CN105419609A - Extra-weather-resistant matt fluorocarbon-polyester composite powder coating and preparation method thereof - Google Patents
Extra-weather-resistant matt fluorocarbon-polyester composite powder coating and preparation method thereof Download PDFInfo
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- CN105419609A CN105419609A CN201510756267.8A CN201510756267A CN105419609A CN 105419609 A CN105419609 A CN 105419609A CN 201510756267 A CN201510756267 A CN 201510756267A CN 105419609 A CN105419609 A CN 105419609A
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Abstract
The invention discloses an extra-weather-resistant matt fluorocarbon-polyester composite powder coating and a preparation method thereof. The powder coating is prepared from a component A and a component B in a ratio of 1:1-1:1.5 by means of dry mixing and grinding, wherein each of the component A and the component B contains a fluorocarbon resin and polyester resin dual-curing system. The extra-weather-resistant matt fluorocarbon-polyester composite powder coating has the advantages of simple technological formula, extra weather resistance, resistance to acid and alkali, capabilities of overcoming the shortcomings of poor adhesion and poor pigment filler wettability of a pure fluorocarbon powder coating and showing extra weather resistance by curing coats, long outdoor service life, low material use and maintenance integrated cost and the like.
Description
Technical field
The present invention relates to a kind of powder coating, be specifically related to super weather-proof matt powder coating of a kind of fluorine carbon-polyester complex type and preparation method thereof.
Background technology
Powder coating is a kind of novel not containing solvent 100% solid powdery coating, has solvent-free, pollution-free, recyclable, environmental protection, the saving energy and resource, reduces labor intensity and film physical strength high.The super weather-resistant coating kind that fluorocarbon powder paint is generally acknowledged outward as Now Domestic, its outdoor use properties has obtained to be verified widely.But the congenital defect of pure fluorine carbon system powder coating in sticking power, color stuffing wettability etc., add its high material cost, the powder coating of pure fluorine carbon system is made slow progress in the application of market.
Summary of the invention
An object of the present invention is to provide a kind of and has super weather-proof, the fluorine carbon-polyester complex type powder coating with better matt effect, it is obtained that this powder coating is dry mixed pulverizing with first, the component B containing fluorocarbon resin and vibrin dual cure systems in the ratio of 1:1 ~ 1:1.5, has the advantages such as technical recipe is simple, super-weathering resistance energy, acid-fast alkali-proof performance.
Two of object of the present invention is the preparation method providing above-mentioned powder coating.
First object of the present invention is achieved through the following technical solutions: the super weather-proof matt powder coating of a kind of fluorine carbon-polyester complex type, comprises the first component by weight 1:1 ~ 1:1.5 compound and component B, wherein,
Described first component comprises the component of following weight:
Described component B comprises the component of following weight:
First component of the present invention and component B by 1:1 ~ 1:1.5 weight ratio compound obtained by its coating of powder coating there is matt effect, coatingsurface glossiness (60 °) is 20 ~ 50GU; When first component and component B press 1:1 ~ 1:1.2 weight ratio compound tense, its powder coating coatingsurface glossiness (60 °) is 30 ~ 40GU, and matt effect is better; When first component and component B press 1:1 weight ratio compound tense, its powder coating coatingsurface glossiness (60 °) is 25 ~ 35GU, and matt effect is best and coating sense of touch is fine and smooth.
Fluoro-resin of the present invention is trifluorochloroethylene and vinyl ether co-polymer class fluorine resin (FEVE), and its solid Oil repellent is 20 ~ 25%, and hydroxyl value is 30 ~ 55mgKOH/g, and hydroxyl value is preferably 30 ~ 40mgKOH/g.
Isocyanate resin of the present invention is dead front type isophorone diisocyanate, isocyanate group equivalent between 250 ~ 350g/eq, Tg between 45 ~ 80 DEG C, preferably 65 ~ 80 DEG C; Dead front type isophorone diisocyanate comprises one or both of self-styled closed form or additional closed formulation.
Saturated carboxyl polyester resin A of the present invention and saturated carboxyl polyester resin B is the condensation product of polycarboxylic acid and polyvalent alcohol, wherein, the acid number of saturated carboxyl polyester resin A is 50 ~ 57mgKOH/g, and the acid number of saturated carboxyl polyester resin B is 20 ~ 27mgKOH/g; Different the making of acid number of the saturated carboxyl polyester resin that first component is contained with component B has matt effect by the powder coating coating of first component and component B compound, then is equipped with the proportioning of adjustment first component and component B thus obtains the good and stable powder coating of matt effect.
Described TGIC is universal triglycidyl isocyanurate.
Described filler is one or more in titanium dioxide, barium sulfate, mica powder, silicon powder.
Described flow agent is one or both in silicon-dioxide adsorptive type esters of acrylic acid flow agent or vibrin loading type esters of acrylic acid flow agent.
Described pigment is commercial inorganic ceramic pigment.
Second object of the present invention is realized by following technical measures: the preparation method of the super weather-proof matt powder coating of a kind of fluorine carbon-polyester complex type comprises the following steps:
A, preparation first component sheet material:
A () takes fluoro-resin, isocyanate resin, saturated carboxyl polyester resin A, filler, flow agent, st-yrax, pigment by proportioning, be placed in compounding jar, and fully mixing is also broken;
B the material after () fragmentation enters in forcing machine and melt extrudes;
(c) extrude after material through compressing tablet, cooling, simple crushing slabbing material.
B, prepare component B sheet material:
A () takes fluoro-resin, isocyanate resin, saturated carboxyl polyester resin B, filler, flow agent, st-yrax, pigment by proportioning, be placed in compounding jar, and fully mixing is also broken;
B the material after () fragmentation enters in forcing machine and melt extrudes;
(c) extrude after material through compressing tablet, cooling, simple crushing slabbing material.
C, Jiang Jia, component B sheet material, by weight 1:1 ~ 1:1.5 mixing, then pulverize through pulverizing mill, sieve and pack and obtain powder coating.
In above-mentioned preparation method, described preparation first component sheet material and each component in the step (a) prepared in component B sheet material mix and the broken time is 1 ~ 30 minute.
Described preparation first component sheet material is 95 ~ 130 DEG C with the extrusion temperature in the step (b) prepared in component B sheet material, and described forcing machine adopts two or single screw extrusion machine.
Diameter of particle after described step C screening is 1 ~ 100 micron.
The coating process of the super weather-proof matt powder coating of fluorine carbon-polyester complex type of the present invention is: be coated on treated base material by high pressure static electricity method or fluidized bed process, solidification value is 190 ~ 220 DEG C, set time is 10 ~ 20 minutes, and hot baking box can be adopted to be cured.
Beneficial effect of the present invention is:
1, the super weather-proof matt powder coating of fluorine carbon-polyester complex type of the present invention is with the first containing fluorocarbon resin and vibrin dual cure systems, component B is dry mixed to pulverize in the ratio of 1:1 ~ 1:1.5 and obtains, possesses the super-weathering resistance energy of fluorine carbon system on the one hand, there is good mechanical properties and the pattern diversity of normal polyester system on the other hand, two kinds of systems respectively get the chief, complementation is excellent mutually, overcome pure fluorocarbon powder paint poor adhesive force, the drawback of color stuffing wettability difference, solidified coating display excess of export weathering characteristics, can be used for outdoor environment, be applied to aluminum veneer, aluminium section bar, geavy salt area electric appliance casing etc., outdoor long service life, and the present invention adopts vibrin compound fluorocarbon resin, preparation method simple, reduces materials'use and safeguards comprehensive cost,
2, the super weather-proof matt powder coating of fluorine carbon-polyester complex type of the present invention has first component and the component B of different acid number saturated carboxyl polyester resin by compound, scientific matching is carried out to first component and component B simultaneously, thus obtain the powder coating that coating has matt effect, coatingsurface glossiness (60 °) is 20 ~ 50GU, and the base material outward appearance sense of touch exquisiteness, the illumination that are coated with powder coating of the present invention are soft, not dazzling, more attractive in appearance.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated.
Embodiment 1
The super weather-proof matt powder coating of a kind of fluorine carbon-polyester complex type, comprises first component and component B, and concrete formula is as follows:
The present embodiment preparation method is as follows:
A () takes each component by first, component B proportioning respectively, be placed in compounding jar respectively, fully mixing also broken 5 minutes;
B first, the component B material after () fragmentation enters two or single screw extrusion machine respectively and melt extrudes; Forcing machine heating and temperature control is at 110 DEG C;
(c) extrude after first, component B material respectively through compressing tablet, cooling, simple crushing slabbing material;
D the ratio of first, component B sheet material in 1:1 mixes by (), be then ground into through pulverizing mill the powder that particle diameter (equivalent grain size D50) is 40 ~ 50 microns, and then after screening, namely packaging obtains powder coating sample powder 1.
Embodiment 2
The super weather-proof matt powder coating of a kind of fluorine carbon-polyester complex type, comprises the first component by weight 1:1 compound and component B, and concrete formula is as follows:
The present embodiment preparation method, with embodiment 1, obtains powder coating sample powder 2.
Embodiment 3
The super weather-proof matt powder coating of a kind of fluorine carbon-polyester complex type, comprises the first component by weight 1:1 compound and component B, and concrete formula is as follows:
The present embodiment preparation method, with embodiment 1, obtains powder coating sample powder 3.
Embodiment 4
The super weather-proof matt powder coating of a kind of fluorine carbon-polyester complex type, comprises the first component by weight 1:1 compound and component B, and concrete formula is as follows:
The present embodiment preparation method, with embodiment 1, obtains powder coating sample powder 4.
Embodiment 5
The super weather-proof matt powder coating of a kind of fluorine carbon-polyester complex type, comprises the first component by weight 1:1 compound and component B, and concrete formula is as follows:
The present embodiment preparation method, with embodiment 1, obtains powder coating sample powder 5.
By sample powder 1 ~ 5 obtained for embodiment 1 to embodiment 5 respectively by following coating process application: be coated on treated aluminium sheet by high pressure static electricity method or fluidized bed process, coat-thickness is 60 ~ 90 μm, within 15 minutes, be cured at adopting hot baking box 200 DEG C, obtain coating model, respectively to the performance test that the coating of the coating model of embodiment 1 to embodiment 5 is correlated with, the coating model test result of example 1 to embodiment 5 can with reference to following table:
As seen from the above table, the super weather-proof matt powder coating coating matt effect of fluorine carbon-polyester complex type of the present invention is good, sticking power good, weathering resistance is good, and has excellent resistance to acids and bases and fume resistance concurrently.
The above; be only preferred embodiment of the present invention; not in order to limit the scope of the invention, every above embodiment is done according to technical spirit of the present invention any trickle amendment, adjustment, equivalently replace and improve, all should be included in the protection domain of technical solution of the present invention.
Claims (10)
1. the super weather-proof matt powder coating of fluorine carbon-polyester complex type, is characterized in that, comprises the first component by weight 1:1 ~ 1:1.5 compound and component B, wherein,
Described first component comprises the component of following weight:
Described component B comprises the component of following weight:
2. the super weather-proof matt powder coating of fluorine carbon-polyester complex type according to claim 1, it is characterized in that, after this powder coating and their application, coating is matt effect.
3. the super weather-proof matt powder coating of fluorine carbon-polyester complex type according to claim 1, it is characterized in that, described first component and component B weight ratio are 1:1 ~ 1:1.2.
4. the super weather-proof matt powder coating of fluorine carbon-polyester complex type according to claim 1, it is characterized in that, described fluoro-resin is trifluorochloroethylene and vinyl ether co-polymer class fluorine resin (FEVE), and its solid Oil repellent is 20 ~ 25%, and hydroxyl value is 30 ~ 55mgKOH/g.
5. the super weather-proof matt powder coating of fluorine carbon-polyester complex type according to claim 1, it is characterized in that, described isocyanate resin is dead front type isophorone diisocyanate.
6. the super weather-proof matt powder coating of fluorine carbon-polyester complex type according to claim 1, it is characterized in that, described saturated carboxyl polyester resin A and saturated carboxyl polyester resin B is the condensation product of polycarboxylic acid and polyvalent alcohol, the acid number of described saturated carboxyl polyester resin A is 50 ~ 57mgKOH/g, and the acid number of described saturated carboxyl polyester resin B is 20 ~ 27mgKOH/g.
7. a preparation method for the super weather-proof matt powder coating of fluorine carbon-polyester complex type, is characterized in that, comprise the following steps:
A, preparation first component sheet material:
A () takes fluoro-resin, isocyanate resin, saturated carboxyl polyester resin A, filler, flow agent, st-yrax, pigment by proportioning, be placed in compounding jar, and fully mixing is also broken;
B the material after () fragmentation enters in forcing machine and melt extrudes;
(c) extrude after material through compressing tablet, cooling, simple crushing slabbing material;
B, prepare component B sheet material:
A () takes fluoro-resin, isocyanate resin, saturated carboxyl polyester resin B, filler, flow agent, st-yrax, pigment by proportioning, be placed in compounding jar, and fully mixing is also broken;
B the material after () fragmentation enters in forcing machine and melt extrudes;
(c) extrude after material through compressing tablet, cooling, simple crushing slabbing material;
C, Jiang Jia, component B sheet material, by weight 1:1 ~ 1:1.5 mixing, then pulverize through pulverizing mill, sieve and pack and obtain powder coating.
8. the preparation method of the super weather-proof matt powder coating of fluorine carbon-polyester complex type according to claim 7, it is characterized in that, described preparation first component sheet material and each component in the step (a) prepared in component B sheet material mix and the broken time is 1 ~ 30 minute.
9. the preparation method of the super weather-proof matt powder coating of fluorine carbon-polyester complex type according to claim 7, it is characterized in that, described preparation first component sheet material is 95 ~ 130 DEG C with the extrusion temperature in the step (b) prepared in component B sheet material, and described forcing machine adopts two or single screw extrusion machine.
10. the preparation method of the super weather-proof matt powder coating of fluorine carbon-polyester complex type according to claim 7, is characterized in that, the diameter of particle after described step C screening is 1 ~ 100 micron.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106381022A (en) * | 2016-08-31 | 2017-02-08 | 苏州翰晨商贸有限公司 | Weather-proof anti-corrosion highlight powdery paint |
| CN109321100A (en) * | 2018-09-20 | 2019-02-12 | 中山市凯德美氟碳新材料有限公司 | A kind of antibacterial fluorocarbon powder paint and preparation method thereof |
| CN109401461A (en) * | 2018-09-14 | 2019-03-01 | 佛山市涂亿装饰材料科技有限公司 | A kind of weatherability fluorocarbon powder paint and its preparation method and application |
| CN109517495A (en) * | 2018-10-30 | 2019-03-26 | 广州擎天材料科技有限公司 | A kind of two-component matt self-cleaning powder paint and preparation method thereof |
| CN109575778A (en) * | 2018-12-25 | 2019-04-05 | 佛山科学技术学院 | A kind of high temperature resistant matt ceramic powdery paints and preparation method thereof |
| CN109689721A (en) * | 2016-09-18 | 2019-04-26 | 阿克佐诺贝尔国际涂料股份有限公司 | Mixed type polyester-fluorocarbon powder paint composition and the method for coating substrate with the composition |
| CN109735214A (en) * | 2019-01-28 | 2019-05-10 | 天津盛达新材料有限公司 | A kind of matt weather-resistance powder coatings and preparation method |
| CN111019489A (en) * | 2019-12-12 | 2020-04-17 | 广东华江粉末科技有限公司 | FEVE fluorocarbon metal powder coating for metal surface and preparation method thereof |
| CN115851084A (en) * | 2023-02-28 | 2023-03-28 | 山东千江粉末科技有限公司 | High-alkali-resistance powder coating and preparation method thereof |
| TWI798306B (en) * | 2017-12-07 | 2023-04-11 | 日商Ａｇｃ股份有限公司 | Method for producing powder, powder coating and laminate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106381022A (en) * | 2016-08-31 | 2017-02-08 | 苏州翰晨商贸有限公司 | Weather-proof anti-corrosion highlight powdery paint |
| CN109689721A (en) * | 2016-09-18 | 2019-04-26 | 阿克佐诺贝尔国际涂料股份有限公司 | Mixed type polyester-fluorocarbon powder paint composition and the method for coating substrate with the composition |
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| CN109321100A (en) * | 2018-09-20 | 2019-02-12 | 中山市凯德美氟碳新材料有限公司 | A kind of antibacterial fluorocarbon powder paint and preparation method thereof |
| CN109517495A (en) * | 2018-10-30 | 2019-03-26 | 广州擎天材料科技有限公司 | A kind of two-component matt self-cleaning powder paint and preparation method thereof |
| CN109575778A (en) * | 2018-12-25 | 2019-04-05 | 佛山科学技术学院 | A kind of high temperature resistant matt ceramic powdery paints and preparation method thereof |
| CN109735214A (en) * | 2019-01-28 | 2019-05-10 | 天津盛达新材料有限公司 | A kind of matt weather-resistance powder coatings and preparation method |
| CN111019489A (en) * | 2019-12-12 | 2020-04-17 | 广东华江粉末科技有限公司 | FEVE fluorocarbon metal powder coating for metal surface and preparation method thereof |
| CN115851084A (en) * | 2023-02-28 | 2023-03-28 | 山东千江粉末科技有限公司 | High-alkali-resistance powder coating and preparation method thereof |
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