CN105907245B - A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating - Google Patents
A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating Download PDFInfo
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- CN105907245B CN105907245B CN201610357950.9A CN201610357950A CN105907245B CN 105907245 B CN105907245 B CN 105907245B CN 201610357950 A CN201610357950 A CN 201610357950A CN 105907245 B CN105907245 B CN 105907245B
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
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- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Paints Or Removers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of bridge built-in fitting Dacroments and confining bed composite anti-corrosive coating, including Dacroment anti-corrosion masking liquid and confining liquid: Dacroment anti-corrosion masking liquid, including component A and B component；Component A includes zinc metal sheet and aluminium flake, deionized water, fatty alcohol polyoxyethylene ether；B component includes the component of following mass fraction: unformed compound molybdate compound, barium hydrochlorate, hydrogen peroxide, 1~3 part of polyethylene glycol；After component A and B component are mixed and stirred for uniformly, mixture pH is adjusted to 3.5~5.0 by pH adjusting agent；Confining liquid includes preposition prewired component and curing reaction component；Preposition prewired component includes the mixture of normal temperature cure agent, ethanol water, glycerine, zinc metal sheet and aluminium flake；Curing reaction group is divided into epoxy resin aqueous emulsion, and the epoxide number of epoxy resin is 0.54~0.56 equivalent/100 gram；Preposition prewired component and curing reaction component are mixed according to the mass ratio of 2 ︰ (2~3).
Description
Technical field
The present invention relates to a kind of bridge built-in fitting composite anti-corrosive processing technology field, especially a kind of bridge built-in fitting up to gram
Sieve and confining bed composite anti-corrosive coating.
Background technique
Annual world steel corrosion loss accounts for 10% or more of steel total output, economy caused by industrially developed country corrodes
Loss accounts for 2%~4% of total value of production in national economy or more；Advanced anticorrosion technique is researched and developed, is passed through caused by corrosion with reducing
Ji loss, the service life for extending steel and other metal materials and equipment, to promotion advanced technology, the most advanced branches of science and national defence work
The sustainable and harmonious development of the development of industry and national economy and social environment has particularly important meaning.
Dacroment also known as reaches a gram rust, high gram rust, Zinc-Chromium film etc., refers to use and contains zinc metal sheet, aluminium flake, chromic anhybride, ethylene glycol
The liquid treatment fluid of equal ingredients coats metallic matrix, after high-temperature baking, has at one layer of metal base surface formation splendid
Corrosion proof non-decoration film, existing deficiency are surface hardness deficiency.Further, since chromium is anti-in Dacromet/steel metal
Key effect is played in rotten technology, the content in slurries is at 20~26 milligrams every liter or more, the solidification of Dacromet/steel
Journey is exactly the process that sexavalence chromic acid is restored by organic matters such as ethylene glycol at high temperature, to generate not soluble in water, unbodied
Trivalent chromium is as bonding agent, and with metal surface, tens of layers of lamination zinc metal sheet combines to form 5~12 microns finer and close of Da Ke
Sieve zinc-chromium coating；Therefore chromium all exists all the time in the processing and application of Dacroment, preparing from raw material storage and transportation to slurries,
To the coating and solidification of Dacroment, use is finally arrived, all there is the possibility of pollution of chromium.
Anti-corrosion of metal is a kind of two-way corrosion-resistant composite coating with confining bed, and traditional confining bed is to participate in epoxy resin
The one layer of densification and hard protective layer that zinc or aluminum foil are sintered through 200 DEG C, its biggest characteristic is that not only with certain anti-corrosive properties but also
With certain surface hardness；Therefore one layer of hard confining bed is formed with confining liquid processing again outside Dacroment corrosion-inhibiting coating,
It can protect Dacroment corrosion-inhibiting coating not to be damaged.
Summary of the invention
For overcome the deficiencies in the prior art, it is compound anti-that the present invention provides a kind of bridge built-in fitting Dacroments and confining bed
Rotten coating.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating, including Dacroment masking liquid and confining liquid:
Dacroment anti-corrosion masking liquid includes component A and B component；Component A includes the component of following mass fraction: zinc metal sheet and aluminium flake
10 parts, wherein the ratio of zinc metal sheet and aluminium flake is 2 ︰ (1~3)；50~60 parts of deionized water, fatty alcohol polyoxyethylene ether 0.5~2.0
Part；B component includes the component of following mass fraction: unformed 10 parts of compound molybdate compound, and 5~15 parts of barium hydrochlorate, peroxide
Change 0.5~0.8 part of hydrogen, 1~3 part of polyethylene glycol；Component A and B component are mixed and stirred for according to the mass ratio of 1 ︰ (15~25)
After uniformly, mixture pH is adjusted to 3.5~5.0 by pH adjusting agent；
Confining liquid includes preposition prewired component and curing reaction component；Preposition prewired component includes the group of following mass fraction
Point: 60~70 parts of normal temperature cure agent, volumetric concentration is 20~25 parts of ethanol water of 50%~80%, 1~2 part of glycerine, zinc
15~20 parts of mixture of piece and aluminium flake；Curing reaction component are as follows: the epoxy resin aqueous emulsion that solid content is 50%~70%, epoxy
The epoxide number of resin is 0.54~0.56 equivalent/100 gram；In use, preposition prewired component and curing reaction component are according to 2 ︰ (2
~3) it is sufficiently stirred after mass ratio mixing.
It is as above-mentioned technical proposal it is specific preferably, the pH adjusting agent in Dacroment anti-corrosion masking liquid be zinc oxide, aluminium oxide,
One of barium monoxide, aluminium hydroxide and barium hydroxide are a variety of.
As above-mentioned technical proposal specific preferred, the normal temperature cure agent in confining liquid is contracted by tetraethylenepentamine and anacardol
Water glycerin ether is made according to the mass ratio of 1 ︰ (2~3), and preparation process is agitating and heating tetraethylenepentamine to 60~70 DEG C, by waist
Fruit phenol glycidol ether is slowly added dropwise into tetraethylenepentamine, and then insulated and stirred is made.
As above-mentioned technical proposal specific preferred, in Dacroment anti-corrosion masking liquid, component A includes the group of following mass fraction
Point: zinc metal sheet and 10 parts of aluminium flake, wherein the ratio of zinc metal sheet and aluminium flake is 1 ︰ 1；50 parts of deionized water, fatty alcohol polyoxyethylene ether 1.1
Part；B component includes the component of following mass fraction: unformed 10 parts of compound molybdate compound；8 parts of barium hydrochlorate；Hydrogen peroxide
0.5 part；2 parts of polyethylene glycol；After component A and B component are mixed and stirred for uniformly according to the mass ratio of 1 ︰ 18, pass through pH adjusting agent
Mixture pH is adjusted to 4.0~4.5；
In confining liquid, preposition prewired component includes the component of following mass fraction: 65 parts of normal temperature cure agent, volumetric concentration is
20 parts of 60% ethanol water, 1 part of glycerine, 20 parts of mixture of zinc metal sheet and aluminium flake；Curing reaction component are as follows: solid content is
60% epoxy resin aqueous emulsion, the epoxide number of epoxy resin are 0.54~0.56 equivalent/100 gram；In use, preposition pre- combo
Divide after being mixed with curing reaction component according to the mass ratio of 1 ︰ 1 and is sufficiently stirred.
Compared with prior art, the beneficial effects of the present invention are:
A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating provided by the present invention select chromium-free Dyclo
Anti-corrosion masking liquid, principle are: unformed compound molybdate compound (MoO3•nMo2O3) as binder and tens of layers about 0.2
The coating that micron is thick, flake zinc, aluminium of 10 microns of sizes are bound to each other to form；Workpiece have passed through oil removing, processing of rust removing,
The inorganic coating being grouped as by groups such as zinc, aluminium, molybdenum, barium is formed after 300 DEG C or so high-temperature bakings again；When solidification, in coating
Moisture content, organic component etc. are while volatilization, by the oxidisability of high price molybdenum, barium hydrochlorate in Dacroment masking liquid, to zinc, aluminium and iron
Matrix carries out passive state protection simultaneously, forms the molybdate compound of iron, aluminium, zinc；Since coating is directly to react acquisition with matrix
, therefore corrosion-resistant coating is extremely fine and close；Coating will form numerous primary battery in a corrosive environment, i.e., first erodes what current potential was relatively born
Zinc metal sheet and aluminium flake are possible to corrosion to matrix itself.
In addition, confining liquid of the invention can be solidified at normal temperature, therefore substantially increase the work of confining bed processing
Make efficiency and reduces the labor intensity of work.
Specific embodiment
Carry out the technology contents that present invention be described in more detail below in conjunction with specific embodiments.
Specific embodiment 1
A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating provided by the present embodiment, including Dacroment apply
Liquid and confining liquid:
Dacroment anti-corrosion masking liquid includes component A and B component；Component A includes the component of following mass fraction: zinc metal sheet and aluminium flake
10 parts, wherein the ratio of zinc metal sheet and aluminium flake is 2 ︰ (1~3)；50~60 parts of deionized water, fatty alcohol polyoxyethylene ether 0.5~2.0
Part；B component includes the component of following mass fraction: unformed 10 parts of compound molybdate compound, and 5~15 parts of barium hydrochlorate, peroxide
Change 0.5~0.8 part of hydrogen, 1~3 part of polyethylene glycol；Component A and B component are mixed and stirred for according to the mass ratio of 1 ︰ (15~25)
After uniformly, mixture pH is adjusted to 3.5~5.0 by pH adjusting agent；PH adjusting agent is zinc oxide, aluminium oxide, barium monoxide, hydrogen
One of aluminium oxide and barium hydroxide are a variety of；
Confining liquid includes preposition prewired component and curing reaction component；Preposition prewired component includes the group of following mass fraction
Point: 65 parts of normal temperature cure agent, volumetric concentration is 20 parts of ethanol water of 60%, 1 part of glycerine, the mixture of zinc metal sheet and aluminium flake
20 parts；Curing reaction component are as follows: the epoxy resin aqueous emulsion that solid content is 60%, the epoxide number of epoxy resin are 0.54~0.56
Equivalent/100 gram；In use, preposition prewired component and curing reaction component are sufficiently stirred i.e. after mixing according to the mass ratio of 1 ︰ 1
It can；Normal temperature cure agent is made by tetraethylenepentamine and cardanol glycidyl ether according to the mass ratio of 1 ︰ (2~3), preparation process
It is agitating and heating tetraethylenepentamine to 60~70 DEG C, cardanol glycidyl ether is slowly added dropwise into tetraethylenepentamine, then
Insulated and stirred is made.
The Dacroment anti-corrosion masking liquid of one layer of the present embodiment is coated on bridge built-in fitting surface, through 300 DEG C or so high-temperature bakings
After form Dacromet/steel, then spray the confining liquid room temperature of one layer of the present embodiment again 24 hours；By above-mentioned place
The bridge built-in fitting of reason carries out room temperature neutral salt spray corrosion test in salt fog cabinet, and result is not occur rust staining in 1000 hours,
The Vickers hardness number of combined anti-corrosion layer is 300HV or more.
Specific embodiment 2
A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating provided by the present embodiment, main formula composition
It is identical as specific embodiment 1, with specific embodiment 1 the difference is that:
Dacroment anti-corrosion masking liquid, component A include the component of following mass fraction: zinc metal sheet and 10 parts of aluminium flake, wherein zinc metal sheet and
The ratio of aluminium flake is 2 ︰ 1；55 parts of deionized water, 2.0 parts of fatty alcohol polyoxyethylene ether；B component includes the group of following mass fraction
Point: unformed 10 parts of compound molybdate compound, 15 parts of barium hydrochlorate .6 parts of hydrogen peroxidase 10,1 part of polyethylene glycol；By component A and B
After component is mixed and stirred for uniformly according to the mass ratio of 1 ︰ 15, mixture pH is adjusted to 3.5~4.0 by pH adjusting agent；
In confining liquid, preposition prewired component includes the component of following mass fraction: 60 parts of normal temperature cure agent, volumetric concentration is
25 parts of 50% ethanol water, 1.5 parts of glycerine, 15 parts of mixture of zinc metal sheet and aluminium flake；Curing reaction component are as follows: solid content
For 70% epoxy resin aqueous emulsion, the epoxide number of epoxy resin is 0.54~0.56 equivalent/100 gram；In use, preposition prewired
Component and curing reaction component are sufficiently stirred after mixing according to the mass ratio of 4 ︰ 5.
The Dacroment anti-corrosion masking liquid of one layer of the present embodiment is coated on bridge built-in fitting surface, through 300 DEG C or so high-temperature bakings
After form Dacromet/steel, then spray the confining liquid room temperature of one layer of the present embodiment again 24 hours；By above-mentioned place
The bridge built-in fitting of reason carries out room temperature neutral salt spray corrosion test in salt fog cabinet, and result is not occur rust staining in 600 hours, multiple
The Vickers hardness number for closing erosion resistant coating is 250HV~300HV.
Specific embodiment 3
A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating provided by the present embodiment, main formula composition
It is identical as specific embodiment 1, with specific embodiment 1 the difference is that:
Dacroment anti-corrosion masking liquid, component A include the component of following mass fraction: zinc metal sheet and 10 parts of aluminium flake, wherein zinc metal sheet and
The ratio of aluminium flake is 2 ︰ 3；60 parts of deionized water, 0.5 part of fatty alcohol polyoxyethylene ether；B component includes the group of following mass fraction
Point: unformed 10 parts of compound molybdate compound, 5 parts of barium hydrochlorate .8 parts of hydrogen peroxidase 10,3 parts of polyethylene glycol；By component A and B
After component is mixed and stirred for uniformly according to the mass ratio of 1 ︰ 25, mixture pH is adjusted to 4.5~5.0 by pH adjusting agent；
In confining liquid, preposition prewired component includes the component of following mass fraction: 70 parts of normal temperature cure agent, volumetric concentration is
21 parts of 80% ethanol water, 2 parts of glycerine, 18 parts of mixture of zinc metal sheet and aluminium flake；Curing reaction component are as follows: solid content is
50% epoxy resin aqueous emulsion, the epoxide number of epoxy resin are 0.54~0.56 equivalent/100 gram；In use, preposition pre- combo
Divide after being mixed with curing reaction component according to the mass ratio of 2 ︰ 3 and is sufficiently stirred.
The Dacroment anti-corrosion masking liquid of one layer of the present embodiment is coated on bridge built-in fitting surface, through 300 DEG C or so high-temperature bakings
After form Dacromet/steel, then spray the confining liquid room temperature of one layer of the present embodiment again 24 hours；By above-mentioned place
The bridge built-in fitting of reason carries out room temperature neutral salt spray corrosion test in salt fog cabinet, and result is not occur rust staining in 600 hours, multiple
The Vickers hardness number for closing erosion resistant coating is 250HV~300HV.
Preferable implementation of the invention is illustrated above, certainly, the present invention can also use and above-mentioned implementation
The different form of mode, those skilled in the art's made equivalent transformation on the premise of without prejudice to spirit of the invention
Or corresponding change, all it should belong in protection scope of the present invention.
Claims (1)
1. a kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating, it is characterised in that: including Dacroment masking liquid and envelope
Close liquid:
Dacroment anti-corrosion masking liquid includes component A and B component；Component A includes the component of following mass fraction: zinc metal sheet and aluminium flake 10
Part, wherein the ratio of zinc metal sheet and aluminium flake is 1 ︰ 1；50 parts of deionized water, 1.1 parts of fatty alcohol polyoxyethylene ether；B component includes following
The component of mass fraction: unformed 10 parts of compound molybdate compound；8 parts of barium hydrochlorate；.5 parts of hydrogen peroxidase 10；Polyethylene glycol 2
Part；After component A and B component are mixed and stirred for uniformly according to the mass ratio of 1 ︰ 18, mixture pH is adjusted by pH adjusting agent
It is 4.0~4.5；PH adjusting agent in the Dacroment anti-corrosion masking liquid is zinc oxide, aluminium oxide, barium monoxide, aluminium hydroxide and hydrogen
One of barium monoxide is a variety of；
Confining liquid includes preposition prewired component and curing reaction component；Preposition prewired component includes the component of following mass fraction:
60~70 parts of normal temperature cure agent, volumetric concentration is 20~25 parts of ethanol water of 50%~80%, 1~2 part of glycerine, zinc metal sheet
With 15~20 parts of mixture of aluminium flake；Curing reaction component are as follows: the epoxy resin aqueous emulsion that solid content is 50%~70%, epoxy
The epoxide number of resin is 0.54~0.56 equivalent/100 gram；In use, preposition prewired component and curing reaction component are according to 2 ︰ (2
~3) it is sufficiently stirred after mass ratio mixing；Wherein, the normal temperature cure agent in confining liquid is by tetraethylenepentamine and anacardol
Glycidol ether is made according to the mass ratio of 1 ︰ (2~3), and preparation process is agitating and heating tetraethylenepentamine to 60~70 DEG C, will
Cardanol glycidyl ether is slowly added dropwise into tetraethylenepentamine, and then insulated and stirred is made.
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| CN201610357950.9A CN105907245B (en) | 2016-05-26 | 2016-05-26 | A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating |
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| CN201610357950.9A CN105907245B (en) | 2016-05-26 | 2016-05-26 | A kind of bridge built-in fitting Dacroment and confining bed composite anti-corrosive coating |
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| CN105907245B true CN105907245B (en) | 2019-01-04 |
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| CN113025197A (en) * | 2021-04-30 | 2021-06-25 | 上海达克罗涂复工业有限公司 | Self-spraying coating for repairing zinc-aluminum coating and preparation method and use method thereof |
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| JP2004051686A (en) * | 2002-07-17 | 2004-02-19 | Kansai Paint Co Ltd | Electrodeposition coating material and coated article |
| JP2007313475A (en) * | 2006-05-29 | 2007-12-06 | Basf Coatings Japan Ltd | Multilayer coating film formation process and article coated with the multilayer coating film |
| CN102559006A (en) * | 2011-12-13 | 2012-07-11 | 上海安福隆涂复工业有限公司 | Black dacromet paint |
| CN103145954A (en) * | 2012-12-21 | 2013-06-12 | 上海美东生物材料有限公司 | Anacardol glycidyl ether modified aliphatic amine hardener and preparation method thereof |
| CN103740153B (en) * | 2013-11-12 | 2016-02-03 | 宁波墨西科技有限公司 | A kind of Dyclo paint of Graphene modification |
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