CN100575437C - A kind of epoxy organosilicon anticorrosion paint and preparation method thereof - Google Patents
A kind of epoxy organosilicon anticorrosion paint and preparation method thereof Download PDFInfo
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- CN100575437C CN100575437C CN200710098668A CN200710098668A CN100575437C CN 100575437 C CN100575437 C CN 100575437C CN 200710098668 A CN200710098668 A CN 200710098668A CN 200710098668 A CN200710098668 A CN 200710098668A CN 100575437 C CN100575437 C CN 100575437C
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Abstract
A kind of epoxy organosilicon anticorrosion paint and preparation method thereof belongs to Mg alloy surface corrosionproof protection technical field of coatings.Coating is filmogen with epoxy silicone resin ES-06, polyamide 6 50 is a solidifying agent, also comprise rust-stabilising pigment chromium zinc yellow, strontium yellow and zinc molybdate, pigment extender titanium dioxide, mica, talcum powder, defoamer 550, the solvent of dispersion agent TM-950 and employing dimethylbenzene and propyl carbinol preparation, advantage is, coating can ambient cure, maximum adhesion power can reach 1 grade, snappiness 0.5mm, shock strength 50kg.cm, the salt fog cumulative time can reach 360h, and coating has good basic physicals and excellent erosion resistance.The present invention adopts orthogonal experiment method to determine to have the optimal components proportioning of the anticorrosive coating of premium properties.And with low cost, technology is simple.
Description
Technical field
The invention belongs to Mg alloy surface corrosionproof protection technical field of coatings, particularly relate to a kind of epoxy organosilicon anticorrosion paint and preparation method thereof.
Background technology
MAGNESIUM METAL and alloy thereof are the lightest structural metallic materialss in the present industrial application, have high specific tenacity, specific rigidity and advantages of good casting.Therefore, magnesium alloy becomes the preferred material of industries such as Hyundai Motor, electronics.But because the current potential of magnesium is more negative, very easily passivation, and oxide film is loose, so corrosion stability of magnesium alloy is relatively poor, this has limited its application greatly, so the surface protection of magnesium alloy has become a problem demanding prompt solution.
Magnesium alloy anticorrosion measure at present mainly contains preparation, the surface modification of high purity alloys and applies protective layer.With respect to other guard method, adopt coating protection, cost is low and technology is simple, is the good method of a kind of cheapness and effect, is adopted by increasing motor corporation.
Epoxy silicone resin is to be backbone structure with the siloxane bond, on its end group and side chain, introduce epoxide group, therefore, make it have the moistureproof electrical insulation capability of organosilicon heatproof concurrently, the Resins, epoxy cohesive force stronger to base material arranged again, corrosion-resistant, anti-solvent and favorable mechanical performance, and can utilize general epoxy curing agent to carry out low-temperature curing, bring convenience to construction.Coating with its ingredients has low-temperature curing, the hot and humid characteristics of using down with corrosive environment.
A lot of both at home and abroad, but seldom about the report that increases the Mg alloy surface erosion resistance for the report of the method for improving the metallic surface erosion resistance, prepare the epoxy organosilicon protection against corrosion at Mg alloy surface and film and also do not report for work.
Summary of the invention
The object of the invention is to provide a kind of epoxy organosilicon anticorrosion paint and preparation method thereof, prepares to be used for the epoxy organosilicon coating that Mg alloy surface has good Corrosion Protection.Mg alloy surface anti-corrosion method complex process, too high, the unfavorable problem of effect of cost have been solved.But film-forming under this coating normal temperature, technology simple possible, with low cost and the basic physicals and the fine corrosion resistance of filming.
The coating of the present invention's preparation is filmogen with epoxy silicone resin ES-06, polyamide 6 50 is a solidifying agent, also comprise rust-stabilising pigment chromium zinc yellow, strontium yellow and zinc molybdate, pigment extender titanium dioxide, mica, talcum powder, defoamer 550, the solvent of dispersion agent TM-950 and employing dimethylbenzene and propyl carbinol preparation.The ratio of each component is: the mass ratio of epoxy silicone resin and polymeric amide is 10: 1; Resin-pigment ratio is 1: 1; The mass ratio of dimethylbenzene and propyl carbinol is 7: 3 in the solvent; With chromium zinc yellow, strontium yellow, zinc molybdate, titanium dioxide, mica, defoamer, dispersion agent, talcum powder quality summation is 100%; The quality percentage composition of the following component of adding is: 10%～30% chromium zinc yellow, 2%～6% strontium yellow, 10%～30% zinc molybdate, 8%～10% titanium dioxide, 10%～20% mica, 0.1%～0.4% defoamer, 0.3%～0.6% dispersion agent, the talcum powder of surplus.
The concrete steps of coating preparation of the present invention are:
(1) gets 30～50 parts of epoxy silicone resins and 30～50 parts of solvent, add 0.1～0.4 part of defoamer, 0.3～0.6 part of dispersion agent, mechanical stirring 15～20 minutes;
(2) get 10～30 parts of chromium zinc yellows, 2～6 parts of strontium yellows, 10～30 parts of zinc molybdates, 8～10 parts of titanium dioxides, 10～20 parts of micas, 3～59 parts of talcum powder add in the above-mentioned resin system, shear and grind 30～40 minutes;
(3) get 50～70 parts of epoxy silicone resins and 50～70 parts of solvent, add (2) and go on foot in the solution that makes mechanical stirring 30～40 minutes;
(4) get 3～4 parts of solvents and mix, join in the solution of (3) step preparation, stir and promptly obtain this coating with 8～12 parts of polymeric amide.
The invention has the advantages that coating can ambient cure, maximum adhesion power can reach 1 grade, snappiness 0.5mm, shock strength 50kg.cm, and the salt fog cumulative time can reach 360h.The present invention adopts orthogonal experiment method to determine to have the optimal components proportioning of the anticorrosive coating of premium properties.It has with low cost, technology characteristic of simple.Coating has good basic physicals and excellent erosion resistance.
Description of drawings
Fig. 1 is an appearance of film.
Fig. 2 is the influence of resin-pigment ratio to the basic physicals of filming.
Fig. 3 is the influence of the add-on of chromium zinc yellow to the salt spray resistance of filming.
Fig. 4 is the influence of the add-on of strontium yellow to the salt spray resistance of filming.
Fig. 5 is the influence of the add-on of zinc molybdate to the salt spray resistance of filming.
Fig. 6 is a salt fog process floating coat sticking power changing conditions.
Embodiment
(1) gets 50 parts of epoxy silicone resins and 50 parts of solvent, add 0.4 part of defoamer, 0.6 part of dispersion agent, mechanical stirring 15 minutes;
(2) get 20 parts of chromium zinc yellows, 4 parts of strontium yellows, 20 parts of zinc molybdates, 10 parts of titanium dioxides, 20 parts of micas, 25 parts of talcum powder add in the above-mentioned resin system, shear and grind 30 minutes;
(3) get 50 parts of epoxy silicone resins and 50 parts of solvent, join in the solution of (2) step preparation mechanical stirring 30 minutes;
(4) get 4 parts of solvents and mix, join (3) and go on foot in the solution for preparing, stir promptly with 10 parts of polymeric amide.
Embodiment 2
(1) gets 50 parts of epoxy silicone resins and 50 parts of solvent, add 0.4 part of defoamer, 0.6 part of dispersion agent, mechanical stirring 15 minutes;
(2) get 2 parts of strontium yellows, 30 parts of zinc molybdates, 10 parts of titanium dioxides, 20 parts of micas, 37 parts of talcum powder add in the above-mentioned resin system, shear and grind 30 minutes;
(3) get 50 parts of epoxy silicone resins and 50 parts of solvent, join in the solution of (2) step preparation mechanical stirring 30 minutes;
(4) get 4 parts of solvents and mix, join (3) and go on foot in the solution for preparing, stir promptly with 10 parts of polymeric amide.
Embodiment 3
(1) gets 50 parts of epoxy silicone resins and 50 parts of solvent, add 0.4 part of defoamer, 0.6 part of dispersion agent, mechanical stirring 15 minutes;
(2) get 10 parts of chromium zinc yellows, 6 parts of strontium yellows, 10 parts of titanium dioxides, 20 parts of micas, 53 parts of talcum powder add in the above-mentioned resin system, shear and grind 30 minutes;
(3) get 50 parts of epoxy silicone resins and 50 parts of solvent, join in the solution of (2) step preparation mechanical stirring 30 minutes;
(4) get 4 parts of solvents and mix, join (3) and go on foot in the solution for preparing, stir promptly with 10 parts of polymeric amide.
Embodiment 4
(1) gets 50 parts of epoxy silicone resins and 50 parts of solvent, add 0.4 part of defoamer, 0.6 part of dispersion agent, mechanical stirring 15 minutes;
(2) get 30 parts of chromium zinc yellows, 10 parts of zinc molybdates, 10 parts of titanium dioxides, 20 parts of micas, 29 parts of talcum powder add in the above-mentioned resin system, shear and grind 30 minutes;
(3) get 50 parts of epoxy silicone resins and 50 parts of solvent, join in the solution of (2) step preparation mechanical stirring 30 minutes;
(4) get 4 parts of solvents and mix, join (3) and go on foot in the solution for preparing, stir promptly with 10 parts of polymeric amide.
Concrete enforcement of the present invention is not limited to above embodiment.
Select embodiment 1 to do the film performance analysis.
The basic physicals of filming
The basic physicals of filming is measured by GB, and test result sees attached list 1.As can be known, the basic physicals of filming is good from table.
The erosion resistance of filming
Salt air corrosion 210h, film coated surface begins to occur the foaming phenomenon, is coated with film destroy during 300h.Fig. 6 is film adhesive test curve in the salt air corrosion process.From then on curve is found out, before salt mist experiment 144h, the sticking power of sample changes less, and the accumulation salt air corrosion time has reached 360h.
The subordinate list 1 basic physicals of filming
Claims (2)
1, a kind of epoxy organosilicon anticorrosion paint, it is characterized in that, with epoxy silicone resin ES-06 is filmogen, polyamide 6 50 is a solidifying agent, also comprise rust-stabilising pigment chromium zinc yellow, strontium yellow and zinc molybdate, pigment extender titanium dioxide, mica, talcum powder, defoamer 550, the solvent of dispersion agent TM-950 and employing dimethylbenzene and propyl carbinol preparation; The ratio of each component is: the mass ratio of epoxy silicone resin and polymeric amide is 10: 1; Resin-pigment ratio is 1: 1; The mass ratio of dimethylbenzene and propyl carbinol is 7: 3 in the solvent; With chromium zinc yellow, strontium yellow, zinc molybdate, titanium dioxide, mica, defoamer, dispersion agent, talcum powder quality summation is 100%; The quality percentage composition of the following component of adding is: 10%～30% chromium zinc yellow, 2%～6% strontium yellow, 10%～30% zinc molybdate, 8%～10% titanium dioxide, 10%～20% mica, 0.1%～0.4% defoamer, 0.3%～0.6% dispersion agent, the talcum powder of surplus.
2, a kind of method for preparing the described epoxy organosilicon anticorrosion paint of claim 1 is characterized in that, processing step is:
(1) gets 30～50 parts of epoxy silicone resins and 30～50 parts of solvent, add 0.1～0.4 part of defoamer, 0.3～0.6 part of dispersion agent, mechanical stirring 15～20 minutes;
(2) get 10～30 parts of chromium zinc yellows, 2～6 parts of strontium yellows, 10～30 parts of zinc molybdates, 8～10 parts of titanium dioxides, 10～20 parts of micas, 3～59 parts of talcum powder add in the above-mentioned resin system, shear and grind 30～40 minutes;
(3) get 50～70 parts of epoxy silicone resins and 50～70 parts of solvent, add (2) and go on foot in the solution that makes mechanical stirring 30～40 minutes;
(4) get 3～4 parts of solvents and mix, join in the solution of (3) step preparation, stir, obtain this coating with 8～12 parts of polymeric amide.
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| CN200710098668A CN100575437C (en) | 2007-04-24 | 2007-04-24 | A kind of epoxy organosilicon anticorrosion paint and preparation method thereof |
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| CN100575437C true CN100575437C (en) | 2009-12-30 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101892010B (en) * | 2009-05-22 | 2013-06-19 | 北京化工大学 | High-temperature-hot-water corrosion resisting coating |
| CN101921516B (en) * | 2009-10-28 | 2012-07-04 | 北京航空航天大学 | Aqueous antiseptic transparent coating suitable for steel surface and preparation method thereof |
| CN103965777B (en) * | 2014-05-16 | 2017-02-15 | 无锡华东锌盾科技有限公司 | High-temperature-resistant, acid-resistant and anticorrosive coating for inner wall of chimney |
| CN106046879A (en) * | 2016-06-02 | 2016-10-26 | 合肥中澜新材料科技有限公司 | Preparation method of wood flooring anticorrosion coating |
| CN108343073A (en) * | 2016-07-11 | 2018-07-31 | 惠安县灿鑫新材料科技有限公司 | A kind of antirust agent and preparation method thereof |
| CN111019424B (en) * | 2019-12-04 | 2021-07-23 | 北京科技大学 | Vacuum ceramic microbead heat-insulating anticorrosive paint for steel structure equipment and preparation method thereof |
| CN116507681A (en) * | 2020-10-05 | 2023-07-28 | 巴斯夫涂料有限公司 | Screening method using coating composition properties or wet film properties |
| CN114736609A (en) * | 2022-04-11 | 2022-07-12 | 广东安捷伦新材料科技有限公司 | Insulating paint for electric automobile |
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Non-Patent Citations (9)
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Owner name: COSCO KANSAI PAINT + CHEMICALS (TIANJIN) CO., LTD. Free format text: FORMER OWNER: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING Effective date: 20111208 |
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Effective date of registration: 20111208 Address after: 300457 No. fifth, 42 Avenue, Tianjin economic and Technological Development Zone Patentee after: COSCO Kansai Paint & Chemicals Co.,Ltd. Address before: 100083 Haidian District, Xueyuan Road, No. 30, Patentee before: University of Science and Technology Beijing |
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