CN102491668A - 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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- CN102491668A CN102491668A CN2011103665751A CN201110366575A CN102491668A CN 102491668 A CN102491668 A CN 102491668A CN 2011103665751 A CN2011103665751 A CN 2011103665751A CN 201110366575 A CN201110366575 A CN 201110366575A CN 102491668 A CN102491668 A CN 102491668A
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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%-1.5% of a silicate, 0.1%-1.5% of a meta-aluminate, 0.1%-1.5% of organic amine, 0.1%-1.5% of gluconic acid, and 90%-96% of water. 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 the metal corrosion and protection technical field, a kind of specifically anti-corrosion of metal is used the high temperature rust inhibitor.
Background technology
Steel resistance rust Study on Technology has experienced veryer long process.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 confirmed the basic law of corrosion of metal and oxidation; Establish theoretical basis for metal resistance rust Study on Technology, produced the resistance rust technology of multiple different metallic material then.At present, relatively the ferrous materials of moulding resistance rust technology comprises: coating resistance rust is technological, inhibiter is technological, reinforcing bar rust inhibitor and weathering steel technology etc.Not only theoretical basis is clear and definite for these several kinds of technology, and has obtained application in some field, realize that the ultimate principle that the rust of metallic surface resistance is rapidly and efficiently handled is exactly to form layer protecting film in the metallic surface, thereby blocking oxygen reaches the effect that hinders rust with contacting of Fe.The method of realizing this goal mainly contains two kinds of methods: top coat and surface chemistry oxidation style.
Thereby the top coat method is exactly to apply one deck oxidation-resistant film reaches the resistance rust with secluding air purpose in the metallic surface.Because we hinder rust to handle in the reinforcing bar production process, the top coat method is difficult to effectively carry out fast, and cost is too high.The tradition organic film plating is unstable under hot conditions, and be difficult to be implemented in rebar surface and evenly apply, the practical application of reinforcing bar after being not easy to simultaneously, as carry out soldering etc.; Chemical oxidization method is a method of utilizing chemical oxidation, and the final compound that forms fine and close high price Fe in the metallic surface is difficult for losing electronics, therefore is difficult for by extraneous oxygen, salt and electrolyte corrosion.The surface chemistry oxidation style is convenient under hot conditions quick, carries out efficiently.If reinforcing bar is under the condition of high temperature polyoxy usually, generate fine and close Fe2O3 and Fe3O4 film easily, can play the effect of secluding air naturally.But reinforcing bar is a cooling, oxygen barrier process in wearing the water process, is difficult to form compact protective film.Traditional method is to utilize nitrite and heavy metal phosphoric acid salt to carry out surface oxidation treatment.Nitrite is too big in the actual production process toxic, and is big to the field worker injury, and the phosphating process deposition 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 defective, the purpose of this invention is to provide a kind of nontoxic, pollution-free, water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation that resistance rust is effective.
Technical scheme of the present invention is: the water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation, this rust inhibitor component and each component concentration per-cent are: silicate 0.1%-1.5%, meta-aluminate 0.1%-1.5%, organic amine 0.1%-1.5%, glucono-0.1%-1.5%, water 90%-96%.
Organic amine of the present invention be cetylamine, triethylene diamine, trolamine and urotropine any one or multiple.
Organic amine of the present invention is a trolamine.
Organic amine of the present invention is a urotropine.
Rust inhibitor component of the present invention and each component concentration per-cent are: water glass 0.1%-0.5%, sodium metaaluminate 0.1%-0.6%, organic amine 0.1%-0.6%, glucono-
0.1%-0.6%, water 90%-98%.
Silicate of the present invention and meta-aluminate are sodium salt or sylvite.
Preparing method of the present invention gets final product for accurately taking by weighing a component mixing, heating, stirring, finished product packing in proportion.
The invention has the beneficial effects as follows: 1, to adopt silicate and meta-aluminate be main ingredient in the present invention, cooperates other components, have nontoxic, pollution-free, cost is low, characteristics such as environmental friendliness.
2, the present invention compared with prior art has the effective advantage of resistance rust.
Embodiment
Technical scheme of the present invention is: the water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation, this rust inhibitor component and each component concentration per-cent are: silicate 0.1%-1.5%, meta-aluminate 0.1%-1.5%, organic amine 0.1%-1.5%, glucono-0.1%-1.5%, water 90%-96%.
Organic amine of the present invention be cetylamine, triethylene diamine, trolamine and urotropine any one or multiple.
Organic amine of the present invention is a trolamine.
Organic amine of the present invention is a urotropine.
Rust inhibitor component of the present invention and each component concentration per-cent are: water glass 0.1%-0.5%, sodium metaaluminate 0.1%-0.6%, organic amine 0.1%-0.6%, glucono-
0.1%-0.6%, water 90%-98%.
Silicate of the present invention and meta-aluminate are sodium salt or sylvite.
The present invention adopts silicate and meta-aluminate that rebar surface is handled, and in conjunction with film forming passivator, crystallization inhibitor has arrived in the film forming main purpose of steel surface.
Heterogeneity high temperature is worn the water experiment effect:
| Inhibiter | Experiment effect |
| Pure water | Rusty stain is arranged two days later, corrosion fully behind the rainfall.Utilizing weight loss method that direct high temperature is worn reinforcing bar behind the water, to measure its rate of weight loss be 0.5% after one day, is 4.2% after 1.5%, three day two days later |
| Water glass 0.1% sodium metaaluminate 0.1% trolamine 0.1%, glucono-0.1% | Dryness ten days does not have obvious rusty stain, and beginning behind three rain has slight rust staining.Utilizing weight loss method that direct high temperature is worn its rate of weight loss of the cooled reinforcing bar mensuration of rust inhibitor is 0.02% after one day, and after 0.03%, three day being two days later is 0.5% after 0.07%, 7 day. |
| Water glass 0.2% sodium metaaluminate 0.1% trolamine 0.1%, glucono-0.1% | Rebar surface turns white, and dryness ten days does not have obvious rusty stain, and beginning behind three rain has slight rust staining.Utilizing weight loss method that direct high temperature is worn its rate of weight loss of the cooled reinforcing bar mensuration of rust inhibitor is 0.03% after one day, and after 0.04%, three day being two days later is 0.7% after 0.09%, 7 day. |
| Water glass 0.1% sodium metaaluminate 0.2% trolamine 0.1%, glucono-0.1% | Dryness ten days does not have obvious rusty stain, and beginning behind three rain has slight rust staining.Utilizing weight loss method that direct high temperature is worn its rate of weight loss of the cooled reinforcing bar mensuration of rust inhibitor is 0.01% after one day, and after 0.04%, three day being two days later is 0.9% after 0.07%, 7 day. |
| Water glass 0.3% sodium metaaluminate 0.1% trolamine 0.1%, glucono-0.1% | Dryness ten days does not have obvious rusty stain, and beginning behind three rain has slight rust staining.Utilizing weight loss method that direct high temperature is worn its rate of weight loss of the cooled reinforcing bar mensuration of rust inhibitor is 0.02% after one day, and after 0.03%, three day being two days later is 0.3% after 0.07%, 7 day. |
| Water glass 0.3% sodium metaaluminate 0.1% urotropine 0.1%, glucono-0.1% | Dryness ten days does not have obvious rusty stain, and beginning behind three rain has slight rust staining.Utilizing weight loss method that direct high temperature is worn its rate of weight loss of the cooled reinforcing bar mensuration of rust inhibitor is 0.02% after one day, and after 0.04%, three day being two days later is 0.2% after 0.07%, 7 day. |
Industry simulated experiment and industrial application amplification test:
Simulated experiment under laboratory condition: the sample that regular reinforcement is cut into Φ 10 * 50mm; It is smooth to utilize sand paper that rebar surface is polished flat, and heating is 500 ℃ in retort furnace, takes out and takes out 1 second was placed in the back in resistance rust liquid after; Be placed on open-air atmosphere, the corrosion state after observation of nature is drenched with rain.
Weight loss method experiment reinforcing bar is an A3 plain bar for building.It is added engineering Φ 10 * 50mm sample; The surface is with using the washing with acetone oil removing after the sand papering, and is clean with distilled water wash again, in retort furnace, is heated to 500 ℃; Quick rust inhibitor through heterogeneity; The sample that to cross water then adopts weight loss method to investigate the sustained release performance of the reinforcing bar after high temperature resistance rust is handled in containing 10% (wt) NaCl solution, detects the corrosion situation of a reinforcing bar every day.
Steel mill has carried out industrial amplification test in Feicheng with sample simultaneously, and the bar gauge of its production is Φ 16mm, and its actual production process is two tanks; The front is a cooling tank, wears the long 24m of tank, and wearing the water time is 1.6 seconds; The back is resistance rust groove, flute length 6.3m, and the time of passing is 0.42 second.Test-results is: through reinforcing bar that wearing water treatment through three rain after, there is slight rust staining on the surface, appearance effects is little, and does not do the reinforcing bar that the resistance rust is handled after wearing water, oneself has rust staining to produce after one day, all corrosions behind the heavy rain.
Claims (6)
1. the water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation, it is characterized in that: this rust inhibitor component and each component concentration per-cent are: silicate 0.1%-1.5%, meta-aluminate 0.1%-1.5%, organic amine 0.1%-1.5%, glucono-0.1%-1.5%, water 90%-96%.
2. the water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation according to claim 1 is characterized in that: described organic amine be cetylamine, triethylene diamine, trolamine and urotropine any one or multiple.
3. the water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation according to claim 1 is characterized in that: described organic amine is a trolamine.
4. the water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation according to claim 1 is characterized in that: described organic amine is a urotropine.
5. the water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation according to claim 1 and 2 is characterized in that: described rust inhibitor component and each component concentration per-cent are: water glass 0.1%-0.5%, sodium metaaluminate 0.1%-0.6%, organic amine 0.1%-0.6%, glucono-0.1%-0.6%, water 90%-98%.
6. the water base reinforcing bar rust inhibitor of environment-friendly high-temperature activation according to claim 1 and 2 is characterized in that: described silicate and meta-aluminate are sodium salt or sylvite.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172292A (en) * | 2013-02-25 | 2013-06-26 | 洛阳理工学院 | Composite steel bar rust inhibitor |
| CN103172290A (en) * | 2013-02-25 | 2013-06-26 | 洛阳理工学院 | Environment-friendly reinforcing bar corrosion inhibitor |
| CN103979821A (en) * | 2014-06-03 | 2014-08-13 | 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 |
| CN101407385A (en) * | 2008-11-04 | 2009-04-15 | 南京瑞迪高新技术公司 | Alkali-free non-nitrite concrete reinforcement antirust |
| CN101759390A (en) * | 2009-12-25 | 2010-06-30 | 北京工业大学 | Organic reinforced concrete corrosion resistant agent |
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2011
- 2011-11-18 CN CN201110366575.1A patent/CN102491668B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101407385A (en) * | 2008-11-04 | 2009-04-15 | 南京瑞迪高新技术公司 | Alkali-free non-nitrite concrete reinforcement antirust |
| CN101759390A (en) * | 2009-12-25 | 2010-06-30 | 北京工业大学 | Organic reinforced concrete corrosion resistant agent |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172292A (en) * | 2013-02-25 | 2013-06-26 | 洛阳理工学院 | Composite steel bar rust inhibitor |
| CN103172290A (en) * | 2013-02-25 | 2013-06-26 | 洛阳理工学院 | Environment-friendly reinforcing bar corrosion inhibitor |
| CN103172290B (en) * | 2013-02-25 | 2014-11-26 | 洛阳理工学院 | Environment-friendly reinforcing bar corrosion inhibitor |
| CN103172292B (en) * | 2013-02-25 | 2014-12-24 | 洛阳理工学院 | Composite steel bar rust inhibitor |
| CN103979821A (en) * | 2014-06-03 | 2014-08-13 | 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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| CN102491668B (en) | 2014-01-15 |
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