CN102491668B - Environment-friendly high temperature activated water-based rebar rust inhibitor - Google Patents
Environment-friendly high temperature activated water-based rebar rust inhibitor Download PDFInfo
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- CN102491668B CN102491668B CN201110366575.1A CN201110366575A CN102491668B CN 102491668 B CN102491668 B CN 102491668B CN 201110366575 A CN201110366575 A CN 201110366575A CN 102491668 B CN102491668 B CN 102491668B
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Abstract
The invention relates to an environment-friendly high temperature activated water-based rebar rust inhibitor, which comprises the following components: 0.1%-0.5% of a silicate, 0.1%-0.6% of a meta-aluminate, 0.1%-0.6% of organic amine, 0.1%-0.6% of gluconic acid, and 98% of water, and the sum of the above components is 100%. By adopting a silicate and a meta-aluminate as main components and cooperating with other components, the rust inhibitor of the invention has the advantages of no toxicity, no pollution, low cost, environmental friendliness, and good rust inhibiting effect, etc.
Description
Technical field
The present invention relates to metal corrosion and protection technical field, specifically a kind of anti-corrosion of metal high temperature rust inhibitor.
Background technology
Veryer long process has been experienced in the research of steel resistance rust technology.In the world metallic corrosion as one independently subject be to form 20 beginnings of the century, under numerous electrochemical scholars and metal scholar's systematic study, progressively determined the basic law of corrosion of metal and oxidation, for the research of metal resistance rust technology, establish theoretical basis, then produced the resistance rust technology of multiple different metallic substance.At present, relatively the ferrous materials of moulding resistance rust technology comprises: coating resistance rust technology, inhibiter technology, reinforcing steel bar corrosion inhibitor and weathering steel technology etc.Not only theoretical basis is clear and definite for these several technology, and has obtained application in some field, and the ultimate principle that realizes the processing of rapidly and efficiently metallic surface resistance rust is exactly in metallic surface, to form layer protecting film, thereby blocking oxygen reaches with contacting of Fe the effect that hinders rust.The method of realizing this goal mainly contains two kinds of methods: top coat and surface chemistry oxidation style.
Thereby top coat method is exactly to completely cut off air, to reach the object of resistance rust at metallic surface coating one deck oxidation-resistant film.Because we hinder rust to process in reinforcing bar production process, top coat method is difficult to effectively carry out fast, and cost is too high.Tradition organic film plating is unstable under hot conditions, is difficult to realize evenly apply at rebar surface, and the practical application of reinforcing bar after being simultaneously not easy to, as carry out soldering etc.; Chemical oxidization method is the method for utilizing chemical oxidation, finally in metallic surface, forms the compound of fine and close high price Fe, is difficult for losing electronics, is therefore difficult for by extraneous oxygen, salt and electrolyte corrosion.Surface chemistry oxidation style is convenient under hot conditions quick, carries out efficiently.If reinforcing bar, under the condition of high temperature polyoxy, easily generates fine and close Fe2O3 and Fe3O4 film conventionally, can naturally play the effect of isolated air.But reinforcing bar is in wearing water process, is a cooling, oxygen barrier process, is difficult to form fine and close protective membrane.Traditional method is to utilize nitrite and heavy metal phosphoric acid salt to carry out surface oxidation treatment.Nitrite is too large in actual production process toxic, large to field worker injury, and phosphating process precipitation is many, and operating environment is poor, and cost is high, and final cooling water pollution is serious.These two kinds of methods all do not obtain large-scale application at present.
Summary of the invention
In order to overcome above defect, the object of this invention is to provide a kind of nontoxic, pollution-free, environment-friendly high-temperature activated water-based reinforcing steel bar corrosion inhibitor that resistance rust is effective.
Technical scheme of the present invention is: environment-friendly high-temperature activated water-based reinforcing steel bar corrosion inhibitor, this rust inhibitor component and each component concentration per-cent are: silicate 0.1%-0.5%, meta-aluminate 0.1%-0.6%, organic amine 0.1%-0.6%, gluconic acid 0.1%-0.6%, water 98%, above each component percentage ratio sum is 100%.
Organic amine of the present invention be cetylamine, triethylene diamine, trolamine and urotropine any one or multiple.
Organic amine of the present invention is trolamine.
Organic amine of the present invention is urotropine.
Silicate of the present invention and meta-aluminate are sodium salt or sylvite.
Preparation method of the present invention is for accurately taking in proportion a component mixing, heating, stirring, finished product packing.
The invention has the beneficial effects as follows: 1, to adopt silicate and meta-aluminate be main ingredient in the present invention, coordinates other components, have nontoxic, pollution-free, cost is low, the features such as environmental friendliness.
2, the present invention compared with prior art has advantages of that resistance rust is effective.
Embodiment
Technical scheme of the present invention is: environment-friendly high-temperature activated water-based reinforcing steel bar corrosion inhibitor, this rust inhibitor component and each component concentration per-cent are: silicate 0.1%-0.5%, meta-aluminate 0.1%-0.6%, organic amine 0.1%-0.6%, gluconic acid 0.1%-0.6%, water 98%, above each component percentage ratio sum is 100%.
Organic amine of the present invention be cetylamine, triethylene diamine, trolamine and urotropine any one or multiple.
Organic amine of the present invention is trolamine.
Organic amine of the present invention is urotropine.
[0019]silicate of the present invention and meta-aluminate are sodium salt or sylvite.
The present invention adopts silicate and meta-aluminate to process rebar surface, and in conjunction with film forming passivator, crystallization inhibitor has arrived the main purpose in steel surface film forming.
Heterogeneity high temperature is worn water experiment effect:
Industrial Simulation experiment and industrial application amplification test:
At laboratory condition Imitating, test: the sample that regular reinforcement is cut into Φ 10 * 50mm, utilize sand paper that rebar surface is polished flat smooth, in retort furnace, heat 500 ℃, take out after placing for 1 second after taking-up in resistance rust liquid, be placed on open-air atmosphere, the corrosion state after observation of nature is drenched with rain.
Weight loss method experiment reinforcing bar is A3 plain bar for building.Added engineering Φ 10 * 50mm sample, after the polishing of sand for surface paper, use washing with acetone oil removing, clean with distilled water wash again, in retort furnace, be heated to 500 ℃, fast by the rust inhibitor of heterogeneity, then the sample of crossing water is being contained to 10%(wt) in NaCl solution, adopt weight loss method to investigate the sustained release performance of the reinforcing bar after high temperature resistance rust is processed, detect the corrosion condition of a reinforcing bar every day.
Sample has been carried out to industrial amplification test in Feicheng steel mill, the bar gauge of its production is Φ 16mm simultaneously, and its actual production process is two tanks, front is cooling tank, wears the long 24m of tank, and wearing the water time is 1.6 seconds, after be resistance rust groove, flute length 6.3m, through the time be 0.42 second.Test-results is: through the reinforcing bar of wearing water treatment, after three rain, there is slight rust staining on surface, and appearance effects is little, and does not do the reinforcing bar that resistance rust is processed after wearing water, and after one day, oneself has rust staining to produce, all corrosions after heavy rain.
Claims (2)
1. environment-friendly high-temperature activated water-based reinforcing steel bar corrosion inhibitor, it is characterized in that: this rust inhibitor component and each component concentration per-cent are: silicate 0.1%-0.5%, meta-aluminate 0.1%-0.6%, organic amine 0.1%-0.6%, gluconic acid 0.1%-0.6%, water 98%, each component percentage ratio sum is 100% above, described organic amine be cetylamine, triethylene diamine, trolamine and urotropine any one or multiple.
2. environment-friendly high-temperature activated water-based reinforcing steel bar corrosion inhibitor according to claim 1, is characterized in that: described organic amine is trolamine.
3environment-friendly high-temperature activated water-based reinforcing steel bar corrosion inhibitor according to claim 1, is characterized in that: described organic amine is urotropine.
4environment-friendly high-temperature activated water-based reinforcing steel bar corrosion inhibitor according to claim 1 and 2, is characterized in that: described silicate and meta-aluminate are sodium salt or sylvite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110366575.1A CN102491668B (en) | 2011-11-18 | 2011-11-18 | Environment-friendly high temperature activated water-based rebar rust inhibitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110366575.1A CN102491668B (en) | 2011-11-18 | 2011-11-18 | Environment-friendly high temperature activated water-based rebar rust inhibitor |
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| CN102491668A CN102491668A (en) | 2012-06-13 |
| CN102491668B true CN102491668B (en) | 2014-01-15 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172292B (en) * | 2013-02-25 | 2014-12-24 | 洛阳理工学院 | Composite steel bar rust inhibitor |
| CN103172290B (en) * | 2013-02-25 | 2014-11-26 | 洛阳理工学院 | Environment-friendly reinforcing bar corrosion inhibitor |
| CN103979821B (en) * | 2014-06-03 | 2017-01-25 | 青岛理工大学 | Steel bar corrosion inhibitor |
| CN104829156A (en) * | 2015-04-01 | 2015-08-12 | 中国矿业大学 | Formula and preparation method of impermeable waterproof concrete repairing agent |
| CN107620069A (en) * | 2017-10-10 | 2018-01-23 | 戴琪 | A kind of preparation method of acidification corrosion inhibitor |
| CN107829092A (en) * | 2017-12-26 | 2018-03-23 | 辽宁师范大学 | A kind of environmental type carbon steel corrosion inhibitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101007717A (en) * | 2007-01-25 | 2007-08-01 | 上海市建筑科学研究院(集团)有限公司 | Reinforced concrete anti-rusting agent |
| CN101407385B (en) * | 2008-11-04 | 2011-03-30 | 南京瑞迪高新技术公司 | Alkali-free non-nitrite concrete reinforcement antirust |
| CN101759390B (en) * | 2009-12-25 | 2012-03-07 | 北京工业大学 | Organic reinforced concrete corrosion resistant agent |
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