CN108192433A - A kind of fluorocarbon modified powdery paints used for aluminum surface and preparation method thereof - Google Patents
A kind of fluorocarbon modified powdery paints used for aluminum surface and preparation method thereof Download PDFInfo
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- CN108192433A CN108192433A CN201711403659.1A CN201711403659A CN108192433A CN 108192433 A CN108192433 A CN 108192433A CN 201711403659 A CN201711403659 A CN 201711403659A CN 108192433 A CN108192433 A CN 108192433A
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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
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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
- C09D5/03—Powdery paints
- C09D5/031—Powdery paints characterised by particle size or shape
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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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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Abstract
The invention discloses a kind of fluorocarbon modified powdery paints used for aluminum surface and preparation method thereof, it is respectively using two kinds of curing systems of fluorine carbon and acrylic resin as base-material, it is equipped with the materials such as levelling agent, toughener, dispersant, coupling agent and inorganic ceramic pigment and one-component powdery paints is made, then by weight 1:9~9:The fluorocarbon modified powdery paints is made by hot adhesion mixing new process in the powder of the two components by 1.Preparation method of the present invention is not only environmentally protective, safety is cheap, but also can significantly increase the fluorine carbon system content migrated to coating surface, has given play to the advantage of fluorine carbon system to the maximum extent.Therefore, the weatherability and chemical resistance that fluorocarbon modified powdery paints of the invention not only keeps fluorocarbon coating excellent, moreover it is possible to enhance the adhesive force of film and improve powder store stability, and do not influence the decorative effect of powdery paints, comprehensive advantage of lower cost.
Description
Technical field
The invention belongs to art of powder coatings, and in particular to a kind of fluorocarbon modified powdery paints used for aluminum surface and its preparation side
Method.
Background technology
Existing market major part fluorocarbon coating belongs to solvent based coating, and production and coating process can give off largely
Volatile organic matter, and being gradually improved with environmentally friendly laws and regulations, the environmental requirement of coating is also increasingly stringenter, and coating is in life
Production and coating process reduce VOC emission amount to the greatest extent and seem extremely important, but are used as solvent type fluorocarbon coating, improve in any case,
There will be VOC emission in varying degrees.Powdery paints is as the environmental type coating without VOC, particularly thermosetting fluoro
Fluoropolymer Powder Coatings, the manufacturing and coating process and ordinary powder coating are substantially similar, therefore will be increasingly becoming coating row
Industry first develops one of direction.
The pure fluorocarbon powder paint weatherability of thermosetting property is extremely excellent, and outdoor application is 20-30.It is however domestic at present
Technology it is still immature, adhesive force, impact resistance and color stuffing dispersibility etc. are mainly reflected in, along with its is high
Material cost so that the pure fluorocarbon powder paint of thermosetting property promotes and applies on the market makes slow progress.
Invention content
Present invention aims to overcome that existing thermosetting fluorocarbon powder paint poor adhesive force, poor impact resistance and color stuffing dispersion
Property the problems such as difference, providing a kind of has excellent weatherability, the chemical resistance of protrusion, good adhesive force and impact resistance
Etc. mechanical performances, and do not influence decorative fluorocarbon modified powdery paints used for aluminum surface and preparation method thereof.
By following A, B component by weight 1:9~9:1 is made by hot adhesion hybrid technique, wherein, the component A packet
Include the raw material composition of following weight percent：
The sum of above-mentioned weight percentages are 100%；
The raw material that the B component includes following weight percent form：
The sum of above-mentioned weight percentages are 100%.
Preferably, the thermosetting fluoro carbon resin includes alkyl vinyl ether such as cyclohexyl vinyl ether, hydroxyl butylethylene
One kind or alkyl vinyl base ester such as vinyl acetate, caproic acid second in base ether, ethyl vinyl ether, glycidyl vinyl ether
A kind of copolymer of and fluoroolefins in enester, new vinyl acetate acid, new vinyl pelargonate ester, new certain herbaceous plants with big flowers vinyl acetate.
Preferably, the fluoroolefins includes chlorotrifluoroethylene or tetrafluoroethene.
Preferably, the isocyanate curing agent includes the trimethylolpropane diisocyanate addition product of closing, closing
Type isophorone diisocyanate trimer, hexamethylene diisocyanate addition product, Trimethylmethanaminium chloride Tetramine chloride, contracting diketone two are different
One kind in cyanate addition product；The coupling agent includes titanate coupling agent, zirconium ester coupling agent, aluminate coupling agent, double
It is one or more in metal coupling agent, rare-earth coupling agent etc..
Preferably, the inorganic ceramic pigment includes one in cobalt blue, cobalt green, cobalt black, copper-chrome black, titanium yellow, cadmium turn to red because of sun burn
Kind is a variety of.
Preferably, the acrylic resin is thermosetting resin or thermoplastic resin；Wherein described thermosetting resin includes
It is one or more in epoxy acrylic, hydroxy acrylic acid, carboxyl acrylic resin etc..
Preferably, the polybasic carboxylic acid or multi-anhydride include adipic acid, sebacic acid, dodecanedioic acid, tetracosandioic acid,
It is one or more in octadecane diacid etc..
In addition, the present invention also provides a kind of preparation method of above-mentioned fluorocarbon modified powdery paints used for aluminum surface, including following
Step：
(1) raw material of the A, B component formula are pre-mixed respectively by its corresponding weight percent；
(2) raw material of A after premixing, B component are subjected to melting mixing respectively；
(3) A, B component materials result after squeezing out, and carry out respectively after the cooling period broken and finely pulverized；
(4) A, B component powder after will be finely pulverized carry out sizing screening respectively；
(5) by after sizing screening A, B component powder is according to weight ratio 1:9~9:1 is made by hot adhesion hybrid technique
The fluorocarbon modified powdery paints.
Preferably, the hot adhesion hybrid technique of the step (5), including A, B component powder are pressed the weight percent
It adds in mixing arrangement, adjusts the temperature to sticking temperature, keep the temperature 3~10 minutes, and be mixed, packaging is after cooling
Obtain the fluorocarbon modified powdery paints；The sticking temperature and the powdery paints weight percent that is added in when glass transition temperature Tg
It is related.
Preferably, the mixing arrangement includes charging mixer, ball mill or homogenizer.
Compared with prior art, the present invention a kind of design principle and major advantage of fluorocarbon modified powdery paints used for aluminum surface
It is as follows：
(1) fluorocarbon modified powdery paints of the invention is according to the compatible thermodynamics of blend and polymer self demixing skill
Art：Coating base-material different in film forming procedure is applied using the difference in surface tension or other physical properties so as to generate
The variation of base concentration of the layer from phase surface to boundary.I.e. according to fluorocarbon powder paint and two kinds of systems of acrylic acid powder coatings
Between compatibility, melt surface tension and relative molecular mass, polymer TgDeng difference so that in the molten state
Fluorocarbon powder paint system be more likely to coating surface migrate, be gathered in the surface contacted with air, reach very excellent
Weather-proof effect.
(2) new process that A used herein, B component hot adhesion mix, different from A, B component raw material are squeezed jointly
The technique for going out powder processed is more different from A, the dry-mixed technique of B component powder routinely, can not only full and uniform mixing fluorine carbon,
The two different powder systems of acrylic acid, and can make that there is certain binding force between two kinds of system powder, it can enhance back
Receive the spraying stability of powder；Most of all, compared with above-mentioned other two kinds of common process, hot adhesion hybrid technique can be significantly
The adhesive force and ageing-resistant performance of coating are improved, while can also significantly reduce cost.
(3) dispersant of the silane modified metal oxides of the present invention as powder coating formulation, on the one hand may be used
To protect powder particle that agglomeration does not occur, reduce causes powder to be bonded by reasons such as Van der Waals force, the moisture absorption, electrostatic or particle frictions
Probability, improve the bin stability of powdery paints；On the other hand it due to its large specific surface area, active height etc., is allowed to hold
Bonding action easily occurs with the oxyphie group in system, intermolecular bonding force is improved, so as to promote the flexility of coating.
(4) coupling agent of the present invention can obviously improve organic matter (such as resin, auxiliary agent) to inorganic matter as (filled out
Material, pigment etc.) storeroom interface interaction, increase a variety of materials between adhesive strength, you can to improve the mechanicalness of coating
Energy and appearance, wherein coupling agent are particularly evident to the influence for containing the powder systems of big oil absorption pigment.
(5) inorganic ceramic pigment ratio common inorganic pigment of the present invention has the weatherability, fast light of higher level
Property and heat resistance, for the fluorocarbon powder paint of weather resistance, the use of weather-proof, the light resistance grade of pigment must be highest
, it otherwise can influence the weatherability of coating.Simultaneously because present invention uses coupling agents so that using inorganic ceramic pigment not
Influence the mechanical performance and appearance of coating.
(6) fluorocarbon modified powdery paints of the invention is using fluorocarbon resin and acrylic resin dual cure systems as base-material,
On the basis of retaining the superpower weatherability of fluorine carbon system, overcome that thermosetting fluoro carbon dust adhesive force, impact resistance are bad and face is filled out
The problems such as expecting bad dispersibility also improves the bin stability of powder, and comprehensive advantage of lower cost, is meeting customer need
On the basis of, it is easier to received by user.
(7) present invention is suitable for the production of existing powdery paints production equipment, and operability is strong.
Description of the drawings
Fig. 1 is the flow chart of the preparation method of the fluorocarbon modified powdery paints used for aluminum surface of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings 1 and embodiment the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.The method is conventional method unless otherwise instructed, and the raw material unless otherwise instructed can be from open business way
Diameter and obtain.Following embodiment is in parts by mass.
A kind of fluorocarbon modified powdery paints used for aluminum surface, it is characterised in that：By following A, B component by weight 1:9~9:1
It is made by hot adhesion hybrid technique,
The raw material that the component A includes following weight percent form：
The sum of above-mentioned weight percentages are 100%；
The raw material that the B component includes following weight percent form：
The sum of above-mentioned weight percentages are 100%.
The thermosetting fluoro carbon resin includes alkyl vinyl ether such as cyclohexyl vinyl ether, hydroxy butyl vinyl ether, second
One kind or alkyl vinyl base ester in base vinyl ethers, glycidyl vinyl ether such as vinyl acetate, vinyl caproate, new
A kind of copolymer of and fluoroolefins in vinyl valerate, new vinyl pelargonate ester, new certain herbaceous plants with big flowers vinyl acetate.The thermosetting fluoro carbon tree
The copolymer of fat optimizing alkyl vinyl ethers and chlorotrifluoroethylene is known as Lumiflon series polymers, SRF series including commercially available
One or more in polymer, the hydroxyl value of the Lumiflon series polymers is 50 ± 5mgKOH/g, and glass transition temperature is
50-54℃。
The fluoroolefins includes chlorotrifluoroethylene or tetrafluoroethene.
The isocyanate curing agent includes the trimethylolpropane diisocyanate addition product of closing, the different Fo Er of enclosed type
Ketone diisocyanate trimer, hexamethylene diisocyanate addition product, Trimethylmethanaminium chloride Tetramine chloride, contracting diisocyanates add
Into one kind in object, the preferred caprolactam of isocyanate curing agent closes isophorone diisocyanate, and NCO content is
14.8~15.7%.
The coupling agent includes titanate coupling agent, zirconium ester coupling agent, aluminate coupling agent, bimetallic coupling agent, dilute
It is one or more in native coupling agent etc., the preferred silane coupling agent of coupling agent, the wherein preferred amino of non-hydrolytic group, isocyanide
One or more in perester radical, epoxy group, the grain size of the coupling agent is generally 15~25 μm.
The dispersant be silane modified metal oxides, 120~140m of specific surface area2/ g is heated to quality at 105 DEG C
Loss 0.5~2.0%.
The filler include britesorb such as talcum powder, meta-aluminate such as kaolin, mica powder etc., the filler preferably without
Machine sulfate such as barite or carbonate such as calcium carbonate etc.；
The inorganic ceramic pigment is the calcining for being subjected to different temperatures temperature such as between 600~1300 DEG C, has high stable
Property 5 grades of such as 8 grades of light resistance and weatherability nonferrous metal oxides or insoluble metallic salt.
The inorganic ceramic pigment includes one kind or more in cobalt blue, cobalt green, cobalt black, copper-chrome black, titanium yellow, cadmium turn to red because of sun burn etc.
Kind.
The toughener is the acrylate modified polymer of rubber silicon cladding, and the toughener preferably comprises hydroxyl, carboxylic
The toughener of one or more terminal functionalities in base, amino, with smaller oil absorption, grain size is 0.5~5.0 μ
m。
Other described auxiliary agents include degasser, antioxidant, scratching resistant, curing accelerator, anti-yellowing agent, growth agent, resist
Electrostatic agent, light stabilizer, ultraviolet absorber, antiseptic, help levelling agent, gloss improve additive and one kind in anticaking agent or
It is a variety of.The degasser is preferably such as benzoin；The preferred dibutyl tin laurate of the curing accelerator, stannous octoate.It is described its
His auxiliary agent can significantly improve certain performances of powder or coating.
The acrylic resin is thermosetting resin or thermoplastic resin；Wherein described thermosetting resin includes propylene oxide
It is one or more in acid, hydroxy acrylic acid, carboxyl acrylic resin etc..
The polybasic carboxylic acid or multi-anhydride include adipic acid, sebacic acid, dodecanedioic acid, tetracosandioic acid, octadecane
It is one or more in diacid etc..
The preparation method of the fluorocarbon modified powdery paints used for aluminum surface, flow as shown in Figure 1, including following step
Suddenly：
(1) raw material of the A, B component formula are pre-mixed respectively by its corresponding weight percent；
(2) raw material of A after premixing, B component are subjected to melting mixing respectively；
(3) A, B component materials result after squeezing out, and carry out respectively after the cooling period broken and finely pulverized；
(4) A, B component powder after will be finely pulverized carry out sizing screening respectively；
(5) by after sizing screening A, B component powder is according to weight ratio 1:9~9:1 is made by hot adhesion hybrid technique
The fluorocarbon modified powdery paints.
The hot adhesion hybrid technique of the step (5), including A, B component powder are added in mixing by the weight percent
In device, sticking temperature is adjusted the temperature to, 3~10 minutes is kept the temperature, and be mixed, stirs evenly, pack after cooling
Up to the fluorocarbon modified powdery paints；The sticking temperature and the powdery paints weight percent that is added in when glass transition temperature
TgIt is related.
The mixing arrangement includes charging mixer, ball mill or homogenizer.
Embodiment 1
It is prepared according to the following steps fluorocarbon modified powdery paints sample powder 1~6 used for aluminum surface：
Following A, B component raw material are pre-mixed by the first step respectively by the weight percent,
| Component A Components Name | Weight % | B component Components Name | Weight % |
| Thermosetting fluoro carbon resin | 64.0 | Acrylic resin | 62.0 |
| Isocyanate curing agent | 16.0 | Polybasic carboxylic acid (acid anhydrides) | 14.6 |
| Levelling agent | 1.2 | Levelling agent | 1.0 |
| Toughener | 0.3 | Dispersing aid | 0.3 |
| Dispersant | 0.3 | Other auxiliary agents | 1.7 |
| Coupling agent | 1.0 | Filler | 8.4 |
| Other auxiliary agents | 1.5 | Inorganic ceramic pigment | 12.0 |
| Filler | 3.7 | ||
| Inorganic ceramic pigment | 12.0 |
Second step by A, the B component raw material after premixing, carries out melting mixing extrusion with double screw extruder respectively,
Wherein, the temperature in extruder I areas is 110 DEG C, and extruder II areas temperature is 110 DEG C, wherein, Ith area of extruder is melted for extruder
Mixing section, IIth area of extruder are extruder feeding section；
Third walks, by the A of extrusion, B component materials result, cooling, it is broken after, respectively with ACM mills to broken material
Carry out it is finely pulverized to powder diameter be 10~100 microns；
Powdery paints is sized to grain size 20 by the rotary screen of 180 mesh screens of finely pulverized powdery paints by the 4th step
~80 microns, powdery paints sample powder A, B is respectively prepared；
5th step, by A, B component powder according to weight ratio 3:7、5:5 and 7:3 are utilized respectively homogenizer is in temperature
Hot adhesion mixes 6 minutes at 62~65 DEG C, and fluorocarbon modified powdery paints sample powder 1~3 is obtained after mixing.
6th step, by A, B component powder according to weight ratio 3:7、5:5 and 7:3 carry out dry-mixing respectively, are obtained after mixing
Fluorocarbon modified powdery paints sample powder 4~6.
Embodiment 2
It is prepared according to the following steps fluorocarbon modified powdery paints sample powder 7~9：
The raw material of following weight percent are pre-mixed by the first step,
| Sample meal component title | 7 weight % of sample powder | 8 weight % of sample powder | 9 weight % of sample powder |
| Thermosetting fluoro carbon resin | 44.8 | 32.0 | 19.2 |
| Isocyanate curing agent | 11.2 | 8.0 | 4.8 |
| Acrylic resin | 19.4 | 32.4 | 45.4 |
| Polybasic carboxylic acid (acid anhydrides) | 4.6 | 7.6 | 10.6 |
| Levelling agent | 1.2 | 1.2 | 1.2 |
| Toughener | 0.3 | 0.3 | 0.3 |
| Dispersant | 0.3 | 0.3 | 0.3 |
| Coupling agent | 1.0 | 1.0 | 1.0 |
| Other auxiliary agents | 1.5 | 1.5 | 1.5 |
| Filler | 3.7 | 3.7 | 3.7 |
| Inorganic ceramic pigment | 12.0 | 12.0 | 12.0 |
By the raw material after premixing, melting mixing extrusion is carried out with double screw extruder for second step, wherein, extruder I
The temperature in area is 110 DEG C, and extruder II areas temperature is 110 DEG C, wherein, Ith area of extruder is extruder melting mixing section, described to squeeze
IIth areas of Chu Ji are extruder feeding section；
Third walks, and after the materials result of extrusion, cooling, crushing, broken material is carried out with ACM mills finely pulverized
It it is 10~100 microns to powder diameter；
Powdery paints is sized to grain size 20 by the rotary screen of 180 mesh screens of finely pulverized powdery paints by the 4th step
~80 microns, purely a modified powdery paints sample powder 7~9 is made.
Sample powder A described made from embodiment 1 to embodiment 2 and sample powder 1~9 are pressed into following coating process applications respectively：With
High-pressure electrostatic method or fluidized bed process are coated on treated aluminium sheet, and coating layer thickness is 50~70 μm, using hot baking box
Cured within 15 minutes at 200 DEG C, obtain corresponding coating model, respectively to sample powder A described made from Examples 1 and 2 and
The coating for the corresponding coating model that sample powder 1~9 obtains carries out relevant performance test, embodiment 1,2 obtained sample powder coating samples
Plate is tested by relevant criterion (GSB AL631), and obtaining result can be such as following table：
Table 1
Table 2
Table 3
By above-described embodiment comparison it is found that 1~3 application of sample powder is made in the hot adhesion hybrid technique that the present invention uses
Coating has better appearance of coat and more excellent resistance to than the coating that 4~6 applications of sample powder are made using simple dry-mixing technique
The performances such as time property；Sample is made using hot adhesion hybrid technique compared with using the coating of 7~9 applications of sample powder of coextrusion processes
The properties of coating of powder is preferable.Importantly, in the case that fluorine carbon content has certain ensure in powder systems, this hair
The hot adhesion hybrid technique of bright use be made fluorocarbon modified powder coating have it is suitable with the coating of pure fluorine carbon dust sample powder A institutes applications
Weather-proof level, and with the performances such as better coating planarization and adhesive force.
Embodiment 3
Fluorocarbon modified powder-like powder is prepared using following C, D component raw material according to the method for embodiment 1, including general
Rear C, D component powder is made according to weight ratio 2:8、5:5 and 8:2 carry out hot adhesion mixing respectively, sample powder 10~12 are made, specifically
Formula for raw stock is as follows：
According to coating process used in embodiment 2, sample powder 10~12 made from embodiment 3 is subjected to application, will be made
The coating model of sample powder application is tested by relevant criterion (GSB AL631), and obtaining result can be such as following table：
Table 4
Embodiment 4
Fluorocarbon modified powder-like powder is prepared using following E, F component part raw material according to the method for embodiment 1, including
Rear E, F component powder will be made according to weight ratio 1:9、5:5 and 9:1 carries out hot adhesion mixing respectively, and sample powder 13~15, tool is made
Body formula for raw stock is as follows：
Sample powder 13~15 obtained by used coating process application this example that sample powder is made according to embodiment 2, is made sample powder
Coating model is tested by relevant criterion (GSB AL631), and obtaining result can be such as following table：
Table 5
Embodiment 5
Fluorocarbon modified powder-like powder is prepared using following G, H component part raw material according to the method for embodiment 1, including
Rear G, H component powder will be made according to weight ratio 4:6、5:5 and 6:4 carry out hot adhesion mixing respectively, and sample powder 16~18, tool is made
Body formula for raw stock is as follows：
Sample powder 16~18 obtained by used coating process application this example that sample powder is made according to embodiment 2, is made sample powder
Coating model is tested by relevant criterion (GSB AL631), and obtaining result can be such as following table：
Table 6
By the comparison of embodiment 3~5 it is found that the present invention is led to using sample powder made from the raw material of different weight percentage
It handles to obtain corresponding sample powder 10 to carry out sample powder that hot adhesion hybrid technique is handled through application after weight ratio from low to high
The coating of~18 applications is tested by relevant criterion (GSB AL631), it is known that, use the raw material of different weight percentage
The application coating of the final sample powder 10~18 obtained of hot adhesion hybrid technique is carried out by weight ratio from low to high, be respectively provided with compared with
The performances such as good appearance of coat and excellent weather resistance；Meanwhile in system in the case that fluorine carbon content has certain ensure, the present invention
The coating of application has the comparable weather-proof level of coating with pure fluorine carbon dust sample powder A institutes applications, and is put down with good coating
The performances such as whole property and adhesive force；That is, the formula and preparation method of the present invention have preferable universality；Finally, the present invention is made
Standby fluorocarbon modified powdery paints overcomes the attachment of thermosetting fluoro carbon dust on the basis of the superpower weatherability of fluorine carbon system is retained
Power, impact resistance be bad and the problems such as color stuffing bad dispersibility, improves the bin stability of powder, also reduce it is comprehensive into
This, on the basis of meeting customer need, it is easier to be received by user.
It should be noted that embodiment described above is only used for explaining the present invention, do not form to any of the present invention
Limitation.If the spirit and scope of the present invention are not departed to the various changes or modifications of the present invention, if these modification and variations
Belong within the scope of the claim and equivalent technologies of the present invention, then the present invention is also intended to comprising these modification and variations.
Claims (10)
1. a kind of fluorocarbon modified powdery paints used for aluminum surface, it is characterised in that：By following A, B component by weight 1:9~9:1 is logical
Hot adhesion hybrid technique is crossed to be made,
The raw material that the component A includes following weight percent form：
The raw material that the B component includes following weight percent form：
2. fluorocarbon modified powdery paints used for aluminum surface according to claim 1, it is characterised in that：The thermosetting fluoro carbon tree
Fat includes alkyl vinyl ether such as cyclohexyl vinyl ether, hydroxy butyl vinyl ether, ethyl vinyl ether, glycidyl vinyl
One kind or alkyl vinyl base ester in base ether for example vinyl acetate, vinyl caproate, new vinyl acetate acid, new vinyl pelargonate ester,
A kind of copolymer with fluoroolefins in new certain herbaceous plants with big flowers vinyl acetate.
3. one kind fluorocarbon modified powdery paints used for aluminum surface according to claim 2, it is characterised in that：The fluoroolefins packet
Include chlorotrifluoroethylene or tetrafluoroethene.
4. fluorocarbon modified powdery paints used for aluminum surface according to claim 1, it is characterised in that：The cured with isocyanates
Agent includes the trimethylolpropane diisocyanate addition product, enclosed type isophorone diisocyanate trimer, six Asias of closing
One kind in methyl diisocyanate addition product, Trimethylmethanaminium chloride Tetramine chloride, contracting diisocyanates addition product；The coupling agent
Including one kind in titanate coupling agent, zirconium ester coupling agent, aluminate coupling agent, bimetallic coupling agent, rare-earth coupling agent etc.
It is or a variety of.
5. fluorocarbon modified powdery paints used for aluminum surface according to claim 1, it is characterised in that：The inorganic ceramic pigment
Including one or more in cobalt blue, cobalt green, cobalt black, copper-chrome black, titanium yellow, cadmium turn to red because of sun burn etc..
6. fluorocarbon modified powdery paints used for aluminum surface according to claim 1, it is characterised in that：The acrylic resin is
Thermosetting resin or thermoplastic resin；Wherein described thermosetting resin includes epoxy acrylic, hydroxy acrylic acid, carboxy acrylic
It is one or more in resin etc..
7. fluorocarbon modified powdery paints used for aluminum surface according to claim 1, it is characterised in that：The polybasic carboxylic acid is more
First acid anhydrides includes one or more in adipic acid, sebacic acid, dodecanedioic acid, tetracosandioic acid, octadecane diacid etc..
8. a kind of preparation method according to claim 1~7 any one of them fluorocarbon modified powdery paints used for aluminum surface, special
Sign is, includes the following steps：
(1) raw material of the A, B component formula are pre-mixed respectively by its corresponding weight percent；
(2) raw material of A after premixing, B component are subjected to melting mixing respectively；
(3) A, B component materials result after squeezing out, and carry out respectively after the cooling period broken and finely pulverized；
(4) A, B component powder after will be finely pulverized carry out sizing screening respectively；
(5) by after sizing screening A, B component powder is according to weight ratio 1:9~9:1 is made described by hot adhesion hybrid technique
Fluorocarbon modified powdery paints.
9. preparation method according to claim 8, it is characterised in that：The hot adhesion hybrid technique of the step (5), including
A, B component powder are added in by the weight percent in mixing arrangement, adjust the temperature to sticking temperature, keeps the temperature 3~10 minutes,
And be mixed, it is packed after cooling up to the fluorocarbon modified powdery paints；The sticking temperature and the powder added in
Last coating weight percentage when glass transition temperature TgIt is related.
10. preparation method according to claim 9, it is characterised in that：The mixing arrangement is charging mixer, ball mill
Or homogenizer.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791182A (en) * | 2019-11-08 | 2020-02-14 | 甘肃西部邦奇装饰材料科技有限公司 | Heat-preservation and heat-insulation powder coating for aluminum alloy doors and windows and preparation method thereof |
| CN111040525A (en) * | 2019-12-19 | 2020-04-21 | 广东西敦千江粉漆科学研究有限公司 | PVDF metal powder coating for metal surface and preparation method thereof |
| CN111154351A (en) * | 2019-12-26 | 2020-05-15 | 中航百慕新材料技术工程股份有限公司 | Self-layering FEVE fluorocarbon coating and preparation method thereof |
| CN114011672A (en) * | 2021-11-23 | 2022-02-08 | 上海金泛斯标识有限公司 | Aluminum profile spraying process |
| CN114085574A (en) * | 2021-11-22 | 2022-02-25 | 擎天材料科技有限公司 | Powder coating and preparation method and application thereof |
| CN116606577A (en) * | 2023-04-26 | 2023-08-18 | 广东美涂士建材股份有限公司 | Easily-scrubbed waterproof stone-like coating and preparation method thereof |
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| CN103194140A (en) * | 2013-03-29 | 2013-07-10 | 宁波南海化学有限公司 | Self-cleaning super-weather-proof powder paint and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103194140A (en) * | 2013-03-29 | 2013-07-10 | 宁波南海化学有限公司 | Self-cleaning super-weather-proof powder paint and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791182A (en) * | 2019-11-08 | 2020-02-14 | 甘肃西部邦奇装饰材料科技有限公司 | Heat-preservation and heat-insulation powder coating for aluminum alloy doors and windows and preparation method thereof |
| CN111040525A (en) * | 2019-12-19 | 2020-04-21 | 广东西敦千江粉漆科学研究有限公司 | PVDF metal powder coating for metal surface and preparation method thereof |
| CN111040525B (en) * | 2019-12-19 | 2021-12-21 | 广东西敦千江粉漆科学研究有限公司 | PVDF metal powder coating for metal surface and preparation method thereof |
| CN111154351A (en) * | 2019-12-26 | 2020-05-15 | 中航百慕新材料技术工程股份有限公司 | Self-layering FEVE fluorocarbon coating and preparation method thereof |
| CN111154351B (en) * | 2019-12-26 | 2021-10-15 | 中航百慕新材料技术工程股份有限公司 | Self-layering FEVE fluorocarbon coating and preparation method thereof |
| CN114085574A (en) * | 2021-11-22 | 2022-02-25 | 擎天材料科技有限公司 | Powder coating and preparation method and application thereof |
| CN114011672A (en) * | 2021-11-23 | 2022-02-08 | 上海金泛斯标识有限公司 | Aluminum profile spraying process |
| CN116606577A (en) * | 2023-04-26 | 2023-08-18 | 广东美涂士建材股份有限公司 | Easily-scrubbed waterproof stone-like coating and preparation method thereof |
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