CN101338091A - Chromium-free metal anti-corrosive paint, preparation method and use method - Google Patents
Chromium-free metal anti-corrosive paint, preparation method and use method Download PDFInfo
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- CN101338091A CN101338091A CNA2008100417442A CN200810041744A CN101338091A CN 101338091 A CN101338091 A CN 101338091A CN A2008100417442 A CNA2008100417442 A CN A2008100417442A CN 200810041744 A CN200810041744 A CN 200810041744A CN 101338091 A CN101338091 A CN 101338091A
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Abstract
The invention relates to a free-chrome metal anti-corrosive coating and a preparation method and a use method thereof, and is characterized in that the coating is mixed with components A and B by the mass ratio of 1.6: 1 to 1.4:1. Wherein, component A consists of zinc sheet, aluminum sheet, nonionic surface active agent, organic silicon, low-melting point organic alcohol and dispersant. Component B consists of low-boiling mixed organic alcohol and viscous water. The anti-corrosive coating provided does not contain chrome and Cd or Hg heavy metal elements, but has anti-corrosion characteristic equal to common chrome anti-corrosive coatings.
Description
Technical field
The present invention relates to a kind of metal anti-corrosive paint, preparation method and using method of non-electrolyte, especially relate to a kind of protective system that does not contain chromium and other class heavy metal Cd, Hg and Pb, belong to the protective system field that does not contain chromium.
Background technology
Non-electrolyte zinc-chromium coating (hereinafter to be referred as zinc-chromium coating) is that at present domestic and international popular helps environmental protection, makes the metallic surface have a kind of novel protective system of high antiseptic power.Its antiseptic principle is the Cr that adopts in the chromic salts
6+Come zinc, aluminium flake in the passivation coatings, improve the self-preserving ability of zinc, aluminium flake, through 300 ℃ of bakings, redox reaction forms amorphous nGr
2O
3MGrO
3Composite salt and zinc-aluminium lamella are folded to cover the metallic surface, so that under the thickness film layer condition that 6-8 μ m is only arranged, just can be under neutral salt spray 1000h condition, matrix does not produce red rust.Simultaneously it also has or not hydrogen embrittlement, can with multiple plating, the rete bonded advantage that is coated with kind.Yet, in zinc-chromium coating, contain Cr
6+And Cr
3+, and Cr
6+Be a kind of carcinogenic substance of heavily contaminated, although the technological operation of zinc-chromium coating is a totally enclosed process, coating does not discharge, can strict control, and the employed container of coating, the waste liquid of minute quantity when miscarriage, still has the danger of contaminate environment.Therefore thoroughly stop to use Cr
6+Zinc in the passivation coatings, aluminium flake, imperative.
It is exactly a kind of protective system that does not contain chromium and other class heavy metal Cd, Hg and Pb that the application intends a kind of chromium-free metal anti-corrosive paint is provided.Selected the zinc-aluminium sheet combination of an amount of organo-silicon coupling agent and high percentage for use, reaching also is to form efficient corrosion resisting electro-chemical protection rete in the coating of thinner layer for this reason.
Summary of the invention
The object of the present invention is to provide a kind of protective system and using method thereof that does not contain chromium and other class heavy metal Cd, Hg and Pb.
The protective system that does not contain chromium and other class heavy metal Cd, Hg and Pb provided by the present invention is a kind of aqueous, environmental protective coating that possesses high anti-corrosion.
Because the present invention selects lower boiling organic alcohol for use, thereby solidification value is relatively low, has saved a large amount of energy.
Use a certain proportion of zinc-aluminium sheet among the present invention, therefore have conductivity preferably, resistivity≤3.5 * 10
-4Ω.
The present invention finishes the technical scheme that above-mentioned technical requirements is implemented: chromium-free metal anti-corrosive paint is mixed by A, B two components.Its mass percent is respectively:
The A component
Zinc metal sheet 35.5-39.7%
Aluminium flake 10.2-14.8%
The organic pure 27.8-31.8% of lower boiling mixed type
Water-soluble organic silicon 14.8-18.8%
Nonionic surface active agent 1.8-2.2%
Dispersion agent 1.1-1.5%
The B component
The organic pure 73-77% of lower boiling mixed type
Sticking water 23-27%
The mass ratio of A/B can be 1.4-1.6: 1, and preferred plan is 1.5: 1
Production program of the present invention is:
A component: with zinc, aluminium flake, water-soluble organic alcohol, dispersion agent and nonionogenic tenside, put into agitator and mix in proportion, fully stirred 6-8 hour, place roller mill to grind then to be extruded into slurry standby.
The above-mentioned slurry of weighing in proportion mixes stirring 10-15 minute with organo-silicon coupling agent with machine mixer, evenly gets final product.
With spreading mass promptly is the A material.Left standstill 2-5 days, and generally left standstill and used to best in 2-3 days.Quality guaranteed period is 6 months.
1.6: 1～1.4: 1 the mass ratio of A component and B component ammonium that leaves standstill after 2-5 days is mixed.Wherein, the organic alcohol of described lower boiling mixed type is: the organic alcohol of mixed type of any two or three in propylene glycol, methyl alcohol and the ethanol.
Described dispersion agent is polyether-modified dimethyl siloxane or Zinic stearas.
Described organosilicon is a silane coupling agent.
Described nonionic agent is the ethylene oxide adduct or the alkylphenol polyoxyethylene of polypropylene glycol.
Zinc-aluminium sheet in the described coating must shape be flaky, the specification size, and the sheet footpath is at 15-40 μ m, and sheet is thick in 0.2-0.5 μ m.
The content of described zinc-aluminium sheet accounts for coating quality percentage tree for 28-32%, guarantees that with this coating has good electrical conductivity.
Described sticking water is the deionized water that contains the tackifier of 1～1.5% (mass percent), and tackifier are hydroxylated cellulose or methylcellulose gum.
Need to guarantee the organosilicon content of 8-12% in the described coating, it can suppress the oxidizing reaction of zinc-aluminium sheet in ionized water.
Behind the described coating shape film, be to be coated with under two processing condition of drying by the fire with two to be guaranteed that coated weight is at 250-300mg/dm
2, do not allow the holiday phenomenon after applying for the first time in principle and exist.Storing temperature is 200～250 ℃, and desiring the rot-resistant metal matrix material is carbon steel part or ironcasting.
This shows that a kind of chromium-free metal anti-corrosive paint provided by the invention is characterised in that:
1. the material that does not contain Cr, Cd, Hg, Pb heavy metal and other ionic state exists;
2. in the chromium-free metal anti-corrosive paint water-borne coatings based on the non-electrolyte of zinc, aluminium flake metal.
3. chromium-free metal anti-corrosive paint shape film is to finish under 220-250 ℃ of storing temperature, saves a large amount of energy.
4. behind the chromium-free metal anti-corrosive paint shape film, be coated with complexor at 250-300mg/dm
2, anti-neutral salt spray ability 〉=500h.
5. behind the chromium-free metal anti-corrosive paint shape film, conduct electricity very well resistance value≤3.5 * 10
-4Ω.
6. contain a certain amount of organosilicon in the chromium-free metal anti-corrosive paint.
7. its antiseptic property of chromium-free metal anti-corrosive paint provided by the invention has and contains the similar Anticorrosive Character of chromium protective system.
Embodiment
Below by specific embodiment, to further specify substantive distinguishing features of the present invention and distinguishing feature.
Embodiment 1
The protective system that provides is by A, B two components mix, A, the mass ratio of B two components is 1.5: 1, wherein, the A component is by zinc metal sheet, aluminium flake, water-soluble organic alcohol, silane coupling agent, nonionic surface active agent and dispersion agent are formed, wherein the sheet of zinc metal sheet and aluminium flake directly is 15～40 μ m, sheet is thick to be 0.3～0.4 μ m, be zinc metal sheet 38% concrete the composition, aluminium flake 12.5%, lower boiling mixed type organic pure 30%, they are propylene glycol, methyl alcohol or ethanol, organosilicon 16%, nonionic surface active agent is an alkylphenol polyoxyethylene, add-on 2.0%, dispersion agent are that silicone grease acid zinc accounts for 1.5%;
The B material is mixed and made into by organic pure mass percent 75% and 25% sticking water, should earlier zinc metal sheet, aluminium flake, water-soluble organic alcohol, dispersion agent and nonionic surface active agent be stirred in agitator 6-8 hour, place roller mill to grind then and be extruded into slurry, mix stirring at last again with organosilicon, leave standstill 2 days thick and B material by A/B=1.5: 1 quality compares mixing.
The chromium-free metal anti-corrosive paint of being made by present embodiment has conductivity preferably, resistivity≤3.5 * 10
-4, and on carbon steel or cast iron matrix the rotten ability 〉=500h of the anti-neutral salt of shape thickness.
Embodiment 2
The mass ratio of A/B is 1.6: 1, and all the other are with embodiment 1.
Embodiment 3
The mass ratio of A/B is 1.4: 1, and all the other are with embodiment 1.
Claims (10)
1, a kind of chromium-free metal anti-corrosive paint is characterized in that it is mixed by 1.6: 1～1.4: 1 mass ratioes by A, B two components to form,
Wherein: the quality percentage of A component is
Zinc metal sheet 35.5～39.7%
Aluminium flake 10.2～14.8%
Lower boiling mixed type organic pure 27.8～31.8%
Water-soluble organic silicon coupling agent 14.8～18.8%
Nonionic surface active agent 1.8～2.2%
Dispersion agent 1.1～1.5%
The quality percentage of B component is
Lower boiling mixed type organic pure 73～77%
Sticking water 23～27%
Described zinc metal sheet or aluminium flake exist with sheet form, and sheet directly is 15～40 μ m;
The organic alcohol of described lower boiling mixed type is: any two or three in propylene glycol, methyl alcohol and the ethanol;
Described dispersion agent is polyether-modified dimethyl siloxane or Zinic stearas;
Described organosilicon is a silane coupling agent;
Described nonionic surface active agent is the ethylene oxide adduct or the alkylphenol polyoxyethylene of polypropylene glycol; Described sticking water is to contain the deionized water that mass percent is 1～1.5% tackifier, and described tackifier are hydroxylated cellulose or methylcellulose gum.
2, by the described chromium-free metal anti-corrosive paint of claim 1, it is characterized in that the mass ratio of A, B two components is 1.5: 1.
3, by the described chromium-free metal anti-corrosive paint of claim 1, it is characterized in that the sheet of described zinc metal sheet or aluminium flake thick be 0.2～0.5 μ m.
4, by the described chromium-free metal anti-corrosive paint of claim 1, the mass percent that the content that it is characterized in that zinc-aluminium sheet in the coating accounts for coating is 28～32%.
5, preparation is characterized in that as the method for each described chromium-free metal anti-corrosive paint in the claim 1～4:
(1) at first, by putting into stirrer for mixing after the zinc metal sheet in the A component, aluminium flake, the organic alcohol of lower boiling mixed type, nonionic surface active agent and the dispersion agent weighing;
(2) then the mixture of step 1 is placed gadolinium Kun machine to grind the machine form slurry;
(3) weigh in proportion slurry that step 2 is made mixes with the silane coupling agent machine mixer and stirred 10～15 minutes, is prepared into the A component, leaves standstill 2～5 days;
(4) the organic pure and mild sticking water of pressing in the B component of lower boiling mixed type mixes;
(5) the A component and the B component that will leave standstill after 2～5 days mixes by 1.6: 1～1.4: 1 mass ratioes.
6,, it is characterized in that churning time is 6～8 hours in the middle stirrer of step (1) by the preparation method of the described chromium-free metal anti-corrosive paint of claim 5.
7,, it is characterized in that the A composition of step (3) preparation left standstill 2～5 days by the preparation method of the described chromium-free metal anti-corrosive paint of claim 5.
8,, it is characterized in that prepared A composition left standstill 2～3 days by the preparation method of claim 5 or 7 described chromium-free metal anti-corrosive paints.
9, use is characterized in that desiring to be coated with two baking technologies with two behind the shape film on the rot-resistant metal matrix material as the method for each described chromium-free metal anti-corrosive paint of claim 1～4, and coated weight is at 250～300mg/dm
2, not allowing the holiday phenomenon after applying for the first time, storing temperature is 200～250 ℃.
10, by the using method of the described chromium-free metal anti-corrosive paint of claim 9, it is characterized in that described metal matrix material is carbon steel or ironcasting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100417442A CN101338091B (en) | 2008-08-15 | 2008-08-15 | Chromium-free metal anti-corrosive paint, preparation method and use method |
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|---|---|---|---|
| CN2008100417442A CN101338091B (en) | 2008-08-15 | 2008-08-15 | Chromium-free metal anti-corrosive paint, preparation method and use method |
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|---|---|
| CN101338091A true CN101338091A (en) | 2009-01-07 |
| CN101338091B CN101338091B (en) | 2010-06-09 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899254A (en) * | 2010-07-13 | 2010-12-01 | 襄樊普士利工程器材有限公司 | Chromium-free zinc aluminum anticorrosive paint and preparation method |
| WO2012058839A1 (en) * | 2010-11-04 | 2012-05-10 | 江苏麟龙新材料股份有限公司 | Water-soluble coating for anti-corrosion treatment of oceanic climate-resisting engineering parts and preparing method thereof |
| CN102504700A (en) * | 2011-11-09 | 2012-06-20 | 深圳市中金岭南科技有限公司 | Aqueous chromium-free zinc and aluminum coating and preparation method thereof |
| CN103232737A (en) * | 2013-01-03 | 2013-08-07 | 张军 | Chrome-free zinc-aluminum coating anticorrosive paint comprising nickel-titanium-manganese |
| CN103275527A (en) * | 2013-01-03 | 2013-09-04 | 张军 | Manganese containing anticorrosion paint with chromium-free zinc aluminium coating |
| CN103275526A (en) * | 2013-01-03 | 2013-09-04 | 张军 | Nickel-manganese-silicon containing anticorrosion paint with chromium-free zinc aluminium coating |
| CN103849187A (en) * | 2014-03-05 | 2014-06-11 | 常州君合科技有限公司 | Inorganic anticorrosive paint as well as preparation method and application method of inorganic anticorrosive paint |
| CN104356938A (en) * | 2014-10-08 | 2015-02-18 | 沈阳市航达科技有限责任公司 | Chromium-free water-based metal anticorrosive paint and preparation method thereof |
| CN104387826A (en) * | 2014-11-03 | 2015-03-04 | 中国科学院金属研究所 | Single-component environment-friendly zinc-aluminum-silicon coating and preparation method of coating |
| CN105348870A (en) * | 2015-10-30 | 2016-02-24 | 河南师范大学 | Preparation method of chromium-free dacromet coating |
| CN110064729A (en) * | 2019-05-22 | 2019-07-30 | 惠州市惠阳广杰五金制品有限公司 | Shell membrane manufacture craft |
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| CN102653643B (en) * | 2012-04-24 | 2015-03-11 | 包头稀土研究院 | Zinc-based composite coating for improving corrosion resistance of neodymium-iron-boron magnet |
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| US5868819A (en) * | 1996-05-20 | 1999-02-09 | Metal Coatings International Inc. | Water-reducible coating composition for providing corrosion protection |
| CN1182205C (en) * | 2001-06-12 | 2004-12-29 | 上海达克罗涂复工业有限公司 | Non-electrolytic metal corrosion preventing paint |
| ATE312884T1 (en) * | 2001-10-22 | 2005-12-15 | Henkel Kgaa | SURFACE COATED AL/ZN STEEL SHEETS AND SURFACE COATING AGENTS |
| CN1260311C (en) * | 2003-10-31 | 2006-06-21 | 常州达克罗涂覆有限公司 | Non-electrolytic dope for anti corrosion of metal |
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2008
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899254A (en) * | 2010-07-13 | 2010-12-01 | 襄樊普士利工程器材有限公司 | Chromium-free zinc aluminum anticorrosive paint and preparation method |
| WO2012058839A1 (en) * | 2010-11-04 | 2012-05-10 | 江苏麟龙新材料股份有限公司 | Water-soluble coating for anti-corrosion treatment of oceanic climate-resisting engineering parts and preparing method thereof |
| CN102504700A (en) * | 2011-11-09 | 2012-06-20 | 深圳市中金岭南科技有限公司 | Aqueous chromium-free zinc and aluminum coating and preparation method thereof |
| CN103232737B (en) * | 2013-01-03 | 2015-07-22 | 魏放 | Chrome-free zinc-aluminum coating anticorrosive paint comprising nickel-titanium-manganese |
| CN103275527A (en) * | 2013-01-03 | 2013-09-04 | 张军 | Manganese containing anticorrosion paint with chromium-free zinc aluminium coating |
| CN103275526A (en) * | 2013-01-03 | 2013-09-04 | 张军 | Nickel-manganese-silicon containing anticorrosion paint with chromium-free zinc aluminium coating |
| CN103232737A (en) * | 2013-01-03 | 2013-08-07 | 张军 | Chrome-free zinc-aluminum coating anticorrosive paint comprising nickel-titanium-manganese |
| CN103275527B (en) * | 2013-01-03 | 2015-08-19 | 魏放 | A kind of Non-chromium Zn-al Coating protective system containing manganese |
| CN103275526B (en) * | 2013-01-03 | 2015-12-02 | 新昌县康泓机械科技有限公司 | A kind of Non-chromium Zn-al Coating protective system of nickel-manganese-contained-silicon |
| CN103849187A (en) * | 2014-03-05 | 2014-06-11 | 常州君合科技有限公司 | Inorganic anticorrosive paint as well as preparation method and application method of inorganic anticorrosive paint |
| CN104356938A (en) * | 2014-10-08 | 2015-02-18 | 沈阳市航达科技有限责任公司 | Chromium-free water-based metal anticorrosive paint and preparation method thereof |
| CN104387826A (en) * | 2014-11-03 | 2015-03-04 | 中国科学院金属研究所 | Single-component environment-friendly zinc-aluminum-silicon coating and preparation method of coating |
| CN105348870A (en) * | 2015-10-30 | 2016-02-24 | 河南师范大学 | Preparation method of chromium-free dacromet coating |
| CN110064729A (en) * | 2019-05-22 | 2019-07-30 | 惠州市惠阳广杰五金制品有限公司 | Shell membrane manufacture craft |
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| CN101338091B (en) | 2010-06-09 |
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