CN108976925A - A kind of construction steel structure rust-proof top-coat - Google Patents
A kind of construction steel structure rust-proof top-coat Download PDFInfo
- Publication number
- CN108976925A CN108976925A CN201810723297.2A CN201810723297A CN108976925A CN 108976925 A CN108976925 A CN 108976925A CN 201810723297 A CN201810723297 A CN 201810723297A CN 108976925 A CN108976925 A CN 108976925A
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- Prior art keywords
- parts
- added
- agent
- proof top
- coat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
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- 239000000839 emulsion Substances 0.000 claims abstract description 36
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- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 25
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 23
- 239000003960 organic solvent Substances 0.000 claims abstract description 21
- 239000006096 absorbing agent Substances 0.000 claims abstract description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 18
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Classifications
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- 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
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
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- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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- 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
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- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
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- 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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Inorganic Chemistry (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to technical field of coatings, and in particular to a kind of construction steel structure rust-proof top-coat.It include following component: styrene-acrylic emulsion, acrylic emulsion, hydrophobically modified filler, pigments and fillers, dimethyl silicone polymer, nano zine oxide, nano-titanium dioxide, thickener, ultraviolet absorbing agent, levelling agent, defoaming agent, organic solvent in the paint vehicle.Inorganic filler used in the hydrophobically modified filler is the mixture of kaolin, talcum powder, precipitated calcium carbonate and Alpha-alumina, and four mass ratio is 8:5:2:1 in mixture；Defoaming agent is organic silicon defoamer；Ultraviolet absorbing agent is septichen phenyl ester or ESCALOL 567；Organic solvent is isopropanol, ethylene glycol or butyl acetate.The type rust-proof top-coat has adhesive force strong, and curing time is shorter, the high advantage of film strength, especially has water resistance outstanding.
Description
Technical field
The present invention relates to technical field of coatings, and in particular to a kind of construction steel structure rust-proof top-coat.
Background technique
Coating refers to the general name that applied to body surface and can form the material of tough and tensile protective film, and building coating is in coating
An important class will generally be used for inner wall of building in China, exterior wall, ceiling, ground, the coating of toilet is known as building
Build coating；For the construction safety of steel construction, it is also necessary to use antirust paint vehicle.
Conventional use of antirust paint substantially oiliness and two kinds aqueous.Oily antirust varniss keeps the greasy removal of material surface tired
Difficulty has been rarely employed.Oily antirust varniss is easy to use, cheap, but because containing the noxious materials such as nitrite, chromate,
Larger to operator's harm, country has limited use, and such properties of product are single, is not able to satisfy the anti-of magnetic alloy material
Rust requires.It is main component that water-based metal antirust paint, which selects metal strength chelating agent inositol hexaphosphate, several aqueous with other
Additive compound forms.Inositol hexaphosphate is the Nantural non-toxic Organic chemical products extracted from cereal crops, when it is as magnetic
Property material antirust agent in use, can be chelated rapidly on surface with metal, form one layer of fine and close unimolecule complex compound protective film, can
Effectively inhibit corrosion of metal.Material surface after the product treatment keeps primary colors, it is not necessary to which washing can enter under coating etc.
Procedure.Rust resisting pigment is that the important component physics rust resisting pigment of antirust paint is that a kind of chemical property itself is relatively stable
Pigment, they are the physical properties by itself, and stable chemical performance, quality is hard, and particle is subtle, and excellent fillibility mentions
The consistency of high paint film reduces the permeable of paint film to play the role of antirust iron oxide red and just belong to this substance and metal
The rust-preventing characteristic of aluminium powder is that have sclay texture due to aluminium powder, and formation paint film is close, and there are also the energy of stronger reflection ultraviolet
The anti-aging ability of paint film can be improved in power.
Conventional steel building protection currently on the market is mainly using the dual-coating protection side of the finishing coat of anti-corrosive primer
The corrosion-resistant protective performances such as anti-oxidant of formula, priming paint are stronger, and finishing coat then mainly considers the stability and decorative effect of paint vehicle, simultaneous
The decorative performance of the protective performance of Gu Yiding, rust-proof top-coat is usually preferable, but the emulsion paint of this kind of addition inorganic filler
The generally problem poor with water resistance, for material under high humility and immersion condition, the film layer of coating is easy water suction bulge, drum
Strength of coating after packet significantly reduces, and adhesive force is deteriorated, and the phenomenon that film layer falls off, burn into pollutes is easy to appear, so that steel construction
The decorative performance and protective value on surface substantially reduce.
Number of patent application CN201310440226.9 discloses a kind of aqueous coating for engineering goods surface, the protection
Coating just includes waterborne basecoat and aqueous finish paint layer, and wherein raw material used in top coat layer includes: hydroxyl acrylic emulsion, face
Material, filler, auxiliary agent, deionized water, finishing coat rate of drying used in the technical solution is very fast, and gloss is high, richness is good, resistance to
Artificial ageing is had excellent performance, adhesive force is excellent, high rigidity, antiseptic property are strong, but the waterproof of finishing coat, water resistance are poor, coating
It is used in moist gentle environment for a long time, is easy to happen water absorption and swelling, eventually led to coating disintegration, crack and fall off, lose
Protective performance.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of construction steel structure rust-proof top-coat, the type is anti-
The finishing coat that becomes rusty has adhesive force strong, and curing time is shorter, the high advantage of film strength, especially has water-fast, anticorrosive property outstanding
Energy.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of construction steel structure rust-proof top-coat includes following component: styrene-acrylic emulsion in the paint vehicle according to mass fraction
40-50 parts, 15-18 parts of acrylic emulsion, 20-25 parts of hydrophobically modified filler, 5-7 parts of pigments and fillers, dimethyl silicone polymer 7-13
Part, 2-5 parts of nano zine oxide, 2-3 parts of nano-titanium dioxide, 1.2-2.5 parts of thickener, 1.6-2.2 parts of ultraviolet absorbing agent, stream
Flat agent 0.7-1.1 parts, 1.1-1.5 parts of defoaming agent, 6-10 parts of organic solvent；
Wherein, the preparation method of the hydrophobically modified filler includes the following steps:
(1) by the 1 of 65.5g, 1,1- trihydroxy ethane, the p-methyl benzenesulfonic acid of 5.3g is added to the tetrahydrofuran solvent of 1L
In, mixture is in a kettle with 45-50 DEG C of temperature heating and stirring and dissolving；Then the 2 of 35.2g is added into reaction kettle,
The 4A type zeolite catalyst of 4,6- trimethoxybenzaldehyde and 55g reacts 6-8h with 53-55 DEG C of temperature, into product
The triethylamine and 100g dichloromethane solvent of 52g is added, then sufficiently dilution dissolution is filtered product, filtrate is through phosphoric acid
After salt buffer extracts repeatedly, white form of solid object is obtained after organic phase is evaporated under reduced pressure and is dried in vacuo；
(2) 10g white form of solid object is dissolved in the methylene chloride of 300ml, is filled with nitrogen into the reaction kettle where solution
Then 23.5g triethylamine, 6.2g pyridine and 15.8g p-nitrophenyl chloroformate ester are added to reaction kettle as protective atmosphere by gas
In, and 15g4A type zeolite catalyst is added, with 35-40 DEG C of thermotonus 8-10h, product is added to the anhydrous ether of 1L
Middle dissolved dilution obtains filtrate after filtering, filter vacuum is dried, and obtains the grafting compound of required hydrophobically modified；
(3) 0.5L dioxane solvent is added in reaction kettle, and is filled with nitrogen as protective atmosphere, then by 15g
The grafting that upper step obtains is added in reaction kettle with compound sufficiently dissolves, and then adds 4g melamine and 12g potassium carbonate
Enter and be sufficiently mixed into reaction kettle, mixture 0-3 DEG C at a temperature of react 1.5-2h, then raise the temperature to 35-40 DEG C
Continue back flow reaction 15-18h, add 4g aminomethyl trimethyl silane after the reaction was completed, continues back flow reaction 4-5h, by product
Organic solvent is removed after being evaporated under reduced pressure, and is washed 2-4 times with deionized water and petroleum ether circulation, is obtained required hydrophobically modified
Agent；
(4) 15g hydrophobic modifier, 3g titanate coupling agent are added in 1L petroleum ether solvent, are sufficiently stirred to obtain molten
Then 5kg inorganic filler is added in solution, is heated to 65-70 DEG C by liquid, be stirred to react with the revolving speed of 400-450r/min
Then 30-50min filters mixture, solid content is dried to obtain required hydrophobically modified filler.
Preferably, include following component in paint vehicle according to mass fraction: 43-45 parts of styrene-acrylic emulsion, acrylic emulsion 16-
17 parts, 22-24 parts of hydrophobically modified filler, 5.5-6 parts of pigments and fillers, 8-11 parts of dimethyl silicone polymer, 3-4 parts of nano zine oxide,
2.4-2.8 parts of nano-titanium dioxide, 1.7-2.2 parts of thickener, 1.7-1.9 parts of ultraviolet absorbing agent, 0.8-1.0 parts of levelling agent,
1.2-1.4 parts of defoaming agent, 8-9 parts of organic solvent.
It is further preferred that including following component in paint vehicle according to mass fraction: 44 parts of styrene-acrylic emulsion, acrylic emulsion
17 parts, 23 parts of hydrophobically modified filler, 5.8 parts of pigments and fillers, 10 parts of dimethyl silicone polymer, 3.5 parts of nano zine oxide, nano-silica
Change 2.5 parts of titanium, 1.9 parts of thickener, 1.8 parts of ultraviolet absorbing agent, 0.9 part of levelling agent, 1.3 parts of defoaming agent, 8 parts of organic solvent.
In the present invention, inorganic filler used in hydrophobically modified filler preparation process includes kaolin, talcum powder, lightweight carbon
Sour calcium and Alpha-alumina, four mass ratio are 8:5:2:1.
Preferably, the material fineness of inorganic filler is 5-15 μm.
Preferably, defoaming agent is organic silicon defoamer.
Preferably, levelling agent selects one of the general solid levelling agent of model RB503, RB504 and RB505.
Preferably, ultraviolet absorbing agent is septichen phenyl ester or ESCALOL 567.
Wherein, organic solvent is isopropanol, ethylene glycol or butyl acetate.
The preparation method of rust-proof top-coat provided by the invention includes the following steps:
According to mass fraction, hydrophobically modified filler, pigments and fillers, nano zine oxide, nano-titanium dioxide are put into mixing
In machine, it is sufficiently stirred and is pre-mixed uniformly, obtain mixed fillers, styrene-acrylic emulsion, acrylic emulsion are then added to Scattered Kettle
In, it is heated to 40-45 DEG C, and be uniformly mixed with the revolving speed of 300-350r/min stirring 5-8min to lotion；By poly dimethyl silicon
The mixed solution of oxygen alkane and organic solvent is added in lotion, is continued decentralized processing 2-3min with identical revolving speed, then will be mixed
It closes filler, thickener, ultraviolet absorbing agent, levelling agent and defoaming agent to be added in Scattered Kettle, be mixed with lotion, then with 600-
The revolving speed of 650r/min handles 15-20min to material dispersion, after dispersion, detects simultaneously sealed package, obtains required antirust face
Paint.
The present invention have it is following the utility model has the advantages that
The type rust-proof top-coat is prepared by polymer emulsion, inorganic filler and multiple functions auxiliary agent, wherein polymer cream
Liquid selects the mixed emulsion of acrylic emulsion and styrene-acrylic emulsion that can both guarantee to paint by the way that two kinds of lotions are carried out collocation use
The overall performance of material, and can suitably reduce the cost of paint vehicle.
Make the type of inorganic filler more in paint vehicle, wherein most important filler component include kaolin, it is talcum powder, light
Matter calcium carbonate and Alpha-alumina, these filler components have weatherability strong, and hardness is high, the preferable feature of dispersibility, inorganic filler
It is also handled by the hydrophobically modified of special process, hydrophobic modifier used in the treatment process is using specific hydrophobic substance
Trimethoxy-benzene dimethoxym ethane-trihydroxy ethane acetal molecule, by specific technique by the hydrophobic group of the molecule contained
It is linked in s-triazine hydrophobic modifier, so that obtaining one kind has superpower hydrophobic substance, using the substance as thin
Water modifying agent carries out that surface is modified to inorganic filler so that the inorganic filler in antirust paint vehicle have it is very outstanding hydrophobic
Performance, the water resistance of the final antirust paint vehicle for improving preparation.In addition, by the modified inorganic filler of surface hydrophobicity with polymerize
Interface compatibility between object lotion is also improved, and synergistic effect is generated between dimethyl silicone polymer, so that paint vehicle
In inorganic filler do not allow to be also easy to produce coalescence and settlement action in paint vehicle, extend the period of storage of paint vehicle.
Hydrophobically modified inorganic filler and nano zine oxide, nano-titanium dioxide are super fine substance in the type paint vehicle,
The property of this material makes the property of antirust paint vehicle highly uniform, and film-forming quality is higher, obtains the structure of protective coating also phase
To close, the hardness and strength of film layer are higher, and impact resistance is preferable, and suitably reduce the curing time of paint vehicle.Nanometer
The use of zinc oxide and nano-titanium dioxide also improves the anti-microbial property and corrosion resistance of coating.
It include levelling agent, thickener and defoaming agent etc. in function additive in paint vehicle, paint vehicle can be improved in these auxiliary agents
Film-formation result, so that the surface protection coating stable and uniform formed, to improve the intensity of coating；Ultraviolet radiation absorption in paint vehicle
The anti-aging property and radiation resistance of paint layer can be improved in agent, extends the service life of paint vehicle.
Specific embodiment
Below with reference to embodiment, further description of the specific embodiments of the present invention, and following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
A kind of construction steel structure rust-proof top-coat includes following component: styrene-acrylic emulsion 40 in the paint vehicle according to mass fraction
Part, 15 parts of acrylic emulsion, 20 parts of hydrophobically modified filler, 5 parts of pigments and fillers, 7 parts of dimethyl silicone polymer, 2 parts of nano zine oxide,
2 parts of nano-titanium dioxide, 1.2 parts of thickener, 1.6 parts of ultraviolet absorbing agent, 0.7 part of levelling agent, 1.1 parts of defoaming agent, You Jirong
6 parts of agent；
Wherein, the preparation method of the hydrophobically modified filler includes the following steps:
(1) by the 1 of 65.5g, 1,1- trihydroxy ethane, the p-methyl benzenesulfonic acid of 5.3g is added to the tetrahydrofuran solvent of 1L
In, mixture is in a kettle with 45 DEG C of temperature heating and stirring and dissolving；Then the 2,4,6- of 35.2g is added into reaction kettle
The 4A type zeolite catalyst of trimethoxybenzaldehyde and 55g, reacts 6h with 53 DEG C of temperature, is added 52g's into product
Triethylamine and 100g dichloromethane solvent, sufficiently dilution dissolution, are then filtered product, filtrate is anti-through phosphate buffer
After multiple extraction, white form of solid object is obtained after organic phase is evaporated under reduced pressure and is dried in vacuo；
(2) 10g white form of solid object is dissolved in the methylene chloride of 300ml, is filled with nitrogen into the reaction kettle where solution
Then 23.5g triethylamine, 6.2g pyridine and 15.8g p-nitrophenyl chloroformate ester are added to reaction kettle as protective atmosphere by gas
In, and 15g4A type zeolite catalyst is added, with 35 DEG C of thermotonus 8h, product is added in the anhydrous ether of 1L and is dissolved
Dilution, obtains filtrate after filtering, filter vacuum is dried, obtain the grafting compound of required hydrophobically modified；
(3) 0.5L dioxane solvent is added in reaction kettle, and is filled with nitrogen as protective atmosphere, then by 15g
The grafting that upper step obtains is added in reaction kettle with compound sufficiently dissolves, and then adds 4g melamine and 12g potassium carbonate
Enter and be sufficiently mixed into reaction kettle, mixture 0-3 DEG C at a temperature of react 1.5h, then raise the temperature to 35 DEG C and continue back
Stream reaction 15h, adds 4g aminomethyl trimethyl silane after the reaction was completed, continues back flow reaction 4h, by product through being evaporated under reduced pressure
After remove organic solvent, with deionized water and petroleum ether circulation washing 2 times, obtain required hydrophobic modifier；
(4) 15g hydrophobic modifier, 3g titanate coupling agent are added in 1L petroleum ether solvent, are sufficiently stirred to obtain molten
Then 5kg inorganic filler is added in solution by liquid, be heated to 65 DEG C, is stirred to react 30min with the revolving speed of 400r/min, so
Mixture is filtered afterwards, solid content is dried to obtain required hydrophobically modified filler.
In the present embodiment, inorganic filler used in hydrophobically modified filler preparation process includes kaolin, talcum powder, lightweight
Calcium carbonate and Alpha-alumina, four mass ratio are 8:5:2:1.
The material fineness of inorganic filler is 5-15 μm.
Defoaming agent is organic silicon defoamer.
The general solid levelling agent of levelling agent selection model RB503.
Ultraviolet absorbing agent is septichen phenyl ester.
Organic solvent is isopropanol.
The preparation method of rust-proof top-coat provided in this embodiment includes the following steps:
According to mass fraction, hydrophobically modified filler, pigments and fillers, nano zine oxide, nano-titanium dioxide are put into mixing
In machine, it is sufficiently stirred and is pre-mixed uniformly, obtain mixed fillers, styrene-acrylic emulsion, acrylic emulsion are then added to Scattered Kettle
In, 40 DEG C are heated to, and be uniformly mixed with the revolving speed of 300r/min stirring 5min to lotion；By dimethyl silicone polymer and organic
The mixed solution of solvent is added in lotion, continues decentralized processing 2min with identical revolving speed, then by mixed fillers, thickening
Agent, ultraviolet absorbing agent, levelling agent and defoaming agent are added in Scattered Kettle, are mixed with lotion, then with the revolving speed pair of 600r/min
Material dispersion handles 15min, after dispersion, detects simultaneously sealed package, obtains required rust-proof top-coat.
Embodiment 2
A kind of construction steel structure rust-proof top-coat includes following component: styrene-acrylic emulsion 50 in the paint vehicle according to mass fraction
Part, 18 parts of acrylic emulsion, 25 parts of hydrophobically modified filler, 7 parts of pigments and fillers, 13 parts of dimethyl silicone polymer, nano zine oxide 5
Part, it is 3 parts of nano-titanium dioxide, 2.5 parts of thickener, 2.2 parts of ultraviolet absorbing agent, 1.1 parts of levelling agent, 1.5 parts of defoaming agent, organic
10 parts of solvent；
Wherein, the preparation method of the hydrophobically modified filler includes the following steps:
(1) by the 1 of 65.5g, 1,1- trihydroxy ethane, the p-methyl benzenesulfonic acid of 5.3g is added to the tetrahydrofuran solvent of 1L
In, mixture is in a kettle with 50 DEG C of temperature heating and stirring and dissolving；Then the 2,4,6- of 35.2g is added into reaction kettle
The 4A type zeolite catalyst of trimethoxybenzaldehyde and 55g, reacts 8h with 55 DEG C of temperature, is added 52g's into product
Triethylamine and 100g dichloromethane solvent, sufficiently dilution dissolution, are then filtered product, filtrate is anti-through phosphate buffer
After multiple extraction, white form of solid object is obtained after organic phase is evaporated under reduced pressure and is dried in vacuo；
(2) 10g white form of solid object is dissolved in the methylene chloride of 300ml, is filled with nitrogen into the reaction kettle where solution
Then 23.5g triethylamine, 6.2g pyridine and 15.8g p-nitrophenyl chloroformate ester are added to reaction kettle as protective atmosphere by gas
In, and 15g4A type zeolite catalyst is added, with 40 DEG C of thermotonus 10h, product is added in the anhydrous ether of 1L and is dissolved
Dilution, obtains filtrate after filtering, filter vacuum is dried, obtain the grafting compound of required hydrophobically modified；
(3) 0.5L dioxane solvent is added in reaction kettle, and is filled with nitrogen as protective atmosphere, then by 15g
The grafting that upper step obtains is added in reaction kettle with compound sufficiently dissolves, and then adds 4g melamine and 12g potassium carbonate
Enter and be sufficiently mixed into reaction kettle, mixture 3 DEG C at a temperature of react 2h, then raising the temperature to 40 DEG C, to continue reflux anti-
18h is answered, adds 4g aminomethyl trimethyl silane after the reaction was completed, continues back flow reaction 5h, product is gone after being evaporated under reduced pressure
Except organic solvent, is washed 4 times with deionized water and petroleum ether circulation, obtain required hydrophobic modifier；
(4) 15g hydrophobic modifier, 3g titanate coupling agent are added in 1L petroleum ether solvent, are sufficiently stirred to obtain molten
Then 5kg inorganic filler is added in solution by liquid, be heated to 70 DEG C, is stirred to react 50min with the revolving speed of 450r/min, so
Mixture is filtered afterwards, solid content is dried to obtain required hydrophobically modified filler.
In the present embodiment, inorganic filler used in hydrophobically modified filler preparation process includes kaolin, talcum powder, lightweight
Calcium carbonate and Alpha-alumina, four mass ratio are 8:5:2:1.
The material fineness of inorganic filler is 5-15 μm.
Defoaming agent is organic silicon defoamer.
The general solid levelling agent of levelling agent selection model RB504.
Ultraviolet absorbing agent is ESCALOL 567.
Organic solvent is ethylene glycol.
The preparation method of rust-proof top-coat provided in this embodiment includes the following steps:
According to mass fraction, hydrophobically modified filler, pigments and fillers, nano zine oxide, nano-titanium dioxide are put into mixing
In machine, it is sufficiently stirred and is pre-mixed uniformly, obtain mixed fillers, styrene-acrylic emulsion, acrylic emulsion are then added to Scattered Kettle
In, 45 DEG C are heated to, and be uniformly mixed with the revolving speed of 350r/min stirring 8min to lotion；By dimethyl silicone polymer and organic
The mixed solution of solvent is added in lotion, continues decentralized processing 3min with identical revolving speed, then by mixed fillers, thickening
Agent, ultraviolet absorbing agent, levelling agent and defoaming agent are added in Scattered Kettle, are mixed with lotion, then with the revolving speed pair of 650r/min
Material dispersion handles 20min, after dispersion, detects simultaneously sealed package, obtains required rust-proof top-coat.
Embodiment 3
A kind of construction steel structure rust-proof top-coat includes following component: styrene-acrylic emulsion 44 in the paint vehicle according to mass fraction
Part, 17 parts of acrylic emulsion, 23 parts of hydrophobically modified filler, 5.8 parts of pigments and fillers, 10 parts of dimethyl silicone polymer, nano zine oxide
3.5 parts, 2.5 parts of nano-titanium dioxide, 1.9 parts of thickener, 1.8 parts of ultraviolet absorbing agent, 0.9 part of levelling agent, defoaming agent 1.3
Part, 8 parts of organic solvent；
Wherein, the preparation method of the hydrophobically modified filler includes the following steps:
(1) by the 1 of 65.5g, 1,1- trihydroxy ethane, the p-methyl benzenesulfonic acid of 5.3g is added to the tetrahydrofuran solvent of 1L
In, mixture is in a kettle with 47 DEG C of temperature heating and stirring and dissolving；Then the 2,4,6- of 35.2g is added into reaction kettle
The 4A type zeolite catalyst of trimethoxybenzaldehyde and 55g, reacts 7h with 54 DEG C of temperature, is added 52g's into product
Triethylamine and 100g dichloromethane solvent, sufficiently dilution dissolution, are then filtered product, filtrate is anti-through phosphate buffer
After multiple extraction, white form of solid object is obtained after organic phase is evaporated under reduced pressure and is dried in vacuo；
(2) 10g white form of solid object is dissolved in the methylene chloride of 300ml, is filled with nitrogen into the reaction kettle where solution
Then 23.5g triethylamine, 6.2g pyridine and 15.8g p-nitrophenyl chloroformate ester are added to reaction kettle as protective atmosphere by gas
In, and 15g4A type zeolite catalyst is added, with 38 DEG C of thermotonus 9h, product is added in the anhydrous ether of 1L and is dissolved
Dilution, obtains filtrate after filtering, filter vacuum is dried, obtain the grafting compound of required hydrophobically modified；
(3) 0.5L dioxane solvent is added in reaction kettle, and is filled with nitrogen as protective atmosphere, then by 15g
The grafting that upper step obtains is added in reaction kettle with compound sufficiently dissolves, and then adds 4g melamine and 12g potassium carbonate
Enter and be sufficiently mixed into reaction kettle, mixture 2 DEG C at a temperature of react 1.8h, then raise the temperature to 37 DEG C and continue to flow back
17h is reacted, adds 4g aminomethyl trimethyl silane after the reaction was completed, continues back flow reaction 4.5h, by product through being evaporated under reduced pressure
After remove organic solvent, with deionized water and petroleum ether circulation washing 3 times, obtain required hydrophobic modifier；
(4) 15g hydrophobic modifier, 3g titanate coupling agent are added in 1L petroleum ether solvent, are sufficiently stirred to obtain molten
Then 5kg inorganic filler is added in solution by liquid, be heated to 68 DEG C, is stirred to react 40min with the revolving speed of 430r/min, so
Mixture is filtered afterwards, solid content is dried to obtain required hydrophobically modified filler.
In the present embodiment, inorganic filler used in hydrophobically modified filler preparation process includes kaolin, talcum powder, lightweight
Calcium carbonate and Alpha-alumina, four mass ratio are 8:5:2:1.
The material fineness of inorganic filler is 5-15 μm.
Defoaming agent is organic silicon defoamer.
The general solid levelling agent of levelling agent selection model RB505.
Ultraviolet absorbing agent is septichen phenyl ester.
Organic solvent is butyl acetate.
The preparation method of rust-proof top-coat provided in this embodiment includes the following steps:
According to mass fraction, hydrophobically modified filler, pigments and fillers, nano zine oxide, nano-titanium dioxide are put into mixing
In machine, it is sufficiently stirred and is pre-mixed uniformly, obtain mixed fillers, styrene-acrylic emulsion, acrylic emulsion are then added to Scattered Kettle
In, 43 DEG C are heated to, and be uniformly mixed with the revolving speed of 330r/min stirring 7min to lotion；By dimethyl silicone polymer and organic
The mixed solution of solvent is added in lotion, continues decentralized processing 2.5min with identical revolving speed, then by mixed fillers, thickening
Agent, ultraviolet absorbing agent, levelling agent and defoaming agent are added in Scattered Kettle, are mixed with lotion, then with the revolving speed pair of 620r/min
Material dispersion handles 17min, after dispersion, detects simultaneously sealed package, obtains required rust-proof top-coat.
Performance test
According to GB/T6748-2008 " Antirust paint for ship ", HG/T3668-2009 " zinc rich primer ", GB/T1733-1993
" water-resistant coating detection ", etc. experimental test procedures in national standards, to the adhesive force intensity of rust-proof top-coat in the present embodiment,
Water resistance, salt spray resistance, flexibility, impact resistance, hardness of paint film are tested, and water resistance carries out 20 respectively,
40, coating condition was observed in submerging test on the 60th；Wherein, " the prosperous board of good fortune " the board acrylic acid anti-corrosion that setting is bought in the market applies
Material as a control group, carries out performance comparison test, and obtained test data is as follows:
Table 1: the performance test results of rust-proof top-coat in the present embodiment
It analyzes above test result and finds rust-proof top-coat provided by the invention, there is very outstanding adhesive force, corrosion-resistant
The flexibility of performance, film strength and impact resistance, coating is preferable, and has quick-drying performance.Most important feature is the type
The water resistance of paint vehicle is very outstanding, water-fast can be up to 60, and will not occur cracking and obscission, the performance it is far good
In Acrylic Anticorrosive Coatings conventional in the market.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of construction steel structure rust-proof top-coat, it is characterised in that: include such as the following group in the paint vehicle according to mass fraction
Point: 40-50 parts of styrene-acrylic emulsion, 15-18 parts of acrylic emulsion, 20-25 parts of hydrophobically modified filler, 5-7 parts of pigments and fillers, poly dimethyl
7-13 parts of siloxanes, 2-5 parts of nano zine oxide, 2-3 parts of nano-titanium dioxide, 1.2-2.5 parts of thickener, ultraviolet absorbing agent
1.6-2.2 parts, 0.7-1.1 parts of levelling agent, 1.1-1.5 parts of defoaming agent, 6-10 parts of organic solvent；
Wherein, the preparation method of the hydrophobically modified filler includes the following steps:
(1) by the 1 of 65.5g, 1,1- trihydroxy ethane, the p-methyl benzenesulfonic acid of 5.3g is added in the tetrahydrofuran solvent of 1L,
Mixture is in a kettle with 45-50 DEG C of temperature heating and stirring and dissolving；Then the 2,4,6- of 35.2g is added into reaction kettle
The 4A type zeolite catalyst of trimethoxybenzaldehyde and 55g reacts 6-8h with 53-55 DEG C of temperature, is added into product
The triethylamine and 100g dichloromethane solvent of 52g, sufficiently dilution dissolution, is then filtered product, and filtrate is slow through phosphate
After fliud flushing extracts repeatedly, white form of solid object is obtained after organic phase is evaporated under reduced pressure and is dried in vacuo；
(2) 10g white form of solid object is dissolved in the methylene chloride of 300ml, nitrogen work is filled with into the reaction kettle where solution
For protective atmosphere, then 23.5g triethylamine, 6.2g pyridine and 15.8g p-nitrophenyl chloroformate ester are added in reaction kettle, and
15g4A type zeolite catalyst is added product is added in the anhydrous ether of 1L and is dissolved with 35-40 DEG C of thermotonus 8-10h
Dilution, obtains filtrate after filtering, filter vacuum is dried, obtain the grafting compound of required hydrophobically modified；
(3) 0.5L dioxane solvent is added in reaction kettle, and is filled with nitrogen as protective atmosphere, then will walked on 15g
Suddenly the grafting obtained is added in reaction kettle with compound sufficiently dissolves, and is then added to 4g melamine and 12g potassium carbonate
Be sufficiently mixed in reaction kettle, mixture 0-3 DEG C at a temperature of react 1.5-2h, then raise the temperature to 35-40 DEG C of continuation
Back flow reaction 15-18h adds 4g aminomethyl trimethyl silane after the reaction was completed, continues back flow reaction 4-5h, by product through subtracting
Organic solvent is removed after pressure distillation, is washed 2-4 times with deionized water and petroleum ether circulation, obtains required hydrophobic modifier；
(4) 15g hydrophobic modifier, 3g titanate coupling agent are added in 1L petroleum ether solvent, are sufficiently stirred to obtain solution, so
5kg inorganic filler is added in solution afterwards, is heated to 65-70 DEG C, 30- is stirred to react with the revolving speed of 400-450r/min
Then 50min filters mixture, solid content is dried to obtain required hydrophobically modified filler.
2. a kind of construction steel structure rust-proof top-coat according to claim 1, it is characterised in that: according to mass fraction, institute
Stating includes following component in paint vehicle: 43-45 parts of styrene-acrylic emulsion, 16-17 parts of acrylic emulsion, and 22-24 parts of hydrophobically modified filler, face
5.5-6 parts of filler, 8-11 parts of dimethyl silicone polymer, 3-4 parts of nano zine oxide, 2.4-2.8 parts of nano-titanium dioxide, thickener
1.7-2.2 parts, 1.7-1.9 parts of ultraviolet absorbing agent, 0.8-1.0 parts of levelling agent, 1.2-1.4 parts of defoaming agent, organic solvent 8-9
Part.
3. a kind of construction steel structure rust-proof top-coat according to claim 2, it is characterised in that: according to mass fraction, institute
Stating includes following component in paint vehicle: 44 parts of styrene-acrylic emulsion, 17 parts of acrylic emulsion, and 23 parts of hydrophobically modified filler, pigments and fillers 5.8
Part, 10 parts of dimethyl silicone polymer, 3.5 parts of nano zine oxide, 2.5 parts of nano-titanium dioxide, 1.9 parts of thickener, ultraviolet light is inhaled
Receive 1.8 parts of agent, 0.9 part of levelling agent, 1.3 parts of defoaming agent, 8 parts of organic solvent.
4. a kind of construction steel structure rust-proof top-coat according to claim 1, it is characterised in that: the hydrophobically modified filler
Inorganic filler used in preparation process includes kaolin, talcum powder, precipitated calcium carbonate and Alpha-alumina, and four mass ratio is
8:5:2:1。
5. a kind of construction steel structure rust-proof top-coat according to claim 4, it is characterised in that: the material of the inorganic filler
Expect that fineness is 5-15 μm.
6. a kind of construction steel structure rust-proof top-coat according to claim 1, it is characterised in that: the defoaming agent is organic
Silicon defoaming agent.
7. a kind of construction steel structure rust-proof top-coat according to claim 1, it is characterised in that: the levelling agent selection type
Number be RB503, RB504 and RB505 one of general solid levelling agent.
8. a kind of construction steel structure rust-proof top-coat according to claim 1, it is characterised in that: the ultraviolet absorbing agent
For septichen phenyl ester or ESCALOL 567.
9. a kind of construction steel structure rust-proof top-coat according to claim 1, it is characterised in that: the organic solvent is different
Propyl alcohol, ethylene glycol or butyl acetate.
10. a kind of construction steel structure rust-proof top-coat according to claim 1, it is characterised in that: the rust-proof top-coat
Preparation method includes the following steps:
According to mass fraction, hydrophobically modified filler, pigments and fillers, nano zine oxide, nano-titanium dioxide are put into batch mixer,
It is sufficiently stirred and is pre-mixed uniformly, obtain mixed fillers, then styrene-acrylic emulsion, acrylic emulsion are added in Scattered Kettle, added
Heat is uniformly mixed to 40-45 DEG C, and with the revolving speed of 300-350r/min stirring 5-8min to lotion；By dimethyl silicone polymer and
The mixed solution of organic solvent is added in lotion, with identical revolving speed continue decentralized processing 2-3min, then by mixed fillers,
Thickener, ultraviolet absorbing agent, levelling agent and defoaming agent are added in Scattered Kettle, are mixed with lotion, then with 600-650r/min
Revolving speed to material dispersion handle 15-20min, after dispersion, detect and sealed package, obtain required rust-proof top-coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810723297.2A CN108976925A (en) | 2018-07-04 | 2018-07-04 | A kind of construction steel structure rust-proof top-coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810723297.2A CN108976925A (en) | 2018-07-04 | 2018-07-04 | A kind of construction steel structure rust-proof top-coat |
Publications (1)
| Publication Number | Publication Date |
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| CN108976925A true CN108976925A (en) | 2018-12-11 |
Family
ID=64536098
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810723297.2A Withdrawn CN108976925A (en) | 2018-07-04 | 2018-07-04 | A kind of construction steel structure rust-proof top-coat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756235A (en) * | 2020-12-25 | 2021-05-07 | 常熟市佳德汽车零部件有限公司 | Surface hardening spraying method for protecting cover of accelerator pull wire of motorcycle |
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|---|---|---|---|---|
| CN101974273A (en) * | 2010-10-09 | 2011-02-16 | 广州市枫源化工有限公司 | Exterior wall coating and preparation method thereof |
| CN106433364A (en) * | 2016-09-22 | 2017-02-22 | 南开大学 | Superhydrophobicity coating based on waterborne emulsion and preparing method and application thereof |
| CN107236448A (en) * | 2017-07-25 | 2017-10-10 | 合肥嘉仕诚能源科技有限公司 | A kind of organic nano water-repellent paint |
-
2018
- 2018-07-04 CN CN201810723297.2A patent/CN108976925A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974273A (en) * | 2010-10-09 | 2011-02-16 | 广州市枫源化工有限公司 | Exterior wall coating and preparation method thereof |
| CN106433364A (en) * | 2016-09-22 | 2017-02-22 | 南开大学 | Superhydrophobicity coating based on waterborne emulsion and preparing method and application thereof |
| CN107236448A (en) * | 2017-07-25 | 2017-10-10 | 合肥嘉仕诚能源科技有限公司 | A kind of organic nano water-repellent paint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756235A (en) * | 2020-12-25 | 2021-05-07 | 常熟市佳德汽车零部件有限公司 | Surface hardening spraying method for protecting cover of accelerator pull wire of motorcycle |
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