CN101880505B - Thick film type antirust coating and preparation method thereof - Google Patents
Thick film type antirust coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a thick film type antirust coating and a preparation method thereof. The coating is prepared from 85-90 parts by weight of substrate coating, 10-15 parts by weight of curing agent and 3-5 parts by weight of diluent, wherein the substrate coating is prepared from 2-30 parts of epoxy resin, 2-6 parts of petroleum resin, 40-50 parts of antirust filler, 3-5 parts of antirust pigment and 2-20 parts of solvent for the substrate coating; the curing agent is prepared from 20-30 parts of epoxy resin, 10-30 parts of aromatic diamine and 20-50 parts of solvent for the curing agent; and the diluent is prepared from 60-80 parts by weight of arene and 20-40 parts by weight of fatty alcohol. The thick film type antirust coating of the invention can be continuously cured underwater, can also keep favorable mechanical capacity and antirust capacity, can obtain favorable adhesive force even in construction on a wet surface, and can be widely applied to the field of industrial protection.
Description
Technical field
The present invention relates to a kind of coating and preparation method thereof, be specifically related to a kind of thick film type antirust coating and preparation method thereof.
Background technology
Under the pulling of China's economic strong growth, Chinese coating industry presents the situation of rapid growth in recent years.
Comprise the epoxy ester series of epoxy-functional and the coating composition of hydrocarbon resin polymer and aminated compounds application is very widely arranged in industry and daily life.These coating compositions generally include the epoxy ester series multipolymer and the solution of aminated compounds in organic solvent of epoxy-functional.These coating generally are equipped with inorganic antirust color stuffing by epoxy resin and ammonia solidifying agent as sticker, are used for the application of antirust, anti-corrosive, and such reaction can be carried out usually at normal temperatures.
From its demand in industry, epoxy rust-proof paint is widely used in marine steelwork, oil drilling platform, seawall and wind power equipment surface protection as a kind of medium of surfacecti proteon.Because its harsh physical environment and applied environment, corrosion can cause enormous economic loss, therefore protects metallic surfaces such as iron and steel, the slow corrosion of resistance, and increasing the service life is an important task.For land moist position and marine steelwork, adopt heavy-duty coating to protect the most effective, economic means commonly used and main.But because the singularity of land moist position and sea climate, general epoxy coating is difficult to stable curing under the high environment of humidity.More just like the steelwork that is in the tidal range position, to bear the frequent of tidewater fluctuation throughout the year and impact, general epoxy coating coating surface can show and return white, variable color, paint film disadvantage such as softening, has a strong impact on anticorrosion, rustless property, and is also unfavorable attractive in appearance.
Summary of the invention
One of technical problem to be solved by this invention provides a kind of thick film type antirust coating, and this coating has good weathering resistance, water tolerance, and advantages such as wear resistance, strong adhesion can be widely used in the field of industrial protection.
Two of technical problem to be solved by this invention provides a kind of preparation method of thick film type antirust coating.
For solving the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of thick film type antirust coating, form by 85～90 weight part matrix coating, 10～15 weight part solidifying agent and 3～5 parts by weight diluent:
(1) said matrix coating, form by weight by following component:
2～30 parts of epoxy resin
2～6 parts of petroleum resin
40～50 parts of antirust fillers
3～5 parts of rust-stabilising pigments
Matrix coating is with 2～20 parts of solvents
Said epoxy resin is known as the matrix resin of coating in paint field.Epoxy resin is organic polymerization and the thing that contains two or more epoxide groups in the general reference molecule; Contain active epoxide group in the molecular chain and be its characteristic; Epoxide group can be positioned at the end, centre of molecular chain or structure circlewise; Fusing point can be born the effect of coated substrate resin under normal temperature and lower high temperature between 145 ℃～155 ℃.
Preferred epoxy resin is the bisphenol type epoxy solid resin, and the gel infiltration permeation chromatography records molecular weight about 350, and epoxy equivalent (weight) is between 450g/eq～500g/eq.The another kind of epoxy resin that uses be oxirane value between 183g/eq～189g/eq, preferred especially 186g/eq.The material that can be used as resin matrix that the third is suitable is with the reaction product of (methyl) vinylformic acid and mono-epoxy compounds such as branched paraffin hydroxyl carboxylic acid glycidyl ester (being called for short Cardura E).
Said petroleum resin, English name are petroleum resin, and its ingredient all is a hydrocarbon polymer.Petroleum resin, its source is with by product C5 in the petroleum cracking process for petroleum derivative; The C9 cut is a raw material; With sulfuric acid, aluminum trichloride (anhydrous), boron trifluoride etc. is catalyzer, and a kind of thermoplastic resin that makes through heated polymerizable has excellent water tolerance and corrosion resistance nature.Petroleum resin mainly contain following several kinds of forms according to the difference of raw material: group aliphatic resin (C5), alicyclic resin (DCPD), aromatic resin (C9), aliphatic/aromatic copolymer resins (C5/C9) and hydrogenated petroleum resin.Among the present invention preferred petroleum resin be softening temperature about 120 ℃, proportion is between 1.05～1.10, acid number is no more than the low-molecular-weight petroleum resin of 0.1KOH mg/g.
Described antirust filler is selected from a kind of or its mixture in permanent white, lime carbonate, talcum powder, silicon-dioxide and the mica powder.
Said rust-stabilising pigment is selected from a kind of or its mixture in titanium oxide, yellow oxide of iron and the iron oxide black.
Described matrix coating is used solvent, is selected from aromatic hydrocarbon, alkanone or alcohol.Further, described matrix coating is selected from a kind of or its mixture in Solvesso 100 aromatic hydrocarbon solvents, acetone, methylethylketone, MIBK, phenylcarbinol, butanols and the isopropylcarbinol of benzene,toluene,xylene, m-xylene, Exxon Mobil company with solvent.Preferably, described matrix coating uses the mixture of solvent as YLENE and MIBK, and the mass ratio of YLENE and MIBK is (5～7): (2～5).
In the described matrix coating, also can comprise other conventional paint additives, like thick change control agent, glidant.Wherein thick change control agent is THIXCIN, organobentonite or polymeric amide, and glidant is silicone based flow agent or acrylic acid or the like flow agent.
(2) said solidifying agent, form by weight by following component:
20～30 parts of epoxy resin
10～30 parts of aromatic diamines
Solidifying agent is with 20～50 parts of solvents
Described epoxy resin, bisphenol f type epoxy resin preferably, preferred epoxy equivalent (weight) is between 150g/eq～200g/eq.
Described aromatic diamine is m-xylene diamine or polyetheramine.
The use of binary or polyhydric aliphatic amine also is known in paint field.Mostly the amine that uses in the paint field is binary or polyhydric aliphatic amine or binary or polynary aromatic amine.The suitable binary or the example of polyhydric aliphatic amine are quadrol, diethylenetriamine, triethylene tetramine etc.The suitable binary or the example of polynary aromatic amine are mphenylenediamines, a m-xylene diamine and an amino n n dimetylaniline.Other suitable amines comprise polyetheramine.
Preferred amine is an aromatic diamine, and per molecule has two amino.Particularly preferably be m-xylene diamine, molecular formula is C8H12N2, and amine equivalent is 34g/eq, and purity is preferably greater than 90%, preferred especially 99.5% m-xylene diamine.
Preferred polyetheramine is amino-terminated alcohol ether, and is like trimethylol propane triamino polyethers, amino-terminated.The low-viscosity alcohol ether of preferred molecular weight between 400～500.
Described solidifying agent uses solvent to be a kind of or its mixture in aromatic hydrocarbon, the Fatty Alcohol(C12-C14 and C12-C18).Further, described solidifying agent is made up of 19～35 weight part aromatic hydrocarbon, 1～15 weight aliphatic alcohol part with solvent.Wherein, described aromatic hydrocarbon is selected from a kind of or its mixture in Solvesso100 aromatic hydrocarbon solvent, toluene and the YLENE of Exxon Mobil company, and said Fatty Alcohol(C12-C14 and C12-C18) is selected from a kind of or its mixture in butanols and the isopropylcarbinol.
(3) thinner
Said thinner is that 60～80 weight part aromatic hydrocarbon and 20～40 weight part Fatty Alcohol(C12-C14 and C12-C18) are formed.Preferably, said thinner is that 75 weight part aromatic hydrocarbon and 25 weight part Fatty Alcohol(C12-C14 and C12-C18) are formed.Wherein, described aromatic hydrocarbon is selected from a kind of or its mixture in Solvesso 100 aromatic hydrocarbon solvents, toluene and the YLENE of Exxon Mobil company, and said Fatty Alcohol(C12-C14 and C12-C18) is selected from a kind of or its mixture in butanols and the isopropylcarbinol.Optimum said thinner is the mixture of YLENE and isopropylcarbinol.
Thick film type antirust coating of the present invention can adopt the conventional method of the industry to prepare.Elder generation prepares matrix coating, solidifying agent and thinner respectively, in proportion matrix coating, solidifying agent and thinner is mixed to get final product again.Matrix coating can adopt epoxy resin, petroleum resin, antirust filler, rust-stabilising pigment and matrix coating are heated to 40 ℃～70 ℃ with solvent, mixes.Solidifying agent can adopt epoxy resin, aromatic diamine and solidifying agent are heated to 90 ℃～100 ℃ with solvent, mixes.Thinner can be simply at room temperature mixes aromatic hydrocarbon and Fatty Alcohol(C12-C14 and C12-C18) and gets final product.
Special, the present invention also provides a kind of preparation method of thick film type antirust coating, is made up of following step:
(1) independent preparation matrix coating:
Epoxy resin, petroleum resin, antirust filler, rust-stabilising pigment were slowly added in 60 minutes in the reactor drum successively, heated and stirred, raise the temperature to 50 ℃～65 ℃ after, keep this temperature and stirred 30～45 minutes;
Speed with 5 ℃ of coolings in per 3 minutes is cooled to 30 ℃～40 ℃, adds matrix coating and uses solvent, mixes and stirs 30～40 minutes, is cooled to room temperature;
(2) independent preparation solidifying agent:
Epoxy resin and aromatic diamine and partly solidified dose are mixed with stirring solvent, and heated and stirred raises the temperature to 90 ℃～100 ℃, and keep this temperature and stirred 50～60 minutes,
Fall 0.5 ℃～1 ℃ speed with PM, be cooled to 30 ℃～40 ℃, the solidifying agent that adds surplus use solvent, mixes stirring 30～40 minutes, is cooled to room temperature;
(3) independent preparation thinner:
Aromatic hydrocarbon and Fatty Alcohol(C12-C14 and C12-C18) are mixed, stirred 30～40 minutes;
(4) preparation coating:
The matrix coating of step (1) preparation, the solidifying agent of step (2) preparation and the thinner of step (3) preparation are mixed.
Thick film type antirust coating of the present invention can be used as coating, adopts ordinary method, is coated with like brushing, roller coat or spraying method.The coating of coating can be solidified at ambient temperature voluntarily.This coating is used for the industrial protection neighborhood, can be applicable to marine steelwork, oil drilling platform, seawall and wind power equipment surface protection.
Thick film type antirust coating of the present invention; Overcome the early stage water tolerance of general epoxy coating, the immersion back is easy to change, can't normally solidify shortcomings such as difference; Can solidify continuously under water; Favorable mechanical performance and antiseptic property have also been kept simultaneously, even, also can obtain good sticking power at the surface construction of humidity.
Embodiment
Embodiment 1
In an embodiment, adopt following abbreviation or designate:
YD-128 epoxy resin E1
YD-75 epoxy resin E2
The BS-F bisphenol f type epoxy resin
The P-BLACK black iron oxide pigment
BISPHENOL A diphenylolpropane
PETROLEUM RESIN petroleum resin
The thick change auxiliary agent 1 of THIX-1 hydrogenated castor oil type
The thick change auxiliary agent 2 of the cured type of THIX-2 polymeric amide
E-10 branched paraffin hydroxyl carboxylic acid glycidyl ester
TiO
2Rutile type Titanium Dioxide
SiO
2Silicon-dioxide (Silicon Dioxide)
The TALC talcum powder
BASO
4Permanent white
XYL ENE YLENE
The IBA isopropylcarbinol
The MXDA m-xylene
The JEF-T polyetheramine
Hie-54 is available from the curable epoxide promotor of KEUMJUNG
The BENZYLALCOHOL phenylcarbinol
The table 1 first component formula table
| Name of material | Usage quantity Wt% |
| BENZYL?ALCOHOL | 0.4 |
| P-BLACK | 1.8 |
| E10 | 2 |
| THIX-1 | 0.3 |
| THIX-2 | 1.5 |
| BASO4 | 9.0 |
| XYLENE | 6.0 |
| IBA | 2.5 |
| TALC | 22.0 |
| SiO2 | 20.0 |
| YD128 | 22.0 |
| PETROLEUM?RESIN | 6.0 |
| YD-75 | 6.5 |
The table 2 second component formula table
Table 3 the 3rd component thinner composition table
| Material is called for short | XYL | IBA |
| Name of material | YLENE | Isopropylcarbinol |
| Usage quantity Wt% | 30.0 | 70.0 |
Synthetic first component
First component formula that is used for this test provides at table 1, and first component adopts following steps to synthesize.
In reactor drum that whisking appliance, water of condensation chuck and temperature regulating device are housed or reaction kettle; Resin system and filler systems were added with even velocity in 60 minutes successively; Open water of condensation and high-speed stirring simultaneously; Raise the temperature to 50 ℃～65 ℃ gradually, and make temperature maintenance in this temperature range, and kept 30～45 minutes through input or the flow velocity of regulating stirring velocity and water coolant.Through regulating the input or the flow velocity of stirring velocity and water coolant, the bulk temperature of material is descended with even velocity once more, when waiting to reduce to 30 ℃～40 ℃, add volatile organic solvent successively, to reduce the system viscosity.With mixture restir 30～40 minutes, treat about its cool to room temperature at last, can pack, discharging.
Synthetic second component
Second component formula that is used for this test provides at table 2, and second component adopts following steps to synthesize.
In reactor drum or reaction kettle that whisking appliance, heating unit, water of condensation chuck and temperature regulating device are housed, the material that table 2 fs is provided according to shown in ratio thoroughly mix.When adding material, open heating unit and high-speed stirring.Raise the temperature to 90 ℃～100 ℃ gradually, and through regulate stirring velocity, open a small amount of water coolant and regulate input or flow velocity, make temperature maintenance in this temperature range, and kept 50～60 minutes.
Under the situation that keeps temperature-stable, slowly add the subordinate phase material.Through regulating the input or the flow velocity of stirring velocity and water coolant, the bulk temperature of material is descended with even velocity once more, when waiting to reduce to 30 ℃～40 ℃, add volatile organic solvent, to reduce the system viscosity.With mixture restir 30～40 minutes, treat about its cool to room temperature at last, can pack, discharging.
Synthetic the 3rd component
In whisking appliance reactor drum or reaction kettle are housed, with table 3 material according to shown in ratio thoroughly mix.When adding material, open high-speed stirring.After at the uniform velocity stirring 30～40 minutes, can pack, discharging.
Test case 1
With the mode of sandblast surface derusting with cold-rolled steel sheet or stainless steel plate; Should not have dirt settlings such as visible grease, dirt, oxide debris, iron rust and paint coating with cleaning requirements Sa2.5-steel surface, the slight color spot that any residual vestige should only be point-like or striated is good (GB8923-1988 " steel surface rusty degree and derusting grade before the application ").Clean test plate (panel) with quick volatile organic solvent, like acetone.
With first component and the second component thorough mixing, obtain the homogeneous phase solution of resin and amine, can pass through mechanically mixing, for example the means that shake up of mechanical stirring, machinery are mixed.Treat to add behind the thorough mixing the 3rd component through the second time mechanically mixing obtain the moderate dispersion-s of viscosity.Wherein, the mass ratio of the first component matrix coating, the second component solidifying agent and the 3rd component thinner is 90: 10: 5.
The preferential mode of spraying that adopts is coated on it on test plate (panel) for preparing, and obtains 1000 microns～1200 microns wet film, is coated with one day after measure and can obtain the dry film about 700～800 microns.The thickness of concrete dry film is decided according to the quality that adds the 3rd component diluted system, and surface cure is even, and nothing is obviously returned white, bubbles.
Test case 2
With the mode of sandblast surface derusting with cold-rolled steel sheet or stainless steel plate; Should not have dirt settlings such as visible grease, dirt, oxide debris, iron rust and paint coating with cleaning requirements Sa2.5-steel surface, the slight color spot that any residual vestige should only be point-like or striated is good (GB8923-1988 " steel surface rusty degree and derusting grade before the application ").Clean test plate (panel) with quick volatile organic solvent, like acetone.
With first component and the second component thorough mixing, obtain the homogeneous phase solution of resin and amine, can pass through mechanically mixing, for example the means that shake up of mechanical stirring, machinery are mixed.Treat to add behind the thorough mixing the 3rd component through the second time mechanically mixing obtain the moderate dispersion-s of viscosity.Wherein, the mass ratio of the first component matrix coating, the second component solidifying agent and the 3rd component thinner is 85: 15: 3.
The mode of preferential employing spraying is solidified ethyl zinc silicate pre-treatment priming paint SIGMAWELD 165CN with two component wet steams of 13～15 microns, and available from the prompt coating in Pompeii, the indication use down according to product description is coated on the test plate (panel) for preparing as priming paint.
After treating solidifying priming paint, the dispersion-s of three components that the mode of employing spraying will make is coated on the test plate (panel) for preparing, and obtains 1000 microns～1200 microns wet film; At once test plate (panel) is immersed in the water; Be coated with one day after measure and can obtain the dry film about 700～800 microns, the thickness of concrete dry film is according to the quality that adds the 3rd component diluted system and decide, and surface cure is even; Nothing is obviously returned white, bubbles.
Embodiment 2
Take by weighing the component of the corresponding embodiment 2 of table 4, table 5 and table 6.
(1) the preparation first component matrix coating: epoxy resin, petroleum resin, antirust filler, rust-stabilising pigment and matrix coating are heated to 40 ℃～70 ℃ with solvent, mix.
(2) the preparation second component solidifying agent: epoxy resin, aromatic diamine and solidifying agent are heated to 90 ℃～100 ℃ with solvent, mix.
(3) preparation the 3rd component thinner: at room temperature aromatic hydrocarbon and alcohol are mixed and get final product.
In mass ratio is the first component matrix coating, the second component solidifying agent and the 3rd component thinner that 85: 15: 3 ratio takes by weighing above-mentioned preparation, mixes to get final product.
The table 4 thick film type antirust coating first component matrix coating composition list position: kilogram
The table 5 thick film type antirust coating second component hardener formula list position: kilogram
Table 6 thick film type antirust coating the 3rd component thinner composition list position: kilogram
Embodiment 3
Take by weighing the component of the corresponding embodiment 3 of table 4, table 5 and table 6.Adopt the method for embodiment 2 to prepare the first component matrix coating, the second component solidifying agent and the 3rd component thinner respectively.
In mass ratio is the first component matrix coating, the second component solidifying agent and the 3rd component thinner that 87: 12: 3 ratio takes by weighing above-mentioned preparation, mixes to get final product.Can make thick film type antirust coating of the present invention.
Embodiment 4
Take by weighing the component of the corresponding embodiment 4 of table 4, table 5 and table 6.Adopt the method for embodiment 2 to prepare the first component matrix coating, the second component solidifying agent and the 3rd component thinner respectively.
In mass ratio is the first component matrix coating, the second component solidifying agent and the 3rd component thinner that 90: 10: 5 ratio takes by weighing above-mentioned preparation, mixes to get final product.Can make thick film type antirust coating of the present invention.
Embodiment 5
Take by weighing the component of the corresponding embodiment 5 of table 4, table 5 and table 6.Adopt the method for embodiment 2 to prepare the first component matrix coating, the second component solidifying agent and the 3rd component thinner respectively.
In mass ratio is the first component matrix coating, the second component solidifying agent and the 3rd component thinner that 85: 10: 5 ratio takes by weighing above-mentioned preparation, mixes to get final product.Can make thick film type antirust coating of the present invention.
Embodiment 6
Take by weighing the component of the corresponding embodiment 6 of table 4, table 5 and table 6.Adopt the method for embodiment 2 to prepare the first component matrix coating, the second component solidifying agent and the 3rd component thinner respectively.
In mass ratio is the first component matrix coating, the second component solidifying agent and the 3rd component thinner that 90: 15: 3 ratio takes by weighing above-mentioned preparation, mixes to get final product.Can make thick film type antirust coating of the present invention.
Embodiment 7
Take by weighing the component of the corresponding embodiment 7 of table 4, table 5 and table 6.Adopt the method for embodiment 2 to prepare the first component matrix coating, the second component solidifying agent and the 3rd component thinner respectively.
In mass ratio is the first component matrix coating, the second component solidifying agent and the 3rd component thinner that 88: 12: 4 ratio takes by weighing above-mentioned preparation, mixes to get final product.Can make thick film type antirust coating of the present invention.
Embodiment 8
Take by weighing the component of the corresponding embodiment 8 of table 4, table 5 and table 6.Adopt the method for embodiment 2 to prepare the first component matrix coating, the second component solidifying agent and the 3rd component thinner respectively.
In mass ratio is the first component matrix coating, the second component solidifying agent and the 3rd component thinner that 85: 15: 5 ratio takes by weighing above-mentioned preparation, mixes to get final product.Can make thick film type antirust coating of the present invention.
Embodiment 9
Take by weighing the component of the corresponding embodiment 9 of table 4, table 5 and table 6.Adopt the method for embodiment 2 to prepare the first component matrix coating, the second component solidifying agent and the 3rd component thinner respectively.
In mass ratio is the first component matrix coating, the second component solidifying agent and the 3rd component thinner that 90: 15: 5 ratio takes by weighing above-mentioned preparation, mixes to get final product.Can make thick film type antirust coating of the present invention.
Claims (7)
1. a thick film type antirust coating is characterized in that, is made up of 85～90 weight part matrix coating, 10～15 weight part solidifying agent and 3～5 parts by weight diluent, wherein
Said matrix coating, form by weight by following component:
Said solidifying agent, form by weight by following component:
20～30 parts of epoxy resin
10～30 parts of aromatic diamines
Solidifying agent is with 20～50 parts of solvents
Said thinner is made up of 60～80 weight part aromatic hydrocarbon and 20～40 weight part Fatty Alcohol(C12-C14 and C12-C18);
Described matrix coating uses the mixture of solvent as YLENE and MIBK, and the mass ratio of YLENE and MIBK is (5～7): (2～5).
2. thick film type antirust coating as claimed in claim 1 is characterized in that:
Said epoxy resin in the said matrix coating is the bisphenol type epoxy solid resin;
Described antirust filler in the said matrix coating is selected from a kind of or its mixture in permanent white, lime carbonate, talcum powder, silicon-dioxide and the mica powder;
Said rust-stabilising pigment in the said matrix coating is selected from a kind of or its mixture in titanium oxide, yellow oxide of iron and the iron oxide black.
3. thick film type antirust coating as claimed in claim 1 is characterized in that:
Said epoxy resin in the said solidifying agent is bisphenol f type epoxy resin;
Said aromatic diamine in the said solidifying agent is a m-xylene diamine;
Said solidifying agent in the said solidifying agent uses solvent to be a kind of or its mixture in aromatic hydrocarbon, the Fatty Alcohol(C12-C14 and C12-C18).
4. thick film type antirust coating as claimed in claim 3 is characterized in that: the said solidifying agent in the said solidifying agent is made up of 19～35 weight part aromatic hydrocarbon, 1～15 weight part Fatty Alcohol(C12-C14 and C12-C18) with solvent.
5. thick film type antirust coating as claimed in claim 4; It is characterized in that: the solidifying agent in the said solidifying agent is selected from a kind of or its mixture in Solvesso100 aromatic hydrocarbon solvent, toluene and the YLENE of Exxon Mobil company with the aromatic hydrocarbon in the solvent, said Fatty Alcohol(C12-C14 and C12-C18) is selected from a kind of or its mixture in butanols and the isopropylcarbinol.
6. thick film type antirust coating as claimed in claim 1; It is characterized in that: the aromatic hydrocarbon in the said thinner is selected from a kind of or its mixture in Solvesso 100 aromatic hydrocarbon solvents, toluene and the YLENE of Exxon Mobil company, and said Fatty Alcohol(C12-C14 and C12-C18) is selected from a kind of or its mixture in butanols and the isopropylcarbinol.
7. the preparation method of a thick film type antirust coating as claimed in claim 1, be made up of following step:
(1) independent preparation matrix coating:
Epoxy resin, petroleum resin, antirust filler, rust-stabilising pigment were slowly added in 60 minutes in the reactor drum successively, heated and stirred, raise the temperature to 50 ℃～65 ℃ after, keep this temperature and stirred 30～45 minutes;
Speed with 5 ℃ of coolings in per 3 minutes is cooled to 30 ℃～40 ℃, adds matrix coating and uses solvent, mixes and stirs 30～40 minutes, is cooled to room temperature;
(2) independent preparation solidifying agent:
Epoxy resin and aromatic diamine and partly solidified dose are mixed with stirring solvent, and heated and stirred raises the temperature to 90 ℃～100 ℃, and keep this temperature and stirred 50～60 minutes,
Fall 0.5 ℃～1 ℃ speed with PM, be cooled to 30 ℃～40 ℃, the solidifying agent that adds surplus use solvent, mixes stirring 30～40 minutes, is cooled to room temperature;
(3) independent preparation thinner:
Aromatic hydrocarbon and Fatty Alcohol(C12-C14 and C12-C18) are mixed, stirred 30～40 minutes;
(4) preparation coating:
The matrix coating of step (1) preparation, the solidifying agent of step (2) preparation and the thinner of step (3) preparation are mixed.
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