~ 5 parts of ammonium persulfates, 3 ~ 8 parts of sodium acetates, 4 ~ 10 part three
Alkyl aluminum is stirred 3 ~ 4h in 80 ~ 85 DEG C, obtains silane adjuvant.
The preparation method of alginic acid compound, includes the following steps：
S1. in mass ratio 1：5 ~ 10 take sodium alginate to mix with water, stir 30 ~ 50min with 220 ~ 250r/min, stand 2 ~ 4h,
0.2 ~ 0.8 times of sodium alginate quality of Na is added2CO3, 2 ~ 5 times of sodium alginate quality of dehydrated alcohol, be stirred, obtain matrix；
It S2. is in mass ratio 1：10 ~ 15 take nano-alpha aluminium oxide and dehydrated alcohol to mix, with supersonic frequency for 45 ~ 50kHz condition
Under, it is molten for the dopamine of 2.5g/L to add 0.1 ~ 0.5 times of dehydrated alcohol quality of mass concentration by 15 ~ 20min of ultrasonic disperse
Liquid, 10 ~ 15min of ultrasonic disperse obtain nano-alpha aluminium oxide dispersion liquid；
S3. in 50 ~ 60 DEG C, in mass ratio 2：3~5：4：0.1 takes Fe3O4Colloid, matrix, nano-alpha aluminium oxide dispersion liquid, CaCl2
30 ~ 50min is stirred in mixing, obtains mixed liquor, and 5 ~ 10% crosslinking agent that mixed liquor quality is added handles 30 ~ 40min to get seaweed
Sour compound.
Crosslinking agent：In mass ratio 2：0.1：15 ~ 20 take Geniposide, Cacl2, dehydrated alcohol mixing to get crosslinking agent.
A kind of preparation method of steel silane finish, includes the following steps：
（1）According to the mass fraction, 15 ~ 30 parts of propyl trimethoxy silicanes, 20 ~ 30 parts of Silane coupling agent KH550s, 10 ~ 15 parts are taken
Auxiliary agent, 5 ~ 8 parts of surfactants, 3 ~ 6 parts of solubilizer, 2 ~ 5 parts of viscosity-controlling agents, 30 ~ 50 parts of water, 30 ~ 50 parts of silane adjuvants, 15
~ 25 parts of alginic acid compounds；
（2）Prior to 35 ~ 50 DEG C, surfactant, solubilizer, viscosity-controlling agent, water is taken to mix in blender, with 220 ~ 250r/
Min stirs 30 ~ 40min, adds silane adjuvant, alginic acid compound, propyl trimethoxy silicane, Silane coupling agent KH550
Mixing, ultrasonic wave disperse 10 ~ 15min to get steel silane finish.
Embodiment 1
Auxiliary agent：In mass ratio 1：2：4 take FeCl3, citric acid, water mixing to get auxiliary agent.
Solubilizer：Emulsifier EL-60, fatty alcohol polyoxyethylene ether, any one in sodium secondary alkyl sulfonate.
Surfactant：In mass ratio 4：1 take laureth sodium sulfovinate, neopelex mixing to get
Surfactant.
Viscosity-controlling agent：Polyethylene wax, cyclohexanol, urea, any one in husky rope wax.
The preparation method of silane adjuvant, includes the following steps：
（1）In mass ratio 1：3：2：6 take butyl titanate, H2SO4、H2O2, water be mixed, stand 3h, obtain pretreatment fluid, take
Pretreatment fluid in mass ratio 1：1 is added the dopamine solution that concentration is 2g/L, and oscillating reactions 20h, ultrasonication 10min are obtained
Dispersion liquid takes dispersion liquid rotary evaporation, is concentrated under reduced pressure into the 20% of original volume, obtains concentrate；
（2）Take ferrous sulfate monohydrate in mass ratio 1：6 are added distilled water, and 2h is stirred in 20 DEG C, and ferrous sulfate monohydrate is added
The aluminium oxide that 2 times of quality is warming up to 30 DEG C of heat preservation 1h, obtains mixture, take mixture in mass ratio 4：1 is added concentrate mixing,
The sodium dihydrogen phosphate for adding mixture quality 20% obtains mixed matrix object, takes mixed matrix object by quality in 70 DEG C of heat preservation 2h
Than 5：2 are added sodium bicarbonate, stand 18h, dry, obtain dried object；
（3）Take maleic anhydride in mass ratio 1：10 are added the sodium hydroxide solution mixing of concentration 0.01mol/L, mixed in 40 DEG C of stirrings
2h is closed, the citric acid solution that the mass fraction of the sodium molybdate and maleic anhydride quality 5% that add maleic anhydride quality 2% is 30%
Mixing obtains just processing solution, according to the mass fraction, processing solution, 10 parts of boron trifluoride second at the beginning of taking 10 parts in 55 DEG C of heat preservation 1h
Ether, 5 parts of 1,3-butadienes, 2 parts of ammonium persulfates, 3 parts of sodium acetates, 4 parts of trialkylaluminiums, are stirred 3h in 80 DEG C, it is auxiliary to obtain silane
Agent.
The preparation method of alginic acid compound, includes the following steps：
S1. in mass ratio 1：5 take sodium alginate to mix with water, stir 30min with 220r/min, stand 2h, sodium alginate is added
The Na that 0.2 times of quality2CO3, 2 times of sodium alginate quality of dehydrated alcohol, be stirred, obtain matrix；
It S2. is in mass ratio 1：10 take nano-alpha aluminium oxide and dehydrated alcohol to mix, and under the conditions of being 45kHz with supersonic frequency, surpass
Sound disperses 15min, the dopamine solution that the mass concentration for adding 0.1 times of dehydrated alcohol quality is 2.5g/L, ultrasonic disperse
10min obtains nano-alpha aluminium oxide dispersion liquid；
S3. in 50 DEG C, in mass ratio 2：3：4：0.1 takes Fe3O4Colloid, matrix, nano-alpha aluminium oxide dispersion liquid, CaCl2Mixing,
30min is stirred, mixed liquor is obtained, the 5% crosslinking agent processing 30min of mixed liquor quality is added to get alginic acid compound.
Crosslinking agent：In mass ratio 2：0.1：15 take Geniposide, Cacl2, dehydrated alcohol mixing to get crosslinking agent.
A kind of preparation method of steel silane finish, includes the following steps：
（1）According to the mass fraction, 15 parts of propyl trimethoxy silicanes, 20 parts of Silane coupling agent KH550s, 10 parts of auxiliary agents, 5 parts of tables are taken
Face activating agent, 3 parts of solubilizer, 2 parts of viscosity-controlling agents, 30 parts of water, 30 parts of silane adjuvants, 15 parts of alginic acid compounds；
（2）Prior to 35 DEG C, takes surfactant, solubilizer, viscosity-controlling agent, water to mix in blender, stirred with 220r/min
30min adds silane adjuvant, alginic acid compound, propyl trimethoxy silicane, Silane coupling agent KH550 mixing, ultrasonic wave
Disperse 10min to get steel silane finish.
Embodiment 2
Auxiliary agent：In mass ratio 1：2：6 take FeCl3, citric acid, water mixing to get auxiliary agent.
Solubilizer：Emulsifier EL-60, fatty alcohol polyoxyethylene ether, any one in sodium secondary alkyl sulfonate.
Surfactant：In mass ratio 4：1.5 take laureth sodium sulfovinate, neopelex mixing, i.e.,
Obtain surfactant.
Viscosity-controlling agent：Polyethylene wax, cyclohexanol, urea, any one in husky rope wax.
The preparation method of silane adjuvant, includes the following steps：
（1）In mass ratio 1：3：2：7 take butyl titanate, H2SO4、H2O2, water be mixed, stand 4h, obtain pretreatment fluid, take
Pretreatment fluid in mass ratio 1：The dopamine solution that 1.5 addition concentration are 2g/L, oscillating reactions 22h, ultrasonication 13min,
Dispersion liquid is obtained, dispersion liquid rotary evaporation is taken, is concentrated under reduced pressure into the 25% of original volume, obtains concentrate；
（2）Take ferrous sulfate monohydrate in mass ratio 1：8 are added distilled water, and 2.5h is stirred in 23 DEG C, and it is sub- that sulfuric acid monohydrate is added
The aluminium oxide that 2.5 times of weight of iron is warming up to 33 DEG C of heat preservation 1.5h, obtains mixture, take mixture in mass ratio 4：1.5 are added concentration
Liquid mixing, adds the sodium dihydrogen phosphate of mixture quality 25%, in 73 DEG C of heat preservation 3h, obtains mixed matrix object, take mixed matrix object
In mass ratio 5：2 are added sodium bicarbonate, stand 21h, dry, obtain dried object；
（3）Take maleic anhydride in mass ratio 1：13 are added the sodium hydroxide solution mixing of concentration 0.01mol/L, mixed in 43 DEG C of stirrings
2.5h is closed, the citric acid that the mass fraction of the sodium molybdate and maleic anhydride quality 7% that add maleic anhydride quality 4% is 30% is molten
Liquid mixing obtains just processing solution, according to the mass fraction, processing solution, 13 parts of boron trifluorides at the beginning of taking 13 parts in 60 DEG C of heat preservation 1.5h
Ether, 8 parts of 1,3-butadienes, 4 parts of ammonium persulfates, 6 parts of sodium acetates, 7 parts of trialkylaluminiums, are stirred 3.5h in 83 DEG C, obtain silicon
Alkane adjuvant.
The preparation method of alginic acid compound, includes the following steps：
S1. in mass ratio 1：8 take sodium alginate to mix with water, stir 40min with 235r/min, stand 3h, sodium alginate is added
The Na that 0.5 times of quality2CO3, 4 times of sodium alginate quality of dehydrated alcohol, be stirred, obtain matrix；
It S2. is in mass ratio 1：13 take nano-alpha aluminium oxide and dehydrated alcohol to mix, and under the conditions of being 48kHz with supersonic frequency, surpass
Sound disperses 18min, the dopamine solution that the mass concentration for adding 0.3 times of dehydrated alcohol quality is 2.5g/L, ultrasonic disperse
13min obtains nano-alpha aluminium oxide dispersion liquid；
S3. in 55 DEG C, in mass ratio 2：4：4：0.1 takes Fe3O4Colloid, matrix, nano-alpha aluminium oxide dispersion liquid, CaCl2Mixing,
40min is stirred, mixed liquor is obtained, the 8% crosslinking agent processing 35min of mixed liquor quality is added to get alginic acid compound.
Crosslinking agent：In mass ratio 2：0.1：18 take Geniposide, Cacl2, dehydrated alcohol mixing to get crosslinking agent.
A kind of preparation method of steel silane finish, includes the following steps：
（1）According to the mass fraction, 25 parts of propyl trimethoxy silicanes, 25 parts of Silane coupling agent KH550s, 13 parts of auxiliary agents, 7 parts of tables are taken
Face activating agent, 5 parts of solubilizer, 4 parts of viscosity-controlling agents, 40 parts of water, 40 parts of silane adjuvants, 20 parts of alginic acid compounds；
（2）Prior to 43 DEG C, takes surfactant, solubilizer, viscosity-controlling agent, water to mix in blender, stirred with 235r/min
35min adds silane adjuvant, alginic acid compound, propyl trimethoxy silicane, Silane coupling agent KH550 mixing, ultrasonic wave
Disperse 13min to get steel silane finish.
Embodiment 3
Auxiliary agent：In mass ratio 1：2：7 take FeCl3, citric acid, water mixing to get auxiliary agent.
Solubilizer：Emulsifier EL-60, fatty alcohol polyoxyethylene ether, any one in sodium secondary alkyl sulfonate.
Surfactant：In mass ratio 4：2 take laureth sodium sulfovinate, neopelex mixing to get
Surfactant.
Viscosity-controlling agent：Polyethylene wax, cyclohexanol, urea, any one in husky rope wax.
The preparation method of silane adjuvant, includes the following steps：
（1）In mass ratio 1：3：2：8 take butyl titanate, H2SO4、H2O2, water be mixed, stand 5h, obtain pretreatment fluid, take
Pretreatment fluid in mass ratio 1：2 are added the dopamine solution that concentration is 2g/L, and for 24 hours, ultrasonication 15min is obtained for oscillating reactions
Dispersion liquid takes dispersion liquid rotary evaporation, is concentrated under reduced pressure into the 30% of original volume, obtains concentrate；
（2）Take ferrous sulfate monohydrate in mass ratio 1：10 are added distilled water, and 3h is stirred in 25 DEG C, and ferrous sulfate monohydrate is added
The aluminium oxide that 3 times of quality is warming up to 35 DEG C of heat preservation 2h, obtains mixture, take mixture in mass ratio 4：2 are added concentrate mixing,
The sodium dihydrogen phosphate for adding mixture quality 30% obtains mixed matrix object, takes mixed matrix object by quality in 75 DEG C of heat preservation 4h
Than 5：2 are added sodium bicarbonate, stand for 24 hours, dry, obtain dried object；
（3）Take maleic anhydride in mass ratio 1：15 are added the sodium hydroxide solution mixing of concentration 0.01mol/L, mixed in 45 DEG C of stirrings
3h is closed, the citric acid solution that the mass fraction of the sodium molybdate and maleic anhydride quality 8% that add maleic anhydride quality 5% is 30%
Mixing obtains just processing solution, according to the mass fraction, processing solution, 15 parts of boron trifluoride second at the beginning of taking 15 parts in 65 DEG C of heat preservation 2h
Ether, 10 parts of 1,3-butadienes, 5 parts of ammonium persulfates, 8 parts of sodium acetates, 10 parts of trialkylaluminiums, are stirred 4h in 85 DEG C, obtain silane
Adjuvant.
The preparation method of alginic acid compound, includes the following steps：
S1. in mass ratio 1：10 take sodium alginate to mix with water, stir 50min with 250r/min, stand 4h, sodium alginate is added
The Na that 0.8 times of quality2CO3, 5 times of sodium alginate quality of dehydrated alcohol, be stirred, obtain matrix；
It S2. is in mass ratio 1：15 take nano-alpha aluminium oxide and dehydrated alcohol to mix, and under the conditions of being 50kHz with supersonic frequency, surpass
Sound disperses 20min, the dopamine solution that the mass concentration for adding 0.5 times of dehydrated alcohol quality is 2.5g/L, ultrasonic disperse
15min obtains nano-alpha aluminium oxide dispersion liquid；
S3. in 60 DEG C, in mass ratio 2：5：4：0.1 takes Fe3O4Colloid, matrix, nano-alpha aluminium oxide dispersion liquid, CaCl2Mixing,
50min is stirred, mixed liquor is obtained, the 10% crosslinking agent processing 40min of mixed liquor quality is added to get alginic acid compound.
Crosslinking agent：In mass ratio 2：0.1：20 take Geniposide, Cacl2, dehydrated alcohol mixing to get crosslinking agent.
A kind of preparation method of steel silane finish, includes the following steps：
（1）According to the mass fraction, 30 parts of propyl trimethoxy silicanes, 30 parts of Silane coupling agent KH550s, 15 parts of auxiliary agents, 8 parts of tables are taken
Face activating agent, 6 parts of solubilizer, 5 parts of viscosity-controlling agents, 50 parts of water, 50 parts of silane adjuvants, 25 parts of alginic acid compounds；
（2）Prior to 50 DEG C, takes surfactant, solubilizer, viscosity-controlling agent, water to mix in blender, stirred with 250r/min
40min adds silane adjuvant, alginic acid compound, propyl trimethoxy silicane, Silane coupling agent KH550 mixing, ultrasonic wave
Disperse 15min to get steel silane finish.
Comparative example 1：It is essentially identical with the preparation method of embodiment 3, it has only the difference is that lacking silane adjuvant.
Comparative example 2：It is essentially identical with the preparation method of embodiment 3, it has only the difference is that lacking alginic acid compound.
Comparative example 3：The silane finish of company of Xiangfan City production.
Steel silane finish prepared by embodiment 1,2,3 and comparative example 1,2,3 to same steel according to coating after
Neutral salt spray test《B 10125-1997》, paint film adhesion grade《GB9286-1998》, paint film impact resistance《GB1732-
1993》Standard carries out performance detection, testing result record such as table 1.
Table 1：
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Handle the time（min） | 30 | 30 | 30 | 30 | 30 | 30 |
| Use temperature（℃） | 28 | 28 | 28 | 28 | 28 | 28 |
| Salt spray test after coating（h） | 935 | 910 | 920 | 460 | 480 | 520 |
| The resistance to impulse force of paint film（kg·cm） | 50 | 50 | 50 | 40 | 40 | 40 |
| Paint film adhesion grade（Grade） | 0 | 0 | 0 | 2 | 2 | 2 |
| Corrosivity after a week | Corrosion-free phenomenon | Corrosion-free phenomenon | Corrosion-free phenomenon | Slight erosion | Slight erosion | Slight erosion |
In conclusion as shown in Table 1, steel silane finish properties of the invention are better than the prior art, filming performance compared with
Good, impact resistance and corrosion resistance are significantly improved, and have preferable development prospect.
Claims (8)
1. a kind of steel silane finish includes following component according to the mass fraction：15 ~ 30 parts of propyl trimethoxy silicanes, 20 ~
30 parts of Silane coupling agent KH550s, 10 ~ 15 parts of auxiliary agents, 5 ~ 8 parts of surfactants, 3 ~ 6 parts of solubilizer, 2 ~ 5 parts of viscosity-controlling agents,
30 ~ 50 parts of water, which is characterized in that further include 30 ~ 50 parts of silane adjuvants, 15 ~ 25 parts of alginic acid compounds.
2. a kind of steel silane finish according to claim 1, which is characterized in that the preparation method of the silane adjuvant,
Include the following steps：
（1）In mass ratio 1：3：2：6 ~ 8 take butyl titanate, H2SO4、H2O2, water be mixed, stand, obtain pretreatment fluid, take pre-
Treatment fluid in mass ratio 1：1 ~ 2 is added dopamine solution, oscillating reactions, and ultrasonication obtains dispersion liquid, and dispersion liquid rotation is taken to steam
Hair, is concentrated under reduced pressure into the 20 ~ 30% of original volume, obtains concentrate；
（2）Take ferrous sulfate monohydrate in mass ratio 1：6 ~ 10 are added distilled water, are stirred in 20 ~ 25 DEG C, and sulfuric acid monohydrate is added
The aluminium oxide of 2 ~ 3 times of ferrous quality is warming up to 30 ~ 35 DEG C of 1 ~ 2h of heat preservation, obtains mixture, take mixture in mass ratio 4：1 ~ 2 adds
Enter concentrate mixing, adds the sodium dihydrogen phosphate of mixture quality 20 ~ 30%, in 70 ~ 75 DEG C of 2 ~ 4h of heat preservation, obtain mixed matrix
Object takes mixed matrix object in mass ratio 5：2 are added sodium bicarbonate, stand, dry, obtain dried object；
（3）Take maleic anhydride in mass ratio 1：10 ~ 15 are added sodium hydroxide solution mixing, are stirred, add in 40 ~ 45 DEG C
The sodium molybdate of maleic anhydride quality 2 ~ 5% and the mixing of the citric acid solution of maleic anhydride quality 5 ~ 8%, in 55 ~ 65 DEG C of 1 ~ 2h of heat preservation,
Obtain just processing solution, according to the mass fraction, processing solution, 10 ~ 15 parts of boron trifluoride ether, 5 ~ 10 part 1,3- at the beginning of taking 10 ~ 15 parts
Butadiene, 2 ~ 5 parts of ammonium persulfates, 3 ~ 8 parts of sodium acetates, 4 ~ 10 parts of trialkylaluminiums, are stirred 3 ~ 4h in 80 ~ 85 DEG C, obtain silane
Adjuvant.
3. a kind of steel silane finish according to claim 1, which is characterized in that the preparation side of the alginic acid compound
Method includes the following steps：
S1. in mass ratio 1：5 ~ 10 take sodium alginate and water to be mixed, and stand, are added 0.2 ~ 0.8 times of sodium alginate quality
Na2CO3, 2 ~ 5 times of sodium alginate quality of dehydrated alcohol, be stirred, obtain matrix；
It S2. is in mass ratio 1：10 ~ 15 take nano-alpha aluminium oxide and dehydrated alcohol to mix, and dehydrated alcohol matter is added in ultrasonic disperse
The dopamine solution of 0.1 ~ 0.5 times of amount, ultrasonic disperse obtain nano-alpha aluminium oxide dispersion liquid；
S3. in 50 ~ 60 DEG C, in mass ratio 2：3~5：4：0.1 takes Fe3O4Colloid, matrix, nano-alpha aluminium oxide dispersion liquid, CaCl2
It is mixed, obtains mixed liquor, 5 ~ 10% crosslinking agent that mixed liquor quality is added is handled to get alginic acid compound.
4. a kind of steel silane finish according to claim 1, which is characterized in that the auxiliary agent：In mass ratio 1：2：4~7
Take FeCl3, citric acid, water mixing to get auxiliary agent.
5. a kind of steel silane finish according to claim 1, which is characterized in that the surfactant：In mass ratio
4：1 ~ 2 takes laureth sodium sulfovinate, neopelex mixing to get surfactant.
6. a kind of steel silane finish according to claim 1, which is characterized in that the viscosity-controlling agent：Polyethylene wax,
Cyclohexanol, urea, any one in husky rope wax.
7. a kind of steel silane finish according to claim 1, which is characterized in that the solubilizer：Polyoxyethylene caster
Oil, fatty alcohol polyoxyethylene ether, any one in sodium secondary alkyl sulfonate.
8. a kind of steel silane finish according to claim 3, which is characterized in that the crosslinking agent in the step S3：It presses
Mass ratio 2：0.1：15 ~ 20 take Geniposide, CaCl2, dehydrated alcohol mixing to get crosslinking agent.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113512208A (en) * | 2021-08-04 | 2021-10-19 | 哈尔滨工业大学 | Preparation method of sodium alginate-based photothermal distillation hydrogel |
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| CN104846359A (en) * | 2014-02-17 | 2015-08-19 | 广州中国科学院工业技术研究院 | Composite treatment agent for metal surface pretreatment, preparation method and applications thereof |
| CN105149192A (en) * | 2015-09-12 | 2015-12-16 | 杭州萧山金润表面活性材料厂 | Metal surface coating process |
| CN105149193A (en) * | 2015-09-12 | 2015-12-16 | 杭州萧山金润表面活性材料厂 | Metal surface coating pretreatment process |
| CN107604366A (en) * | 2017-07-31 | 2018-01-19 | 常州建轩纺织品有限公司 | A kind of steel surface environmental-protecting chemical polishing fluid |
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| CN105149192A (en) * | 2015-09-12 | 2015-12-16 | 杭州萧山金润表面活性材料厂 | Metal surface coating process |
| CN105149193A (en) * | 2015-09-12 | 2015-12-16 | 杭州萧山金润表面活性材料厂 | Metal surface coating pretreatment process |
| CN107604366A (en) * | 2017-07-31 | 2018-01-19 | 常州建轩纺织品有限公司 | A kind of steel surface environmental-protecting chemical polishing fluid |
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| CN113512208A (en) * | 2021-08-04 | 2021-10-19 | 哈尔滨工业大学 | Preparation method of sodium alginate-based photothermal distillation hydrogel |
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