CN101781521B - Paint and coating - Google Patents
Paint and coating Download PDFInfo
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- CN101781521B CN101781521B CN200910105107A CN200910105107A CN101781521B CN 101781521 B CN101781521 B CN 101781521B CN 200910105107 A CN200910105107 A CN 200910105107A CN 200910105107 A CN200910105107 A CN 200910105107A CN 101781521 B CN101781521 B CN 101781521B
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Abstract
The invention discloses a pain and a coating. The paint comprises resin, zinc powder, aluminite powder, solvent and lubricant, wherein the lubricant contains graphite. The abrasive resistance of the coating prepared by the paint disclosed by the invention is obviously improved; the degree of wear of the coating is reduced when the coating is worn; and the decay resistance of the paint disclosed by the invention is also obviously improved.
Description
[technical field]
The present invention relates to a kind of coating and a kind of coating, especially a kind of Dyclo paint of anticorrosion antiwear and the coating that forms by this Dyclo paint.
[background technology]
As everyone knows, metal standing stock in the earth are all very abundant, and since their particular performances separately in aerospace, automotive industry, telecommunications etc. and people's life, obtained using very widely.But simple substance such as some metal such as aluminium, iron, zinc and magnesium and alloy thereof belong to the very active metallic substance of chemical property, and corrosion resistance nature is not high under atmosphere or particular environment, thereby being applied in to a great extent of they is restricted.
In order to address this problem, the researchist has done a large amount of work its surface treatment method has been carried out deep research, and the surface treatment method of at present common metallic substance has plating, chemical oxidation, electrochemical oxidation and coating covering etc.But; Through these conventional treatment processs drawback is arranged respectively still: still do not have sophisticated electroplating technology up to now like magnesiumalloy; Though aluminium, iron, zinc and alloy thereof have the electroplating technology of comparative maturity, complex procedures, cost be higher, can not the complex-shaped workpiece of plating; Chemical oxidation and electrochemical oxidation are used to spray prime coat at present mostly, use its erosion resistance, wear resistance to wait under many circumstances separately and have still satisfied not requirement; Conventional coating soverlay technique often exists that coating adhesion is not good, erosion resistance and the shortcoming that wears no resistance.
The 1950's, the Dacroment coating technology originates from U.S. ocean company, and Japanese NDS company impels its industriallization.It is to be coated on iron and steel and the alloy base material thereof with the Dacroment masking liquid that lepidiod zinc powder or aluminum zinc powder, chromic salt etc. are made into, the sheet zinc-base chromic salt protective coating that behind hot setting, forms, i.e. Dacroment coating (transliteration of " DACROMET ").Because this coating technology has extraordinary anticorrosive, no hydrogen embrittlement, high temperature resistant, pollution-free, characteristics such as use characteristics is superior, be generalized to industries such as all over the world automobile, railway, machinofacture rapidly, and received consistent favorable comment.But this coating wear resistance is relatively poor, and especially when two parts that with this coating are the interface produced relative movement under big pressure, this coating the big area scuffing can occur even come off, and influences its further application.
[summary of the invention]
Relatively poor in order to overcome in the prior art Dacroment coating wear resistance, the invention discloses a kind of coating, the coating wear resistance that is formed by this coating is good.
Coating disclosed by the invention comprises resin, zinc powder, aluminium powder, solvent and lubricant, and said lubricant contains graphite.
The invention also discloses a kind of coating, contain resin, zinc powder, aluminium powder and lubricant, said lubricant contains graphite.
In the prior art, the Dacroment coating wear resistance is relatively poor, especially when with this coating be two parts at interface when big pressure produces relative movement down, the problem of this coating wear resistance difference is more outstanding, the big area scuffing can occur even comes off.The coating abrasion performance that adopts coating disclosed by the invention to obtain is significantly improved, and can reduce coating in the degree of wear that receives when rubbing; And what the corrosion resistance nature of coating disclosed by the invention also obtained significantly improves
[embodiment]
The invention discloses a kind of coating, comprise resin, zinc powder, aluminium powder, solvent and lubricant, said lubricant contains graphite.
In coating disclosed by the invention, contain lubricant, during like graphite, can obviously improve the wear resisting property of coatingsurface, especially can be reduced in the coatingsurface heavy wear that friction caused under the big pressure.And the contriver finds that because the existence of lubricant provided by the invention, the wearing and tearing of coatingsurface reduce, and have also reduced the local corrosion of bringing owing to wearing and tearing to a certain extent, have improved the Corrosion Protection of coating.
For reaching the better wear resistance ability, can also comprise SP 1 in the said coating.Said SP 1 can be commercially available, like the nm-class boron nitride of Hefei Kai Er Nano-technology Development Ltd production.
In traditional Dacroment coating, metal powder can form protective layer, can play the effect of isolating corrosive medium well, and coating has good anti-permeability, water-intake rate is low, effectively block water, oxygen, SO
2, the corrosive medium erosion too early such as cl ions to matrix.Simultaneously, zinc in the Dacroment coating and aluminium can form galvanic cell with matrix, and under the corrodibility condition, zinc and aluminium will be by preferential corrosion.In addition, the electropotential of aluminium is lower than zinc, and aluminium can play restraining effect to the consumption of zinc again, thereby the protection base material avoids its corrosive to take place.Contriver of the present invention finds that unexpectedly when containing graphite in the coating disclosed by the invention, after the formation coating, the graphite that is scattered in the coating also can significantly improve its corrosion resistance nature when improving coating wear resistance.
The median size of lubricant of the present invention can change in a big way, and for better improving the abrasion property ability, the median size of said lubricant is 50-400nm, is preferably 50-100nm.The lubricant of median size in above-mentioned scope can be commercially available, like the nano-graphite of the safe lubrication and seal science and technology limited Company production of Qingdao China.
Said resin is this area resin commonly used, like in epoxy resin, resol, aminoresin, vinyl resin, vibrin, fluorocarbon resin, butyral resin or the urea-formaldehyde resin one or more.Said resin can be commercially available, like the epoxy resin of the bright chemical industry in Wuxi ltd production.
Said zinc powder median size is 5-50nm, is preferably 10-20nm, and said aluminium powder median size is 5-50nm, is preferably 10-20nm.Further under the preferable case, said zinc powder and aluminium powder are flakey.Said zinc powder or aluminium powder can be commercially available, like the nano zinc powder of the prosperous platinum chemical industry in Guangzhou ltd production.
Each components contents can change in a big way in the disclosed coating of the present invention; Under the preferable case; With said resin content is benchmark; Said zinc content is that 20-80wt%, content of aluminium powder are that 2-20wt%, lubricant content are that 0.5-5wt%, solvent are 5-50wt%, and further being preferably zinc content is that 20-40wt%, content of aluminium powder are that 5-10wt%, lubricant content are that 1-4wt%, solvent are 10-20wt%; Said lubricant content can further be preferably 3-4wt%.When lubricant contained multiple composition, not restriction between each component content was as long as the lubricant gross weight is in above-mentioned scope.
Can also contain solid particulate in the coating of the present invention, said solid particulate is selected from norbide, AlB
12, in the silicon nitride, aluminum oxide one or more.The median size of above-mentioned solid particulate is 10-100nm, and under the preferable case, the median size of said solid particulate is 20-50nm.Above-mentioned solid particulate can be commercially available, like the nano-silicon nitride of Hefei Kai Er Nano-technology Development Ltd production.
When also containing above-mentioned solid particulate in the coating disclosed by the invention, can improve the hardness and the intensity of coating; Because also contain lubricant in the coating, under the acting in conjunction of solid particulate and lubricant, the abrasion property of formation can obtain further raising, the probability that wearing and tearing occur reduces, and also improves corrosion resistance of coating simultaneously to a certain extent.
With said resin content is benchmark, and the content of said solid particulate is 0.5-20wt%, is preferably 1-10wt%.
For the over-all properties that makes coating is better, also contain coupling agent, passivator and tensio-active agent in the coating disclosed by the invention; With said resin content is benchmark, and the content of said coupling agent is that the content of 0.1-10wt%, said passivator is that 0.5-5wt%, surfactant content are 1-10wt%; The content that is preferably coupling agent is that the content of 1-5wt%, said passivator is that 1-3wt%, surfactant content are 1-3wt%.
It is commonly used that said coupling agent, passivator and tensio-active agent are this area, is selected from organo-silicon coupling agent, organic titanium coupling agent, the organoaluminum coupling agent one or more like said coupling agent; Said tensio-active agent is selected from one or more in wooden SULPHONIC ACID., pine tar, polyoxyethylene glycol, SEPIGEL 305, SODIUM PHOSPHATE, MONOBASIC, ammonium acetate or the Triammonium citrate; Said passivator is the tripolyphosphate ammonium.Above coupling agent, passivator and tensio-active agent all can be commercially available, like the polyoxyethylene glycol of punishment platform synthetic chemical plant production.
The solvent that the present invention adopted is this area solvent commonly used, can be alcohols (like butanols, ethanol, Virahol etc.), ketone (like MIBK, acetone, pimelinketone etc.), ether-ether class (like 2-Butoxyethyl acetate, propylene-glycol ethyl ether acetic ester etc.), ethers (ethylene glycol monobutyl ether, propylene glycol monobutyl ether etc.).
The invention also discloses the preparation method of above-mentioned coating, comprising:, contain or do not contain solid particulate, coupling agent, passivator and tensio-active agent and mix resin, zinc powder, aluminium powder, solvent and lubricant.Mixing condition is: mix 60-720min down at 40-120 ℃.
Under the preferable case; Earlier lubricant and solid particulate are mixed 60-600min with coupling agent, tensio-active agent and solvent under 60-100 ℃; Obtain dispersion liquid, then dispersion liquid is mixed 300-720min with resin, zinc powder and aluminium powder under 40-120 ℃, can obtain coating disclosed by the invention.Above-mentioned mixing all can be carried out in the high-speed mixer that this area is used always.
The invention also discloses a kind of coating, contain resin, zinc powder, aluminium powder and lubricant, said lubricant contains graphite.
The preparation method of above-mentioned coating is the method that this area is commonly used, applies at substrate surface like the coating equipment that can adopt specialty, applies as adopting Beijing to spray the protective system spraying machine that safe electromechanical equipment Ltd produces, and is cured then;
Concrete grammar can for: adopt spraying machine that the aforementioned coating that makes is sprayed at substrate surface, then 120-300 ℃ down curing 60-200min get final product.
After the curing, volatile components such as the solvent in the coating vapor away, and difficult volatiless such as resin, zinc powder, aluminium powder and lubricant stay.Event contains resin, zinc powder, aluminium powder and lubricant after being cured through above-mentioned coating in the coating of formation.
Coating wear resistance disclosed by the invention is good, fine corrosion resistance; Under lower solidification value, can form the coating of excellent corrosion resistance, reduce energy consumption; And this coating can directly be coated on substrate surface and use, and need not to form coating at this coatingsurface again.
Through embodiment the present invention is further described below.
Embodiment 1
Present embodiment is used to explain coating disclosed by the invention.
With 100 parts by weight of acrylic acid resins (vinyl resin that bright chemical plant, Wuxi ltd produces), the 50 weight part zinc powders (nano zinc powder that the prosperous platinum chemical industry in Guangzhou ltd produces; Median size is 50nm), the 12 weight part aluminium powders (nanometer aluminium powder that the prosperous platinum chemical industry in Guangzhou ltd produces; Median size is 50nm), the 3 weight part graphite (nano-graphite that the safe lubrication and seal science and technology limited Company of Qingdao China is produced; Median size is 100nm) and 40 weight part Virahols join in the high-speed mixer; Regulating the high-speed mixer rotating speed is 800rad/min, mixes 600min down at 100 ℃.
Obtain coating A1.
Embodiment 2
Present embodiment is used to explain coating disclosed by the invention.
With 100 parts by weight of acrylic acid resins (vinyl resin that bright chemical plant, Wuxi ltd produces), the 20 weight part zinc powders (nano zinc powder that the prosperous platinum chemical industry in Guangzhou ltd produces; Median size is 40nm), the 10 weight part aluminium powders (nano zinc powder that the prosperous platinum chemical industry in Guangzhou ltd produces; Median size is 40nm), the 3 weight part graphite (nano-graphite that the safe lubrication and seal science and technology limited Company of Qingdao China is produced; Median size is 100nm), the 2 weight part SP 1 (nm-class boron nitride that Hefei Kai Er Nano-technology Development Ltd produces; Median size is 50nm), the 8 weight part silicon nitrides (nano-silicon nitride that Hefei Kai Er Nano-technology Development Ltd produces; Median size is 50nm) and 35 weight part Virahols join in the high-speed mixer; Regulating the high-speed mixer rotating speed is 500rad/min, mixes 600min down at 100 ℃.
Obtain coating A2.
Embodiment 3
Present embodiment is used to explain coating disclosed by the invention.
With the 3 weight part graphite (nano-graphite that the safe lubrication and seal science and technology limited Company of Qingdao China is produced; Median size is 100nm), the 2 weight part aluminum oxide (aluminum oxide that the prosperous platinum chemical industry in Guangzhou ltd produces; Median size is 50nm), 1 parts by weight of ethylene ethyl triethoxy silicane alkane, 1 weight part SEPIGEL 305,1 weight part tripolyphosphate ammonium and 30 parts by weight of ethanol join in the high-speed mixer; Regulating the high-speed mixer rotating speed is 500rad/min; Mix 500min down at 90 ℃, obtain dispersion liquid A31.
With the above-mentioned dispersion liquid A31 that makes and 100 parts by weight of acrylic acid resins (vinyl resin that bright chemical plant, Wuxi ltd produces), the 30 weight part zinc powders (nano zinc powder that the prosperous platinum chemical industry in Guangzhou ltd produces; Median size is 30nm), the 8 weight part aluminium powders (nanometer aluminium powder that the prosperous platinum chemical industry in Guangzhou ltd produces; Median size is 30nm); Regulating the high-speed mixer rotating speed is 700rad/min, mixes 720min down at 50 ℃.
Obtain coating A3.
Comparative Examples 1
This Comparative Examples is used to explain coating of the prior art.
The prescription of coating is identical with embodiment 1 with the preparation method, and different is not contain graphite.
Obtain coating D1.
Comparative Examples 2
This Comparative Examples is used to explain coating of the prior art.
The prescription of coating is identical with embodiment 3 with the preparation method, and different is not contain graphite.
Obtain coating D2.
Performance test
The above-mentioned coating A1-A3 that makes and D1, D2 are coated on Nd-Fe-B alloys (Ningbo gold is closed magnet ltd and produced) surface; Concrete coating method is: adopt Beijing to spray protective system spraying machine that safe electromechanical equipment Ltd produces at the rubidium ferroboron substrate surface above-mentioned coating A1-A3 that makes of spraying and D1, D2; Solidify 120min down at 150 ℃ then, correspondence obtains 12um thick coating sample A10, A20, A30 and D10, D20.Above coating sample A10, A20, A30 and the D10 that makes, D20 are carried out SaltSprayTest and wear resisting property test, and concrete testing method is following:
1, SaltSprayTest
Method according to GB/T 6,461 2002; Being placed on temperature to coating sample A10, A20, A30 and D10, D20 is that 35 ℃, relative humidity are 85% proofing box (southern Jiangsu, Wuxi testing installation ltd; YWX/Q-250) in, with the solution (NaCl of solution compolision: 50g/l) of the PH=6.8 10h that sprays continuously.In temperature is 40 ℃, and relative humidity is 80% interior placement of proofing box; The time of red rust spot appears in observation neodymium iron boron substrate surface.
2, wearability test
Use the RCA paper tape wear resistant instrument of model, under the effect of 175g power,, wait to be milled to when exposing base material the number of turns that the rubber wheel of recording paper strip wear resistant instrument rotates with the working speed friction sample coatings surface of 33rad/min as F350001.
Test result is as shown in table 1.
Table 1
| Sample | Salt spray resistance/h | Wear resistance/circle |
| A10 | 1246 | 3713 |
| A20 | 1249 | 3827 |
| A30 | 1267 | 3728 |
| D10 | 1090 | 3293 |
| D20 | 1108 | 3380 |
Can be found out that by the test result shown in the table 1 aspect wear resisting property, coating disclosed by the invention is compared with coating of the prior art, wear resisting property is significantly improved; Especially with the synergy of solid particulate under, its wear resisting property is further enhanced.
Aspect corrosion resistance nature, in coating, only contain lubricant, and when not containing graphite in the said lubricant, corrosion resistance of coating there is not considerable change; But when containing graphite in the lubricant, corrosion resistance of coating has produced beyond thought raising.
Claims (9)
1. a coating comprises resin, zinc powder, aluminium powder, solvent and lubricant, and said lubricant contains graphite; Also contain solid particulate in the said coating, said solid particulate is selected from norbide, AlB
12, in the silicon nitride one or more.
2. coating according to claim 1 is characterized in that: said lubricant also contains SP 1.
3. coating according to claim 1 is characterized in that: said lubricant median size is 50-400nm.
4. coating according to claim 1 is characterized in that: with said resin content is benchmark, and said zinc content is that 20-80wt%, content of aluminium powder are that 2-20wt%, lubricant content are that 0.5-5wt%, solvent are 5-50wt%.
5. coating according to claim 1 is characterized in that: said zinc powder median size is 5-50nm, and said aluminium powder median size is 5-50nm.
6. coating according to claim 1 is characterized in that: the median size of said solid particulate is 10-100nm.
7. coating according to claim 1 is characterized in that: with said resin content is benchmark, and the content of said solid particulate is 0.5-20wt%.
8. coating according to claim 1 is characterized in that: also contain coupling agent, passivator and tensio-active agent in the said coating; With said resin content is benchmark, and the content of said coupling agent is 0.1-10wt%, and the content of said passivator is 0.5-5wt%, and surfactant content is 1-10wt%.
9. a coating contains resin, zinc powder, aluminium powder and lubricant, and said lubricant contains graphite; Also contain solid particulate in the coating, said solid particulate is selected from norbide, AlB
12, in the silicon nitride one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910105107A CN101781521B (en) | 2009-01-16 | 2009-01-16 | Paint and coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910105107A CN101781521B (en) | 2009-01-16 | 2009-01-16 | Paint and coating |
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| CN101781521A CN101781521A (en) | 2010-07-21 |
| CN101781521B true CN101781521B (en) | 2012-09-05 |
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| CN200910105107A Active CN101781521B (en) | 2009-01-16 | 2009-01-16 | Paint and coating |
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Families Citing this family (15)
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| CN102464909B (en) * | 2010-11-16 | 2017-03-22 | 北京中科三环高技术股份有限公司 | Surface treatment method for chromium and zinc-free coating of neodymium-iron-boron permanent magnet material |
| CN102559006A (en) * | 2011-12-13 | 2012-07-11 | 上海安福隆涂复工业有限公司 | Black dacromet paint |
| 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 |
| CN102850831A (en) * | 2012-08-27 | 2013-01-02 | 江西省电力科学研究院 | Novel anticorrosive coating for grid fitting |
| CN103694856A (en) * | 2013-12-20 | 2014-04-02 | 海安县吉程机械有限公司 | Cold-resistant anticorrosive coating |
| CN103756388A (en) * | 2013-12-25 | 2014-04-30 | 苏州市邦成电子科技有限公司 | Antistatic coating for electronic product and preparation method for antistatic coating |
| CN104293040B (en) * | 2014-09-26 | 2016-10-05 | 嵊州市宜留机械科技有限公司 | A kind of anticorrosion car paint and preparation method thereof |
| CN104629510B (en) * | 2015-02-03 | 2017-06-27 | 大连理工大学 | The coating peeled off the preparation method of boron nitride anticorrosive paint and its obtain, the application of coating |
| CN106158986B (en) * | 2015-03-27 | 2018-03-27 | 比亚迪股份有限公司 | A kind of crystal silicon solar cell sheet and preparation method thereof |
| CN108373854A (en) * | 2016-11-18 | 2018-08-07 | 中国科学院金属研究所 | A kind of environment-friendly water-based chromium-free zinc aluminum wear proof lubricating painting materials and its preparation method and application |
| CN106833044A (en) * | 2017-02-28 | 2017-06-13 | 广州聚澜健康产业研究院有限公司 | A kind of aqueous environment protection metal anti-corrosive paint and preparation method thereof |
| CN110628257A (en) * | 2019-10-12 | 2019-12-31 | 江阴达克罗金属制品有限公司 | Self-leveling self-repairing zinc-aluminum coating and preparation method and application thereof |
| CN111171609A (en) * | 2020-01-22 | 2020-05-19 | 上海迪升防腐新材料科技有限公司 | Environment-friendly insulating masking liquid and preparation method and application thereof |
| CN111299096A (en) * | 2020-02-19 | 2020-06-19 | 绍兴顺泰机械科技有限公司 | Zinc-containing coating and preparation method thereof |
| CN112480777A (en) * | 2020-12-04 | 2021-03-12 | 广东聚航新材料研究院有限公司 | Alcohol-soluble phenolic resin zinc-rich coating and preparation method thereof |
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| CN1786091A (en) * | 2005-11-14 | 2006-06-14 | 长春吉大化学有限公司 | magnesium alloy non-chromium dacro solution paint and its preparation method |
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