CN104140752A - Preparation method of waterborne polyurethane anti-rust primer with rust for steel structure - Google Patents
Preparation method of waterborne polyurethane anti-rust primer with rust for steel structure Download PDFInfo
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- CN104140752A CN104140752A CN201410213404.9A CN201410213404A CN104140752A CN 104140752 A CN104140752 A CN 104140752A CN 201410213404 A CN201410213404 A CN 201410213404A CN 104140752 A CN104140752 A CN 104140752A
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Abstract
The invention provides a preparation method of a waterborne polyurethane anti-rust primer with rust for a steel structure. The waterborne polyurethane anti-rust primer with the rust comprises the following components in percentage by weight: 20-30% of waterborne polyurethane dispersoid, 10-15% of iron oxide red powder, 2-4% of a corrosion inhibitor, 10-20% of composite phosphorus and titanium powder, 3-5% of ultra-fine aluminum hydroxide, 3-5% of environment-friendly zinc phosphate, 10-20% of precipitated barium sulfate, 2-3% of additives, 0.3-0.5% of organic bentonite, 1-2% of a co-solvent, 12.5-18.7% of deionized water and 1-2% of a coalescing agent. By adopting the preparation method provided by the invention, the shot blasting cost can be solved, and the environmental pollution can be completely solved. The waterborne polyurethane anti-rust primer is completely environmentally-friendly and standard, has a VOC (volatile organic compound) discharge quantity of less than 30, and is an excellent product applied to the coating of the steel structure; 'chelation' reaction can occur between metals and the corrosion inhibitor, the acting time of the salt spray resistance can be prolonged to 600 hours under the auxiliary effect of the composite phosphorus and titanium powder, and the comprehensive coating cost can be greatly reduced compared with that in existing oil paint. The product can be widely applied to industries such as steel structure factory buildings, bridge steel structures, engineering machines, agricultural machines, machine tools and the like.
Description
Technical field
The present invention relates to paint field, refer to especially the preparation method of the special-purpose aqueous polyurethane tape rust of a kind of steel structure rust-proofing primer.
Background technology
Along with people strengthen day by day to environmental protection consciousness; require also more and more stronger to the feature of environmental protection of coating products; on existing market, 80% steel construction manufacturer still adopts traditional oily antirust varniss; and the shot-blast apparatus that Meteorological is larger carries out Shot Blasting; thereby reach antirust ability; but present this working method is very large to environment, personnel's harm, has consumed a large amount of human and material resources, damages greatly environment and reached the object of product painting.
Summary of the invention
The present invention proposes the preparation method of the special-purpose aqueous polyurethane tape rust of a kind of steel structure rust-proofing primer, and the priming paint of making has the advantages that dry speed is fast, hardness is high, and the steel that get rusty are had to excellent sticking power, and salt fog resistance can reach more than 600 hours.
Technical scheme of the present invention is achieved in that the preparation method of the special-purpose aqueous polyurethane tape rust of a kind of steel structure rust-proofing primer, comprises aqueous polyurethane dispersion 20-30%, ferric oxide red powder 10-15%, inhibiter 2-4%, compound phosphorus titanium valve 10-20%, ultrafine aluminium hydroxide 3-5%, environmental protection zinc phosphate 3-5%, process white 10-20%, auxiliary agent 2-3%, organobentonite 0.3-0.5%, solubility promoter 1-2%, deionized water 12.5-18.7%, film coalescence aid 1-2%;
Described production technique comprises: aqueous polyurethane dispersion, neutralizing agent add and stir and control pH value, add the organobentonite after deionized water, solubility promoter activation, add aqueous dispersant, water-based suds suppressor, anti-sudden strain of a muscle rust agent and stir, stir and add inhibiter, ferric oxide red powder, process white, compound phosphorus titanium valve, ultrafine aluminium hydroxide, environmental protection zinc phosphate, disperse and grind, add water-based defoamer, water-based flow agent, aqueous wetting agent, antimildew disinfectant after dilution, then add film coalescence aid to stir; Adjust spray viscosity, certainly dry, slaking after spraying, test salt spray resistance.
As preferably, described auxiliary agent comprises: aqueous dispersant, water-based suds suppressor, water-based defoamer, water-based flow agent, aqueous wetting agent, the agent of anti-sudden strain of a muscle rust, neutralizing agent, antimildew disinfectant.
As preferably, described concrete technology is:
A. aqueous polyurethane dispersion, neutralizing agent are added and adopt 400-600 rev/min to stir 5-10 minute, test pH value, is controlled at pH value between 8-9;
B. after adopting deionized water, solubility promoter that organobentonite is fully activated, add and produce in cylinder;
C. adopt deionized water by adding and produce in cylinder after aqueous dispersant, water-based suds suppressor, anti-sudden strain of a muscle rust dilution agent, adopt 400-600 rev/min to stir 5-10 minute;
D. limit adopt 400-600 rev/min add while stirring inhibiter, ferric oxide red powder, process white, compound phosphorus titanium valve, ultrafine aluminium hydroxide, environmental protection zinc phosphate, adopt 600-800 rev/min to disperse 15-20 minute, adopt sand mill to be ground to fineness and reach 50 microns;
E. adopt deionized water to produce in cylinder adding after water-based defoamer, water-based flow agent, aqueous wetting agent, antimycotic antiseptic dilution agent, add film coalescence aid, adopt 600-800 rev/min to stir 5-10 minute, test pH value, is controlled at pH value between 8-9 with neutralizing agent.
Dry plate is realized: directly adopt deionized-distilled water to carry out the adjustment of spray viscosity, spray viscosity is adjusted into 20-30S(NK-2 cup), spraying layer 2-3, dry plate is placed in 25 DEG C of thermostat containers from dry 48 hours detection traditional performances, slaking was tested salt spray resistance after 7 days, and the dry plate film thickness of salt spray resistance is controlled at 90-100 μ m.
Compared with prior art, the invention has the advantages that: a kind of aqueous polyurethane band rust rust-proofing primer is provided, not only solve the cost of ball blast but also thoroughly solved the pollution to environment, the complete environmental protection standard of the present invention, the quantity discharged of VOC is lower than 30, utilized inhibiter and metal that " chelating " occurs reacts simultaneously, and under compound phosphorus titanium valve auxiliary, salt spray resistance is promoted to 600 hours, comprehensive painting cost, than now greatly declining with oil-base paint, is a superior prod that is applied to steel structure coating.This product is extensively used should be in industries such as steel-structure factory building, Bridge Steel structure, engineering machinery, farm machinery, lathes.
Embodiment
To the technical scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment:
Raw material is as follows:
Aqueous polyurethane dispersion (PU-608 Guangzhou hat will chemical industry)
Ferric oxide red powder (190 new capital chemical industry)
Compound phosphorus titanium valve (X-500 Changzhou crowd is general)
Ultrafine aluminium hydroxide (the prosperous industry chemical industry of 5000 order aluminium hydroxide)
Environmental protection zinc phosphate (PZ20 encircles outstanding chemical industry)
Process white (3000 order ultra-fine barium sulfate Shanghai jump river)
Dispersion agent (PX4585 BASF)
Suds suppressor (river, A363 sea chemical industry)
Defoamer (NXZ section is peaceful)
Flow agent (57 this chemistry of sea inscription)
Wetting agent (440 U.S.'s gas)
Mould inhibitor (the outstanding bright material of DFX-1)
Inhibiter (the beautiful refining in the refining 60# of petroleum sodium sulfonate Wuxi)
Organobentonite (this chemistry of LT sea inscription)
Film coalescence aid (ethylene glycol monobutyl ether LG-DOW)
Auxiliary agent agent (ethylene glycol chemical industry shop)
Neutralizing agent (this chemistry of AMP-95 sea inscription)
Anti-sudden strain of a muscle rust agent (river, SJ-09 sea chemical industry)
Described auxiliary agent comprises: aqueous dispersant, water-based suds suppressor, water-based defoamer, water-based flow agent, aqueous wetting agent, the agent of anti-sudden strain of a muscle rust, neutralizing agent, antimildew disinfectant; In auxiliary agent, between each component, equal proportion is mixed.
The component A paint formula proportioning of table 1: embodiment 1～embodiment 5
Preparation method is:
1, aqueous polyurethane dispersion, neutralizing agent are added and adopt 400-600 rev/min to stir 5-10 minute, test pH value, is controlled at pH value between 8-9;
2, adopting deionized water, solubility promoter to add after organobentonite is fully activated produces in cylinder;
3, adopt deionized water by adding and produce in cylinder after aqueous dispersant, water-based suds suppressor, anti-sudden strain of a muscle rust dilution agent, adopt 400-600 rev/min to stir 5-10 minute;
4, limit adopt 400-600 rev/min add while stirring inhibiter, ferric oxide red powder, process white, compound phosphorus titanium valve, ultrafine aluminium hydroxide, environmental protection zinc phosphate, adopts 600-800 rev/min dispersion 15-20 minute.Adopt sand mill to be ground to fineness and reach 50 microns;
5, adopt deionized water to produce in cylinder adding after water-based defoamer, water-based flow agent, aqueous wetting agent, antimycotic antiseptic dilution agent, add film coalescence aid, adopt 600-800 rev/min to stir 5-10 minute, test pH value, is controlled at pH value between 8-9 with neutralizing agent.
Performance test
Test method is: directly adopt deionized-distilled water to be diluted to spray viscosity (20-30S, NK-2 cup), get salt spray resistance test steel plate and standard-bred mouth iron plate and carry out phosphatization or grinding process, the aqueous polyurethane iron oxide red band rust rust-proofing primer having mixed up is sprayed on material, salt spray resistance tested steel plate thickness is controlled at 90-100 micron thickness, on tinplate sheet, gauge control is at the thickness of 20-30 micron, after 48 hours do solid work completely, do all-round property testing, slaking was tested salt spray resistance after 7 days.
Table 2: embodiment 1～5 dry plate the performance test results
The invention provides a kind of aqueous polyurethane band rust rust-proofing primer, not only solve the cost of ball blast but also thoroughly solved the pollution to environment, the complete environmental protection standard of the present invention, the quantity discharged of VOC is lower than 30, utilize inhibiter and metal that " chelating " occurs simultaneously and react, and under the assisting of compound phosphorus titanium valve, salt spray resistance has been promoted to 600 hours, comprehensive painting cost, than now greatly declining with oil-base paint, is a superior prod that is applied to steel structure coating.This product is extensively used should be in industries such as steel-structure factory building, Bridge Steel structure, engineering machinery, farm machinery, lathes.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a preparation method for the special-purpose aqueous polyurethane tape rust of steel structure rust-proofing primer, is characterized in that: comprise aqueous polyurethane dispersion 20-30%, ferric oxide red powder 10-15%, inhibiter 2-4%, compound phosphorus titanium valve 10-20%, ultrafine aluminium hydroxide 3-5%, environmental protection zinc phosphate 3-5%, process white 10-20%, auxiliary agent 2-3%, organobentonite 0.3-0.5%, solubility promoter 1-2%, deionized water 12.5-18.7%, film coalescence aid 1-2%;
Described production technique comprises: aqueous polyurethane dispersion, neutralizing agent add and stir and control pH value, add the organobentonite after deionized water, solubility promoter activation, add aqueous dispersant, water-based suds suppressor, anti-sudden strain of a muscle rust agent and stir, stir and add inhibiter, ferric oxide red powder, process white, compound phosphorus titanium valve, ultrafine aluminium hydroxide, environmental protection zinc phosphate, disperse and grind, add water-based defoamer, water-based flow agent, aqueous wetting agent, antimildew disinfectant after dilution, then add film coalescence aid to stir; Adjust spray viscosity, certainly dry, slaking after spraying, test salt spray resistance.
2. the preparation method of the special-purpose aqueous polyurethane tape rust of steel structure according to claim 1 rust-proofing primer, is characterized in that: described auxiliary agent comprises: aqueous dispersant, water-based suds suppressor, water-based defoamer, water-based flow agent, aqueous wetting agent, the agent of anti-sudden strain of a muscle rust, neutralizing agent, antimildew disinfectant.
3. the preparation method of the special-purpose aqueous polyurethane tape rust of steel structure according to claim 1 and 2 rust-proofing primer, is characterized in that: described concrete technology is:
A. aqueous polyurethane dispersion, neutralizing agent are added and adopt 400-600 rev/min to stir 5-10 minute, test pH value, is controlled at pH value between 8-9;
B. after adopting deionized water, solubility promoter that organobentonite is fully activated, add and produce in cylinder;
C. adopt deionized water by adding and produce in cylinder after aqueous dispersant, water-based suds suppressor, anti-sudden strain of a muscle rust dilution agent, adopt 400-600 rev/min to stir 5-10 minute;
D. limit adopt 400-600 rev/min add while stirring inhibiter, ferric oxide red powder, process white, compound phosphorus titanium valve, ultrafine aluminium hydroxide, environmental protection zinc phosphate, adopt 600-800 rev/min to disperse 15-20 minute, adopt sand mill to be ground to fineness and reach 50 microns;
E. adopt deionized water to produce in cylinder adding after water-based defoamer, water-based flow agent, aqueous wetting agent, antimycotic antiseptic dilution agent, add film coalescence aid, adopt 600-800 rev/min to stir 5-10 minute, test pH value, is controlled at pH value between 8-9 with neutralizing agent.
Dry plate is realized: directly adopt deionized-distilled water to carry out the adjustment of spray viscosity, spray viscosity is adjusted into 20-30S(NK-2 cup), spraying layer 2-3, dry plate is placed in 25 DEG C of thermostat containers from dry 48 hours detection traditional performances, slaking was tested salt spray resistance after 7 days, and the dry plate film thickness of salt spray resistance is controlled at 90-100 μ m.
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| CN201410213404.9A CN104140752B (en) | 2014-05-20 | 2014-05-20 | The preparation method of steel structure special-purpose aqueous polyurethane tape rust rust-proofing primer |
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| CN201410213404.9A CN104140752B (en) | 2014-05-20 | 2014-05-20 | The preparation method of steel structure special-purpose aqueous polyurethane tape rust rust-proofing primer |
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| CN104140752B CN104140752B (en) | 2016-04-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219253A (en) * | 2015-10-08 | 2016-01-06 | 江苏华夏制漆科技有限公司 | A kind of asphalt modification epoxy phosphate zinc heavy antisepsis priming paint and preparation method thereof |
| CN105295480A (en) * | 2015-11-26 | 2016-02-03 | 江苏有能电力自动化有限公司 | Novel wind speed detection probe |
| CN106047133A (en) * | 2016-06-30 | 2016-10-26 | 广西梧州龙鱼漆业有限公司 | Aqueous anti-rusting primer and preparation method thereof |
| CN107880764A (en) * | 2017-10-11 | 2018-04-06 | 湖南文理学院 | A kind of water based shop primer, preparation method and application |
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| CN102108245A (en) * | 2010-12-20 | 2011-06-29 | 深圳市中科立涛科技有限公司 | Waterborne polyester modified epoxy polyurethane anticorrosive paint and preparation method thereof |
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| DE202013000271U1 (en) * | 2013-01-11 | 2013-02-11 | Vestocor GmbH | Paint system for hazardous areas and areas with high corrosive load |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101724336A (en) * | 2009-12-24 | 2010-06-09 | 北京联飞翔科技股份有限公司 | Coating material and preparation method thereof |
| CN102108245A (en) * | 2010-12-20 | 2011-06-29 | 深圳市中科立涛科技有限公司 | Waterborne polyester modified epoxy polyurethane anticorrosive paint and preparation method thereof |
| CN102618159A (en) * | 2012-03-31 | 2012-08-01 | 广州集泰化工有限公司 | Water-based polyurethane anticorrosive coating for containers and preparation method for coating |
| CN102993810A (en) * | 2012-11-28 | 2013-03-27 | 天长市开林化工有限公司 | General water-based quick-drying anti-rust paint and preparation method thereof |
| DE202013000271U1 (en) * | 2013-01-11 | 2013-02-11 | Vestocor GmbH | Paint system for hazardous areas and areas with high corrosive load |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219253A (en) * | 2015-10-08 | 2016-01-06 | 江苏华夏制漆科技有限公司 | A kind of asphalt modification epoxy phosphate zinc heavy antisepsis priming paint and preparation method thereof |
| CN105295480A (en) * | 2015-11-26 | 2016-02-03 | 江苏有能电力自动化有限公司 | Novel wind speed detection probe |
| CN106047133A (en) * | 2016-06-30 | 2016-10-26 | 广西梧州龙鱼漆业有限公司 | Aqueous anti-rusting primer and preparation method thereof |
| CN107880764A (en) * | 2017-10-11 | 2018-04-06 | 湖南文理学院 | A kind of water based shop primer, preparation method and application |
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| CN104140752B (en) | 2016-04-13 |
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