CN109054538A - A kind of fluorine-containing damping paint and preparation method thereof - Google Patents
A kind of fluorine-containing damping paint and preparation method thereof Download PDFInfo
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- CN109054538A CN109054538A CN201810813452.XA CN201810813452A CN109054538A CN 109054538 A CN109054538 A CN 109054538A CN 201810813452 A CN201810813452 A CN 201810813452A CN 109054538 A CN109054538 A CN 109054538A
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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
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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
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
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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
- C09D5/1687—Use of special additives
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention provides a kind of fluorine-containing damping paint and preparation method thereof, is related to damping paint technical field.A kind of fluorine-containing damping paint, its raw material includes: 10~65 parts of acrylic emulsion, 0.5~10 part of fluorinated acrylate emulsion, 0.5~25 part of epoxy resin latex, 0.5~15 part of expanded graphite, 0.8~20 part of mica, 0.5~8 part of fluorocarbon surfactant, 0.1~30 part of neutralizer, 0.5~30 part of coalescing agent, 5~70 parts of pigments and fillers and 3~50 parts of water.Preparation method is to be added to the water after mixing mica and expanded graphite, and pigments and fillers are added after mixing, obtain filler slurry；Acrylic emulsion, fluorinated acrylate emulsion, epoxy resin latex, fluorocarbon surfactant, neutralizer and coalescing agent then is added in filler slurry to be mixed, coating is obtained.The coating is suitable for industrialized production due to having both the damping characteristic of fluorine-containing oil rub resistance, good weatherability characteristic and damping noise reduction.
Description
Technical field
The present invention relates to damping paint technical fields more particularly to a kind of fluorine-containing damping paint and preparation method thereof.
Background technique
In the mechanical equipment of the vehicle and running run at high speed, vibration is easy to cause structural material tired, meeting when serious
Cause material is broken, part falls off will likely influence the service life of material, leaves security risk for the safe operation of locomotive.Place
The precision instrument that works in the environment of frequent vibration, instrument, precision are chronically at vibration and noise circumstance vulnerable to influence
In staff, it is easier to generate fatigue, irritated, mood, and easily induce serious safety accident.Damping paint is that one kind has both
The coating of vibration and noise reducing and sound-insulation noise function.Vibration suppression and noise can be controlled in vibration component surface by direct spraying
Reason is easy to construct and easy to maintain, thus is widely used.Fluorine material is due to the high bond energy of the C-F key of intramolecular is with hypopolarization
With excellent high temperature resistant, resistant to chemical media, waterproof and oilproof performance and be widely used in aerospace, petrochemical industry, medicine, electricity
Power, energy field.Fluoro-containing coating is a kind of emerging functional coating, there is excellent weather-proof, corrosion-resistant and outstanding resistance to greasy dirt
Performance coheres the two-phase interface of polyester film isopolarity plastics, and intensity is high, and flexibility is good, and weatherability is strong, is preferably to build
It builds, mechanical equipment instrument fluoro coatings.Damping paint by macromolecule resin be added suitable filler and auxiliary material prepare and
At, it is that one kind can be coated on various metal plate-like structure surfaces, the sapecial coating with vibration and noise reducing and certain sealing performance,
It can be widely used in the vibration damping of aircraft, ship, vehicle and various machinery.Fluorine-containing damping paint is combined with fluorine-containing lotion
Weather-proof, corrosion-resistant, oil-stain-preventing characteristic and functional damping characteristic, be a kind of functional New Damping coating.
Patent CN107603367A discloses a kind of functional waterborne fluoro emulsion and preparation method thereof, discloses in the patent
Waterborne fluoro emulsion apparent property it is good, excellent combination property has both the performances such as antibacterial, heat preservation, heat-insulated, environmentally friendly.But matrix tree
The compatibility of rouge is poor, and damping is poor.Patent CN107400429A discloses a kind of graphene aqueous damping coating and its system
Preparation Method has impact resistance, salt fog resistance and the good feature of damping capacity.But graphene be graphite oxide reduction removing at
The nano material of a small number of lamellas, industrialization degree is low at present, at high cost, and with the development of science and technology, to aircraft, ship, vehicle
Weather-proof, the oil-stain-preventing, impact resistance used with various mechanical equipment instruments and construction material in various complex conditions, salt spray resistance
Property and damping noise reduction damping capacity have higher requirement.Therefore, design a kind of at low cost, and the strong coating of damping capacity is very
It is necessary to.
Summary of the invention
The purpose of the present invention is to provide a kind of fluorine-containing damping paint, this coating has both oil rub resistance, good weatherability and damping
The damping characteristic of noise reduction.
Another object of the present invention is to provide a kind of preparation method of fluorine-containing damping paint, preparation method is simple, cost
It is low, it is easily operated, and preparation process is easy to industrialize, it is environmental-friendly.
The present invention solves its technical problem and adopts the following technical solutions to realize.
A kind of fluorine-containing damping paint, in parts by weight, the raw material of the fluorine-containing damping paint includes:
It is 10~65 parts of acrylic emulsion, 0.5~10 part of fluorinated acrylate emulsion, 0.5~25 part of epoxy resin latex, swollen
0.5~15 part of swollen graphite, 0.8~20 part of mica, 0.5~8 part of fluorocarbon surfactant, 0.1~30 part of neutralizer, coalescing agent
0.5~30 part, 5~70 parts of pigments and fillers and 3~50 parts of water.
The present invention also proposes a kind of preparation method of fluorine-containing damping paint, comprising the following steps:
The mica and the expanded graphite are added to the water and mix, the pigments and fillers be then added, after mixing by S1
Dispersed, obtains filler slurry；
The acrylic emulsion, the fluorinated acrylate emulsion, the epoxy resin is added in the filler slurry in S2
Lotion, the fluorocarbon surfactant, the neutralizer and the coalescing agent are mixed, and are obtained the fluorine-containing damping and are applied
Material.
A kind of beneficial effect of fluorine-containing damping paint of the embodiment of the present invention and preparation method thereof is:
1, the present invention is blended by acrylic emulsion, epoxy resin, fluorinated acrylate, passes through fluorine-containing surfactant tune
It controls the compatibility of three and widens the damping temperature domain of damping paint, the coating of wide damping temperature domain can be prepared.
2, fluorine-containing damping paint overall process of the present invention carries out at normal temperature, and energy conservation and environmental protection takes water as a solvent, ring
Border is friendly, and preparation process is easy to industrialize, and cost is remarkably decreased compared with graphene.Expanded graphite is due to graphite synusia spacing
Increase, space steric effect not only improves the damping capacity of coating, also gives full play to the work that graphite improves coating heat transfer performance
With.
3, fluorine-containing damping paint of the present invention, due to having both fluorine-containing oil rub resistance, good weatherability characteristic and damping drop
The damping characteristic made an uproar, can various complex environments and under the conditions of protection instrument, mechanical equipment etc. operating use.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of preparation flow figure of fluorine-containing damping paint of the embodiment of the present invention；
Fig. 2 is the SEM picture of the expanded graphite of microwave expansion of embodiment of the present invention method preparation；
Fig. 3 is the water contact angle test chart for the fluorine-containing damping paint that the embodiment of the present invention 5 provides.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
A kind of fluorine-containing damping paint of the embodiment of the present invention and preparation method thereof is specifically described below.
The present invention provided in an embodiment of the present invention proposes a kind of fluorine-containing damping paint, in parts by weight, the fluorine-containing resistance
The material of damping paint includes:
It is 10~65 parts of acrylic emulsion, 0.5~10 part of fluorinated acrylate emulsion, 0.5~25 part of epoxy resin latex, swollen
0.5~15 part of swollen graphite, 0.8~20 part of mica, 0.5~8 part of fluorocarbon surfactant, 0.1~30 part of neutralizer, coalescing agent
0.5~30 part, 5~70 parts of pigments and fillers and 3~50 parts of water.
Fluorine-containing damping paint is combined with the weather-proof, corrosion-resistant of fluorine-containing lotion, oil-stain-preventing characteristic and functional resistance
Damping characteristics are a kind of functional New Damping coating.Fluorine-containing damping paint also added mica and expanded graphite.Mica has pole
High point insulating, antiacid, alkali resistant have outside the preferably performances such as elasticity, toughness and sliding property, are also equipped with heat-resisting, sound insulation, shape
The features such as state rule, adhesive force is strong.For expanded graphite since graphite synusia spacing increases, space steric effect not only improves coating
Damping capacity, also give full play to graphite improve coating heat transfer performance effect.Above-mentioned advantage, so that prepared by the present invention fluorine-containing
Damping paint has both the damping characteristic of fluorine-containing oil rub resistance, good weatherability characteristic and damping noise reduction, can be in various complex environments
The operating of instrument, mechanical equipment etc. is protected to use under the conditions of.
Further, in a preferred embodiment of the present invention, in parts by weight, the acrylic emulsion be 30~60 parts,
2~9 parts of the fluorinated acrylate emulsion, 10~20 parts of the epoxy resin latex, the expanded graphite are 3~10 parts, institute
State that mica is 8~16 parts, the fluorocarbon surfactant is 1~5 part, the neutralizer is 5~25 parts, the coalescing agent is
5~25 parts, the pigments and fillers are 20~60 parts and the water is 20~40 parts.Under the ratio, the proportion of each raw material is more
It is scientific and reasonable, achieve the effect that better anti-pollution, damping noise reduction.
It is further preferable that in a preferred embodiment of the present invention, in parts by weight, 40~60 parts of the acrylic emulsion,
6~9 parts of the fluorinated acrylate emulsion, 15~20 parts of the epoxy resin latex, 3~7 parts of expanded graphite, mica 8~16
Part, 1~5 part of fluorocarbon surfactant, 5~15 parts of neutralizer, 5~15 parts of coalescing agent, 30~50 parts of pigments and fillers and water are
30~40 parts.Under this ratio, the hydrophobic ability of prepared fluorine-containing damping paint is stronger, contamination resistance and damped coefficient
It is good.
Further, the acrylic emulsion is selected from one of pure-acrylic emulsion, styrene-acrylic emulsion and silicone acrylic emulsion or a variety of.
Further, the pure-acrylic emulsion is by acrylic acid, methacrylic acid, methyl methacrylate and other propylene
One of esters of gallic acid or the copolymer emulsion of a variety of formation.This emulsion particle diameter is thin, high glaze.And with excellent weather-proof
Property, excellent anti-after tack, especially resistance to ag(e)ing and Bao Sebao light and resistance to viscous performance advantage are prominent, have wide applicability.
Further, the styrene-acrylic emulsion is as styrene and acrylate monomer through being copolymerized cream obtained by emulsion copolymerization
Liquid.The adhesive force of styrene-acrylic emulsion is good, and paint film is transparent, and water-fast, resistance to ag(e)ing, water resistance, alkaline resistance properties are good.
Further, the silicone acrylic emulsion is added suitable by the organic silicon monomer containing unsaturated bond and acrylic monomer
The lotion that is polymerized of auxiliary agent.Silicone acrylic emulsion combines organosilicon fire-resistant, weatherability, chemical-resistant, hydrophobic, surface
High colour retention, flexibility, the adhesion of energy low not v ulnerability and acrylic resin.
In the preferred embodiment, acrylic emulsion selects styrene-acrylic emulsion, and styrene-acrylic emulsion price is compared to pure C
Lotion and silicone acrylic emulsion price are lower, so that the fluorine-containing damping paint cost prepared reduces, but have water-fast, ageing-resistant
Property, water resistance, alkaline resistance properties.
Further, the fluorinated acrylate emulsion can be perfluor alkyl ethyl acrylate lotion.It can also be with
It is one such or a variety of copolymerization shape of perfluoroalkyl acrylate and acrylic acid, methyl methacrylate, butyl acrylate
At lotion.Such as fluorinated acrylate emulsion is the copolymer emulsion obtained by perfluoroalkyl acrylate and acroleic acid polymerization,
The copolymer emulsion either obtained by perfluoroalkyl acrylate and acrylic acid, methyl methacrylate polymerization.The perfluor alkane
The molecular formula of base ethyl propylene acid esters lotion is C2F5(CF2CF2)nCH2CH2OCOCH=CH2, wherein n=2~6.
Further, in the preferred embodiment, fluorinated acrylate emulsion is perfluor alkyl ethide acrylic acid
Ester lotion with excellent Water-proof and oil-proof and anti-pollution function, and can make the product of processing keep original color, feel
And the advantages that gas permeability.
Further, it is living to be selected from cation fluorine carbon surface active agent, anion fluorocarbon surface for the fluorocarbon surfactant
One kind of property agent and betaine type fluorocarbon surfactant.
It is further preferable that in the preferred embodiment, the fluorocarbon surfactant is hexafluoropropylene oxide three
Aggressiveness quaternary ammonium salt belongs to cation fluorine carbon surface active agent, has unique antistatic, sterilization and other effects, can improve coating
Levelability.
Further, the expanded graphite is prepared with the following method:
Oxidant is added in natural graphite, carries out oxidation intercalation at normal temperature, then uses microwave expansion method or high temperature
Plavini is expanded, and expanded graphite is obtained.Wherein, the oxidant includes concentrated nitric acid and potassium permanganate.The natural graphite,
The mass ratio of the concentrated nitric acid and the potassium permanganate is 1:1.5~5:1.5~6.
It is further preferable that in a preferred embodiment of the present invention, concentrated nitric acid and potassium permanganate are added in natural graphite, normal
Oxidation 20~90min of intercalation is carried out under temperature.Wherein, the mass ratio of natural graphite, concentrated nitric acid and potassium permanganate is 1:3:3.5.So
It is expanded afterwards with microwave expansion method, such as microwave 60s under the conditions of 600W, obtains expanded graphite.This method is obtained to expand stone
Ink is a kind of loose porous vermiform substance, and form is as shown in Figure 3.Expanded graphite preparation overall process at normal temperature into
Row, overcomes traditional oxidation process at high temperature, and energy conservation and environmental protection is environmental-friendly, and preparation process is easy to industrialize, and existing
Graphene in technology is compared, and cost is remarkably decreased.Expanded graphite is since graphite synusia spacing increases, and space steric effect is not
The damping capacity of coating is only improved, the effect that graphite improves coating heat transfer performance is also given full play to.
Further, the pigments and fillers are selected from titanium white, fumed silica, glass microballoon, wood fibre, light calcium, talcum
At least one of powder, coarse whiting and quartz sand.
Further, in the preferred embodiment, pigments and fillers include hollow glass microbead, fumed silica,
Light calcium and talcum powder.Wherein, the mass ratio of hollow glass microbead, fumed silica, light calcium and talcum powder be 0.5~1:2~
3:2~5:1~2.
Further, the coalescing agent can be at least one of propandiol butyl ether and propylene glycol methyl ether acetate.
In a preferred embodiment of the present invention, coalescing agent selects propandiol butyl ether.
The embodiment of the present invention also provides the preparation method of above-mentioned fluorine-containing damping paint, comprising the following steps:
The mica and the expanded graphite are added to the water and mix, the pigments and fillers be then added, after mixing by S1
Dispersed, obtains filler slurry；
Further, the expanded graphite and the mica are mixed with the mass ratio of 1:2~6.More preferentially, stone is expanded
Ink and mica are mixed with the mass ratio of 1:2~4.The graphite synusia spacing of expanded graphite is big, and after mixing, mica is formed in the coating
Stable damping structure, and it is than expanded graphite densification, can fill up graphite gap on this basis, and it is bigger to form intensity
Damping layer.
In a preferred embodiment of the present invention, mica, expanded graphite are added in deionized water, are stirred with the rate of 500r/min
Mix uniformly, be then added pigments and fillers, first stirred with the rate of 800r/min, then under 500W power ultrasonic disperse 90min to equal
It is even, obtain filler slurry.
The acrylic emulsion, the fluorinated acrylate emulsion, the epoxy resin is added in the filler slurry in S2
Lotion, the fluorocarbon surfactant, the neutralizer and the coalescing agent are mixed, and are obtained the fluorine-containing damping and are applied
Material.
Further, in step s 2, the mixing step are as follows:
The acrylic emulsion, the fluorinated acrylate emulsion, the epoxy resin latex, the fluorocarbon surface is living
Property agent mixing after, obtain mixture；The mixture is divided into 3~5 batches, is added in the filler slurry in batches, every batch of
After the filler slurry is added in mixture, 10~30min is stirred with the rate of 200~400r/min；To described in all batches
Mixture adds the neutralizer after adding and the coalescing agent adjusts pH value to 6~8, until all materials are added
After 30~90min is stirred with the rate of 800~1000r/min.Pass through acrylic emulsion, epoxy resin, fluorine-containing third
Olefin(e) acid ester is blended, and the damping temperature domain of damping paint is widened by the compatibility that fluorine-containing surfactant regulates and controls three, can be made
The coating of standby damping temperature domain wide out.Moreover, filler slurry is added in mixture in batches, be conducive to mixture and uniformly incorporate fill out
In slurry material, agglomeration is not generated.And the pH of its coating is modulated into neutrality, can protect will smear mechanical equipment.
Further, in a preferred embodiment of the present invention, the acrylic emulsion, fluorinated acrylate emulsion, asphalt mixtures modified by epoxy resin
Rouge and fluorocarbon surfactant are with the mixing of the mass ratio of 3~5:0.5~2:1.5~3:0.1~0.5, the mixing deployed with this ratio
Object has wide damping temperature domain and damping capacity.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of fluorine-containing damping paint provided in this embodiment, in parts by weight, raw material includes:
50 parts of acrylic emulsions, 8 parts of fluorinated acrylate emulsions, 20 parts of epoxy resin latexes, 2 parts of fluoro-carbon surface actives
Agent, 10 parts of micas, 3 parts of expanded graphites, in 30 parts of deionized waters, 30 parts of pigments and fillers, 10 parts of neutralizers and 10 parts of coalescing agents.
Fluorine-containing damping paint is made in above-mentioned raw materials as follows:
(1) mica, expanded graphite are added in deionized water, are stirred evenly with the rate of 500r/min, face is then added
Filler is stirred with the rate of 800r/min, then ultrasonic disperse 90min obtains filler slurry to uniform under 500W power.
(2) it after mixing acrylic emulsion, fluorinated acrylate emulsion, epoxy resin latex, fluorocarbon surfactant, obtains
To mixture；The mixture is divided into 3 batches, is added in the filler slurry in batches, institute is added in every batch of mixture
After stating filler slurry, 20min is stirred with the rate of 300r/min；Neutralization is added after to the addition of all batch
Agent and coalescing agent adjust pH value to 7, until 60min is stirred with the rate of 900r/min after all materials addition,
Obtain fluorine-containing damping paint.
Embodiment 2
A kind of fluorine-containing damping paint provided in this embodiment, in parts by weight, raw material includes:
40 parts of acrylic emulsions, 8 parts of fluorinated acrylate emulsions, 15 parts of epoxy resin latexes, 1.5 parts of fluoro-carbon surface actives
Agent, 10 parts of micas, 5 parts of expanded graphites, in 30 parts of deionized waters, 35 parts of pigments and fillers, 10 parts of neutralizers and 10 parts of coalescing agents.
Fluorine-containing damping paint is made in above-mentioned raw materials according to the method in embodiment 1.
Embodiment 3
A kind of fluorine-containing damping paint provided in this embodiment, in parts by weight, raw material includes:
45 parts of acrylic emulsions, 8 parts of fluorinated acrylate emulsions, 20 parts of epoxy resin latexes, 1.5 parts of fluoro-carbon surface actives
Agent, 15 parts of micas, 5 parts of expanded graphites, in 40 parts of deionized waters, 40 parts of pigments and fillers, 10 parts of neutralizers and 10 parts of coalescing agents.
Fluorine-containing damping paint is made in above-mentioned raw materials according to the method in embodiment 1.
Embodiment 4
A kind of fluorine-containing damping paint provided in this embodiment, in parts by weight, raw material includes:
50 parts of acrylic emulsions, 6 parts of fluorinated acrylate emulsions, 15 parts of epoxy resin latexes, 2 parts of fluoro-carbon surface actives
Agent, 15 parts of micas, 5 parts of expanded graphites, in 40 parts of deionized waters, 50 parts of pigments and fillers, 10 parts of neutralizers and 10 parts of coalescing agents.
Fluorine-containing damping paint is made in above-mentioned raw materials according to the method in embodiment 1.
Embodiment 5
A kind of fluorine-containing damping paint provided in this embodiment, in parts by weight, raw material includes:
60 parts of acrylic emulsions, 9 parts of fluorinated acrylate emulsions, 20 parts of epoxy resin latexes, 2.5 parts of fluoro-carbon surface actives
Agent, 15 parts of micas, 7 parts of expanded graphites, in 40 parts of deionized waters, 45 parts of pigments and fillers, 10 parts of neutralizers and 10 parts of coalescing agents.
Fluorine-containing damping paint is made in above-mentioned raw materials according to the method in embodiment 1.
Test example 1:
The detection of surface hydrophilic performance is carried out to 5 embodiments produced by the present invention, test contact angle result is as follows:
The contact angle of the fluorine-containing damping paint of 1 embodiment of table
| Embodiment | Contact angle (°) |
| Embodiment 1 | 120.5 |
| Embodiment 2 | 119.3 |
| Embodiment 3 | 119.8 |
| Embodiment 4 | 120.5 |
| Embodiment 5 | 121.3 |
The important indicator of the contact angular impulse coating surface anti-pollution of coating.The size of contact angle is to measure the surface of solids
The most commonly used standard of wellability.In general, if contact angle is greater than 90 °, the surface of solids is hydrophobic；Conversely, solid
Surface is hydrophilic.This hydrophobic structure generally has waterproof, mist, the important spy such as snow defence, anti-pollution, anti-oxidant, anticorrosion
Point.
As shown in table 1, the contact angle of 1~embodiment of embodiment 5 provided by the invention can reach 120 ° or so, have good
Except good hydrophobicity, it can prevent moisture from entering inside mechanical equipment by coating, mechanical equipment is damaged, play
Anticorrosion, anti-pollution, oxidation resistant effect.Wherein, according to the coating of embodiment 5 match, the angle of contact angle is maximum,
Its contamination resistance is best.Fig. 3 is 5 water contact angle test chart of the embodiment of the present invention.
Test example 2:
Damping capacity detection is carried out to 5 embodiments produced by the present invention, testing result is as shown in table 2.
The damping capacity of the fluorine-containing damping paint of 2 embodiment of table at different temperatures
The damping capacity of material is usually evaluated with the temperature range of δ > 0.3 damped coefficient Tan δ and Tan, and Tan δ value is got over
Greatly, the temperature range of δ > 0.3 Tan is bigger, and the damping of material is better.Damped coefficient is higher, the vibration and noise reducing that coating has
It is better with sound-insulation noise function.
From table 2 it can be seen that 1~embodiment of embodiment 5, in -15 DEG C~85 DEG C sections of temperature, damped coefficient Tan δ >
0.3, illustrate the effective damping wider range that fluorine-containing damping paint prepared by the present invention has.And at 0~25 DEG C
When possess higher damped coefficient, illustrate that fluorine-containing damping paint prepared by the present invention at daily temperature, possesses good subtract
The effect of vibration noise reduction and sound-insulation noise.Among this 5 embodiments, the damping that embodiment 5 embodies is best, illustrates this hair
It is bright to be blended by acrylic emulsion, epoxy resin, fluorinated acrylate, the compatibility of three is regulated and controled by fluorine-containing surfactant
And the damping temperature domain of damping paint is widened, prepare the coating of wide damping temperature domain.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of fluorine-containing damping paint, which is characterized in that in parts by weight, the raw material of the fluorine-containing damping paint includes:
10~65 parts of acrylic emulsion, 0.5~10 part of fluorinated acrylate emulsion, 0.5~25 part of epoxy resin latex, expansion stone
0.5~15 part of ink, 0.8~20 part of mica, 0.5~8 part of fluorocarbon surfactant, 0.1~30 part of neutralizer, coalescing agent 0.5
~30 parts, 5~70 parts of pigments and fillers and 3~50 parts of water.
2. a kind of fluorine-containing damping paint, which is characterized in that in parts by weight, the acrylic emulsion be 20~60 parts, it is described
2~9 parts of fluorinated acrylate emulsion, 10~20 parts of the epoxy resin latex, the expanded graphite are 3~10 parts, the cloud
Mother is 8~16 parts, the fluorocarbon surfactant is 1~5 part, the neutralizer is 5~25 parts, the coalescing agent be 5~
25 parts, the pigments and fillers are 20~60 parts and the water is 20~40 parts.
3. fluorine-containing damping paint according to claim 1, which is characterized in that the acrylic emulsion be selected from pure-acrylic emulsion,
One of styrene-acrylic emulsion and silicone acrylic emulsion are a variety of.
4. fluorine-containing damping paint according to claim 1, which is characterized in that the fluorinated acrylate emulsion is perfluor
Alkyl ethyl propylene acid esters lotion；Or for by perfluoroalkyl acrylate and acrylic acid, methyl methacrylate, butyl acrylate
It is one such or a variety of copolymerization formed lotion；The molecular formula of the perfluor alkyl ethyl acrylate lotion is C2F5
(CF2CF2)nCH2CH2OCOCH=CH2, wherein n=2~6.
5. fluorine-containing damping paint according to claim 1, which is characterized in that the fluorocarbon surfactant is selected from cation
One kind of fluorocarbon surfactant, anion fluorocarbon surfactant and betaine type fluorocarbon surfactant.
6. fluorine-containing damping paint according to claim 1, which is characterized in that the expanded graphite is made with the following method
It is standby:
Oxidant is added in natural graphite, carries out oxidation intercalation at normal temperature, then uses microwave expansion method or high-temperature expansion
Method is expanded, and expanded graphite is obtained；Wherein, the oxidant includes concentrated nitric acid and potassium permanganate；It is the natural graphite, described
The mass ratio of concentrated nitric acid and the potassium permanganate is 1:1.5~5:1.5~6.
7. fluorine-containing damping paint according to claim 1, which is characterized in that the pigments and fillers are selected from titanium white, gas phase dioxy
At least one of SiClx, glass microballoon, wood fibre, light calcium, talcum powder, coarse whiting and quartz sand.
8. a kind of preparation method of the fluorine-containing damping paint as described in claim 1~7 any one, which is characterized in that including
Following steps:
The mica and the expanded graphite are added to the water and mix by S1, and the pigments and fillers are then added, carry out after mixing
Dispersion, obtains filler slurry；
The acrylic emulsion, the fluorinated acrylate emulsion, epoxy resin cream is added in the filler slurry in S2
Liquid, the fluorocarbon surfactant, the neutralizer and the coalescing agent are mixed, and the fluorine-containing damping paint is obtained.
9. the preparation method of fluorine-containing damping paint according to claim 8, which is characterized in that in step s 2, described mixed
Close step are as follows:
By the acrylic emulsion, the fluorinated acrylate emulsion, the epoxy resin latex, the fluorocarbon surfactant
After mixing, mixture is obtained；The mixture is divided into 3~5 batches, is added in the filler slurry in batches, every batch of mixing
After the filler slurry is added in object, 10~30min is stirred with the rate of 200~400r/min；To be mixed described in all batches
Object adds the neutralizer after adding and the coalescing agent adjusts pH value to 6~8, until the addition of all raw materials finishes
30~90min is stirred with the rate of 800~1000r/min afterwards.
10. the preparation method of fluorine-containing damping paint according to claim 8, which is characterized in that in step sl, described swollen
Swollen graphite and the mica are mixed with the mass ratio of 1:2~6.
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| CN109054538B (en) | 2020-08-25 |
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