CN106916508A - A kind of anti-corrosive primer and preparation method thereof - Google Patents
A kind of anti-corrosive primer and preparation method thereof Download PDFInfo
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- CN106916508A CN106916508A CN201510992520.XA CN201510992520A CN106916508A CN 106916508 A CN106916508 A CN 106916508A CN 201510992520 A CN201510992520 A CN 201510992520A CN 106916508 A CN106916508 A CN 106916508A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/43—Compounds containing sulfur bound to nitrogen
- C08K5/44—Sulfenamides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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Abstract
The invention provides a kind of anti-corrosive primer and preparation method thereof, one of which anti-corrosive primer, including component A and B component；The component A includes that the raw material of following weight portion is constituted：Epoxy resin 5-23, defoamer 0.1-2, dispersant 0.1-1, solvent 1-10, thixotropic agent 0.1-1, anti-settling agent 0.1-1.5, zinc powder 50-87；The B component includes that the raw material of following weight portion is constituted：Curing agent 30-70, toughener 1-9, accelerator 0.5-4, silane coupler 0.5-2, dispersant 0.1-0.5, defoamer 0.01-0.5, solvent 10-30, anti-corrosive primer of the invention is a kind of zinc-rich anti-corrosive primer, the equal comparative superiority of index such as anti-corrosive properties, adhesive force, pliability of the anti-corrosive primer.
Description
Technical field
This patent is related to field of fine chemical, more particularly to a kind of anti-corrosive primer and preparation method thereof.
Background technology
Most convenient, the most economical means of steel substrate anti-corrosion are selection organic coatings, and effective coating uses the longevity
Life is necessarily dependent upon good surface treatment can just give full play to the antiseptic property of coating.Due to coating decoration operating mode ring in reality
Border and the limitation of condition, it tends to be difficult to be thoroughly surface-treated by rust cleaning standard.Base material generally after treatment is not still with
With degree corrosion thing and often in the state of high humidity.The common coating of direct application is often obtained on this substrate surface
Less than expected antiseptic effect.So needs are a kind of can directly to carry out the property high of application over rust on the surface for not meeting rust cleaning standard
The low-treated surface coating of energy, but coating on the market does not reach this requirement at present.
The content of the invention
The invention provides a kind of anti-corrosive primer and preparation method thereof, the anti-corrosive properties of the anti-corrosive primer, adhesive force, pliability
Etc. the equal comparative superiority of index.
Concrete technical scheme of the invention is as follows：A kind of anti-corrosive primer, including component A and B component；The component A includes
The raw material composition of following weight portion：Epoxy resin 5-23, defoamer 0.1-2, dispersant 0.1-1, solvent 1-10, thixotropic agent 0.1-
1, anti-settling agent 0.1-1.5, zinc powder 50-87；The B component includes that the raw material of following weight portion is constituted：Curing agent 30-70, toughness reinforcing
Agent 1-9, accelerator 0.5-4, silane coupler 0.5-2, dispersant 0.1-0.5, defoamer 0.01-0.5, solvent 10-30.
Above-mentioned anti-corrosive primer, wherein, the component A includes that the raw material of following weight portion is constituted：Epoxy resin 9.6-
23, defoamer 0.5-2, dispersant 0.3-0.7, solvent 2.5-7, thixotropic agent 0.2-1, anti-settling agent 1-1.5, zinc powder 80-87；It is described
B component includes that the raw material of following weight portion is constituted：Curing agent 44-70, toughener 4-9, accelerator 1-4, silane coupler 1-2,
Dispersant 0.2-0.5, defoamer 0.01-0.5, solvent 15-30.
Above-mentioned anti-corrosive primer, wherein, the component A includes that the raw material of following weight portion is constituted：Epoxy resin 16, disappears
Infusion 1.2, dispersant 6, solvent 5, thixotropic agent 0.6, anti-settling agent 1.2, zinc powder 82；The B component includes the original of following weight portion
Material composition：Curing agent 55, toughener 7, accelerator 2.5, silane coupler 1.5, dispersant 0.3, defoamer 0.2, solvent 25.
Above-mentioned anti-corrosive primer, wherein, the epoxy resin is bisphenol A type epoxy resin, and the thixotropic agent is gas phase two
Silica.
A kind of another side of the invention, preparation method of anti-corrosive primer, comprises the following steps：
Epoxy resin and solvent are sequentially added into dispersant, thixotropic agent, zinc powder and anti-settling agent under agitation and is stirred and evenly mixed
Obtain the first mixture；
First mixture is added defoamer and stirred and evenly mixed under agitation and obtains component A；
Curing agent, accelerator, toughener, solvent and silane coupler are uniformly mixing to obtain B component in molten device；
Component A and B component are well mixed and can obtain anti-corrosive primer.
Above-mentioned preparation method, wherein, it is described by epoxy resin and solvent 2000-5000r/min mixing speed
Under sequentially add dispersant, thixotropic agent, zinc powder and anti-settling agent and stir 45min to fineness less than 90 μm, obtain the first mixture.
Above-mentioned preparation method, wherein, it is described first mixture to be added into defoamer under agitation and is stirred and evenly mixed
Component A is obtained, wherein stirring 30min under conditions of 2000-5000r/min.
The invention provides a kind of anti-corrosive primer, including component A and B component；The component A includes the original of following weight portion
Material composition：Epoxy resin 5-23, defoamer 0.1-2, dispersant 0.1-1, solvent 1-10, thixotropic agent 0.1-1, anti-settling agent 0.1-
1.5, zinc powder 50-87；The B component includes that the raw material of following weight portion is constituted：Curing agent 30-70, toughener 1-9, accelerator
0.5-4, silane coupler 0.5-2, dispersant 0.1-0.5, defoamer 0.01-0.5, solvent 10-30, anti-corrosive primer of the invention
It is a kind of zinc-rich anti-corrosive primer, the equal comparative superiority of index such as anti-corrosive properties, adhesive force, pliability of the anti-corrosive primer.
Brief description of the drawings
By the detailed description made to non-limiting example with reference to the following drawings of reading, the present invention and its feature, outward
Shape and advantage will become more apparent upon.Identical mark indicates identical part in whole accompanying drawings.Not deliberately proportionally
Draw accompanying drawing, it is preferred that emphasis is purport of the invention is shown.
Fig. 1 is the iron content energy disperse spectroscopy basic spectrogram of measure in paint film in the present invention.
Specific embodiment
In the following description, a large amount of concrete details are given to provide more thorough understanding of the invention.So
And, it is obvious to the skilled person that the present invention can be able to without one or more of these details
Implement.In other examples, in order to avoid obscuring with the present invention, do not enter for some technical characteristics well known in the art
Row description.
In order to thoroughly understand the present invention, detailed step and detailed structure will be proposed in following description, so as to
Explaination technical scheme.Presently preferred embodiments of the present invention is described in detail as follows, but in addition to these detailed descriptions, this
Invention can also have other embodiment.
Embodiment 1, a kind of anti-corrosive primer, including component A and B component；Component A includes that the raw material of following weight portion is constituted：
Epoxy resin 5, defoamer 0.1, dispersant 0.1, solvent 1, thixotropic agent 0.1, anti-settling agent 0.1, zinc powder 50；B component includes following
The raw material composition of weight portion：Curing agent 30, toughener 1, accelerator 0.5, silane coupler 0.5, dispersant 0.1, defoamer
0.01, solvent 10 is separately prepared to A, B component, by A and B component in mass ratio 10 when construction：1 is well mixed
Use.
Embodiment 2, a kind of anti-corrosive primer, including component A and B component；Component A includes that the raw material of following weight portion is constituted：
Epoxy resin 23, defoamer 2, dispersant 1, solvent 10, thixotropic agent 1, anti-settling agent 1.5, zinc powder 87；B component includes following weight
The raw material composition of part：Curing agent 70, toughener 9, accelerator 4, silane coupler 2, dispersant 0.5, defoamer 0.5, solvent
30, A, B component are separately prepared, by A and B component in mass ratio 10 when construction：1 is well mixed i.e. usable.
Embodiment 3, a kind of anti-corrosive primer, including component A and B component；Component A includes that the raw material of following weight portion is constituted：
Epoxy resin 9.6, defoamer 0.5, dispersant 0.3, solvent 2.5, thixotropic agent 0.2, anti-settling agent 1, zinc powder 80；The B component bag
Include the raw material composition of following weight portion：Curing agent 44, toughener 4, accelerator 1, silane coupler 1, dispersant 0.2, defoamer
0.01, solvent 15 is separately prepared to A, B component, by A and B component in mass ratio 10 when construction：1 is well mixed
Use.
Embodiment 4, a kind of anti-corrosive primer, including component A and B component；Component A includes that the raw material of following weight portion is constituted：
Epoxy resin 23, defoamer 2, dispersant 0.7, solvent 7, thixotropic agent 1, anti-settling agent 1.5, zinc powder 87；The B component includes following
The raw material composition of weight portion：Curing agent 70, toughener 9, accelerator 4, silane coupler 2, dispersant 0.5, defoamer 0.5 is molten
Agent 30, separately prepares to A, B component, by A and B component in mass ratio 10 when construction：1 is well mixed i.e. usable.
Embodiment 5, a kind of anti-corrosive primer, including component A and B component；Component A includes that the raw material of following weight portion is constituted：
Epoxy resin 16, defoamer 1.2, dispersant 6, solvent 5, thixotropic agent 0.6, anti-settling agent 1.2, zinc powder 82；B component includes following heavy
Measure the raw material composition of part：Curing agent 55, toughener 7, accelerator 2.5, silane coupler 1.5, dispersant 0.3, defoamer 0.2,
Solvent 25, separately prepares to A, B component, by A and B component in mass ratio 10 when construction：1 is well mixed i.e. usable.
Anti-corrosive primer of the invention has excellent physics, chemistry and workability.
A specific embodiment is enumerated with regard to anti-corrosive primer of the invention below；
1st, raw material
Bisphenol A epoxide resin：Technical grade, Taiwan Hong Chang companies；Dispersant：Technical grade, Henkel KGaA；Defoamer：Technical grade, lotus
Blue EFKA；Anti-settling agent：Technical grade, Taiwan moral is modest；Zinc powder：Yangzhou Shuan Sheng companies；Mixed solvent：Technical grade, autogamy；Toughness reinforcing
Agent：Technical grade, German section is peaceful；Amine hardener：Technical grade, U.S.'s shell；Accelerator：Shanghai Ke Fan Chemical Co., Ltd.s；Thixotroping
Agent：Technical grade, Germany watt gram；Coupling agent：Technical grade, Dow corning.
2nd, key instrument equipment
JB90-D type powerful motor mixers, S K2 sand mills, airless spraying equipment etc..
3rd, experimental procedure
It is prepared by first component
First by mixed solvent and epoxy resin, mix in proportion, high speed dispersor stir during, in proportion according to
Secondary addition dispersant, anti-settling agent, zinc powder and aerosil；After mixing, disperse 45min to fineness less than 90 μ at a high speed
m；Under the conditions of high speed is scattered, defoamer is added, dispersion 30min, obtains final product coating finished product at a high speed after filtering and packaging.
It is prepared by second component
Amine hardener, accelerator, toughener and silane coupler are mixed in molten device and is uniformly dispersed, filtered and packaged i.e.
Can.
4th, model is prepared and performance test
It is prepared by model
Prepared by test piece carried out according to GB/T9271 regulations.Bending property and impact strength are determined should be after paint film prepares 48h
Carry out, 35 ± 2 μm of film thickness requirement.Pull open method adhesive force and determine the interval and two roads of salt-fog resistant test requirement painting, two roads between
48h, film thickness is 80 ± 5 μm, is carried out after paint film prepares 168h.
5th, performance test methods, by People's Republic of China (PRC) railroad industry standard TB/T1527-2011《Railway steel bridge is protected
Application and coating supply of material technical conditions》Requirement tested.
6th, the technical indicator of anti-corrosive primer of the present invention, as shown in table 1
Working life determines, and after being mixed in proportion with the coating first component and second component of 250 g, is transferred to be applicable with diluent and glued
Degree, is put into diameter not less than 50 mm, in container of the volume not less than 300 ml, in 23 ± 2 DEG C of relative humidity 50 ± 5% of temperature
Under conditions of place, observation mixing after the time without gelatin phenomenon.Workability is checked, spraying or when brushing, per pass paint it is dry
When film thickness reaches requirement, should be without obvious wrinkle, sagging, bubble.As shown in figure 1, iron content energy disperse spectroscopy is determined in paint film
Basic spectrogram.
In the present invention, zinc-rich paint is one of the most frequently used anticorrosive paint, it with zinc powder be electrochemistry rust resisting pigment, ring
Oxygen tree fat is base-material, and polyamide or amine additives are curing agent, are subject to suitable adjuvants, solvent and are formulated.Zinc-rich paint
Antiseptic effect mostly come from zinc powder therein, zinc has an electro-chemical activity more stronger than iron, its standard electrode potential for-
0.76v, compares iron（-0.44v）It is active.When film is corroded, zinc powder is first corroded as anode, the steel of base material
Then it is protected as negative electrode, the content height of zinc has directly influence on antiseptic property in ［ 2 ］ therefore zinc-rich paint.In phase
Zn content in the standard of pass to zinc-rich paint has clear stipulaties, by the dry film of zinc-rich paint such as in SSPCPaint-20 standards
Middle zinc content is divided into 3 grades:>=85%, 77% ~ 85% and 65% ~ 77%, and ISO12944 then specifies minimum zinc in zinc-rich paint
Powder content is 80%, and this is enough to show, is the key for ensureing zinc-rich paint antiseptic property with certain a high proportion of Zn content
One.New iron mark TB/T1527-2011 specifies special epoxy zinc-rich anti-corrosive primer, delivery time（No. 6 cups）/S：>=30, ﹤ 60；It is close
Degree：2.73g/cm3.Iron content in paint film：Nothing.Which define and can not possibly add in addition to a certain proportion of zinc powder in paint film
Plus the alternative metals pigment or filler such as ferrophosphorus powder close with its proportion.Meeting the difficult point of above-mentioned technical indicator is：Ensureing zinc
On the premise of powder content content in non-volatile part is not less than 80% ［ 1 ］, density is up to standard with delivery time index and balance why
Sample reaches density index under conditions of delivery time index is met, while zinc content content in non-volatile part is not less than
80%.Tested by selecting different zinc powder ratios, the results are shown in Table 2.
Table 2
As known from Table 2, when the ratio when zinc powder in formula reaches 80%, the Zn content in dry film reaches more than 83%, it is easy to
Meet the index that zinc content content in nonvolatile matter is not less than 80%, but density only has 2.66 g/ cm3；Zinc content is arrived
When 81%, density index meets standard just, but viscosity index value limit on the upper side；If viscosity index is gone down in limited time, density index
Standard requirement cannot be met.In addition, we are respectively 81%, 82%, 83%, 87% with Zn content carrying out with paint, coating examination is made
Plate, adhesive force, pliability and salt fog performance are detected after solidification 7d, as the unilateral corrosion of salt spray resistance of the increase film of Zn content is wide
Degree is less and less, but pliability, adhesive force are gradually reduced.Because under normal circumstances, in coating fluoropolymer resin base-material number
Amount is enough to the color stuffing in coating, and coating now is a continuous fine and close film, and works as the increase of the color stuffing amount in film
When causing that base-material is not enough to coat these color stuffing particles to certain certain value, every property of film can change.Such as zinc
Powder content is too high, and the adhesive force between paint film and ground can be caused to reduce, once corrosive medium penetrates into zinc powder surface, then can
Cause zine corrosion, so that the possibility increase of coating foaming, antiseptic property decline.Experiment shows the zinc-rich that Zn content is 82%
The indexs such as anti-corrosive properties, adhesive force, the pliability of coating are preferable.
Silane coupler influences, and silane coupler is the hybrid thing of a class silicon substrate, and basic molecular formula is:R-
(CH2)nSi(OR)3.Wherein OR is hydrolyzable group, and R- is organo-functional group.System and comprehensively silane rustless property grind
Study carefully and start from early 1990s [3], the result of study to silane corrosion mechanism shows both at home and abroad, its rust-proof mechanism and chromium passivating
Film is different.It is well known that chromium passivation film prevents corrosion of metal [4- to change the electrochemical properties of oxidation on metal surface layer
5];And the silane film for being formed at metal surface does not directly affect its oxide layer property.If corrosion product is at origin pit
Accumulation can then cause origin to lose and be passivated again, so that etch-stop process without spreading apart.In order that the arrangement between zinc powder
It is more tight, form the adhesive force of an anode zinc protective layer and promotion coating to ground.By contrast test, in the research
In, Dow corning Z-6011 silane couplers are have selected, the anti-corrosive properties ratio of the coating for as a result showing to have added amine silane coupling agent
Not plus the coating of amine silane coupling agent is higher by 1 times.Thixotropic agent, special epoxy zinc-rich anti-corrosive primer is a kind of highdensity coating,
It is required that paint has thixotropic property in itself：Viscosity is larger when i.e. coating is static, but when by shearing force（Such as stirring, painting
Dress etc.）Viscosity significantly declines, and shows good brushing performance.Solve in construction film can it is disposable into thickness, it is vertical
Surface construction not sagging, the problem that settles can be effectively prevented in storage, it is necessary to add thixotropic agent to reach thixotropic property again,
Conventional thixotropic agent has：Aerosil, organobentonite etc..Aerosil is big to viscosity influence, thickening is fast, passes through
The silanol that surface carries forms hydrogen bond and turns into thixotropic structure, and the paint thixotropy of preparation is good.Sent out in experimentation
There is obvious thickening effect when ratio reaches 0.5% or so in formula now.But the meeting when aerosil usage amount increases
Influence the balance of delivery time, density two indices up to standard, and after 24 h, the thixotropy of coating has declined, with amine
Thixotropy also declines after curing agent compounding.So main organobentonite and a small amount of gas phase dioxy with more ratio in experiment
SiClx is used as auxiliary rheological agents.By repetition test, this research has selected the thixotropic agent and Taiwan moral of German Wa Ke companies modest anti-settling
Agent.Defoamer, because special epoxy zinc-rich anti-corrosive primer amount of solid content is high, easily bubbles when stirring is constructed and steeps and be difficult
Overflow, so froth breaking is also the scabrous problem of comparing.Modest 6800 defoamer of moral is particularly well-suited to high viscosity epoxy systems and disappears
Except microvesicle, with very strong froth breaking and brokenly bubble ability, EFKA2720 can abolish larger bubble, be used cooperatively with 6800
Effect is significant, experiment is brushed by airless spraying at the construction field (site) and precoating, and coating surface is used without obvious bubble and pin hole
Cut paint film, cross section illustrates that the matching system defoaming effect is good also without abscess, and resulting compact in paint film is complete, nothing
The disadvantages such as pin hole, crackle.The influence of curing agent, curing agent is the important component of binding agent, anti-corrosion of the curing agent to paint film
The workability of performance and coating plays vital effect.Special epoxy zinc-rich anti-corrosive primer is two-component coating, it is desirable to
Curing agent used has good physical and chemical performance with the coating after resin Composition film forming, therefore, curing agent and crosslinking curing effect are
Determine the key of coating performance.Railway bearing anticorrosive coating is usually to be constructed by airless spraying on finishing line,
Workpiece after application is by low temperature drying tunnel（30-50min/70℃）Baking drying, it is desirable on the basis of antiseptic property is ensured, it is real
The dry time is short, is typically less than 5h.According to above-mentioned requirements, Shell Co. Ltd of U.S. modified amine is have selected, the curing agent has normal
The characteristics of warm viscosity is low, rate of drying has good dispersiveness, hardness to rise fast soon, in the coating, the paint film intensity after solidification
High, pliability is good, good chemical resistance.According to result of the test, the coating newly developed does solid work time only 3h.Conventional solidification
Agent is mostly the relatively low transparency liquid of viscosity, when the good epoxy resin ingredient of thixotropy is compounded with this curing agent, mixing
The thixotropy of paint vehicle can be substantially reduced, and when railway bearing anticorrosive coating is constructed, typically be hung in streamline workpiece with hook
Upper elevation construction, it is easy to sagging phenomenon occur.Experiment shows that thixotropic index is 4 epoxy resin ingredient and U.S.'s shell
After company's modified amine curing agent mixes in proportion, thixotropic index is down to less than 2.6.To reach the thickness of elevation construction single track paint film
Degree（≥80μm）, the peaceful polyamide of German section with thickener function is with the addition of in right amount during component design, itself and asphalt mixtures modified by epoxy resin
After fat component compounding, can more than 175 μm of elevation construction not sagging.
A kind of another side of the invention, preparation method of anti-corrosive primer, comprises the following steps：
Step S1：Epoxy resin and solvent are sequentially added into dispersant, thixotropic agent, zinc powder and anti-settling agent under agitation and is stirred
Mix and be uniformly mixed so as to obtain the first mixture, specifically, by epoxy resin and solvent under the mixing speed of 2000-5000r/min successively
Add dispersant, thixotropic agent, zinc powder and anti-settling agent and stir 45min to fineness less than 90 μm, obtain the first mixture；
Step S2：First mixture is added defoamer and stirred and evenly mixed under agitation and obtains component A, specifically,
30min is stirred under conditions of 2000-5000r/min；
Step S3：Curing agent, accelerator, toughener, solvent and silane coupler are uniformly mixing to obtain B component in molten device；
Step S4：Component A and B component are well mixed and can obtain anti-corrosive primer；
In sum, the invention provides a kind of anti-corrosive primer, including component A and B component；The component A includes following weight
The raw material composition of part：Epoxy resin 5-23, defoamer 0.1-2, dispersant 0.1-1, solvent 1-10, thixotropic agent 0.1-1, anti-settling agent
0.1-1.5, zinc powder 50-87；The B component includes that the raw material of following weight portion is constituted：Curing agent 30-70, toughener 1-9, promote
Enter agent 0.5-4, silane coupler 0.5-2, dispersant 0.1-0.5, defoamer 0.01-0.5, solvent 10-30 is of the invention anti-
Rust priming paint is a kind of zinc-rich anti-corrosive primer, the equal comparative superiority of index such as anti-corrosive properties, adhesive force, pliability of the anti-corrosive primer.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure that do not describe in detail to the greatest extent are construed as giving reality with the common mode in this area
Apply；Any those of ordinary skill in the art, in the case where technical solution of the present invention ambit is not departed from, all using the disclosure above
Methods and techniques content make many possible variations and modification to technical solution of the present invention, or be revised as equivalent variations etc.
Effect embodiment, this has no effect on substance of the invention.Therefore, every content without departing from technical solution of the present invention, foundation
Technical spirit of the invention still falls within the present invention to any simple modification, equivalent variation and modification made for any of the above embodiments
In the range of technical scheme protection.
Claims (8)
1. a kind of anti-corrosive primer, it is characterised in that including component A and B component；The component A includes the raw material of following weight portion
Composition：Epoxy resin 5-23, defoamer 0.1-2, dispersant 0.1-1, solvent 1-10, thixotropic agent 0.1-1, anti-settling agent 0.1-1.5,
Zinc powder 50-87；The B component includes that the raw material of following weight portion is constituted：Curing agent 30-70, toughener 1-9, accelerator 0.5-
4, silane coupler 0.5-2, dispersant 0.1-0.5, defoamer 0.01-0.5, solvent 10-30.
2. a kind of anti-corrosive primer as claimed in claim 1, it is characterised in that the component A includes the raw material of following weight portion
Composition：Epoxy resin 9.6-23, defoamer 0.5-2, dispersant 0.3-0.7, solvent 2.5-7, thixotropic agent 0.2-1, anti-settling agent 1-
1.5, zinc powder 80-87；The B component includes that the raw material of following weight portion is constituted：Curing agent 44-70, toughener 4-9, accelerator
1-4, silane coupler 1-2, dispersant 0.2-0.5, defoamer 0.01-0.5, solvent 15-30.
3. a kind of anti-corrosive primer as claimed in claim 2, it is characterised in that the component A includes the raw material of following weight portion
Composition：Epoxy resin 16, defoamer 1.2, dispersant 6, solvent 5, thixotropic agent 0.6, anti-settling agent 1.2, zinc powder 82；The B component
Raw material composition including following weight portion：Curing agent 55, toughener 7, accelerator 2.5, silane coupler 1.5, dispersant 0.3,
Defoamer 0.2, solvent 25.
4. a kind of anti-corrosive primer as described in claim 1-3 is any, it is characterised in that the epoxy resin is bisphenol A-type ring
Oxygen tree fat, the thixotropic agent is aerosil.
5. a kind of anti-corrosive primer as claimed in claim 4, it is characterised in that the component A is 10 with the mass ratio of B component：
1。
6. a kind of preparation method of anti-corrosive primer, it is characterised in that comprise the following steps：
Epoxy resin and solvent are sequentially added into dispersant, thixotropic agent, zinc powder and anti-settling agent under agitation and is stirred and evenly mixed
Obtain the first mixture；
First mixture is added defoamer and stirred and evenly mixed under agitation and obtains component A；
Curing agent, accelerator, toughener, solvent and silane coupler are uniformly mixing to obtain B component in molten device；
Component A and B component are well mixed and can obtain anti-corrosive primer.
7. a kind of preparation method of anti-corrosive primer as claimed in claim 6, it is characterised in that described by epoxy resin and solvent
Dispersant, thixotropic agent, zinc powder and anti-settling agent are sequentially added under the mixing speed of 2000-5000r/min and 45min is stirred extremely
Fineness is less than 90 μm, obtains the first mixture.
8. a kind of preparation method of anti-corrosive primer as claimed in claim 6, it is characterised in that described to stir the first mixture
Defoamer is added under the conditions of mixing and is stirred and evenly mixed and obtain component A, wherein stirring 30min under conditions of 2000-5000r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510992520.XA CN106916508A (en) | 2015-12-28 | 2015-12-28 | A kind of anti-corrosive primer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510992520.XA CN106916508A (en) | 2015-12-28 | 2015-12-28 | A kind of anti-corrosive primer and preparation method thereof |
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| CN106916508A true CN106916508A (en) | 2017-07-04 |
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| CN201510992520.XA Pending CN106916508A (en) | 2015-12-28 | 2015-12-28 | A kind of anti-corrosive primer and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108641541A (en) * | 2018-05-03 | 2018-10-12 | 大连鑫盛源农机设备制造有限公司 | A kind of nanometer modified epoxy zinc-rich paint and preparation method thereof |
| CN114574067A (en) * | 2020-11-30 | 2022-06-03 | 沈阳化工研究院有限公司 | High-adhesion zinc powder anticorrosive paint and preparation method thereof |
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| CN102321423A (en) * | 2011-10-27 | 2012-01-18 | 中国海洋石油总公司 | Heavy-duty anti-corrosion phenolic epoxy coating |
| CN102746765A (en) * | 2012-07-23 | 2012-10-24 | 河北晨阳工贸集团有限公司 | Waterborne epoxy zinc-rich primer and preparation method thereof |
| CN103409040A (en) * | 2013-08-14 | 2013-11-27 | 张家港保税区金企鹅贸易有限公司 | Waterborne epoxy zinc-rich primer |
| CN103881531A (en) * | 2014-03-10 | 2014-06-25 | 国家电网公司 | Epoxy zinc-enriched coating and preparation method thereof |
| CN104710909A (en) * | 2013-12-17 | 2015-06-17 | 中远关西涂料化工（天津）有限公司 | Flake zinc powder and nano silica doped epoxy zinc rich primer and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102321423A (en) * | 2011-10-27 | 2012-01-18 | 中国海洋石油总公司 | Heavy-duty anti-corrosion phenolic epoxy coating |
| CN102746765A (en) * | 2012-07-23 | 2012-10-24 | 河北晨阳工贸集团有限公司 | Waterborne epoxy zinc-rich primer and preparation method thereof |
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| CN108641541A (en) * | 2018-05-03 | 2018-10-12 | 大连鑫盛源农机设备制造有限公司 | A kind of nanometer modified epoxy zinc-rich paint and preparation method thereof |
| CN114574067A (en) * | 2020-11-30 | 2022-06-03 | 沈阳化工研究院有限公司 | High-adhesion zinc powder anticorrosive paint and preparation method thereof |
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