CN106189366B - An a kind of step in-situ synthesis for organo-mineral complexing anti-corrosion paint - Google Patents
An a kind of step in-situ synthesis for organo-mineral complexing anti-corrosion paint Download PDFInfo
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- CN106189366B CN106189366B CN201610547100.5A CN201610547100A CN106189366B CN 106189366 B CN106189366 B CN 106189366B CN 201610547100 A CN201610547100 A CN 201610547100A CN 106189366 B CN106189366 B CN 106189366B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/04—Compounds of zinc
- C09C1/046—Compounds of zinc containing phosphorus
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/041—Grinding
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/043—Drying, calcination
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
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Abstract
The invention belongs to technical field of inorganic, and in particular to an a kind of step in-situ synthetic method of organo-mineral complexing anti-corrosion paint.The ingenious temperature that reaction system is improved using liberated heat during phosphate radical and zinc ion reaction generation trbasic zinc phosphate of a step in-situ synthesis that the present invention uses, so as to greatly improve the solubility of BTA；And the BTA after dissolving is attached to the surface of trbasic zinc phosphate nucleus, the growth of trbasic zinc phosphate crystal is effectively inhibited, makes the control of its grain size in nanometer scale；After zinc nitrate and sodium phosphate reaction terminate, the Wen Duxiajiang of reaction system, the solubility of BTA reduces also with the decline of temperature, separated out from system and be coated on the surface of Zinc Phosphate Nano-crystalline body securely, final obtain forms fixed, constitutionally stable trbasic zinc phosphate/BTA organo-mineral complexing anti-corrosion paint, and the product of acquisition has the characteristics that good dispersion, particle diameter are small, antiseptic property is excellent.
Description
Technical field
The invention belongs to domain of inorganic chemistry, and in particular to an a kind of step fabricated in situ of organo-mineral complexing anti-corrosion paint
Method.
Background technology
Metal erosion phenomenon and its harm are widely present in daily life with industrial production, directly being passed through caused by corrosion
Ji loss is quite huge.The main method of general control metal erosion has：(1) according to the different corresponding metal materials of environmental selection
Material, researches and develops corrosion resistant metal alloy；(2) add protective layer on the surface of metal material, make metal material and corrosive environment every
From；(3) in the environment or metal material surface adds corrosion inhibiter, the speed of corrosion is slowed down；(4) electrochemical method is used, makes corruption
Lose reduced rate or the method protection metal material of stopping.In above-mentioned anti-corrosion method, most economical, most effective and application is the widest
General method is metal material surface addition protective layer, i.e. anti-corrosion paint protects.At present, anti-corrosion paint is different according to feature,
Anti-corrosion paint can be divided into three major types, be active anti-corrosion paint, shielding anti-corrosion paint and sacrificial anti-corrosion paint respectively, and
These anti-corrosion paints are mainly based on inorganic anti-corrosion pigment and its composite anti-corrosion pigment.
Divided according to the chemical composition of anti-corrosion paint, anti-corrosion paint is divided into following several types：（1）Phosphate and its change
Property this kind of anti-corrosion paint toxicity of anti-corrosion paint is low, belongs to environmentally friendly anti-corrosion paint.On phosphatic anticorrosion mechanism,
It is widely considered to be：Phosphate discharges phosphate anion after hydrolyzing, and phosphate anion forms chelate, the chela with metal ion
Compound is covered in metal material surface as layer protecting film and hinders corrosive environment to corrosion of metal.Phosphate is in hot conditions
It can also produce down more stable without volatile pyrophosphate, the more firm diaphragm of formation.Research is compared at present
Ripe series of phosphate product main Types have orthophosphates, Quadrafos, meta-aluminate, trbasic zinc phosphate and aluminium triphosphate, with
And the study on the modification of all kinds of phosphate anti-corrosion paints.（2）Zinc oxide and its modified composite pigment nano zine oxide are due to its uniqueness
Physics and chemical property be referred to as multifunctional material.Nano zine oxide has very big as anti-corrosion paint in anticorrosive paint industry
Application potential, but its antiseptic property has much room for improvement.And the nano combined pigment formed through overdoping or surface modification can be with
Make the antiseptic property of zinc oxide be improved.（3）Borate-based anti-corrosion paint borate be mostly semi-transparent clear crystal or
White powder, it is a kind of nontoxic environmentally friendly anti-corrosion paint.The anticorrosion mechanism of borate, mainly can be molten in electrolyte
Borate ion is discharged in liquid, the further corrosion of one layer of fine and close diaphragm obstruction metal is formed with metal ion.Boric acid
The representative of salt system is mainly Firebrake ZB, and Firebrake ZB has unique antiseptic property, can be compatible with various resins, its hydrolysate energy
It is enough that uniformly complete passive oxidation film is formed in metal surface.In addition, Firebrake ZB has stronger antiseptic power, in suitable bar
Under part, neutralization can be played, so as to upset the foundation for causing the environment of corrosion and losing the anode and cathode zone of adhesive force,
The antiseptic property of boric acid spelter coating is suitable with the antiseptic property of zinc or the chromate coatings of strontium（Chen Jianming, Song Yunhua, Fu Jiwen,
Low-hydrate zinc borate (ZB2335) research [J] material science and technique, 2004,12 (5) are prepared Deng microwave heating:529-
531）.When Firebrake ZB shares with other anti-corrosion paints such as trbasic zinc phosphate, modified barium metaborate and hydration aluminium triphosphate zinc, it can produce
Synergy, greatly improves its antiseptic property.
Metaborate in borate can also be used as anti-corrosion paint.Metaborate is public by the Buckman in the U.S. earliest
Department's production, be barium metaborate class product.It is the easy moisture absorption of unmodified barium metaborate, caking, poor with resin compatible, with without fixed
Shape is hydrated SiO2After barium metaborate coating modification, there is following Anticorrosive Character：First, neutrality, can neutralize free acid, when big
CO in gas2During into paint film, subcarbonate can be prevented in ironing surface generation；Second, microsolubility, the Ba discharged2+And BO2-
The anode reaction of corrosion is carried out round about, prevent the reaction between hydroxide ion and ferrous ion, while Ba2+And BO2-
With Fe2+Reaction generation metallic soap, reduce the water penetration of paint film.In addition, modified barium metaborate has excellent anti-powdering energy
Power, also make its antiseptic effect more preferably.（4）Silicate anti-corrosion paint silicate composite anti-corrosive color chemistry stability is high,
Fine and close, stable coating can be formed in metal surface, and then reduces water, oxonium ion to the transmitance of paint film, and product environmental protection
Nontoxic, the characteristic such as have quick-drying, adhesive force excellent is currently widely used in naval vessel, drilling platforms, coastal facility and factory and set
The anti-corrosion of the various steel constructions such as standby, pipeline, basin, pylon, bridge.Silicate belongs to shield type anti-corrosion paint, because its master
Body composition is silicon, and the protective coating of densification is formed by it.If along with other chemical elements are for silicate sturcture
Change and cooperative effect, antiseptic property are further lifted.（5）Molybdate series anti-corrosion paint hydrochlorate pigment is lead base and chromium
The secure replacement product of acidic group anti-corrosion paint, molybdate passivation film effect make steel surface generate passivation layer, and this passivation layer forms one
The splendid iron oxide modified coating of kind adhesive force, while the mixed oxide of molybdenum and iron can also be generated, play antisepsis.
The presence of the compound of molybdenum can also strengthen the resistance to polarizability of steel surface, while reduce the critical current density needed for passivation
And the stability of passivating film is added, it can improve the corrosion resistance of base material particularly in the presence of chloride, prevent
Rotten effect can mutually be equal to chromate anti-corrosion paint, be comparatively ideal novel anticorrosion pigment.At present, foreign countries are by molybdate anti-corrosion
Pigment is applied in High Performance Corrosion Protective Coatings.Sherwin-Williams companies of the U.S. successfully develop molybdate pigment series
Product, the wherein second generation are modified molybdate anti-corrosion paint Moly-White MZAP（Calcium zinc phosphomolybdate）Antiseptic property be better than chromium
Hydrochlorate.L.Veleva et al.（Veleva L, Chin J, Amo B D.Corrosion Electrochemical Behavior
of Epoxy Antieorrosive Paints Based on Zinc Molybdenum Phosphate and Zinc
Oxide [J] .Progress in Organic Coatings, 1999, (04):211-216.）By phosphomolybdic acid zinc and zinc oxide
Found during with the use of in epoxy coating, under the conditions of existing for zinc oxide, molybdate anion and zinc oxide particle surfaces
Positive charge attract each other, prevent zinc oxide generation zinc hydroxide and inhibit the decomposition of phosphomolybdic acid zinc, while in metal watch
Face forms barrier layer, improves the antiseptic property of the system.（6）Other class anti-corrosion paints such as ferrite system anti-corrosion paint, it
It is a kind of environmentally friendly anti-corrosion paint.It is using ferroso-ferric oxide as carrier, with nano-powder material it is compound prepared by.It is multiple
Close the anticorrosion mechanism of ferrotitanium powder：First, the iron molecule reaction generation ferric phosphate network of the phosphate radical particle and steel surface in carrier
Salt, it can be securely attached to steel surface；Second, ferrotitanium powder has sympathy and stronger adhesive force to steel, can be direct
One layer of passivating film of generation is oxidized in steel surface, prevents the generation of corrosion；Third, nano-powder material is largely
The structure of film is changed, makes smooth coating, densification, effectively hinders H2O, Cl-And O2Deng the erosion to steel surface.Receive
Rice composite iron-titanium powder has physical preservation and the dual anticorrosion mechanism of chemical preservation.In addition, nano combined ferrotitanium powder may be used also
To improve the rheological characteristic of coating, the performance such as the further adhesive force for improving coating, hardness, glossiness.Wang Fengying（Wang Feng English water
Development [J] coatings industries of the nano combined ferrotitanium anticorrosive paint of property, 2007,37 (5):8-11）Using different type emulsion as
Base-material, WD-A types powder in nano combined ferrotitanium powder anti-corrosion paint and WD-D types powder are mixed in certain proportion, prepare sexual valence
Than high, high comprehensive performance water-based anticorrosive paint.For another example micaceous iron oxide system anti-corrosion paint, micaceous iron oxide are that one kind has
The natural iron ore of similar mica layer structure, it is the good raw material of anticorrosive paint in production to generally believe it.Foreign countries, especially exist
Europe and Japan, the application of micaceous iron oxide is very universal, and its anticorrosion mechanism is studied, it is believed that micaceous iron oxide
The reason for antiseptic property is excellent is that good laminated structure makes it have very high covering power and has strong suction for ultraviolet
Adduction, this characteristic make micaceous iron oxide have strong anti-atmosphere pollution and UV resistance.Micaceous iron oxide is in general
There is good antiseptic property in corrosive environment, but need in relatively harsh environment to match somebody with somebody with other anti-corrosion paints such as zinc powder etc.
Close using requirement for anticorrosion could be met.For such case, two methods can be used to improve the antiseptic property of micaceous iron oxide：One
It is in one layer of organic inhibitor of micaceous iron oxide Surface coating, inhibition, corrosion-resistant effect can be effectively acted as；It is another then be to adopt
With the method for inorganic coating, one layer of inorganic substances of cladding are deposited in mica iron surface, so as to hinder the erosion of corrosive medium.
Found by prior art comparative analysis, develop the heat that anti-corrosion paint of new generation falls over each other research as researcher
Point.And inorganic anti-corrosion pigment is when in use, the antiseptic effect at initial stage is not brought into play, causes the anti-corrosion of a period of time weak
Area.And organic anti-corrosive pigment then has the advantages of anti-corrosion is rapid-action.If both can organically be combined, it is possible to real
Existing anti-corrosion is permanently effective and without anti-corrosion weak area.The exploitation of this kind of anti-corrosion paint, before necessarily having extremely wide market application
Scape.
The present invention creatively proposes a kind of organic to promote the practical paces of organo-mineral complexing anti-corrosion paint
One step in-situ synthesis of inorganic compounding anti-corrosion paint.Currently invention addresses the efficient quick conjunction of organo-mineral complexing anti-corrosion paint
Into eliminating the compound complicated technology that first synthesizes again of conventional art, and can obtain that composition is fixed, constitutionally stable anti-corrosion face
Material.
The organo-mineral complexing anti-corrosion paint that the present invention obtains, it can realize that anti-corrosion is permanently effective and without weak area, can be with
It is widely used in metal heavy-duty field.Because the preparation method that the present invention uses has, equipment is simple, combined coefficient is high, production
Cost is low, product good dispersion, antiseptic property are excellent and the features such as without anti-corrosion weak area, therefore, there is wide market to apply
Prospect.
The content of the invention
It is an object of the invention to propose a step in-situ synthesis of organo-mineral complexing anti-corrosion paint, it is equal to obtain particle diameter
The organo-mineral complexing anti-corrosion paint even, antiseptic property is excellent.
A kind of one step in-situ synthesis of organo-mineral complexing anti-corrosion paint that the present invention explores, is comprised the following steps that：
A, appropriate BTA and zinc nitrate solid are weighed, add deionized water and form dispersion；B, in ultrasonic wave dispersion condition
Under, it is slowly dropped into sodium radio-phosphate,P-32 solution into above-mentioned system；C, after zinc nitrate and sodium phosphate reaction completely, by reaction vessel from super
Taken out in sound wave disperser, still aging 1 to 5 hour at room temperature；D, the precipitation of acquisition is washed with deionized, in an oven
Dry, grinding, that is, obtain organo-mineral complexing anti-corrosion paint, the preparation method is to utilize phosphate radical and zinc ion reaction generation phosphorus
Liberated heat during sour zinc, the temperature of whole reaction system is set to increase, so as to greatly improve the solubility of BTA；And
BTA after dissolving is attached to the surface of trbasic zinc phosphate nucleus, effectively inhibits the growth of trbasic zinc phosphate crystal；When zinc nitrate with
After sodium phosphate reaction terminates, the Wen Duxiajiang of reaction system, the solubility of BTA reduces also with the decline of temperature, from
Separated out in system and be coated on the surface of Zinc Phosphate Nano-crystalline body securely, it is final to obtain organo-mineral complexing anti-corrosion paint, obtain
Product have the characteristics that chemical composition fix, Stability Analysis of Structures, good dispersion, particle diameter it is small.It is added to painting as anti-corrosion paint
In material, the adhesive force of manufactured paint film and base material is good, solves because trbasic zinc phosphate particle too big, poor dispersion etc. cause to reunite
And the problems such as being difficult to be spread evenly across corrosion metallic matrix surface；The Zn-N keys generated during a step fabricated in situ form chela
Compound is covered in metal base surface, compensate for the shortcomings that inorganic anti-corrosion can not protect metal material well in the early stage.Then
Protective system is attached to etched the matrix surface by generating difficultly-soluble phosphates diaphragm, so as to further hinder the hair of corrosion
It is raw.Testing impedance test result indicates that, increase on year-on-year basis with the trbasic zinc phosphate impedance value that is prepared under the same terms several times greater to more than ten times.
The ratio between amount of material of trbasic zinc phosphate and BTA is 1 in the present invention:1~4:1.
Zinc source in the present invention is zinc nitrate, and phosphoric acid root is sodium phosphate.
In the present invention, grinding is soft-agglomerated between organo-mineral complexing anti-corrosion paint product in order to reduce.
In the present invention, due to substantial amounts of heat can be produced in phosphate radical and zinc ion course of reaction, be advantageous to BTA
Dissolving, and after the temperature for reacting end system reduces, BTA separates out from system, can be coated on phosphoric acid securely again
The surface of zinc crystal, suppress the further growth of trbasic zinc phosphate crystal, so as to obtain organo-mineral complexing of the yardstick in nanometer scale
Anti-corrosion paint.
The invention has the advantages that：
1st, the present invention prepares trbasic zinc phosphate BTA organic-inorganic nanocomposite anti-corrosion using a step in-situ synthesis first
Pigment.
2nd, in the present invention on the one hand inorganic corrosion inhibitor trbasic zinc phosphate effectively compensate in anti-corrosive properties due to the addition of BTA
" weak area " on energy, and can is enough to play a part of crystal face inhibitor in trbasic zinc phosphate crystal growing process, effectively suppresses crystal
Growth, make the size controlling of trbasic zinc phosphate in nanometer scale；
3rd, the present invention releases a large amount of due to creatively employing a step in-situ synthesis, when phosphate radical reacts with zinc ion
Heat, solve the difficult problem of the dissolved solution of BTA that other complex methods can not be realized, and utilize BTA
The characteristics of solubility increases reduction with the lifting of temperature, BTA and trbasic zinc phosphate are firmly combined together.
4th, preparation method of the invention makes firmly compound between trbasic zinc phosphate and BTA, and is made up of and stably fixed
Material structure, the antiseptic property of the composite anti-corrosive pigment is far better than both direct mixed antiseptic properties.
5th, the present invention enormously simplify preparation technology, reduce production cost, and do not produce in process of production waste water,
The industrial pollution such as waste residue and waste gas, belongs to green chemistry.
Embodiment：
Below by specific embodiment, the present invention is further illustrated.
Embodiment 1：
It is 1 according to the mol ratio of trbasic zinc phosphate and BTA:1,3.0 g sodium phosphate and 1.3 g benzo are weighed respectively
Triazole is scattered in 100 mL deionized water, forms dispersion A；The zinc nitrate for weighing 3.5 g is scattered in 100 mL's
Dispersion B is formed in deionized water.The reactor for filling dispersion A is placed in ultrasonic disperser, the frequency of ultrasonic wave
Rate is arranged to 70 kHz.Above-mentioned B systems are slowly added dropwise in A systems, and are constantly stirred, the speed of stirring is 600
R/min, after being added dropwise, reaction vessel is taken out from ultrasonic disperser, at room temperature still aging 2 h.It will precipitate
Filter, and after being washed with deionized, be placed in 95 DEG C of baking oven and dry 2 h, grinding, that is, obtain organo-mineral complexing anti-corrosion face
Material.The anti-corrosion paint, which is added in coating, is made paint film, and testing impedance result of study shows, impedance value is up to 1286 during 72 h
ohm·cm2, it is 11.8 times of trbasic zinc phosphate powder.
Embodiment 2
It is 2 according to the mol ratio of trbasic zinc phosphate and BTA:1,3.0 g sodium phosphate and 1.0 g benzo are weighed respectively
Triazole is scattered in 100 mL deionized water, forms dispersion A；The zinc nitrate for weighing 3.5 g is scattered in 100 mL's
Dispersion B is formed in deionized water.The reactor for filling dispersion A is placed in ultrasonic disperser, the frequency of ultrasonic wave
Rate is arranged to 70 kHz.Above-mentioned B systems are slowly added dropwise in A systems, and are constantly stirred, the speed of stirring is 600
R/min, after being added dropwise, reaction vessel is taken out from ultrasonic disperser, at room temperature still aging 2 h.It will precipitate
Filter, and after being washed with deionized, be placed in 95 DEG C of baking oven and dry 2 h, grinding, that is, obtain organo-mineral complexing anti-corrosion face
Material.The anti-corrosion paint, which is added in coating, is made paint film, and testing impedance result of study shows, impedance value is up to 1392 during 72 h
ohm·cm2, it is 12.8 times of trbasic zinc phosphate powder.
Embodiment 3
It is 3 according to the mol ratio of trbasic zinc phosphate and BTA:1,3.0 g sodium phosphate and 0.7 g benzo are weighed respectively
Triazole is scattered in 100 mL deionized water, forms dispersion A；The zinc nitrate for weighing 3.5 g is scattered in 100 mL's
Dispersion B is formed in deionized water.The reactor for filling dispersion A is placed in ultrasonic disperser, the frequency of ultrasonic wave
Rate is arranged to 70 kHz.Above-mentioned B systems are slowly added dropwise in A systems, and are constantly stirred, the speed of stirring is 600
R/min, after being added dropwise, reaction vessel is taken out from ultrasonic disperser, at room temperature still aging 5 h.It will precipitate
Filter, and after being washed with deionized, be placed in 95 DEG C of baking oven and dry 2 h, grinding, that is, obtain organo-mineral complexing anti-corrosion face
Material.The anti-corrosion paint, which is added in coating, is made paint film, and testing impedance result of study shows, impedance value is up to 933.9 during 72 h
ohm·cm2, it is 8.6 times of trbasic zinc phosphate powder.
Embodiment 4
It is 4 according to the mol ratio of trbasic zinc phosphate and BTA:1,3.0 g sodium phosphate and 0.3 g benzo are weighed respectively
Triazole is scattered in 100 mL deionized water, forms dispersion A；The zinc nitrate for weighing 3.5 g is scattered in 100 mL's
Dispersion B is formed in deionized water.The reactor for filling dispersion A is placed in ultrasonic disperser, the frequency of ultrasonic wave
Rate is arranged to 70 kHz.Above-mentioned B systems are slowly added dropwise in A systems, and are constantly stirred, the speed of stirring is 600
R/min, after being added dropwise, reaction vessel is taken out from ultrasonic disperser, at room temperature still aging 1 h.It will precipitate
Filter, and after being washed with deionized, be placed in 95 DEG C of baking oven and dry 2 h, grinding, that is, obtain organo-mineral complexing anti-corrosion face
Material.The anti-corrosion paint, which is added in coating, is made paint film, and testing impedance result of study shows, impedance value is up to 630.9 during 72 h
ohm·cm2, it is 5.8 times of trbasic zinc phosphate powder.
Claims (2)
1. an a kind of step in-situ synthesis of organo-mineral complexing anti-corrosion paint, specific synthesis step are as follows：A, weigh appropriate
BTA and zinc nitrate solid, add deionized water and form dispersion；B, under ultrasonic wave dispersion condition, to above-mentioned system
In be slowly dropped into sodium radio-phosphate,P-32 solution；C, after zinc nitrate and sodium phosphate reaction completely, by reaction vessel from ultrasonic disperser
Take out, at room temperature still aging 1-5 hours；D, the precipitation of acquisition is washed with deionized, dried in an oven, ground, i.e.,
Organo-mineral complexing anti-corrosion paint is obtained, the preparation method is put during reacting generation trbasic zinc phosphate with zinc ion using phosphate radical
The heat gone out, the temperature of whole reaction system is set to increase, so as to greatly improve the solubility of BTA；And the benzo after dissolving
Triazole is attached to the surface of trbasic zinc phosphate nucleus, effectively inhibits the growth of trbasic zinc phosphate crystal；When zinc nitrate and sodium phosphate reaction are tied
Shu Hou, the Wen Duxiajiang of reaction system, the solubility of BTA are reduced also with the decline of temperature, separated out simultaneously from system
The surface of Zinc Phosphate Nano-crystalline body is coated on securely, it is final to obtain organo-mineral complexing anti-corrosion paint, the organic-inorganic of acquisition
Composite anti-corrosive pigment products chemical composition is fixed, Stability Analysis of Structures, good dispersion, particle diameter are small.
An a kind of 2. step in-situ synthesis of organo-mineral complexing anti-corrosion paint according to claim 1, it is characterised in that
The ratio between amount of material of trbasic zinc phosphate and BTA is 1:1~4:1.
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| CN201610547100.5A CN106189366B (en) | 2016-07-13 | 2016-07-13 | An a kind of step in-situ synthesis for organo-mineral complexing anti-corrosion paint |
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| CN107573744B (en) * | 2017-09-14 | 2019-08-16 | 浙江加州国际纳米技术研究院台州分院 | The method for preparing trbasic zinc phosphate system Composite Anticorrosive Pigment Using using stick pin type nanon ball-mill |
| CN107699033B (en) * | 2017-09-14 | 2019-11-12 | 浙江加州国际纳米技术研究院台州分院 | A kind of preparation method of Organic-inorganic composite nanometer zinc phosphate system rust resisting pigment |
| CN107652737B (en) * | 2017-10-14 | 2020-02-18 | 华东理工大学 | Strontium phosphate-based nano-assembled spherical anticorrosive pigment |
| CN107760064A (en) * | 2017-10-25 | 2018-03-06 | 湖南众普化工新材料科技有限公司 | A kind of coating decoration one step in-situ synthesis of calcium orthophosphate base composite anti-corrosive pigment |
| CN108530967A (en) * | 2018-03-06 | 2018-09-14 | 华东理工大学 | A kind of graphene oxide/trbasic zinc phosphate composite anti-corrosive pigment |
| CN108395755A (en) * | 2018-04-09 | 2018-08-14 | 华东理工大学 | A kind of Antistatic type organic/inorganic composite anti-corrosive pigment |
| CN109836872A (en) * | 2019-03-10 | 2019-06-04 | 华东理工大学 | A kind of nano combined anti-corrosion paint of amorphous stabilisation |
| CN111334089A (en) * | 2020-01-08 | 2020-06-26 | 杨学棒 | Weathering ceramic paint pigment containing meteorite mineral and using method thereof |
| CN115678314B (en) * | 2022-09-27 | 2024-03-08 | 南昌航空大学 | Preparation method of organic-inorganic composite phosphate |
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| CN104195563A (en) * | 2014-09-03 | 2014-12-10 | 贾高锋 | Special corrosion-resistant agent for gas pump |
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