CN105001688A - Water-borne inorganic anti-corrosive paint added with lithium stearate - Google Patents
Water-borne inorganic anti-corrosive paint added with lithium stearate Download PDFInfo
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- CN105001688A CN105001688A CN201510463706.6A CN201510463706A CN105001688A CN 105001688 A CN105001688 A CN 105001688A CN 201510463706 A CN201510463706 A CN 201510463706A CN 105001688 A CN105001688 A CN 105001688A
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Abstract
The invention relates to water-borne inorganic anti-corrosive paint added with lithium stearate serving as a stabilizer. A preparation method of the paint comprises the steps that an appropriate amount of sodium silicate solution is taken and poured into a vessel which can be heated, slow heating is conducted through a heat source, when the temperature rises to about 70 DEG C, silicone acrylic emulsion is added into the vessel, heating is stopped after the mixture is thoroughly mixed, a titanate coupling agent and zinc powder are sequentially added, stirring is accelerated for mixing, a MgC12 aqueous solution and the lithium stearate serving as a stabilizer are added at last, and the water-borne inorganic anti-corrosive paint added with the lithium stearate is obtained after the mixture is evenly mixed. The prepared paint is good in stability performance, the preparation technology is simple, and the water-borne inorganic anti-corrosive paint added with the lithium stearate has better application prospect.
Description
Technical field
The present invention relates to a kind of antifouling paint and preparation method thereof, particularly a kind of rich zinc antifouling paint of aqueous inorganic adding stearate and preparation method thereof, belongs to paint chemical field.
Background technology
Iron and steel we life in purposes widely, as automotive industry, production, construction industry, the industries such as transportation, but iron and steel rotproofness is poor, anticorrosion concerning extremely important iron and steel, according to statistics, the 10%-20% of annual production is accounted for every year owing to corroding the iron and steel loss caused, corrosion is generally that between metallic surface and medium, generation chemistry or electrochemistry heterogeneous reaction cause, the intensity of ferrous materials significantly can be reduced after corroding, the mechanical properties such as toughness, destroy the geometrical shape of hardware, the work-ing life of shortening equipment, people are prevented by antifouling paint or delay corrosion for this reason.
Common antifouling paint mainly reaches rot-resistant object from two aspects: one is with shielding effect, and antifouling paint paint film stops corrosive medium and material surface contact, cuts off the path of corrosion cell, increases resistance.As epoxy coal asphalt paint, epoxy glass squama antiseptic paint, chlorosulfonated polyethylene paint, polyureas, acrylic polyurethane coating etc.; Another is corrosion inhibition, some pigment of antifouling paint, or the reaction product of itself and film forming matter or moisture, can play corrosion inhibition (comprising passivation), as wash primer, phosphatization, zinc-plated chromium plating, epoxy phosphate yellow zinc chromate primer paint etc. to ground metal.But these two kinds of antifouling paint preservative effects are limited; and be used for anticorrosion with galvanic protection; preservative effect is better; as zinc rich paint; containing a large amount of zinc powder in zinc rich paint, close contact between zinc particles, between zinc particles and steel surface, the current potential of zinc is more negative than iron; so zinc atom easily loses electronics and becomes anode in electrolyte solution, iron rule is negative electrode.In positive column, zinc is corroded owing to losing electronics, and in cathodic area, steel surface constantly obtains electronics, thus is protected.After film has site tissue damage, expose matrix metal, can flow to iron and steel exposed portion at less area internal corrosion electric current, then the product of zinc is just deposited on and forms layer protecting film herein, delays corrosion and continues to occur.
Zinc rich paint is divided into organic zinc rich paint and inorganic zinc-rich paint, and it is film forming binder that organic zinc rich paint commonly uses epoxy resin, chlorinated rubber, Vinylite and urethane resin.But the poor electric conductivity of the organic binder of organic zinc rich paint.Inorganic zinc-rich paint is divided into again solvent-borne type and water-based two class.Wherein aqueous inorganic zinc rich paint is made up of aqueous inorganic silicate (receive, potassium, lithium) resin, zinc powder, auxiliary agent etc.Aqueous inorganic zinc rich paint is due to its organic solvent-free, there is free from extraneous odour, do not fire not quick-fried, the advantage such as free from environmental pollution, but in waterborne zinc-rich paint preparation process, there will be the wild effects such as sedimentation, in order to overcome above shortcoming, in paint preparation process, adding people's lithium stearate salt stabilizing agent, in the rich zinc antifouling paint of aqueous inorganic, introducing loose webs thixotropy structure, prevent from expecting particles settling, improve the stability of paint.
Summary of the invention
Add an aqueous inorganic antifouling paint for stearic acid lithium salts, its preparation method comprises the steps:
(1) a certain amount of sodium silicate solution is poured in container, slowly heat;
(2) when being heated to 60-75 DEG C, organosilicon crylic acid latex is slowly added in container, and ceaselessly stir, after interpolation, stop heating;
(3) in container, add appropriate titanate coupling agent again, high-speed stirring;
(4) add zinc powder, ceaselessly stir;
(5) finally add appropriate MgCl successively
2the aqueous solution and stearic acid lithium salts, obtain a kind of aqueous inorganic antifouling paint adding stearic acid lithium salts.
Preferential, step (4) in, added zinc powder is 500-600 order, and interpolation mass percent is 45%-60%.
Preferential, step (5) in, the interpolation mass percent of stearic acid lithium salts is 4%-6%.
The present invention has following advantages and characteristic:
(1) preparation technology is simple;
(2) paint stabilization is good.
Embodiment
Embodiment one:
200g sodium silicate solution is poured in a heatable container, slow heating, after solution temperature reaches 60 DEG C, then drips 100g organosilicon crylic acid latex in container, and ceaselessly stir, after dropwising, stop heating, after system temperature is down to room temperature, 30g titanate coupling agent is added again in container, and improve stirring velocity, then add the 500 order super-fine zinc dusts of 600g, finally add 30gMgCl successively
2the aqueous solution and 40g stearic acid lithium salts, obtain a kind of aqueous inorganic antifouling paint adding stearic acid lithium salts.
Embodiment two:
500g sodium silicate solution is poured in a heatable container, slow heating, after solution temperature reaches 65 DEG C, then drips 200g organosilicon crylic acid latex in container, and ceaselessly stir, after dropwising, stop heating, after system temperature is down to room temperature, 100g titanate coupling agent is added again in container, and improve stirring velocity, then add the 550 order super-fine zinc dusts of 1000g, finally add 80gMgCl successively
2the aqueous solution and 120g stearic acid lithium salts, obtain a kind of aqueous inorganic antifouling paint adding stearic acid lithium salts.
Embodiment three:
1500g sodium silicate solution is poured in a heatable container, slow heating, after solution temperature reaches 75 DEG C, then drips 750g organosilicon crylic acid latex in container, and ceaselessly stir, after dropwising, stop heating, after system temperature is down to room temperature, 150g titanate coupling agent is added again in container, and improve stirring velocity, then add the 600 order super-fine zinc dusts of 2550g, finally add 150gMgCl successively
2the aqueous solution and 200g stearic acid lithium salts, obtain a kind of aqueous inorganic antifouling paint adding stearic acid lithium salts.
Claims (3)
1. add an aqueous inorganic antifouling paint for stearic acid lithium salts, it is characterized in that, the preparation method of this paint carries out as follows:
(1) a certain amount of sodium silicate solution is poured in container, slowly heat;
(2) when being heated to 60-75 DEG C, organosilicon crylic acid latex is slowly added in container, and ceaselessly stir, after interpolation, stop heating;
(3) in container, add appropriate titanate coupling agent again, high-speed stirring;
(4) add zinc powder, ceaselessly stir;
(5) finally add appropriate MgCl successively
2the aqueous solution and stearic acid lithium salts, obtain a kind of aqueous inorganic antifouling paint adding stearic acid lithium salts.
2. a kind of aqueous inorganic antifouling paint adding stearic acid lithium salts according to claim 1, is characterized in that, step (4) in, added zinc powder is 500-600 order, and interpolation mass percent is 45%-60%.
3. a kind of aqueous inorganic antifouling paint adding stearic acid lithium salts according to claim 1, is characterized in that, step (5) in, the interpolation mass percent of stearic acid lithium salts is 4%-6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463706.6A CN105001688A (en) | 2015-08-02 | 2015-08-02 | Water-borne inorganic anti-corrosive paint added with lithium stearate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510463706.6A CN105001688A (en) | 2015-08-02 | 2015-08-02 | Water-borne inorganic anti-corrosive paint added with lithium stearate |
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| CN105001688A true CN105001688A (en) | 2015-10-28 |
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| CN201510463706.6A Pending CN105001688A (en) | 2015-08-02 | 2015-08-02 | Water-borne inorganic anti-corrosive paint added with lithium stearate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221322A (en) * | 2016-08-26 | 2016-12-14 | 叶佐焕 | A kind of technique improving antifouling paint stability |
| CN106243793A (en) * | 2016-08-26 | 2016-12-21 | 叶佐焕 | A kind of antifouling paint adding lithium stearate/methoxyl group fatty acid amide base class modifying agent |
| CN106243882A (en) * | 2016-08-26 | 2016-12-21 | 叶佐焕 | A kind of antifouling paint adding stearic acid calcium salt composite modifier and technique thereof |
| CN106349852A (en) * | 2016-08-26 | 2017-01-25 | 叶佐焕 | Anticorrosive paint with stearate composite modifier |
| CN106349773A (en) * | 2016-08-26 | 2017-01-25 | 叶佐焕 | Anticorrosive paint with sodium stearate/methoxyl fatty amides modifier |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106271A (en) * | 1979-02-09 | 1980-08-14 | Nippon Oil & Fats Co Ltd | Aqueous inorganic zinc-rich primer |
| CN103173045A (en) * | 2013-03-07 | 2013-06-26 | 中国科学院宁波材料技术与工程研究所 | Inorganic zinc-rich anticorrosive nano-attapulgite coating and its preparation method |
| CN103450719A (en) * | 2013-09-09 | 2013-12-18 | 武汉武大巨成加固实业有限公司 | Long-acting water-soluble and environmentally-friendly steel structural protective coating |
| CN103756377A (en) * | 2014-01-22 | 2014-04-30 | 沈阳工业大学 | Modified silicate waterborne zinc-rich anticorrosive coating employing organic montmorillonite as anti-settling dispersant |
| CN104356727A (en) * | 2014-11-14 | 2015-02-18 | 无锡伊佩克科技有限公司 | Water-based inorganic zinc-rich paint and preparation method thereof |
-
2015
- 2015-08-02 CN CN201510463706.6A patent/CN105001688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106271A (en) * | 1979-02-09 | 1980-08-14 | Nippon Oil & Fats Co Ltd | Aqueous inorganic zinc-rich primer |
| CN103173045A (en) * | 2013-03-07 | 2013-06-26 | 中国科学院宁波材料技术与工程研究所 | Inorganic zinc-rich anticorrosive nano-attapulgite coating and its preparation method |
| CN103450719A (en) * | 2013-09-09 | 2013-12-18 | 武汉武大巨成加固实业有限公司 | Long-acting water-soluble and environmentally-friendly steel structural protective coating |
| CN103756377A (en) * | 2014-01-22 | 2014-04-30 | 沈阳工业大学 | Modified silicate waterborne zinc-rich anticorrosive coating employing organic montmorillonite as anti-settling dispersant |
| CN104356727A (en) * | 2014-11-14 | 2015-02-18 | 无锡伊佩克科技有限公司 | Water-based inorganic zinc-rich paint and preparation method thereof |
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| 张鹏飞等: "水性无机富锌涂料及其改性", 《上海涂料》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221322A (en) * | 2016-08-26 | 2016-12-14 | 叶佐焕 | A kind of technique improving antifouling paint stability |
| CN106243793A (en) * | 2016-08-26 | 2016-12-21 | 叶佐焕 | A kind of antifouling paint adding lithium stearate/methoxyl group fatty acid amide base class modifying agent |
| CN106243882A (en) * | 2016-08-26 | 2016-12-21 | 叶佐焕 | A kind of antifouling paint adding stearic acid calcium salt composite modifier and technique thereof |
| CN106349852A (en) * | 2016-08-26 | 2017-01-25 | 叶佐焕 | Anticorrosive paint with stearate composite modifier |
| CN106349773A (en) * | 2016-08-26 | 2017-01-25 | 叶佐焕 | Anticorrosive paint with sodium stearate/methoxyl fatty amides modifier |
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Application publication date: 20151028 |
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