CN102234796A - Double-component water-based efficient multifunctional anticorrosive coating - Google Patents
Double-component water-based efficient multifunctional anticorrosive coating Download PDFInfo
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- CN102234796A CN102234796A CN2010101605094A CN201010160509A CN102234796A CN 102234796 A CN102234796 A CN 102234796A CN 2010101605094 A CN2010101605094 A CN 2010101605094A CN 201010160509 A CN201010160509 A CN 201010160509A CN 102234796 A CN102234796 A CN 102234796A
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Abstract
The invention discloses a double-component water-based efficient multifunctional anticorrosive coating, which comprises a component A and a component B, wherein the component A consists of the following materials in part by weight: 200 to 300 parts of phosphoric acid, 20 to 25 parts of zinc nitrate, 2 to 5 parts of zinc oxide, 2 to 6 parts of ammonium molybdate, 2 to 4 parts of citric acid, 2 to 4 parts of triethanolamine, 2 to 3 parts of tartaric acid, 1 to 2 parts of hexadecyl sodium benzenesulfonate and 240 to 300 parts of water; and the component B consists of the following materials in part by weight: 200 to 300 parts of phosphoric acid, 20 to 25 parts of zinc nitrate, 2 to 5 parts of zinc oxide, 2 to 4 parts of calcium nitrate, 4 to 6 parts of hydrogen peroxide and 240 to 300 parts of water. Through the coating, normal-temperature phosphorization can be conveniently realized on steel components, and oil removal, rust removal, phosphorization and passivation are integrally finished; and the coating has good anticorrosive performance, can save a large amount of acid, alkali, water and human resource consumed in traditional treatment, does not produce waste water, and has good environmental benefit.
Description
Technical field
The present invention relates to coating, further be meant aqueous environment protection coating.
Background technology
As everyone knows, iron and steel is present optimal steel anti-corrosive means through bonderizing.Physical and chemical performance based on steel surface, be difficult to all kinds of paint combinations that with the polymer are base-material tight, so that the preservative effect that can't realize ideal, and after phosphatization, the phosphatize phosphate coat in that steel surface forms not only combines close and firm with the iron and steel top layer, and good avidity is arranged with paint that the upper strata covers, thereby by the effect of phosphatize phosphate coat, make the paint on iron and steel top layer and upper strata combine closely, realize the effectively anticorrosion of iron and steel.
Based on multiple reason: steel iron phosphatising handle still have problems as follows:
(1) steel iron phosphatising needs at high temperature to realize, generally needs 60 ℃-90 ℃; Phosphatization is often carried out in the phosphatization pond, thereby make steel iron phosphatising have great limitation, particularly large-scale steel and iron member, outdoor iron and steel stationary member (as large-scale steel and iron member, steel and iron member such as particularly open-air bridge, pipeline, electric high-pressure tower are safeguarded) all can't be realized bonderizing; The a large amount of sediments that bring because of high temperature phosphorization cause the waste of serious environmental pollution and resource simultaneously;
(2) can not realize under the situation of phosphatization at most steel and iron member, often substitute phosphatize phosphate coat with all kinds of rust-proofing primers, although can play a role, bring the heavy work amount but (deoil, derust) in the steel surface pre-treatment, a large amount of acid of consumption, alkali resource and a large amount of acidic and alkaline waste waters of washing back generation bring serious environmental to pollute and the wasting of resources.
Summary of the invention
The technical problem to be solved in the present invention is, the defective at prior art exists proposes a kind of bi-component waterborne high-efficiency multi-function protective system, and it can make steel and iron member realize normal temperature phosphating easily, and deoil, derust, phosphatization, passivation is integrated finishes; Its antiseptic property is good, can save a large amount of acid, alkali, water and the manpower that exhaust because of conventional pretreatment, and no waste water produces, and environmental benefit is good.
Technical scheme of the present invention is, described bi-component waterborne high-efficiency multi-function protective system is made up of A component and B component, and the weight part of described component is formed and is:
(1) A component:
Phosphoric acid 200-300 part,
Zinc nitrate 20-25 part,
Zinc oxide 2-5 part,
Ammonium molybdate 2-6 part,
Citric acid 2-4 part,
Trolamine 2-4 part,
Tartrate 2-3 part,
Hexadecyl phenyl ring acid sodium 1-2 part,
Water 240-300 part;
(2) B component:
Phosphoric acid 200-300 part,
Zinc nitrate 20-25 part,
Zinc oxide 2-5 part,
Nitrocalcite 2-4 part,
Hydrogen peroxide 4-6 part;
Water 240-300 part.
Below the present invention made further specify.
The preparation method of bi-component waterborne high-efficiency multi-function protective system of the present invention can be, each raw material of A component drops into stirred pot, after 1.5 hours-2 hours, becomes the A component at 55 ℃ of-65 ℃ of following stirring reactions, naturally cool to room temperature, the can finished product after stopping to stir; Each raw material of B component drops into stirred pot, after 1.5 hours-2 hours, becomes the B component at 55 ℃ of-65 ℃ of following stirring reactions, naturally cools to room temperature, the can finished product after stopping to stir.
During use, A component finished product and B component finished product are mixed, be coating.
Product of the present invention has the rust-eliminating and rust-preventing dual function, and being different from must be to the rusted metal surface elder generationization rust traditional method that eliminates rust again, and coating of the present invention at first plays rust inhibition to the derust film forming of regenerating of metallic surface, is aqueous environment protection coating.
Changing rust, is the phosphoric acid in the product solution, and (as temperature, auxiliary agent, catalyzer etc.) chemically react with the ferric oxide that the iron surface corrosion generates under appropriate condition; generate tertiary iron phosphate and ferrous protective membrane; air-isolation prevents to continue oxidation, and main chemical reactions is as follows:
Fe
2O
3+2H
3PO
4＝2FePO
4+3H
2O
3FeO+2H
3PO
4＝Fe
3(PO
4)
2+3H
2O
3FeO+2H
3PO
4＝Fe
3(PO
4)
2+3H
2↑
Above-mentioned reaction, can carry out at normal temperatures, and the film that forms is tough and tensile closely knit strong adhesion, the present invention is on the basis of forefathers' research, screening by multiple promotor (catalyzer) has reduced temperature, realizes normal-temperature operation, pass through the effect of auxiliary agents such as tartrate, zine ion simultaneously, quicken the formation and the curing of counterdie, thereby realized band rust, normal-temperature operation; The present invention is divided into A, B component according to the difference of constitutive property, the mechanism of action, and A, B group all keeps the low activity stability state before mixing, and has solved the unstable contradiction of high reactivity product.
Coating of the present invention has been realized normal temperature phosphating, makes that all steel and iron member can both be easily through bonderizing, thereby realizes substituting all kinds of rust-proofing primers with phosphatize phosphate coat, and antiseptic property is good; The present invention is by the application screening to promotor (trolamine), catalyzer (ammonium molybdate) and auxiliary agent in the prescription (hydrogen peroxide, hexadecyl phenyl ring acid sodium, nitrocalcite etc.), improved product activity, realize phosphatization under the normal temperature, and can be converted into useful phosphatize phosphate coat to iron rust; The adding of hardening agent (tartrate, citric acid) effectively improves film strength; Simultaneously under the corresponding adjuvants effect, deoil, derust, phosphatization, passivation be integrated.A large amount of test in places prove, use this product after, can not only strengthen the iron and steel erosion resistance at double, can also save because of giving a large amount of acid, alkali, water and the manpower that processing exhausts; Nontoxic or the low toxicity of product starting material of the present invention, product is nontoxic, does not have waste water, waste residue, exhaust gas emission in the production process, and less energy-consumption belongs to clean technology and clean product.
Product of the present invention is mainly used in the phosphatization of steel and iron member that can't high temperature phosphorization, to substitute existing all kinds of rust-proofing primers.
Tabulate down 1 be coating of the present invention with the phosphorization film quality of existing rust-proofing primer relatively.
Table 1
| Project | The conventional high-temperature phosphatize phosphate coat | Normal temperature phosphating film of the present invention |
| Thickness/um | 3-5 | 3-6 |
| Be coated with film temperature ℃ | 60-90℃ | 5-40℃ |
| Film time of drying | 90-150min | 20-90min |
| Sticking power (cross cut test) | One-level | |
| Weathering resistance | Less than one-level | Zero level |
| Resistance to salt water (5%NaCl, 7d) | - | Do not have peel off, wrinkling, get rusty, variable color |
The reason that product of the present invention is a normal temperature phosphating, Yin Wendu is low, the phosphatize phosphate coat of formation is tiny, tight, on leading indicator, exceeds phosphatize phosphate coat under the high temperature as sticking power, weathering resistance etc.
Table 2 is comparisons of coating of the present invention and existing rust-proofing primer other technologies economic target.
Table 2
| Project | Existing rust-proofing primer | Product of the present invention |
| Brushing area m 2/kg | ?5～8 | 20～40 |
| Anticorrosion time/year | ?2～3 | More than 8 years |
| 100m 2Consume hydrochloric acid (kg) | ?3～8kg | Do not have |
| 100m 2Consume alkali (kg) | ?2～5 | Do not have |
| 100m 2The brushing labour/ | Contain and deoil, derust, 5 more than the labour | 1 below the labor force |
| Environmental pollution | Serious soda acid pollutes | - |
Use of the present invention also can be simplified working procedure, improves work situation.
Conventional phosphatization schedule of operation is: steel surface deoils → washes → acid pickling and rust removing → washing → alkali cleaning → washing → drying → phosphatization (in the phosphatization liquid pool more than 60 ℃) → washing → drying → surface paint to be coated with.
Product operation program of the present invention is: remove earth → deoil → the overweight scale crust → brushing CHL → drying → outer layer coating to be coated with of corrosion removal.
From above working procedure as can be seen, product of the present invention is eliminated acid, alkali because of changing in the rust, and rust has also been saved acid, alkali resource to the pollution of environment, has reduced cost, and has saved the labour.
Moreover through test, product of the present invention is strong to the ceramic-like cleaning force, and particularly to sedimentary throughout the year on the ceramics, the extremely difficult stupid mark of tawny iron rust that cleans has unique removal effect, is family expenses, hotel, lavatory ideal clean-out system.
As known from the above, the present invention is a kind of bi-component waterborne high-efficiency multi-function protective system, can be to the metallic surface rust, and it is antirust also can to give birth to film simultaneously, is the product of a kind ofization rust, antirust dual-use function; Also can make steel and iron member realize normal temperature phosphating easily, and deoil, derust, phosphatization, passivation is integrated finishes; Its antiseptic property is good, can save because of tradition and give a large amount of acid, alkali, water and the manpower that processing exhausts, and no waste water produces, and environmental benefit is good.
Embodiment
Embodiment 1: a kind of bi-component waterborne high-efficiency multi-function protective system, to form by A component and B component, and the weight part composition of described component is:
(1) A component:
250 parts of phosphoric acid,
22.5 parts of zinc nitrates,
3.5 parts in zinc oxide,
4 parts of ammonium molybdates,
3 parts of citric acids,
3 parts of trolamines,
2.5 parts in tartrate,
1.5 parts in hexadecyl phenyl ring acid sodium,
270 parts in water;
(2) B component:
250 parts of phosphoric acid,
22.5 parts of zinc nitrates,
3.5 parts in zinc oxide,
3 parts in nitrocalcite,
5 parts in hydrogen peroxide;
270 parts in water.
Embodiment 2: a kind of bi-component waterborne high-efficiency multi-function protective system, to form by A component and B component, and the weight part composition of described component is:
(1) A component:
200 parts of phosphoric acid,
20 parts of zinc nitrates,
2 parts in zinc oxide,
2 parts of ammonium molybdates,
2 parts of citric acids,
2 parts of trolamines,
2 parts in tartrate,
1 part in hexadecyl phenyl ring acid sodium,
240 parts in water;
(2) B component:
200 parts of phosphoric acid,
20 parts of zinc nitrates,
2 parts in zinc oxide,
2 parts in nitrocalcite,
4 parts in hydrogen peroxide;
240 parts in water.
Embodiment 3: a kind of bi-component waterborne high-efficiency multi-function protective system, to form by A component and B component, and the weight part composition of described component is:
(1) A component:
300 parts of phosphoric acid,
25 parts of zinc nitrates,
5 parts in zinc oxide,
6 parts of ammonium molybdates,
4 parts of citric acids,
4 parts of trolamines,
3 parts in tartrate,
2 parts in hexadecyl phenyl ring acid sodium,
300 parts in water;
(2) B component:
300 parts of phosphoric acid,
25 parts of zinc nitrates,
5 parts in zinc oxide,
4 parts in nitrocalcite,
6 parts in hydrogen peroxide;
300 parts in water.
Claims (1)
1. a bi-component waterborne high-efficiency multi-function protective system is made up of A component and B component, and the weight part composition of described component is:
(1) A component:
Phosphoric acid 200-300 part,
Zinc nitrate 20-25 part,
Zinc oxide 2-5 part,
Ammonium molybdate 2-6 part,
Citric acid 2-4 part,
Trolamine 2-4 part,
Tartrate 2-3 part,
Hexadecyl phenyl ring acid sodium 1-2 part,
Water 240-300 part;
(2) B component:
Phosphoric acid 200-300 part,
Zinc nitrate 20-25 part,
Zinc oxide 2-5 part,
Nitrocalcite 2-4 part,
Hydrogen peroxide 4-6 part;
Water 240-300 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101605094A CN102234796A (en) | 2010-04-30 | 2010-04-30 | Double-component water-based efficient multifunctional anticorrosive coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101605094A CN102234796A (en) | 2010-04-30 | 2010-04-30 | Double-component water-based efficient multifunctional anticorrosive coating |
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| Publication Number | Publication Date |
|---|---|
| CN102234796A true CN102234796A (en) | 2011-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760916A (en) * | 2019-11-18 | 2020-02-07 | 和县科嘉阀门铸造有限公司 | Method for improving corrosion resistance of magnesium alloy valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497713A (en) * | 1982-04-01 | 1985-02-05 | Betz Laboratories | Method of inhibiting corrosion and deposition in aqueous systems |
| CN1210904A (en) * | 1998-07-06 | 1999-03-17 | 王梅 | Zinc-calcium series phosphorization liquid for metal plastic working |
| US20030047244A1 (en) * | 2000-05-31 | 2003-03-13 | Masaki Oyama | Aqueous metal surface treating agent |
-
2010
- 2010-04-30 CN CN2010101605094A patent/CN102234796A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497713A (en) * | 1982-04-01 | 1985-02-05 | Betz Laboratories | Method of inhibiting corrosion and deposition in aqueous systems |
| CN1210904A (en) * | 1998-07-06 | 1999-03-17 | 王梅 | Zinc-calcium series phosphorization liquid for metal plastic working |
| US20030047244A1 (en) * | 2000-05-31 | 2003-03-13 | Masaki Oyama | Aqueous metal surface treating agent |
Non-Patent Citations (1)
| Title |
|---|
| 黄霓裳等: "新型常温低渣磷化液", 《腐蚀与防护》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760916A (en) * | 2019-11-18 | 2020-02-07 | 和县科嘉阀门铸造有限公司 | Method for improving corrosion resistance of magnesium alloy valve |
| CN110760916B (en) * | 2019-11-18 | 2022-04-05 | 和县科嘉阀门铸造有限公司 | Method for improving corrosion resistance of magnesium alloy valve |
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Application publication date: 20111109 |