CN105062248B - A kind of cationic anti-fouling anti-drag composite functional coating and coating - Google Patents
A kind of cationic anti-fouling anti-drag composite functional coating and coating Download PDFInfo
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- CN105062248B CN105062248B CN201510481609.XA CN201510481609A CN105062248B CN 105062248 B CN105062248 B CN 105062248B CN 201510481609 A CN201510481609 A CN 201510481609A CN 105062248 B CN105062248 B CN 105062248B
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
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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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/08—Homopolymers or copolymers of acrylic acid esters
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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Abstract
The invention belongs to anti-fouling anti-drag technical field of coatings, are related to a kind of ocean engineering anti-fouling anti-drag coating, more particularly to a kind of cationic anti-fouling anti-drag composite functional coating, also relate to a kind of using coating made from the coating.The cationic anti-fouling anti-drag composite functional coating includes：Particular cationic type filler, film-forming resin, curing agent and diluent.Cationic anti-fouling anti-drag composite functional coating provided by the invention, particular cationic type filler therein is the microparticle that surface carries positive charge, microparticle is insulated from each other by film-forming resin in coat inside, so that the electrode potential of complex function coating in the seawater is just, to effectively prevent marine organisms attachment and be stained, and significantly reduce skin friction resistance.
Description
Technical field
The invention belongs to anti-fouling anti-drag technical field of coatings, are related to a kind of ocean engineering anti-fouling anti-drag coating, especially relate to
And a kind of cationic anti-fouling anti-drag composite functional coating, it also relates to a kind of using coating made from the coating.
Background technology
During the marine settings such as surface ship and underwater sailing body are at harbour of berthing, even in navigation, it will appear sea
The attachment of foreign biology be stained.The fouling organism type that whole world marine site has been reported has nearly 4000 kinds.The attachment master of marine organisms
To include two major classes：Microorganism attachment (mainly bacterium and diatom) and macroscopic view biological attachment (such as barnacle, bivalves, bryozoan and
Seaweed etc.).Marine organisms, which adhere to and are stained, can increase ship resistance, reduce ship speed, increase fuel consumption；Ship can also be increased
The cleaning difficulty and maintenance cost in body surface face.For the weapons of the oceans such as submarine, warship, it means that the decline of tactical qualities,
What is more makes its disabler.
Marine organisms hull surface attachment be stained, canonical process is：Organic compound is made by physical absorption
With hull substrate surface is adsorbed on, Modulated Films are formed, to change the physicochemical characteristic of hull substrate surface；Bacterium approaches ship with diatom
Body substrate wall surface simultaneously adhere to form biomembrane by ultimate depth；The then attachment of the macroscopic view such as macro and barnacle class biology, forms multiple
Miscellaneous biocoene.In each link of the above process, early period Modulated Films formation and the approach procedure of microorganism and wall surface be
Physical action process, is reversible；And the microorganism in later stage creeping on wall surface, depth attachment, schizogamy and follow-up
The attachment of macroscopical biology is biochemical action process, is irreversible.
In fact, in marine environment, diatom is the Primary Actor of accessibility attachment reversible process.Diatom is in electrostatic
Under the physical actions such as power, Van der Waals force, gravity and flow driving, approach hull wall surface and initial contact, subsequent diatom will select
Property creep and depth attachment, and form biomembrane by secreting extracellular polymeric, hereafter biological attachment be stained will be irreversible.
Therefore, antifouling focus is to inhibit the reversible link of physical approach attachment, that is, prevents the marine microorganisms such as diatom from approaching
Hull wall surface is simultaneously adsorbed in substrate.
Using antifouling paint as the development experience of the marine anti-pollution technology of representative three phases：It is conventional antifouling paint, organic
Tin copolymer self polishing copolymer antifouling paint and Tin-free Spc Anti-fouling Paint.Wherein, Organotin antifouling paints have broad-spectrum sterilization, prevent
The distinguishing features such as dirty ability is strong, antifouling timeliness length, but it is larger to the harmfulness of marine organisms and marine environment, at present by state
Border International Maritime Organization (IMO) is forbidden to use.The main poison (such as cuprous oxide) of Tin-free Spc Anti-fouling Paint and resin are due to from paint film
It degrades rapidly after middle release and loses toxicity, therefore compared with Organotin antifouling paints, relatively to the harm of marine environment
It is small, however existing Tin-free Spc Anti-fouling Paint haves the shortcomings that anti-fouling anti-drag effect is poor.Develop that anti-fouling anti-drag effect is good, ring
The new ocean engineering coating of border close friend, is still the important topic studied at present.
Invention content
The object of the present invention is to provide a kind of cationic anti-fouling anti-drag composite functional coatings, are mainly used for ocean engineering
Anti-fouling anti-drag.
The present invention also aims to provide a kind of anti-fouling anti-drag coating prepared by composite functional coating, coating is in seawater
In electrode potential be just, to effectively prevent marine organisms to adhere to and be stained, and to significantly reduce skin friction resistance.
In order to achieve the goal above, the technical solution adopted in the present invention is：A kind of compound work(of cationic anti-fouling anti-drag
Energy coating, the coating include：Particular cationic type filler, film-forming resin, curing agent and diluent.
Preferably, the parts by weight of particular cationic type filler are 2~20 parts, the parts by weight of film-forming resin are 50~
75 parts.
It is further preferred that the parts by weight of the curing agent are 5~15 parts, the parts by weight of diluent are 5~20 parts.
Wherein, the particular cationic type filler is metal or nonmetallic microparticle of the surface with positive charge.
The film-forming resin is selected from one or more of fluorocarbon resin, organic siliconresin and acrylic resin.
The curing agent is isocyanates, and the diluent is dimethylbenzene and/or butyl acetate.
The particular cationic type filler is made by the preparation method included the following steps：
(1) charging particle
Metal or the nonmetallic microparticle that grain size r is 0.01 μm~20 μm are chosen, particle is carried out by DC corona discharge
It is charged, the two-plate voltage U of the DC electric field used1Control is 5kV~50kV, uniform electric field E0, obtain surface difference lotus positive electricity
With the microparticle of bear electricity, that is, charge microparticle；
(2) electrostatic separation
By surface, the microparticle of lotus positive electricity and bear electricity is detached by electrostatic sorting method respectively：The electrification is micro-
Particle is sent to the top of two electrification tablets that are vertical and being correspondingly arranged, and one of electrification tablet is positively charged, another band
Level strip negative electricity, electrification microparticle fall from the centre position between described two electrification tablets, occur in dropping process
Deflection, the microparticle of surface lotus positive electricity is to deflection at electronegative electrification tablet, and the microparticle of surface bear electricity is to positively charged
It charges at tablet and deflects, realize the separation of the microparticle of surface lotus positive electricity and surface bear electricity, wherein micro- of surface lotus positive electricity
Grain is the particular cationic type filler；
The quality m for charging microparticle, the carried charge q for charging microparticle, two vertical electrification tablets being correspondingly arranged
Voltage U between spacing d, the vertical height L of two electrification tablets, two electrification tablets2It should meet：
2U2QL=md2G,
Wherein, g is acceleration of gravity.
The microparticle is any one of aluminum particle, titanium dioxide granule, silica dioxide granule and silicon-carbide particle.
A kind of anti-fouling anti-drag coating is made by the preparation method included the following steps：
It is weighed by following parts by weight：2~20 parts of particular cationic type filler, 50~75 parts of film-forming resin, 5~
15 parts of curing agent, 5~20 parts of diluent, are uniformly mixed, and anti-fouling anti-drag coating is made；
The anti-fouling anti-drag coating is coated on matrix surface in a manner of spraying or brush, after curing of coating, i.e., in matrix
Prepare anti-fouling anti-drag coating in surface.
Preferably, the thickness of the anti-fouling anti-drag coating is 0.1mm~1mm.
In order to clearly describe beneficial effects of the present invention, it is necessary first to approach the object of the objects wall surfaces such as hull to diatom
Reason mechanism further illustrates.During diatom approaches the wall surface of hull etc., surface electrode current potential and ion are quiet
Electric power has a significant impact it.For diatom and most of marine microorganism, due to the ionization of phosphoryl and carboxylic acid group,
Cell surface is usually negatively charged, electrification situation can be assessed by zeta current potentials, as diatom zeta current potentials be about-
28mV.Based on the above analysis, it is believed that diatom can be inhibited to approach hull etc. by changing the electrode potential of base material
Wall surface, to realize the anti-fouling anti-drag of the marine settings such as surface ship and underwater sailing body.Because when the electricity of coating material
Electrode potential is timing, according to double electrode layer theory, the zeta current potentials on the surface of coating material be it is negative, can under electrostatic repulsion effect
Effectively to repel the same attachment such as diatom etc. in electronegativity.
Particular cationic type the filler such as metal of surface lotus positive electricity or nonmetallic microparticle are drawn in the invention
Entered in anti-fouling anti-drag composite functional coating, anti-fouling anti-drag complex function coat inside obtained contain a large amount of graininess sun from
Subtype functional filler, i.e., positively charged microparticle, so that electricity is being presented just in the electrode potential of complex function coating surface
Property, under the effect of electric double layer effect, electronegativity is presented in hull coatings near wall fluid media (medium), under the effect of ion electrostatic repulsion,
It is in the marine organisms such as the diatom of electronegativity approach wall surface that cell surface, which can effectively be inhibited, equally, to effectively prevent marine organisms
Adhere to and be stained, principle schematic is shown in shown in attached drawing 1.
In addition, during ship's navigation, fluid media (medium) --- the hydrone of solid-liquid wall surface shearing is participated in, is a kind of pole
Property molecule, it is attracting existing that with the hydrogen atom in another neighbouring hydrone positive and negative charge can occur for the oxygen atom in a hydrone
As forming the active force to interconnect, i.e. hydrogen bond between adjacent hydrone.Due to the work of the positively charged microparticle in coating of the present invention
With so that electropositivity is presented in the electrode potential of complex function coating surface, and then the hydrogen bond weakened between near wall hydrone is strong
Degree so that the regular arrangement of near wall hydrone, to effectively reduce the coefficient of kinetic viscosity of near wall aqueous medium, frictional resistance
It is greatly lowered, plays the role of drag reduction, principle schematic is shown in shown in attached drawing 2.
Cationic anti-fouling anti-drag composite functional coating provided by the invention, component include that particular cationic type is filled out
Material, film-forming resin, curing agent and diluent.Particular cationic type filler therein is the microparticle that surface carries positive charge.
It is made in the film forming procedure of coating by the coating, diluent volatilization, curing agent participates in crosslinking curing, therefore obtained painting
The ingredient of layer is only left particular cationic type filler and film-forming resin, particular cationic type filler pass through into coat inside
Film resin is insulated from each other so that the electrode potential of complex function coating in the seawater is just, to effectively prevent marine organisms attached
It and is stained, and significantly reduce skin friction resistance.
Cationic anti-fouling anti-drag composite functional coating provided by the invention has anti-fouling anti-drag significant effect, construction party
Just, it is suitable for the features such as large-scale production.In addition, unlike Conventional marine antifouling paint, composite functional coating of the invention
It is the electrode potential for changing coating surface by particular cationic type functional filler, utilizes interionic electrostatic repulsion object
Rationally prevent marine organisms from approaching or adsorbing, without the biology poisoning ingredient such as organotin, acrylic acid copper, zinc acrylate resin, to sea
Foreign biological nontoxic side effect, it is environmental-friendly.
Description of the drawings
Fig. 1 is that the anti-fouling anti-drag coating of the present invention prevents the principle schematic of marine organisms approach wall surface；
Fig. 2 is the HYDROGEN BOND INTENSITY principle schematic of the anti-fouling anti-drag coating reduction near wall hydrone of the present invention；
Fig. 3 is the electrostatic separation process schematic of particular cationic type filler.
Specific implementation mode
The technical scheme of the invention is described in detail through specific implementation examples, it should be noted that these realities
It applies example and is merely to illustrate the present invention and should not be construed as limiting the invention.
First, particular cationic type filler is prepared：
(1) charging particle
Choose grain size r be 0.01 μm~20 μm spherical, sheet or granulated metal or nonmetallic microparticle, such as aluminium powder
Grain, titanium dioxide granule, silica dioxide granule or silicon-carbide particle etc. carry out charging particle by DC corona discharge, use
DC electric field two-plate voltage U1Control is 5kV~50kV, uniform electric field E0, obtain surface difference lotus positive electricity and bear electricity
Microparticle, that is, charge microparticle；
In the charging particle stage, DC corona discharge in a manner of field charging and diffusional charging, make microparticle table
Face becomes positively charged lotus or negative electrical charge.In DC electric field, since corona discharge generates a large amount of free electron, free electron makes
Gas molecule between pole plate is ionized to form negative ions, and lotus is carried out to microparticle under the action of electric field force and ion thermal diffusion
Electro ultrafiltration.Under the conditions of DC corona discharge, the charged process of particle has two kinds of forms of field charging and diffusional charging.Grain size r
In 0.01 μm~0.2 μm of microparticle based on diffusional charging, the saturation electricity of single microparticle diffusional charging is q1=2 π ε0rKT/e；Grain size r in 0.2 μm~20 μm of microparticle based on field charging, the saturation electricity of single microparticle field charging
Amount is q2=12 π ε0r2E0ε/(ε+2ε0)；In two formulas, ε0It is Bohr for dielectric constant that permittivity of vacuum, ε are microparticle, K
Hereby graceful constant, T are the absolute temperature of discharge space, e is basic electric charge.Final carrying capacity of the microparticle in DC electric field
It is the result of field charging and diffusional charging coupling.
Carrying capacity of the microparticle in DC electric field, it is in close relations with the voltage of DC electric field and the grain size of microparticle.
The average carrying capacity of microparticle increases with grain size and is increased under field charging and diffusional charging form, while with the increasing of DC voltage
Increase greatly.Therefore, the control to microparticle carried charge can be realized by adjusting grain diameter and DC voltage.Different lotuses
The average carrying capacity of microparticle under electric condition is measured using the ELPI electrostatic low voltage impact devices of Dekati companies of Finland.
Pass through the field charging and diffusional charging under the conditions of DC electric field so that microparticle surfaces carry positive charge or negative electricity
Lotus.The microparticle that surface is respectively provided with to positive and negative charge is realized by following electrostatic separation step.
(2) electrostatic separation
By surface, the microparticle of lotus positive electricity and bear electricity is detached by electrostatic sorting method respectively：Microparticle will be charged
It send to the top of two electrification tablets that are vertical and being correspondingly arranged, one of electrification tablet is positively charged, another band level
Strip negative electricity forms electric field region between two electrification tablets, and electrification microparticle is through funnel between two vertical electrification tablets
Centre position fall, in dropping process charge microparticle two electrification tablets between by gravity and electric field force collective effect
And deflect, the microparticle of surface lotus positive electricity to deflection at electronegative electrification tablet and eventually falls into B barrels, surface bear electricity
Microparticle to deflecting at positively charged electrification tablet and eventually falling into A barrel, realize surface lotus positive electricity and electric micro- of surface bear
The separation of particle, electrostatic separation process schematic is as shown in Figure 3.The microparticle of the surface lotus positive electricity obtained in B barrels is i.e. of the invention
Raw material --- particular cationic type filler；
The quality m for charging microparticle, the carried charge q for charging microparticle, two vertical electrification tablets being correspondingly arranged
Voltage U between spacing d, the vertical height L of two electrification tablets, two electrification tablets2It should meet：
2U2QL=md2G,
Wherein, g is acceleration of gravity.Meet above formula and can guarantee two kinds of microparticles when leaving the electric field region between two-plate,
There is maximum amount of deflection to ensure to be separated from each other, while being not exposed to corresponding pole plate just again, and then realizes best sorting
Effect.
Embodiment 1
Cationic anti-fouling anti-drag composite functional coating provided in this embodiment, consisting of：
The anti-fouling anti-drag coating prepared using above-mentioned coating is made by the preparation method included the following steps：
It weighs in parts by weight：Aluminum particle with positive charge of 20 parts of surfaces, 50 parts of fluorocarbon resins, 5 parts of isocyanates,
5 parts of dimethylbenzene, are uniformly mixed, and anti-fouling anti-drag coating is made；
Before painting operation, first the pollutants such as the greasy dirt of substrate surface, dust or rusty stain are cleaned out, then with spraying side
Formula connects paint (FJ-18) with epoxy in substrate surface successively application antirust paint (616 chlorinated rubber iron oxide red thick-slurry type), waits for antirust paint
After the film curing for connecting paint with epoxy, the painting operation of the present embodiment composite functional coating is carried out, painting is filled with spraying method painting
It is overlying on epoxy connection paint paint film, after curing of coating, that is, prepares anti-fouling anti-drag coating, the thickness of anti-fouling anti-drag coating is
0.1mm。
Water is directly descended to carry out anti-fouling anti-drag performance test after anti-fouling anti-drag coating is dry.The result shows that connecting paint in epoxy
It coats traditional tin-free self-polishing nonpolluting coating on paint film to compare, the diatom tachment inhibiting of the anti-fouling anti-drag coating of the present embodiment
Rate improves 95%, and the quantity of mussel attachment byssus reduces 87%；Compared with conventional hydraulic smooth surface, in 10.5m/s
The speed of a ship or plane under, the drag reducing efficiency of anti-fouling anti-drag coating is 25.4%.Anti-fouling anti-drag significant effect improves.
Embodiment 2
Cationic anti-fouling anti-drag composite functional coating provided in this embodiment, consisting of：
The anti-fouling anti-drag coating prepared using above-mentioned coating is made by the preparation method included the following steps：
It weighs in parts by weight：Titanium dioxide granule with positive charge of 10 parts of surfaces, 60 parts of fluorocarbon resins, 15 parts it is organic
Silicones, 15 parts of isocyanates, 20 parts of dimethylbenzene, are uniformly mixed, and anti-fouling anti-drag coating is made；
Before painting operation, first the pollutants such as the greasy dirt of substrate surface, dust or rusty stain are cleaned out, then with spraying side
Formula connects paint (FJ-18) with epoxy in substrate surface successively application antirust paint (616 chlorinated rubber iron oxide red thick-slurry type), waits for antirust paint
After the film curing for connecting paint with epoxy, the painting operation of the present embodiment composite functional coating is carried out, painting is filled with spraying method painting
It is overlying on epoxy connection paint paint film, after curing of coating, that is, prepares anti-fouling anti-drag coating, the thickness of anti-fouling anti-drag coating is 1mm.
Water is directly descended to carry out anti-fouling anti-drag performance test after anti-fouling anti-drag coating is dry.The result shows that connecting paint in epoxy
It coats traditional tin-free self-polishing nonpolluting coating on paint film to compare, the diatom tachment inhibiting of the anti-fouling anti-drag coating of the present embodiment
Rate improves 86%, and the quantity of mussel attachment byssus reduces 82%；Compared with conventional hydraulic smooth surface, 22m/s's
Under the speed of a ship or plane, the drag reducing efficiency of anti-fouling anti-drag coating is 27.8%.Anti-fouling anti-drag significant effect improves.
Embodiment 3
Cationic anti-fouling anti-drag composite functional coating provided in this embodiment, consisting of：
The anti-fouling anti-drag coating prepared using above-mentioned coating is made by the preparation method included the following steps：
It weighs in parts by weight：Silica dioxide granule with positive charge of 2 parts of surfaces, 73 parts of organic siliconresins, 10 parts it is different
Cyanate, 5 parts of dimethylbenzene, 5 parts of butyl acetates, are uniformly mixed, and anti-fouling anti-drag coating is made；
Before painting operation, first the pollutants such as the greasy dirt of substrate surface, dust or rusty stain are cleaned out, then with brushing side
Formula connects paint (FJ-18) with epoxy in substrate surface successively application antirust paint (616 chlorinated rubber iron oxide red thick-slurry type), waits for antirust paint
After the film curing for connecting paint with epoxy, the painting operation of the present embodiment composite functional coating is carried out, painting is filled with brushing mode and applies
It is overlying on epoxy connection paint paint film, after curing of coating, that is, prepares anti-fouling anti-drag coating, the thickness of anti-fouling anti-drag coating is
0.5mm。
Water is directly descended to carry out anti-fouling anti-drag performance test after anti-fouling anti-drag coating is dry.The result shows that connecting paint in epoxy
It coats traditional tin-free self-polishing nonpolluting coating on paint film to compare, the diatom tachment inhibiting of the anti-fouling anti-drag coating of the present embodiment
Rate improves 55%, and the quantity of mussel attachment byssus reduces 35%；Compared with conventional hydraulic smooth surface, 22m/s's
Under the speed of a ship or plane, the drag reducing efficiency of anti-fouling anti-drag coating is 11.7%.Anti-fouling anti-drag significant effect improves.
Embodiment 4
Cationic anti-fouling anti-drag composite functional coating provided in this embodiment, consisting of：
The anti-fouling anti-drag coating prepared using above-mentioned coating is made by the preparation method included the following steps：
It weighs in parts by weight：13 parts of surfaces carry silicon-carbide particle, 70 parts of acrylic resins, the 10 parts of isocyanides of positive charge
Acid esters, 7 parts of dimethylbenzene, are uniformly mixed, and anti-fouling anti-drag coating is made；
Before painting operation, first the pollutants such as the greasy dirt of substrate surface, dust or rusty stain are cleaned out, then with brushing side
Formula connects paint (FJ-18) with epoxy in substrate surface successively application antirust paint (616 chlorinated rubber iron oxide red thick-slurry type), waits for antirust paint
After the film curing for connecting paint with epoxy, the painting operation of the present embodiment composite functional coating is carried out, painting is filled with brushing mode and applies
It is overlying on epoxy connection paint paint film, after curing of coating, that is, prepares anti-fouling anti-drag coating, the thickness of anti-fouling anti-drag coating is
0.5mm。
Water is directly descended to carry out anti-fouling anti-drag performance test after anti-fouling anti-drag coating is dry.The result shows that connecting paint in epoxy
It coats traditional tin-free self-polishing nonpolluting coating on paint film to compare, the diatom tachment inhibiting of the anti-fouling anti-drag coating of the present embodiment
Rate improves 87%, and the quantity of mussel attachment byssus reduces 74%；Compared with conventional hydraulic smooth surface, 22m/s's
Under the speed of a ship or plane, the drag reducing efficiency of anti-fouling anti-drag coating is 27.2%.Anti-fouling anti-drag significant effect improves.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of cationic anti-fouling anti-drag composite functional coating, which is characterized in that the coating includes：Particular cationic
Type filler, film-forming resin, curing agent and diluent；
Wherein particular cationic type filler is metal or nonmetallic microparticle of the surface with positive charge；
The particular cationic type filler is made by the preparation method included the following steps：
（1）Charging particle
Metal or the nonmetallic microparticle that grain size r is 0.01 μm~20 μm are chosen, particle lotus is carried out by DC corona discharge
Electricity, the two-plate voltage U of the DC electric field used1Control is 5 kV~50 kV, uniform electric field E0, obtain surface difference lotus positive electricity
With the microparticle of bear electricity, that is, charge microparticle；
（2）Electrostatic separation
By surface, the microparticle of lotus positive electricity and bear electricity is detached by electrostatic sorting method respectively：By the electrification microparticle
It send to the top of two electrification tablets that are vertical and being correspondingly arranged, one of electrification tablet is positively charged, another band level
Strip negative electricity, electrification microparticle fall from the centre position between described two electrification tablets, deflect in dropping process,
The microparticle of surface lotus positive electricity is deflected at electronegative electrification tablet, and the microparticle of surface bear electricity is to positively charged band level
It is deflected at plate, realizes the separation of the microparticle of surface lotus positive electricity and surface bear electricity, wherein microparticle, that is, institute of surface lotus positive electricity
State particular cationic type filler；
The quality m for charging microparticle, the carried charge q for charging microparticle, two vertical spacing for charging tablet being correspondingly arranged
D, the voltage U between the vertical height L of two electrification tablets, two electrification tablets2It should meet：
2U2qL=md2G,
Wherein, g is acceleration of gravity.
2. cationic anti-fouling anti-drag composite functional coating according to claim 1, which is characterized in that particular cationic
The parts by weight of type filler are 2~20 parts, and the parts by weight of film-forming resin are 50~75 parts.
3. cationic anti-fouling anti-drag composite functional coating according to claim 2, which is characterized in that the curing agent
Parts by weight are 5~15 parts, and the parts by weight of diluent are 5~20 parts.
4. cationic anti-fouling anti-drag composite functional coating according to claim 1 or 2, which is characterized in that the film forming
Resin is selected from one or more of fluorocarbon resin, organic siliconresin and acrylic resin.
5. cationic anti-fouling anti-drag composite functional coating according to claim 3, which is characterized in that the curing agent is
Isocyanates, the diluent are dimethylbenzene and/or butyl acetate.
6. cationic anti-fouling anti-drag composite functional coating according to claim 1, which is characterized in that the microparticle is
Any one of aluminum particle, titanium dioxide granule, silica dioxide granule and silicon-carbide particle.
7. a kind of anti-fouling anti-drag coating, which is characterized in that be made by the preparation method included the following steps：
It is weighed by following parts by weight：2~20 parts of particular cationic type filler, 50~75 parts of film-forming resin, 5~15 parts
Curing agent, 5~20 parts of diluent, be uniformly mixed, anti-fouling anti-drag coating be made；Wherein particular cationic type filler
For metal of the surface with positive charge or nonmetallic microparticle；
The anti-fouling anti-drag coating is coated on matrix surface in a manner of spraying or brush, after curing of coating, i.e., in matrix surface
Prepare anti-fouling anti-drag coating；
Wherein particular cationic type filler is made by the preparation method included the following steps：
（1）Charging particle
Metal or the nonmetallic microparticle that grain size r is 0.01 μm~20 μm are chosen, particle lotus is carried out by DC corona discharge
Electricity, the two-plate voltage U of the DC electric field used1Control is 5 kV~50 kV, uniform electric field E0, obtain surface difference lotus positive electricity
With the microparticle of bear electricity, that is, charge microparticle；
（2）Electrostatic separation
By surface, the microparticle of lotus positive electricity and bear electricity is detached by electrostatic sorting method respectively：By the electrification microparticle
It send to the top of two electrification tablets that are vertical and being correspondingly arranged, one of electrification tablet is positively charged, another band level
Strip negative electricity, electrification microparticle fall from the centre position between described two electrification tablets, deflect in dropping process,
The microparticle of surface lotus positive electricity is deflected at electronegative electrification tablet, and the microparticle of surface bear electricity is to positively charged band level
It is deflected at plate, realizes the separation of the microparticle of surface lotus positive electricity and surface bear electricity, wherein microparticle, that is, institute of surface lotus positive electricity
State particular cationic type filler；
The quality m for charging microparticle, the carried charge q for charging microparticle, two vertical spacing for charging tablet being correspondingly arranged
D, the voltage U between the vertical height L of two electrification tablets, two electrification tablets2It should meet：
2U2qL=md2G,
Wherein, g is acceleration of gravity.
8. anti-fouling anti-drag coating according to claim 7, which is characterized in that the thickness of the anti-fouling anti-drag coating is 0.1
The mm of mm~1.
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| CN201510481609.XA CN105062248B (en) | 2015-08-03 | 2015-08-03 | A kind of cationic anti-fouling anti-drag composite functional coating and coating |
| PCT/CN2015/000644 WO2017020147A1 (en) | 2015-08-03 | 2015-09-16 | Cationic type antifouling and anti-drag composite functional paint and coating |
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| CN112552793B (en) * | 2020-12-11 | 2021-10-29 | 吉林大学 | Bionic drag reduction coating for large-scale spinning body and preparation method thereof |
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| JPH07145333A (en) * | 1993-11-22 | 1995-06-06 | Toyobo Co Ltd | Resin composition for marine paint |
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