CN101323948B - Low temperature curing type non-chromium passivation agent for galvanizing plate - Google Patents
Low temperature curing type non-chromium passivation agent for galvanizing plate Download PDFInfo
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- CN101323948B CN101323948B CN2008101405122A CN200810140512A CN101323948B CN 101323948 B CN101323948 B CN 101323948B CN 2008101405122 A CN2008101405122 A CN 2008101405122A CN 200810140512 A CN200810140512 A CN 200810140512A CN 101323948 B CN101323948 B CN 101323948B
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Abstract
The invention relates to a treating agent applied to the passivation of a galvanized sheet, which provides a chromium-free passivating agent of low-temperature curing type used for the galvanized sheet. The components and contents of the passivating agent of the invention comprise: 100ml of water, 5 to 10g of metal phosphate, 12 to 20ml of water-based organic resin emulsion, 3 to 8ml of water-soluble organic solvent and 2 to 5ml of phosphoric acid. The galvanized sheet provided by the invention adopts chromium-free passivating agent of low-temperature curing type as a substitute for chromate passivation agent, and therefore, a passivation layer of colorless and transparent can be obtained after the passivating agent solidifies under the condition of above PMT60 DEG C for 3s. The agent of the invention can meet the requirement for the passivating agent of low-temperature curing type of domestic due to insufficient curing ability of the roll coating section of majority production line of galvanized sheet. The agent of the invention has relatively high economic efficiency and social benefit.
Description
Technical field
The present invention relates to a kind of galvanized sheet be carried out the treatment agent of Passivation Treatment, mainly propose a kind of low temperature curing type non-chromium passivation agent for galvanizing plate.
Background technology
Zinc coating to galvanized sheet carries out Passivation Treatment, to improve its solidity to corrosion in transportation and short term stored.Traditional Passivation Treatment is used chromate passivator, can improve the solidity to corrosion of galvanized sheet, but because of wherein containing HUMAN HEALTH and environmental protection are had the sexavalent chrome that has a strong impact on, the domestic relevant laws and regulations of all having formulated limit its application in automobile, electronics, household electric appliances.
Patent publication No. is CN1556246, and denomination of invention discloses a kind of chrome-free tanning agent for " chromium-free passivation liquid chromium-free passivation liquid ".Disclosed chrome-free tanning agent be complex compound with titanium ion, mn ion, molybdenum ion and citric acid, tartrate etc. as main anti-corrosion material, the passive film that obtains is the chromatic passivation film, and what generally need is water white passive film.
Patent publication No. is CN159447, and denomination of invention discloses a kind of chrome-free tanning agent for " chromium-free metal surface treatment agent ".Disclosed chrome-free tanning agent contains type siloxane material, nano titanium oxide and pure dissolubility polyvinyl butyral resin etc.But passivator need solidify down at 180 ℃, and the production line ability to cure is had relatively high expectations.
Patent publication No. is CN 101111629A, and denomination of invention discloses a kind of chrome-free tanning agent for " chrome free composition and the surface-treated metal sheet that are used for metal finishing ".Disclosed chrome-free tanning agent contains vinyl-based binder resin, acryloyl base class adhesive resin and corrosion resistant inorganic salt.But passivator need solidify down at 150 ℃, and the production line ability to cure is had relatively high expectations.
Summary of the invention
The objective of the invention is to propose a kind of low temperature curing type non-chromium passivation agent for galvanizing plate, make passivator of the present invention have solidification value low, required set time of short characteristics, thereby satisfy domestic existing most zinc-plated board production lines because of the not enough demand of roller coat section ability to cure to low temperature curing type passivator.
The composition of low temperature curing type non-chromium passivation agent for galvanizing plate proposed by the invention and content are:
Water 100ml
Metal phosphate 5～10g
Water-based organic resin emulsion 12～20ml
Water-miscible organic solvent 3～5ml
Phosphoric acid 2～5ml
Described metal phosphate is zinc phosphate, aluminum phosphate, calcium phosphate and combination thereof.
Described water-based organic resin emulsion is 2 kinds or 3 kinds combination in ACRYLIC EMULSION, styrene emulsion, epoxy emulsion, the fluorine-containing latex.
Described water-miscible organic solvent is ethylene glycol, ethylene glycol and combination thereof.
Among the present invention, metal phosphate is main anti-corrosion material, comprises zinc phosphate, aluminum phosphate, calcium phosphate and combination thereof; The water-based organic emulsion is a main film forming substance, comprises the combination of two or three in ACRYLIC EMULSION, styrene emulsion, epoxy emulsion, the fluorine-containing latex; Water-miscible organic solvent is the solubility promoter of metal phosphate, and is present in the performance that improves passive film in the film after the curing; Phosphoric acid also is the solubility promoter of metal phosphate.
Compare with prior art, the invention provides a kind of chrome-free tanning agent that can substitute chromium hydrochlorate passivator, described passivator solidifies 3s under the temperature more than PMT60 ℃ can obtain the water white transparency passivation layer, satisfies domestic existing most zinc-plated board production lines because of the not enough demand to low temperature curing type passivator of roller coat section ability to cure.In sum, the present invention has high economic benefit and social benefit.
Embodiment
Embodiment 1:
5ml ethylene glycol, 2ml phosphoric acid and 50ml water is miscible, add the 2g zinc phosphate, treat that its dissolving back adds the 8g aluminum phosphate, obtains solution A after the dissolving.Under stirring condition, 7ml ACRYLIC EMULSION, 5ml fluorine-containing latex are joined in the 50ml water one by one, obtain emulsion B after mixing.Under stirring condition, A is added drop-wise among the B gradually, can obtain low temperature curing type non-chromium passivation agent.The coating of employing roller coating technology is solidified 3s and can be obtained the water white transparency passivation layer under the temperature more than PMT60 ℃.
Embodiment 2:
2ml ethylene glycol, 1ml ethylene glycol, 5ml phosphoric acid and 50ml water is miscible, add the 3g zinc phosphate, treat that its dissolving back adds the 7g aluminum phosphate, obtains solution A after the dissolving.Under stirring condition, 4ml water-based styrene emulsion, 7ml ACRYLIC EMULSION, 3ml fluorine-containing latex are joined in the 50ml water one by one, obtain emulsion B after mixing.Under stirring condition, A is added drop-wise among the B gradually, can obtain low temperature curing type non-chromium passivation agent.The coating of employing roller coating technology is solidified 3s and can be obtained the water white transparency passivation layer under the temperature more than PMT60 ℃.
Embodiment 3:
4ml ethylene glycol, 3ml phosphoric acid and 50ml water is miscible, add 3g calcium phosphate, treat that its dissolving back adds the 2g aluminum phosphate, obtains solution A after the dissolving.Under stirring condition, 4ml aqueous epoxy emulsion, 10ml ACRYLIC EMULSION, 6ml fluorine-containing latex are joined in the 50ml water one by one, obtain emulsion B after mixing.Under stirring condition, A is added drop-wise among the B gradually, can obtain low temperature curing type non-chromium passivation agent.The coating of employing roller coating technology is solidified 3s and can be obtained the water white transparency passivation layer under the temperature more than PMT60 ℃.
Embodiment 4:
4ml ethylene glycol, 3ml phosphoric acid and 50ml water is miscible, add 8g calcium phosphate, obtain solution A after the dissolving.Under stirring condition, 4ml aqueous epoxy emulsion, 10ml ACRYLIC EMULSION, 6ml water-based styrene emulsion are joined in the 50ml water one by one, obtain emulsion B after mixing.Under stirring condition, A is added drop-wise among the B gradually, can obtain low temperature curing type non-chromium passivation agent.The coating of employing roller coating technology is solidified 3s and can be obtained the water white transparency passivation layer under the temperature more than PMT60 ℃.
Embodiment 5:
2ml ethylene glycol, 1ml ethylene glycol, 5ml phosphoric acid and 50ml water is miscible, add the 10g aluminum phosphate, obtain solution A after the dissolving.Under stirring condition, 4ml water-based styrene emulsion, 7ml ACRYLIC EMULSION, 3ml fluorine-containing latex are joined in the 50ml water one by one, obtain emulsion B after mixing.Under stirring condition, A is added drop-wise among the B gradually, can obtain low temperature curing type non-chromium passivation agent.The coating of employing roller coating technology is solidified 3s and can be obtained the water white transparency passivation layer under the temperature more than PMT60 ℃.
Embodiment 6:
2ml ethylene glycol, 1ml ethylene glycol, 5ml phosphoric acid and 50ml water is miscible, add the 7g zinc phosphate, obtain solution A after the dissolving.Under stirring condition, 4ml water-based styrene emulsion, 7ml ACRYLIC EMULSION, 3ml fluorine-containing latex are joined in the 50ml water one by one, obtain emulsion B after mixing.Under stirring condition, A is added drop-wise among the B gradually, can obtain low temperature curing type non-chromium passivation agent.The coating of employing roller coating technology is solidified 3s and can be obtained the water white transparency passivation layer under the temperature more than PMT60 ℃.
Claims (2)
1. low temperature curing type non-chromium passivation agent for galvanizing plate, it is characterized in that: the composition of passivator and content are:
Water 100ml
Metal phosphate 5～10g
Water-based organic resin emulsion 12～20ml
Water-miscible organic solvent 3～8ml
Phosphoric acid 2～5ml
Described water-based organic resin emulsion is 2 kinds or 3 kinds combination in ACRYLIC EMULSION, styrene emulsion, epoxy emulsion, the fluorine-containing latex; Described water-miscible organic solvent is ethylene glycol, ethylene glycol and combination thereof.
2. a kind of low temperature curing type non-chromium passivation agent for galvanizing plate according to claim 1 is characterized in that: described metal phosphate is zinc phosphate, aluminum phosphate, calcium phosphate and combination thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101405122A CN101323948B (en) | 2008-07-08 | 2008-07-08 | Low temperature curing type non-chromium passivation agent for galvanizing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101405122A CN101323948B (en) | 2008-07-08 | 2008-07-08 | Low temperature curing type non-chromium passivation agent for galvanizing plate |
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| Publication Number | Publication Date |
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| CN101323948A CN101323948A (en) | 2008-12-17 |
| CN101323948B true CN101323948B (en) | 2010-06-16 |
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| CN2008101405122A Expired - Fee Related CN101323948B (en) | 2008-07-08 | 2008-07-08 | Low temperature curing type non-chromium passivation agent for galvanizing plate |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477551B (en) * | 2010-11-29 | 2013-10-23 | 攀钢集团钢铁钒钛股份有限公司 | Surface treatment agent and zinc-plating material |
| CN103074622B (en) * | 2013-02-05 | 2015-08-12 | 重庆泰莹科技有限公司 | Environmental-protecdual-functional dual-functional chemical conversion liquid |
| CN105937033B (en) * | 2016-05-31 | 2018-12-18 | 河北晨阳工贸集团有限公司 | A kind of environment protection multifunctional priming paint and preparation method thereof |
| CN106756924A (en) * | 2016-12-29 | 2017-05-31 | 天津市必拓制钢有限公司 | A kind of passivating solution of coating steel pipe zinc coat and preparation method thereof |
| CN112899669A (en) * | 2021-01-20 | 2021-06-04 | 昆山富维金属制品有限公司 | Nano passivation coating galvanized sheet and production process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003251743A (en) * | 2002-03-05 | 2003-09-09 | Sumitomo Metal Ind Ltd | Resin coated surface treated steel sheet |
| CN1260392C (en) * | 2001-06-26 | 2006-06-21 | 日本帕卡濑精株式会社 | Surface treatment agent for metal, process for surface treatment of metallic substances and surface-treated metallic substances |
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2008
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260392C (en) * | 2001-06-26 | 2006-06-21 | 日本帕卡濑精株式会社 | Surface treatment agent for metal, process for surface treatment of metallic substances and surface-treated metallic substances |
| JP2003251743A (en) * | 2002-03-05 | 2003-09-09 | Sumitomo Metal Ind Ltd | Resin coated surface treated steel sheet |
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| CN101323948A (en) | 2008-12-17 |
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