CN1352221A - Anti-corrosion metal powder paint - Google Patents
Anti-corrosion metal powder paint Download PDFInfo
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- CN1352221A CN1352221A CN 00132739 CN00132739A CN1352221A CN 1352221 A CN1352221 A CN 1352221A CN 00132739 CN00132739 CN 00132739 CN 00132739 A CN00132739 A CN 00132739A CN 1352221 A CN1352221 A CN 1352221A
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Abstract
The anticorrosive metal powder paint is a kind of aluminium containing inorganic zinc powder paint and is produced by mixing main component in 70-95 wt% of dry film and adhesive in 5-30 wt%. The main component is mainly metal powder mixture of aluminum powder in 1-25 wt% metal powder mixture or 0.7-24 wt% of dry film and zinc powder.
Description
The present invention system is meant a kind of aluminiferous zinc powder priming paint especially about a kind of anti-corrosion metal powder paint.
Zinc has the corrosion protection result of excellent galvanic protection, and this characteristic is known by people.On ferrous materials, if energy coating last layer often has good effect against corrosion based on the protective layer of zinc.And that the method for steel surface coating zinc has is a variety of, for example: galvanizing.Zinc powder priming paint and hot plasma spraying etc.Wherein coated zinc powder priming paint is general and the most most widely used present method.
In recent years; galvanizing often adds aluminium element and increases its corrosion stability, and its effect also obtains proof, but hot-dip process often need consume the more energy; and the workpiece of immersion plating also regular meeting is subjected to restrictions such as size, shape, so the galvanizing aluminium alloy has its inconvenient part.
This case contriver commonly uses the every shortcoming of corrosion protection technology institute deutero-in view of above-mentioned ferrous materials, resolution is improved innovation, and after concentrating on studies through taking great pains to attain one's goal for many years, finally successfully this part anti-corrosion metal powder paint is finished in research and development, and this coating can utilize spraying method to implement the metallic surface corrosion protection and handle.In order to utilize zinc-effect of aluminium surface coating corrosion protection and accessibility and the simplification of improving construction, the present invention is a method of utilizing oil paint coating, develops aluminiferous inorganic zinc powder coating, to promote the effect of corrosion protection.
Order of the present invention promptly is to provide a kind of anti-corrosion metal powder paint, and it is in pure zinc powder priming paint, add an amount of aluminium powder according to specific ratio after, can utilize spraying method to implement the metallic surface corrosion protection and handle.According to electrochemical test and salt spray testing result, confirm that zinc of the present invention-aluminum metal powder primer has better corrosion protection result than pure zinc powder priming paint.
Of the present invention time a purpose ties up in a kind of anti-corrosion metal powder paint is provided, it not only can improve solidity to corrosion, and can reduce the phenomenon that traditional zinc powder priming paint produces zinc white significantly, have the tack of japanning and finish paint in the raising and simplify the sorrow point of follow-up painting operation.
Another object of the present invention ties up in a kind of anti-corrosion metal powder paint is provided, it is implemented the metallic surface corrosion protection with spraying method and handles, not only do not need consumes energy, that more can improve corrosion protection construction makes things convenient for part and simplification, is not subjected to the size of workpiece of pending corrosion protection operation and the restriction of shape simultaneously.
Can reach the anti-corrosion metal powder paint of foregoing invention purpose, main system utilizes the method for oil paint coating, develops aluminiferous inorganic zinc powder coating, to improve the effect of corrosion protection.According to coating material prescription of the present invention, earlier the sandblast pre-treatment is done in test piece, make the test piece surface reach the standard of NACE 2/sspc-sp10, in the mode of spraying, coating material is coated in the test piece again; And then carry out electrochemical test.Salt spray testing and scanning type electron microscopic (SEM) fabric analysis, the assessment of carrying out its anti-corrosion character confirms.
According to a feature of the present invention, in the dry film of this coating material, its metal-powder weight percent is about 70-95 weight %; And aluminium powder is approximately the 1-25 weight % of metal-powder, accounts for the weight percent 7-24 weight % of whole dry film.
See also the detailed description and the accompanying drawing thereof of following relevant a preferred embodiment of the present invention, can further understand technology contents of the present invention and purpose effect thereof; The accompanying drawing of relevant this embodiment is:
Fig. 1 is the prescription test piece of the variant embodiment of anti-corrosion metal powder paint provided by the present invention, open circuit potential in the sodium chloride aqueous solution of 35 weight percents and time changing curve figure;
Fig. 2 is the prescription test piece of the variant embodiment of anti-corrosion metal powder paint provided by the present invention, does the anti-red rust assessment of salt spray testing after 2000 hours according to ASTM B117 standard and relatively reaches change curve;
Fig. 3 is the prescription test piece of the variant embodiment of anti-corrosion metal powder paint provided by the present invention, does the anti-white rust assessment of salt spray testing after 2000 hours according to ASTM B117 standard and relatively reaches change curve;
Fig. 4 is 10S, 15S test piece and the commercially available galvanizing steel disc among the variant embodiment of anti-corrosion metal powder paint provided by the present invention, the assessment comparison diagram after 660 hours salt spray testings;
Fig. 5 is 10S, the 15S test piece among the variant embodiment of anti-corrosion metal powder paint provided by the present invention, the assessment comparison diagram after 2400 hours salt spray testings;
Fig. 6 is the formed coatings cross-section tissue of anti-corrosion metal powder paint embodiment provided by the present invention and aluminium, zinc element distribution plan; And
Fig. 7 is the formed coating of anti-corrosion metal powder paint embodiment provided by the present invention, after 4000 hours, show that coating still remains intact through salt spray testing, and the surperficial macrostructure that base material is not etched schemes and cross section metallographic structure figure.
Anti-corrosion metal powder paint provided by the present invention mainly is a kind of aluminiferous inorganic zinc powder coating, and in the film of this coating material, the weight percent of its metal-powder is 70-95 weight %; And aluminium powder accounts for 1～25% of metal-powder greatly, accounts for the weight percent 7～24% of whole dry film.
This host that contains aluminium inorganic zinc powder coating is mainly by aluminium powder and zinc powder mixes the metal-powder of forming, all the other constituents include for example anti-settling agent and a small amount of specific organic or inorganic resin and the solvent of Claytone HY, this resin can use PVB (B08M), and the solvent that can vapor away then can use dimethylbenzene (I.B.A.) at last.
Contain the tackiness agent (secondary agent) of aluminium inorganic zinc powder coating as for this, major ingredient is ethyl silicate (Ethyl Silicate 40) or Resins, epoxy.
This contains the employed metallic aluminium powder of aluminium inorganic zinc powder coating is flat fine aluminium or Al-alloy metal powder.
Wherein, the blending ratio of the aluminium powder of metal-powder and zinc powder in the coating dry film can be made different prescription test pieces according to following table.
" aluminium powder in the coating dry film/zinc powder different ratios formula table "
| The prescription preface | ????0S | ????5S | ????10S | ????15S | ????25S | ????35S | Remarks |
| Aluminium powder ratio % | ????0 | ????5 | ????10 | ????15 | ????25 | ????35 | Metallic powdery pigment part in the dry film is all on 70% weight percent |
| Zinc powder ratio % | ????100 | ????95 | ????90 | ????85 | ????75 | ????65 |
As above show made different embodiment; can be by various known experimental techniques; verify its chemical property; wherein; the measuring result of its electrochemistry open circuit potential is shown in Fig. 1; by the current potential that can learn the variant Example formulations test piece of anti-corrosion metal powder paint provided by the present invention among the figure all-below the 1000mVsce, (be low 720mVsce), have the galvanic protection characteristic of quite excellent sacrificial anode than the current potential of iron and steel.
Be shown in Fig. 2,3,4,5 as for its salt spray testing assessment result.Wherein Fig. 2 shows the prescription test piece of the variant embodiment of anti-corrosion metal powder paint provided by the present invention, the graph of a relation of anti-red rust ability and aluminium content, and this evaluation criteria is the assessment on no scratch surface among the ASTM D610.By learning aluminum content among the figure, there is not red rust to generate the following person of 15 weight %.Fig. 3 shows the prescription test piece of the variant embodiment of anti-corrosion metal powder paint provided by the present invention, the graph of a relation of anti-white rust ability and aluminium content, this evaluation criteria is the assessment on no scratch surface among the similar ASTM D610, by learning aluminum content among the figure the above person of 15 weight %, does not have white rust to generate.And Fig. 4 shows the 10S among the variant embodiment of anti-corrosion metal powder paint provided by the present invention, 15S test piece and commercially available galvanizing test piece (Hot Drip Zn), through salt spray testing after 660 hours, the comparison of each test piece surface corrosion state, the present invention's 10S, 15S test piece have excellent significantly performance as can be known.Fig. 5 shows this 10S, 15S test piece, has the corrosion protection result of salt spray testing standard more than high ten times than " inorganic zinc primer powder " CNS (CNS4937), promptly more than 2400 hours.
The new coatings cross-section metallographic structure Mapping that forms analyzes in the various embodiments of the present invention, as shown in Figure 6, shows that metal-powder in the various embodiments of the present invention is formed by the zinc powder of spherical 5～7 μ m and the aluminium powder of tabular 20～30 μ m.Fig. 7 shows the test piece of eigen Example formulations, through salt spray testing after 4000 hours, observe or observe by surface optical, can learn the test piece of eigen example formulations, still have excellent corrosion protection result through the metallographic structure of scanning electronic microscope (SEM) cross section.
Anti-corrosion metal powder paint provided by the present invention when comparing mutually with located by prior art, has more following advantage:
1) can utilize spraying method to implement the metallic surface corrosion protection and handle, and, confirm that zinc of the present invention-aluminum metal powder primer has better corrosion protection result than pure zinc powder priming paint according to electrochemical test and salt spray testing result:
2) anti-corrosion metal powder paint of the present invention not only can improve solidity to corrosion, and can reduce the phenomenon that traditional zinc powder priming paint produces zinc white significantly, has the tack of japanning and finish paint in the raising and simplifies the advantage of follow-up painting operation; And
3) the present invention implements the metallic surface corrosion protection with spraying method and handles, and does not only need consumes energy, more can improve the accessibility and the simplification of corrosion protection construction, is not subjected to the size of workpiece of pending corrosion protection operation and the restriction of shape simultaneously.
Above-listed detailed description is specifying at possible embodiments of the present invention, but these embodiment are not in order to limit claim of the present invention, allly do not break away from the equivalence that skill spirit of the present invention does and implement or change, all should be contained in the claim scope of this case.
Claims (7)
1. anti-corrosion metal powder paint, it is characterized in that it mainly being a kind of aluminiferous inorganic zinc powder coating, this coating is to be that the host of 70-95 weight % and tackiness agent uniform mixing that weight percent is 5-30 weight % form by weight percent in the dry film of this coating; Wherein host is mainly mixed the metal-powder of forming by aluminium powder and zinc powder, and aluminium powder accounts for the 1-25 weight % of this metal-powder, i.e. the 7-24 weight % of the weight percent of whole dry film.
2. anti-corrosion metal powder paint according to claim 1 is characterized in that also including in this host a spot of anti-settling agent and specific organic or inorganic resin and solvent.
3. anti-corrosion metal powder paint according to claim 1, wherein this tackiness agent major ingredient is a tetraethyl silicate.
4. anti-corrosion metal powder paint according to claim 1 is characterized in that this tackiness agent major ingredient is a Resins, epoxy.
5. anti-corrosion metal powder paint according to claim 1 is characterized in that this aluminium powder is a kind of pure aluminum metal powder.
6. anti-corrosion metal powder paint according to claim 1 is characterized in that this aluminium powder is a kind of Al-alloy metal powder.
7. anti-corrosion metal powder paint according to claim 1 is characterized in that this aluminium powder is tabular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00132739 CN1352221A (en) | 2000-11-15 | 2000-11-15 | Anti-corrosion metal powder paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00132739 CN1352221A (en) | 2000-11-15 | 2000-11-15 | Anti-corrosion metal powder paint |
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| Publication Number | Publication Date |
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| CN1352221A true CN1352221A (en) | 2002-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00132739 Pending CN1352221A (en) | 2000-11-15 | 2000-11-15 | Anti-corrosion metal powder paint |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074337B (en) * | 2007-06-25 | 2010-12-08 | 沈阳市航达科技有限责任公司 | Zinc-aluminum composite plating coating and its production |
| CN103509385A (en) * | 2013-09-04 | 2014-01-15 | 安徽祈艾特电子科技有限公司 | Zinc-based heavy-duty anticorrosion powder paint |
| CN103788726A (en) * | 2012-11-02 | 2014-05-14 | 中冶建筑研究总院有限公司 | Antistatic paint for steel structure surface and preparation method thereof |
| CN108047934A (en) * | 2017-12-20 | 2018-05-18 | 上海海隆赛能新材料有限公司 | A kind of steel construction fire-resistant anticorrosion paint |
| CN111979550A (en) * | 2020-08-11 | 2020-11-24 | 神华神东煤炭集团有限责任公司 | Sacrificial anode compound and preparation method thereof |
-
2000
- 2000-11-15 CN CN 00132739 patent/CN1352221A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074337B (en) * | 2007-06-25 | 2010-12-08 | 沈阳市航达科技有限责任公司 | Zinc-aluminum composite plating coating and its production |
| CN103788726A (en) * | 2012-11-02 | 2014-05-14 | 中冶建筑研究总院有限公司 | Antistatic paint for steel structure surface and preparation method thereof |
| CN103788726B (en) * | 2012-11-02 | 2017-05-24 | 中冶建筑研究总院有限公司 | Antistatic paint for steel structure surface and preparation method thereof |
| CN103509385A (en) * | 2013-09-04 | 2014-01-15 | 安徽祈艾特电子科技有限公司 | Zinc-based heavy-duty anticorrosion powder paint |
| CN108047934A (en) * | 2017-12-20 | 2018-05-18 | 上海海隆赛能新材料有限公司 | A kind of steel construction fire-resistant anticorrosion paint |
| CN111979550A (en) * | 2020-08-11 | 2020-11-24 | 神华神东煤炭集团有限责任公司 | Sacrificial anode compound and preparation method thereof |
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