CN104927531A - Zinc-rich paint employing lithium silicate and potassium silicate as base materials - Google Patents
Zinc-rich paint employing lithium silicate and potassium silicate as base materials Download PDFInfo
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- CN104927531A CN104927531A CN201510265755.9A CN201510265755A CN104927531A CN 104927531 A CN104927531 A CN 104927531A CN 201510265755 A CN201510265755 A CN 201510265755A CN 104927531 A CN104927531 A CN 104927531A
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Abstract
The invention relates to a preparation method for zinc-rich paint employing lithium silicate and potassium silicate as base materials. The method comprises the following steps: firstly, mixing and heating a lithium silicate solution and a potassium silicate solution; secondly, dropwise adding silica sol and a silane coupling agent under the condition of stirring, uniformly mixing the silica sol and the silane coupling agent, cooling to room temperature, and adding a silicone acrylic emulsion; finally, adding superfine zinc powder, and continuously stirring to obtain the zinc-rich paint.
Description
Technical field
The present invention relates to a kind of anti-corrosion of metal paint, particularly a kind of take silicate as the zinc rich paint of base-material, belongs to paint chemical field.
Background technology
Metallic substance damages by the effect of surrounding medium, is called metallic corrosion.Metallic corrosion is an important factor in order of the metal lost of life, according to statistics, the metal that the whole world is scrapped because of corrosion every year reaches more than hundred million tons, the iron and steel loss caused due to metallic corrosion every year accounts for 10 ~ 20% of output of steel then, and the indirect losses such as the stopping production that metallic corrosion accident causes, power failure just more cannot calculate.The corrosion of metal is modal etch state.During corrosion, the interface of metal there occurs chemistry or electrochemistry heterogeneous reaction, make metal proceed to oxidation (ion) state.This significantly can reduce the mechanical property such as intensity, plasticity, toughness of metallic substance, destroy the geometrical shape of hardware, increase the wearing and tearing between part, worsen the physicals such as electricity and optics, in the work-ing life of shortening equipment, even cause the catastrophic failure such as fire, blast.
People delay corrosion of metal speed by various mode, as improved base material, selecting anticorrosive, increase metal plating, add inhibiter, adopting electro-chemical protection.People, by adding other materials to suppress in pure metal or stoping corrosion of metal, achieve success in various degree.But the shortcoming adopting the material being less likely to occur to corrode to solve etching problem is and original metallographic phase ratio, and its physicals often lacks to some extent, or causes cost to increase due to the cost of alloy.Therefore the most frequently used anti-corrosion mode is exactly to needing the additional top coat (or coating) having a tolerance of the metal of protection.The material that this type coating uses is different, but conventional be antifouling paint, comparatively ground metal is low for the electropotential of antifouling paint paint film, and in corrosion cell, it is as anode " sacrifice ", thus ground metal (negative electrode) is protected.
Zinc rich paint is coated in steel surface, greatly can extend the work-ing life of steel construction.Due to the standard potential of zinc, comparatively iron and steel is low, and when corrosive medium infiltrates, iron and steel and zinc powder form galvanic cell, and zinc powder loses electronics as the negative pole of galvanic cell, and iron and steel obtains electronics as positive pole and obtains protection.The position had on the film of zinc-rich paint by physical abuse after, in the area of certain limit, anticorrosive current also can flow to iron and steel exposed portion, then the corrosion product of zinc be just deposited on there form layer protecting film.Along with the continuous exposure of steel surface, rich zinc film constantly protected film hidden, and galvanic protection effect just presents inertia again, but then starts when film is subject to physical abuse and exposes new zinc surface to bring back to life.If use sand papering film coated surface, or new zinc face is exposed in film scratch, then potential difference just restores to the original state.In addition, the anion binding in the zine ion be dissolved out and corrosive medium and form basic zinc salt and zinc-iron double salt, fills up the crack of film, and reaches the etch-proof object of isolation.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.Be used alone a kind of silicate as base-material, its Performance comparision is single, and the present invention prepares mixed silicate base-material by mixing lithium silicate and potassium silicate, thus prepares a kind of zinc rich paint of excellent properties.
Summary of the invention
The object of this invention is to provide a kind of with lithium silicate, potassium silicate be base-material zinc rich paint and technique thereof, contained by this paint, the mass percent of component is:
Lithium silicate 5%-10%;
Potassium silicate 5%-10%;
Silicon sol 20%-40%;
Silane coupling agent 5%-10%;
Organosilicon crylic acid latex 20%-30%;
Super-fine zinc dust 20%-30%.
A kind of preparation method with lithium silicate, the potassium silicate zinc rich paint that is base-material comprises the steps:
(1) pour a certain amount of lithium silicate solution and potassium silicate solution in container Hybrid Heating;
(2) under the condition stirred, by a certain amount of silicon sol slowly in container;
(3) in container, add the silane coupling agent of certain metering again, high-speed stirring;
(4) stop heating, when temperature is down to room temperature, add organosilicon crylic acid latex;
(5) finally add appropriate super-fine zinc dust, Keep agitation for some time a kind of zinc rich paint that is base-material with lithium silicate, potassium silicate.
Preferentially, step (1) in, Heating temperature is 60-80 DEG C.
Preferentially, step (5) in, churning time is 20-30 minute.
The present invention has following advantages and characteristic:
(1) this paint preparation technology is simple, good operability;
(2) the paint good combination property prepared.
Embodiment
Embodiment one:
50g lithium silicate solution and 50g potassium silicate solution are poured into respectively in a container, mixed and heat, heating and temperature control, at about 60 DEG C, ceaselessly stirs with stirrer.In whipping process, slowly drip 300g silicon sol again, after dropwising, in container, add 50g silane coupling agent again, and improve stirring velocity, after mixing, system temperature is down to room temperature, then add 250g organosilicon crylic acid latex, finally add 300g super-fine zinc dust, Keep agitation 20 minutes a kind of zinc rich paint.
Embodiment two:
100g lithium silicate solution and 100g potassium silicate solution are poured into respectively in a container, mixed and heat, heating and temperature control, at about 70 DEG C, ceaselessly stirs with stirrer.In whipping process, slowly drip 200g silicon sol again, after dropwising, in container, add 100g silane coupling agent again, and improve stirring velocity, after mixing, system temperature is down to room temperature, then add 200g organosilicon crylic acid latex, finally add 300g super-fine zinc dust, Keep agitation 25 minutes a kind of zinc rich paint.
Embodiment three:
200g lithium silicate solution and 200g potassium silicate solution are poured into respectively in a container, mixed and heat, heating and temperature control, at about 80 DEG C, ceaselessly stirs with stirrer.In whipping process, slowly drip 400g silicon sol again, after dropwising, in container, add 200g silane coupling agent again, and improve stirring velocity, after mixing, system temperature is down to room temperature, then add 400g organosilicon crylic acid latex, finally add 600g super-fine zinc dust, Keep agitation 30 minutes a kind of zinc rich paint.
Claims (4)
1. a zinc rich paint, is characterized in that the preparation method of this paint comprises the following steps:
(1) pour a certain amount of lithium silicate solution and potassium silicate solution in container Hybrid Heating;
(2) under the condition stirred, by a certain amount of silicon sol slowly in container;
(3) in container, add the silane coupling agent of certain metering again, high-speed stirring;
(4) stop heating, when temperature is down to room temperature, add organosilicon crylic acid latex;
(5) finally add appropriate super-fine zinc dust, Keep agitation for some time a kind of zinc rich paint that is base-material with lithium silicate, potassium silicate.
2. a kind of zinc rich paint according to claim 1, is characterized in that, the mass percent of this zinc rich paint component concentration is: lithium silicate 5%-10%, potassium silicate 5%-10%, silicon sol 20%-40%, silane coupling agent 5%-10%, organosilicon crylic acid latex 20%-30%, super-fine zinc dust 20%-30%.
3. a kind of zinc rich paint according to claim 1, is characterised in that, step (1) in, Heating temperature is 60-80 DEG C.
4. a kind of zinc rich paint according to claim 1, is characterised in that, step (5) in, churning time is 20-30 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510265755.9A CN104927531A (en) | 2015-05-24 | 2015-05-24 | Zinc-rich paint employing lithium silicate and potassium silicate as base materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510265755.9A CN104927531A (en) | 2015-05-24 | 2015-05-24 | Zinc-rich paint employing lithium silicate and potassium silicate as base materials |
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| CN104927531A true CN104927531A (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510265755.9A Pending CN104927531A (en) | 2015-05-24 | 2015-05-24 | Zinc-rich paint employing lithium silicate and potassium silicate as base materials |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419537A (en) * | 2015-12-27 | 2016-03-23 | 黄子芳 | Functional coating with addition of water-soluble potassium carbonate thickening agent |
| CN105419539A (en) * | 2015-12-27 | 2016-03-23 | 黄子芳 | Functional coating with addition of carboxymethylcellulose thickening agent and process |
| CN105419538A (en) * | 2015-12-27 | 2016-03-23 | 黄子芳 | Functional coating with addition of colloid aluminum oxide thickening agent and process |
| CN105542598A (en) * | 2015-12-27 | 2016-05-04 | 黄子芳 | Montmorillonite thickener added functional coating material |
| CN106047005A (en) * | 2016-07-24 | 2016-10-26 | 黄子芳 | Functional coating added with alkyl modifier |
| CN106118310A (en) * | 2016-07-24 | 2016-11-16 | 黄子芳 | A kind of dual modified functional paint |
| CN106147481A (en) * | 2016-07-24 | 2016-11-23 | 黄子芳 | A kind of preparation method of functional paint |
| CN110467832A (en) * | 2018-05-10 | 2019-11-19 | 中环海化(厦门)船舶智能涂料有限公司 | A kind of single-component water-based lithium base zinc-rich coating of environment-friendly type and preparation method thereof |
| CN113444383A (en) * | 2021-07-01 | 2021-09-28 | 安徽陶博士环保科技有限公司 | Emulsion modified inorganic zinc-rich silicate anticorrosive paint and preparation method thereof |
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| CN1552771A (en) * | 2003-06-06 | 2004-12-08 | 上海门普来新材料实业有限公司 | Mixed silicon sol water inorganic zinc enriching paint |
| CN102127328A (en) * | 2011-01-31 | 2011-07-20 | 天津市富特斯科技发展有限公司 | Aqueous on-rust inorganic zinc-enriched coating and preparation method thereof |
| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
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2015
- 2015-05-24 CN CN201510265755.9A patent/CN104927531A/en active Pending
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| CN1552771A (en) * | 2003-06-06 | 2004-12-08 | 上海门普来新材料实业有限公司 | Mixed silicon sol water inorganic zinc enriching paint |
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| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419537A (en) * | 2015-12-27 | 2016-03-23 | 黄子芳 | Functional coating with addition of water-soluble potassium carbonate thickening agent |
| CN105419539A (en) * | 2015-12-27 | 2016-03-23 | 黄子芳 | Functional coating with addition of carboxymethylcellulose thickening agent and process |
| CN105419538A (en) * | 2015-12-27 | 2016-03-23 | 黄子芳 | Functional coating with addition of colloid aluminum oxide thickening agent and process |
| CN105542598A (en) * | 2015-12-27 | 2016-05-04 | 黄子芳 | Montmorillonite thickener added functional coating material |
| CN106047005A (en) * | 2016-07-24 | 2016-10-26 | 黄子芳 | Functional coating added with alkyl modifier |
| CN106118310A (en) * | 2016-07-24 | 2016-11-16 | 黄子芳 | A kind of dual modified functional paint |
| CN106147481A (en) * | 2016-07-24 | 2016-11-23 | 黄子芳 | A kind of preparation method of functional paint |
| CN110467832A (en) * | 2018-05-10 | 2019-11-19 | 中环海化(厦门)船舶智能涂料有限公司 | A kind of single-component water-based lithium base zinc-rich coating of environment-friendly type and preparation method thereof |
| CN113444383A (en) * | 2021-07-01 | 2021-09-28 | 安徽陶博士环保科技有限公司 | Emulsion modified inorganic zinc-rich silicate anticorrosive paint and preparation method thereof |
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Application publication date: 20150923 |