CN106905831A - A kind of steam power plant's chimney anticorrosive coating and preparation method thereof - Google Patents
A kind of steam power plant's chimney anticorrosive coating and preparation method thereof 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- 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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- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
- C08K5/1539—Cyclic anhydrides
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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
- 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
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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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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- C09D7/00—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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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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Abstract
The invention discloses a kind of steam power plant's chimney anticorrosive coating and preparation method thereof, the coating includes according to the raw material of weight portion：5 30 parts of graphite flakes, 15 35 parts of phthalic anhydride, 80 110 parts of polyisocyanates, 40 60 parts of phenolic resin, 0.1 5 parts of VTES, 3 20 parts of silica flour, 15 35 parts of maleic anhydride, 3 20 parts of ferrophosphorus powder, 3 20 parts of zinc stearate, 0.2 4 parts of silica flour, 15 50 parts of triethanolamine.By phthalic anhydride, maleic anhydride, VTES, zinc stearate, triethanolamine and styrene heating stirring, dehydration, cooling, then mixed with surplus stock, regulation viscosity is obtained final product.Coating of the invention obtained can resistance to 220 DEG C of high temperature, acid-fast alkali-proof for a long time, with sufficiently strong toughness and impact resistance, can become with the deformation of coated base, cracking is not produced, is layered and peeling.Coating of the present invention makes chimney of electric plant reduce frequency of maintenance, increased economic benefit.
Description
Technical field
The present invention relates to technical field of coatings, specifically a kind of steam power plant's chimney anticorrosive coating and preparation method thereof.
Background technology
Thermal power plant abbreviation thermal power plant, is to utilize combustible（Such as coal）As the factory of fuel production electric energy, it
The basic process of production is：Fuel heating water generation steam in burning, heat energy is transformed into by the chemical energy of fuel, and vapour pressure is pushed
Dynamic steam turbine rotation, heat energy is converted into mechanical energy, and then steam turbine drives generator rotation, and mechanical energy is transformed into electric energy.Fire
It is a very serious problem that the chimney in power power plant occurs destruction under long-term corrosion effect.This in flue gas mainly due to containing
The SO such as have2、SO3、H2S、CO2、NOx, the sour gas such as HCl, the acidity that they are formed after 40~80 DEG C of inner wall of stack condensation
Liquid, so as to cause fatefulue corrosion to inner wall of stack.Conventionally used lined with refractory acidproof brick is carried out to inner wall of stack
Means of defence, but this anti-corrosion method due to complex structure, cost raising, constructional difficulties, brick face easy to fall off the shortcomings of, nothing
Method fundamentally solves the etching problem of chimney.
At present, chimney of electric plant is not corrosion-resistant typically using vinyl glass-flake coating, but poor heat resistance, brittle,
Come off, so chimney of electric plant maintenance at present is frequent, maintenance cost is high, greatly affected economic benefit.
The content of the invention
It is an object of the invention to provide steam power plant's chimney anticorrosion of a kind of high temperature resistant, acid-fast alkali-proof and impact resistance
Coating and preparation method thereof, to solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of steam power plant's chimney anticorrosive coating, includes according to the raw material of weight portion：Graphite flakes 5-30 parts, phthalic acid
Acid anhydride 15-35 parts, polyisocyanates 80-110 parts, phenolic resin 40-60 parts, VTES 0.1-5 parts, silica flour
3-20 parts, maleic anhydride 15-35 parts, 3-20 parts of ferrophosphorus powder, zinc stearate 3-20 parts, silica flour 0.2-4 parts, triethanolamine
15-50 parts.
As further scheme of the invention：Steam power plant's chimney anticorrosive coating, according to the raw material bag of weight portion
Include：Graphite flakes 8-25 parts, phthalic anhydride 18-32 parts, polyisocyanates 85-105 parts, phenolic resin 42-58 parts, ethene
0.2-4.5 parts of ethyl triethoxy silicane alkane, silica flour 4-18 parts, maleic anhydride 18-32 parts, 4-18 parts of ferrophosphorus powder, stearic acid
Zinc 4-18 parts, silica flour 0.3-3 parts, triethanolamine 18-45 parts.
As further scheme of the invention：Steam power plant's chimney anticorrosive coating, according to the raw material bag of weight portion
Include：Graphite flakes 10-22 parts, phthalic anhydride 20-30 parts, polyisocyanates 90-100 parts, phenolic resin 45-55 parts, second
0.3-4 parts of alkenyl triethoxysilane, silica flour 5-15 parts, maleic anhydride 20-30 parts, 5-15 parts of ferrophosphorus powder, stearic acid
Zinc 5-15 parts, silica flour 0.5-2 parts, triethanolamine 20-40 parts.
A kind of preparation method of steam power plant's chimney anticorrosive coating, comprises the following steps：
1）Phthalic anhydride, maleic anhydride, VTES, zinc stearate, three are weighed according to weight portion
Monoethanolamine, is then respectively implanted in reactor, adds the styrene of 0.6-2 times of above-mentioned quality of material, is warming up to 170-200
DEG C, and stir process 2-5h at such a temperature, then it is dehydrated, room temperature is cooled to, mixed material is obtained；
2）Graphite flakes, polyisocyanates, phenolic resin, silica flour, ferrophosphorus powder, silica flour mixing are weighed according to weight portion
It is even, then mix with mixed material, stirred at a temperature of 30-50 DEG C, then viscosity is adjusted with styrene, coating is obtained.
As further scheme of the invention：Step 1）In, add the styrene of above-mentioned 0.6-1.5 times of quality of material.
As further scheme of the invention：Step 2）In, 0.5-5h is stirred at a temperature of 30-50 DEG C.
As further scheme of the invention：Mixing speed is 50-200r/min.
Compared with prior art, the beneficial effects of the invention are as follows：
Coating of the invention obtained can resistance to 220 DEG C of high temperature for a long time, acid-fast alkali-proof, with sufficiently strong toughness and impact resistance,
Can become with the deformation of coated base, cracking, layering and peeling are not produced, solve chimney of electric plant in the prior art long
Phase poor heat resistance, it is not corrosion-resistant the problems such as.Proved through practice, coating of the present invention uses situation after 2 years in the chimney of electric plant
Well, frequency of maintenance is reduced, economic benefit is increased.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of steam power plant's chimney anticorrosive coating includes according to the raw material of weight portion：Graphite flakes 5
Part, 15 parts of phthalic anhydride, 80 parts of polyisocyanates, 40 parts of phenolic resin, 0.1 part of VTES, quartz
3 parts of powder, 15 parts of maleic anhydride, 3 parts of ferrophosphorus powder, 3 parts of zinc stearate, 0.2 part of silica flour, 15 parts of triethanolamine.
A kind of preparation method of steam power plant's chimney anticorrosive coating, comprises the following steps：
1）Phthalic anhydride, maleic anhydride, VTES, zinc stearate, three are weighed according to weight portion
Monoethanolamine, is then respectively implanted in reactor, adds the styrene of 0.6 times of above-mentioned quality of material, is warming up to 170 DEG C, and
Stir process 2h, is then dehydrated at this temperature, is cooled to room temperature, and mixed material is obtained；Wherein, mixing speed is 50r/min.
2）Graphite flakes, polyisocyanates, phenolic resin, silica flour, ferrophosphorus powder, silica flour are weighed according to weight portion to mix
Uniformly, then with mixed material mix, 0.5h is stirred at a temperature of 30 DEG C, mixing speed is 50r/min.Adjusted with styrene again
Viscosity, is obtained coating.
Embodiment 2
In the embodiment of the present invention, a kind of steam power plant's chimney anticorrosive coating includes according to the raw material of weight portion：Graphite flakes 30
Part, 35 parts of phthalic anhydride, 110 parts of polyisocyanates, 60 parts of phenolic resin, 5 parts of VTES, silica flour
20 parts, 35 parts of maleic anhydride, 20 parts of ferrophosphorus powder, 20 parts of zinc stearate, 4 parts of silica flour, 50 parts of triethanolamine.
A kind of preparation method of steam power plant's chimney anticorrosive coating, comprises the following steps：
1）Phthalic anhydride, maleic anhydride, VTES, zinc stearate, three are weighed according to weight portion
Monoethanolamine, is then respectively implanted in reactor, adds the styrene of 2 times of above-mentioned quality of material, is warming up to 200 DEG C, and at this
At a temperature of stir process 5h, be then dehydrated, be cooled to room temperature, be obtained mixed material；Wherein, mixing speed is 200r/min.
2）Graphite flakes, polyisocyanates, phenolic resin, silica flour, ferrophosphorus powder, silica flour are weighed according to weight portion to mix
Uniformly, then with mixed material mix, 5h is stirred at a temperature of 50 DEG C, mixing speed is 200r/min.Adjusted with styrene again
Viscosity, is obtained coating.
Embodiment 3
In the embodiment of the present invention, a kind of steam power plant's chimney anticorrosive coating includes according to the raw material of weight portion：Graphite flakes 8
Part, 18 parts of phthalic anhydride, 85 parts of polyisocyanates, 42 parts of phenolic resin, 0.2 part of VTES, quartz
4 parts of powder, 18 parts of maleic anhydride, 4 parts of ferrophosphorus powder, 4 parts of zinc stearate, 0.3 part of silica flour, 18 parts of triethanolamine.
A kind of preparation method of steam power plant's chimney anticorrosive coating, comprises the following steps：
1）Phthalic anhydride, maleic anhydride, VTES, zinc stearate, three are weighed according to weight portion
Monoethanolamine, is then respectively implanted in reactor, adds the styrene of 0.6 times of above-mentioned quality of material, is warming up to 180 DEG C, and
Stir process 3h, is then dehydrated at this temperature, is cooled to room temperature, and mixed material is obtained；Wherein, mixing speed is 80r/min.
2）Graphite flakes, polyisocyanates, phenolic resin, silica flour, ferrophosphorus powder, silica flour are weighed according to weight portion to mix
Uniformly, then with mixed material mix, 1h is stirred at a temperature of 35 DEG C, mixing speed is 80r/min.Adjust viscous with styrene again
Degree, is obtained coating.
Embodiment 4
In the embodiment of the present invention, a kind of steam power plant's chimney anticorrosive coating includes according to the raw material of weight portion：Graphite flakes 25
Part, 32 parts of phthalic anhydride, 105 parts of polyisocyanates, 58 parts of phenolic resin, 4.5 parts of VTES, quartz
18 parts of powder, 32 parts of maleic anhydride, 18 parts of ferrophosphorus powder, 18 parts of zinc stearate, 3 parts of silica flour, 45 parts of triethanolamine.
A kind of preparation method of steam power plant's chimney anticorrosive coating, comprises the following steps：
1）Phthalic anhydride, maleic anhydride, VTES, zinc stearate, three are weighed according to weight portion
Monoethanolamine, is then respectively implanted in reactor, adds the styrene of 1.5 times of above-mentioned quality of material, is warming up to 190 DEG C, and
Stir process 4h, is then dehydrated at this temperature, is cooled to room temperature, and mixed material is obtained；Wherein, mixing speed is 150r/
min。
2）Graphite flakes, polyisocyanates, phenolic resin, silica flour, ferrophosphorus powder, silica flour are weighed according to weight portion to mix
Uniformly, then with mixed material mix, 4h is stirred at a temperature of 45 DEG C, mixing speed is 150r/min.Adjusted with styrene again
Viscosity, is obtained coating.
Embodiment 5
In the embodiment of the present invention, a kind of steam power plant's chimney anticorrosive coating includes according to the raw material of weight portion：Graphite flakes 10
Part, 20 parts of phthalic anhydride, 90 parts of polyisocyanates, 45 parts of phenolic resin, 0.3 part of VTES, quartz
5 parts of powder, 20 parts of maleic anhydride, 5 parts of ferrophosphorus powder, 5 parts of zinc stearate, 0.5 part of silica flour, 20 parts of triethanolamine.
A kind of preparation method of steam power plant's chimney anticorrosive coating, comprises the following steps：
1）Phthalic anhydride, maleic anhydride, VTES, zinc stearate, three are weighed according to weight portion
Monoethanolamine, is then respectively implanted in reactor, adds the styrene of 0.8 times of above-mentioned quality of material, is warming up to 180 DEG C, and
Stir process 3.5h, is then dehydrated at this temperature, is cooled to room temperature, and mixed material is obtained；Wherein, mixing speed is 100r/
min。
2）Graphite flakes, polyisocyanates, phenolic resin, silica flour, ferrophosphorus powder, silica flour are weighed according to weight portion to mix
Uniformly, then with mixed material mix, 2h is stirred at a temperature of 40 DEG C, mixing speed is 100r/min.Adjusted with styrene again
Viscosity, is obtained coating.
Embodiment 6
In the embodiment of the present invention, a kind of steam power plant's chimney anticorrosive coating includes according to the raw material of weight portion：Graphite flakes 22
Part, 30 parts of phthalic anhydride, 100 parts of polyisocyanates, 55 parts of phenolic resin, 4 parts of VTES, silica flour
15 parts, 30 parts of maleic anhydride, 15 parts of ferrophosphorus powder, 15 parts of zinc stearate, 2 parts of silica flour, 40 parts of triethanolamine.
A kind of preparation method of steam power plant's chimney anticorrosive coating, comprises the following steps：
1）Phthalic anhydride, maleic anhydride, VTES, zinc stearate, three are weighed according to weight portion
Monoethanolamine, is then respectively implanted in reactor, adds the styrene of 1.2 times of above-mentioned quality of material, is warming up to 190 DEG C, and
Stir process 4.5h, is then dehydrated at this temperature, is cooled to room temperature, and mixed material is obtained；Wherein, mixing speed is 120r/
min。
2）Graphite flakes, polyisocyanates, phenolic resin, silica flour, ferrophosphorus powder, silica flour are weighed according to weight portion to mix
Uniformly, then with mixed material mix, 3h is stirred at a temperature of 40 DEG C, mixing speed is 120r/min.Adjusted with styrene again
Viscosity, is obtained coating.
Anticorrosive coating obtained in embodiment of the present invention 1-5 is detected, as a result as shown in table 1：
Table 1
| Detection project | Assay | Test method standard |
| Heat resistance（220 DEG C, 1h） | Bubble-free, wrinkling | GB/T1735-2009 |
| Resistance to sulfuric acid（30% normal temperature dipping 72h） | Non-corroding, nothing come off | HG/T2454-2006 |
| Resistance to sodium chloride（30% normal temperature dipping 72h） | Non-corroding, nothing come off | HG/T2454-2006 |
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and do not carrying on the back
In the case of spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter from which
From the point of view of a bit, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention will by appended right
Ask and limited rather than described above, it is intended that all changes that will fall in the implication and scope of the equivalency of claim
Include in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (7)
1. a kind of steam power plant's chimney anticorrosive coating, it is characterised in that the raw material according to weight portion includes：Graphite flakes 5-30
Part, phthalic anhydride 15-35 parts, polyisocyanates 80-110 parts, phenolic resin 40-60 parts, VTES
0.1-5 parts, silica flour 3-20 parts, maleic anhydride 15-35 parts, 3-20 parts of ferrophosphorus powder, zinc stearate 3-20 parts, silica flour
0.2-4 parts, triethanolamine 15-50 parts.
2. steam power plant's chimney anticorrosive coating according to claim 1, it is characterised in that according to the raw material bag of weight portion
Include：Graphite flakes 8-25 parts, phthalic anhydride 18-32 parts, polyisocyanates 85-105 parts, phenolic resin 42-58 parts, ethene
0.2-4.5 parts of ethyl triethoxy silicane alkane, silica flour 4-18 parts, maleic anhydride 18-32 parts, 4-18 parts of ferrophosphorus powder, stearic acid
Zinc 4-18 parts, silica flour 0.3-3 parts, triethanolamine 18-45 parts.
3. steam power plant's chimney anticorrosive coating according to claim 1, it is characterised in that according to the raw material bag of weight portion
Include：Graphite flakes 10-22 parts, phthalic anhydride 20-30 parts, polyisocyanates 90-100 parts, phenolic resin 45-55 parts, second
0.3-4 parts of alkenyl triethoxysilane, silica flour 5-15 parts, maleic anhydride 20-30 parts, 5-15 parts of ferrophosphorus powder, stearic acid
Zinc 5-15 parts, silica flour 0.5-2 parts, triethanolamine 20-40 parts.
4. the preparation method of a kind of steam power plant's chimney anticorrosive coating as described in claim 1-3 is any, it is characterised in that
Comprise the following steps：
1）Phthalic anhydride, maleic anhydride, VTES, zinc stearate, three are weighed according to weight portion
Monoethanolamine, is then respectively implanted in reactor, adds the styrene of 0.6-2 times of above-mentioned quality of material, is warming up to 170-200
DEG C, and stir process 2-5h at such a temperature, then it is dehydrated, room temperature is cooled to, mixed material is obtained；
2）Graphite flakes, polyisocyanates, phenolic resin, silica flour, ferrophosphorus powder, silica flour mixing are weighed according to weight portion
It is even, then mix with mixed material, stirred at a temperature of 30-50 DEG C, then viscosity is adjusted with styrene, coating is obtained.
5. the preparation method of steam power plant's chimney anticorrosive coating according to claim 4, it is characterised in that step 1）
In, add the styrene of above-mentioned 0.6-1.5 times of quality of material.
6. the preparation method of steam power plant's chimney anticorrosive coating according to claim 4, it is characterised in that step 2）
In, 0.5-5h is stirred at a temperature of 30-50 DEG C.
7. the preparation method of steam power plant's chimney anticorrosive coating according to claim 4, it is characterised in that mixing speed
It is 50-200r/min.
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| CN1861719A (en) * | 2006-06-01 | 2006-11-15 | 江苏兰陵化工集团有限公司 | Anticorrosive ethenyl ester resin glass flake surface coating paint forwet flue desulfating equipment |
| CN102277066A (en) * | 2011-07-08 | 2011-12-14 | 宝鸡星源机电设备制造有限公司 | Shock-resisting anticorrosion coating material |
| CN102993796A (en) * | 2012-10-15 | 2013-03-27 | 怀远县巨龙机械制造有限公司 | Metal anti-rust paint and preparation method thereof |
| CN106118336A (en) * | 2016-06-28 | 2016-11-16 | 青岛千帆高新技术有限公司 | A kind of durable anticorrosive paint |
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