CN108485527A - A kind of flexible corrosion protection material, preparation method, metal valve - Google Patents
A kind of flexible corrosion protection material, preparation method, metal valve Download PDFInfo
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- CN108485527A CN108485527A CN201810276654.5A CN201810276654A CN108485527A CN 108485527 A CN108485527 A CN 108485527A CN 201810276654 A CN201810276654 A CN 201810276654A CN 108485527 A CN108485527 A CN 108485527A
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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
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
- C09D191/06—Waxes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention relates to anti-corrosion material technical fields, more particularly to a kind of flexible corrosion protection material, preparation method, metal valve.Flexible corrosion protection material according to the present invention, the following components based on the total weight of flexible corrosion protection material, including by weight percentage.
Description
Technical field
The present invention relates to anti-corrosion material technical fields, more particularly to a kind of flexible corrosion protection material, preparation method, metal valve
Door.
Background technology
With the continuous quickening of Re-search on Urbanization process, the demand of natural gas clean energy resource is growing.As natural gas
Main transportation route, the quantity of gas distributing system sharply increases, and coverage area constantly expands, and pipeline and pipeline auxiliary device are such as
The enormous amount of valve, safe operation are related to the energy lifeblood safety in city.
In the soil, the valve arrangement as key node and technology controlling and process is placed on underground to most of installation of gas pipeline
Valve well in.Buried pipeline itself has good coating to protect, and combines cathodic protection system and form strict protection body
System so that pipeline itself is from soil corrosion.But it is then different from the pipeline metal valve being connected, for the ease of switching manipulation, valve
Door is typically mounted in valve well, is exposed in wet air all the year round, because level of ground water rising or rainy ponding, valve also pass through
Often it is immersed in water.Valve exposes in air, is not contacted with soil, also cannot get the effective protection of cathodic protection system.And
Valve surface imperfection itself, erosion resistant coating coating quality is good not as good as pipeline anticorrosion coating, does not have effective water, gas buffer action.
Various reasons cause the serious corrosion frequent occurrence of buried pipeline metal valve, lead to not be turned on and off, or even be corroded through
Hole gas leakage influences the safe operation of pipe network.
For the corrosion of buried pipeline metal valve, common measure is to coat various anticorrosive paints, coating on its surface
It is hardened to form coating after solidification, plays the role of certain physical isolation, or electrification is played by the metal packing contained in coating
Learn protective effect.Due to valve down-the hole corrosion bad environments, valve surface coating is quickly invalidated, and needs often to apply again
It covers.Coating is very high to surface treatment requirement, at least up to St2.0 grades, if substrate surface processing is not clean, can lead to adhesion
Can it is bad, coating will soon spalling failure, can not play the role of being effectively protected.But in valve well, narrow space is wet and slippery,
Construction operation is difficult, and valve surface is again irregular, therefore is difficult to carry out thorough removing surface.In addition, general anticorrosive paint is equal
Containing a certain amount of volatile solvent, when constructing in valve well, ventilation condition is bad, easily causes Fire explosion security risk, and
It constitutes a threat to construction personnel's health.Buried pipeline metal valve enormous amount, the control for belonging to the efficient transmission ＆ distribution of pipe network are set
Standby, annual maintenance management expends a large amount of manpower and materials, but still cannot effectively solve its etching problem.
Invention content
In order to effectively control etching problem of the buried pipeline metal valve in the severe valve well of corrosive environment, the present invention
A kind of flexible corrosion protection material is provided, valve surface is coated in, forms flexible organic coating layer, be provided with for metal valve
The anti-corrosion measure of effect.
According to an aspect of the present invention, a kind of flexible corrosion protection material is provided, based on the total weight of flexible corrosion protection material, packet
Include following components by weight percentage：
According to embodiment of the present invention, the weight percent of the talcum powder is 20%~25%.
According to embodiment of the present invention, the total weight based on flexible corrosion protection material, further includes with weight percent
The following components of meter：
Fire retardant 10%~25%,
Additive 10%~20%.
The flexible corrosion protection material of the present invention is free of volatile solvent.
According to embodiment of the present invention, the vaseline is selected from industrial vaseline, in yellow to yellowish-brown under room temperature
Color ointment shape, main component are the High-carbon alkane of C16~C32 and a small amount of higher olefins.
According to embodiment of the present invention, the barium mahogany sulfonate has oil-soluble characteristic, wherein dinonyl naphthalene sulphur
The weight content of sour barium is 40%~60%.
According to embodiment of the present invention, the foam beads include granules of polystyrene, polyethylene particle, polychlorostyrene
One or more in ethylene particle, PP GRANULES and polyurethane particles.
According to embodiment of the present invention, the grain size of the foam beads is 1.2mm~3.0mm.
According to embodiment of the present invention, it is (2~5) that the fire retardant, which is weight ratio,:1 chlorinated paraffin and antimony oxygen
The mixture of compound.According to embodiment of the present invention, the sb oxide is selected from antimony oxide and antimony pentoxide
One or both of.According to embodiment of the present invention, the sb oxide is selected from antimony oxide and five oxidations two
Antimony.According to embodiment of the present invention, it is (2~5) that the fire retardant, which is weight ratio,:1 chlorinated paraffin and three oxidations two
The mixture of antimony.According to embodiment of the present invention, it is (2~5) that the fire retardant, which is weight ratio,:1 chlorinated paraffin and
The mixture of antimony pentoxide.
According to embodiment of the present invention, the one kind or two of the additive in zinc borate and magnesium hydroxide
Kind.According to embodiment of the present invention, the additive is selected from zinc borate or magnesium hydroxide.One according to the present invention
Embodiment, the additive are that weight ratio is (0.5~2):1 zinc borate and the mixture of magnesium hydroxide.
According to another aspect of the present invention, the preparation method of flexible corrosion protection material according to the present invention is provided, is wrapped
Include following steps：
By the low-melting component fusing in flexible corrosion protection material component, it is uniformly mixed, is added in flexible corrosion protection material component
Other components, obtain the flexible corrosion protection material.
The low-melting component refers to vaseline, barium mahogany sulfonate, chlorinated paraffin.
According to embodiment of the present invention, the preparation method of flexible corrosion protection material includes the following steps：
Weight percent weighs vaseline, barium mahogany sulfonate, chlorinated paraffin, sb oxide, additive, talcum powder, has
Machine bentonite, foam beads；
Heating makes vaseline, barium mahogany sulfonate, chlorinated paraffin fusing；
Wait for that vaseline, barium mahogany sulfonate, chlorinated paraffin are completely melt, after mixing, slow cooling；
Sb oxide, additive, talcum powder, organobentonite, foam beads are added, obtain the flexible corrosion protection material.
According to another implementation of the invention, when not comprising fire retardant and when additive, the system of flexible corrosion protection material
Preparation Method includes the following steps：
Weight percent weighs vaseline, barium mahogany sulfonate, talcum powder, organobentonite, foam beads；
Heating makes vaseline, barium mahogany sulfonate fusing；
Wait for that vaseline, barium mahogany sulfonate are completely melt, after mixing, slow cooling；
Talcum powder, organobentonite, foam beads are added, obtain the flexible corrosion protection material.
According to another aspect of the invention, flexible corrosion protection material as described above is provided for metal valve corrosion-resistant side
Method.According to embodiment of the present invention, the method is that flexible corrosion protection material according to the present invention is coated on metal valve
Material.The thickness of the erosion resistant coating formed after coating for example can be 1.5mm~3mm.
According to embodiment of the present invention, the metal valve is selected from buried pipeline metal valve.
According to another aspect of the invention, a kind of metal valve is provided, is coated on the metal valve as described above
Flexible corrosion protection material.
According to embodiment of the present invention, the metal valve is selected from buried pipeline metal valve.
In addition, in order to increase the beauty of erosion resistant coating, after organic coating layer can be formed with coating flexible anti-corrosion material, having
The outer layer of machine coating winds one layer of protection band, such as polyvinyl chloride band again.
Flexible corrosion protection material itself according to the present invention does not absorb water, and has hydrophobicity performance, is covered in metal surface, is formed with
The organic coating layer of elasticity.On the one hand the flexible corrosion protection material is effectively isolated water and air, another party by physical isolation effect
Face can play the metal surface of valve corrosion inhibition by corrosion inhibiter barium mahogany sulfonate contained therein, generate one layer of cause
Close secured protective film so that handle sordid metal surface, moist surface and some gap positions for being difficult to clear up and obtain
Protection.Due to being free of volatile solvent, worker's execution conditions are improved, and safety will not be formed in valve well small space
Hidden danger.Construction technology is simple, can facilitate blade coating using scraper, scraper plate, be suitble in valve well operation in small space.It is flexible
Anti-corrosion material long-time service remains to keep flexible nature, will not harden so that valve is when renovating or other are necessary
The flexible corrosion protection material of surface attachment, convenient working can easily be rooted out.The present invention is that Urban Gas Enterprises are large number of
Buried pipeline metal valve provide a kind of simple and effective anti-corrosion method, can also be widely used in it based on the actual application requirements
His scene.
Specific implementation mode
Specific implementation mode is only the description of the invention, without constituting the limitation to the content of present invention, below in conjunction with
Invention is further explained and description for specific embodiment.
According to an aspect of the present invention, a kind of flexible corrosion protection material is provided, based on the total weight of flexible corrosion protection material, packet
Include following components by weight percentage：
According to embodiment of the present invention, the weight percent of the vaseline can be 40%, 42%, 45%,
47%, 50%, 52.5%, 55%, 58%, 60% etc..
According to embodiment of the present invention, the weight percent of the talcum powder can be 10%, 13%, 15%,
17%, 20%, 23%, 26%, 28%, 30% etc..According to embodiment of the present invention, the weight percent of the talcum powder
Number is 20%~25%.
According to embodiment of the present invention, the bentonite weight percent can be 3%, 3.5%,
4%, 5%, 6%, 7%, 7.5%, 8%, 9%, 10% etc..
According to embodiment of the present invention, the weight percent of the barium mahogany sulfonate can be 3%, 5%, 7%,
8%, 10%, 12%, 13%, 15% etc..
According to embodiment of the present invention, the weight percent of the foam beads can be 1%, 1.5%, 2%,
2.5%, 3%, 4%, 5% etc..
According to embodiment of the present invention, the total weight based on flexible corrosion protection material, further includes with weight percent
The following components of meter：
Fire retardant 10%~25%,
Additive 10%~20%.
The flexible corrosion protection material of the present invention is free of volatile solvent.
According to embodiment of the present invention, the weight percent of the fire retardant can be 10%, 12%,
13.5%, 15%, 18%, 20%, 21%, 23%, 25% etc..
According to embodiment of the present invention, the weight percent of the additive can be 10%, 12%, 13%,
14.5%, 16%, 17%, 19%, 20% etc..
According to embodiment of the present invention, the vaseline is selected from industrial vaseline, in yellow to yellowish-brown under room temperature
Color ointment shape, main component are the High-carbon alkane of C16~C32 and a small amount of higher olefins.
The talcum powder selection prepares the superfine talcum powder of coating, mainly plays filling effect, prevents from generating at high temperature
Sagging phenomenon.The organobentonite mainly plays thickener, anti-settling agent, so that anti-corrosion material is had through high speed shear when preparation
Thixotropy makes each component be easy to be uniformly mixed.
According to embodiment of the present invention, the barium mahogany sulfonate has oil-soluble characteristic, wherein dinonyl naphthalene sulphur
The weight content of sour barium is 40%~60%.The barium mahogany sulfonate can very well dissolve each other with vaseline, primarily serve corrosion inhibiter
Effect can be firmly adsorbed on metal surface and form protective film, prevent air, moisture or other Korrosionsmediums from being produced to metal
Raw corrosion, has preferable neutralization, moreover it is possible to replace original moisture content to acid medium.
According to embodiment of the present invention, the foam beads include granules of polystyrene, polyethylene particle, polychlorostyrene
One or more in ethylene particle, PP GRANULES and polyurethane particles.Foam beads mainly play filling effect, can
The dosage of vaseline is reduced, water and air can also be completely cut off by being uniformly distributed in flexible corrosion protection material.
According to embodiment of the present invention, the grain size of the foam beads is 1.2mm~3.0mm.For example, it may be
1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.5mm, 3.0mm etc..
According to embodiment of the present invention, it is (2~5) that the fire retardant, which is weight ratio,:1 chlorinated paraffin and antimony oxygen
The mixture of compound.For example, weight ratio can be 2:1、2.3:1、2.7:1、3:1、3.5:1、4:1、4.5:1、5:1 etc..According to
An embodiment of the invention, the sb oxide are selected from one or both of antimony oxide and antimony pentoxide.Root
According to an embodiment of the invention, the sb oxide is selected from antimony oxide and antimony pentoxide.
According to embodiment of the present invention, it is (2~5) that the fire retardant, which is weight ratio,:1 chlorinated paraffin and three oxygen
Change the mixture of two antimony.For example, weight ratio can be 2:1、2.3:1、2.7:1、3:1、3.5:1、4:1、4.5:1、5:1 etc..Root
According to an embodiment of the invention, the fire retardant is that weight ratio is (2~5):1 chlorinated paraffin and antimony pentoxide it is mixed
Close object.For example, weight ratio can be 2:1、2.3:1、2.7:1、3:1、3.5:1、4:1、4.5:1、5:1 etc..
The mixture of chlorinated paraffin and sb oxide is eliminated using flexible corrosion protection material can be made to have better flame resistance
Ignition is dangerous.
According to embodiment of the present invention, the one kind or two of the additive in zinc borate and magnesium hydroxide
Kind.According to embodiment of the present invention, the additive is selected from zinc borate or magnesium hydroxide.One according to the present invention
Embodiment, the additive are that weight ratio is (0.5~2):1 zinc borate and the mixture of magnesium hydroxide.For example, weight ratio
Can be 0.5:1、0.7:1、1:1、1.2:1、1.6:1、1.8:1、2:1 etc..Additive can further improve flexible corrosion protection material
The flame retardant property of material, use are safer.
According to another aspect of the present invention, the preparation method of flexible corrosion protection material according to the present invention is provided, is wrapped
Include following steps：
By the low-melting component fusing in flexible corrosion protection material component, it is uniformly mixed, is added in flexible corrosion protection material component
Other components, obtain the flexible corrosion protection material.
The low-melting component refers to vaseline, barium mahogany sulfonate, chlorinated paraffin.
According to embodiment of the present invention, the preparation method of flexible corrosion protection material includes the following steps：
Weight percent weighs vaseline, barium mahogany sulfonate, chlorinated paraffin, sb oxide, additive, talcum powder, has
Machine bentonite, foam beads；
Heating makes vaseline, barium mahogany sulfonate, chlorinated paraffin fusing；
Wait for that vaseline, barium mahogany sulfonate, chlorinated paraffin are completely melt, after mixing, slow cooling；
Sb oxide, additive, talcum powder, organobentonite, foam beads are added, obtain the flexible corrosion protection material.
According to another implementation of the invention, when not comprising fire retardant and when additive, the system of flexible corrosion protection material
Preparation Method includes the following steps：
Weight percent weighs vaseline, barium mahogany sulfonate, talcum powder, organobentonite, foam beads；
Heating makes vaseline, barium mahogany sulfonate fusing；
Wait for that vaseline, barium mahogany sulfonate are completely melt, after mixing, slow cooling；
Talcum powder, organobentonite, foam beads are added, obtain the flexible corrosion protection material.
According to another aspect of the invention, flexible corrosion protection material as described above is provided for metal valve corrosion-resistant side
Method.According to embodiment of the present invention, the method is that flexible corrosion protection material according to the present invention is coated on metal valve
Material.
According to embodiment of the present invention, the metal valve is selected from buried pipeline metal valve.
According to another aspect of the invention, a kind of metal valve is provided, is coated on the metal valve as described above
Flexible corrosion protection material.The thickness of the erosion resistant coating formed after coating for example can be 1.5mm~3mm.
According to embodiment of the present invention, the metal valve is selected from buried pipeline metal valve.
With reference to specific embodiment, the present invention will be further described.
In embodiments, used component and content are as shown in table 1, foam beads, fire retardant and additive kind
Class and weight ratio are as shown in table 2.
The component and content of flexible corrosion protection material in 1 each embodiment of table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Vaseline | 40% | 45% | 50% | 50% | 55% | 60% |
| Talcum powder | 15% | 20% | 10% | 10% | 25% | 30% |
| Organobentonite | 7% | 4% | 5% | 5% | 5% | 4% |
| Barium mahogany sulfonate | 15% | 4% | 12% | 12% | 10% | 5% |
| Foam beads | 1% | 2% | 3% | 3% | 5% | 1% |
| Fire retardant | 12% | 15% | 10% | 10% | ||
| Additive | 10% | 10% | 10% | 10% |
The type and weight ratio of foam beads, fire retardant and additive in 2 each embodiment of table
The preparation method of the flexible corrosion protection material of Examples 1 to 4 is：
(1) each component is weighed according to formula；
(2) vaseline is added in beaker, heating water bath is to 60 DEG C~80 DEG C；
(3) after it melts completely, barium mahogany sulfonate, chlorinated paraffin is added, keeps temperature-resistant stir about 15 minutes, waits for
Melt completely, after mixing, slow cooling is to 25 DEG C~35 DEG C；
(4) sb oxide, zinc borate, magnesium hydroxide, talcum powder are sequentially added, is uniformly mixed；
(5) it is slowly added to organobentonite, electric blender high-speed stirred is used while being added 30 minutes, is thoroughly mixed
Uniformly and thixotropic behavior is presented；
(6) foam beads are eventually adding, are stirred evenly, the flexible corrosion protection material of the embodiment of the present invention 1~4 is obtained.
The preparation method of the flexible corrosion protection material of embodiment 5~6 is：
(1) each component is weighed according to formula；
(2) vaseline is added in beaker, heating water bath is to 60 DEG C~80 DEG C；
(3) after its completely melt after, be added barium mahogany sulfonate, keep temperature-resistant stir about 15 minutes, wait for completely melt,
After mixing, slow cooling is to 25 DEG C~35 DEG C；
(4) talcum powder is added, is uniformly mixed；
(5) it is slowly added to organobentonite, electric blender high-speed stirred is used while being added 30 minutes, is thoroughly mixed
Uniformly and thixotropic behavior is presented；
(6) foam beads are eventually adding, are stirred evenly, the flexible corrosion protection material of the embodiment of the present invention 5~6 is obtained.
Table 3 is the performance test results of the flexible corrosion protection material of the embodiment of the present invention 2.
The performance test results of 3 flexible corrosion protection material of table
The flexible corrosion protection material of the present invention can meet Urban Gas Enterprises buried pipeline it can be seen from the result of table 3
Requirement for anticorrosion of the metal valve in valve well.Meanwhile flexible corrosion protection material of the invention can also be based on the actual application requirements
For other scenes.
According to another aspect of the invention, flexible corrosion protection material as described above is provided to use for metal valve corrosion-resistant
On the way.
According to embodiment of the present invention, the metal valve is selected from buried pipeline metal valve.
The flexible corrosion protection material of the present invention can be used for metal valve anti-corrosion, as metal valve flexible corrosion protection material, especially
Application method when it is buried pipeline metal valve flexible corrosion protection material can be：
(1) removing surface：The soil on metal valve surface, old coating, floating rust are cleared up with tools such as scraper, wire brushes
Totally, with coarse sandpaper polishing metal surface, preferably expose metallic substrates.Then it uses acetone, clean cotton to wipe metal surface, leads to
Wind air-dries.
(2) flexible corrosion protection material is scratched：It is in pasta flexible corrosion protection material, first blind portion in right amount with scraper scraping
Position, valve surface depressed area, fill up and tamp；Appropriate flexible corrosion protection material is scraped with scraper again, it is uniform in entire valve surface
Blade coating, is smeared in length and breadth, and surface is made to adhere to one layer of uniform erosion resistant coating, and thickness is 1.5mm~3mm.
(3) one layer of protection band is wound, is wrapped around one layer of yellow PVC protection again on the surface of uniformly blade coating flexible corrosion protection layer
Band, makes internal erosion resistant coating become an entirety, and appearance is more beautiful.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (14)
1. a kind of flexible corrosion protection material, which is characterized in that the total weight based on flexible corrosion protection material, including by weight percentage
Following components：
2. flexible corrosion protection material according to claim 1, which is characterized in that the total weight based on flexible corrosion protection material, also
Including following components by weight percentage：
Fire retardant 10%~25%,
Additive 10%~20%.
3. flexible corrosion protection material according to claim 1, which is characterized in that in the barium mahogany sulfonate, dinonyl naphthalene sulphur
The weight content of sour barium is 40%~60%.
4. flexible corrosion protection material according to claim 1, which is characterized in that the foam beads include polystyrene
One or more in grain, polyethylene particle, polyvinyl chloride particles, PP GRANULES and polyurethane particles.
5. flexible corrosion protection material according to claim 1, which is characterized in that the grain size of the foam beads be 1.2mm~
3.0mm。
6. flexible corrosion protection material according to claim 2, which is characterized in that the fire retardant is that weight ratio is (2~5):1
Chlorinated paraffin and sb oxide mixture.
7. flexible corrosion protection material according to claim 6, which is characterized in that the sb oxide be selected from antimony oxide and
One or both of antimony pentoxide.
8. flexible corrosion protection material according to claim 2, which is characterized in that the additive is selected from zinc borate and hydroxide
One or both of magnesium.
9. flexible corrosion protection material according to claim 8, which is characterized in that the additive be weight ratio be (0.5~
2):1 zinc borate and the mixture of magnesium hydroxide.
10. the preparation method of claim 1~9 any one of them flexible corrosion protection material, which is characterized in that including following step
Suddenly：
By the low-melting component fusing in flexible corrosion protection material component, it is uniformly mixed, its in flexible corrosion protection material component is added
His component, obtains the flexible corrosion protection material.
11. flexible corrosion protection material according to any one of claims 1 to 9 is used for metal valve preserving method.
12. according to the method for claim 11, which is characterized in that the metal valve is selected from buried pipeline metal valve.
13. a kind of metal valve, which is characterized in that be coated on the metal valve according to any one of claims 1 to 9
Flexible corrosion protection material.
14. metal valve according to claim 13, which is characterized in that the metal valve is selected from buried pipeline metal valve
Door.
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Cited By (1)
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