CN107216697A - A kind of kirsite anticorrosive coating - Google Patents
A kind of kirsite anticorrosive coating Download PDFInfo
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- CN107216697A CN107216697A CN201710441226.9A CN201710441226A CN107216697A CN 107216697 A CN107216697 A CN 107216697A CN 201710441226 A CN201710441226 A CN 201710441226A CN 107216697 A CN107216697 A CN 107216697A
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
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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
- 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
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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
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
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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
- 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
- C08K2003/0812—Aluminium
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention discloses a kind of kirsite anticorrosive coating, its raw material includes anticorrosion binding resin and zinc-aluminium magnesium alloy powder；The mass percent of the zinc-aluminium magnesium alloy powder is 35~85%.The anticorrosion binding resin is inorganic silicic acid salt resin, or alcohol resinoid, or epoxy resin, or aqueous epoxy resins one kind；Wherein, inorganic silicic acid salt resin includes potassium silicate or lithium metasilicate resin.The zinc-aluminium magnesium alloy powder according to mass percent, consisting of：4.5~12.5% Al, 1.5~4.5% Mg, 0.0~0.2% Ce or La, 0.0~1.0% In or Bi, surplus is Zn；The particle diameter of the zinc-aluminium magnesium alloy powder is 0.1~45 μm.The magnesium alloy anticorrosion coating containing zinc-aluminium of the present invention, realizes that the coating rich in zinc-aluminium magnesium alloy powder carries out long life anti corrosion protection to steel, possesses electrode potential more more negative than zinc-rich paint, more permanent anticorrosion performance.
Description
Technical field
The invention belongs to anticorrosive coating manufacturing technology and anticorrosion of steel structure engineer applied field, and in particular to steel construction is prevented
Corrosion technology, is mainly used in Steel Bridge, terminal facilities, petroleum installation, hydraulic facility, chemical industry equipment, ship, plant equipment etc. each
The anti-corrosion coating of class steel construction and application etc..
Background technology
Zinc rich primer is because with sacrificial anode, shielding isolation, passivation corrosion inhibitive function, by most attention, it is all kinds of to improving
Steel structure anti-corrosion service life under environmental condition plays irreplaceable effect.With advances in technology, industrial circle pair
Steel structure anti-corrosion service life wishes more permanent.
Highly filled zinc-rich paint, zinc powder and bonding agent is dispersed or dissolved in the coating in solvent, organic respectively
Zinc-rich paint and inorganic zinc coating, organic resin is using HMW such as epoxy resin, and inorganic resin is mainly high mode
Silicate resin, the solids content of its zinc-rich paint is up to more than 65%.
Develop zinc flake substitution spherical zinc powder, improve the screening ability of zinc-rich paint.Added in zinc-rich paint a small amount of
Aluminium powder, 30~60 parts of zinc flakes, bimetallic anticorrosions of 1~5 part of flake aluminum described in Chinese patent CN105542621A are applied
Material.
Commercial Dyclo paint, the zinc-aluminum film for adding the compositions such as zinc flake, flake aluminum, chromic anhydride using inorganic resin is applied
Material, its decay resistance is better than zinc-rich paint, or develops the zinc-enriched aluminum paint of Chrome-free, heating cure or cold curing；But it is another
On the one hand its supporting intermediate coat and overcoatability are poor, it is impossible to obtain the outer layer good with zinc-rich bottom layer of aluminum coating adhesion energy
Coating.
Zinc-rich paint it is good be to steel protective value key zinc powder sacrificial anode characteristic, it is also to carry that zinc powder, which is improved,
The approach of high zinc-rich paint corrosion resistance.The zinc powder of sacrificial anode is improved, zinc powder high activity is kept, while itself oxygen
Change degree is low and low, the high current potential driving force of corrosion rate is the emphasis studied containing spelter coating, such as develops superfine nano zinc powder, surpasses
Pure zinc powder, and the zinc-rich paint of the zinc powder composition of multicomponent alloy element is added, Chinese patent CN103817339B inventions are high-purity
The antirusting paint of nano zinc powder, Chinese patent CN102719118B inventions cerium containing Rare Earth Lanthanum and kirsite, is intended to improvement and contains zinc
The Corrosion Protection of coating.
But, considered based on environmental pollution control, human body health, coating cost, one kind of the present invention contains
The primer base of zinc-aluminum-magnesium eutectic alloy powder, compared with zinc-rich paint, with high electronegativity, low self-corrosion speed, high negative electrode
Protective efficacy.Inventor has applied for zinc-aluminium magnesium alloy powder and its manufacture method in patent of invention CN201610860660.6,
The present invention is to prepare zinc-bearing alloy anticorrosive coating with zinc-aluminium magnesium alloy powder.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of low self-corrosion speed, high cathodic protection effect
The anticorrosion primer base of sacrificial magnesium alloy anode containing zinc-aluminium of fruit.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of kirsite anticorrosive coating, its raw material includes anticorrosion binding resin and zinc-aluminium magnesium alloy powder.
The mass percent of the zinc-aluminium magnesium alloy powder is 35~85%.
The anticorrosion binding resin is inorganic silicic acid salt resin, alcohol resinoid, epoxy resin or aqueous epoxy resins
It is a kind of；Wherein, inorganic silicic acid salt resin includes potassium silicate, lithium metasilicate.
The zinc-aluminium magnesium alloy powder according to mass percent, consisting of：4.5~12.5% Al, 1.5~4.5%
Mg, 0.0~0.2% Ce or La, 0.0~1.0% In or Bi, surplus is Zn；The particle diameter of the zinc-aluminium magnesium alloy powder
For 0.1~45 μm.
The kirsite anticorrosive coating is aqueous silicate magnesium alloy containing zinc-aluminium primer base, and it is by the first and second two components
Composition：First component is the lithium metasilicate or potassium silicate aqueous solution of modulus 2.0~5.5, and component B is zinc-aluminium magnesium alloy powder；First and second groups
Part stirring is mixed as aqueous silicate magnesium alloy containing zinc-aluminium primer base, and wherein zinc-aluminium magnesium alloy powder accounts for the matter of gross mass
It is 35~85% to measure percentage；
According to mass percent, the composition of the lithium metasilicate or potassium silicate aqueous solution is：10~40% lithium metasilicate or silicon
Sour potassium, 20~35% Ludox, 8~18% silane, 20~40% distilled water and 0.5%~1.5% auxiliary agent composition,
The auxiliary agent is one or more mixing of bentonite, graphite or thin methylcellulose.
The kirsite anticorrosive coating is alcohol-soluble magnesium alloy containing zinc-aluminium primer base, and it is by zinc-aluminum-magnesium alloyed powder slurry
With curing agent according to mass ratio be 1:0.5~1.0 mixes；
According to mass percent, the composition of the zinc-aluminum-magnesium alloyed powder slurry is：Polyvinyl butyral resin 1.5~5.0%,
Alcohols solvent 15~40%, auxiliary agent 0.5~5%, zinc-aluminium magnesium alloy powder 35~75%；The alcohols solvent is butanol, isopropyl
One or more mixing of alcohol or propylene glycol monomethyl ether, the auxiliary agent be bentonite, one kind of graphite or thin methylcellulose or
A variety of mixing；
According to mass percent, the composition of the curing agent is：Tetraethyl orthosilicate 30~50%, mass concentration is 36.5%
Concentrated hydrochloric acid 0.9~1.3%, distilled water 5~10%, alcohols solvent 40~60%；The alcohols solvent be n-butanol, butanol,
One or more mixing of isopropanol or butyl glycol ether.
The kirsite anticorrosive coating is epoxy magnesium alloy containing zinc-aluminium primer base, and it is made up of the first and second two components,
Wherein：
According to mass percent, first component by molecular weight be more than 800 bisphenol A epoxide resin or modified epoxy 5~
35%, zinc-aluminium magnesium alloy powder 45~80%, talcum powder 0.5~3.0%, organobentonite 0.05~1.0%, polysiloxanes
0.1~2.0%, adjacent dibutyl carboxylic acid 0.06~1.0%, mixed solvent 10~15% are constituted；The mixed solvent is acetone
With dimethylbenzene butanol according to mass ratio 7:3 mixed liquor；
According to mass percent, component B by epoxy polyamide curing agent 70~90%, dibutyl phthalate 2~
9%, triethanolamine 0.05~2.5%, silane coupler 0.05~2.0%, mixed solvent 5~20% is constituted；The mixing is molten
Agent is acetone and dimethylbenzene butanol according to mass ratio 7:3 mixed liquor；
First and second components in mass ratio 4~6:1 is mixed into epoxy magnesium alloy containing zinc-aluminium primer base.
The kirsite anticorrosive coating is water-base epoxy magnesium alloy containing zinc-aluminium primer base, and it is by the first and second two component groups
Into, wherein：
According to mass percent, first component by aqueous epoxy resin curing agent 16~30%, zinc-aluminium magnesium alloy powder 42~
72%, ferrophosphorus powder 4~18%, polysiloxanes or itself and polyethylene glycol mixture 0.1~2.5%, alumina silicate and magnesium silicate mixing
Thing 0.1~2.5%, propylene glycol monomethyl ether or with isopropanol mixture 1~8% constitute；
Second component is aqueous epoxy resins；
First and second components in mass ratio 2~5:1 is mixed into water-base epoxy magnesium alloy containing zinc-aluminium primer base.
The coating of magnesium alloy coating containing zinc-aluminium used in the present invention is≤- 900mv in the electrode potential of the 3.5%NaCl aqueous solution
(SCE), the μ A/cm of corrosion electric current density≤22。
The beneficial effects of the invention are as follows：The kirsite anticorrosive coating of the present invention, realizes and is applied rich in zinc-aluminium magnesium alloy powder
Expect to protect the long life anti corrosion of steel, possess electrode potential more more negative than zinc-rich paint, more permanent anticorrosion performance.
Embodiment
The present invention is further described with reference to specific embodiment.
Embodiment 1-5 is aqueous silicate magnesium alloy containing zinc-aluminium primer base.
Embodiment 1：Aqueous silicate magnesium alloy containing zinc-aluminium primer base.First component is lithium silicate aqueous solution, and its modulus is
2.5, according to mass percent, consisting of：Lithium metasilicate 20%, the Ludox of mass concentration 30% of mass concentration 30%
31%th, silane 14%, distilled water 34% and bentonite 1%；Second component is zinc-aluminium magnesium alloy powder, according to mass percent, is closed
Golden composition is 6.02% Al, 3.1% Mg, 0.1% Ce, 0.1% In, and surplus is Zn, 3.92 μm of powder size.First
Second components by weight is 30：70.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
1000mv (SCE), the μ A/cm of corrosion electric current density≤1.52。
Embodiment 2：Aqueous silicate magnesium alloy containing zinc-aluminium primer base.First component is potassium silicate aqueous solution, and its modulus is
5.0, according to mass percent, consisting of：Potassium silicate 17%, the Ludox of mass concentration 30% of mass concentration 15%
35%th, silane 17%, distilled water 30%, graphite 0.5% and thin methylcellulose 0.5%；Second component is zinc-aluminium magnesium alloy powder,
According to mass percent, alloying component is 6.02% Al, and 3.1% Mg, 0.1% Ce, 0.1% In, surplus are Zn, powder
Last 3.92 μm of granularity.First and second weight ratios are 38.5：61.5.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
990mv (SCE), the μ A/cm of corrosion electric current density≤1.32。
Embodiment 3：Aqueous silicate magnesium alloy containing zinc-aluminium primer base.First component is lithium silicate aqueous solution, and its modulus is
5.5, according to mass percent, consisting of：Lithium metasilicate 10%, the Ludox of mass concentration 30% of mass concentration 30%
35%th, the mixture 1.5% of silane 18%, distilled water 35.5% and bentonite and graphite；Second component is zinc-aluminium magnesium alloy powder,
According to mass percent, alloying component is 4.5% Al, 4.5% Mg, 0.01% Bi, and surplus is Zn, the μ of powder size 45
m.First and second components by weight are 65：35.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
1000mv (SCE), the μ A/cm of corrosion electric current density≤1.52。
Embodiment 4：Aqueous silicate magnesium alloy containing zinc-aluminium primer base.First component is potassium silicate aqueous solution, and its modulus is
3.8, according to mass percent, consisting of：Potassium silicate 40%, the Ludox of mass concentration 30% of mass concentration 30%
31.5%th, silane 8%, distilled water 20% and thin methylcellulose 0.5%；Second component is zinc-aluminium magnesium alloy powder, according to quality
Percentage, alloying component is 12.5% Al, and 1.5% Mg, 0.2% Ce, 0.02% Bi, surplus are Zn, powder size
0.1μm.First and second components by weight are 15：85.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
990mv (SCE), the μ A/cm of corrosion electric current density≤1.42。
Embodiment 5：Aqueous silicate magnesium alloy containing zinc-aluminium primer base.First component is potassium silicate aqueous solution, and its modulus is
4.2, according to mass percent, consisting of：Potassium silicate 30%, the Ludox of mass concentration 30% of mass concentration 15%
20%th, silane 9%, distilled water 40% and bentonite 1%；Second component is zinc-aluminium magnesium alloy powder, according to mass percent, alloy
Composition is 8% Al, 4.5% Mg, 0.1% La, and surplus is Zn, 8.56 μm of powder size.First and second components by weight are 50：
50。
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
1000mv (SCE), the μ A/cm of corrosion electric current density≤1.52。
Embodiment 6-9 is alcohol-soluble magnesium alloy containing zinc-aluminium primer base.
Embodiment 6：Alcohol-soluble magnesium alloy containing zinc-aluminium primer base.First component is zinc-aluminum-magnesium alloyed powder slurry, consisting of
Polyvinyl butyral resin 1.5%, bentonite 1.5%, alcohols solvent 32%, zinc-aluminium magnesium alloy powder 65%.Wherein, alcohols solvent
It is butanol and propylene glycol monomethyl ether according to mass ratio 10:1 mixture；Zinc-aluminum-magnesium alloying component is 6.02% Al, 3.1%
Mg, 0.1% Ce, 0.1% In, surplus are Zn, 3.92 μm of powder size.Second component is curing agent, consisting of titanium dioxide
The tetraethyl orthosilicate 45% of silicon mass content 28%, the concentrated hydrochloric acid 1.5% of mass concentration 36.5%, distilled water 10%, alcohols is molten
Agent 43.5% is constituted, wherein, alcohols solvent is isopropanol and propylene glycol monomethyl ether according to mass ratio 10:1 mixture.First and second groups
It is 1 to divide weight ratio：0.8.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
950mv (SCE), the μ A/cm of corrosion electric current density≤1.12。
Embodiment 7：Alcohol-soluble magnesium alloy containing zinc-aluminium primer base.First component is zinc-aluminum-magnesium alloyed powder slurry, consisting of
Polyvinyl butyral resin 3%, bentonite 0.5%, alcohols solvent 40%, zinc-aluminum-magnesium alloyed powder 56.5%.Wherein, alcohols solvent is
Isopropanol and butyl glycol ether are according to mass ratio 14:1 mixture；Zinc-aluminum-magnesium alloying component is 10.86% Al, 2.94%
Mg, 0.1% Ce, 0.08% In, surplus is Zn, 3.92 μm of powder size.Second component is curing agent, consisting of dioxy
The tetraethyl orthosilicate 50% of SiClx mass content 28%, the concentrated hydrochloric acid 2% of mass concentration 36.5%, distilled water 8%, alcohols solvent
40% composition, wherein, alcohols solvent is n-butanol and butyl glycol ether according to mass ratio 14:1 mixture.First and second component weights
Amount is than being 1：0.6.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
960mv (SCE), the μ A/cm of corrosion electric current density≤1.22。
Embodiment 8：Alcohol-soluble magnesium alloy containing zinc-aluminium primer base.First component is zinc-aluminum-magnesium alloyed powder slurry, consisting of
Polyvinyl butyral resin 5%, bentonite 5%, alcohols solvent 15%, zinc-aluminum-magnesium alloyed powder 75%.Wherein, alcohols solvent is isopropyl
Alcohol；Zinc-aluminum-magnesium alloying component is 10.86% Al, and 2.94% Mg, 0.1% Ce, 0.08% In, surplus are Zn, powder
3.92 μm of granularity.Second component is curing agent, consisting of the tetraethyl orthosilicate 34.1% of silica quality content 28%, quality
The concentrated hydrochloric acid 0.9% of concentration 36.5%, distilled water 5%, alcohols solvent 60% is constituted, wherein, alcohols solvent is n-butanol.First and second
Components by weight is 1：0.5.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
950mv (SCE), the μ A/cm of corrosion electric current density≤1.22。
Embodiment 9：Alcohol-soluble magnesium alloy containing zinc-aluminium primer base.First component is zinc-aluminum-magnesium alloyed powder slurry, consisting of
Polyvinyl butyral resin 5%, bentonite 5%, alcohols solvent 40%, zinc-aluminum-magnesium alloyed powder 50%.Wherein, alcohols solvent is second two
Alcohol butyl ether；Zinc-aluminum-magnesium alloying component is 10.86% Al, 2.94% Mg, 0.1% Ce, and 0.08% In, surplus is Zn,
3.92 μm of powder size.Second component is curing agent, consisting of the tetraethyl orthosilicate 30% of silica quality content 28%, matter
The concentrated hydrochloric acid 1% of concentration 36.5% is measured, distilled water 9%, alcohols solvent 60% is constituted, wherein, alcohols solvent is butyl glycol ether.
First and second components by weight are 1：0.6.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
960mv (SCE), the μ A/cm of corrosion electric current density≤1.12。
Embodiment 10-12 is epoxy magnesium alloy containing zinc-aluminium primer base.
Embodiment 10：Epoxy magnesium alloy containing zinc-aluminium primer base.First component is modified bisphenol A epoxy resin 18%, talcum
Powder 1%, hydroxyl dimethyl silicone polymer 0.8%, bentonite 0.5%, adjacent dibutyl carboxylic acid 1.0%, mixed solvent 13%,
Zinc-aluminium magnesium alloy powder 66.7% is constituted.Zinc-aluminum-magnesium alloying component is 10.86% Al, 2.94% Mg, 0.1% Ce,
0.08% In, surplus is Zn, 3.92 μm of powder size.Component B is epoxy polyamide curing agent 70%, phthalic acid two
Butyl ester 8%, triethanolamine 1.5%, silane coupler 1%, mixed solvent 19.5% is constituted；Wherein, mixed solvent be acetone with
Dimethylbenzene butanol is according to mass ratio 7:3 mixed liquor..First and second components in mass ratio 6:1 is mixed into the painting of epoxy kirsite priming paint
Material.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
900mv (SCE), the μ A/cm of corrosion electric current density≤1.02。
Embodiment 11：Epoxy magnesium alloy containing zinc-aluminium primer base.First component is modified bisphenol A epoxy resin 30%, talcum
Powder 0.5%, hydroxyl dimethyl silicone polymer 0.1%, bentonite 0.05%, adjacent dibutyl carboxylic acid 0.35%, mixed solvent
14%, zinc-aluminium magnesium alloy powder 55% is constituted.Zinc-aluminum-magnesium alloying component is 10.86% Al, 2.94% Mg, 0.1% Ce,
0.08% In, surplus is Zn, 3.92 μm of powder size.Component B is epoxy polyamide curing agent 90%, phthalic acid two
Butyl ester 2%, triethanolamine 2.5%, silane coupler 0.05%, mixed solvent 5.45% is constituted；Wherein, mixed solvent is acetone
With dimethylbenzene butanol according to mass ratio 7:3 mixed liquor.First and second components in mass ratio 5:1 is mixed into the painting of epoxy kirsite priming paint
Material.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
900mv (SCE), the μ A/cm of corrosion electric current density≤1.12。
Embodiment 12：Epoxy magnesium alloy containing zinc-aluminium primer base.First component be modified epoxy 35%, talcum powder 3%,
Hydroxyl dimethyl silicone polymer 2.0%, bentonite 1.0%, adjacent dibutyl carboxylic acid 0.06%, mixed solvent 13.94%, zinc-aluminium
Magnesium alloy powder 45% is constituted.Zinc-aluminum-magnesium alloying component is 10.86% Al, 2.94% Mg, 0.1% Ce, 0.08%
In, surplus is Zn, 3.92 μm of powder size.Component B be epoxy polyamide curing agent 80%, dibutyl phthalate 9%,
Triethanolamine 0.05%, silane coupler 2.0%, mixed solvent 8.95% is constituted；Wherein, mixed solvent is acetone and dimethylbenzene
Butanol is according to mass ratio 7:3 mixed liquor.First and second components in mass ratio 4:1 is mixed into epoxy kirsite primer base.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
910mv (SCE), the μ A/cm of corrosion electric current density≤1.02。
Embodiment 13-15 is water-base epoxy magnesium alloy containing zinc-aluminium primer base.
Embodiment 13：Water-base epoxy magnesium alloy containing zinc-aluminium primer base.First component is aqueous epoxy resin curing agent 16%,
Zinc-aluminium magnesium alloy powder 72%, ferrophosphorus powder 10%, polysiloxanes or itself and polyethylene glycol mixture 0.9%, alumina silicate and silicic acid
Magnesium compound 0.1%, propylene glycol monomethyl ether or is constituted with isopropanol mixture 1%.Zinc-aluminium magnesium alloy powder composition is 6.02%
Al, 3.1% Mg, 0.1% Ce, 0.1% In, surplus are Zn, 3.92 μm of powder size.Second component is aqueous epoxy resins
19%.First, component B mass ratio 4.26:1.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
1100mv (SCE), the μ A/cm of corrosion electric current density≤1.02。
Embodiment 14：Water-base epoxy magnesium alloy containing zinc-aluminium primer base.First component is aqueous epoxy resin curing agent 30%,
Zinc-aluminium magnesium alloy powder 42%, ferrophosphorus powder 18%, polysiloxanes or itself and polyethylene glycol mixture 0.1%, alumina silicate and silicic acid
Magnesium compound 1.9%, propylene glycol monomethyl ether or is constituted with isopropanol mixture 8%.Zinc-aluminium magnesium alloy powder composition is 6.02%
Al, 3.1% Mg, 0.1% Ce, 0.1% In, surplus are Zn, 3.92 μm of powder size.Second component is aqueous epoxy resins
19%.First, component B mass ratio 4.26:1.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
1100mv (SCE), the μ A/cm of corrosion electric current density≤1.12。
Embodiment 15：Water-base epoxy magnesium alloy containing zinc-aluminium primer base.First component is aqueous epoxy resin curing agent 20%,
Zinc-aluminium magnesium alloy powder 66%, ferrophosphorus powder 4%, polysiloxanes or itself and polyethylene glycol mixture 2.5%, alumina silicate and magnesium silicate
Mixture 2.5%, propylene glycol monomethyl ether or is constituted with isopropanol mixture 5%.Zinc-aluminium magnesium alloy powder composition is 6.02% Al,
3.1% Mg, 0.1% Ce, 0.1% In, surplus are Zn, 3.92 μm of powder size.Second component is aqueous epoxy resins
19%.First, component B mass ratio 4.26:1.
Impact resistance >=50kg.cm of the paint coatings, with clean steel adhesion be more than 10Mpa, electrode potential for≤-
1100mv (SCE), the μ A/cm of corrosion electric current density≤1.02。
In the present invention, the kirsite anticorrosive coating shown in above-described embodiment 1-15 is prepared using the method for prior art,
I.e. according to each component content, each raw material components are used in mixed way.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of kirsite anticorrosive coating, it is characterised in that：Its raw material includes anticorrosion binding resin and zinc-aluminum-magnesium alloyed powder
End.
2. kirsite anticorrosive coating according to claim 1, it is characterised in that：The quality of the zinc-aluminium magnesium alloy powder
Percentage is 35~85%.
3. kirsite anticorrosive coating according to claim 1, it is characterised in that：The anticorrosion binding resin is inorganic
One kind of silicate resin, alcohol resinoid, epoxy resin or aqueous epoxy resins；Wherein, inorganic silicic acid salt resin includes silicic acid
Potassium, lithium metasilicate.
4. kirsite anticorrosive coating according to claim 1, it is characterised in that：The zinc-aluminium magnesium alloy powder is according to matter
Percentage is measured, consisting of：4.5~12.5% Al, 1.5~4.5% Mg, 0.0~0.2% Ce or La, 0.0~
1.0% In or Bi, surplus is Zn；The particle diameter of the zinc-aluminium magnesium alloy powder is 0.1~45 μm.
5. according to any described kirsite anticorrosive coatings of claim 1-4, it is characterised in that：The kirsite anticorrosion is applied
Expect for aqueous silicate magnesium alloy containing zinc-aluminium primer base, it is made up of the first and second two components：First component is modulus 2.0~5.5
Lithium metasilicate or potassium silicate aqueous solution, component B be zinc-aluminium magnesium alloy powder；The stirring of first and second components is mixed as aqueous silicic acid
The mass percent that salt magnesium alloy containing zinc-aluminium primer base, wherein zinc-aluminium magnesium alloy powder account for gross mass is 35~85%；
According to mass percent, the composition of the lithium metasilicate or potassium silicate aqueous solution is：Lithium metasilicate or potassium silicate 10~40%, silicon
Colloidal sol 20~35%, silane 8~18%, distilled water 20~40%, auxiliary agent 0.5%~1.5%；The auxiliary agent is bentonite, stone
One or more mixing of black or thin methylcellulose.
6. according to any described kirsite anticorrosive coatings of claim 1-4, it is characterised in that：The kirsite anticorrosion is applied
Expect for alcohol-soluble magnesium alloy containing zinc-aluminium primer base, it is 1 according to mass ratio by zinc-aluminum-magnesium alloyed powder slurry and curing agent:0.5
~1.0 mix；
According to mass percent, the composition of the zinc-aluminum-magnesium alloyed powder slurry is：Polyvinyl butyral resin 1.5~5.0%, alcohols
Solvent 15~40%, auxiliary agent 0.5~5%, zinc-aluminium magnesium alloy powder 50~85%；The alcohols solvent be butanol, isopropanol or
One or more mixing of propylene glycol monomethyl ether, the auxiliary agent is the one or more of bentonite, graphite or thin methylcellulose
Mixing；
According to mass percent, the composition of the curing agent is：Tetraethyl orthosilicate 30~50%, mass concentration for 36.5% it is dense
Hydrochloric acid 0.9~1.3%, distilled water 5~10%, alcohols solvent 40~60%；The alcohols solvent is n-butanol, butanol, isopropyl
One or more mixing of alcohol or butyl glycol ether.
7. according to any described kirsite anticorrosive coatings of claim 1-4, it is characterised in that：The kirsite anticorrosion is applied
Expect for epoxy magnesium alloy containing zinc-aluminium primer base, it is made up of the first and second two components, wherein：
According to mass percent, first component is more than 800 bisphenol A epoxide resin or modified epoxy 5~35% by molecular weight,
Zinc-aluminium magnesium alloy powder 45~80%, talcum powder 0.5~3.0%, organobentonite 0.05~1.0%, polysiloxanes 0.1~
2.0%th, adjacent dibutyl carboxylic acid 0.06~1.0%, mixed solvent 10~15% are constituted；The mixed solvent is acetone and diformazan
Benzene butanol is according to mass ratio 7:3 mixed liquor；
According to mass percent, component B is by epoxy polyamide curing agent 70~90%, dibutyl phthalate 2~9%, three
Monoethanolamine 0.05~2.5%, silane coupler 0.05~2.0%, mixed solvent 5~20% is constituted；The mixed solvent is third
Ketone is with dimethylbenzene butanol according to mass ratio 7:3 mixed liquor；
First and second components in mass ratio 4~6:1 is mixed into epoxy magnesium alloy containing zinc-aluminium primer base.
8. according to any described kirsite anticorrosive coatings of claim 1-4, it is characterised in that：The kirsite anticorrosion is applied
Expect for water-base epoxy magnesium alloy containing zinc-aluminium primer base, it is made up of the first and second two components, wherein：
According to mass percent, first component is by aqueous epoxy resin curing agent 16~30%, zinc-aluminium magnesium alloy powder 42~72%,
Ferrophosphorus powder 4~18%, polysiloxanes or itself and polyethylene glycol mixture 0.1~2.5%, alumina silicate and silicic acid magnesium compound 0.1
~2.5%, propylene glycol monomethyl ether or with isopropanol mixture 1~8% constitute；
Second component is aqueous epoxy resins；
First and second components in mass ratio 2~5:1 is mixed into water-base epoxy magnesium alloy containing zinc-aluminium primer base.
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| CN108192403A (en) * | 2018-01-23 | 2018-06-22 | 永星化工(上海)有限公司 | A kind of solvent type zinc-aluminum paint |
| EP3670614A1 (en) * | 2018-12-11 | 2020-06-24 | Hamilton Sundstrand Corporation | A chromium-free corrosion inhibition coating |
| CN115160900A (en) * | 2022-07-05 | 2022-10-11 | 常州美信机械科技股份有限公司 | Long-acting anticorrosion zinc-aluminum coating liquid and preparation method thereof |
| CN115558915A (en) * | 2022-10-08 | 2023-01-03 | 深圳市豪龙新材料技术有限公司 | Magnesium alloy high-corrosion-resistance hydrophobic sealant and preparation method thereof |
| CN116333555A (en) * | 2022-09-08 | 2023-06-27 | 阳光水面光伏科技有限公司 | Epoxy alloy powder coating and preparation method and application thereof |
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Application publication date: 20170929 |