CN103756514B - Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint and preparation method thereof - Google Patents
Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, described Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint forms as follows by weight percentage: tap water 8～20%, aqueous epoxy emulsion 30～45%, aqueous epoxy curing agent 7～15%, rust resisting pigment 8～20%, Chinese white 1～7%, white filler 1～7%, light-colored conductive filler 8～18%, anti-settling agent 0.1～0.3%, wetting dispersing agent A 0.1～0.4%, wetting dispersing agent B 0.1～0.3%, coalescents 0.8～2%, defoamer 0.2～0.6%, levelling agent 0.1～0.3%, anti-sudden strain of a muscle rust agent 0.1～0.6%, thickening agent 0.5～2%.By the chemical crosslink reaction of two components, the present invention, with bi-component aqueous epoxy resin and waterborne curing agent as main film forming substance, ensure that coating has higher crosslink density and barrier propterty.
Description
Technical field
The present invention relates to a kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint and preparation method thereof, belong to static electricity conductive anticorrosive paint technical field.
Background technology
In order to ensure the safe handling of oil tank, in consideration oil tank while anti-corrosion protection, also needing suppress the generation of electrostatic charge and promote the leakage of electric charge, get rid of the accumulation of electrostatic charge, therefore inner wall of oil tank should use static electricity conductive anticorrosive paint.According to GB GB50393-2008 " steel petroleum storage tank anticorrosion engineering technical specification ", in tank, electrostatic conductive anticorrosion paint surface resistivity should be at 108～1011In the range of Ω.And had in terms of petrochemical industry based on the solvent-borne type static conductive coating of charcoal series and be widely applied.Charcoal system conductive filler electric conductivity is good, but white carbon black is easily by absorption, and volatilization along with solvent is stored in paint film.White carbon black and steel also exist potential difference, easily cause galvanic corrosion at steel plate, and carbon filler can be exuded in oil product affect oil quality.Therefore, charcoal system static conductive coating there is adhesive force and oil resistivity is poor, and the problem such as color is ugly.And use metal or burning system conductive filler can prepare multiple compound-type conducting coating, but its cost intensive so that it is popularization and application are subject to certain restrictions.Additionally, solvent based coating product is inflammable and explosive, the enterprise construction application processes such as petrochemical industry exists bigger potential safety hazard, and pollutes environment, workmen's health is produced harm.
Summary of the invention
The deficiency that the present invention exists to overcome prior art, it is provided that a kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint and preparation method thereof.
The present invention can be achieved by taking techniques below scheme:
A kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, described Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint forms as follows by weight percentage: tap water 8～20%, aqueous epoxy emulsion 30～45%, aqueous epoxy curing agent 7～15%, rust resisting pigment 8～20%, Chinese white 1～7%, white filler 1～7%, light-colored conductive filler 8～18%, anti-settling agent 0.1～0.3%, wetting dispersing agent A 0.1～0.4%, wetting dispersing agent B 0.1～0.3%, coalescents 0.8～2%, defoamer 0.2～0.6%, levelling agent 0.1～0.3%, anti-sudden strain of a muscle rust agent 0.1～0.6%, thickening agent 0.5～2%.
In inventive formulation, main film forming substance is aqueous epoxy emulsion and supporting aqueous epoxy curing agent thereof, this aqueous epoxy emulsion is a kind of water-dispersible bisphenol A type epoxy resin, there is good emulsion stability, well toughness, stronger cohesive force, oil resistant, acidproof, resistance to various organic solvent, the coating of preparation has good adhesive force, durability, the water-dispersible bisphenol A type epoxy resin of the one (720A) developed such as Wei Gang Chemical Co., Ltd. and supporting modified amine type aqueous epoxy curing agent (720B) thereof, the coating made is acidproof, alkaline-resisting, salt water resistance, oil resistant, resistance to various organic solvent properties are excellent, and film adhesive excellent performance；The one that Dongguan Heng Xin Chemical Co., Ltd. develops is by aqueous epoxy emulsion (K-051) obtained by low-molecular-weight bisphenol A epoxide resin modification and supporting a kind of low viscosity alicyclic amine type epoxy curing agent (KHG-312) thereof, its coating prepared has longer working life, and the coating made is acidproof, alkaline-resisting, water-fast, salt water resistance, oil resistant, resistance to various organic solvent properties are excellent.
Light-colored conductive filler of the present invention is with flaky mica powder as carrier, the composite conductive powder of one or more layers tin-antiomony oxide conducting objects is wrapped up on its surface, compound-type conducting powder YJ-600, the YJ-1250 produced such as Guangzhou Yi Jie construction material company limited, mica particles slabbing, specific surface area is big, being conducive to the dispersion in resin and contact with each other, its specific insulation can reach 40 Ω cm.To determine that it conducts electricity permanent for the characteristic of conductor oxidate tin-antiomony oxide simultaneously, paint film shows through long-term soak test, coating is at 5% sulphuric acid, 5% sodium hydroxide, oil product (diesel oil, gasoline, kerosene), xylene solvent, boiling water, saline, unchanged under the conditions of salt fog etc., show good corrosion resistance；It is that white mica (being divided into filler level and pearly-lustre level) is the conductive powder of substrate in a wet process that Beijing spy protects the conductive mica powder ECP-M that conductive powder material centre of development produces, powder body is flakey, thickness is less than 0.25 μm, there is the good transparency, consumption is few, and conduction, anti-static effect are good, shares with color pigment and can improve gloss and not affect its color, with other pigment with the use of, then can be made into the permanent conductive material of the shades of colours such as near-white；Junjiang Science and Technology Co Ltd, Shanghai produce conductive mica powder BC-C, BC-B40 be with light weight, lamellar ultrafine mica powder as base material, the conductive materials of the tin-antiomony oxide that its surface is wrapped by multilamellar stable chemical performance, decay resistance is strong, electrical conductivity is high.This product belongs to universal product inside anti-static coatings, superfine, of light color, good conductivity, and addition is few, and has certain help to antiseptic property.
Thickening agent of the present invention is non-ionic hydrophobic modified polyurethane block copolymer, contain hydrophilic group and hydrophobic group on its strand simultaneously, can simultaneously aqueous phase thickening and with polymer emulsion associative thickening, can compound with non-ionic hydrophobic modified polyurethane block copolymer, as: Optiflo the H 400 and Optiflo H 600 of South Chemical Company, the DSX 3116 and DSX of Shenzhen Hai Chuan Chemical Co., Ltd.
3290, the ET-605 etc. of UN-643 and UN-641 of Beijing Futesi Chemical Technology Co., Ltd., Wei Gang Chemical Co., Ltd., its effect is to confer to the good levelability of system and sag resistance, so that coating has good storge quality and workability.
Wetting dispersing agent A of the present invention is block macromolecular copolymer, polyvalent carboxylic acid's salt base polymer, one or more mixtures of synthesising macromolecule copolymer, and its effect is rust resisting pigment and light-colored conductive filler is uniformly dispersed so that it is be stable in the presence of in system.Wherein, block macromolecular copolymer, such as: the Hydropalat 3275 of Shenzhen Hai Chuan Chemical Co., Ltd., Hydropalat 1080, the Germany Disperbyk180 of BYK chemical company, Disperbyk181, Disperbyk184, Disperbyk190, Disperbyk191, Solsperse12000, Solsperse20000, Solsperse27000 etc. of Avecia company of Britain；Polyvalent carboxylic acid's salt base polymer, such as: the SN-5027 of Shenzhen Hai Chuan Chemical Co., Ltd., SN-5034, SN-5040, the Orotan 731A of Rhom and Hass of the U.S.；Synthesis macromolecule base polymer, such as: the Hydropalat 3204 of Shenzhen Hai Chuan Chemical Co., Ltd., Hydropalat 759, Hydropalat 100, the DP512 of Taiwan De Qian company, DP518, Orotan 1124, the Orotan1288 etc. of Rhom and Hass of the U.S..
Wetting dispersing agent B of the present invention is anionic wetting agents, non-ionic wetting agent or both mixtures, its effect is the surface tension of reduction system, strengthen the coating moistening to base material, improve adhesive force, improve the levelability of system simultaneously, eliminate the out-of-flatness phenomenon of film, contribute to the oriented alignment of metallic luster pigment.Wherein, anionic wetting agents includes: dialkyl group (octyl group, base, butyl) sulfosuccinate, Negel, Oleum Ricini hydrosulphate, dodecyl sodium sulfate, sulphuric acid laurel tallow, oleic acid butyl ester hydrosulphate etc., Hydropalat 875 such as Shenzhen Hai Chuan Chemical Co., Ltd., Nopcowet50 etc., or non-ionic wetting agent, including: alkylphenol polyoxyethylene, alkyl alcohol ethoxylates, the polyxyethylated ester of ethylene glycol, ethylene glycol polyoxyethylene alkylaryl ether, acetylene ethylene glycol etc., X-405 such as Rhom and Hass of the U.S., the PE-100 of Shenzhen Hai Chuan Chemical Co., Ltd., Hydropalat 436 etc..
Rust resisting pigment of the present invention is with polyphosphoric acid titanium or polyphosphoric acid ferrum as carrier, the composite iron-titanium powder of one or more in compound silica-based, titanio, iron-based oxide and yttrium oxide nano-powder；Described rust resisting pigment is one or more combinations in the rust resisting pigments such as I-H-Z-III-c-type rust resisting pigment, aluminium triphosphate, zinc phosphate, flaky mica powder.Rust resisting pigment is composite iron-titanium powder, the composite iron-titanium powder (WD-D-500) produced such as Wuxi Wanda Science and Technology Ltd. is with polyphosphoric acid titanium or polyphosphoric acid ferrum as carrier, the compound nano-powder such as a certain amount of silica-based, titanio, iron-based oxide and yittrium oxide is made, its main component is the phosphate (without aluminum, zinc) that several form is different, (carrying out the pretreatment of necessity) after objectionable impurities in removing this side-product simultaneously and make it a kind of water-free polyphosphoric acid double salt, itself has certain antirust ability (salt water resistance 3～4 days).Then, several nano-powder materials of compound introducing so that it is antirust ability is greatly improved；I-H-Z-III-c-type rust resisting pigment that Kweiyang Ke Xinyinghua factory produces is to use the materials such as calcium salt, magnesium salt, zinc oxide, titanium oxide, titanium polymers to react through sequence of chemical, filter, dry, pulverize, through chemical surface treatment, calcine at a certain temperature and pulverize again and obtain；The aluminum tripolyphosphate anti-rust pigment that Guangxi Chemical Inst. develops；The rust resisting pigment of the zinc phosphate series that Hong Kong Jing Hui chemical company sells, is respectively provided with preferable rustless property；Flaky mica powder GA-5 of Chuzhou Grea Minerals Co., Ltd.'s production, GA-2 etc., as physical barrier type rust resisting pigment, have preferable rust-proof effect.
Chinese white of the present invention is anatase titanium dioxide or Rutile type titanium dioxide.Chinese white is anatase titanium dioxide or Rutile type titanium dioxide, the anatase thpe white powder BA-0101 produced such as Guangxi Xing Meixiang titanium dioxide company limited, for white powder, water insoluble, physiological-toxicity-free, stable chemical performance, the Rutile type titanium dioxide (SR-237) produced such as Shandong Dongjia Group Co., Ltd., surface is through silicon, there is after aluminum peplos and organic process the pigment performance of brilliance, whiteness, brightness, good luster, covering power, reducing power and mobility are strong, good dispersion, there is splendid weatherability and anti-grinded hardness index, can be with the color of adjusting coating in static electricity conductive anticorrosive paint in being used in light color aqueous tank, it is applied to finish paint；Also having the R-706 of du pont company, the TR-92 of Hensel Man of Malaysia is, and the product such as CR-828 of Ke Mei fine jade company.
White filler of the present invention is blanc fixe or Pulvis Talci.White filler is blanc fixe or Pulvis Talci, there is cheap cost and good chemical mediator-resitant property, contribute to optimizing coating combination property in coating, promote its cost performance, as wide Fujian material refine company limited produce blanc fixe BS-125, BS-115 etc., being mainly composed of barium sulfate, have the performances such as excellent acidproof, alkaline-resisting, fast light, heat-resisting, anticorrosion, fusing point is up to 1500 DEG C, water insoluble, oil absorption is low, and fillibility is good, good leveling property；The Pulvis Talci YF-1250 that Shunde District of Foshan City Yu Feng powder body material factory produces, it is mainly composed of silicon dioxide and magnesium oxide, there is preferable acid-alkali-corrosive-resisting performance, and water-tolerant, it is also equipped with steam the most wear-resisting, resistance to and chemical stability, and stronger fire resistance simultaneously.
Of the present invention anti-dodge one or more in ammonium carbonate, sodium benzoate, sodium nitrite, sodium silicate, sodium phosphate, the triethanolamine of rust agent.Anti-dodge rust agent be a kind of can stop metal Initial Corrosion, prevent metal surface occur dodge rust functional aid, anti-sudden strain of a muscle rust agent (raybo60-NoRust) produced such as Rui Bao auxiliary agent company of the U.S., its gas phase anticorrosive with ammonium carbonate as main component and the complex of contact anticorrosive, be a kind of multipurpose, efficient anti-sudden strain of a muscle rust agent.Therefore, raybo60 can become rusty in spendable latex system on metal in anti-wink, and it also can provide anti-corrosion protection to the canned food of lining；The anti-sudden strain of a muscle rust agent (SER-AD that Yongfeng, Zhongshan city Chemical Co., Ltd. sells
FA179), with sodium benzoate as main component, being to dodge corrosion inhibitor for the effective liquid of water paint, it is prevented from dodging erosion and getting rusty in early days.Further, as the long-acting sudden strain of a muscle corrosion inhibitor in a kind of coating, its performance is splendid.SER-AD
The strong affinity of FA 179 molecule and ferrum ground produces the instant effect of corrosion inhibition, SER-AD after guaranteeing coating application at once
FA 179 can effectively suppress the sudden strain of a muscle rust phenomenon that the water paint on irony ground occurs in dry run, and the metal complex formed in coating drying process can cause SER-AD
The water miscible reduction of FA 179.Under general condition, most SER-AD FA 179 can be transformed into water-insoluble complex after the drying, and the full thing of this network still keeps the activity that long-acting sudden strain of a muscle corrosion inhibitor possesses.Additionally, unlike dodging rust inhibitor from Inorganic water-soluble, this water-insoluble complex does not interferes with the water sensitivity of dry coating film；The aqueous dissolubility neutral mediums such as the sodium nitrite of domestic technical grade, sodium silicate, sodium phosphate, triethanolamine are anti-dodges rust agent etc..
Anti-settling agent of the present invention is for covering torr soil, gas phase SiO2In one or more.Anti-settling agent is the montmorillonite (such as: the Bentone EW of these company's development and production of U.S.'s hamming) of selected processing, its role is to prevent rust resisting pigment and the sedimentation of light-colored conductive filler in coating, improve levelability and the sag resistance of system, improve storage characteristics and the application property of coating；Gas phase SiO2, the anti-settling agent (A200) produced such as Degussa company of Germany is a kind of ultra-fine aerosil, and this type of anti-settling agent belongs to colloid grain, and specific surface area is at 150-380m2/ g, there is siloxy on surface, is added by this silicon dioxide in paint, through being sufficiently stirred between dispersion, siloxy being formed hydrogen bond, produces space network, increases the viscosity of dispersion, thus reach anti-settling effect；Gas phase SiO of Wa Ke company of Germany2(N-20), for hydrophilic SiO2, there is thickening, thixotroping, anti-settling, anti-caking, fluidizer move, help dispersion, keep the characteristics such as powdery paints electrostatic stability.
Other auxiliary agents of the present invention such as coalescents, levelling agent, defoamer etc., be auxiliary agent conventional during water paint produces.
The preparation method of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint of the present invention, comprises the following steps:
1) under 100～400r/min rotating speed stirring conditions, add 6～the tap water of 10%, wetting dispersing agent A 0.1～0.4%, wetting dispersing agent B 0.1～0.3%, defoamer A 0.1～0.3%, coalescents 0.4～1% to stirring container successively according to the gross mass percentage ratio of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, stir 5min；Under 600-800 r/min rotating speed stirs, add anti-settling agent 0.1～0.3%, rust resisting pigment 8～20%, Chinese white 1～7%, white filler 1～7%, then under rotating speed is 4500～5000 r/min, high speed dispersion 30min, until fineness arrives below 55 μm, under 100～400r/min rotating speed stirring conditions, add defoamer B 0.1～0.3%, stirring froth breaking 5min, i.e. prepares graining paste；
2) under 400～600r/min rotating speed stirring conditions, above-mentioned graining paste is joined in aqueous epoxy emulsion 30～45%, add light-colored conductive filler 8～18%, 30min is disperseed under 900～1000 r/min rotating speed stirrings, make light-colored conductive filler the most fully dispersed, then reduce rotating speed to 300～500
Under the stirring of r/min rotating speed, add coalescents 0.4～1%, levelling agent 0.1～0.3%, anti-dodge rust agent 0.1～0.6%, thickening agent 0.5～2%, stir, prepared main paint component A；
3) by aqueous epoxy curing agent 7～15% with tap water 2～10% mixing and stirring, prepare firming agent B component；
4) by main paint component A and firming agent B component mix homogeneously, ripening 30 minutes is placed,SystemObtain Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint.
The Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint mixing of the present invention and milling apparatus are the common equipments in dope preparing process, including high speed dispersor, sand mill, ball mill and ball mill etc..
The construction technology of the Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint of the present invention is as follows: owing to the service life of canister depends greatly on Anticorrosion Construction quality, particularly coating and the bonding force of matrix, closely related with the surface treatment quality of container.In derusting, coating layer thickness and execution conditions factors, derusting is maximum on the impact of whole coating quality and pipeline, container service life.It is generally acknowledged that surface treatment quality accounts for the 50% of whole influence factor, coating layer thickness accounts for 19%, and coating type accounts for 5%, and construction environment accounts for 26%.Long term production proves, the service life of poor or without processing of rust removing the coating of the ratio derusting that derusting is good is long 3～5 times.Before construction, preferably construction surface being carried out derusting by sandblasting, derusting grade reaches GB/T
The Sa2.5 level of 8923 regulations.Then by airless spraying, Air spraying or brushing, reservoir walls will be coated on by static electricity conductive anticorrosive paint in the light aqueous tank of preparation, and control thickness well.
Compared with prior art, the invention has the beneficial effects as follows:
1) product of gained of the present invention belongs to a kind of brand-new full environment-friendly type Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, with bi-component aqueous epoxy resin and waterborne curing agent as main film forming substance, ensure that coating has higher crosslink density and barrier propterty by the chemical crosslink reaction of two components, collocation light-colored conductive filler, makes the coating prepared have the electrostatic conductive performance of excellence and splendid Corrosion Protection concurrently.The coating color of gained of the present invention is shallow and is difficult to contaminated product, and current potential is near or below the current potential of ferrum cathodic protection effect, and light-colored conductive filler is flakey, can improve the impervious antiseptic property of coating.The advantage that Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint prepared by the present invention has tone light, electrostatic conductive performance is good and electrostatic conductive performance is stable, and environmental protection, health, do not fire, construction safety coefficient is high.
2) light-colored conductive filler is dispersed in aqueous coating system by the present invention simply and effectively, owing to light-colored conductive filler is the composite obtained for carrier at its Surface coating one layer or which floor stable chemical performance, corrosion resistance is strong, electrical conductivity is high conductive materials with conductive mica powder, this light-colored conductive filler light specific gravity, d=3.6g/cm3.This i.e. reduces the required mass percent added of unit volume, decrease again the filler sedimentation tendency at organic media, in resin binder, it is more easy to dispersion simultaneously, and mica particles slabbing, specific surface area is big, being conducive to the dispersion in resin and contact with each other, its specific insulation can reach 40 Ω cm.To determine that it conducts electricity permanent for the characteristic of conductor oxidate simultaneously, paint film shows through long-term soak test, and coating is at 5% sulphuric acid, 5% sodium hydroxide, oil product (diesel oil, gasoline, kerosene), xylene solvent, hot water, saline, unchanged under the conditions of salt fog etc., show good corrosion resistance.
3) construction of the product of gained of the present invention is simple and convenient, can directly use water as diluent, at processed inner wall of oil tank surface direct spraying.
4) technological process of production of the product of gained of the present invention is basically identical with the technological process of production of conventional Oil Tank internal solvent type static electricity conductive anticorrosive paint, and capital equipment used and raw material all can commercially be commercially available, it is easy to accomplish large-scale production.
Detailed description of the invention
Below in conjunction with embodiment, the preferred forms of the present invention is described in detail.
Embodiment 1
A kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, its component and mass percent are as follows: tap water 13.2%, aqueous epoxy emulsion 41%, aqueous epoxy curing agent 11%, light-colored conductive filler 16.8%, composite iron-titanium powder 8%, Rutile type titanium dioxide 4%, Pulvis Talci 3%, anti-settling agent 0.2%, wetting dispersing agent A0.2%, wetting dispersing agent B0.3%, coalescents 1%, anti-sudden strain of a muscle rust agent 0.1%, thickening agent 0.5%, defoamer A0.2%, defoamer B0.2%, levelling agent 0.3%.Its preparation method is as follows:
1) under 400r/min rotating speed stirring condition, 7.5% tap water, 0.2% wetting dispersing agent A, 0.3% wetting dispersing agent B, 0.5% coalescents is added to stirring container successively according to the gross mass percentage ratio of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, 0.2% defoamer A, stirs 5min；Under 600 r/min rotating speed stirrings, add 0.2% anti-settling agent, 8% composite iron-titanium powder, 4% Rutile type titanium dioxide, 3% Pulvis Talci, then under rotating speed is 5000 r/min, high speed dispersion 30min, until fineness arrives below 55 μm；Under 100r/min rotating speed stirring condition, add 0.2% defoamer B, stir froth breaking 5min, i.e. prepare graining paste；
2) under 600r/min rotating speed stirring condition, above-mentioned graining paste is joined in 41% aqueous epoxy emulsion, add 16.8% light-colored conductive filler, 30min is disperseed under 1000 r/min rotating speed stirrings, make light-colored conductive filler the most fully dispersed, under then reduction rotating speed stirs to 300r/min rotating speed, add 0.5% coalescents, 0.3% levelling agent, 0.1% anti-sudden strain of a muscle rust agent, 0.5% thickening agent, stir, prepare main paint component A；
3) by 11% aqueous epoxy curing agent and 5.7% tap water mixing and stirring, firming agent B component is prepared；
4) by main paint component A and firming agent B component mix homogeneously, place ripening 30 minutes, prepare Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint.
Embodiment 2
A kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, its component and mass percent are as follows: tap water 20%, aqueous epoxy emulsion 30%, aqueous epoxy curing agent 7%, light-colored conductive filler 18%, composite iron-titanium powder 12.4%, Rutile type titanium dioxide 1%, blanc fixe 7%, anti-settling agent 0.2%, wetting dispersing agent A0.3%, wetting dispersing agent B0.2%, coalescents 1.5%, anti-sudden strain of a muscle rust agent 0.4%, thickening agent 1.2%, defoamer A0.3%, defoamer B0.3%, levelling agent 0.2%.Its preparation method is as follows:
1) under 100r/min rotating speed stirring condition, add 10.3% tap water, 0.3% wetting dispersing agent A, 0.2% wetting dispersing agent B, 0.3% defoamer A, 0.75% coalescents to stirring container successively according to the gross mass percentage ratio of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, stir 5min；Under 800r/min rotating speed stirs, add 0.2% anti-settling agent, 12.4% rust resisting pigment, 1% titanium dioxide, 7% blanc fixe, then under rotating speed is 4500 r/min, high speed dispersion 30min, until fineness arrives below 55 μm, under 400r/min rotating speed stirring condition, add 0.3% defoamer B, stirring froth breaking 5min, i.e. prepares graining paste；
2) under 400r/min rotating speed stirring condition, above-mentioned graining paste is joined in 30% aqueous epoxy emulsion, add 18% light-colored conductive filler, 30min is disperseed under 900r/min rotating speed stirs, make light-colored conductive filler the most fully dispersed, under then reduction rotating speed stirs to 500 r/min rotating speeds, add 0.75% coalescents, 0.2% levelling agent, 0.4% anti-sudden strain of a muscle rust agent, 1.2% thickening agent, stir, prepare main paint component A；
3) by 7% aqueous epoxy curing agent and 9.7% tap water mixing and stirring, firming agent B component is prepared；
4) by main paint component A and firming agent B component mix homogeneously, place ripening 30 minutes, prepare Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint.
Embodiment 3
A kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, its component and mass percent are as follows: tap water 17%, aqueous epoxy emulsion 38%, aqueous epoxy curing agent 10%, light-colored conductive filler 9%, flaky mica powder 15%, Rutile type titanium dioxide 1.5%, blanc fixe 6%, anti-settling agent 0.1%, wetting dispersing agent A0.3%, wetting dispersing agent B0.2%, coalescents 1%, anti-sudden strain of a muscle rust agent 0.6%, thickening agent 1%, defoamer A0.1%, defoamer B0.1%, levelling agent 0.1%.Its preparation method is as follows:
1) under 300r/min rotating speed stirring condition, add 10.3% tap water, 0.3% wetting dispersing agent A, 0.2% wetting dispersing agent B, 0.1% defoamer A, 0.5% coalescents to stirring container successively according to the gross mass percentage ratio of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, stir 5min；Under 700 r/min rotating speed stirrings, add 0.1% anti-settling agent, 15% rust resisting pigment, 1.5% titanium dioxide, 6% blanc fixe, then under rotating speed is 4800r/min, high speed dispersion 30min, until fineness arrives below 55 μm, under 300r/min rotating speed stirring condition, add 0.1% defoamer B, stirring froth breaking 5min, i.e. prepares graining paste；
2) under 500r/min rotating speed stirring condition, above-mentioned graining paste is joined in 38% aqueous epoxy emulsion, add 9% light-colored conductive filler, 30min is disperseed under 950 r/min rotating speed stirrings, make light-colored conductive filler the most fully dispersed, under then reduction rotating speed stirs to 400r/min rotating speed, add 0.5% coalescents, 0.1% levelling agent, 0.6% anti-sudden strain of a muscle rust agent, 1% thickening agent, stir, prepare main paint component A；
3) by 10% aqueous epoxy curing agent and 6.7% tap water mixing and stirring, firming agent B component is prepared；
4) by main paint component A and firming agent B component mix homogeneously, place ripening 30 minutes, prepare Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint.
Embodiment 4
A kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, its component and mass percent are as follows: tap water 15%, aqueous epoxy emulsion 35%, aqueous epoxy curing agent 9%, light-colored conductive filler 15%, composite iron-titanium powder 20%, Rutile type titanium dioxide 1.2%, blanc fixe 1%, anti-settling agent 0.1%, wetting dispersing agent A0.1%, wetting dispersing agent B0.1%, coalescents 0.8%, anti-sudden strain of a muscle rust agent 0.6%, thickening agent 1.5%, defoamer A0.2%, defoamer B0.2%, levelling agent 0.2%.Its preparation method is as follows
1) under 300r/min rotating speed stirring condition, add 7.3% tap water, 0.1% wetting dispersing agent A, 0.1% wetting dispersing agent B, 0.2% defoamer A, 0.4% coalescents to stirring container successively according to the gross mass percentage ratio of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, stir 5min；Under 700 r/min rotating speed stirrings, add 0.1% anti-settling agent, 20% rust resisting pigment, 1.2% titanium dioxide, 1% blanc fixe, then under rotating speed is 4800r/min, high speed dispersion 30min, until fineness arrives below 55 μm, under 300r/min rotating speed stirring condition, add 0.2% defoamer B, stirring froth breaking 5min, i.e. prepares graining paste；
2) under 500r/min rotating speed stirring condition, above-mentioned graining paste is joined in 35% aqueous epoxy emulsion, add 15% light-colored conductive filler, 30min is disperseed under 950 r/min rotating speed stirrings, make light-colored conductive filler the most fully dispersed, under then reduction rotating speed stirs to 400r/min rotating speed, add 0.4% coalescents, 0.2% levelling agent, 0.6% anti-sudden strain of a muscle rust agent, 1.5% thickening agent, stir, prepare main paint component A；
3) by 9% aqueous epoxy curing agent and 7.7% tap water mixing and stirring, firming agent B component is prepared；
4) by main paint component A and firming agent B component mix homogeneously, place ripening 30 minutes, prepare Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint.
Embodiment 5
A kind of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, its component and mass percent are as follows: tap water 8%, aqueous epoxy emulsion 45%, aqueous epoxy curing agent 15%, light-colored conductive filler 8%, rust resisting pigment 9.5%, Rutile type titanium dioxide 7%, Pulvis Talci 2%, anti-settling agent 0.3%, wetting dispersing agent A0.4%, wetting dispersing agent B0.1%, coalescents 2%, anti-sudden strain of a muscle rust agent 0.3%, thickening agent 2%, defoamer A0.1%, defoamer B0.1%, levelling agent 0.2%.Its preparation method is as follows:
1) under 300r/min rotating speed stirring condition, add 6.3% tap water, 0.4% wetting dispersing agent A, 0.1% wetting dispersing agent B, 0.1% defoamer A, 1% coalescents to stirring container successively according to the gross mass percentage ratio of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, stir 5min；Under 700 r/min rotating speed stirrings, add 0.3% anti-settling agent, 9.5% rust resisting pigment, 7% titanium dioxide, 2% Pulvis Talci, then under rotating speed is 4800r/min, high speed dispersion 30min, until fineness arrives below 55um, under 300r/min rotating speed stirring condition, add 0.1% defoamer B, stirring froth breaking 5min, i.e. prepares graining paste；
2) under 500r/min rotating speed stirring condition, above-mentioned graining paste is joined in 45% aqueous epoxy emulsion, add 8% light-colored conductive filler, 30min is disperseed under 950 r/min rotating speed stirrings, make light-colored conductive filler the most fully dispersed, under then reduction rotating speed stirs to 400r/min rotating speed, add 1% coalescents, 0.2% levelling agent, 0.3% anti-sudden strain of a muscle rust agent, 2% thickening agent, stir, prepare main paint component A；
3) by 15% aqueous epoxy curing agent and 1.7% tap water mixing and stirring, firming agent B component is prepared；
4) by main paint component A and firming agent B component mix homogeneously, place ripening 30 minutes, prepare Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint.
The performance of the Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint of the various embodiments described above is as shown in table 1, and the surface resistivity of obtained Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint is 108-1010Between Ω, it is in the 10 of national regulations8～1011In the range of Ω, and there is resistance to salt water, acid resistance, alkali resistance, hot water resistance, fuel resistance and the solvent resistance of excellence, embody Corrosion Protection and the protective capacities of excellence, the film color simultaneously prepared is light gray, adjuvant used it is aqueous, for this relatively conventional charcoal series solvent type static conductive coating, there is again good dicoration and the feature of environmental protection.The application requirement at Oil Tank inwall protective coating has been completely arrived at by static electricity conductive anticorrosive paint performance in the light aqueous tank prepared by this patent formula and technique.
Table 1
Only as described above, it is only the preferred embodiments of the invention, certainly the scope of present invention enforcement can not be limited with this, the most generally according to equivalence change simple done by the content described in the claims in the present invention and description of the invention and modification, all it is still covered by the claims of the invention.Additionally, summary part and title are intended merely to assist patent document search to be used, not it is used for limiting the interest field of the present invention.
Claims (9)
- null1. a Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint，It is characterized in that，Described Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint forms as follows by weight percentage: tap water 8～20%、Aqueous epoxy emulsion 30～45%、Aqueous epoxy curing agent 7～15%、Rust resisting pigment 8～20%、Chinese white 1～7%、White filler 1～7%、Light-colored conductive filler 8～18%、Anti-settling agent 0.1～0.3%、Wetting dispersing agent A 0.1～0.4%、Wetting dispersing agent B 0.1～0.3%、Coalescents 0.8～2%、Defoamer 0.2～0.6%、Levelling agent 0.1～0.3%、Anti-sudden strain of a muscle rust agent 0.1～0.6%、Thickening agent 0.5～2%，Described light-colored conductive filler is with flaky mica powder as carrier，The composite conductive powder of one or more layers tin-antiomony oxide conducting objects is wrapped up on its surface，Described thickening agent is non-ionic hydrophobic modified polyurethane block copolymer，Described wetting dispersing agent A is block macromolecular copolymer、Polyvalent carboxylic acid's salt base polymer、One or more mixtures of synthesising macromolecule copolymer，Described wetting dispersing agent B is anionic wetting agents、Non-ionic wetting agent or both mixtures.
- Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint the most according to claim 1, it is characterised in that described aqueous epoxy emulsion is the aqueous dispersion of bisphenol A type epoxy resin, described aqueous epoxy curing agent is amine aqueous epoxy curing agent.
- Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint the most according to claim 1, it is characterized in that, described rust resisting pigment is with polyphosphoric acid titanium or polyphosphoric acid ferrum as carrier, the composite iron-titanium powder of one or more in compound silica-based, titanio, iron-based oxide and yttrium oxide nano-powder.
- Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint the most according to claim 1, it is characterised in that described rust resisting pigment is one or more combinations in I-H-Z-III-c-type rust resisting pigment, aluminium triphosphate, zinc phosphate, flaky mica powder rust resisting pigment.
- Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint the most according to claim 1, it is characterised in that described Chinese white is anatase titanium dioxide or Rutile type titanium dioxide.
- Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint the most according to claim 1, it is characterised in that described white filler is blanc fixe or Pulvis Talci.
- Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint the most according to claim 1, it is characterised in that described anti-dodge one or more in ammonium carbonate, sodium benzoate, sodium nitrite, sodium silicate, sodium phosphate, the triethanolamine of rust agent.
- Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint the most according to claim 1, it is characterised in that described anti-settling agent is for covering torr soil, gas phase SiO2In one or more.
- 9. the preparation method of a Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint as claimed in claim 1, it is characterised in that comprise the following steps:1) under 100～400r/min rotating speed stirring conditions, add 6～the tap water of 10%, wetting dispersing agent A 0.1～0.4%, wetting dispersing agent B 0.1～0.3%, defoamer A 0.1～0.3%, coalescents 0.4～1% to stirring container successively according to the gross mass percentage ratio of Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, stir 5min；Under 600-800 r/min rotating speed stirs, add anti-settling agent 0.1～0.3%, rust resisting pigment 8～20%, Chinese white 1～7%, white filler 1～7%, then under rotating speed is 4500～5000 r/min, high speed dispersion 30min, until fineness arrives below 55 μm, under 100～400r/min rotating speed stirring conditions, add defoamer B 0.1～0.3%, stirring froth breaking 5min, i.e. prepares graining paste；2) under 400～600r/min rotating speed stirring conditions, above-mentioned graining paste is joined in aqueous epoxy emulsion 30～45%, add light-colored conductive filler 8～18%, 30min is disperseed under 900～1000 r/min rotating speed stirrings, make light-colored conductive filler the most fully dispersed, then under reduction rotating speed stirs to 300～500 r/min rotating speeds, add coalescents 0.4～1%, levelling agent 0.1～0.3%, anti-dodge rust agent 0.1～0.6%, thickening agent 0.5～2%, stir, prepare main paint component A；3) by aqueous epoxy curing agent 7～15% with tap water 2～10% mixing and stirring, prepare firming agent B component；4) by main paint component A and firming agent B component mix homogeneously, place ripening 30 minutes, obtain Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint.
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| CN102533061B (en) * | 2011-12-30 | 2014-08-13 | 洛阳双瑞防腐工程技术有限公司 | High-solid-content superhigh-corrosion-resistant water-based epoxy static conductive paint and preparation method thereof |
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