CN105585908B - A kind of anticorrosive coat of matrix surface and preparation method thereof - Google Patents
A kind of anticorrosive coat of matrix surface and preparation method thereof Download PDFInfo
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- CN105585908B CN105585908B CN201410566220.0A CN201410566220A CN105585908B CN 105585908 B CN105585908 B CN 105585908B CN 201410566220 A CN201410566220 A CN 201410566220A CN 105585908 B CN105585908 B CN 105585908B
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Abstract
The invention discloses a kind of anticorrosive coat of matrix surface, by the organic coating positioned at matrix surface, and is adhered to the hydrophobically modified glass flake package assembly composition of organic coating layer surface.The organic coating is used as filler using surface by the short glass flake of compatibility modifier；The glass flake package assembly is made up of the long and short glass flake of hydrophobically modified, the short glass flake of hydrophobically modified is mixed between the long glass flake of hydrophobically modified, make to play fixation at least partly long glass flake one end insertion organic coating, the other end protrudes the organic coating layer surface, forms " hydrophobic capillary " structure with sharpened surface.When corroding drop impact material surface, the organic coating has excellent corrosion protection effect, be particularly suitable for use in dynamic impulsion erosion corrosion liquid environment, such as ocean splash zones material surface anti-corrosion, turbine blade anti-corrosion, hydraulic pump anti-corrosion etc., the corrosion protection of the ocean splash zones that are particularly suitable for use in material surface.
Description
Technical field
The present invention relates to the anticorrosion technique field of matrix surface, more particularly to one kind to be in dynamic impulsion erosion corrosion
Anticorrosive coat of matrix surface in liquid environment and preparation method thereof.
Background technology
China possesses more than 18000 kilometers of coastline, and abundant marine resources and booming marine industries.But
It is that the economic loss caused by corrosion is at least up to 90,000,000,000 yuans every year in China, the economic damage wherein caused by marine corrosion
The economic loss being significantly larger than caused by the natural calamities such as earthquake, typhoon is lost, accounts for more than 30%.At present, China is in marine oil
The fields such as gas field development, port construction, bridge spanning the sea, seabed tunnel, Marine engineering and deep-sea exploration are built and substantial amounts of building
Various steel construction and reinforced concrete structure facilities, once disastrous corrosion occurs, it will cause heavy damage and tremendous economic
Loss.Therefore, marine corrosion is with protecting also by as the Major Strategic Demand of national development.
In marine corrosion, generally, average corrosion rate of the steel in marine atmosphere is about 0.03~0.08mm/
a；And splash zone corrosion speed is 0.3~0.5mm/a, highest is even up to more than 1.0mm/a.It can be seen that in waves splash about area
Corrosion rate in water immersion area than being higher by 3~10 times.
The corrosion in waves splash about area is due to that material surface is contained corrosive salt by not broken off a friendship rich in oxygen for oxygenation
The air bubble fluid spills impact divided, the periodicity of seawater, which soaks, causes material surface to be supplied often in alternation of wetting and drying state, oxygen
Should be abundant, salinity constantly concentrates, and the factor such as caused wave stroke cooperates with when being acted on plus temperature difference and wind and seawater simultaneously
Effect, so as to more accelerate the corrosion of material.Therefore, the corrosion in waves splash about area is most serious.
At present, most anti-corrosion methods for ocean splash zones be all also limited to simple mechanical strength by increase material,
Increase anticorrosive coat thickness, and a kind of method by sacrificing metal material and protecting another material.Although metal material hardness
Height, but when bubble is crumbled and fall, because surrounding fluid pressure exceeds well over pressure in bubbles, therefore, crumbling and fall, instantaneous produce greatly is rushed
Hit power and high temperature, and if it is this greatly impulsive force depend merely on increase matrix material mechanical strength, by very stiff and demanding method come
Solve often worthless.
Therefore, the simple intensity by increasing material has certain limitation to corrosion proof raising.Therefore, development is long-term
Effective splash zone anticorrosion technique to protect the safe operation of ocean steel construction facility have extremely important economic value and
Social effect.
The content of the invention
For the above-mentioned state of the art, the invention provides a kind of anticorrosive coat of matrix surface, and there is excellent corrosion to prevent for it
Shield acts on, suitable for the matrix surface in dynamic impulsion erosion corrosion liquid environment, such as ocean splash zones material
The fields such as surface anticorrosion, turbine blade anti-corrosion, hydraulic pump anti-corrosion.
The technical solution adopted in the present invention is：A kind of anticorrosive coat of matrix surface, as shown in figure 1, by positioned at the table of matrix 1
The organic coating 2 in face and it is adhered to the hydrophobically modified glass flake package assembly 3 of organic coating layer surface and forms；
The organic coating 2 is made up of curing agent and component A, and curing agent and component A mass ratio are 7：1-15：1, according to
Mass fraction meter, component A component and content are as follows：
40~80 parts of fluorocarbon resin；
3-10 parts of short glass flake 4 of compatible modification；
Solvent 1-20 parts；
1~50 part of additive；
Preferably, described curing agent is Polyisocyanate esters curing agent；
The short glass flake 4 of the compatible modification is the glass flake through silane coupler surface modification treatment, for carrying
Adhesion between high glass flake and fluorocarbon resin, wherein glass flake length are 5-20 μm；
Described hydrophobically modified glass flake package assembly 3 by hydrophobically modified long glass flake 5 and hydrophobically modified it is short
Glass flake 6 forms；On the surface of organic coating 1, the short glass flake 6 of hydrophobically modified is mixed in the long glass of hydrophobically modified
Between scale 5, one end of long glass flake 5 of at least part of hydrophobically modified is set to be embedded in the organic coating 2, other end protrusion
On the surface of organic coating 2, the hydrophobic capillary pipe structure with sharpened surface is formed；
The short glass flake 6 of the hydrophobically modified is the glass flake of hydrophobically modified dose of surface modification treatment, the glass
The length of scale is 5-20 μm；
The long glass flake 5 of the hydrophobically modified is the glass flake of hydrophobically modified dose of surface modification treatment, the glass
The length of scale is 50-200 μm；
Preferably, the mass ratio of the short glass flake 6 of the hydrophobically modified and the long glass flake 5 of hydrophobically modified is 1:
1-1:10。
Described glass flake can be flakey C glass.
Preferably, the thickness of described glass flake is 1~4 μm.
Described silane coupler includes but is not limited to γ-aminopropyltrialkoxysilane, γ-glycidyl ether oxygen propyl
Trialkoxy silane, γ-methacryloxypropyl trialkoxy silane, vinyl trialkyl oxysilane, γ-chloropropyl three
One or more of mixtures in alkoxy silane etc..
Hydrophobic modifier used include but is not limited to octadecyl trichlorosilane alkane, ten trifluoro octyltrialkoxysilanes,
One or more of mixtures in ten difluoro heptyl propyl trialkoxy silanes etc..
The one or more that described solvent is included in propylene glycol methyl ether acetate, toluene, dimethylbenzene, butyl acetate etc. are mixed
Compound.
Described additive includes the one or more in defoamer, levelling agent, wetting dispersing agent etc..As a kind of preferred
Implementation, described additive is by 0.1~2 part of dimethyl silicone polymer defoamer, 0.3~5 part of organosilicon levelling agent, profit
0.1~15 part of hygroscopic water powder, rutile type titanium white 0.3-20 parts, mica powder 0.2-8 parts composition.
Preferably, the mass ratio of described short hydrophobically modified glass flake and long hydrophobically modified glass flake is 1:1-1:
10。
Present invention also offers a kind of preparation method of matrix surface anticorrosive coat, specifically comprise the following steps：
(1) use silane coupler to carry out surface compatability modification to length for 5-20 μm of glass flake, obtain and fluorine
The preferable modified glass flakes of carbon resin compatibility；
(2) using hydrophobic modifier to long and short two kind glass flake, i.e. length is 5-20 μm of glass flake, and length
For 50-200 μm glass flake carry out surface hydrophobic modification, obtain hydrophobically modified long glass flake and hydrophobically modified it is short
Glass flake；
(3) according to mass fraction meter, 40~80 parts of fluorocarbon resin is weighed, compatibility modifier glass squama made from step (1)
Piece 3-10 parts, solvent 1-20 parts, 1~30 part of additive, stir, obtain compo；
(4) by compo and curing agent according to 7：1-15:Brush in matrix surface, obtain organic after 1 ratio mixing
Coating；
(5) before treating organic coating not yet surface drying, the long glass flake of hydrophobically modified made from step (2) is changed with hydrophobic
The short glass flake hydrophobically modified glass flake of property is sprinkling upon the organic coating layer surface, wherein, short hydrophobically modified glass flake is mingled with
Between long hydrophobically modified glass flake, one end of the long glass flake of at least part of hydrophobically modified is set to be embedded in organic coating,
The other end protrudes organic coating layer surface, forms the hydrophobic capillary pipe structure with sharpened surface；After organic coating is fully cured,
Removing remains in the nonadherent hydrophobically modified glass flake of organic coating layer surface.
In described step (1), it is sweet that silane coupler includes but is not limited to γ-aminopropyltrialkoxysilane, γ-shrink
Oily ether oxygen propyl trialkoxy silane, γ-methacryloxypropyl trialkoxy silane, vinyl trialkyl oxysilane,
One or more of mixtures in γ-chloropropyl trialkoxy silane etc..
In described step (1), as a kind of implementation, silane coupler carries out surface compatability to glass flake and changed
The method of property is：Silane coupler is mixed with ethanol solution, adds appropriate glass flake, is heated to reflux to after 50-80 DEG C stirring
Mix, then cool down, take out glass flake washing, filtering, drying.Preferably, described silane coupler and ethanol solution
Mass ratio is 1：100-10：100.
In described step (2), hydrophobic modifier includes but is not limited to octadecyl trichlorosilane alkane, the alkane of ten trifluoro octyl group three
One or more of mixtures in TMOS, ten difluoro heptyl propyl trialkoxy silanes etc..
In described step (2), as a kind of implementation, hydrophobic modifier carries out surface compatability to glass flake and changed
The method of property is：Hydrophobic modifier is mixed with ethanol, hydrophobically modified liquid is prepared, adds appropriate glass flake, be heated to reflux
Stir after to 50-80 DEG C, then cool down, take out glass flake washing, filtering, drying.Preferably, described hydrophobic modifier
Mass ratio with ethanol is 0.5：100-8：100.
In described step (3), solvent includes one in propylene glycol methyl ether acetate, toluene, dimethylbenzene, butyl acetate etc.
Kind or several mixtures.
In described step (3), additive includes the one or more in defoamer, levelling agent, wetting dispersing agent etc..Make
For a kind of preferable implementation, described additive is by 0.1~2 part of dimethyl silicone polymer defoamer, organosilicon levelling agent
0.3~5 part, 0.1~15 part of wetting dispersing agent, rutile type titanium white 0.3-20 parts, mica powder 0.2-8 parts composition.
In described step (4), curing agent is preferably Polyisocyanate esters curing agent.
In described step (5), preferably, described short hydrophobically modified glass flake and long hydrophobically modified glass flake
Mass ratio be 1:1-1:10.
In summary, the length of glass flake is divided into two kinds in the present invention, and a kind of length is 5-20 μm, is referred to as " short glass
Scale ", another length are 50-200 μm, are referred to as " long glass flake ", the glass flake is modified, modified using this
Glass flake devise the present invention have special construction matrix surface anticorrosive coat.The structure is by positioned at the organic of matrix surface
Coating, and it is adhered to the hydrophobically modified glass flake package assembly composition of organic coating layer surface.
In the anticorrosive coat organic coating part using surface by compatibility modifier short glass flake as filler, this is compatible
Modified short glass flake stacking is distributed in organic coating stragglyly, forms " labyrinth " structure, the structure can pass through labyrinth
Effect extends liquid and penetrates into path；In addition, the hydrophobically modified glass flake assembling knot protruded from anticorrosive coat outside organic coating
Be configured to " capillary hydrophobic structure ", formed by capillary hydrophobic effect between corrosive liquids and organic coating gas every
Absciss layer, so as to effectively prevent corrosive liquids from contacting and penetrate into organic coating.Reach etch-proof purpose.
The hydrophobically modified glass flake package assembly by hydrophobically modified long glass flake and hydrophobically modified short glass squama
Piece forms；In coating surface, the short glass flake of hydrophobically modified is mixed between the long glass flake of hydrophobically modified, for preventing
The long glass flake of hydrophobically modified is attached at coating surface completely, makes at least part of long glass flake one end insertion described organic
Fixation is played in coating, other end protrusion is in organic coating layer surface, " hydrophobic capillary " structure of formation with sharpened surface.
When corroding drop impact material surface, the coating has following triple corrosion protection effects：
(1) the exposed sharp parts of coating surface can puncture corrosion drop, and decomposition reduction corrosion drop brings powerful
Impulsive force；
(2) the capillary hydrophobic effect of hydrophobic capillary pipe structure forms subnormal ambient, and it is negative that the corrosive liquid after rupture drops in this
It is isolated under pressure ring border by the air barrier that hydrophobic effect is formed with organic coating layer surface, so as to effectively prevent corrosive liquid
Contact of the body with organic coating layer surface, reduces the infiltration of corrosive liquids, so as to greatly reduce the water absorption rate of coating, improves
Its Corrosion Protection；
(3) when penetrating into a small amount of corrosive liquids of organic coating by labyrinth structure in organic coating, imitated by labyrinth
The infiltration path of corrosive liquid should be extended, such as a kind of infiltration path 7 of the bending shown in Fig. 1, so as to effectively prevent
Corrosive liquid penetrates into the speed of organic coating, reaches anticorrosion purpose.
Therefore, the erosion shield has a good application prospect, and is particularly suitable for use in dynamic impulsion erosion corrosion
Matrix in liquid environment, such as ocean splash zones material surface anti-corrosion, turbine blade anti-corrosion, hydraulic pump anti-corrosion etc., especially
Suitable for the corrosion protection of ocean splash zones material surface.
Brief description of the drawings
Fig. 1 is the structural representation of the anticorrosive coat of matrix surface of the present invention.
Embodiment
Below with reference to drawings and Examples, the present invention will be further described.It is pointed out that implementation as described below
Example is intended to be easy to the understanding of the present invention, and does not play any restriction effect to it.
Reference in Fig. 1 is：Matrix 1, organic coating 2, hydrophobically modified glass flake package assembly 3, compatible modification
Short glass flake 4, the long glass flake 5 of hydrophobically modified, the short glass flake 6 of hydrophobically modified, a kind of of liquid penetrate into path
7。
Embodiment 1：
In the present embodiment, the structure of the corrosion-inhibiting coating of matrix surface is as shown in figure 1, by organic painting positioned at the surface of matrix 1
Layer 2 and it is adhered to the hydrophobically modified glass flake package assembly 3 of organic coating layer surface and forms.Hydrophobically modified glass flake assembles
Structure 3 is made up of the long glass flake 5 of hydrophobically modified and the short glass flake 6 of hydrophobically modified.It is hydrophobic on the surface of organic coating 1
Modified short glass flake 6 is mixed between the long glass flake 5 of hydrophobically modified, makes the long glass of at least part of hydrophobically modified
The one end of scale 5 is embedded in the organic coating 2, and other end protrusion is hydrophobic with sharpened surface in the surface of organic coating 2, formation
Capillary pipe structure.
The preparation method of the corrosion-inhibiting coating of above-mentioned matrix surface comprises the following steps：
(1) glass flake E compatibility modifier：Short glass flake E is that thickness is 1~4 μm, and length is 5-20 μm of scale
Shape C glass；It is 3 in mass ratio by γ-aminopropyltrialkoxysilane and ethanol solution：100 mixing, prepare solution 1000mL,
Then the untreated short glass flake E of 500g are added, are heated to reflux to 50 DEG C, 1h is stirred, then takes out, cools down, washing, mistake
Filter, drying, obtains the short glass flake 4 of compatible modification.
(2) glass flake F hydrophobically modified：Glass flake F is the flakey C glass that thickness is 1~4 μm, and its length is divided
For two kinds, a kind of length is 5-20 μm, is referred to as " short glass flake ", and another length is 50-200 μm, is referred to as " long glass squama
Piece "；It is 2 in mass ratio by octadecyl trichlorosilane alkane and ethanol：100 mixing, prepare hydrophobically modified liquid 1000mL, then add
The untreated glass flake F of 500g, it is heated to reflux to 50 DEG C, stirs 1h, then take out, cool down, wash, filter, dries, obtain
The long glass flake 5 of hydrophobically modified and the short glass flake 6 of hydrophobically modified.
(3) according to mass fraction meter, 50 parts of the trifluoro fluorocarbon resin that solid content is 50% is weighed；Sequentially add poly dimethyl
1 part of silicone antifoam agent, 0.5 part of organosilicon levelling agent, 10 parts of wetting dispersing agent, after stirring 10min, sequentially add 5 parts of steps
(1) glass flake 4 of compatible modification made from, 15 parts of rutile type titanium white, 5 parts of mica powder, after high-speed stirred disperses 1h, obtain
To compo.
(4) by compo and isocyanate curing agent according to 10：Brush on the surface of matrix 1, obtain after 1 ratio mixing
Organic coating 2；
(5) before not yet surface drying to be coated, by the long glass flake 5 and hydrophobically modified of hydrophobically modified made from step (2)
Short glass flake 6 be sprinkling upon the surface of organic coating 2, wherein, the short glass flake 6 of hydrophobically modified is mixed in the long glass of hydrophobically modified
Between glass scale 5, one end of at least part of long glass flake 5 is set to be embedded in organic coating 2, other end protrusion organic coating 2
Surface, the capillary hydrophobic structure with sharpened surface is formed, after organic coating 2 is fully cured, removing remains in organic painting
The hydrophobically modified glass flake that 2 surface of layer are not embedded into.
Embodiment 2：
In the present embodiment, the structure and the knot of the matrix surface corrosion-inhibiting coating in embodiment 1 of the corrosion-inhibiting coating of matrix surface
Structure is identical.
In the present embodiment, the preparation method of the corrosion-inhibiting coating of matrix surface comprises the following steps：
(1) glass flake E compatibility modifier：Short glass flake E is that thickness is 1~4 μm, and length is 5-20 μm of scale
Shape C glass；It is 10 in mass ratio by γ-glycidyl ether oxygen propyl trialkoxy silane and ethanol solution：100 mixing, are prepared
Solution 1000mL, the untreated short glass flake E of 500g are then added, are heated to reflux to 80 DEG C, stirred 1h, then take out, be cold
But, wash, filter, drying, obtain compatibility modifier glass flake.
(2) glass flake F hydrophobically modified：Glass flake F is the flakey C glass that thickness is 1~4 μm, and its length is divided
For two kinds, a kind of length is 5-20 μm, is referred to as " short glass flake ", and another length is 50-200 μm, is referred to as " long glass squama
Piece "；It is 6 in mass ratio by ten difluoro heptyl propyl trialkoxy silanes and ethanol：100 mixing, prepare hydrophobically modified liquid
1000mL, the untreated glass flake F of 500g are then added, are heated to reflux to 80 DEG C, stirred 1h, then take out, cool down, wash
Wash, filter, dry, obtain the short glass flake of the long glass flake and hydrophobically modified of hydrophobically modified.
(3) according to mass fraction meter, 70 parts of the tetrafluoro fluorocarbon resin that solid content is 50% is weighed；Sequentially add poly dimethyl
2 parts of silicone antifoam agent, 1 part of organosilicon levelling agent, 20 parts of wetting dispersing agent, after stirring 10min, sequentially add 10 parts of steps
(1) the glass flake E of compatibility modifier made from, 15 parts of rutile type titanium white, 10 parts of mica powder, high-speed stirred disperses 1h
Afterwards, compo is obtained.
(4) by compo and isocyanate curing agent according to 8：Brush in matrix surface, had after 1 ratio mixing
Organic coating；
(5) before not yet surface drying to be coated, by long hydrophobically modified glass flake made from step (2) and short hydrophobically modified glass
Glass scale is sprinkling upon coating surface, wherein, the short glass flake of hydrophobically modified is mixed between the long glass flake of hydrophobically modified, is made
In one end insertion organic coating of at least part of long glass flake, other end protrusion organic coating layer surface, being formed has sharply
The capillary hydrophobic structure on surface, after organic coating is fully cured, removing remain in organic coating layer surface be not embedded into it is hydrophobic
Modified glass flakes.
Comparing embodiment 1：
The present embodiment is the comparative example of above-described embodiment 1.
In the present embodiment, the preparation method of the corrosion-inhibiting coating of matrix surface comprises the following steps：
(1) it is identical with the step (1) in embodiment 1；
(2) according to mass fraction meter, 50 parts of the trifluoro fluorocarbon resin that solid content is 50% is weighed；Sequentially add poly dimethyl
1 part of silicone antifoam agent, 0.5 part of organosilicon levelling agent, 10 parts of wetting dispersing agent, after stirring 10min, sequentially add 5 parts of steps
(1) glass flake of compatible modification made from, 15 parts of rutile type titanium white, 5 parts of mica powder, after high-speed stirred disperses 1h, obtain
To compo.
(3) by compo and isocyanate curing agent according to 10：Brush in matrix surface, obtain after 1 ratio mixing
Organic coating；
Comparing embodiment 2：
The present embodiment is the comparative example of above-described embodiment 2.
In the present embodiment, the preparation method of the corrosion-inhibiting coating of matrix surface comprises the following steps：
(1) it is identical with the step (1) in embodiment 1；
(1) according to mass fraction meter, 70 parts of the tetrafluoro fluorocarbon resin that solid content is 50% is weighed；Sequentially add poly dimethyl
2 parts of silicone antifoam agent, 1 part of organosilicon levelling agent, 20 parts of wetting dispersing agent, after stirring 10min, sequentially add 10 parts of steps
(1) glass flake of compatible modification made from, 15 parts of rutile type titanium white, 10 parts of mica powder, after high-speed stirred disperses 1h, obtain
To compo.
(3) by compo and isocyanate curing agent according to 8：Brush in matrix surface, had after 1 ratio mixing
Organic coating.
Water imbibition test, gained test knot are carried out to obtained corrosion-inhibiting coating in embodiment 1,2 and comparative example 1,2
Fruit is as shown in the table：
| Corrosion-inhibiting coating water absorption rate (%) | |
| Embodiment 1 | 0.031 |
| Comparing embodiment 1 | 0.43 |
| Embodiment 2 | 0.022 |
| Comparing embodiment 2 | 0.26 |
Above-described embodiment is used for illustrating the present invention, rather than limits the invention, the present invention spirit and
In scope of the claims, to any modifications and changes of the invention made, protection scope of the present invention is both fallen within.
Claims (19)
1. a kind of anticorrosive coat of matrix surface, it is characterized in that：By the organic coating positioned at matrix surface and it is adhered to organic painting
The hydrophobically modified glass flake package assembly composition of layer surface；
The organic coating is made up of curing agent and component A, and curing agent and component A mass ratio are 7：1-15：1, according to quality
Number meter, component A component and content are as follows：
40~80 parts of fluorocarbon resin；
Short glass flake 3-10 parts of compatible modification；
Solvent 1-20 parts；
1~50 part of additive；
The short glass flake of the compatible modification is the glass flake through silane coupler surface modification treatment, wherein glass flake
Length be 5-20 μm；
Described hydrophobically modified glass flake package assembly by hydrophobically modified long glass flake and hydrophobically modified short glass squama
Piece forms；In the organic coating layer surface, the short glass flake of hydrophobically modified is mixed between the long glass flake of hydrophobically modified,
Long glass flake one end of at least part of hydrophobically modified is set to be embedded in the organic coating, the other end is protruded in organic coating table
Face, form the hydrophobic capillary pipe structure with sharpened surface；
The short glass flake of the hydrophobically modified is the glass flake of hydrophobically modified dose of surface modification treatment, the glass flake
Length is 5-20 μm；
The long glass flake of the hydrophobically modified is the glass flake of hydrophobically modified dose of surface modification treatment, the glass flake
Length is 50-200 μm.
2. the anticorrosive coat of matrix surface as claimed in claim 1, it is characterized in that：Described curing agent is consolidated for Polyisocyanate esters
Agent.
3. the anticorrosive coat of matrix surface as claimed in claim 1, it is characterized in that：The short glass flake of the hydrophobically modified is with dredging
The mass ratio for the long glass flake that water is modified is 1:1-1:10.
4. the anticorrosive coat of matrix surface as claimed in claim 1, it is characterized in that：Described silane coupler is γ-aminopropyl
Trialkoxy silane, γ-glycidyl ether oxygen propyl trialkoxy silane, γ-methacryloxypropyl tri-alkoxy silicon
One or more of mixtures in alkane, vinyl trialkyl oxysilane, γ-chloropropyl trialkoxy silane.
5. the anticorrosive coat of matrix surface as claimed in claim 1, it is characterized in that：Described hydrophobic modifier is octadecyl three
One or more of mixtures in chlorosilane, ten trifluoro octyltrialkoxysilanes, ten difluoro heptyl propyl trialkoxy silanes.
6. the anticorrosive coat of matrix surface as claimed in claim 1, it is characterized in that：Described solvent is propylene glycol monomethyl ether acetic acid
One or more of mixtures in ester, toluene, dimethylbenzene, butyl acetate.
7. the anticorrosive coat of matrix surface as claimed in claim 1, it is characterized in that：Described additive includes defoamer, levelling
One or more in agent, wetting dispersing agent.
8. the anticorrosive coat of matrix surface as claimed in claim 7, it is characterized in that：Described additive is by dimethyl silicone polymer
0.1~2 part of defoamer, 0.3~5 part of organosilicon levelling agent, 0.1~15 part of wetting dispersing agent, rutile type titanium white 0.3-20
Part, mica powder 0.2-8 parts composition.
9. the anticorrosive coat of the matrix surface as described in any claim in claim 1 to 8, it is characterized in that：Described matrix
In dynamic impulsion erosion corrosion liquid environment.
10. the anticorrosive coat of matrix surface as claimed in claim 9, it is characterized in that：Described matrix is the material of ocean splash zones
Material, the blade or hydraulic pump of turbine.
11. a kind of preparation method of matrix surface anticorrosive coat, specifically comprises the following steps：
(1) use silane coupler to carry out surface compatability modification to length for 5-20 μm of glass flake, obtain and fluorine carbon tree
The preferable modified glass flakes of lipid phase capacitive；
(2) using hydrophobic modifier to long and short two kind glass flake, i.e. length is 5-20 μm of short glass flake, and length is
50-200 μm of long glass flake carries out surface hydrophobic modification, obtain hydrophobically modified long glass flake and hydrophobically modified it is short
Glass flake；
(3) according to mass fraction meter, 40~80 parts of fluorocarbon resin, compatible modified glass flakes 3-10 made from step (1) are weighed
Part, solvent 1-20 parts, 1~30 part of additive, stir, obtain compo；
(4) by compo and curing agent according to 7：1-15:Brushed after 1 ratio mixing in matrix surface, obtain organic coating；
(5) before treating organic coating not yet surface drying, by the long glass flake and hydrophobically modified of hydrophobically modified made from step (2)
Short glass flake is sprinkling upon the organic coating layer surface, wherein, short hydrophobically modified glass flake is mixed in long hydrophobically modified glass flake
Between, one end of the long glass flake of at least part of hydrophobically modified is embedded in organic coating, other end protrusion organic coating table
Face, form the hydrophobic capillary pipe structure with sharpened surface；After organic coating is fully cured, removing remains in organic coating table
The nonadherent hydrophobically modified glass flake in face.
12. the preparation method of matrix surface anticorrosive coat as claimed in claim 11, it is characterized in that：In described step (4), Gu
Agent is Polyisocyanate esters curing agent.
13. the preparation method of matrix surface anticorrosive coat as claimed in claim 11, it is characterized in that：In described step (5), dredge
The mass ratio of the long glass flake of short glass flake and hydrophobically modified that water is modified is 1:1-1:10.
14. the preparation method of matrix surface anticorrosive coat as claimed in claim 11, it is characterized in that：In described step (1), silicon
Alkane coupling agent includes γ-aminopropyltrialkoxysilane, γ-glycidyl ether oxygen propyl trialkoxy silane, γ-metering system
One or more in propyl trialkoxy silane, vinyl trialkyl oxysilane, γ-chloropropyl trialkoxy silane
Mixture.
15. the preparation method of matrix surface anticorrosive coat as claimed in claim 11, it is characterized in that：In described step (2), dredge
Water modifying agent is octadecyl trichlorosilane alkane, ten trifluoro octyltrialkoxysilanes, ten difluoro heptyl propyl trialkoxy silanes
In one or more of mixtures.
16. the preparation method of matrix surface anticorrosive coat as claimed in claim 11, it is characterized in that：It is molten in described step (3)
Agent includes one or more of mixtures in propylene glycol methyl ether acetate, toluene, dimethylbenzene, butyl acetate；Described step (3)
In, additive includes the one or more in defoamer, levelling agent, wetting dispersing agent.
17. the preparation method of matrix surface anticorrosive coat as claimed in claim 16, it is characterized in that：Described additive is by poly- two
0.1~2 part of methylsiloxane defoamer, 0.3~5 part of organosilicon levelling agent, 0.1~15 part of wetting dispersing agent, rutile type titanium
White powder 0.3-20 parts, mica powder 0.2-8 parts composition.
18. the preparation method of the matrix surface anticorrosive coat as described in any claim in claim 11-17, it is characterized in that：
In described step (1), the method that silane coupler carries out surface compatability modification to glass flake is：By silane coupler with
Ethanol solution mixes, and adds appropriate glass flake, is heated to reflux to after 50-80 DEG C stirring, then cools down, and takes out glass flake and washes
Wash, filter, dry.
19. the preparation method of the matrix surface anticorrosive coat as described in any claim in claim 11-17, it is characterized in that：
In described step (2), the method that hydrophobic modifier carries out surface compatability modification to glass flake is：By hydrophobic modifier with
Ethanol mixes, and prepares hydrophobically modified liquid, adds appropriate glass flake, be heated to reflux to after 50-80 DEG C stirring, then cool down,
Take out glass flake washing, filtering, drying.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6075072A (en) * | 1998-03-13 | 2000-06-13 | 3M Innovative Properties Company | Latent coating for metal surface repair |
| EP2086827B1 (en) * | 2006-10-26 | 2010-06-30 | Ppg B.V. | Fouling release new building coating process |
| CN103288365A (en) * | 2013-05-23 | 2013-09-11 | 宁波大达化学有限公司 | Method for surface functionalization treatment of glass flake for flake resin coating and flake resin coating |
| JP2013213223A (en) * | 2002-06-03 | 2013-10-17 | Ppg Industries Ohio Inc | Coating composition containing modified particle and method of using the same |
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2014
- 2014-10-22 CN CN201410566220.0A patent/CN105585908B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6075072A (en) * | 1998-03-13 | 2000-06-13 | 3M Innovative Properties Company | Latent coating for metal surface repair |
| JP2013213223A (en) * | 2002-06-03 | 2013-10-17 | Ppg Industries Ohio Inc | Coating composition containing modified particle and method of using the same |
| EP2086827B1 (en) * | 2006-10-26 | 2010-06-30 | Ppg B.V. | Fouling release new building coating process |
| CN103288365A (en) * | 2013-05-23 | 2013-09-11 | 宁波大达化学有限公司 | Method for surface functionalization treatment of glass flake for flake resin coating and flake resin coating |
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