CN105176312B - A kind of water-base epoxy anti-corrosion primer containing zinc of doped graphene and preparation method thereof - Google Patents
A kind of water-base epoxy anti-corrosion primer containing zinc of doped graphene and preparation method thereof Download PDFInfo
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Abstract
The invention discloses water-base epoxy anti-corrosion primer containing zinc of a kind of doped graphene and preparation method thereof, the priming paint is made up of component A and B component；Component A includes：Epoxy hardener, titanium dioxide, water aluminum-silver slurry, zinc powder, graphene, nano barium sulfate, trbasic zinc phosphate, ferrotitanium powder, dispersant, defoamer, foam inhibitor, cosolvent, wetting agent, nertralizer, hydrated magnesium silicate, organobentonite, anti-flash rusting agent, chlorinated polypropylene, deionized water；B component is aqueous epoxy resin emulsion.Its preparation method is first prepares component A and B component respectively, in use, then component A is mixed with B component.The water-base epoxy anti-corrosion primer containing zinc of the doped graphene of the present invention has good drying property, adhesive force, salt spray resistance and chemical-resistance, can be applied to the anti-corrosion of the steel constructions such as petroleum pipeline, petroleum storage tank, oil equipment, petroleum machinery, petrochemical plants.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of water-base epoxy anti-corrosion primer containing zinc of doped graphene and
Its preparation method.
Background technology
Domestic existing composite anti-corrosive coating system is divided into priming paint, intermediate coat, finish paint or priming paint and finish paint.The wherein master of priming paint
Acting on is laid a solid foundation on ground, there is good adhesion to ground, ground is protected, with anti-corrosion, rustless property.
It is main at present to be prevented using solvent-borne type for the anti-corrosion of rail vehicles in China railways lorry painting design
Contain substantial amounts of organic volatile in rotten priming paint, solvent-borne type anti-corrosion primer, air can be polluted, do not meet current environment guarantor
The requirement of shield.Meanwhile, substantial amounts of organic volatile also causes sizable harm to production and the healthy of workmen.Apply
The Water-borne modification of material is the effective ways of current reduction VOC emission amount, is also the trend of future development.
Aqueous priming paint is nontoxic using water as solvent, solvent-free smell, more more environmentally friendly than solvent borne priming paint, by water-base resin,
Water, pigment and auxiliary agent are prepared from, wherein the key studied is water-base resin, by the development of decades, water main at present
Property resin system has water alcohol acid, water soluble acrylic acid, water-base epoxy, waterborne polyurethane resin, aqueous inorganic silicate, aqueous fluorine
Resin and their modified resin.
Meanwhile, with the development of China railways, the design of rolling stock will progressively carry out the design concept of " once remaking ",
I.e. the car body overhaul time limit extended to 16 years from 8 years, and this just proposes requirements at the higher level to the anti-corrosion of vehicle paintwork.For priming paint anti-corrosion
The size of ability, is mainly judged by the length of the salt-fog resistant time of coating at present.In existing painting design, for iron
Road truck body anti-corrosion, main using cologne earth alkyd thickness slurry priming paint and epoxy micaceous iron oxide rustproof paint, the salt fog resistance of the two is only
500h.It is difficult to meet higher requirement for anticorrosion.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art and provide a kind of water-base epoxy of doped graphene and prevent containing zinc
Rotten priming paint and preparation method thereof, gained priming paint has good drying property, adhesive force, salt spray resistance and chemical-resistance.
The water-base epoxy anti-corrosion primer containing zinc of a kind of doped graphene, by component A and B component by weight 15~35：1 group
Into component A includes following component in parts by weight：15~20 parts of epoxy hardener, 8~10 parts of titanium dioxide, aqueous aluminium silver
1~2 part of slurry, 25~40 parts of zinc powder, 2~5 parts of graphene, 5~10 parts of nano barium sulfate, 5~10 parts of trbasic zinc phosphate, ferrotitanium powder 5~
10 parts, 0.3~0.5 part of dispersant, 0.1~0.2 part of defoamer, 0.1~0.2 part of foam inhibitor, 8.5~10 parts of cosolvent, wetting
0.1~0.3 part of agent, 0.5~0.8 part of nertralizer, 0.3~0.5 part of hydrated magnesium silicate, 0.3~0.5 part of organobentonite, anti-sudden strain of a muscle
0.5~1 part of agent of rust, 5~8 parts of chlorinated polypropylene, 100~200 parts of deionized water；B component is aqueous epoxy resin emulsion.
As the further improvement of foregoing invention, the cosolvent is ethylene glycol monobutyl ether.
As the further improvement of foregoing invention, also include 0.5~1 part of polyamide wax in component A.
As the further improvement of foregoing invention, also include 1~6 part of hydroxy silicon oil in component A.
The preparation method of water-base epoxy corrosion resistant coating containing zinc of above-mentioned doped graphene, component A is made by following steps：Step
Rapid 1, hydrated magnesium silicate, organobentonite are added in deionized water, stirred, stands, obtains mixture；Step 2, by curable epoxide
Agent, nertralizer, cosolvent, dispersant, foam inhibitor, defoamer, anti-flash rusting agent mixing, 400~600rpm stir 5~10min；Step
Rapid 3, titanium dioxide, trbasic zinc phosphate and step 1 gained mixture are added under conditions of 400~600rpm stirrings, 600~800rpm is stirred
15~20min is mixed, fineness is ground to for 50 μm；Step 4, nano barium sulfate, stone are added under conditions of 400~600rpm stirrings
Black alkene and ferrotitanium powder, 600~800rpm stirs 15~20min；Step 5, mixture, the profit of water aluminum-silver slurry and cosolvent are added
Humectant, 600~800rpm stirs 5~10min；Step 6, propylene dichloride is added under 400~600rpm stirring conditions, 600~
800rpm stirs 5~10min；Step 7, zinc powder is added, 400~600rpm stirs 10~15min, produced；By component A and B groups
Divide mixing, produce.
As the further improvement of foregoing invention, in the preparation process 2 of component A, in addition it is also necessary to add polyamide wax.
As the further improvement of foregoing invention, in the preparation process 5 of component A, in addition it is also necessary to add hydroxy silicon oil.
The water-base epoxy anti-corrosion primer containing zinc of the doped graphene of the present invention has good drying property, adhesive force, resistance to
Salt fog performance and chemical-resistance, can be applied to the steel such as petroleum pipeline, petroleum storage tank, oil equipment, petroleum machinery, petrochemical plants
The anti-corrosion of structure.
Embodiment
The raw material that following examples are used for：
Aqueous epoxy resin emulsion (6520, the U.S. steps figure)
Titanium dioxide (257, climb steel titanium white)
Water aluminum-silver slurry (XH330, Shenzhen Xin Hangwang)
Trbasic zinc phosphate (PZ04, ring fine jade chemistry)
Nano barium sulfate (BS80, Beijing gold zebra)
Graphene (graphene oxide, Suzhou perseverance ball)
Zinc powder (600 height of eye purity zinc powders, Yangzhou is double to contain)
Ferrotitanium powder (X-500, Jiangsu Wanda)
Dispersant (755W, enlightening is high)
Defoamer (2550, BASF)
Foam inhibitor (BL-100, this shield of Suzhou hundred)
Wetting agent (67, this chemistry is engraved in sea)
Hydrated magnesium silicate (AD, sea ease chemistry)
Organobentonite (LT, Hai Mingsi)
Cosolvent (ethylene glycol monobutyl ether, sinopec)
Epoxy hardener (8538, the U.S. steps figure)
Chlorinated polypropylene (824, the rich chemical industry in Shanghai west)
Nertralizer (engraves this chemistry in DMAE, sea)
Anti- flash rusting agent (ZT-709, extra large river chemical industry)
Embodiment 1
The water-base epoxy anti-corrosion primer containing zinc of a kind of doped graphene, by component A and B component by weight 25：1 composition, A
Component includes following component in parts by weight：15 parts of epoxy hardener, 8 parts of titanium dioxide, 2 parts of water aluminum-silver slurry, zinc powder 40
Part, 2 parts of graphene, 10 parts of nano barium sulfate, 7 parts of trbasic zinc phosphate, 5 parts of ferrotitanium powder, 0.5 part of dispersant, 0.2 part of defoamer, suds
0.1 part of agent, 8.5 parts of cosolvent, 0.1 part of wetting agent, 0.5 part of nertralizer, 0.3 part of hydrated magnesium silicate, 0.5 part of organobentonite,
Anti- 0.5 part of flash rusting agent, 5 parts of chlorinated polypropylene, 100 parts of deionized water；B component is aqueous epoxy resin emulsion.
The cosolvent is ethylene glycol monobutyl ether.
The preparation method of water-base epoxy corrosion resistant coating containing zinc of above-mentioned doped graphene, component A is made by following steps：Step
Rapid 1, hydrated magnesium silicate, organobentonite are added in deionized water, stirred, stands, obtains mixture；Step 2, by curable epoxide
Agent, nertralizer, cosolvent, dispersant, foam inhibitor, defoamer, anti-flash rusting agent mixing, 600rpm stirrings 5min；Step 3, exist
Titanium dioxide, trbasic zinc phosphate and step 1 gained mixture are added under conditions of 400rpm stirrings, 600rpm stirring 20min are ground to thin
Spend for 50 μm；Step 4, nano barium sulfate, graphene and ferrotitanium powder, 600rpm stirrings are added under conditions of 600rpm stirrings
20min；Step 5, mixture, the wetting agent of water aluminum-silver slurry and cosolvent, 600rpm stirrings 10min are added；Step 6, exist
Propylene dichloride, 800rpm stirrings 5min are added under 400rpm stirring conditions；Step 7, zinc powder is added, 400rpm stirs 15min, i.e.,
；Component A is mixed with B component, produced.
Embodiment 2
The water-base epoxy anti-corrosion primer containing zinc of a kind of doped graphene, by component A and B component by weight 15：1 composition, A
Component includes following component in parts by weight：18 parts of epoxy hardener, 8 parts of titanium dioxide, 2 parts of water aluminum-silver slurry, zinc powder 25
Part, 3.5 parts of graphene, 8 parts of nano barium sulfate, 10 parts of trbasic zinc phosphate, 5 parts of ferrotitanium powder, 0.3 part of dispersant, 0.1 part of defoamer, suppression
0.2 part of infusion, 9 parts of cosolvent, 0.3 part of wetting agent, 0.6 part of nertralizer, 0.4 part of hydrated magnesium silicate, 0.4 part of organobentonite,
Anti- 0.8 part of flash rusting agent, 7 parts of chlorinated polypropylene, 165 parts of deionized water；B component is aqueous epoxy resin emulsion.
The cosolvent is ethylene glycol monobutyl ether.
The preparation method of water-base epoxy corrosion resistant coating containing zinc of above-mentioned doped graphene, component A is made by following steps：Step
Rapid 1, hydrated magnesium silicate, organobentonite are added in deionized water, stirred, stands, obtains mixture；Step 2, by curable epoxide
Agent, nertralizer, cosolvent, dispersant, foam inhibitor, defoamer, anti-flash rusting agent mixing, 500rpm stirrings 8min；Step 3, exist
Titanium dioxide, trbasic zinc phosphate and step 1 gained mixture are added under conditions of 600rpm stirrings, 700rpm stirring 18min are ground to thin
Spend for 50 μm；Step 4, nano barium sulfate, graphene and ferrotitanium powder, 700rpm stirrings are added under conditions of 500rpm stirrings
17min；Step 5, mixture, the wetting agent of water aluminum-silver slurry and cosolvent, 600rpm stirrings 10min are added；Step 6, exist
Propylene dichloride, 700rpm stirrings 7min are added under 500rpm stirring conditions；Step 7, zinc powder is added, 400rpm stirs 15min, i.e.,
；Component A is mixed with B component, produced.
Embodiment 3
The water-base epoxy anti-corrosion primer containing zinc of a kind of doped graphene, by component A and B component by weight 35：1 composition, A
Component includes following component in parts by weight：20 parts of epoxy hardener, 10 parts of titanium dioxide, 1 part of water aluminum-silver slurry, zinc powder 32
Part, 5 parts of graphene, 5 parts of nano barium sulfate, 5 parts of trbasic zinc phosphate, 10 parts of ferrotitanium powder, 0.3 part of dispersant, 0.2 part of defoamer, suds
It is 0.2 part of agent, 9 parts of cosolvent, 0.2 part of wetting agent, 0.8 part of nertralizer, 0.3 part of hydrated magnesium silicate, 0.5 part of organobentonite, anti-
0.8 part of flash rusting agent, 8 parts of chlorinated polypropylene, 180 parts of deionized water；B component is aqueous epoxy resin emulsion.
The cosolvent is ethylene glycol monobutyl ether.
The preparation method of water-base epoxy corrosion resistant coating containing zinc of above-mentioned doped graphene, component A is made by following steps：Step
Rapid 1, hydrated magnesium silicate, organobentonite are added in deionized water, stirred, stands, obtains mixture；Step 2, by curable epoxide
Agent, nertralizer, cosolvent, dispersant, foam inhibitor, defoamer, anti-flash rusting agent mixing, 500rpm stirrings 9min；Step 3, exist
Titanium dioxide, trbasic zinc phosphate and step 1 gained mixture are added under conditions of 400rpm stirrings, 800rpm stirring 15min are ground to thin
Spend for 50 μm；Step 4, nano barium sulfate, graphene and ferrotitanium powder, 600rpm stirrings are added under conditions of 400rpm stirrings
20min；Step 5, mixture, the wetting agent of water aluminum-silver slurry and cosolvent, 800rpm stirrings 5min are added；Step 6, exist
Propylene dichloride, 600rpm stirrings 10min are added under 600rpm stirring conditions；Step 7, zinc powder is added, 400rpm stirs 15min,
Produce；Component A is mixed with B component, produced.
Embodiment 4
The water-base epoxy anti-corrosion primer containing zinc of a kind of doped graphene, by component A and B component by weight 20：1 composition, A
Component includes following component in parts by weight：15 parts of epoxy hardener, 8 parts of titanium dioxide, 2 parts of water aluminum-silver slurry, zinc powder 30
Part, 5 parts of graphene, 5 parts of nano barium sulfate, 7 parts of trbasic zinc phosphate, 10 parts of ferrotitanium powder, 0.4 part of dispersant, 0.2 part of defoamer, suds
0.1 part of agent, 8.5 parts of cosolvent, 0.1 part of wetting agent, 0.5 part of nertralizer, 0.3 part of hydrated magnesium silicate, 0.5 part of organobentonite,
Anti- 1 part of flash rusting agent, 5 parts of chlorinated polypropylene, 125 parts of deionized water；B component is aqueous epoxy resin emulsion.
The cosolvent is ethylene glycol monobutyl ether.
The preparation method of water-base epoxy corrosion resistant coating containing zinc of above-mentioned doped graphene, component A is made by following steps：Step
Rapid 1, hydrated magnesium silicate, organobentonite are added in deionized water, stirred, stands, obtains mixture；Step 2, by curable epoxide
Agent, nertralizer, cosolvent, dispersant, foam inhibitor, defoamer, anti-flash rusting agent mixing, 400rpm stirrings 5min；Step 3, exist
Titanium dioxide, trbasic zinc phosphate and step 1 gained mixture are added under conditions of 600rpm stirrings, 600rpm stirring 15min are ground to thin
Spend for 50 μm；Step 4, nano barium sulfate, graphene and ferrotitanium powder, 800rpm stirrings are added under conditions of 600rpm stirrings
20min；Step 5, mixture, the wetting agent of water aluminum-silver slurry and cosolvent, 800rpm stirrings 5min are added；Step 6, exist
Propylene dichloride, 600rpm stirrings 10min are added under 400rpm stirring conditions；Step 7, zinc powder is added, 400rpm stirs 10min,
Produce；Component A is mixed with B component, produced.
Embodiment 5
The water-base epoxy anti-corrosion primer containing zinc of a kind of doped graphene, by component A and B component by weight 35：1 composition, A
Component includes following component in parts by weight：20 parts of epoxy hardener, 8 parts of titanium dioxide, 1 part of water aluminum-silver slurry, zinc powder 30
Part, 5 parts of graphene, 5 parts of nano barium sulfate, 5 parts of trbasic zinc phosphate, 5 parts of ferrotitanium powder, 0.5 part of dispersant, 0.1 part of defoamer, foam inhibitor
0.2 part, it is 9.5 parts of cosolvent, 0.3 part of wetting agent, 0.8 part of nertralizer, 0.5 part of hydrated magnesium silicate, 0.3 part of organobentonite, anti-
0.6 part of flash rusting agent, 8 parts of chlorinated polypropylene, 200 parts of deionized water；B component is aqueous epoxy resin emulsion.
The cosolvent is ethylene glycol monobutyl ether.
The preparation method of water-base epoxy corrosion resistant coating containing zinc of above-mentioned doped graphene, component A is made by following steps：Step
Rapid 1, hydrated magnesium silicate, organobentonite are added in deionized water, stirred, stands, obtains mixture；Step 2, by curable epoxide
Agent, nertralizer, cosolvent, dispersant, foam inhibitor, defoamer, anti-flash rusting agent mixing, 600rpm stirrings 10min；Step 3, exist
Titanium dioxide, trbasic zinc phosphate and step 1 gained mixture are added under conditions of 400rpm stirrings, 800rpm stirring 20min are ground to thin
Spend for 50 μm；Step 4, nano barium sulfate, graphene and ferrotitanium powder, 600rpm stirrings are added under conditions of 600rpm stirrings
15min；Step 5, mixture, the wetting agent of water aluminum-silver slurry and cosolvent, 800rpm stirrings 10min are added；Step 6, exist
Propylene dichloride, 800rpm stirrings 5min are added under 400rpm stirring conditions；Step 7, zinc powder is added, 600rpm stirs 10min, i.e.,
；Component A is mixed with B component, produced.
Embodiment 6
The present embodiment and the difference of embodiment 3 are：Also include 0.5 part of polyamide wax in component A.
Embodiment 7
The present embodiment and the difference of embodiment 6 are：Also include 6 parts of hydroxy silicon oil in component A.
Performance test
Test method is：By the component A in each embodiment and B component paint, it is diluted using deionized-distilled water
To spray viscosity (40-50S, T-4 glasss), standard tinplate sheet carries out thickness control in phosphatization or grinding process, tinplate sheet and existed
20-30 μm, all-round property testing is done after 48 hours do solid work completely, type inspection dry plate thickness control is treated 7 days at 80-100 μm
Pattern detection is done after doing solid work completely.Drying time, adhesive force was according to GB/T1720, and impact is according to GB/ according to GB/T1728
T1732, toughness is according to GB/T1731, and viscosity is according to GB/T1723, and resistance to neutral salt spray is according to GB/T1771, combination property and CN
Coating in 102093805A is contrasted.As a result it is as shown in the table.
As can be seen from the table, the priming paint in embodiment 1~5 has good drying property, adhesive force, salt spray resistance
And chemical-resistance；By adding polyamide wax in component A, the drying property and antiseptic property of coating can be improved；Pass through
Embodiment 7 is as can be seen that hydroxy silicon oil can preferably produce synergy, raising antiseptic property with polyamide.
Claims (1)
1. a kind of water-base epoxy anti-corrosion primer containing zinc of doped graphene, it is characterised in that：By component A and B component by weight
35：1 composition, component A includes following component in parts by weight：20 parts of epoxy hardener, 10 parts of titanium dioxide, water aluminum-silver slurry
1 part, 32 parts of zinc powder, 5 parts of graphene, 5 parts of nano barium sulfate, 5 parts of trbasic zinc phosphate, 10 parts of ferrotitanium powder, 0.3 part of dispersant, defoamer
0.2 part, 0.2 part of foam inhibitor, 9 parts of cosolvent, 0.2 part of wetting agent, 0.8 part of nertralizer, 0.3 part of hydrated magnesium silicate, organic swelling
0.5 part of soil, 0.8 part of anti-flash rusting agent, 8 parts of chlorinated polypropylene, 0.5 part of polyamide wax, 6 parts of hydroxy silicon oil, 180 parts of deionized water；B
Component is aqueous epoxy resin emulsion；
The cosolvent is ethylene glycol monobutyl ether；
The preparation method of water-base epoxy anti-corrosion primer containing zinc of above-mentioned doped graphene, component A is made by following steps：Step
1, hydrated magnesium silicate, organobentonite are added in deionized water, stirred, stands, obtains mixture；Step 2, by curable epoxide
Agent, nertralizer, cosolvent, dispersant, foam inhibitor, defoamer, anti-flash rusting agent mixing, 500rpm stirrings 9min；Step 3, exist
Titanium dioxide, trbasic zinc phosphate and step 1 gained mixture are added under conditions of 400rpm stirrings, 800rpm stirring 15min are ground to thin
Spend for 50 μm；Step 4, nano barium sulfate, graphene and ferrotitanium powder, 600rpm stirrings are added under conditions of 400rpm stirrings
20min；Step 5, mixture, the wetting agent of water aluminum-silver slurry and cosolvent, 800rpm stirrings 5min are added；Step 6, exist
Chlorinated polypropylene, 600rpm stirrings 10min are added under 600rpm stirring conditions；Step 7, zinc powder, 400rpm stirrings are added
15min, is produced；Component A is mixed with B component, produced；
In the preparation process 2 of component A, in addition it is also necessary to add polyamide wax；In the preparation process 5 of component A, in addition it is also necessary to add hydroxyl silicon
Oil.
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| CN108641547B (en) * | 2018-05-16 | 2019-11-08 | 中南大学 | A kind of water-base epoxy anti-corrosive primer and preparation method thereof |
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| CN103497636B (en) * | 2013-09-07 | 2016-09-21 | 中国科学院合肥物质科学研究院 | Water-thinned epoxy zinc-rich coating that conductive nano material with carbon element is modified and preparation method thereof |
| CN104140738B (en) * | 2014-05-20 | 2016-06-29 | 成都拜迪新材料有限公司 | For finish paint preparation method at the bottom of the aqueous of railway support system |
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Denomination of invention: A water-borne zinc containing epoxy anti-corrosion primer doped with graphene and its preparation method Effective date of registration: 20221122 Granted publication date: 20170915 Pledgee: Bank of Nanjing Co.,Ltd. Zhenjiang Branch Pledgor: JIANGSU HUAXIA PAINT-MAKING Co.,Ltd. Registration number: Y2022980022794 |
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