CN103275598A - Heavy-anticorrosive epoxy finishing coat and preparation method thereof - Google Patents
Heavy-anticorrosive epoxy finishing coat and preparation method thereof Download PDFInfo
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Abstract
The invention relates to heavy-anticorrosive epoxy finishing coat and a preparation method thereof. The heavy-anticorrosive epoxy finishing coat is a double-component system, wherein the component A comprises the following ingredients in parts by weight: 100 parts of hydrogenated bisphenol a expoxy resin, 10-30 parts of epoxy resin TDE 85, 5-20 parts of butyl titanate, 5-20 parts of fluorocarbon-containing silane coupling agent, 10-20 parts of an epoxy-containing silane coupling agent, 10-30 parts of other organic silicone precursor, 0.1-5 parts of a dispersing agent, 0.1-5 parts of a flatting agent, 0.1-5 parts of a defoaming agent, 0.1-2 parts of an accelerant and 50-150 parts of a solvent, and the component B is 30-20 parts by mass of an amine curing agent. The heavy-anticorrosive epoxy finishing coat mainly serves as outdoor heavy-anticorrosive finishing coat and has the advantages of excellent ultraviolet-resistance property, anti-yellowing property, good dispersion stability, excellent acid resistance, alkali resistance and salt-spray corrosion resistance, strong adhesive force, good wear-resisting property, self-cleaning property, room temperature curing, simple and convenient construction and the like.
Description
Technical field
The present invention relates to a kind of heavy anticorrosion epoxy finish and preparation method thereof, belong to protection epoxy-based lacquers technical field.
Background technology
The greatest problem that iron and steel faces in application process is how to carry out protection against corrosion, the problem that prolongs its work-ing life.Usually the method that adopts has: protective system, zinc-plated, nickel plating, chromium plating, surface passivation and grease are anticorrosion etc.Large-scale steel equipment adopts the mode of zinc-plated and protective system combination as bridge, electric transmission pole tower, steamer etc. are when dispatching from the factory; after using for some time; particularly under severe environment such as China desert, salt lake, severe contamination; the unavoidable damaged of protective layer; but inconvenience is carried out zinc-plated operation again; efficient manner is exactly to apply protective system again one time, and antisepsis finishing paint commonly used mainly contains urethane, silicone resin and fluorocarbon resin etc.
Silicone resin has weathering resistance, high-low temperature resistant, chemical resistance excellent characteristics, but only uses organic silicon coating, and its sticking power is relatively poor, and the also relatively poor crack performance that is easy to generate of toughness; Resins, epoxy has the surface bonding intensity height to metal and non-metallic material, and dielectric properties are good, and the distortion shrinking percentage is little; the hardness height, snappiness is better, to the stable characteristics of chemical solvents; with the silicone resin performance complement, can play the effect of fine and close protection to the metallic surface.Contain a large amount of phenyl ring in the bis-phenol a type Resins, epoxy commonly used, cause its weather resistance very poor, generally can not be used as the rot-resistant finish paint, and A Hydrogenated Bisphenol A a type Resins, epoxy has kept advantages such as strong adhesion, good toughness, the solvent resistance of bis-phenol a type Resins, epoxy are good, and overcome the problem of weathering resistance difference, be combined with silicone resin, form heavy rot-resistant finish paint.
Publication number CN102634266A discloses a kind of weather resistant double antiseptic powder coating, utilizes the anticorrosion powder shape coating of A Hydrogenated Bisphenol A a type Resins, epoxy, rich zinc filler, conducting polymer, weather-proof color, solidifying agent and the preparation of various auxiliary agent.
Publication number CN102352043A discloses a kind of coating epoxy-polysiloxane resin and preparation method thereof, utilize A Hydrogenated Bisphenol A a type Resins, epoxy and reactive polysiloxanes to allocate a kind of heavy-duty coating, its active function groups is hydroxyl, methoxyl group, oxyethyl group or isocyanate group, at first by active function groups and Resins, epoxy reaction, preparation consistency epoxy-polysiloxane resin, though above-mentioned coating combines the characteristics of Resins, epoxy and silicone resin performance complement, do not absorb ultraviolet ray or cover ultraviolet absorption agent but do not contain in the coating, the ageing resistance deficiency of coating, simultaneously, the surface does not have the strong-hydrophobicity group, can influence anti-permeability performance and the Corrosion Protection of coating.
Summary of the invention
The objective of the invention is, the problem according to existing antisepsis finishing paint exists the invention provides a kind of anticorrosion epoxy finish of weight that is applied to the outfield and preparation method thereof.
Realize that technical scheme of the present invention is, the present invention adopts the mode of in-situ preparing, at first prepare the fluorine-contained surface nano-titania particle, utilize the good uvioresistant of nano titanium oxide, antibiotic, from effect such as clean, anti-aging, mating surface fluorine-carbon modified strengthens the anti-aging and hydrophobic self-cleaning performance of coating; Link to each other with the silicone resin in-situ polymerization that contains epoxy group(ing) and fluorine carbon then, make TiO 2 particles be dispersed in the system uniformly, the adding enhancing of while epoxy group(ing) and the compatibility performance of Resins, epoxy, the adding of fluorocarbon group, further strengthen the hydrophobic performance of coating, reduce surface energy, strengthen its impermeabilisation, erosion-resisting performance.To prepare modified organic silicone resin at last mixes with the Resins, epoxy of A Hydrogenated Bisphenol A a type Resins, epoxy and trifunctional, give full play to the performance of nano titanium oxide, organosilicon, fluorocarbon radicals Resins, epoxy, improve uvioresistant, impermeabilisation, the aging-resistant performance of coating.
The present invention adopts the bicomponent epoxy resin curing system, and the heavy anticorrosion epoxy finish of the present invention by the prescription of mass parts is:
The A component comprises: 100 parts of A Hydrogenated Bisphenol A a Resins, epoxy; 10 ~ 30 parts of Resins, epoxy TDE85; 5 ~ 20 parts of butyl (tetra) titanates; 5 ~ 20 parts of fluorine-containing carbon silane coupling agents; Contain 10 ~ 20 parts of epoxy silane coupling agents; 10 ~ 30 parts of other organosilicon presomas; 0.1 ~ 5 part of dispersion agent; 0.1 ~ 5 part of flow agent; 0.1 ~ 5 part of defoamer; 0.1 ~ 2 part of promotor; 50 ~ 150 parts of solvents;
The B component comprises: 30 ~ 200 parts of amine curing agents; 20 ~ 200 parts of solvents;
The weight ratio of A component and B component is (1 ~ 9): 1;
The model of described A Hydrogenated Bisphenol A a Resins, epoxy is AL-3040;
Described fluorine containing silane coupling agent is: ten fluoroalkyl Trimethoxy silanes, ten trifluoro octyl group Trimethoxy silanes, ten trifluoroalkyl propyl trimethoxy silicanes, a kind of in the ten difluoro heptyl propyl group methyl dimethoxysilanes;
The described epoxy silane coupling that contains is γ-(2,3-glycidoxy) propyl trimethoxy silicane, 3-(3,4-epoxycyclohexyl) a kind of in the ethyl trimethoxy silane;
Described other organosilicon presoma is dimethyldimethoxysil,ne, aminomethyl phenyl dimethoxy silane, a kind of in the dimethoxydiphenylsilane;
Described dispersion agent is the polyurethane-type dispersion agent;
Described flow agent is the fluorine carbon flow agent;
Described defoamer is the polysiloxane defoamer;
Described promotor is a kind of among phenol, ortho-cresol, boron trifluoride mono aminoethane, the DMP-30;
Described solvent is one or more the mixed solvent in toluene, dimethylbenzene and propyl carbinol, Virahol, pimelinketone, the N-BUTYL ACETATE;
Described amine curing agent is diethylenetriamine, triethylene tetramine, a kind of in diamines, diethylaminopropylamine, polymeric amide (200,203,3051,600,650,651), the modified by cardanol amine.
The preparation process of a kind of heavy anticorrosion epoxy finish of the present invention is:
(1) butyl (tetra) titanate and 1 ~ 10 mass parts fluorine containing silane coupling agent with 5 ~ 20 mass parts is dissolved in 5 ~ 20 quality xylene solutions, be added drop-wise in the mixed solution of being formed by 1 ~ 5 part of Virahol, 5 ~ 10 parts of dimethylbenzene, 0.5 ~ 10 part of water, 0.1 ~ 5 part of nitric acid, the pH value of regulation system is reacted 4 ~ 8h down in 25 ~ 50 ℃ between 3 ~ 5;
(2) under the maintenance system acidic conditions, add the solvent of 1 ~ 10 part of water and 20 ~ 60 mass parts in proportion, other organosilicon presomas that contain fluorocarbon radicals and 10 ~ 30 mass parts that contain epoxy group(ing), 1 ~ 15 mass parts that drip 10 ~ 20 mass parts then in the reaction system prepare silicone resin solution; Continue to stir 4 ~ 8h; Add the anhydrous sodium sulphate after-filtration that dewaters, drip less ammonia, regulation system pH value is 7 ~ 8,25 ~ 50 ℃ and reacts 4 ~ 8h down; Drip a small amount of concentrated hydrochloric acid regulation system at last for neutral;
(3) in above-mentioned system, add the A Hydrogenated Bisphenol A a Resins, epoxy of 100 mass parts and the TDE85 Resins, epoxy of 10 ~ 30 mass parts in proportion, 0.1 the dispersion agent of ~ 5 mass parts, 0.1 the flow agent of ~ 5 mass parts, 0.1 the defoamer of ~ 5 mass parts, 0.1 the solvent of the promotor of ~ 2 mass parts and 20 ~ 120 mass parts, under 2000 ~ 3000r/min condition, stir 0.5 ~ 1h, get component A;
(4) with the solidifying agent of 30 ~ 200 mass parts and the solvent of 20 ~ 200 mass parts, stir, get component B.
(5) with component A and B component according to weight ratio (1 ~ 9): 1 mixes, stir and slaking 30min after, get final product application, use up in the time at 6 ~ 8h.
The key technical indexes that detects heavy anticorrosion epoxy finish comprises:
(1) consistency: leave standstill after 3 days visual not stratified.
(2) sticking power: according to GB 9286-1998 paint film adhesion method of testing test, frame spacing 1mm, sticking power≤1 grade.
(3) hardness: according to the test of DB6739-1996 hardness of paint film pencil assay method, hardness 〉=3h.
(4) impact strength: according to the test of GB 1732-1993 paint film flexibility assay method, impact strength 〉=50kg/cm
2
(5) snappiness: according to the test of GB1731-1993 paint film flexibility assay method, snappiness≤1mm.
(6) weathering resistance: behind the QUV/spray ultraviolet ageing proofing box accelerated deterioration 1000h, sticking power 〉=4Mpa.
(7) non-corrosibility: behind GB 1771-2007 salt-fog test 1000h, sticking power 〉=4Mpa.
The present invention's beneficial effect compared with the prior art is:
(1) at first prepare the fluorine-contained surface nano-titania particle among the present invention, utilize the good uvioresistant of nano titanium oxide, antibiotic, from effect such as clean, anti-aging, mating surface fluorine-carbon modified, the anti-aging and hydrophobic self-cleaning performance of enhancing coating;
(2) the present invention links to each other fluorine-carbon modified nano-titania particle with the silicone resin in-situ polymerization that contains epoxy group(ing) and fluorine carbon, make TiO 2 particles be dispersed in the system uniformly, the adding of epoxy group(ing) simultaneously strengthens the compatibility performance of organosilicon and Resins, epoxy, the adding of fluorocarbon group, further strengthen the hydrophobic performance of coating, reduce surface energy, strengthen its impermeabilisation, erosion-resisting performance;
(3) the present invention gives full play to the complementary performance of modified organic silicone resin and A Hydrogenated Bisphenol A a type Resins, epoxy, makes the coating of preparation have strong uvioresistant, impermeabilisation, aging-resistant performance, and a kind of anticorrosion epoxy finish of weight that is applied to the outfield is provided.
(4) the present invention adopts disposable in-situ reaction preparation method, has continuity of operation, and is simple to operate, and the antiseptic property excellence of coating reached the heavily performance of antisepsis finishing paint of fluorine carbon, and production cost declines to a great extent.
Description of drawings
Fig. 1 is nano-TiO
2Particle mixes and contains the silicone resin synoptic diagram of epoxy group(ing) and fluorine carbon.
Embodiment
Below in conjunction with further detailed illustrating of the present invention of embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
(1) butyl (tetra) titanate and 3 mass parts, the ten fluoroalkyl Trimethoxy silanes with 5 mass parts are dissolved in the 5 mass parts xylene solutions, be added drop-wise in the mixed solution of being formed by 2 mass parts Virahols, 5 mass parts dimethylbenzene, 0.5 mass parts water, 0.1 mass parts nitric acid, react 8h down in 25 ℃;
(2) under the maintenance system acidic conditions, add the solvent of 3 mass parts water and 40 mass parts, drip the γ-(2 by 10 mass parts then in the reaction system, the 3-glycidoxy) mixing solutions of the dimethyldimethoxysil,ne of ten fluoroalkyl Trimethoxy silanes of propyl trimethoxy silicane, 3 mass parts and 10 mass parts composition continues to stir 8h;
(3) anhydrous sodium sulphate that the adds 10 mass parts after-filtration that dewaters drips less ammonia, and regulation system pH value is 7 ~ 8,50 ℃ and reacts 8h down; Drip a small amount of concentrated hydrochloric acid regulation system at last for neutral;
(4) in above-mentioned system, add the A Hydrogenated Bisphenol A a Resins, epoxy AL-3040 of 100 mass parts and the TDE85 Resins, epoxy of 10 mass parts in proportion, 0.5 the dispersant B YK-163 of mass parts, 0.2 the flow agent EL-877 of mass parts, 0.5 the defoamer BYK-065 of mass parts, 0.5 the altax P-30 of mass parts and the dimethylbenzene of 60 mass parts, under the 2000r/min condition, stir 0.5h, get component A;
(5) polyamide 6 50 and 90 parts of dimethylbenzene, the 40 parts of propyl carbinols with 130 mass parts mix, and stir, and get component B;
(6) at last component A is mixed application behind the slaking 30min that stirs according to mass ratio 1:1 with B component.The forward and backward method that provides according to the key technical indexes that detects heavy anticorrosion epoxy finish is provided tests every performance.
The test performance of embodiment 1 is as follows:
| ? | Consistency | Sticking power | Hardness | Impact strength | Snappiness | Weathering resistance | Non-corrosibility |
| Embodiment 1 | Not stratified | 1 grade | 4h | >50 kg/cm 2 | 1mm | 6 Mpa | 5 Mpa |
Embodiment 2: change the reaction conditions of (5), (6), all the other are with embodiment 1.
(1) butyl (tetra) titanate and 3 mass parts, the ten fluoroalkyl Trimethoxy silanes with 5 mass parts are dissolved in the 5 mass parts xylene solutions, be added drop-wise in the mixed solution of being formed by 2 mass parts Virahols, 5 mass parts dimethylbenzene, 0.5 mass parts water, 0.1 mass parts nitric acid, react 8h down in 25 ℃;
(2) under the maintenance system acidic conditions, add the solvent of 3 mass parts water and 40 mass parts, drip the γ-(2 by 10 mass parts then in the reaction system, the 3-glycidoxy) mixing solutions of the dimethyldimethoxysil,ne of ten fluoroalkyl Trimethoxy silanes of propyl trimethoxy silicane, 3 mass parts and 10 mass parts composition continues to stir 8h;
(3) anhydrous sodium sulphate that the adds 10 mass parts after-filtration that dewaters drips less ammonia, and regulation system pH value is 7 ~ 8,50 ℃ and reacts 8h down; Drip a small amount of concentrated hydrochloric acid regulation system at last for neutral;
(4) in above-mentioned system, add the A Hydrogenated Bisphenol A a Resins, epoxy AL-3040 of 100 mass parts and the TDE85 Resins, epoxy of 10 mass parts in proportion, 0.5 the dispersant B YK-163 of mass parts, 0.2 the flow agent EL-877 of mass parts, 0.5 the defoamer BYK-065 of mass parts, 0.5 the altax P-30 of mass parts and the dimethylbenzene of 60 mass parts, under the 2000r/min condition, stir 0.5h, get component A;
(5) with hexanediamine and 30 parts of dimethylbenzene of 15 mass parts, stir, get component B;
(6) at last component A is mixed application behind the slaking 30min that stirs, test performance according to mass ratio 5:1 with B component.
Embodiment 3: change the reaction conditions of (1), all the other are with embodiment 1.
(1) butyl (tetra) titanate and 10 mass parts, the ten fluoroalkyl Trimethoxy silanes with 20 mass parts are dissolved in the 20 mass parts xylene solutions, be added drop-wise in the mixed solution of being formed by 5 mass parts Virahols, 10 mass parts dimethylbenzene, 2 mass parts water, 0.4 mass parts nitric acid, react 8h down in 25 ℃;
(2) under the maintenance system acidic conditions, add the solvent of 3 mass parts water and 40 mass parts, drip the γ-(2 by 10 mass parts then in the reaction system, the 3-glycidoxy) mixing solutions of the dimethyldimethoxysil,ne of ten fluoroalkyl Trimethoxy silanes of propyl trimethoxy silicane, 3 mass parts and 10 mass parts composition continues to stir 8h;
(3) anhydrous sodium sulphate that the adds 10 mass parts after-filtration that dewaters drips less ammonia, and regulation system pH value is 7 ~ 8,50 ℃ and reacts 8h down; Drip a small amount of concentrated hydrochloric acid regulation system at last for neutral;
(4) in above-mentioned system, add the A Hydrogenated Bisphenol A a Resins, epoxy AL-3040 of 100 mass parts and the TDE85 Resins, epoxy of 10 mass parts in proportion, 0.5 the dispersant B YK-163 of mass parts, 0.2 the flow agent EL-877 of mass parts, 0.5 the defoamer BYK-065 of mass parts, 0.5 the altax P-30 of mass parts and the dimethylbenzene of 60 mass parts, under the 2000r/min condition, stir 0.5h, get component A;
(5) polyamide 6 50 and 90 parts of dimethylbenzene, the 40 parts of propyl carbinols with 130 mass parts mix, and stir, and get component B;
(6) at last component A is mixed application behind the slaking 30min that stirs according to mass ratio 1:1 with B component.The forward and backward method that provides according to the key technical indexes that detects heavy anticorrosion epoxy finish is provided tests every performance.
Embodiment 4: change the reaction conditions of (2), all the other are with embodiment 1.
(1) butyl (tetra) titanate and 3 mass parts, the ten fluoroalkyl Trimethoxy silanes with 5 mass parts are dissolved in the 5 mass parts xylene solutions, be added drop-wise in the mixed solution of being formed by 2 mass parts Virahols, 5 mass parts dimethylbenzene, 0.5 mass parts water, 0.1 mass parts nitric acid, react 8h down in 25 ℃;
(2) under the maintenance system acidic conditions, add the solvent of 3 mass parts water and 40 mass parts, drip the 3-(3 by 10 mass parts then in the reaction system, the 4-epoxycyclohexyl) dimethoxydiphenylsilane of ten trifluoro octyl group Trimethoxy silanes of ethyl trimethoxy silane, 3 mass parts and 10 mass parts form mixing solutions, continue to stir 8h;
(3) anhydrous sodium sulphate that the adds 10 mass parts after-filtration that dewaters drips less ammonia, and regulation system pH value is 7 ~ 8,50 ℃ and reacts 8h down; Drip a small amount of concentrated hydrochloric acid regulation system at last for neutral;
(4) in above-mentioned system, add the A Hydrogenated Bisphenol A a Resins, epoxy AL-3040 of 100 mass parts and the TDE85 Resins, epoxy of 10 mass parts in proportion, 0.5 the dispersant B YK-163 of mass parts, 0.2 the flow agent EL-877 of mass parts, 0.5 the defoamer BYK-065 of mass parts, 0.5 the altax P-30 of mass parts and the dimethylbenzene of 60 mass parts, under the 2000r/min condition, stir 0.5h, get component A;
(5) polyamide 6 50 and 90 parts of dimethylbenzene, the 40 parts of propyl carbinols with 130 mass parts mix, and stir, and get component B;
(6) at last component A is mixed application behind the slaking 30min that stirs according to mass ratio 1:1 with B component.The forward and backward method that provides according to the key technical indexes that detects heavy anticorrosion epoxy finish is provided tests every performance.
Embodiment 5: change the reaction conditions of (4), all the other are with embodiment 1.
(1) butyl (tetra) titanate and 3 mass parts, the ten fluoroalkyl Trimethoxy silanes with 5 mass parts are dissolved in the 5 mass parts xylene solutions, be added drop-wise in the mixed solution of being formed by 2 mass parts Virahols, 5 mass parts dimethylbenzene, 0.5 mass parts water, 0.1 mass parts nitric acid, react 8h down in 25 ℃;
(2) under the maintenance system acidic conditions, add the solvent of 3 mass parts water and 40 mass parts, drip the γ-(2 by 10 mass parts then in the reaction system, the 3-glycidoxy) mixing solutions of the dimethyldimethoxysil,ne of ten fluoroalkyl Trimethoxy silanes of propyl trimethoxy silicane, 3 mass parts and 10 mass parts composition continues to stir 8h;
(3) anhydrous sodium sulphate that the adds 10 mass parts after-filtration that dewaters drips less ammonia, and regulation system pH value is 7 ~ 8,50 ℃ and reacts 8h down; Drip a small amount of concentrated hydrochloric acid regulation system at last for neutral;
(4) in above-mentioned system, add the A Hydrogenated Bisphenol A a Resins, epoxy AL-3040 of 100 mass parts and the TDE85 Resins, epoxy of 30 mass parts in proportion; The 5th) step changes into: polyamide 6 50 and 90 parts of dimethylbenzene, 40 parts of propyl carbinols of 170 mass parts are mixed, stir, get component B;
(5) polyamide 6 50 and 90 parts of dimethylbenzene, the 40 parts of propyl carbinols with 130 mass parts mix, and stir, and get component B;
(6) at last component A is mixed application behind the slaking 30min that stirs according to mass ratio 1:1 with B component.The forward and backward method that provides according to the key technical indexes that detects heavy anticorrosion epoxy finish is provided tests every performance.
Embodiment 6: change the reaction conditions of (3), all the other are with embodiment 1.
(1) butyl (tetra) titanate and 3 mass parts, the ten fluoroalkyl Trimethoxy silanes with 5 mass parts are dissolved in the 5 mass parts xylene solutions, be added drop-wise in the mixed solution of being formed by 2 mass parts Virahols, 5 mass parts dimethylbenzene, 0.5 mass parts water, 0.1 mass parts nitric acid, react 8h down in 25 ℃;
(2) under the maintenance system acidic conditions, add the solvent of 3 mass parts water and 40 mass parts, drip the γ-(2 by 10 mass parts then in the reaction system, the 3-glycidoxy) mixing solutions of the dimethyldimethoxysil,ne of ten fluoroalkyl Trimethoxy silanes of propyl trimethoxy silicane, 3 mass parts and 10 mass parts composition continues to stir 8h;
(3) drip less ammonia, regulation system pH value is 7 ~ 8,50 ℃ of reaction 8h down; Drip a small amount of concentrated hydrochloric acid regulation system at last for neutral;
(4) in above-mentioned system, add the A Hydrogenated Bisphenol A a Resins, epoxy AL-3040 of 100 mass parts and the TDE85 Resins, epoxy of 10 mass parts in proportion, 0.5 the dispersant B YK-163 of mass parts, 0.2 the flow agent EL-877 of mass parts, 0.5 the defoamer BYK-065 of mass parts, 0.5 the altax P-30 of mass parts and the dimethylbenzene of 60 mass parts, under the 2000r/min condition, stir 0.5h, get component A;
(5) polyamide 6 50 and 90 parts of dimethylbenzene, the 40 parts of propyl carbinols with 130 mass parts mix, and stir, and get component B;
(6) at last component A is mixed application behind the slaking 30min that stirs according to mass ratio 1:1 with B component.The forward and backward method that provides according to the key technical indexes that detects heavy anticorrosion epoxy finish is provided tests every performance.
The performance test of embodiment 2-6 is as follows:
| ? | Consistency | Sticking power | Hardness | Impact strength | Snappiness | Weathering resistance | Non-corrosibility |
| Embodiment 2 | Not stratified | 1 grade | 4h | >50 kg/cm 2 | 1mm | 6Mpa | 6Mpa |
| Embodiment 3 | Not stratified | 1 grade | 3h | >50 kg/cm 2 | 1mm | 7Mpa | 6Mpa |
| Embodiment 4 | Not stratified | 1 grade | 4h | >50 kg/cm 2 | 1mm | 7Mpa | 5Mpa |
| Embodiment 5 | Not stratified | 1 grade | 4h | >50 kg/cm 2 | 1mm | 5Mpa | 4Mpa |
| Embodiment 6 | Not stratified | 2 grades | 2h | 25 kg/cm 2 | 1mm | 3Mpa | 3Mpa |
Claims (2)
1. the anticorrosion epoxy finish of weight is characterized in that, described epoxy finish by the prescription of mass parts is:
The A component comprises: 100 parts of A Hydrogenated Bisphenol A a Resins, epoxy; 10 ~ 30 parts of Resins, epoxy TDE85; 5 ~ 20 parts of butyl (tetra) titanates; 5 ~ 20 parts of fluorine-containing carbon silane coupling agents; Contain 10 ~ 20 parts of epoxy silane coupling agents; 10 ~ 30 parts of other organosilicon presomas; 0.1 ~ 5 part of dispersion agent; 0.1 ~ 5 part of flow agent; 0.1 ~ 5 part of defoamer; 0.1 ~ 2 part of promotor; 50 ~ 150 parts of solvents;
The B component comprises: 30 ~ 200 parts of amine curing agents; 20 ~ 200 parts of solvents;
The weight ratio of A component and B component is (1 ~ 9): 1;
The model of described A Hydrogenated Bisphenol A a Resins, epoxy is AL-3040;
Described fluorine containing silane coupling agent is: ten fluoroalkyl Trimethoxy silanes, ten trifluoro octyl group Trimethoxy silanes, ten trifluoroalkyl propyl trimethoxy silicanes, a kind of in the ten difluoro heptyl propyl group methyl dimethoxysilanes;
The described epoxy silane coupling that contains is γ-(2,3-glycidoxy) propyl trimethoxy silicane, 3-(3,4-epoxycyclohexyl) a kind of in the ethyl trimethoxy silane;
Described other organosilicon presoma is dimethyldimethoxysil,ne, aminomethyl phenyl dimethoxy silane, a kind of in the dimethoxydiphenylsilane;
Described dispersion agent is the polyurethane-type dispersion agent;
Described flow agent is the fluorine carbon flow agent;
Described defoamer is the polysiloxane defoamer;
Described promotor is a kind of among phenol, ortho-cresol, boron trifluoride mono aminoethane, the DMP-30;
Described solvent is one or more the mixed solvent in toluene, dimethylbenzene and propyl carbinol, Virahol, pimelinketone, the N-BUTYL ACETATE;
Described amine curing agent is diethylenetriamine, triethylene tetramine, a kind of in diamines, diethylaminopropylamine, polymeric amide (200,203,3051,600,650,651), the modified by cardanol amine.
2. the preparation method of the anticorrosion epoxy finish of weight is characterized in that, the preparation process of described method is:
(1) butyl (tetra) titanate and 1 ~ 10 mass parts fluorine containing silane coupling agent with 5 ~ 20 mass parts is dissolved in 5 ~ 20 quality xylene solutions, be added drop-wise in the mixed solution of being formed by 1 ~ 5 part of Virahol, 5 ~ 10 parts of dimethylbenzene, 0.5 ~ 10 part of water, 0.1 ~ 5 part of nitric acid, the pH value of regulation system is reacted 4 ~ 8h down in 25 ~ 50 ℃ between 3 ~ 5;
(2) under the maintenance system acidic conditions, add the solvent of 1 ~ 10 part of water and 20 ~ 60 mass parts in proportion, other organosilicon presomas that contain fluorocarbon radicals and 10 ~ 30 mass parts that contain epoxy group(ing), 1 ~ 15 mass parts that drip 10 ~ 20 mass parts then in the reaction system prepare silicone resin solution; Continue to stir 4 ~ 8h; Add the anhydrous sodium sulphate after-filtration that dewaters, drip less ammonia, regulation system pH value is 7 ~ 8,25 ~ 50 ℃ and reacts 4 ~ 8h down; Drip a small amount of concentrated hydrochloric acid regulation system at last for neutral;
(3) in above-mentioned system, add the A Hydrogenated Bisphenol A a Resins, epoxy of 100 mass parts and the TDE85 Resins, epoxy of 10 ~ 30 mass parts in proportion, 0.1 the dispersion agent of ~ 5 mass parts, 0.1 the flow agent of ~ 5 mass parts, 0.1 the defoamer of ~ 5 mass parts, 0.1 the solvent of the promotor of ~ 2 mass parts and 20 ~ 120 mass parts, under 2000 ~ 3000r/min condition, stir 0.5 ~ 1h, get component A;
(4) with the solidifying agent of 30 ~ 200 mass parts and the solvent of 20 ~ 200 mass parts, stir, get component B;
(5) with component A and B component according to weight ratio (1 ~ 9): 1 mixes, stir and slaking 30min after, get final product application, use up in the time at 6 ~ 8h.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103525284A (en) * | 2013-10-21 | 2014-01-22 | 山东科技大学 | Oceanic heavy corrosion resistant self-stratifying coating |
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| CN104212309A (en) * | 2014-09-19 | 2014-12-17 | 江苏海晟涂料有限公司 | Silicon carbide coating and preparation method thereof |
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| CN106479311A (en) * | 2016-09-21 | 2017-03-08 | 陕西兴化集团有限责任公司联碱分厂 | Alkali factory special anticorrosion coat matching system |
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| CN111548667A (en) * | 2020-04-14 | 2020-08-18 | 宁波信泰机械有限公司 | Composite polysiloxane protective finish paint for PVD (physical vapor deposition) and preparation method thereof |
| CN113072876A (en) * | 2021-03-22 | 2021-07-06 | 中铁第四勘察设计院集团有限公司 | Contact net steel cantilever positioning device coated with dirt-repellent composite coating and processing method |
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| CN103525284A (en) * | 2013-10-21 | 2014-01-22 | 山东科技大学 | Oceanic heavy corrosion resistant self-stratifying coating |
| CN103555148A (en) * | 2013-10-28 | 2014-02-05 | 安徽明都电气有限公司 | Anti-yellowing paint for electric instrument cabinet as well as preparation method thereof |
| CN104559653A (en) * | 2013-10-29 | 2015-04-29 | 中国石油天然气集团公司 | Hydrogenated bisphenol A epoxy deck paint and preparation method thereof |
| CN103571413A (en) * | 2013-11-13 | 2014-02-12 | 苏州市姑苏新型建材有限公司 | Dry-hanging stone curtain wall epoxy adhesive and preparation method thereof |
| CN103571413B (en) * | 2013-11-13 | 2015-06-03 | 苏州市姑苏新型建材有限公司 | Dry-hanging stone curtain wall epoxy adhesive and preparation method thereof |
| CN104212309A (en) * | 2014-09-19 | 2014-12-17 | 江苏海晟涂料有限公司 | Silicon carbide coating and preparation method thereof |
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| CN104761994B (en) * | 2015-04-10 | 2016-11-23 | 南昌航空大学 | A kind of preparation method of photo-curable silicone modified epoxy paint film |
| CN104761994A (en) * | 2015-04-10 | 2015-07-08 | 南昌航空大学 | Preparation method of photocuring organic silicon modified epoxy resin paint film |
| CN106085223A (en) * | 2016-06-17 | 2016-11-09 | 武汉山虎涂料有限公司 | Fluorine richness epoxy polysiloxane coating and its preparation method and application |
| CN106085223B (en) * | 2016-06-17 | 2019-04-26 | 武汉山虎涂料有限公司 | Fluorine richness epoxy polysiloxane coating and its preparation method and application |
| CN106479311A (en) * | 2016-09-21 | 2017-03-08 | 陕西兴化集团有限责任公司联碱分厂 | Alkali factory special anticorrosion coat matching system |
| CN106752683A (en) * | 2016-11-23 | 2017-05-31 | 安徽菱湖漆股份有限公司 | A kind of extra-weather-proof automatically cleaning epoxy finish and preparation method thereof |
| CN107793817A (en) * | 2017-09-18 | 2018-03-13 | 苏州吉人高新材料股份有限公司 | A kind of organo-mineral complexing fluorescence that adulterates covers fluorescent paint of support soil and preparation method thereof |
| CN107793817B (en) * | 2017-09-18 | 2020-07-14 | 苏州吉人高新材料股份有限公司 | Organic-inorganic composite fluorescent montmorillonite-doped fluorescent paint and preparation method thereof |
| CN109401530A (en) * | 2018-09-12 | 2019-03-01 | 安徽康瑞高科新材料技术工程有限公司 | A kind of epoxy finish and preparation method thereof |
| CN111548667A (en) * | 2020-04-14 | 2020-08-18 | 宁波信泰机械有限公司 | Composite polysiloxane protective finish paint for PVD (physical vapor deposition) and preparation method thereof |
| CN113072876A (en) * | 2021-03-22 | 2021-07-06 | 中铁第四勘察设计院集团有限公司 | Contact net steel cantilever positioning device coated with dirt-repellent composite coating and processing method |
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