CN102634265B - Ship heavy-duty anti-corrosive coating with double anti-corrosive functions and preparation method thereof - Google Patents
Ship heavy-duty anti-corrosive coating with double anti-corrosive functions and preparation method thereof Download PDFInfo
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- CN102634265B CN102634265B CN2012101252744A CN201210125274A CN102634265B CN 102634265 B CN102634265 B CN 102634265B CN 2012101252744 A CN2012101252744 A CN 2012101252744A CN 201210125274 A CN201210125274 A CN 201210125274A CN 102634265 B CN102634265 B CN 102634265B
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Abstract
The invention provides a ship heavy-duty anti-corrosive coating with double anti-corrosive functions and a preparation method thereof and relates to one anti-corrosive coating. The ship heavy-duty anti-corrosive coating is composed of a component A and a component B, wherein the component A is composed of the following components in a mass ratio: 15-20 of zinc powder, 10-15 of mica powder, 10-15 of talcum powder, 0-3 of pigment, 40-50 of epoxy resin, 0-5 of modified resin, 0.5-1.0 of dispersant, 0.5-1.0 of de-foaming agent, 0.5-1.0 of flattening agent, 0.5-1.0 of film-forming auxiliary agent and 30-40 of solvent A; and the component B is composed of 10-15 of polyaniline and montmorillonoid composite conductive material, 15-20 of quartz powder, 15-20 of curing agent and 20-30 of solvent B. The preparation method comprises the following steps of: preparing the polyaniline and montmorillonoid composite conductive material; and then preparing the ship heavy-duty anti-corrosive coating with the double anti-corrosive functions.
Description
Technical field
The present invention relates to a kind of anticorrosive coating, especially relate to a kind of coating with two corrosion proof functions take polyaniline and montmorillonite intercalation mixture and zinc powder as main component and preparation method thereof.
Background technology
After metal is corroded, in profile, color and luster and mechanical properties, all will occur deterioratedly, cause damage of facilities, pipe leakage, product contamination, cause the waste of resource and the energy, even lead to the serious accidents such as burning or blast.Therefore, the protection against corrosion of iron and steel research causes people's concern day by day.In various anticorrosion techniques, anticorrosion with coat erosion technology is most widely used general, because its easy construction, wide adaptability, be not subjected to the constraint of device area, shape, recoat and reparation aspect expense are low, and the anticorrosion with coat erosion also can be combined use with other anticorrosive measure.In addition, in marine ship industry, prevent that sea marine organism pollution and marine corrosion from being a larger difficult problem always.Traditional antifouling anticorrosive coating utilizes the toxicants such as Red copper oxide or tin class suppress adhering to of marine life and grow, but these toxicants have caused severe contamination to seawater.Therefore, find the direction that novel antifouling anticorrosive coating nontoxic, high Corrosion Protection has become people's research.
Conventional coatings is due to the restriction that is subjected to self material character and technique, corrosion prevention effect to matrix metal is not satisfactory, and quite a few coating is arranged because of harmful toxic matters such as leaded or chromic salt, in preparation and use procedure, have the danger of contaminate environment, requiring of this and Sustainable Socioeconomic Development strategy is incompatible.The comparatively general anticorrosive coating of application is mostly the epoxy zinc-rich paint at present, but in the prior art, based on the dry film metallic zinc content of epoxy zinc rich primer more than 80%, the sticking power of coating, impact-resistant mechanical property can reduce along with the raising of zinc content, salt spray resistance also can decrease, and at the construction process floating coat, easily by outside destroy, is affected the Corrosion Protection of coating like this.The zinc content of tradition epoxy zinc-rich paint is higher, and not only Financial cost is higher, and the zinc oxide fog that produces when welding is larger.The anticorrosion ability of low zinc type epoxy zinc-rich paint is not satisfactory again.
The solution that develops rapidly to this problem of conductive polymers has brought new favourable turn.In many conductive polymerss, polyaniline is because raw material is cheap and easy to get, prepares simple and conveniently, and excellent chemical property and good chemical stability, and do not have problem of environmental pollution in preparation and use procedure, paid close attention to widely.Yet, because polyaniline is insoluble not molten, limited its widespread use technically.Existing polyaniline anticorrosion paint mainly contains following two kinds: (1) electrochemical techniques form polyaniline coating, but this method is not suitable for the anti-corrosive treatment of site operation and large-scale metal parts, is not suitable for industrialization production yet.(2) polyaniline and film-forming resin blend commonly used are prepared into to composite coating, the method has overcome the deficiency of electrochemical polymerization, be at present main research field, but the addition of required polyaniline is higher, and economic benefit has much room for improvement.
Polynite is comprised of the thick silicate lamella of about 1nm, and lamella is comprised of silicon-oxy tetrahedron and alumina octahedral, and interlayer is remained balance by Liquidity limit.Polynite has the characteristics such as nanometer size effect, surface-interface effect, quantum size effect, macro quanta tunnel effect.Inorganic laminated thing or ultrapureization, ultra-fine inorganic particulate and the compound conductive polymers based nano composite material that obtains of conductive polymers.Polynite is a kind of inertia main body that does not have oxidizing property, thereby monomer can be inserted between the stratiform lamella or space of polynite, it is peeled off and become nanoscale twins, thereby be evenly dispersed in polymeric matrix, material molecule must be walked around these lamellas when passing through material, path is increased greatly, and adds doping agent can improve the electron distributions situation of polymer chain, thereby improved conductivity, the solvability of polymkeric substance, realized the high-corrosion resistance of matrix material.
At present, existing many investigators are studied with Polyaniline and the Corrosion Protection that conducts electricity thereof epoxy zinc-enriched paint and polynite.As the Fu Xiao equality [development of the polyaniline hybridized metal heavy-duty aqueous coating of epoxy zinc-rich [J] sufacing, 2009,38 (2)] by solution polymerization process, different polyaniline products and epoxy zinc-rich hydridization have been made to the water-borne coatings that metal heavy-duty uses.Through the heavy anticorrosion dissolving formulation paint with internationally famous, carry out comparison and detection, the excellent antiseptic property of this aqueous heavy anti-corrosion paint has obtained confirmation.CN 101955716A[is based on rich zinc steel structure anti-corrosion primer of epoxy resin and preparation method thereof] the rich zinc anticorrosion of steel structure of the epoxy group(ing) priming paint of a kind of pair of component is disclosed, zinc content is more than 80%.The preparation method of CN101265361A[acid doping conducting polyaniline/organic clay nano composite material] preparation method of a kind of polyaniline with thionamic acid doping/nano imvite combination socket layer material is disclosed, can be used for functional filler.CN101928499A[utilizes polyaniline/attapulgite clay composite particle to prepare method and the application of anticorrosive protective paint] disclose with situ aggregation method at recessed native surface aggregate polyaniline; synthesized polyaniline/attapulgite composite material; and take vinylformic acid/methyl methacrylate/butyl acrylate terpolymer as the film forming matrix; prepare anticorrosive coating, have good homogeneity, adhesivity and coating processes performance.Polyaniline composite material and the preparation method of CN1381530A[take clay mineral as carrier] a kind of electrically conductive polyaniline with protonic acid doping disclosed, through in-situ polymerization, be coated on the clay mineral surface, this matrix material has the easily disperse of clay material, electroconductibility and the antiseptic property of polyaniline.
Summary of the invention
Purpose of the present invention aims to provide a kind of Heavy-Duty Marine Paints with two corrosion proof functions and preparation method thereof.
Technical scheme of the present invention is take polyaniline and montmorillonite Composite electro-conductive material and zinc powder as anticorrosive agent.
Described Heavy-Duty Marine Paints with two corrosion proof functions is comprised of component A and component B, and in mass ratio, each component is as follows:
Component A: zinc powder 15～20, mica powder 10～15, talcum powder 10～15, pigment 0～3, epoxy resin 40～50, modified resin 0～5, dispersion agent 0.5～1.0, defoamer 0.5～1.0, flow agent 0.5～1.0, film coalescence aid 0.5～1.0, solvent orange 2 A 30～40;
Component B: polyaniline and montmorillonite Composite electro-conductive material 10～15, silica powder 15～20, solidifying agent 15～20, solvent B20～30.
The particle diameter fineness of described zinc powder, mica powder, talcum powder, silica powder all can be 800～1000 orders.
Described pigment can be selected from a kind of in titanium dioxide, carbon black, red iron oxide, ultramarine, Lemon chrome yellow etc.
Described epoxy resin can be selected from a kind of in E20, E35, E40, E42, E44, E51 etc.
Described modified resin can be selected from a kind of in urea-formaldehyde resin, melamine resin, acrylic resin, resol etc.
Described dispersion agent is optional from solvent-borne type dispersion agent or wetting dispersing agent, a kind of in the Efka5044 that BYK101, BYK161, BYK163 or the EFKA company that produces as German Bi Ke company produces.
Optional a kind of in organic silicon defoamer, inorganic silicon defoamer, antifoaming agent of non-silicone etc. of described defoamer, a kind of in the Efka2018 that BYK302, BYK065, BYK20, BYK011, BYK053 or the EFKA company that produces as German Bi Ke company produces.
Described flow agent can be selected from a kind of in BYK306, BYK310 that ethylene glycol monobutyl ether, polydimethylsiloxane or German Bi Ke company produce, BYK356, BYK390.
Described film coalescence aid can be selected from a kind of in butyl Bian alcohol acetic ester, butyl glycol ether carboxylic ester, ethylene glycol phenyl ether, dibasic acid dimethyl ester, propylene glycol propyl ether, diprotic acid diethyl ester class etc.
Described polyaniline and montmorillonite Composite electro-conductive material are the polyaniline composite conducting material synthetic with the polynite through the cetyl trimethylammonium bromide activation modification.
Optional a kind of in polymeric amide 300, polyamide 6 50, polyamide 6 51, Ka Delai solidifying agent 2028MA etc. of described solidifying agent.
Described solvent orange 2 A and solvent B all can be selected from a kind of in dimethylbenzene, propyl carbinol, methyl iso-butyl ketone (MIBK), vinyl acetic monomer, N-BUTYL ACETATE etc.
Described preparation method with Heavy-Duty Marine Paints of two corrosion proof functions comprises the following steps:
1) preparation of polyaniline and montmorillonite Composite electro-conductive material
(1) polynite of 50 parts is added in the dopant acid solution of 1mol/L of 500 parts and disperses, under 40～60 ℃, through the speed of stirrer with 600～1000r/min, stir, form suspension system, add 5～10 parts of cetyl trimethylammonium bromides (CTAB) to form emulsion suspension system, continue to stir 4～6h, in stirring, the aniline monomers of 8～10 parts are joined to suspension and carry out the in-situ inserted reaction of aniline, continue to stir 4～6h and make intercalation abundant;
(2) under 0～20 ℃ of condition, will be dissolved in 40～60 parts of dopant acids with the oxygenant of aniline monomer with molar weight, slowly be added dropwise in described aniline emulsion, under nitrogen protection, reaction 6～8h;
(3) reaction is first carried out ultrasonic dispersion after finishing in water, then carries out centrifugation, and it is neutral that the precipitate with deionized water of gained, acetone repetitive scrubbing to filtrate are, and the gained precipitation is dry, through grinding, obtains polyaniline and montmorillonite Composite conducting material powder;
2) has the preparation of the Heavy-Duty Marine Paints of two corrosion proof functions
(1) get 15～20 parts of zinc powders, 10～15 parts of mica powders, 10～15 parts of talcum powder, 0～3 part of pigment, 40～50 parts of epoxy resin, 0～5 part of modified resin, 0.5～1.0 part of dispersion agent, 0.5～1.0 part of defoamer, 0.5～1.0 part of flow agent, 0.5～1.0 part of film coalescence aid, 30～40 parts of solvent, dispersed 1～4h on dispersion machine, filter to obtain the A component;
(2) get 10～15 parts of polyanilines and montmorillonite Composite conducting material powder, 15～20 parts of silica powders, 15～20 parts of solidifying agent, 20～30 parts of solvent, dispersed 1～4h on dispersion machine, filter to obtain the B component;
(3) by A, B component by weight A: B=16.5: 3.5 are mixed, and namely make the Heavy-Duty Marine Paints with two corrosion proof functions.
Described dopant acid is hydrochloric acid, sulfuric acid, sulphosalicylic acid (C
7H
6O
6S
2H
2O), Witco 1298 Soft Acid or phthalic acid.
Described oxygenant is ammonium persulphate ((NH
4)
2S
2O
8), Potassium Persulphate (K
2S
2O
8), iron trichloride (FeCl
3) or ferric sulfate (Fe
2(SO
4)
3).
At first the present invention utilizes the polynite of cetyl trimethylammonium bromide (CTAB) organic active, then adopt situ aggregation method that aniline monomer is introduced to the polynite interbed, the polyaniline chain segments that initiated polymerization forms is interspersed in the polynite interbed, synthetic composite conducting material can effectively solve the shortcomings such as polyaniline indissoluble solution, difficult dispersion, lack of homogeneity, coating processes be poor, then usings that this prepares two protective systems together as filler and zinc powder.Prepared protective system possesses two kinds of protection against corrosion mechanism: the polyaniline in (1) polyaniline and montmorillonite Composite conduction has " passivation " function to metallic surface, improves the corrosion of metal current potential, reaches etch-proof effect; (2) chemical activity of zinc powder is higher than iron, can protect iron not oxidized.The present invention combines polyaniline anticorrosion component and zinc powder, plays dual collaborative corrosion-resisting function, and Corrosion Protection obviously strengthens.And can significantly reduce the consumption of zinc powder, prepare simple and easy easy construction, can be applicable to the antiseptic project of petrochemical equipment, pipeline, terminal facilities and boats and ships etc.
The accompanying drawing explanation
Fig. 1 receives base montmorillonite, the polynite that organises through CTAB, polyaniline prepared by the present invention and the XRD diffractogram of montmorillonite Composite electro-conductive material.In Fig. 1, X-coordinate be diffraction angle 2 θ (°), ordinate zou is the intensity (a.u.) at peak; Curve a is for receiving base montmorillonite, and curve b is the polynite that CTAB organises, and curve c is polyaniline and montmorillonite Composite electro-conductive material prepared by the present invention.
Fig. 2 is that the magnification of the polyaniline for preparing of the present invention and montmorillonite Composite electro-conductive material is the SEM figure of 30000 times.In Fig. 2, scale is 200nm.
Fig. 3 is that the magnification of the polyaniline for preparing of the present invention and montmorillonite Composite electro-conductive material is the SEM figure of 40000 times.In Fig. 3, scale is 300nm.
Fig. 4 is that the magnification of the polyaniline for preparing of the present invention and montmorillonite Composite electro-conductive material is 120000 TEM figure.In Fig. 4, scale is 50nm.
Fig. 5 is that the magnification of the polyaniline for preparing of the present invention and montmorillonite Composite electro-conductive material is the TEM figure of 200000 times.In Fig. 5, scale is 20nm.
Fig. 6 is that the Heavy-Duty Marine Paints with two corrosion proof functions of embodiment 1 preparation soaks the simple and easy design sketch of resistance to salt water of 20 days after cut in 3.5%NaCl solution.
Fig. 7 is that the Heavy-Duty Marine Paints with two corrosion proof functions of embodiment 1 preparation soaks the simple and easy design sketch of resistance to salt water of 60 days after cut in 3.5%NaCl solution.
Embodiment
The invention will be further described below by embodiment.
Embodiment 1
Step 1, the 50g polynite is added in the hydrochloric acid soln of 500mL1mol/L, under 60 ℃, through the speed of stirrer with 800r/min, stir, form suspension system, add 8g cetyl trimethylammonium bromide (CTAB) to form suspension emulsion, continue to stir 4h; The 10g aniline monomer is dissolved in the hydrochloric acid soln of 10mL1mol/L, slowly is added drop-wise in the suspension emulsion of stirring, continue to stir 4h.
Step 2, under condition of ice bath, by 24.6g ammonium persulphate ((NH
4)
2S
2O
8) be dissolved in the hydrochloric acid soln of 40mL1mol/L, slowly be added dropwise in the aniline suspension emulsion, under nitrogen protection, reaction 8h.After reaction finishes, first in water, carry out ultrasonic dispersion, then carry out centrifugation 1h, the precipitate with deionized water of gained, industrial acetone repetitive scrubbing, until filtrate is neutral.Gained is deposited in to 60 ℃ of lower vacuum-drying 24h, through grinding, obtains polyaniline and montmorillonite Composite conducting material powder.
Step 3, get the 20g zinc powder, 10g mica powder, 15g talcum powder, 35gE44 epoxy resin, 15g E20 epoxy resin, 2g resol, 0.50g Efka5044,0.5g Efka2018,0.6g BYK390,0.6g butyl Bian alcohol acetic ester, 10mL dehydrated alcohol, 21mL dimethylbenzene, 6mL propyl carbinol mix, dispersed 2h on the high speed ball-milling dispersion machine, obtain the A component.
Step 4, get the 10g polyaniline and mix with montmorillonite Composite conducting material powder, 20g silica powder, 15g polyamide 6 50,7mL dehydrated alcohol, 12mL dimethylbenzene, 5mL propyl carbinol, uniform stirring disperses 2h in the high speed ball-milling dispersion machine, obtains blackish green B component.
Step 5, A, B component are mixed to obtain to heavy-duty coating in the ratio of 16.5: 3.5, during use, look construction and need to add appropriate solvent or not need solvent, in 1～2h, apply evenly, at room temperature solidified 24 hours anticorrosion coat.
the polyaniline that step 2 is obtained and montmorillonite Composite electro-conductive material and other montmorillonite materials carry out the XRD diffraction analysis, (Fig. 1 curve a) from the base montmorillonite of receiving of Fig. 1, the polynite (Fig. 1 curve b) that organises through CTAB, the XRD diffractogram of polyaniline and montmorillonite Composite electro-conductive material (Fig. 1 curve c) can be found out, along with polynite by organic modification, diffraction peak progressively moves to the low angle direction, by Debye-Scherrer formula Dhkl=k λ/β cos θ, calculate as can be known, the sheet interlayer spacing of polynite is respectively a=1.54nm, b=2.24nm, c=3.15nm, the laminated structure of polynite is peeled off gradually, the lamella width increases.
From the SEM figure (Fig. 2, Fig. 3) of polyaniline and montmorillonite Composite electro-conductive material, can see clearly that montmorillonite layer and intercalation are in polyaniline nano-line wherein.From the TEM figure (Fig. 4, Fig. 5) of polyaniline and montmorillonite composite, can clearly see the laminated structure that is stripped from.
The prepared Heavy-Duty Marine Paints with two corrosion proof functions is carried out to the resistance to salt water test, result (Fig. 6, Fig. 7) can find out coating after soaking 20,60 days only the cut place get rusty, and rusty scale does not spread, and shows that coating has excellent Corrosion Protection.
The performances such as the sticking power of prepared heavy-duty coating, impact resistance, protection against corrosion are tested, the results are shown in Table 1.
Embodiment 2
Step 1, the 50g polynite is added in the sulphuric acid soln of 500mL1mol/L, under 60 ℃, through the speed of stirrer with 1000r/min, stirs, form suspension system.Add 8g cetyl trimethylammonium bromide (CTAB) to form suspension emulsion, continue to stir 4h; The 12g aniline monomer is dissolved in the sulphuric acid soln of 15mL1mol/L, slowly is added drop-wise in the suspension emulsion of stirring, continue to stir 4h.
Step 2, under condition of ice bath, by 29.5g ammonium persulphate ((NH
4)
2S
2O
8) be dissolved in the sulfuric acid of 50mL1mol/L, slowly be added dropwise in the aniline suspension emulsion, under nitrogen protection, reaction 10h.After reaction finishes, first in water, carry out ultrasonic dispersion, then carry out centrifugation, the precipitate with deionized water of gained, industrial acetone repetitive scrubbing, until filtrate is neutral.Gained is deposited in to 60 ℃ of lower vacuum-drying 24h, through grinding, obtains polyaniline and montmorillonite Composite conducting material powder.
Step 3, get 20g zinc powder, 12g mica powder, 18g talcum powder, 30g epoxy resin E40,20g epoxy resin E44,4.0g urea-formaldehyde resin, 0.6g BYK20,0.6g BYK101,0.8g BYK356,0.8g ethylene glycol phenyl ether, 21mL dimethylbenzene, 8mL propyl carbinol, 10mL methyl iso-butyl ketone (MIBK), dispersed 2h on the high speed ball-milling dispersion machine, obtain the A component.
Step 4, get 12g polyaniline and montmorillonite Composite conducting material powder, 20g silica powder, 16g polyamide 6 50 solidifying agent, 15mL dimethylbenzene, 4mL propyl carbinol, 5mL methyl iso-butyl ketone (MIBK), uniform stirring disperses 2h in ball-milling dispersion machine, obtains blackish green B component.
Step 5, A, B component are mixed to obtain to heavy-duty coating in the ratio of 16.5: 3.5, during use, look construction and need to add appropriate solvent or not need solvent, in 1～2h, apply evenly, at room temperature solidified 24 hours anticorrosion coat.
The performances such as the sticking power of prepared heavy-duty coating, impact resistance, protection against corrosion are tested, the results are shown in Table 1.
Embodiment 3
Step 1, the 50g polynite is added in the sulphosalicylic acid solution of 500mL1mol/L, the speed through stirrer 800r/min under 50 ℃ stirs, and forms suspension system.8g cetyl trimethylammonium bromide (CTAB) is joined in suspension, stir into suspension emulsion; The 12g aniline monomer is dissolved in 15mL sulphosalicylic acid solution and slowly is added drop-wise in suspension emulsion, and 4h is stirred on dropping limit, limit.
Step 2, at room temperature, by 29.5g ammonium persulphate ((NH
4)
2S
2O
8) be dissolved in the sulphosalicylic acid solution of 40mL1mol/L, slowly be added dropwise in the aniline suspension emulsion, under nitrogen protection, reaction 6h.After reaction finishes, first in water, carry out ultrasonic dispersion, then carry out centrifugation, the precipitate with deionized water of gained, industrial acetone repetitive scrubbing, until filtrate is neutral.Gained is deposited in to 60 ℃ of lower vacuum-drying 24h, through grinding, obtains polyaniline and montmorillonite Composite conducting material powder.
Step 3, get 20g zinc powder, 12g mica powder, 18g talcum powder, 45g epoxy resin E42,4.0g melamine resin, 0.6gBYK011,0.6gEfka5044,0.7g ethylene glycol monobutyl ether, 0.7g butyl glycol ether carboxylic ester, 20mL vinyl acetic monomer, 10mL dimethylbenzene, 5mL propyl carbinol, dispersed 2h on the high speed ball-milling dispersion machine, obtain the A component.
Step 4, get 10g polyaniline and montmorillonite Composite conducting material powder, 15g silica powder, 18g polyamide 6 51 solidifying agent, 20mL vinyl acetic monomer, 10mL propyl carbinol, uniform stirring disperses 2h in ball-milling dispersion machine, obtains blackish green B component.
Step 5, A, B component are mixed to obtain to heavy-duty coating in the ratio of 16.5: 3.5, during use, look construction and need to add appropriate solvent or not need solvent, in 1～2h, apply evenly, at room temperature solidified 24 hours anticorrosion coat.
The performances such as the sticking power of prepared heavy-duty coating, impact resistance, protection against corrosion are tested, the results are shown in Table 1.
Embodiment 4
Get conventional epoxy zinc-rich paint and be coated on set iron, then the performances such as the sticking power of coating, impact resistance, protection against corrosion are tested, and compare with embodiment 1, the results are shown in Table 1.
Table 1
By test result, can be obtained, aspect antiseptic property (salt fog resistance, resistance to salt water), heavy-duty coating prepared by the present invention is better than conventional epoxy zinc-rich paint, has excellent anticorrosion ability.
Claims (10)
1. the Heavy-Duty Marine Paints with two corrosion proof functions, is characterized in that being comprised of component A and component B, and in mass ratio, the mass ratio of described component A and B component is 16.5: 3.5; Each component is as follows:
Component A: zinc powder 15～20, mica powder 10～15, talcum powder 10～15, pigment 0～3, epoxy resin 40～50, modified resin 0～5, dispersion agent 0.5～1.0, defoamer 0.5～1.0, flow agent 0.5～1.0, film coalescence aid 0.5～1.0, solvent orange 2 A 30～40; Described modified resin is selected from a kind of in urea-formaldehyde resin, melamine resin, acrylic resin, resol;
Component B: polyaniline and montmorillonite Composite electro-conductive material 10～15, silica powder 15～20, solidifying agent 15～20, solvent B20～30;
Described solvent orange 2 A and solvent B all are selected from a kind of in dimethylbenzene, propyl carbinol, methyl iso-butyl ketone (MIBK), vinyl acetic monomer, N-BUTYL ACETATE.
2. a kind of Heavy-Duty Marine Paints with two corrosion proof functions as claimed in claim 1, is characterized in that the particle diameter fineness of described zinc powder, mica powder, talcum powder, silica powder is 800～1000 orders.
3. a kind of Heavy-Duty Marine Paints with two corrosion proof functions as claimed in claim 1, is characterized in that described pigment is selected from a kind of in titanium dioxide, carbon black, red iron oxide, ultramarine, Lemon chrome yellow; Described epoxy resin is selected from a kind of in E20, E35, E40, E42, E44, E51.
4. a kind of Heavy-Duty Marine Paints with two corrosion proof functions as claimed in claim 1, is characterized in that described dispersion agent is selected from solvent-borne type dispersion agent or wetting dispersing agent; Described defoamer is selected from a kind of in silicone based defoamer, inorganic silicon defoamer.
5. a kind of Heavy-Duty Marine Paints with two corrosion proof functions as claimed in claim 1, is characterized in that a kind of in BYK306, BYK310 that described flow agent is selected from ethylene glycol monobutyl ether, polydimethylsiloxane or German Bi Ke company and produces, BYK356, BYK390.
6. a kind of Heavy-Duty Marine Paints with two corrosion proof functions as claimed in claim 1, is characterized in that described film coalescence aid is selected from a kind of in butyl Bian alcohol acetic ester, ethylene glycol phenyl ether, dibasic acid dimethyl ester, propylene glycol propyl ether, diprotic acid diethyl ester class.
7. a kind of Heavy-Duty Marine Paints with two corrosion proof functions as claimed in claim 1, is characterized in that described polyaniline and montmorillonite Composite electro-conductive material are the polyaniline composite conducting material synthetic with the polynite through the cetyl trimethylammonium bromide activation modification.
8. a kind of Heavy-Duty Marine Paints with two corrosion proof functions as claimed in claim 1, is characterized in that described solidifying agent is selected from a kind of in kymene 00, polyamide 6 50, polyamide 6 51, Ka Delai solidifying agent 2028MA.
9. as described in as a kind of arbitrarily as claim 1～8, have the preparation method of the Heavy-Duty Marine Paints of two corrosion proof functions, it is characterized in that comprising the following steps:
1) preparation of polyaniline and montmorillonite Composite electro-conductive material
(1) polynite of 50 parts is added in the dopant acid solution of 1mol/L of 500 parts and disperses, under 40～60 ℃, through the speed of stirrer with 600～1000r/min, stir, form suspension system, add 5～10 parts of cetyl trimethylammonium bromides (CTAB) to form emulsion suspension system, continue to stir 4～6h, in stirring, the aniline monomers of 8～10 parts are joined to suspension and carry out the in-situ inserted reaction of aniline, continue to stir 4～6h and make intercalation abundant;
(2) under 0～20 ℃ of condition, will be dissolved in 40～60 parts of dopant acids with the oxygenant of aniline monomer with molar weight, slowly be added dropwise in described aniline emulsion, under nitrogen protection, reaction 6～8h;
(3) reaction is first carried out ultrasonic dispersion after finishing in water, then carries out centrifugation, and it is neutral that the precipitate with deionized water of gained, acetone repetitive scrubbing to filtrate are, and the gained precipitation is dry, through grinding, obtains polyaniline and montmorillonite Composite conducting material powder;
2) has the preparation of the Heavy-Duty Marine Paints of two corrosion proof functions
(1) get 15～20 parts of zinc powders, 10～15 parts of mica powders, 10～15 parts of talcum powder, 0～3 part of pigment, 40～50 parts of epoxy resin, 0～5 part of modified resin, 0.5～1.0 part of dispersion agent, 0.5～1.0 part of defoamer, 0.5～1.0 part of flow agent, 0.5～1.0 part of film coalescence aid, 30～40 parts of solvent, dispersed 1～4h on dispersion machine, filter to obtain the A component;
(2) get 10～15 parts of polyanilines and montmorillonite Composite conducting material powder, 15～20 parts of silica powders, 15～20 parts of solidifying agent, 20～30 parts of solvent, dispersed 1～4h on dispersion machine, filter to obtain the B component;
(3) A, B component are mixed by weight A:B=16.5:3.5, namely make the Heavy-Duty Marine Paints with two corrosion proof functions.
10. the preparation method with Heavy-Duty Marine Paints of two corrosion proof functions as claimed in claim 9, it is characterized in that in step 1) (1) part, described dopant acid is hydrochloric acid, sulfuric acid, sulphosalicylic acid, Witco 1298 Soft Acid or phthalic acid; In step 1) (2) part, described oxygenant is a kind of in ammonium persulphate, Potassium Persulphate, iron trichloride, ferric sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101252744A CN102634265B (en) | 2012-04-25 | 2012-04-25 | Ship heavy-duty anti-corrosive coating with double anti-corrosive functions and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101252744A CN102634265B (en) | 2012-04-25 | 2012-04-25 | Ship heavy-duty anti-corrosive coating with double anti-corrosive functions and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN102634265A CN102634265A (en) | 2012-08-15 |
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