CN110029341A - A kind of Non-water washing silane finish of coated metal pre-treatment and preparation method thereof - Google Patents
A kind of Non-water washing silane finish of coated metal pre-treatment and preparation method thereof Download PDFInfo
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- CN110029341A CN110029341A CN201910479323.6A CN201910479323A CN110029341A CN 110029341 A CN110029341 A CN 110029341A CN 201910479323 A CN201910479323 A CN 201910479323A CN 110029341 A CN110029341 A CN 110029341A
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- silane
- treatment
- water
- water washing
- coated metal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910000077 silane Inorganic materials 0.000 title claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 43
- 238000005406 washing Methods 0.000 title claims abstract description 26
- 238000002203 pretreatment Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000007921 spray Substances 0.000 claims abstract description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 13
- 150000001412 amines Chemical class 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 239000002738 chelating agent Substances 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims abstract description 13
- 238000007654 immersion Methods 0.000 claims abstract description 5
- 150000003839 salts Chemical class 0.000 claims description 7
- 238000005352 clarification Methods 0.000 claims description 5
- 238000004090 dissolution Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 4
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 claims description 2
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical group NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 2
- URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical group OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 claims description 2
- XJCVRTZCHMZPBD-UHFFFAOYSA-N 3-nitroaniline Chemical compound NC1=CC=CC([N+]([O-])=O)=C1 XJCVRTZCHMZPBD-UHFFFAOYSA-N 0.000 claims description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical group CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 229940043237 diethanolamine Drugs 0.000 claims description 2
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 claims description 2
- 229960001484 edetic acid Drugs 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 239000001923 methylcellulose Substances 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 239000000176 sodium gluconate Substances 0.000 claims description 2
- 229940005574 sodium gluconate Drugs 0.000 claims description 2
- 235000012207 sodium gluconate Nutrition 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical class NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 230000003301 hydrolyzing effect Effects 0.000 claims 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims 1
- 229920002554 vinyl polymer Polymers 0.000 claims 1
- 239000010408 film Substances 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 239000010409 thin film Substances 0.000 abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 235000019441 ethanol Nutrition 0.000 description 10
- 238000005098 hot rolling Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229940098458 powder spray Drugs 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-O N-dimethylethanolamine Chemical compound C[NH+](C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-O 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229960000510 ammonia Drugs 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHPORCSPXIHLZ-UHFFFAOYSA-N diphenhydramine hydrochloride Chemical compound [Cl-].C=1C=CC=CC=1C(OCC[NH+](C)C)C1=CC=CC=C1 PCHPORCSPXIHLZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- -1 silicon Alkane Chemical class 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
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
- C23C22/60—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 alkaline aqueous solutions with pH greater than 8
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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)
- Application Of Or Painting With Fluid Materials (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
A kind of Non-water washing silane finish of coated metal pre-treatment and preparation method thereof, the present invention relates to a kind of metal surface treatment technologies, invention provides a kind of the following technical solution: a kind of Non-water washing silane finish of coated metal pre-treatment, the inorganic agent include the component of following mass parts: silane coupling agent 5%-20%, organic amine regulator 2%-10%, alcohol 0.5%-5%, water soluble stabilizer 0.5%-5%, chelating agent 0.1%-0.5%, auxiliary agent 0.1%-2%, surplus are water.It is apparently as clear as crystal liquid, and no suspended substance.The Non-water washing silane finish can metal surface formed Silan-based Thin Films, have several advantages that without phosphorus (1), heavy metal free, without sediment；(2) Non-water washing；(3) film forming efficiency is high, short processing time；(4) simple and quick, spray or immersion are ok；(5) Silan-based Thin Films obtained in metal surface are fine and close, and corrosion resisting property is excellent, and the adhesive force and corrosion resistance of metallic matrix and coating can be improved, and good corrosion-resisting function can be played to metal.
Description
Technical field
The present invention relates to a kind of metal surface treatment technologies, more particularly to a kind of for the novel of coated metal pre-treatment
Non-water washing silane finish and its preparation method and application.
Background technique
Metal usually requires to carry out some preceding processing work, the techniques such as metal surface oil removing, derusting, phosphatization before coating.
The overwhelming majority is formed a film using bonderite at present, and with the increase of environmental consciousness, the use of bonderite becomes environmental pressure, closely
Vitrified agent and silane finish continue to bring out over year, and the phosphating coat for having pollution is replaced with without phosphorus film.And pure silane inorganic agent is to water
Matter require it is harsh, using being pure water, it is difficult to expanded scope uses, though pure vitrified agent is not high to water quality requirement in use,
The corrosion resistance of vitrification film is slightly lower, and 500h neutral salt spray is unstable, and the metal after surface treated is kept for the time for not returning rust
Shorter, existing silane process is still in a development ascent stage, and technology is not mature enough, binding force, surface in metal surface
Filming performance etc. still has improved space.
Summary of the invention
To solve defect mentioned above, the present invention provides a kind of the following technical solution:
A kind of Non-water washing silane finish of coated metal pre-treatment, the inorganic agent include the group of following parts by weight
Point: silane coupling agent 5%-20%, organic amine regulator 2%-10%, alcohol 0.5%-5%, water soluble stabilizer 0.5%-5%,
Chelating agent 0.1%-0.5%, auxiliary agent 0.1%-2%, surplus are water.It is apparently as clear as crystal liquid, and no suspended substance, pH value are
8~10.
Preferably, the silane coupling agent is low-molecular weight water-soluble silane, the low-molecular weight water-soluble silane
For one in tetraethoxysilane, dimethyl diethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane
Kind or more.
Preferably, the organic amine regulator is silane hydrolyzate promotor, is selected from: monoethanolamine, diethanol amine, three second
Hydramine, N, one or more of N- dimethylethanolamine, meta nitro aniline, aniline.
Preferably, the alcohol is selected from: methanol, ethyl alcohol, one of isopropanol or a variety of.
Preferably, the water soluble stabilizer includes polyethylene glycol, polypropylene glycol, in methylcellulose and its sodium salt
More than one.
Preferably, the auxiliary agent is selected from one or more of benzotriazole, thiocarbamide, nitroguanidine.
Preferably, the chelating agent is selected from hydroxyethylethylene diamine tri-acetic acid, ethylenediamine tetra-acetic acid, sodium gluconate, ammonia
One or more of base triacetic acid, diethylene-triamine pentaacetic acid and its salt etc..
The present invention also provides a kind of preparation method of the Non-water washing silane finish of coated metal pre-treatment, preparation method steps
Suddenly are as follows: the water of formula ratio 2/3rds is added in a kettle, adjusts the pH value of water to 8- with the organic amine regulator of formula ratio
10, then it is added into the water soluble stabilizer of formula ratio, dissolution or after mixing, by the silane coupling agent and formula of formula ratio
The mixture of the alcohol of amount is slowly added in water, and is stirred continuously, after solution clarification after be added into again formula ratio chelating agent and
The auxiliary agent of formula ratio, and stir evenly, excess water is finally supplied, water used is deionized water.
The present invention also provides a kind of application of the Non-water washing silane finish of coated metal pre-treatment, the applying steps
Are as follows:
After metal surface carries out pre-treatment, then using spray or immersion way progress silane treatment, then dry；Wherein silicon
Alkane inorganic agent 1%-5%, spray time 0.5-5min, pH value 8-10,100-150 DEG C of drying temperature, that is, exist by 20-40 DEG C of temperature
Metallic substrate surface forms silane film, and the membrane structure is fine and close, and good corrosion-resisting function can be played to metal surface.
The pre-treatment includes:
(1) oil removing, ungrease treatment are carried out to metal surface；
(2) metal surface is washed.
The Non-water washing silane finish can form Silan-based Thin Films in metal surface, without using phosphorous raw material and heavy metal
Salt, avoid metal reacted with silane finish generate residue, by absorption with infiltration effect, quickly metal surface at
Film possesses two-way chemical bond by using polymeric silane, while combining with metal and coating, has several advantages that
(1) without phosphorus, heavy metal free, without sediment；(2) Non-water washing；(3) film forming efficiency is high, short processing time (0.5-5min)；(4) it operates
Simple and fast, spray or immersion are ok, wide to the range of choice of base shape；(5) silane obtained in metal surface is thin
Film is fine and close, and corrosion resisting property is excellent, and the adhesive force and corrosion resistance of metallic matrix and coating can be improved, and can play to metal
Good corrosion-resisting function is a kind of novel protecting metallic surface method.
Detailed description of the invention
Fig. 1 is the step schematic diagram of Non-water washing silane finish application method of the present invention.
Specific embodiment
Metal vitrified agent of the present invention and its application are described further in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of Non-water washing silane finish for coated metal pre-treatment, it is composed of the following components: silane coupling agent
15%, organic amine regulator 4%, alcohol 5%, water soluble stabilizer 2%, chelating agent 0.3%, auxiliary agent 0.5%, surplus are water.
Preparation method are as follows: the water of formula ratio 2/3rds is added in a kettle, with the organic amine regulator of formula ratio
The pH value of water is adjusted to 8-10, is then added into the water soluble stabilizer of formula ratio, dissolution or after mixing, by formula ratio
The mixture of the alcohol of silane coupling agent and formula ratio is slowly added in water, and is stirred continuously, and is added into again after solution clarification
The chelating agent of formula ratio and the auxiliary agent of formula ratio, and stir evenly, excess water is finally supplied, water used is deionized water.
It produces hot rolled plate to horse steel using above-mentioned inorganic agent to handle, process is as follows:
(1) oil removing, ungrease treatment are carried out to hot rolling plate surface；
(2) hot rolling plate surface is washed；
(3) silane treatment is carried out using immersion way；Wherein: silane finish 2%-4% concentration, spray time 0.5-
1min, pH value 8-10,20-40 DEG C of temperature；(4) it dries: 120 DEG C of temperature；
After drying, carrying out powder spray using Ai Shi get powder can be improved the adhesive force of organic coating, and baige method is attached
Put forth effort to reach 0 grade；By neutral salt spray test 500h, unilateral corrosion diffusion is less than 2mm；By the boiling test of 80 DEG C × 48h,
Film meets hot rolled plate vehicle paintwork production technical standard without being bubbled or the bad phenomenon that falls off.
Embodiment 2
A kind of Non-water washing silane finish for coated metal pre-treatment, it is composed of the following components: silane coupling agent
10%, organic amine regulator 3%, alcohol 4%, water soluble stabilizer 1%, chelating agent 0.5%, auxiliary agent 0.7%, surplus are water.
Preparation method are as follows: the water of formula ratio 2/3rds is added in a kettle, with the organic amine regulator of formula ratio
The pH value of water is adjusted to 9-10, is then added into the water soluble stabilizer of formula ratio, dissolution or after mixing, by formula ratio
The mixture of the alcohol of silane coupling agent and formula ratio is slowly added in water, and is stirred continuously, and is added into again after solution clarification
The chelating agent of formula ratio and the auxiliary agent of formula ratio, and stir evenly, excess water is finally supplied, water used is deionized water.
It produces hot rolled plate to horse steel using above-mentioned inorganic agent to handle, process is as follows:
(1) oil removing, ungrease treatment are carried out to hot rolling plate surface；
(2) hot rolling plate surface is washed；
(3) silane treatment is carried out using spray mode, in which: 2% concentration of silane finish, spray time 1min, pH value
9-10,30 DEG C of temperature；
(4) it dries: 120 DEG C of temperature；
After drying, carrying out powder spray using Ai Shi get powder can be improved the adhesive force of organic coating, and baige method is attached
Put forth effort test and reaches 0 grade；By neutral salt spray test 500h, unilateral corrosion diffusion is less than 1.5mm；Pass through the water of 80 DEG C × 48h
Boil test, film meets hot rolled plate vehicle paintwork production technical standard without being bubbled or the bad phenomenon that falls off.
Embodiment 3
A kind of Non-water washing silane finish for coated metal pre-treatment, it is composed of the following components: silane coupling agent
12%, organic amine regulator 3.5%, alcohol 5%, water soluble stabilizer 1.5%, chelating agent 0.3%, auxiliary agent 0.3%, surplus are
Water.
Preparation method are as follows: the water of formula ratio 2/3rds is added in a kettle, with the organic amine regulator of formula ratio
The pH value of water is adjusted to 9-10, is then added into the water soluble stabilizer of formula ratio, dissolution or after mixing, by formula ratio
The mixture of the alcohol of silane coupling agent and formula ratio is slowly added in water, and is stirred continuously, and is added into again after solution clarification
The chelating agent of formula ratio and the auxiliary agent of formula ratio, and stir evenly, excess water is finally supplied, water used is deionized water.
It produces hot rolled plate to horse steel with above-mentioned inorganic agent to handle, process is as follows:
(1) oil removing, ungrease treatment are carried out to hot rolling plate surface；
(2) hot rolling plate surface is washed；
(3) silane treatment is carried out using spray mode；Wherein: 2% concentration of silane finish, spray time 1.5min, PH
Value 9-10,25 DEG C of temperature；
(4) it dries: 130 DEG C of temperature；
After drying, carrying out powder spray using Ai Shi get powder can be improved the adhesive force of organic coating, and baige method is attached
Put forth effort to reach 0 grade；By neutral salt spray test 572h, unilateral corrosion diffusion is less than 2mm；By the boiling test of 80 DEG C × 48h,
Film meets hot rolled plate vehicle paintwork production technical standard without being bubbled or the bad phenomenon that falls off.
The silane agent that this example is prepared carries out silane treatment to metal surface, and processing step such as attached drawing 1, film forming speed is fast,
Film-formation result is obvious, and corrosion resistance is better than the first two embodiment.
Claims (10)
1. a kind of Non-water washing silane finish of coated metal pre-treatment, which is characterized in that the inorganic agent includes as follows
The component of quality: silane coupling agent 5%-20%, organic amine regulator 2%-10%, alcohol 0.5%-5%, water soluble stabilizer
0.5%-5%, chelating agent 0.1%-0.5%, auxiliary agent 0.1%-2%, surplus are water.
2. the Non-water washing silane finish of coated metal pre-treatment as described in claim 1, which is characterized in that the silane
Coupling agent is low-molecular weight water-soluble silane.
3. the Non-water washing silane finish of coated metal pre-treatment as claimed in claim 2, which is characterized in that described low point
Son amount soluble silane is tetraethoxysilane, dimethyl diethoxysilane, vinyltrimethoxysilane, three second of vinyl
One or more of oxysilane.
4. the Non-water washing silane finish of coated metal pre-treatment as described in claim 1, which is characterized in that described is organic
Amine regulator is silane hydrolyzate promotor.
5. the Non-water washing silane finish of coated metal pre-treatment as claimed in claim 4, which is characterized in that the silane
Hydrolytic accelerating agent is monoethanolamine, diethanol amine, triethanolamine, N, N- dimethylethanolamine, meta nitro aniline, one in aniline
Kind or more.
6. the Non-water washing silane finish of coated metal pre-treatment as described in claim 1, which is characterized in that described is water-soluble
Property stabilizer includes polyethylene glycol, polypropylene glycol, one or more of methylcellulose and its sodium salt.
7. the Non-water washing silane finish of coated metal pre-treatment as described in claim 1, which is characterized in that the auxiliary agent
Selected from one or more of benzotriazole, thiocarbamide, nitroguanidine.
8. the Non-water washing silane finish of coated metal pre-treatment as described in claim 1, which is characterized in that the chelating
Agent is selected from hydroxyethylethylene diamine tri-acetic acid, ethylenediamine tetra-acetic acid, sodium gluconate, aminotriacetic acid, five second of diethylenetriamines
One or more of acid and its salt etc..
9. a kind of system of the Non-water washing silane finish of coated metal pre-treatment as described in claim 1-8 any claim
Preparation Method, which is characterized in that preparation method step are as follows: suitable water is added in a kettle, adjusts water with organic amine regulator
PH value to 9-10, then proceed to be added into the water soluble stabilizer of formula ratio in claim 1, dissolution or after mixing,
The mixture of the silane coupling agent of formula ratio and alcohol is slowly added in water, and is stirred continuously, is added again after solution clarification
Enter chelating agent and auxiliary agent, and stir evenly, finally supplies excess water.
10. a kind of Non-water washing silane finish of coated metal pre-treatment as described in claim 1-8 any claim
Using, which is characterized in that the applying step are as follows:
After carrying out pre-treatment to metal surface, then using spray or immersion way progress silane treatment, then dry；Wherein silane
The 1%-5% of inorganic agent mass parts, spray time 0.5-5min, pH value 8-10,20-40 DEG C of temperature, drying temperature 100-150
℃。
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| CN113755829A (en) * | 2021-08-16 | 2021-12-07 | 深圳市志凌伟业光电有限公司 | Blackening-treated copper film surface anticorrosion protective liquid medicine |
| CN113881935A (en) * | 2021-09-15 | 2022-01-04 | 中国科学院金属研究所 | Weather-resistant steel surface rust layer stabilizing treatment agent based on silane coupling agent, and preparation method and use method thereof |
| CN114107975A (en) * | 2021-11-30 | 2022-03-01 | 上海金堂轻纺新材料科技有限公司 | Cleaning type metal surface coating pretreatment agent and preparation method and application thereof |
| CN115613024A (en) * | 2022-10-28 | 2023-01-17 | 东莞市海勤涂装科技有限公司 | Magnesium alloy surface treatment process based on washing-free multifunctional nano composite silane |
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Application publication date: 20190719 |