CN110484094A - A kind of preparation method of antirust weather-proof functionally gradient type bottom surface integrative paint and coating - Google Patents
A kind of preparation method of antirust weather-proof functionally gradient type bottom surface integrative paint and coating Download PDFInfo
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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
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- 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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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Abstract
The invention discloses the preparation methods of a kind of antirust weather-proof functionally gradient type bottom surface integrative paint and coating, belong to chemical material technical field.Including Resin A, resin B, pigments and fillers, ultraviolet absorber, auxiliary agent, solvent and curing agent, the mass fraction of each component are as follows: 40~70 parts of Resin A；40~70 parts of resin B；30~250 parts of pigments and fillers；0~5 part of ultraviolet absorber；3~10 parts of auxiliary agent；50~100 parts of solvent；80~140 parts of curing agent；Wherein, the Resin A is polysiloxane modified epoxy resin；The resin B is epoxy resin.Coating of the invention coating material be made only need single layer coating i.e. can reach traditional bottom, in, face multilayered structure coating system to the protection effect of substrate, realize the functionally gradient of signal layer coating, coating has significant weatherability and good antisepsis simultaneously.
Description
Technical field
The invention belongs to chemical material technical fields, and the specifically present invention is a kind of antirust weather-proof functionally gradient type bottom surface
The preparation method of integrative paint and coating.
Background technique
The weaponry that the country is deployed to Nansha Islands at present faces high temperature, high humidity, with high salt, intensive ultraviolet climatic environment,
Its corrosion protection steps still using traditional bottom, in, the conventional polyurethanes protective coating system of face multi-layer structure design, warp
The practical application gone through under the high ultraviolet radiation environment of Nansha Islands proves: less than 5 years service life of existing protective coating system, frequency
Numerous maintenance work seriously limits the fighting capacity of China's weaponry.
China's Nansha Islands naval air environment has the special natural conditions such as salt fog weight, humidity are high, sunshine is strong, steel
The substrates such as iron seriously corroded in such environmental form can effectively improve the antiseptic property of substrate by the protection of coating.
China be deployed to the weaponry corrosion protection steps of Nansha Islands using traditional bottom, in, face multilayered structure, i.e. bottom
Qi Caiyong epoxy zinc rich primer, priming paint using epoxy phosphate yellow zinc chromate primer paint, epoxy zinc rich primer, zinc-rich coating and hot spray painted zinc/
Aluminium-plated coating.Wherein zinc-rich coating includes ethanol-soluble type zinc-rich coating and waterborne inorganic einc-rich primer；Intermediate coat uses
Epoxy micaceous iron intermediate coat, epoxy micaceous iron intermediate coat have excellent shielding properties, mechanical property and roughness appropriate and and face
It is good to paint matching；Finishing coat uses polyurethane finish, and polyurethane finish has stronger weatherability, the work of main anti-ultraviolet aging
With.But due to system palpus multiple coating, cause process various, construction, maintenance operation are complicated, and coating performance is vulnerable to construction water
The conditions such as flat, climatic environment influence, and coating life is caused to fail to achieve the desired results.
Functionally graded material (functionally graded material, FGM) refers to that one kind is wanted in structure and composition
Continuous or quasi-continuous variation on element changes and the heterogeneous material of gradual change to obtain performance corresponding to structure and composition.At present
Research contents in relation to functionally gradient material (FGM) includes following 3 aspects: (1) carrying out design on material structure and optimization；(2) pass through centainly
Composite means and control method prepare functionally gradient material (FGM)；(3) performance evaluation is carried out, in inspection and amendment design and preparation process
Technical parameter and process conditions.
Some scientific research institutions, China and institution of higher learning since the 1990s the research to functionally gradient coating,
And the research and development of functionally gradient coating national " 863 " plan is included in.Harbin Institute of Technology, Wuhan science and engineering are big
The units such as, Huazhong University of Science and Technology, Beijing Aviation research institute, Shanghai silicate research institute have successively carried out the research work of this respect
Make.In addition, the units such as Zhejiang University and Nanjing University also carried out grade thermoelectric material in terms of research and achieve some grind
Study carefully achievement.
Through retrieving, Chinese Patent Application No. 201410652035.3, the patent that application publication date is on 2 25th, 2015
Application documents disclose a kind of gradient composite structure transparent hydrophobic coating and preparation method thereof.The gradient composite structure of the patent
Transparent hydrophobic coating has both transparent and super-hydrophobic double grading, by be arranged successively from top to bottom epoxy bottom surface adhesive layer,
The hydrophobic middle layer of alkylalkoxy silane, surface modified function layer composition, but need the hydrophobic middle layer of alkylalkoxy silane
Solution is coated in repeatedly on the adhesive layer of epoxy bottom surface, can not achieve coating self demixing, and complex process is difficult to promote.
For another example, Chinese Patent Application No. 201510718607.8, application publication date are the patent Shen on January 13rd, 2016
Please file disclose a kind of weather-proof epoxy coating and preparation method thereof.The coating of the patent, by weight by following components group
At: 30-32 parts of modified epoxy polymer, 20-24 parts of polyorganosiloxane resin polymer, Si modification alicyclic ring amine epoxy curing agent
10-14 parts, 25-27 parts of Si modification polyamide curing agent, 1-3 parts of silane coupling agent, 2-4 parts of coloring pigment, rust resisting pigment 1-2
Part, 6-8 parts of inorganic filler, 0.5-1 parts of ultraviolet absorbing agent, 0.3-0.5 parts of dispersion moisture agent, 0.3-0.5 parts of thickener, defoaming
0.4-0.6 parts and levelling agent 0.1-0.3 parts of agent.The coating good weatherability, can be used as priming paint and finishing coat uses.The invention also phase
Preparation method should be provided.But the modified epoxy that the epoxy coating uses cannot learn its specific structure, in turn
Also how its compatibility with polyorganosiloxane resin can not be learnt, and the coating selectable curing agent model in the curing process
It encloses small.
Therefore, need to develop the preparation method of a kind of antirust weather-proof functionally gradient type bottom surface integrative paint and coating.
Summary of the invention
1. to solve the problems, such as
Aiming at the problem that the weather-proof equal protective coatings system of existing antirust is multi-layer structure design, applying for coating is not only resulted in
Process is tedious for work, and the service life of protective coating is not also high, needs periodically often to repair, the present invention provides a kind of weather-proof function of antirust
Gradient type bottom surface integrative paint, according to the difference of substrate, forms functionally gradient after coating coating by optimizing formulation for coating material
Inhomogeneous structure, i.e. coating outer surface side has many advantages, such as ageing-resistant, long-life, dirt-resistant self-cleaning and waterproof, and in coating
Surface side be then it is corrosion-resistant, adhesive property is good, the lower polymer of price, while realizing to the mesh of weaponry multiple-protection
's.
The present invention also provides a kind of preparation methods of antirust weather-proof functionally gradient type bottom surface Integrative Coating, are used for the South Sea
Anti-corrosion, anti-aging effect are played in the protection of steel substrate weaponry under islands and reefs environment, reduce the working procedure of coating, reduce
Cost makes up conventional coatings structural system deficiency, extends correlative protection object service life.
2. technical solution
To solve the above-mentioned problems, the technical solution adopted in the present invention is as follows:
A kind of antirust weather-proof functionally gradient type bottom surface integrative paint, including Resin A, resin B, pigments and fillers, UV absorption
Agent, auxiliary agent, solvent and curing agent, the mass fraction of each component are as follows:
Wherein, the Resin A is polysiloxane modified epoxy resin；The resin B is epoxy resin.
Further, the resin B is bisphenol A epoxide resin, cycloaliphatic epoxy resin or novolac epoxy resin.
Further, the Resin A and resin B mass ratio are 1:(1~1.5).
Preferably, the Resin A and resin B mass ratio are 1:(1~1.3).
Further, the pigments and fillers include but is not limited to anticorrosive packing, barite, laminal filter, blanc fixe and
Pigment.
Further, the quality of the pigments and fillers accounts for the 10%~45% of entire coating system gross mass,
Preferably, the quality of the pigments and fillers accounts for the 20%~40% of entire coating system gross mass, what this range obtained
Coating has better antiseptic property.
Further, the ultraviolet absorber is one of UV-292, UV-928, UV-1130 and UV-123 or two
Kind or more composition.
Further, the auxiliary agent includes but is not limited to dispersing agent, anti-settling agent, wherein the dispersing agent is that moral is modest
BYK-110 and/or BYK-320, the anti-settling agent be one of fumed silica, organobentonite and polyamide or
Two kinds or more of composition.
Further, the solvent is the group of one or both of dimethylbenzene, n-butanol and butyl acetate or more
Close object.
Further, the curing agent is one kind of polyamide curing agent, pnenolic aldehyde amine hardener and aliphatic firming agent
Or two kinds or more of composition.
A kind of preparation method of antirust weather-proof functionally gradient type bottom surface Integrative Coating, step are as follows:
(1) Resin A and resin B are mixed in proportion, is stirred 25~35 minutes, control material temperature at 50 DEG C hereinafter, being made point
Dissipate uniform epoxy resin base；
(2) by step (1) epoxy resin base and solvent be uniformly mixed, auxiliary agent, ultraviolet absorber is then added and matches
Epoxy resin base solution is made；
(3) pigments and fillers are added in the obtained epoxy resin base solution of step (2), are stirred 25~35 minutes, control
Material temperature processed is at 50 DEG C hereinafter, finely dispersed mill base solution is made；
(4) curing agent is added in the mill base solution of step (3), is stirred evenly, using brushing, spraying or roller coating technology,
Coated on substrate, place naturally；
(5) by the drying substrates of coating mill base solution in step (4), curing of coating can must have the weather-proof function of antirust
Gradient type bottom surface Integrative Coating.
Further, the step (1) and the middle revolving speed stirred of step (3) are 1500~2800 turns/min；The step
(5) in, the temperature of dry environment is 5 DEG C~40 DEG C；The humidity of dry environment is less than 85%.
3. beneficial effect
Compared with the prior art, the invention has the benefit that
(1) coating of the invention is a kind of integrated coating simultaneously with superior weather resistance and rustless property, tool
There is construction is simple, is not necessarily to complex device, cost is relatively low；Coating material be made only need single layer coating i.e. can reach traditional bottom, in, face
Protection effect of the multilayered structure coating system to substrate；Coating of the invention can be applicable under high humidity, strong ultraviolet radioactive environment, energy
The corrosion protection cost under the environment is reduced, coating construction and maintenance cost, economy with higher of enhancing product performance are saved
Benefit；Therefore illustrate that coating of the present invention is able to satisfy the deep-etching ring that the South Sea is chronically at salt fog, high temperature, high humidity, high solar irradiation
Border, to realize the anti-corrosion effect of entire painting design, while the coating more can be widely applied to bridge, marine worker etc. and need height resistance to
In the environment for waiting protection；
(2) preparation method of coating of the present invention has construction is simple, is not necessarily to complex device, low in cost；Be made material at
Film property is good, compact structure, has good ultraviolet resistance-hydrothermal aging performance, and salt spray resistance with higher and seawater impregnate
Performance, salt spray resistance aging and can reach 2000h or more, and resistance to ultraviolet-damp and hot artificial accelerated aging reaches 1500h or more；
(3) present invention uses homemade silicone-modified epoxy resin as one of resin binder, with another asphalt mixtures modified by epoxy resin
Aliphatic radical material compatibility is preferable, and siloxane-modified resins segment can be moved to coating surface layer during curing of coatings, forms table
Face is weather-proof, bottom surface corrosion-resistant functionally gradient coating.Consolidate in addition, various polyamide, phenolic aldehyde amine and aliphatic can be selected in the present invention
Agent, curing agent range of choice are bigger；
(4) it the present invention provides antirust weather-proof functionally gradient type bottom surface integrative paint, has selected to substrate affinity, pole
The property epoxy resin different with compatibility is blended, the intercrossed network type functionally gradient material (FGM) (IPN- in resin solidification cross-linking process
FGM), the functionally gradient of signal layer coating is realized, wherein the epoxy resin segment containing polysiloxanes is led by since polarity acts on
It is distributed in coating surface layer, durability of coating is made to be significantly improved；Coating internal layer is fine and close epoxy resin, cooperates anti-corrosion face
The effect of filler makes coating have good corrosion-resistant effect.In addition, the weather-proof functionally gradient type of antirust of the present invention bottom surface is integrated
The preparation method of coating has construction is simple, is not necessarily to complex device, low in cost；It is good that material filming is made, and has higher
Shock resistance and adhesive force；Reef in Chinese South Sea equipment can be simplified using this antirust weather-proof functionally gradient type bottom surface Integrative Coating
The coating working procedure of equal harsh environments equipment corrosion protection saves coating construction time and expense, economic effect with higher
Benefit.
Detailed description of the invention
Fig. 1 is the structure and component distribution schematic diagram (■ A phase substance, B phase substance) of FGM；
Fig. 2 is polysiloxane modified epoxy resin infrared spectrogram；
Fig. 3 is functionally gradient type integration resin scanning electron microscope (SEM) photograph；
Fig. 4 is functionally gradient type integration resin element silicon line scanning figure.
Specific embodiment
The present invention is further described below combined with specific embodiments below.
1 antirust of table weather-proof functionally gradient type bottom surface Integrative Coating major technique effect
Table 2 uses the raw material name of an article and company-information
It is as shown in table 1 the index of the technical effect of coating made of coating of the present invention；Table 2 is use of the embodiment of the present invention
The company-information and the name of an article of raw material.
Wherein, it is illustrated in figure 2 the infrared spectrogram of the polysiloxane modified epoxy resin of the present embodiment selection, from Fig. 2
In as can be seen that polysilane modified epoxy in 1126.4cm-1Left and right and 1032.7cm-1Occurs Si-O key at left and right not
Symmetrical stretching vibration absorption peak, this is the typical absorption peak of Si-O-Si, can learn and successfully be grafted Si-O- on epoxy resin
Si group.
Embodiment 1
A kind of quality of each component of antirust of the present embodiment weather-proof functionally gradient type bottom surface integrative paint are as follows:
50 parts of polysiloxane modified epoxy resins；
50 parts of bisphenol A epoxide resin E-51；
75 parts of dimethylbenzene and n-butanol double solvents (mixing mass ratio of dimethylbenzene and n-butanol is 1:1)；
125 parts of anticorrosive packings 1；
40 parts of barites；
50 parts of laminal filters；
4 portions of ULTRA polyamide anti-settling agents；
110 parts of polyamide curing agents.
Specifically, being applied using the antirust weather-proof functionally gradient type bottom surface integration that the raw material of above-mentioned coating prepares the present embodiment
The preparation method step of layer are as follows:
(1) it by each 50 parts of polysiloxane modified epoxy resin and bisphenol A epoxide resin, is stirred with the revolving speed of 2500 turns/min
30 minutes, material temperature was controlled at 50 DEG C hereinafter, finely dispersed epoxy resin base is made；
(2) by step (1) epoxy resin base and 75 parts of dimethylbenzene and n-butanol double solvents (dimethylbenzene with just
The mixed volume ratio of butanol is 1:1) it is uniformly mixed, 4 parts of ULTRA polyamide anti-settling agent is then added and is configured to asphalt mixtures modified by epoxy resin
Rouge base solution；
(3) 125 parts of 1,40 part of anticorrosive packing of barite and 50 parts of laminal filter are successively added to step (2) institute
It in obtained epoxy resin base solution, is stirred 30 minutes with the revolving speed of 2500 turns/min, controls material temperature at 50 DEG C hereinafter, being made
Finely dispersed mill base solution；
(4) 110 parts of polyamide curing agent is added in the mill base solution of step (3), is stirred evenly, using brushing work
Skill is coated on substrate, is placed naturally；
(5) by the drying substrates of coating mill base solution in step (4), curing of coating can obtain the present embodiment with antirust
Weather-proof functionally gradient type bottom surface Integrative Coating, wherein the temperature of dry environment is 25 DEG C；The humidity of dry environment is 70%.
The coating of the present embodiment can automatically form the functionally gradient structure by surface layer to internal layer in the curing process, knot
As shown in Figure 1, wherein black square is A phase substance, A phase substance is that siloxanes segment is more after solidifying for structure and component schematic diagram
The product that epoxy resin, predominantly polysiloxane modified epoxy resin are reacted with curing agent；White box is B phase substance, B
The less epoxy resin of siloxanes segment after solidifying.It is provable by the coating section elemental line scan analysis map of Fig. 3: this reality
The coating for applying example forms gradient distribution structure, which is after artificial accelerated aging 1500h hours, and coating surface changes colour 1 grade, loss of gloss
2 grades of degree, light discolouration, slight loss of gloss are rated according to national standard GB/T 1766-2008.
The coating of the present embodiment through salt spray resistance test 2000h after coating without blistering, without fall off, non-corroding.
Embodiment 2
A kind of quality of each component of antirust of the present embodiment weather-proof functionally gradient type bottom surface integrative paint are as follows:
70 parts of polysiloxane modified epoxy resins；
45 parts of cycloaliphatic epoxy resins；
70 parts of dimethylbenzene and butyl acetate double solvents (mixing mass ratio of dimethylbenzene and butyl acetate is 7:3)；
42 parts of barites；
3 parts of defoaming agents；
3 parts of dispersing agents (mixing mass ratio of BYK-110 and BYK-320 are 1:1)；
3 parts of ultraviolet absorbers (mixing mass ratio of UV-292 and UV-1130 are 2:1)；
80 parts of laminal filters；
50 parts of anticorrosive packings 1；
2 parts of charcoal blacks；
50 parts of blanc fixes；
4 portions of fumed silica anti-settling agents；
100 parts of fatty amine curing agents.
Specifically, being applied using the antirust weather-proof functionally gradient type bottom surface integration that the raw material of above-mentioned coating prepares the present embodiment
The preparation method step of layer are as follows:
(1) 70 parts of polysiloxane modified epoxy resins and 45 parts of cycloaliphatic epoxy resins are mixed, with 2000 turns/min's
Revolving speed stirs 25 minutes, controls material temperature at 50 DEG C hereinafter, finely dispersed epoxy resin base is made；
(2) by step (1) epoxy resin base and dimethylbenzene be uniformly mixed with butyl acetate double solvents, then plus
Enter 3 parts of defoaming agent, 3 parts of dispersing agent, 4 parts of fumed silica anti-settling agent, 3 parts of ultraviolet absorber (UV-292 and UV-
1130 mixed volume ratio is 2:1) it is configured to epoxy resin base solution；
(3) by 42 parts of barite, 80 parts of laminal filter, 50 parts of 1,2 part of anticorrosive packing of charcoal blacks and 50 parts
Blanc fixe be added in the obtained epoxy resin base solution of step (2), stir 25 with the revolving speed of 2000 turns/min
Minute, material temperature is controlled at 50 DEG C hereinafter, finely dispersed mill base solution is made；
(4) 100 parts of fatty amine curing agents are added in the mill base solution of step (3), are stirred evenly, using spraying process,
Coated on substrate, place naturally；
(5) by the drying substrates of coating mill base solution in step (4), curing of coating can must have the weather-proof function of antirust
Gradient type bottom surface Integrative Coating；Wherein, the temperature of dry environment is 50 DEG C；The humidity of dry environment is 85%.
The antirust of the present embodiment weather-proof functionally gradient type bottom surface Integrative Coating after artificial accelerated aging 1500h hours,
Coating surface changes colour 0 grade, 2 grades of loss of gloss degree, is rated no discoloration, slight loss of gloss according to national standard GB/T 1766-2008.This reality
Apply the coating of example after salt spray resistance tests 2000h coating without blistering, without fall off, non-corroding.
Embodiment 3
A kind of quality of each component of antirust of the present embodiment weather-proof functionally gradient type bottom surface integrative paint are as follows:
55 parts of polysiloxane modified epoxy resins；
55 parts of novolac epoxy resins；
75 parts of dimethylbenzene, n-butanol, butyl acetate double solvents (mass ratio 2:1:1)；
50 parts of barites；
73 parts of laminal filters；
50 parts of anticorrosive packings 1；
2 parts of charcoal blacks；
5 parts of ultraviolet absorbers (mass ratio of UV-292:UV-1130:UV-928:UV-123 is 1:0.5:0.5:0.5)；
2.5 parts of dispersing agents (mixing mass ratio of BYK-110 and BYK-320 are 1:1.5)；
2 parts of defoaming agents；
4 portions of fumed silica anti-settling agents；
1 part of organobentonite；
0.5 part of polyamide；
140 parts of pnenolic aldehyde amine hardeners.
Specifically, being applied using the antirust weather-proof functionally gradient type bottom surface integration that the raw material of above-mentioned coating prepares the present embodiment
The preparation method step of layer are as follows:
(1) 55 parts of polysiloxane modified epoxy resins and 55 parts of novolac epoxy resins are mixed, with turning for 2800 turns/min
Speed stirring 35 minutes controls material temperature at 50 DEG C hereinafter, finely dispersed epoxy resin base is made；
(2) by step (1) epoxy resin base and 75 parts of dimethylbenzene, n-butanol, butyl acetate double solvents it is mixed
It closes uniformly, 2 parts of defoaming agents, 2.5 parts of dispersing agents, 4 portions of fumed silica anti-settling agents, 1 part of organobentonite, 0.5 is then added
The ultraviolet absorber that part polyamide, 5 parts of UV-292, UV-1130, UV-928, UV-123 are mixed is configured to epoxy resin-matrix
Expect solution；
(3) barite, laminal filter, anticorrosive packing 1, charcoal blacks are added to step (2) obtained epoxy resin
It in base solution, is stirred 35 minutes with the revolving speed of 2800 turns/min, controls material temperature at 50 DEG C hereinafter, finely dispersed mill base is made
Solution；
(4) 140 parts of pnenolic aldehyde amine hardeners are added in the mill base solution of step (3), are stirred evenly, using spraying process,
Coated on substrate, place naturally；
(5) by the drying substrates of coating mill base solution in step (4), curing of coating can must have the weather-proof function of antirust
Gradient type bottom surface Integrative Coating；Wherein, the temperature of dry environment is 50 DEG C；The humidity of dry environment is 85%.
The antirust of the present embodiment weather-proof functionally gradient type bottom surface Integrative Coating after artificial accelerated aging 1500h hours,
Coating surface changes colour 1 grade, 2 grades of loss of gloss degree, is rated very light discolouration, slight loss of gloss according to national standard GB/T 1766-2008.
The coating of the present embodiment through salt spray resistance test 2000h after coating without blistering, without fall off, non-corroding.
Embodiment 4
A kind of quality of each component of antirust of the present embodiment weather-proof functionally gradient type bottom surface integrative paint are as follows:
40 parts of polysiloxane modified epoxy resins；
40 parts of novolac epoxy resins；
50 parts of n-butanols, butyl acetate double solvents (n-butanol, butyl acetate mixing mass ratio be 6:4)；
30 parts of anticorrosive packings 1；
2.5 parts of ultraviolet absorbers (UV-292)；
2 parts of dispersing agents (BYK-110)；
1 part of polyamide；
80 parts of fatty amine curing agents.
Specifically, using the antirust weather-proof functionally gradient type bottom surface one that the composition of raw materials of above-mentioned coating prepares the present embodiment
Change the preparation method step of coating are as follows:
(1) by each 40 parts of mixing of polysiloxane modified epoxy resin and novolac epoxy resin, with the revolving speed of 1500 turns/min
Stirring 25 minutes controls material temperature at 50 DEG C hereinafter, finely dispersed epoxy resin base is made；
(2) by step (1) epoxy resin base and 50 parts of n-butanol, butyl acetate double solvents be uniformly mixed,
Then 2 parts of BYK-110 dispersing agents, 2.5 parts of UV-292 ultraviolet absorbers, 1 part of polyamide is added and is configured to epoxy resin-matrix
Expect solution；
(3) 30 parts of anticorrosive packings 1 are added in the obtained epoxy resin base solution of step (2), with 1500 turns/
The revolving speed of min stirs 25 minutes, controls material temperature at 50 DEG C hereinafter, finely dispersed mill base solution is made；
(4) 80 parts of fatty amine curing agents are added in the mill base solution of step (3), are stirred evenly, using spraying process, applied
It is overlying on substrate, places naturally；
(5) by the drying substrates of coating mill base solution in step (4), curing of coating can must have the weather-proof function of antirust
Gradient type bottom surface Integrative Coating；Wherein, the temperature of dry environment is 50 DEG C；The humidity of dry environment is 85%.
The antirust of the present embodiment weather-proof functionally gradient type bottom surface Integrative Coating after artificial accelerated aging 1500h hours,
Coating surface changes colour 1 grade, 2 grades of loss of gloss degree, is rated very light discolouration, slight loss of gloss according to national standard GB/T 1766-2008.
The coating of the present embodiment through salt spray resistance test 2000h after coating without blistering, without fall off, non-corroding.
Embodiment 5
The preparation method and implementation of a kind of antirust of the present embodiment weather-proof functionally gradient type bottom surface integrative paint and its coating
Example 1 is essentially identical, the difference is that: n-butanol, the butyl acetate double solvents (mixing mass ratio of n-butanol, butyl acetate
It is 100 parts for 6:4).
The antirust of the present embodiment weather-proof functionally gradient type bottom surface Integrative Coating after artificial accelerated aging 1500h hours,
Coating surface changes colour 1 grade, 2 grades of loss of gloss degree, is rated light discolouration, slight loss of gloss according to national standard GB/T 1766-2008.This
The coating of embodiment through salt spray resistance test 2000h after coating without blistering, without fall off, non-corroding.
Embodiment 6
A kind of quality of each component of antirust of the present embodiment weather-proof functionally gradient type bottom surface integrative paint are as follows:
50 parts of polysiloxane modified epoxy resins；
58 parts of novolac epoxy resins；
75 parts of xylene solvent；
2 parts of barites；
10 parts of laminal filters；
15 parts of anticorrosive packings 1；
2 parts of charcoal blacks；
6 parts of blanc fixes；
2 parts of ultraviolet absorbers (UV-292)；
1 part of dispersing agent (BYK-110)；
2 parts of defoaming agents；
2 portions of fumed silica anti-settling agents；
2 parts of organobentonites；
2 parts of polyamides；
100 parts of fatty amine curing agents.
Specifically, using above-mentioned coating raw material and number prepares the weather-proof functionally gradient type of antirust of the present embodiment according to the ratio
The preparation method step of bottom surface Integrative Coating are as follows:
(1) polysiloxane modified epoxy resin and novolac epoxy resin are mixed, stirs 30 with the revolving speed of 2500 turns/min
Minute, material temperature is controlled at 50 DEG C hereinafter, finely dispersed epoxy resin base is made；
(2) by step (1) epoxy resin base and dimethylbenzene be uniformly mixed, then be added defoaming agent, BYK-110,
Fumed silica anti-settling agent, organobentonite, polyamide, that UV-292 ultraviolet absorber is configured to epoxy resin base is molten
Liquid；
(3) barite, laminal filter, anticorrosive packing 1, charcoal blacks and blanc fixe are added to obtained by step (2)
To epoxy resin base solution in, stirred 30 minutes with the revolving speed of 2500 turns/min, control material temperature at 50 DEG C hereinafter, being made point
Dissipate uniform mill base solution；
(4) fatty amine curing agent is added in the mill base solution of step (3), stirs evenly, using spraying process, is coated on
On substrate, place naturally；
(5) by the drying substrates of coating mill base solution in step (4), curing of coating can must have the weather-proof function of antirust
Gradient type bottom surface Integrative Coating；Wherein, the temperature of dry environment is 50 DEG C；The humidity of dry environment is 85%.
The antirust of the present embodiment weather-proof functionally gradient type bottom surface Integrative Coating after artificial accelerated aging 1500h hours,
Coating surface changes colour 2 grades, 2 grades of loss of gloss degree, is rated light discolouration, slight loss of gloss according to national standard GB/T 1766-2008.This
The coating of embodiment through salt spray resistance test 2000h after coating without blistering, without fall off, non-corroding.
Embodiment 7
A kind of quality of each component of antirust of the present embodiment weather-proof functionally gradient type bottom surface integrative paint are as follows:
50 parts of polysiloxane modified epoxy resins；
65 parts of novolac epoxy resins；
70 parts of xylene solvents；
40 parts of barites；
47 parts of laminal filters；
80 parts of anticorrosive packings 1；
3 parts of charcoal blacks；
80 parts of blanc fixes；
2 parts of ultraviolet absorbers (UV-292)；
2 parts of dispersing agents (BYK-110)；
2 parts of defoaming agents；
2 portions of fumed silica anti-settling agents；
2 parts of organobentonites；
2 parts of polyamides；
100 parts of fatty amine curing agents.
Specifically, using above-mentioned coating raw material and number prepares the weather-proof functionally gradient type of antirust of the present embodiment according to the ratio
The preparation method step of bottom surface Integrative Coating are as follows:
(1) polysiloxane modified epoxy resin and novolac epoxy resin are mixed, stirs 30 with the revolving speed of 2500 turns/min
Minute, material temperature is controlled at 50 DEG C hereinafter, finely dispersed epoxy resin base is made；
(2) by step (1) epoxy resin base and dimethylbenzene be uniformly mixed, then be added defoaming agent, BYK-110,
Fumed silica anti-settling agent, organobentonite, polyamide, that UV-292 ultraviolet absorber is configured to epoxy resin base is molten
Liquid；
(3) barite, laminal filter, anticorrosive packing 1, charcoal blacks and blanc fixe are added to obtained by step (2)
To epoxy resin base solution in, stirred 30 minutes with the revolving speed of 2500 turns/min, control material temperature at 50 DEG C hereinafter, being made point
Dissipate uniform mill base solution；
(4) fatty amine curing agent is added in the mill base solution of step (3), stirs evenly, using spraying process, is coated on
On substrate, place naturally；
(5) by the drying substrates of coating mill base solution in step (4), curing of coating can must have the weather-proof function of antirust
Gradient type bottom surface Integrative Coating；Wherein, the temperature of dry environment is 50 DEG C；The humidity of dry environment is 85%.
The antirust of the present embodiment weather-proof functionally gradient type bottom surface Integrative Coating after artificial accelerated aging 1500h hours,
Coating surface changes colour 0 grade, 2 grades of loss of gloss degree, is rated no discoloration, slight loss of gloss according to national standard GB/T 1766-2008.This reality
Apply the coating of example after salt spray resistance tests 2000h coating without blistering, without fall off, non-corroding.
It is worth noting that above embodiments are enumerating for coating effect optimization formula of the present invention, in actual production
Cheng Zhong, pigments and fillers include but is not limited to one or more of anticorrosive packing, barite, laminal filter, blanc fixe, pigment
Mixing, one or more of ultraviolet absorber UV-292, UV-928, UV-1130, UV-123 are mixed, and auxiliary agent includes but not
It is limited to defoaming agent, dispersing agent, anti-settling agent, wherein dispersing agent is one or more of moral modest BYK-110, BYK-320, described
Anti-settling agent be one or more of fumed silica, organobentonite, polyamide, solvent be dimethylbenzene, n-butanol,
One or more of butyl acetate, curing agent are one in polyamide curing agent, pnenolic aldehyde amine hardener and aliphatic firming agent
Kind or it is several, effect is similar, belong to those of ordinary skill in the art according to the predictable technical solution of above embodiments and
Effect does not enumerate herein to avoid repeating.
Claims (10)
1. a kind of antirust weather-proof functionally gradient type bottom surface integrative paint, it is characterised in that: including Resin A, resin B, pigments and fillers,
Ultraviolet absorber, auxiliary agent, solvent and curing agent, the mass fraction of each component are as follows:
Wherein, the Resin A is polysiloxane modified epoxy resin；The resin B is epoxy resin.
2. a kind of weather-proof functionally gradient type of antirust according to claim 1 bottom surface integrative paint, it is characterised in that: described
Resin B is bisphenol A epoxide resin, cycloaliphatic epoxy resin or novolac epoxy resin.
3. a kind of weather-proof functionally gradient type of antirust according to claim 1 or 2 bottom surface integrative paint, it is characterised in that:
The Resin A and resin B mass ratio are 1:(1~1.5), preferred resin A and resin B mass ratio are 1:(1~1.3).
4. a kind of weather-proof functionally gradient type of antirust according to claim 1 bottom surface integrative paint, it is characterised in that: described
Pigments and fillers include but is not limited to anticorrosive packing, barite, laminal filter, blanc fixe or pigment, the quality of the pigments and fillers
The 10%~45% of entire coating system gross mass is accounted for, the quality of the preferably described pigments and fillers accounts for entire coating system gross mass
20%~40%.
5. a kind of weather-proof functionally gradient type of antirust according to claim 1 bottom surface integrative paint, it is characterised in that: described
Ultraviolet absorber be one or both of UV-292, UV-928, UV-1130 and UV-123 or more composition.
6. a kind of weather-proof functionally gradient type of antirust according to claim 1 bottom surface integrative paint, it is characterised in that: described
Auxiliary agent include but is not limited to defoaming agent, dispersing agent, anti-settling agent, wherein the dispersing agent be moral modest BYK-110 and/or BYK-
320, the anti-settling agent is the combination of one or both of fumed silica, organobentonite and polyamide or more
Object.
7. a kind of weather-proof functionally gradient type of antirust according to claim 1 bottom surface integrative paint, it is characterised in that: described
Solvent be one or both of dimethylbenzene, n-butanol and butyl acetate or more composition.
8. a kind of weather-proof functionally gradient type of antirust according to claim 1 bottom surface integrative paint, it is characterised in that: described
Curing agent be one or both of polyamide curing agent, pnenolic aldehyde amine hardener and aliphatic firming agent or more combination
Object.
9. a kind of preparation method of antirust weather-proof functionally gradient type bottom surface Integrative Coating, it is characterised in that: step are as follows:
(1) Resin A and resin B are mixed in proportion, is stirred 25~35 minutes, control material temperature at 50 DEG C hereinafter, dispersion is made
Even epoxy resin base；
(2) by step (1) epoxy resin base and solvent be uniformly mixed, auxiliary agent, ultraviolet absorber is then added and is configured to
Epoxy resin base solution；
(3) pigments and fillers are added in the obtained epoxy resin base solution of step (2), are stirred 25~35 minutes, control material
Temperature is at 50 DEG C hereinafter, finely dispersed mill base solution is made；
(4) curing agent is added in the mill base solution of step (3), is stirred evenly, using brushing, spraying or roller coating technology, coating
In on substrate, place naturally；
(5) by the drying substrates of coating mill base solution in step (4), curing of coating can must have the weather-proof functionally gradient of antirust
Type bottom surface Integrative Coating.
10. a kind of preparation method of 1 bottom surface Integrative Coating according to claim 9, it is characterised in that: the step
(1) and in step (3) revolving speed stirred is 1500~2800 turns/min；In the step (5), the temperature of dry environment is 5 DEG C
~40 DEG C；The humidity of dry environment is less than 85%.
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| CN201910796854.8A CN110484094A (en) | 2019-08-27 | 2019-08-27 | A kind of preparation method of antirust weather-proof functionally gradient type bottom surface integrative paint and coating |
| PCT/CN2019/111793 WO2021035905A1 (en) | 2019-08-27 | 2019-10-18 | Anti-rust weather-resistant functional gradient type bottom-face integrated coating, and method for preparing coating layer |
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| CN115820070A (en) * | 2021-12-29 | 2023-03-21 | 郑州格莱菲高铁新材料科技有限公司 | Persistent corrosion-resistant zinc-olefin primer composition and preparation method thereof |
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Application publication date: 20191122 |