CN108192470A - A kind of zinc-rich anticorrosive coating - Google Patents
A kind of zinc-rich anticorrosive coating Download PDFInfo
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- CN108192470A CN108192470A CN201810091716.5A CN201810091716A CN108192470A CN 108192470 A CN108192470 A CN 108192470A CN 201810091716 A CN201810091716 A CN 201810091716A CN 108192470 A CN108192470 A CN 108192470A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/26—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G79/00—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule
- C08G79/08—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule a linkage containing boron
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a kind of zinc-rich anticorrosive coating, the zinc-rich anticorrosive coating is mainly 3.5 6 by mass ratio:1 component A and B component mixes, wherein, the component A includes following components according to mass fraction meter：0.5 1.5 parts of 100 parts of inorganic nano zinc powder, 45 75 parts of bisphenol-s epoxy resin, 20 35 parts of fume colloidal silica, 10 25 parts of novolac epoxy resin, 15 20 parts of bisphenol-A epoxy resin, 5 10 parts of tetrabromobisphenol A resin, 6 15 parts of phthalic acid bisglycidyl ester and levelling agent；The B component includes following components according to mass fraction meter：35 parts of 50 65 parts of ammonia alkyl silicone oil, 15 25 parts of polyaniline, 5 10 parts of graphene microchip, 58 parts of boron-contained silicone, 13 parts of antifoaming agent and wetting dispersing agent.The present invention has the advantages that：（1）Enhance the electric conductivity of polymer in coating；（2）Corrosion Protection is excellent；（3）Coating good physical performance.
Description
Technical field
The present invention relates to a kind of coating, more particularly, to a kind of zinc-rich anticorrosive coating.
Background technology
Organic zinc-rich paint：Organic zinc-rich paint often uses epoxy resin, chlorinated rubber, vinylite and polyurethane resin
For film forming binder.The most commonly used is epoxy zinc-enriched paint, and wherein polyamide cure epoxy zinc rich primer is organic zinc-rich primer
The maximum kind of middle application.Regulation organic zinc-rich paint zinc powder accounts for dry in U.S. steel structure coating association SSPC Paint -20
Film quality is no less than 77%, and inorganic zinc coating zinc powder accounts for dry film quality and is no less than 74%, this regulation is exactly to increase film
Electric conductivity.In addition, the caking property of organic resin is better than inorganic resin, also provided preferably for the attachment of high-content zinc powder in this way
Ensure.
Main antisepsis has：Shielding action, electrochemical protection, film selfreparing and passivation.
（1）Shielding action, the important generation and corrosion product by difficulty soluble salt of shielding action of zinc-rich paint.Traditional zinc-rich
Coating uses spherical zinc powder, is that electronics is transmitted in the form of point contact, and also keep being in electrical contact with steel matrix between them.
The corrosion product of zinc is different with the difference of corrosive medium, there is zinc oxide, zinc hydroxide, basic zinc carbonate, alkali formula zinc oxide sulphur
Sour zinc etc. since these substances are formed such that volume expansion, fills up the gap of film, so as to prevent iron surface and oxygen, water etc.
The further contact of hazardous medium plays physical shielding effect.These corrosion products can be such that film closely combines simultaneously
Come, increase resistance, slow down the rate of electrochemical corrosion, the wear rate of zinc powder will substantially reduce, and durability will improve.
（2）The protective effect zinc-rich paint for sacrificing zinc powder contains a large amount of zinc powder, between zinc particles, zinc particles and steel table
It is in close contact between face, zinc current potential is more negative than iron, so zinc atom easily loses electronics and becomes anode, iron in electrolyte solution
It is then cathode.In anode region, zinc is corroded due to losing electronics, and in cathodic region, section does not obtain electronics to steel surface, so as to
To protection.
（3）The self-healing effect of film, after having position by mechanical damage on film, exposes parent metal, compared with facet
Product internal corrosion electric current can flow to steel exposed portion, then the product of zinc, which is deposited upon, is here formed as layer protecting film, delays to corrode
Continue to occur.
（4）Passivation：Coating has steel a good passivation, with the evaporation of moisture in coating film forming procedure,
The PH values of coating change, and the electrode potential of steel matrix is not the state being constantly in by electrochemical protection, therefore apply
Material has good passivation to steel base material.
Film conduction to be made plays the effect of sacrificial anode, it is desirable that entire coating must have good conduction, make entire
Coating and steel substrate System forming electrochemical circuit, zinc-rich coating can just play electro-chemical protection.Current organic zinc-rich
The electric conductivity of the organic binder of coating is poor, it is necessary to increase zinc content to ensure electric conductivity.
Such as a kind of a kind of epoxy zinc-enriched paint disclosed in Chinese patent document, Authorization Notice No. CN
102417784 B, the invention are related to a kind of epoxy zinc-enriched paint, and the coating is using epoxy resin as base-material, cashew nut oil polyamide
For curing agent, super-fine zinc dust is main rust resisting pigment, adds a certain amount of auxiliary agent, solvent etc. and is formulated by a certain percentage.
Epoxy zinc-enriched paint provided by the present invention is suitable for dip coating manner application, and paint film after application has fabulous corrosion-resistant, resistance to
Chemistry and solvent resistance.But there is no the component of addition enhancing conducting polymer performance in the invention so that zinc metal therein
Property can not play shielding action well.
Invention content
The present invention is the zinc powder in order to overcome the electric conductivity in the organic polymer in zinc-rich paint in the prior art poor
Shield effectiveness it is poor the problem of, conducting polymer performance can be improved by providing one kind, improve zinc-rich paint to metal base
A kind of zinc-rich anticorrosive coating of Corrosion Protection.
To achieve these goals, the present invention uses following technical scheme：
A kind of zinc-rich anticorrosive coating, the zinc-rich anticorrosive coating are mainly 3.5-6 by mass ratio:1 component A and B groups
Divide and mix, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 45-
75 parts, 20-35 parts of fume colloidal silica, 10-25 parts of novolac epoxy resin, 15-20 parts of bisphenol-A epoxy resin, tetrabromo
0.5-1.5 parts of 5-10 parts of bisphenol a resin, 6-15 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：50-65 parts of ammonia alkyl silicone oil, 15-25 parts of polyaniline, stone
3-5 parts of black 5-10 parts of alkene microplate, 5-8 parts of boron-contained silicone, 1-3 parts of antifoaming agent and wetting dispersing agent.
Preferably, the zinc-rich anticorrosive coating is mainly 4-6 by mass ratio:1 component A and B component mixing and
Into, wherein, the component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin
55-70 parts, 25-30 parts of fume colloidal silica, 10-20 parts of novolac epoxy resin, 18-20 parts of bisphenol-A epoxy resin, four
0.5-1.5 parts of 5-10 parts of bromine bisphenol a resin, 6-10 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：55-60 parts of ammonia alkyl silicone oil, 18-25 parts of polyaniline, stone
3-5 parts of black 8 parts of alkene microplate, 5 parts of boron-contained silicone, 2 parts of antifoaming agent and wetting dispersing agent.
Preferably, the zinc-rich anticorrosive coating is mainly 5.5 by mass ratio:1 component A and B component mixing and
Into, wherein, the component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin
65 parts, 30 parts of fume colloidal silica, 15 parts of novolac epoxy resin, 18 parts of bisphenol-A epoxy resin, tetrabromobisphenol A resin 8
1 part of part, 6 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：60 parts of ammonia alkyl silicone oil, 20 parts of polyaniline, graphene are micro-
4 parts of 8 parts of piece, 5 parts of boron-contained silicone, 2 parts of antifoaming agent and wetting dispersing agent.
Epoxy resin is used to add in zinc powder in the epoxy for basis material in the zinc-rich anticorrosive coating of the present invention,
Protection can be generated to basis material, avoid the electrochemical corrosion of basis material.Epoxy resin is carried out using ammonia alkyl silicone oil
Curing can effectively improve the high and low temperature resistance and weatherability of coating, while also can effectively improve crosslink density, reach
Enhance coating mechanical property and the adhesive property between matrix.It also added graphene microchip and the poly- silicon of boracic in the present invention
Alkane, boron polysilane have certain electric conductivity, and entire coating is enabled to have good conduction, makes entire coating and steel
Iron-based material System forming electrochemical circuit.So as to help steel substrate that there is better corrosion resistance.
Preferably, the synthetic method of the ammonia alkyl silicone oil in the B component is as follows：
（a）In the case where nitrogen protective atmosphere encloses, 80-100 parts of methyl aminopropyl dimethoxy silane, water are taken according to according to mass fraction meter
35-50 parts and 3-5 parts of sodium tetraborate are placed in reaction kettle, are stirred to react 2.5-5 hours, stratification, is removed after reaction
Bottom aqueous layer is removed, upper strata oil reservoir is dried with anhydrous sodium sulfate, obtains methyl aminopropyl dimethoxy silane hydrolysate；
（b）In the case where nitrogen protective atmosphere encloses, step is taken according to according to mass fraction meter（a）In methyl aminopropyl dimethoxy silane
50 parts of hydrolysate, 100 parts of octamethylcy-clotetrasiloxane, bis- 1 part of aminopropyl -1,1,3,3- tetramethyl disiloxanes of 1,3- and alkali
0.5 part of glue is placed in reaction kettle, reacts 1 hour at 85 DEG C, then increase temperature to 115 DEG C the reaction was continued 2.5 hours, then soon
Speed is warming up to 185 DEG C and keeps decomposing alkali glue in 20 minutes, and then decompression extracts low-boiling-point substance, obtains ammonia alkyl silicone oil.
The amino content of ammonia alkyl silicone oil in the present invention is higher, and amino position is in the both ends end group of strand
And side group, therefore its when crosslinking effect its be build crosslinking, can effectively improve the adhesive force and mechanics of coating
Intensity.In addition the amino in this ammonia alkyl silicone oil is primary amine, has extremely strong reactivity, can quickly be crosslinked with epoxy
Reaction is so as to rapid curing.
Preferably, the step（a）In reaction temperature be 45-60 DEG C.
Preferably, the synthetic method of the boron-contained silicone in the B component is as follows：
（1）In the case where nitrogen protective atmosphere encloses, 150 parts of toluene and 20 parts of tetrahydrofurans is taken to be added in reaction kettle, then thereto
3 parts of metallic sodium is added in, raising temperature is quick to stir to 100 DEG C, and metallic sodium is broken into sodium sand, is then cooled to 85 DEG C, thereto
It is added dropwise and contains 16 parts of diphenyl dichlorosilane, 5 parts of dichloromethyl phenylsilane, 1.5 parts of methyl hydrogen dichlorosilane and phenyl two
50 parts of the toluene solution that 2 parts of boron chloride is stirred to react 1 hour after being added dropwise to complete, and then heats to 115 DEG C, continues back flow reaction
5-10 hours, stop heating after reaction and be down to room temperature, 5 parts of absolute ethyl alcohol is added dropwise thereto and continues stirring 1 hour, standing point
Layer, takes supernatant liquor, and vacuum distillation obtains boron-contained silicone crude product；
（2）By step（1）In boron-contained silicone crude product with synthesizing tetrahydrofuran saturated solution, be then poured into 20 times of volumes
Methanol in, filter the precipitation of precipitation, and by its solution modeling 3 time repeatedly, the precipitation finally obtained be dried, is obtained white
The boron-contained silicone of color.
Boron atom is added in polysilane main chain in the present invention, the electric conductivity and UV absorption of polysilane can be improved
Performance so that the conductive capability of whole coating greatly enhances, enhances its Corrosion Protection, since it is with UV absorption
Performance, therefore it also has ultraviolet light certain protective capacities, simultaneously because the solubility property of methyl polysilicon alkane is poor, therefore this
It is used in invention and adds phenyl in side group, can effectively improve the solubility property of polysilane.By the way that polysilane is dissolved in ring
In oxygen resin, the electric conductivity of polymer can be effectively improved, so as to enhance the Corrosion Protection of zinc anticorrosive coating.
Preferably, the step（1）It also needs to add in 0.5 part of diethylene glycol dimethyl ether and 0.1 part of crown ether in middle solution.
Addition diethylene glycol dimethyl ether and crown ether contribute to the raising of the molecular weight of polysilane in the reaction.
Preferably, the step（1）It is middle to use ultrasonic wave assisted reaction.
Preferably, the ultrasonic echography wave power is 700-800W, it can be effective using ultrasonic wave assisted reaction
Raising reaction yield and polymer monodispersity.
Preferably, iodine crystal is also added in B component containing 0.5 part of iodine crystal in the B component, it can be effective
Enhance the electric conductivity of polysilane, so as to enhance the Corrosion Protection of zinc anticorrosive coating.
Therefore, the present invention has the advantages that：（1）Enhance the electric conductivity of polymer in coating；（2）Anticorrosive property
It can be excellent；（3）Coating good physical performance.
Description of the drawings
Fig. 1 is the GPC test charts of ammonia alkyl silicone oil synthesized in invention.
Fig. 2 is the GPC test charts of the boron-contained silicone synthesized in invention.
Fig. 3 is the fluorescence spectrum test chart of the boron-contained silicone synthesized in invention.
Fig. 4 is the ultra-violet absorption spectrum test chart of the boron-contained silicone synthesized in invention.
Specific embodiment
Technical scheme of the present invention is made below by specific embodiment to further describe explanation.
If the raw material that use is said without specified otherwise, in the embodiment of the present invention is raw material commonly used in the art, implement
Method employed in example is the conventional method of this field.
Embodiment 1
A kind of zinc-rich anticorrosive coating, the zinc-rich anticorrosive coating are mainly 3.5 by mass ratio:1 component A and B component
It mixes, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 45
Part, 20 parts of fume colloidal silica, 10 parts of novolac epoxy resin, 15 parts of bisphenol-A epoxy resin, tetrabromobisphenol A resin 5
0.5 part of part, 6 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：50 parts of ammonia alkyl silicone oil, 15 parts of polyaniline, graphene are micro-
3 parts of 5 parts of piece, 5 parts of boron-contained silicone, 1 part of antifoaming agent, 0.5 part of iodine crystal and wetting dispersing agent.
Embodiment 2
A kind of zinc-rich anticorrosive coating, the zinc-rich anticorrosive coating are mainly 6 by mass ratio:1 component A and B component is mixed
It closes, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 75
Part, 35 parts of fume colloidal silica, 25 parts of novolac epoxy resin, 20 parts of bisphenol-A epoxy resin, tetrabromobisphenol A resin 10
1.5 parts of part, 15 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：65 parts of ammonia alkyl silicone oil, 25 parts of polyaniline, graphene are micro-
5 parts of 10 parts of piece, 8 parts of boron-contained silicone, 3 parts of antifoaming agent, 0.5 part of iodine crystal and wetting dispersing agent.
Embodiment 3
A kind of zinc-rich anticorrosive coating, the zinc-rich anticorrosive coating are mainly 4 by mass ratio:1 component A and B component is mixed
It closes, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 55
Part, 25 parts of fume colloidal silica, 10 parts of novolac epoxy resin, 18 parts of bisphenol-A epoxy resin, tetrabromobisphenol A resin 5
0.5 part of part, 6 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：55 parts of ammonia alkyl silicone oil, 18 parts of polyaniline, graphene are micro-
3 parts of 8 parts of piece, 5 parts of boron-contained silicone, 2 parts of antifoaming agent, 0.5 part of iodine crystal and wetting dispersing agent.
Embodiment 4
A kind of zinc-rich anticorrosive coating, the zinc-rich anticorrosive coating are mainly 6 by mass ratio:1 component A and B component is mixed
It closes, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 70
Part, 30 parts of fume colloidal silica, 20 parts of novolac epoxy resin, 20 parts of bisphenol-A epoxy resin, tetrabromobisphenol A resin 10
1.5 parts of part, 10 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：60 parts of ammonia alkyl silicone oil, 25 parts of polyaniline, graphene are micro-
5 parts of 8 parts of piece, 5 parts of boron-contained silicone, 2 parts of antifoaming agent, 0.5 part of iodine crystal and wetting dispersing agent.
Embodiment 5
A kind of zinc-rich anticorrosive coating, the zinc-rich anticorrosive coating are mainly 5.5 by mass ratio:1 component A and B component
It mixes, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 65
Part, 30 parts of fume colloidal silica, 15 parts of novolac epoxy resin, 18 parts of bisphenol-A epoxy resin, tetrabromobisphenol A resin 8
1 part of part, 6 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：60 parts of ammonia alkyl silicone oil, 20 parts of polyaniline, graphene are micro-
4 parts of 8 parts of piece, 5 parts of boron-contained silicone, 2 parts of antifoaming agent, 0.5 part of iodine crystal and wetting dispersing agent.
Embodiment 6
The synthetic method of ammonia alkyl silicone oil in the B component is as follows：
（a）In the case where nitrogen protective atmosphere encloses, 80 parts of methyl aminopropyl dimethoxy silane, 35 parts of water are taken according to according to mass fraction meter
And 3 parts of sodium tetraborate is placed in reaction kettle, reaction temperature is 45 DEG C, is stirred to react 2.5 hours, stands divide after reaction
Layer removes bottom aqueous layer, and upper strata oil reservoir is dried with anhydrous sodium sulfate, obtains methyl aminopropyl dimethoxy silane hydrolysate；
（b）In the case where nitrogen protective atmosphere encloses, step is taken according to according to mass fraction meter（a）In methyl aminopropyl dimethoxy silane
50 parts of hydrolysate, 100 parts of octamethylcy-clotetrasiloxane, bis- 1 part of aminopropyl -1,1,3,3- tetramethyl disiloxanes of 1,3- and alkali
0.5 part of glue is placed in reaction kettle, reacts 1 hour at 85 DEG C, then increase temperature to 115 DEG C the reaction was continued 2.5 hours, then soon
Speed is warming up to 185 DEG C and keeps decomposing alkali glue in 20 minutes, and then decompression extracts low-boiling-point substance, obtains ammonia alkyl silicone oil.
Embodiment 7
The synthetic method of ammonia alkyl silicone oil in the B component is as follows：
（a）In the case where nitrogen protective atmosphere encloses, 100 parts of methyl aminopropyl dimethoxy silane, water 50 are taken according to according to mass fraction meter
5 parts of part and sodium tetraborate are placed in reaction kettle, and reaction temperature is 60 DEG C, are stirred to react 5 hours, are stood divide after reaction
Layer removes bottom aqueous layer, and upper strata oil reservoir is dried with anhydrous sodium sulfate, obtains methyl aminopropyl dimethoxy silane hydrolysate；
（b）In the case where nitrogen protective atmosphere encloses, step is taken according to according to mass fraction meter（a）In methyl aminopropyl dimethoxy silane
50 parts of hydrolysate, 100 parts of octamethylcy-clotetrasiloxane, bis- 1 part of aminopropyl -1,1,3,3- tetramethyl disiloxanes of 1,3- and alkali
0.5 part of glue is placed in reaction kettle, reacts 1 hour at 85 DEG C, then increase temperature to 115 DEG C the reaction was continued 2.5 hours, then soon
Speed is warming up to 185 DEG C and keeps decomposing alkali glue in 20 minutes, and then decompression extracts low-boiling-point substance, obtains ammonia alkyl silicone oil.
Embodiment 8
The synthetic method of boron-contained silicone in the B component is as follows：
（1）In the case where nitrogen protective atmosphere encloses, using 800W ultrasonic wave assisted reactions, take 150 parts of toluene, 20 parts of tetrahydrofurans, 0.5 part
Diethylene glycol dimethyl ether and 0.1 part of crown ether are added in reaction kettle, then add in 3 parts of metallic sodium, raising temperature to 100 thereto
DEG C, it is quick to stir, metallic sodium is broken into sodium sand, is then cooled to 85 DEG C, be added dropwise thereto containing 16 parts of diphenyl dichlorosilane,
50 parts of the toluene solution of 2 parts of 5 parts of dichloromethyl phenylsilane, 1.5 parts of methyl hydrogen dichlorosilane and diphenylboron bromide is added dropwise
It is stirred to react after the completion 1 hour, then heats to 115 DEG C, continue back flow reaction 8 hours, stop heating after reaction and be down to
Room temperature is added dropwise 5 parts of absolute ethyl alcohol and continues stirring 1 hour thereto, and stratification takes supernatant liquor, and vacuum distillation obtains boracic
Polysilane crude product；
（2）By step（1）In boron-contained silicone crude product with synthesizing tetrahydrofuran saturated solution, be then poured into 20 times of volumes
Methanol in, filter the precipitation of precipitation, and by its solution modeling 3 time repeatedly, the precipitation finally obtained be dried, is obtained white
The boron-contained silicone of color.
The comprehensive physical performance of zinc-rich anticorrosive coating prepared by 1 embodiment 1-5 of table
| Physical property | Examination criteria | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Appearance | Observation | It is smooth | It is smooth | It is smooth | It is smooth | It is smooth |
| Adhesive force | GB/T 5210 | 0 grade | 0 grade | 0 grade | 0 grade | 0 grade |
| Salt spray resistance（h） | GB/T 1771 | 1400 | 1500 | 1400 | 1500 | 1500 |
| Flexibility | GB/T 1731 | 1 grade | 1 grade | 1 grade | 1 grade | 1 grade |
| Acidic fog resistance performance（h） | GB/T 9274 | 800 | 1000 | 900 | 1000 | 1000 |
| Salt water resistance（h） | GB/T 1763 | 650 | 700 | 650 | 700 | 700 |
The prior art or routine of above-described embodiment design are connected as known to a person skilled in the art therefore do not do herein in detail
Thin description.
More than, it is merely preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, it is any
Those familiar with the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its invents
Design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of zinc-rich anticorrosive coating, it is characterized in that, the zinc-rich anticorrosive coating is mainly 3.5-6 by mass ratio:1
Component A and B component mix, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 45-
75 parts, 20-35 parts of fume colloidal silica, 10-25 parts of novolac epoxy resin, 15-20 parts of bisphenol-A epoxy resin, tetrabromo
0.5-1.5 parts of 5-10 parts of bisphenol a resin, 6-15 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：50-65 parts of ammonia alkyl silicone oil, 15-25 parts of polyaniline, stone
3-5 parts of black 5-10 parts of alkene microplate, 5-8 parts of boron-contained silicone, 1-3 parts of antifoaming agent and wetting dispersing agent.
A kind of 2. zinc-rich anticorrosive coating according to claim 1, which is characterized in that the zinc-rich anticorrosive coating master
To be 4-6 by mass ratio:1 component A and B component mixes, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 55-
70 parts, 25-30 parts of fume colloidal silica, 10-20 parts of novolac epoxy resin, 18-20 parts of bisphenol-A epoxy resin, tetrabromo
0.5-1.5 parts of 5-10 parts of bisphenol a resin, 6-10 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：55-60 parts of ammonia alkyl silicone oil, 18-25 parts of polyaniline, stone
3-5 parts of black 8 parts of alkene microplate, 5 parts of boron-contained silicone, 2 parts of antifoaming agent and wetting dispersing agent.
3. a kind of zinc-rich anticorrosive coating according to claim 1, it is characterized in that, the zinc-rich anticorrosive coating is main
It is 5.5 by mass ratio:1 component A and B component mixes, wherein,
The component A includes following components according to mass fraction meter：100 parts of inorganic nano zinc powder, bisphenol-s epoxy resin 65
Part, 30 parts of fume colloidal silica, 15 parts of novolac epoxy resin, 18 parts of bisphenol-A epoxy resin, tetrabromobisphenol A resin 8
1 part of part, 6 parts of phthalic acid bisglycidyl ester and levelling agent；
The B component includes following components according to mass fraction meter：60 parts of ammonia alkyl silicone oil, 20 parts of polyaniline, graphene are micro-
4 parts of 8 parts of piece, 5 parts of boron-contained silicone, 2 parts of antifoaming agent and wetting dispersing agent.
4. a kind of zinc-rich anticorrosive coating according to any one in claim 1-3, it is characterized in that, the B component
In ammonia alkyl silicone oil synthetic method it is as follows：
（a）In the case where nitrogen protective atmosphere encloses, 80-100 parts of methyl aminopropyl dimethoxy silane, water are taken according to according to mass fraction meter
35-50 parts and 3-5 parts of sodium tetraborate are placed in reaction kettle, are stirred to react 2.5-5 hours, stratification, is removed after reaction
Bottom aqueous layer is removed, upper strata oil reservoir is dried with anhydrous sodium sulfate, obtains methyl aminopropyl dimethoxy silane hydrolysate；
（b）In the case where nitrogen protective atmosphere encloses, step is taken according to according to mass fraction meter（a）In methyl aminopropyl dimethoxy silane
50 parts of hydrolysate, 100 parts of octamethylcy-clotetrasiloxane, bis- 1 part of aminopropyl -1,1,3,3- tetramethyl disiloxanes of 1,3- and alkali
0.5 part of glue is placed in reaction kettle, reacts 1 hour at 85 DEG C, then increase temperature to 115 DEG C the reaction was continued 2.5 hours, then soon
Speed is warming up to 185 DEG C and keeps decomposing alkali glue in 20 minutes, and then decompression extracts low-boiling-point substance, obtains ammonia alkyl silicone oil.
5. a kind of zinc-rich anticorrosive coating according to claim 4, it is characterized in that, the step（a）In reaction temperature
Spend is 45-60 DEG C.
6. a kind of zinc-rich anticorrosive coating according to any one in claim 1-3, it is characterized in that, the B component
In boron-contained silicone synthetic method it is as follows：
（1）In the case where nitrogen protective atmosphere encloses, 150 parts of toluene and 20 parts of tetrahydrofurans is taken to be added in reaction kettle, then thereto
3 parts of metallic sodium is added in, raising temperature is quick to stir to 100 DEG C, and metallic sodium is broken into sodium sand, is then cooled to 85 DEG C, thereto
It is added dropwise and contains 16 parts of diphenyl dichlorosilane, 5 parts of dichloromethyl phenylsilane, 1.5 parts of methyl hydrogen dichlorosilane and phenyl two
50 parts of the toluene solution that 2 parts of boron chloride is stirred to react 1 hour after being added dropwise to complete, and then heats to 115 DEG C, continues back flow reaction
5-10 hours, stop heating after reaction and be down to room temperature, 5 parts of absolute ethyl alcohol is added dropwise thereto and continues stirring 1 hour, standing point
Layer, takes supernatant liquor, and vacuum distillation obtains boron-contained silicone crude product；
（2）By step（1）In boron-contained silicone crude product with synthesizing tetrahydrofuran saturated solution, be then poured into 20 times of volumes
Methanol in, filter the precipitation of precipitation, and by its solution modeling 3 time repeatedly, the precipitation finally obtained be dried, is obtained white
The boron-contained silicone of color.
7. a kind of zinc-rich anticorrosive coating according to claim 6, it is characterized in that, the step（1）In it is molten
It also needs to add in 0.5 part of diethylene glycol dimethyl ether and 0.1 part of crown ether in liquid.
8. a kind of zinc-rich anticorrosive coating according to claim 6, it is characterized in that, the step（1）In adopt
With ultrasonic wave assisted reaction.
9. a kind of zinc-rich anticorrosive coating according to claim 6, it is characterized in that, the ultrasonic power is
700-800W。
10. a kind of zinc-rich anticorrosive coating according to any one in claim 1-3, it is characterized in that, the B component
In also contain 0.5 part of iodine crystal.
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Application publication date: 20180622 |