CN108249800A - A kind of plant type reinforcing steel bar corrosion inhibitor and its preparation method and application - Google Patents
A kind of plant type reinforcing steel bar corrosion inhibitor and its preparation method and application Download PDFInfo
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- CN108249800A CN108249800A CN201810022561.XA CN201810022561A CN108249800A CN 108249800 A CN108249800 A CN 108249800A CN 201810022561 A CN201810022561 A CN 201810022561A CN 108249800 A CN108249800 A CN 108249800A
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- corrosion inhibitor
- steel bar
- reinforcing steel
- bar corrosion
- ginger
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/61—Corrosion inhibitors
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of plant type reinforcing steel bar corrosion inhibitor and its preparation method and application, which by percentage to the quality, contains 50% 100% raw juice of ginger and 0 50% water；Preparation method includes the following steps：(1) ginger is cleaned；(2) mechanical expression ginger obtains raw juice of ginger after filtering；(3) plus water is stirred evenly and is stood；(4) pH value is adjusted to 8.5 12, obtains required reinforcing steel bar corrosion inhibitor.The volume of the reinforcing steel bar corrosion inhibitor for cement cementitious material quality 1% 5%.Reinforcing steel bar corrosion inhibitor raw material sources provided by the invention are extensively and natural, cost economy, preparation process are simple, the green reinforcing steel bar corrosion inhibitor of friendly is saved for environment, have many advantages, such as resistance rust effect it is good, it is easy to use, biodegradable, do not influence that agent on crack resistance of concrete is carbonization and resistance to compression tensile strength energy, it is of great immediate significance to the service life for improving reinforced concrete structure, sale easy to spread and industrial industrialization, have a extensive future.
Description
Technical field
The invention belongs to Materials Science and Engineering fields, and in particular to a kind of plant type reinforcing steel bar corrosion inhibitor and preparation method thereof
And application.
Background technology
In the Service Environment rich in villaumite such as ocean, salt lake and salt-soda soil, reinforced concrete structure is usually because of chlorion
Intrusion and steel bar corrosion is caused to destroy so that structure durability reduce, the lost of life, to national economy and people's life safety
Cause huge damage.At present, China has numerous reinforced concrete structures or will be on active service under bar in chlorine salt solution, such as over strait big
Bridge, large-scale tide-block sluice, port and pier etc..In this context, the resistance for studying armored concrete becomes rusty measure to ensuring under bar in chlorine salt solution
The safe operation of reinforced concrete works and the promotion of durability have a very important significance.
Reinforcing steel bar corrosion inhibitor has obtained many researchs and application, and type also obtains larger abundant, it has also become now the most extensively
One of armored concrete anti-corrosion measure.But to current, more corrosion inhibitor is inorganic, organic or mixing chemicals, is still deposited
In high expensive, toxic, the problems such as cause serious pollution to the environment, and such as widely used calcium nitrite type corrosion inhibitor has carcinogenic
Property, most of organic corrosion inhibitors are poisonous and harmful, using polluting the environment.With highlighting for environmental protection and energy saving problem in recent years,
People gradually recognize the importance of environmental protection and sustainable development, and a large amount of scholars start to be dedicated to " green economizing type environment
The research of friendly corrosion inhibitor ".A large amount of active groups in natural polymer have metal surface a suction-operated, therefore from natural
The hot spot that reinforcing steel bar corrosion inhibitor has become research is extracted in plant and waste products.
Ginger is the herbal fresh rhizome of common Zingiber, in china natural resources very abundant.Ginger oil terpene in ginger,
Gingerol, phellandium, camphor terpene etc. are played rich in a large amount of amino, phthalein amino, nitrogen base, hydrogen-based isoreactivity group, active group
The useful effects such as anti-oxidant, anticorrosive have the chemical basis as reinforcing steel bar corrosion inhibitor.Ginger is largely planted in China, from
Extraction reinforcing steel bar corrosion inhibitor has many advantages, such as cheap, nontoxic, environmentally protective in ginger, can meet concrete structure to corruption
The demand of protection is lost, there is realistic meaning to promoting all kinds of important and heavy industry concrete works service life.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of preparation method of plant type reinforcing steel bar corrosion inhibitor, prepares
Reinforcing steel bar corrosion inhibitor have resistance rust effect it is good, it is easy to use, biodegradable, do not influence that agent on crack resistance of concrete is carbonization and resistance to compression draw it is strong
The advantages that degree energy.
The present invention solve its technical problem the technical solution adopted is that：
A kind of plant type reinforcing steel bar corrosion inhibitor, by percentage to the quality, raw juice of ginger and 0-50% containing 50%-100%
Water.
A kind of preparation method of plant type reinforcing steel bar corrosion inhibitor, includes the following steps：
(1) ginger is cleaned；
(2) mechanical expression ginger obtains raw juice of ginger after filtering；
(3) plus water is stirred evenly and is stood；
(4) supernatant is taken, pH value is adjusted to 8.5-12, obtains required reinforcing steel bar corrosion inhibitor.
As the optimal technical scheme of the application, dwell temperature is 5-50 DEG C in the step (3), time of repose 8-
24h。
As the optimal technical scheme of the application, the acid or alkali that pH is used are adjusted in the step (4),
Acid is nitric acid or phosphoric acid；Alkali is sodium hydroxide or potassium hydroxide.
The present invention also provides application of the above-mentioned plant type reinforcing steel bar corrosion inhibitor in reinforced concrete anti-rusting, the reinforcing bar resistance
The volume of rust agent is the 1%-5% of cement cementitious material quality.
Beneficial effects of the present invention：
Reinforcing steel bar corrosion inhibitor prepared by the present invention is plant type corrosion inhibitor, and raw material sources are extensive and natural, cheap, preparation
It is simple for process, it is environmentally friendly green reinforcing steel bar corrosion inhibitor, solves nitrites reinforcing steel bar corrosion inhibitor and other are organic high
The problems such as adverse effect of the molecule class reinforcing steel bar corrosion inhibitor to human body and the pollution to environment destroy, there is resistance to become rusty, and effect is good, uses
It is convenient, biodegradable, do not influence the advantages that carbonization agent on crack resistance of concrete and resistance to compression tensile strength energy, to improve reinforced concrete structure
Service life be of great immediate significance, sale easy to spread and industrial sector have a extensive future.
Description of the drawings
Corrosion inhibitor prepared by Fig. 1 embodiments 1 and embodiment 2 is in Cl-Reinforcing bar electrode electro Chemical resistance during concentration 0.01mol/L
Anti- spectrogram；
Corrosion inhibitor prepared by Fig. 2 embodiments 1 and embodiment 2 is in Cl-Reinforcing bar electrode electro Chemical during a concentration of 0.1mol/L
Impedance spectra；
E in corrosion inhibitor experimental group prepared by Fig. 3 embodiments 1 and embodiment 2corrWith Cl-Add concentration trend chart；
I in corrosion inhibitor experimental group prepared by Fig. 4 embodiments 1 and embodiment 2corrConcentration trend chart is added with Cl-.
Specific embodiment
For the technical characteristic to the present invention, purpose and effect are more clearly understood, with reference to the accompanying drawings of the specification
And specific embodiment, the present invention is furture elucidated.
Embodiment 1
The ginger of acquisition is washed with clean water, then is squeezed the juice with mechanical juice extractor, raw juice of ginger is obtained after filtering, is added water
It stirs evenly and waits for standing, dwell temperature is 20 DEG C, and time of repose is for 24 hours, by percentage to the quality：Raw juice of ginger 50%,
Addition water 50% mixes, and then adjusts pH value to 9.5 with phosphoric acid and sodium hydroxide solution to get required reinforcing steel bar corrosion inhibitor.
Embodiment 2
The ginger of acquisition is washed with clean water, then is squeezed the juice with mechanical juice extractor, raw juice of ginger is obtained after filtering, is added water
It stirs evenly and waits for standing, dwell temperature is 20 DEG C, and time of repose is for 24 hours, by percentage to the quality：Raw juice of ginger 100%,
Then pH value is adjusted to 9.5 to get to required reinforcing steel bar corrosion inhibitor with phosphoric acid and sodium hydroxide solution.
Reinforcing steel bar corrosion inhibitor made from above-described embodiment is subjected to performance evaluation using experiment, specially：
1. concrete simulated solution is tested
Preprocess method is as follows：By the HPB235 reinforcing bar cuttings of Φ 12mm into the bar dowel stick that length is 5mm, and by bar dowel
The column side of stick is sealed with epoxy resin, and using end face as working face, minute surface is polishing to step by step with aluminium oxide abrasive paper for metallograph.It prepares
Saturated calcium hydroxide solution is added the reinforcing steel bar corrosion inhibitor prepared in above-described embodiment 1 and embodiment 2 by 3% (percent by volume)
Enter into saturated calcium hydroxide solution, and the reinforcing bar for wearing into mirror light is placed in, sealing carries out polarized corrosive nature test afterwards.
Meanwhile test does not add the calcium hydroxide solution of the saturation of corrosion inhibitor to the corrosive nature of sample, as a control group.
Test method is as follows：Using PARSTAT2273 electrochemical workstations, test system uses typical three electrode body
System.
(1) electrochemical impedance spectroscopy test uses sinusoidal voltage of the perturbation amplitude for 10mV, and the frequency range of test is
10mHz~100KHz is fitted arrangement using ZSimpWin softwares to institute's measured data.
(2) -0.015V~0.015V of the dynamic potential polarization curve test scanning current potential for opposite open circuit potential, sweep speed
For 0.2mV/s.In order to obtain preferable effect, the electrokinetic potential test under each experimental condition is at least in triplicate.
(3) corrosion potential EcorrBy E in 2273 type electrochemical workstation PowerCorr modules of PARSTATcorr vs
Time standard forms are tested.
Test result is as follows：
(1) electrochemical impedance spectroscopy：By Fig. 1 and Fig. 2 it is found that experiment initial stage, each curve have larger capacitive reactance arc, show this
When each system in reinforcing bar polarization of electrode resistance it is very big, still in passive state.With the addition of NaCl, the radius of curve is apparent
Become smaller, reinforcing bar polarization resistance drastically becomes smaller, and reinforcing bar has been enter into etch state.And add in the corrosion inhibitor in embodiment 1 and embodiment 2
Afterwards, polarization resistance is significantly improved, the corrosion resistance enhancing of reinforcing bar, which has reinforcing bar good
Hinder rust effect.
(2) corrosion potential method：Corrosion potential EcorrIt is thermodynamically to characterize material corrosion resistance in particular medium
The parameter of trend, EcorrNegative sense value is bigger, and display reinforcing bar is more perishable.Fig. 3 is E in three groups of samplescorrWith Cl-The variation of concentration
Tendency chart, it can be seen from the figure that with Cl-The increase of additive amount, each group EcorrIn the trend gradually reduced, but add real
The reinforcing bar corrosion potential for applying 2 polymerization inhibitor of example 1 and embodiment is significantly shuffled, illustrate the plant type polymerization inhibitor be substantially reduced reinforcing bar by
Cl-The rate of corrosion.
(3) dynamic potential polarization curve：From fig. 4, it can be seen that with Cl-Addition, corrosion electric current density icorrGradually increase
Add, show that rebar passivation film has been destroyed, corrosion rate is gradually speeded.And add the i of the sample of corrosion inhibitorcorrWith Cl-Increase
It is significantly less than control group, illustrates that the plant type corrosion inhibitor is substantially reduced the corrosion rate of reinforcing bar.
2. reinforcement in concrete corrosion test
Method is as follows：The HPB235 reinforcing bars of Φ 12mm are cut into a length of 8cm lengths of rebar, its surface rusty stain is polished with sand paper
Totally, the rebar surface of 4cm is reserved among lengths of rebar as working face, thermoplastic tube and epoxy resin are then used into reinforcing bar both ends
Sealing.Fine aggregate concrete test specimen is molded, size is 40mm × 40mm × 160mm, and cement is 42.5 grades of Portland cements,
Ginger reinforcing steel bar corrosion inhibitor is added 1%, 3% and 5% (relative to cement quality), and set and be not added with ginger by the ratio of mud 0.5 respectively
Reinforcing steel bar corrosion inhibitor is blank control, fixed to keep reinforcing bar in the middle position of concrete.After standard curing 28d ages, by steel
Reinforced concrete test specimen takes out, and is placed into saturated calcium hydroxide solution and carries out corrosion test, corrosion test linear polarization mode
It carries out, and IR compensation is carried out with positive feedback.Test result shows to be shown in Table 1.
1 reinforcement in concrete corrosion test result of table：
As seen from the above table, two embodiments are relative to blank control group, and corrosion potential significantly moves up, and corrosion electric current density is bright
It is aobvious to decline, show that the corrosion of rebar surface is inhibited, corrosion resistance significantly improves.
The protection content of the present invention is not limited to above example.Without departing from the spirit and scope of the invention, originally
Field technology personnel it is conceivable that variation and advantage be all included in the present invention, and using appended claim as protection
Range.
Claims (5)
1. a kind of plant type reinforcing steel bar corrosion inhibitor, which is characterized in that by percentage to the quality, the raw juice of ginger containing 50%-100%
With the water of 0-50%.
2. the preparation method of plant type reinforcing steel bar corrosion inhibitor described in claim 1, which is characterized in that include the following steps：
(1) ginger is cleaned；
(2) mechanical expression ginger obtains raw juice of ginger after filtering；
(3) plus water is stirred evenly and is stood；
(4) supernatant is taken, pH value is adjusted to 8.5-12, obtains required reinforcing steel bar corrosion inhibitor.
3. the preparation method of plant type reinforcing steel bar corrosion inhibitor according to claim 2, which is characterized in that in the step (3)
Dwell temperature is 5-50 DEG C, time of repose 8-24h.
4. the preparation method of plant type reinforcing steel bar corrosion inhibitor according to claim 2, which is characterized in that in the step (4)
Acid or alkali that pH is used are adjusted, acid is nitric acid or phosphoric acid；Alkali is sodium hydroxide or potassium hydroxide.
5. application of the plant type reinforcing steel bar corrosion inhibitor described in claim 1 in reinforced concrete anti-rusting, which is characterized in that described
The volume of reinforcing steel bar corrosion inhibitor is the 1%-5% of cement cementitious material quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022561.XA CN108249800A (en) | 2018-01-10 | 2018-01-10 | A kind of plant type reinforcing steel bar corrosion inhibitor and its preparation method and application |
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| CN201810022561.XA CN108249800A (en) | 2018-01-10 | 2018-01-10 | A kind of plant type reinforcing steel bar corrosion inhibitor and its preparation method and application |
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| CN108249800A true CN108249800A (en) | 2018-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149502A (en) * | 2021-04-30 | 2021-07-23 | 贵州石博士科技股份有限公司 | Method for preparing reinforced concrete rust inhibitor by using eucalyptus tenuifolius leaves |
| CN113955964A (en) * | 2021-11-08 | 2022-01-21 | 河海大学 | Steel bar rust inhibitor prepared from corm barley, and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662940A (en) * | 1984-02-22 | 1987-05-05 | Tri-X Corporation | Sealant composition and leak detector for automobile cooling systems and the like |
| CN102701627A (en) * | 2012-05-28 | 2012-10-03 | 河海大学 | Reinforcing steel bar corrosion inhibitor and preparation method of reinforcing steel bar corrosion inhibitor |
| CN105086555A (en) * | 2015-08-05 | 2015-11-25 | 安徽岍汧漆业有限公司 | Plant preservative special for oil paint and preparing method thereof |
| CN105731853A (en) * | 2016-02-29 | 2016-07-06 | 冯丽娟 | Reinforcing bar rusty retardant agent produced by vegetable waste extracts and application method of rusty retardant agent |
| CN106147306A (en) * | 2015-04-18 | 2016-11-23 | 青岛中天智诚科技服务平台有限公司 | A kind of environment-friendly bionic antirusting paint of resistance to ocean |
| CN106245016A (en) * | 2016-07-28 | 2016-12-21 | 安徽吉思特智能装备有限公司 | Lithotrite surface process water-based antirust that a kind of coatability is good and preparation method thereof |
-
2018
- 2018-01-10 CN CN201810022561.XA patent/CN108249800A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662940A (en) * | 1984-02-22 | 1987-05-05 | Tri-X Corporation | Sealant composition and leak detector for automobile cooling systems and the like |
| CN102701627A (en) * | 2012-05-28 | 2012-10-03 | 河海大学 | Reinforcing steel bar corrosion inhibitor and preparation method of reinforcing steel bar corrosion inhibitor |
| CN106147306A (en) * | 2015-04-18 | 2016-11-23 | 青岛中天智诚科技服务平台有限公司 | A kind of environment-friendly bionic antirusting paint of resistance to ocean |
| CN105086555A (en) * | 2015-08-05 | 2015-11-25 | 安徽岍汧漆业有限公司 | Plant preservative special for oil paint and preparing method thereof |
| CN105731853A (en) * | 2016-02-29 | 2016-07-06 | 冯丽娟 | Reinforcing bar rusty retardant agent produced by vegetable waste extracts and application method of rusty retardant agent |
| CN106245016A (en) * | 2016-07-28 | 2016-12-21 | 安徽吉思特智能装备有限公司 | Lithotrite surface process water-based antirust that a kind of coatability is good and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| H. S. GADOW等: "Investigation of the corrosion inhibition of carbon steel in hydrochloric acid solution by using ginger roots extract", 《RSC ADV.》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149502A (en) * | 2021-04-30 | 2021-07-23 | 贵州石博士科技股份有限公司 | Method for preparing reinforced concrete rust inhibitor by using eucalyptus tenuifolius leaves |
| CN113955964A (en) * | 2021-11-08 | 2022-01-21 | 河海大学 | Steel bar rust inhibitor prepared from corm barley, and preparation method and application thereof |
| CN113955964B (en) * | 2021-11-08 | 2022-09-23 | 河海大学 | Steel bar rust inhibitor prepared from corm barley, and preparation method and application thereof |
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Application publication date: 20180706 |