CN105111908A - Primer-topcoat combined anti-corrosion paint suitable for various base materials and preparation method thereof - Google Patents
Primer-topcoat combined anti-corrosion paint suitable for various base materials and preparation method thereof Download PDFInfo
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- CN105111908A CN105111908A CN201510580253.5A CN201510580253A CN105111908A CN 105111908 A CN105111908 A CN 105111908A CN 201510580253 A CN201510580253 A CN 201510580253A CN 105111908 A CN105111908 A CN 105111908A
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Abstract
The invention discloses primer-topcoat combined anti-corrosion paint suitable for various base materials. The anti-corrosion paint is prepared from, by weight, 7-10 parts of components A and 1 part of components B in a combined mode, wherein the components A is prepared from, by weight, 30-45% of low hydroxyl acrylic acid resin, 6-14% of solvent, 1.8-5 parts of auxiliaries, 0.5-2% of organic bentonite, 0.5-2% of hydrophobic fumed silica, 31-57% of pigment filler and 0.2-1% of leveling agent; the components B is prepared from, by weight, 45-55% of hexamethylene diisocyanate tripolymer and 45-55% of solvent. A preparation method includes the steps that the solvent is added into the low hydroxyl acrylic acid resin, the auxiliaries, the organic bentonite, the hydrophobic fumed silica and the pigment filler are added, stirring and grinding are performed, the viscosity is adjusted, impurities are removed, and then the components A are obtained; the hexamethylene diisocyanate tripolymer and the solvent are mixed to obtain the components B, and the components A and the components B are mixed according to the proportion. The primer-topcoat combined anti-corrosion paint has excellent adhesive force for aluminum products, stainless steel plates and galvanized sheets, has physical and mechanical properties of salt spray resistance and others of anti-corrosion primers, and is excellent in water resistance, acid and alkali resistance and weather resistance, wherein the weather resistance is over 1200 hours.
Description
Technical field
The present invention relates to chemical anticorrosion paint field, specifically refer to and be a kind ofly suitable for undersurface syncretic anti-corrosion paint of multiple base material and preparation method thereof.
Background technology
The topic of building a conservation-minded society at present by called optical imaging, exploitation more effectively, the protective system of easy construction with imperative, to meet the demand of Different Industries; Aluminium, stainless steel plate, galvanized sheet are extensively adopted by industry because of the non-corrosibility of excellence, the non-corrosibility of their excellences is all from one deck inertia on its surface, the sull of low surface energy, and the inertia of this layer of sull and low surface energy, often make coating can not secure adhesion.Also have the coating products of some publicity bottom surface unifications in the market, be substantially all some common polyurethane base unification product, it does not possess has good sticking power to aluminium, stainless steel plate, galvanized sheet etc.
Summary of the invention
The object of the present invention is to provide a kind of undersurface syncretic anti-corrosion paint being suitable for multiple base material being coated on the multiple base materials such as aluminium of not polishing, zinc-plated sheet material, stainless steel surface.
Another object of the present invention is to provide this to be suitable for the concrete preparation method of the undersurface syncretic anti-corrosion paint of multiple base material.
The present invention is achieved through the following technical solutions: a kind of undersurface syncretic anti-corrosion paint being suitable for multiple base material, by first component and second component according to 7 ~ 10: 1 ratio of weight and number combine, wherein, the solvent phase of the use of first component and second component with:
First component comprises following composition, and percentage ratio is than representing by weight
Second component comprises following composition, and percentage ratio is than representing by weight
Hexamethylene diisocyanate trimer 45 ~ 55%
Solvent 45 ~ 55%
The solvent phase of the use of first component and second component is same.
First component is main film forming, and additive, and second component is mainly solidifying agent, solidifying agent is also very important concerning coating property, for the film of excellent performance of system, adopt the low viscous aliphatics of high solid or alicyclic solidifying agent, hexamethylene diisocyanate trimer has that fast drying, hardness of paint film are higher, solid divides high, viscosity is lower, is applicable to preparing high solid coating.
Matrix resin is chosen as low hydroxyl value acrylic resin, introduce ionic group in this acrylic resin on polymer chain, form ion condensation body, thus improve the mechanical property of resin and the performance of polymkeric substance itself, improve adhesion performances such as aluminium, stainless steel plate, galvanized sheets; The major absorbance peak of acrylic resin is in outside solar spectrum scope, and acrylic resin has excellent performance, and look shallow, weathering resistance is good, and weather resistance is exposed to the sun by force in open air, and ultraviolet resistance irradiates and not easily decomposes or turn yellow, and can keep original gloss and color and luster very well.Acrylic resin has good chemicals-resistant pickup and corrosion resistance nature.
The ratio of weight and number of first component and second component, determines the proportioning of-OH base and-NCO base in antifouling paste of the present invention.The proportioning of-OH base and-NCO base and level of response all affect the cross-linking density of paint film.NCO/OH equivalence ratio can 0.8-1.5 in a big way in change, NCO/OH equivalence ratio lower than 1.0 time, OH base can not complete reaction, and the good solubility-resistence of paint film, water resisting property, chemical resistance and hardness all decline, and even paint film feels like jelly.When NCO/OH equivalence ratio is greater than 1.0, then can increase cross-linking density, improve solvent resistance, chemical-resistant, but the moisture that unnecessary NCO can absorb in air react, cause paint film to become fragile, the sticking power of paint film to base materials such as aluminium, stainless steel plate, galvanized sheets can reduce.The present invention adopts NCO/OH equivalence ratio to be 1.05-1.15:1 excellent combination property.
In order to realize the present invention better, further, by component overall weight percent than represent, described auxiliary agent primarily of 0.5 ~ 2% dispersion agent, 0.3 ~ 1% defoamer, 3 ~ 7% solubility promoter, and 1 ~ 2% UV light absorber composition.
In order to realize the present invention better, further, by overall weight percent in component than representing, described color stuffing is primarily of 15-25% rutile titanium white powder, the nontoxic modified zinc phosphate of 4-8%, 5-8% modification aluminium triphosphate, 3-8% sericite in powder, and 4-8% talcum powder composition.Adopt nontoxic modified zinc phosphate, modification aluminium triphosphate, sericite in powder, talcum powder, rutile titanium white powder as color stuffing, the present invention is made to possess excellent corrosion resistance nature and weathering resistance, talcum powder can improve the precipitation threshold of coating, the mechanical force of film and coating again, rutile titanium white powder not only provides color and ornamental, possesses good weathering resistance simultaneously.
In order to realize the present invention better, further, the structure of described sericite in powder is sheet, and granularity is 600 ~ 800 orders.Its structure is sheet, can improve protection against corrosion and the impermeabilisation function of paint for priming paint and top lacquer, and granularity is that 600 ~ 800 orders can reach best effect, if too thin, its sheet structure will be damaged, and can reduce its impermeabilisation function.
In order to realize the present invention better, further, described solvent is the mixing solutions of dimethylbenzene and n-butyl acetate.
Be suitable for a preparation method for the undersurface syncretic anti-corrosion paint of multiple base material, comprise the following steps:
(1) in the container that low Hydroxylated acrylic resin is housed, add solvent, use the rotating speed of 800 ~ 1000r/min to stir, low Hydroxylated acrylic resin is uniformly dispersed in a solvent;
(2) add auxiliary agent, organobentonite and hydrophobic fumed silica in whipping process, stir 10 ~ 15 minutes;
(3) add color stuffing again, improve mixing speed to 1200 ~ 1500r/min, and be placed in the environment lower than 50 degrees Celsius, stir 15 ~ 20 minutes;
(4) use sand mill to grind the mixture after gained stirring in step (3), finally add flow agent again and use the rotating speed of 800 ~ 1000r/min to stir 15 ~ 25 minutes;
(5) add solvent, adjustment viscosity to 90 ± 5Ku/30 DEG C, elimination impurity, obtains first component;
(6) by hexamethylene diisocyanate trimer and solvent, second component after stirring, is obtained;
(7) first component and second component are stirred in proportion at 7 ~ 10: 1, the undersurface syncretic anti-corrosion paint of multiple base material must be suitable for.
In order to realize method of the present invention better, further, in described step (4), the mixture after using shredder to be stirred by gained in step (3) is ground to fineness≤40 μm.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) of the present invention have excellent sticking power to aluminium, stainless steel plate, galvanized sheet etc., and possess the physical and mechanical propertiess such as the salt fog resistance of anti-corrosion primer, possess again good water tolerance, resistance to acids and bases, weathering resistance, its weathering resistance is more than 1200 hours;
(2) the present invention is to aluminium, stainless steel plate, galvanized sheet sticking power excellence, antifouling paste twice 100-130 of the present invention μm rot-resistant effect with usually to do anti-corrosion primer and add twice finish paint to be about 120-150 μm of supporting anticorrosion ability suitable, can operating efficiency be improved cost-saving;
(3) the inventive method operating process is simple, comparatively fast can prepare the antifouling paste described in the present invention preferably, suitable wide popularization and application.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto, without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacement and change, all should comprise within the scope of the invention.
The study route that the present invention is concrete, by to multiple base material undersurface syncretic anti-corrosion paint, multiple base material undersurface syncretic anti-corrosion paint, the market study of specific function filler, determine research object, the kind of main film forming substance and specific function filler, probably determine the formula of multiple base material undersurface syncretic anti-corrosion paint, then the test sample of multiple base material acroleic acid polyurethane paint for priming paint and top lacquer is prepared, performance analysis is carried out to test sample, the report that last bonding properties is analyzed, the formula of multiple base material undersurface syncretic anti-corrosion paint is adjusted, the formula of final acquisition invention product, as follows:
Be suitable for a undersurface syncretic anti-corrosion paint for multiple base material, by first component and second component according to 7 ~ 10: 1 ratio of weight and number combine, wherein:
First component comprises following composition, and percentage ratio is than representing by weight
Second component comprises following composition, and percentage ratio is than representing by weight
Hexamethylene diisocyanate trimer 45 ~ 55%
Solvent 45 ~ 55%.
Wherein, the solvent phase of the use of first component and second component is same, preferred solvent is the mixing solutions of dimethylbenzene and n-butyl acetate, color stuffing is 15-25% rutile titanium white powder, the nontoxic modified zinc phosphate of 4-8%, 5-8% modification aluminium triphosphate, 3-8% sericite in powder, and the talcous composition of 4-8%, auxiliary agent is dispersion agent, 0.3 ~ 1% defoamer of 0.5 ~ 2%, and the UV light absorber of 1 ~ 2%.
Wherein, sericite in powder is primarily of silicon-dioxide, aluminium dioxide, aluminum oxide, and magnesium oxide composition, and the structure of sericite in powder is sheet, and granularity is 600 ~ 800 orders.
This concrete preparation method of undersurface syncretic anti-corrosion paint being suitable for multiple base material comprises the following steps:
(1) in the container that low Hydroxylated acrylic resin is housed, add solvent, use the rotating speed of 800 ~ 1000r/min to stir, low Hydroxylated acrylic resin is uniformly dispersed in a solvent;
(2) add auxiliary agent, organobentonite and hydrophobic fumed silica in whipping process, stir 10 ~ 15 minutes;
(3) add color stuffing again, improve mixing speed to 1200 ~ 1500r/min, and be placed in the environment lower than 50 degrees Celsius, stir 15 ~ 20 minutes;
(4) use sand mill to grind the mixture after gained stirring in step (3), finally add flow agent again and use the rotating speed of 800 ~ 1000r/min to stir 15 ~ 25 minutes;
(5) add solvent, adjustment viscosity to 90 ± 5Ku/30 DEG C, elimination impurity, obtains first component;
(6) by hexamethylene diisocyanate trimer and solvent, second component after stirring, is obtained;
(7) first component and second component are stirred in proportion at 7 ~ 10: 1, the undersurface syncretic anti-corrosion paint of multiple base material must be suitable for.
Detect gained antifouling paste, detected result is as shown in the table:
Embodiment 1:
Be suitable for a undersurface syncretic anti-corrosion paint for multiple base material, by first component and second component according to 7: 1 ratio of weight and number combine, wherein:
First component comprises following composition, and percentage ratio is than representing by weight
Second component comprises following composition, and percentage ratio is than representing by weight
Hexamethylene diisocyanate trimer 49.20%
Solvent 50.80%.
Embodiment 2:
Be suitable for a undersurface syncretic anti-corrosion paint for multiple base material, by first component and second component according to 10: 1 ratio of weight and number combine, wherein:
First component comprises following composition, and percentage ratio is than representing by weight
Second component comprises following composition, and percentage ratio is than representing by weight
Hexamethylene diisocyanate trimer 51.77%
Solvent 48.23%
Embodiment 3:
Be suitable for a undersurface syncretic anti-corrosion paint for multiple base material, by first component and second component according to 8: 1 ratio of weight and number combine, wherein:
First component comprises following composition, and percentage ratio is than representing by weight
Second component comprises following composition, and percentage ratio is than representing by weight
Hexamethylene diisocyanate trimer 48.00%
Solvent 52.00%
Embodiment 4:
Be suitable for a undersurface syncretic anti-corrosion paint for multiple base material, by first component and second component according to 9: 1 ratio of weight and number combine, wherein:
First component comprises following composition, and percentage ratio is than representing by weight
Second component comprises following composition, and percentage ratio is than representing by weight
Hexamethylene diisocyanate trimer 54.00%
Solvent 46.00%
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: do not departing under principle of the present invention and aim and can carry out multiple change, amendment, replacement and modification to these embodiments, scope of the present invention is by claim and equivalents thereof.
Claims (7)
1. be suitable for a undersurface syncretic anti-corrosion paint for multiple base material, it is characterized in that: by first component and second component according to 7 ~ 10: 1 ratio of weight and number combine, wherein:
First component comprises following composition, and percentage ratio is than representing by weight
Low Hydroxylated acrylic resin 30 ~ 45%
Solvent 6 ~ 14%
Auxiliary agent 1.8 ~ 5%
Organobentonite 0.5 ~ 2%
Hydrophobic fumed silica 0.5 ~ 2%
Color stuffing 31 ~ 57%
Flow agent 0.2 ~ 1%
Second component comprises following composition, and percentage ratio is than representing by weight
Hexamethylene diisocyanate trimer 45 ~ 55%
Solvent 45 ~ 55%
The solvent phase of the use of first component and second component is same.
2. a kind of undersurface syncretic anti-corrosion paint being suitable for multiple base material according to claim 1, it is characterized in that: by overall weight percent in component than representing, described auxiliary agent primarily of 0.5 ~ 2% dispersion agent, 0.3 ~ 1% defoamer, and 1 ~ 2% UV light absorber composition.
3. a kind of undersurface syncretic anti-corrosion paint being suitable for multiple base material according to claim 1 and 2, it is characterized in that: by overall weight percent in component than representing, described color stuffing is primarily of 15-25% rutile titanium white powder, the nontoxic modified zinc phosphate of 4-8%, 5-8% modification aluminium triphosphate, 3-8% sericite in powder, and 4-8% talcum powder composition.
4. a kind of undersurface syncretic anti-corrosion paint being suitable for multiple base material according to claim 3, is characterized in that: the structure of described sericite in powder is sheet, and granularity is 600 ~ 800 orders.
5. a kind of undersurface syncretic anti-corrosion paint being suitable for multiple base material according to claim 1 and 2, is characterized in that: described solvent is the mixing solutions of dimethylbenzene and n-butyl acetate.
6., according to a kind of preparation method being suitable for the undersurface syncretic anti-corrosion paint of multiple base material described in claim 1 ~ 5, it is characterized in that: comprise the following steps:
(1) in the container that low Hydroxylated acrylic resin is housed, add solvent, use the rotating speed of 800 ~ 1000r/min to stir, low Hydroxylated acrylic resin is uniformly dispersed in a solvent;
(2) add auxiliary agent, organobentonite and hydrophobic fumed silica in whipping process, stir 10 ~ 15 minutes;
(3) add color stuffing again, improve mixing speed to 1200 ~ 1500r/min, and be placed in the environment lower than 50 degrees Celsius, stir 15 ~ 20 minutes;
(4) use sand mill to grind the mixture after gained stirring in step (3), finally add flow agent again and use the rotating speed of 800 ~ 1000r/min to stir 15 ~ 25 minutes;
(5) add solvent, adjustment viscosity to 90 ± 5Ku/30 DEG C, elimination impurity, obtains first component;
(6) by hexamethylene diisocyanate trimer and solvent, second component after stirring, is obtained;
(7) first component and second component are stirred in proportion at 7 ~ 10: 1, the undersurface syncretic anti-corrosion paint of multiple base material must be suitable for.
7. a kind of preparation method being suitable for the undersurface syncretic anti-corrosion paint of multiple base material according to claim 6, is characterized in that: in described step (4), and the mixture after using shredder to be stirred by gained in step (3) is ground to below 40 μm of granularities.
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Cited By (11)
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| CN105524544A (en) * | 2016-01-08 | 2016-04-27 | 上海海隆赛能新材料有限公司 | Super-weather-resistant self-cleaning high-anticorrosive undercoat-topcoat-integrated protective coating material |
| CN105802462A (en) * | 2016-03-29 | 2016-07-27 | 株洲市九华新材料涂装实业有限公司 | Polyurethane paint for modified PP material and preparation method of paint |
| CN106800850A (en) * | 2016-12-23 | 2017-06-06 | 安徽景昌铝业有限公司 | A kind of outer layer protection coating of injecting glue aluminium alloy extrusions and preparation method thereof |
| CN107418408A (en) * | 2017-08-23 | 2017-12-01 | 中铁第四勘察设计院集团有限公司 | Railway Ballast track bridge concrete bridge floor methacrylate resin modified polyurethane water-proof paint and preparation method thereof |
| CN109266156A (en) * | 2018-08-28 | 2019-01-25 | 雅图高新材料有限公司 | A kind of water-based primer-topcoat in one type paint and preparation method thereof |
| CN111286241A (en) * | 2020-03-20 | 2020-06-16 | 立邦工业涂料(上海)有限公司 | Acrylic resin coating with integrated bottom and top and preparation method thereof |
| CN112011264A (en) * | 2020-08-31 | 2020-12-01 | 山推工程机械股份有限公司 | Multifunctional coating and application thereof |
| CN112094540A (en) * | 2020-09-25 | 2020-12-18 | 中昊北方涂料工业研究设计院有限公司 | Special rubber protective primer |
| CN112980308A (en) * | 2021-02-23 | 2021-06-18 | 湖南工业大学 | Polyurethane primer and application thereof |
| CN114989717A (en) * | 2022-07-21 | 2022-09-02 | 武汉沃克菲诺涂装技术有限公司 | Preparation and application of paint special for outer wall of cast pipe |
| CN115368790A (en) * | 2022-06-28 | 2022-11-22 | 湖南梓先新材料有限公司 | Primer-topcoat coating and preparation method thereof |
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| CN105524544A (en) * | 2016-01-08 | 2016-04-27 | 上海海隆赛能新材料有限公司 | Super-weather-resistant self-cleaning high-anticorrosive undercoat-topcoat-integrated protective coating material |
| CN105524544B (en) * | 2016-01-08 | 2018-05-11 | 上海海隆赛能新材料有限公司 | Unify protective coating in extra-weather-proof automatically cleaning heavy antisepsis bottom surface |
| CN105802462B (en) * | 2016-03-29 | 2019-04-02 | 株洲市九华新材料涂装实业有限公司 | A kind of MODIFIED PP material polyurethane paint and preparation method thereof |
| CN105802462A (en) * | 2016-03-29 | 2016-07-27 | 株洲市九华新材料涂装实业有限公司 | Polyurethane paint for modified PP material and preparation method of paint |
| CN106800850A (en) * | 2016-12-23 | 2017-06-06 | 安徽景昌铝业有限公司 | A kind of outer layer protection coating of injecting glue aluminium alloy extrusions and preparation method thereof |
| CN107418408A (en) * | 2017-08-23 | 2017-12-01 | 中铁第四勘察设计院集团有限公司 | Railway Ballast track bridge concrete bridge floor methacrylate resin modified polyurethane water-proof paint and preparation method thereof |
| CN109266156A (en) * | 2018-08-28 | 2019-01-25 | 雅图高新材料有限公司 | A kind of water-based primer-topcoat in one type paint and preparation method thereof |
| CN111286241A (en) * | 2020-03-20 | 2020-06-16 | 立邦工业涂料(上海)有限公司 | Acrylic resin coating with integrated bottom and top and preparation method thereof |
| CN111286241B (en) * | 2020-03-20 | 2021-09-21 | 立邦工业涂料(上海)有限公司 | Acrylic resin coating with integrated bottom and top and preparation method thereof |
| CN112011264A (en) * | 2020-08-31 | 2020-12-01 | 山推工程机械股份有限公司 | Multifunctional coating and application thereof |
| CN112094540A (en) * | 2020-09-25 | 2020-12-18 | 中昊北方涂料工业研究设计院有限公司 | Special rubber protective primer |
| CN112094540B (en) * | 2020-09-25 | 2022-03-15 | 中昊北方涂料工业研究设计院有限公司 | Special rubber protective primer |
| CN112980308A (en) * | 2021-02-23 | 2021-06-18 | 湖南工业大学 | Polyurethane primer and application thereof |
| CN115368790A (en) * | 2022-06-28 | 2022-11-22 | 湖南梓先新材料有限公司 | Primer-topcoat coating and preparation method thereof |
| CN114989717A (en) * | 2022-07-21 | 2022-09-02 | 武汉沃克菲诺涂装技术有限公司 | Preparation and application of paint special for outer wall of cast pipe |
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Application publication date: 20151202 |