CN109735214A - A kind of matt weather-resistance powder coatings and preparation method - Google Patents
A kind of matt weather-resistance powder coatings and preparation method Download PDFInfo
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Abstract
The invention discloses a kind of matt weather-resistance powder coatings and preparation methods, the matt weather-resistance powder coatings, component including following parts by weight is constituted: the first powder: 49~49.9 parts, second powder: 49~49.9 parts, aluminium oxide: 0.2~2 part, and the mass ratio of first powder and the second powder is 1:1；The preparation method of above-mentioned coating includes: step 1, prepares first powder；Step 2, second powder is prepared；Step 3, the first powder of predetermined ratio, the second powder and aluminium oxide are mixed, obtains product.Matt High-weather-resistapowder powder paint of the invention is mixed in proportion by the first powder and the second powder and reaches matt and curing performance is good, the excellent effect of weather resistance.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of matt weather-resistance powder coatings and preparation method.
Background technique
Powdery paints is that one kind is novel, is free of solvent, 100% solid powdery coating, in use by drying
The coating of roasting melting levelling film-forming.Meet high efficiency (efficiency), excellent film performance as generally acknowledged
(excellence), the 4E type coating products of ecological environment-friendly type (ecology) and economical (economy).Powdery paints has
Recyclable, environmental protection, solvent-free pollution, energy-efficient advantage are led in many fields, such as shipping industry, pipeline industry, mechanical equipment
Domain is gradually instead of paint.With the development of society, powdery paints is required that possessing higher stability, especially powder applies
The weatherability of material is by everybody extensive concern.Weatherability is that coating is applied to the outdoor test through climate, such as illumination, cold and hot, wind
Comprehensive destruction, tolerance caused by rain, bacterium etc. are referred to as weatherability.
The weather-proof difference of industry different company different product, especially in the production of matt powdery paints, due to normal
Rule matt powdery paints needs to be added delustering agent and achievees the effect that delustring, and powdery paints is influenced by delustering agent, so that sub-
The weatherability of photosensitiveness powdery paints is bad, generally 3-5, and for this problem, the present invention provides a kind of excellent appearance of film
Matt weather-resistance powder coatings.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of matt weatherabilities of excellent appearance of film
Powdery paints and preparation method.The matt weather-resistance powder coatings for using the method for the present invention to prepare is outdoor extra-weather-proof semi-gloss powder
Last coating, weatherability with super strength, levelability and yellowing resistance.
The present invention is achieved by the following technical solutions:
A kind of matt weather-resistance powder coatings, the component including following parts by weight are constituted: the first powder: 49~49.9
Part, the second powder: 49~49.9 parts, aluminium oxide: 0.2~2 part, and the mass ratio of first powder and the second powder is 1:
1；
First powder is made of following parts by weight component: the first polyester resin: 40~45 parts, third polyester tree
Rouge: 7~8 parts, the first curing agent: 1~3 part, the second curing agent: 4.5~4.7 parts, levelling agent: 0.7~1.5 part, optical brightener:
0.5~1.5 part, degasser: 0.3~0.5 part, wax powder: 0.4~0.5 part, filler: 35~45 parts, titanium dioxide: 1~1.5 part, face
Material: 1.5~1.8 parts；
Second powder is made of following parts by weight component: the second polyester resin: 40~45 parts, third polyester tree
Rouge: 7~8 parts, the first curing agent: 1~3 part, the second curing agent: 1.8~1.9 parts, levelling agent: 0.7~1.5 part, optical brightener:
0.5~1.5 part, degasser: 0.3~0.5 part, wax powder: 0.4~0.5 part, filler: 35~45 parts, titanium dioxide: 1~1.5 part, face
1.5~1.8 parts of material；
First polyester resin is 55~65mgKOH/g of acid value, and viscosity is the super-weatherable polyether tree of 0.25~0.4Pa.S
Rouge, second polyester resin are 38~48mgKOH/g of acid value, and viscosity is the super-weatherable polyether resin of 0.25~0.4Pa.S, institute
State fluoroolefins-vinyl ether co-polymer (FEVE) thermosetting fluoro powder that third polyester resin is 51~55 DEG C of glass transition temperature (Tg)
Last resin；
First curing agent is the polyisocyanate cyanogen of 45~48 DEG C of polyurethane powdered paint curing agent or glass transition temperature (Tg)
Acid esters adduct；Second curing agent is polycyclic heteroaryl oxygen compound, preferably isocyanuric acid three-glycidyl ester；
The levelling agent is the mixture of acrylate copolymer and silica, and main function is to provide uniform table
Face tension makes have good wetability between powdery paints and coated article simultaneously；
The optical brightener is the copolymer of butyl acrylate and methyl methacrylate, and main function is improved outside film
It sees；
The degasser is benzoin (diphenylhydroxyethanone), and main function is the small molecule generated when making crosslinking curing
The volatile substances such as object are closed to escape out；
The filler is barium sulfate；Main function is the hardness for improving film, while having certain extinction effect；
The titanium dioxide is titanium dioxide；
The wax powder is modified amide wax powder, and main function is to improve to apply film toughness.
In above-mentioned technical proposal, the barium sulfate is delustring barium sulfate
In above-mentioned technical proposal, the titanium dioxide is rutile type titanium white.
In above-mentioned technical proposal, the pigment is carbon black, iron oxide red, iron oxide yellow.
A kind of matt weather-resistance powder coatings, the component including following parts by weight are constituted: the first powder: 49~49.9
Part, the second powder: 49~49.9 parts, aluminium oxide: 0.2~1 part, and the mass ratio of first powder and the second powder is 1:
1；
First powder is made of following parts by weight component: the first polyester resin: 40~45 parts, third polyester tree
Rouge: 7~8 parts, polyurethane powdered paint curing agent: 2 parts, isocyanuric acid three-glycidyl ester: 4.5~4.7 parts, acrylate is total
The mixture of polymers and silica: 0.7~1.5 part, the copolymer of butyl acrylate and methyl methacrylate: 0.5~1.5
Part, benzoin: 0.3~0.5 part, modified amide wax powder: 0.4~0.5 part, delustring barium sulfate: 35~45 parts, rutile titanium dioxide
Powder: 1.2 parts, pigment: 1.67 parts；
Second powder is made of following parts by weight component: the second polyester resin: 40~45 parts, third polyester tree
Rouge: 7~8 parts, polyurethane powdered paint curing agent: 2 parts, isocyanuric acid three-glycidyl ester: 1.8~1.9 parts, acrylate is total
The mixture of polymers and silica: 0.7~1.5 part, the copolymer of butyl acrylate and methyl methacrylate: 0.5~1.5
Part, benzoin: 0.3~0.5 part, modified amide wax powder: 0.4~0.5 part, delustring barium sulfate: 35~45 parts, rutile titanium dioxide
Powder: 1.2 parts, 1.67 parts of pigment；
First polyester resin is 55~65mgKOH/g of acid value, and viscosity is the super-weatherable polyether tree of 0.25~0.4Pa.S
Rouge, second polyester resin are 38~48 unit mgKOH/g of acid value, and viscosity is the super-weatherable polyether tree of 0.25~0.4Pa.S
Rouge, fluoroolefins-vinyl ether co-polymer thermosetting fluoro powder tree that the third polyester resin is 51~55 DEG C of glass transition temperature
Acrylic copolymer mass concentration is 60%~70% in the mixture of rouge, the acrylate copolymer and silica.
A kind of production method of above-mentioned technical proposal Central Asia photosensitiveness weather-resistance powder coatings, comprising the following steps:
Step 1, first powder is prepared:
1) it is pre-mixed, by the first polyester resin of the parts by weight, third polyester resin, the first curing agent, second is solid
Agent, levelling agent, optical brightener, degasser, wax powder, filler, titanium dioxide, pigment are uniformly mixed；
2) squeeze out, by the mixture 1) obtained squeeze out, extrusion process use double screw extruder, screw speed 40HZ ± 2,
Screw(-type) feeder revolving speed 20HZ ± 2 between 90~120 DEG C of Heating Zone Temperature, keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process is crushed to using pulverizer less than 180 purposes
Grain, obtains first powder；
Step 2, second powder is prepared:
1) it is pre-mixed, by the second polyester resin of the parts by weight, third polyester resin, the first curing agent, second is solid
Agent, levelling agent, optical brightener, degasser, wax powder, filler, titanium dioxide, pigment are uniformly mixed；
2) squeeze out, by the mixture 1) obtained squeeze out, extrusion process use double screw extruder, screw speed 40HZ ± 2,
Screw(-type) feeder revolving speed 20HZ ± 2 between 90~120 DEG C of Heating Zone Temperature, keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process is crushed to using pulverizer less than 180 purposes
Grain, obtains first powder；
Step 3, the first powder: 49~49.9 parts, the second powder: 49~49.9 parts, aluminium oxide: 0.2~2 part, and institute
The mass ratio for stating the first powder and the second powder is 1:1, is mixed, obtains product matt weather-resistance powder coatings.
A kind of production method of above-mentioned technical proposal Central Asia photosensitiveness weather-resistance powder coatings, comprising the following steps:
Step 1, first powder is prepared:
1) it is pre-mixed, by the first polyester resin of the parts by weight, third polyester resin, the first curing agent, second is solid
Agent, levelling agent, optical brightener, degasser, wax powder, filler, titanium dioxide, pigment are uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses 60 extruder of Sheng Shida, and 1 area's temperature is 90 DEG C
It is 105 DEG C of ± 2,4 area's temperature is 100 DEG C ± 2 that ± 2,2 area's temperature, which are 95 DEG C of ± 2,3 area's temperature, and lower head piece temperature of charge control exists
Between 120~125 DEG C, screw speed 45HZ ± 2, screw(-type) feeder revolving speed 20HZ ± 2 keep the abundant melting mixing of material uniform,
Keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process uses 05 grinding machine of Sheng Shida, above-mentioned technology
In scheme, in the crushing process, smashed product is sieved using 180 mesh antistatic sieves, and fine powder passes through rotation point
From entering dust bucket, coarse powder only sieve obtains uniform particle sizes and charges good powder to be the into coarse powder recycling bins under sieve
One powder, D10 are not less than 12 μm, and D50=34 ± 1 μm, D90 is not more than 61 μm, and powder temperature is not more than 30 DEG C；
Step 2, second powder is prepared:
1) it is pre-mixed, by the second polyester resin of the parts by weight, third polyester resin, the first curing agent, second is solid
Agent, levelling agent, optical brightener, degasser, wax powder, filler, titanium dioxide, pigment are uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses 60 extruder of Sheng Shida, and 1 area's temperature is 90 DEG C
It is 105 DEG C of ± 2,4 area's temperature is 100 DEG C ± 2 that ± 2,2 area's temperature, which are 95 DEG C of ± 2,3 area's temperature, and lower head piece temperature of charge control exists
Between 120~125 DEG C, screw speed 45HZ ± 2, screw(-type) feeder revolving speed 20HZ ± 2 keep the abundant melting mixing of material uniform,
Keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process uses 05 grinding machine of Sheng Shida, above-mentioned technology
In scheme, in the crushing process, smashed product is sieved using 180 mesh antistatic sieves, and fine powder passes through rotation point
From entering dust bucket, coarse powder only sieve obtains uniform particle sizes and charges good powder to be the into coarse powder recycling bins under sieve
Two powders, D10 are not less than 12 μm, and D50=34 ± 1 μm, D90 is not more than 61 μm, and powder temperature is not more than 30 DEG C；
Step 3, the first powder: 49~49.9 parts, the second powder: 49~49.9 parts, aluminium oxide: 0.2~2 part, and institute
The mass ratio for stating the first powder and the second powder is 1:1, is mixed, obtains product matt weather-resistance powder coatings.
The advantages and benefits of the present invention are:
It can make this poor technical problem of weatherability of powdery paints for product addition delustering agent, the present invention provides a kind of Asia
Photosensitiveness High-weather-resistapowder powder paint is mixed in proportion by the first powder and the second powder and reaches matt and curing performance is good, resistance to
Wait the effect haveing excellent performance.
Firstly, the demand based on market to excellent appearance of film and physical mechanics, selects thermosetting powder coating.In thermosetting
Property powdery paints in, it is contemplated that the problem of weatherability, the present invention selects polyester type powder paint, light resistance, weatherability, heat-resisting
Property it is excellent, be not easy yellowing and adhesive force, levelability, film impact hardness, flexibility, etc. good physical performances, when baking film forming
Substantially byproduct of reaction is not generated.
The present invention passes through polycyclic heteroaryl oxygen compound (preferably triglycidyl isocyanurate) and two kinds of different activities
Two different powdery paints (i.e. the first powder and is respectively configured in polyester resin (the first polyester resin and the second polyester resin)
Two powders) carry out it is dry-mixed, since reactivity is different between two kinds of powdery paints, between two kinds of film forming matters compatibility it is bad to
Achieve the effect that delustring.
Two kinds of primary polyester resins (the first polyester resin and the second polyester resin) are by neopentyl glycol used in the present invention
(NPG) it is synthesized with M-phthalic acid (PIA), with general outdoor polyester ratio, weatherability reaches extra-weather-proof rank, also has good
Yellowing resistance.The acid that general outdoor polyester resin uses is terephthalic acid (TPA) (PTA), and raw material attribute determines weatherability.By
The polyester resin synthesized based on phthalic acid and neopentyl glycol, compared with the polyester resin based on terephthalic acid (TPA), film protects light
Rate can be improved 3 times, and the reason of terephthaldehyde's acid resin weatherability difference is the short wave ultraviolet that terephthalic acid (TPA) absorbs 297nm,
In contrast, the maximum absorption wavelength of M-phthalic acid is not in this wave band, so good weatherability.The reason of selecting neopentyl glycol exists
There is no β-hydrogen atom on strand in it, β-hydrogen atom concentration is lower, and the weatherability that polyester assigns film is better.Meanwhile instead
It should synthesize and need catalyst, conventional polyester catalyst is exactly Mono-n-butyltin, and this catalyst belongs to organic tin catalyst,
Organotin locally can generate stimulation to skin, respiratory tract, cornea, be caused entirely by skin or brain edema to human hazard
Body poisoning, in addition it is dead.The catalyst of polyester used in the present invention is a kind of novel catalyst without organotin, is successfully avoided
This problem.
The present invention is separately added into both primary polyester resins (the first polyester resin and the second polyester resin) and is respectively prepared
It is dry-mixed with 1:1 ratio after first powder and the second powder, it can be made into outdoor extra-weather-proof and without organotin matt powder and apply
Material.
Main poly- polyester resin (the first polyester resin and the second polyester resin) used in the present invention and curing agent (isocyanuric acid
Three-glycidyl ester) it is formed a film by cross-linking and curing reaction.The reaction mechanism is as follows:
Being typically exposed to outdoor powder coating product can be because of sunlight irradiation, temperature, moisture in air and other pollution
For object there is a situation where degradation with aging, general main cause is oxidative degradation caused by sunlight, can make cracked film, catalysis,
Phenomena such as mechanical property reduction and glossiness decline, xanthochromia, dusting, influences its dicoration.The present invention is in order to have product
Excellent storage stability, overlength weatherability, excellent anticorrosive and splendid salt fog resistance adds into two kinds of powder simultaneously
Enter the third polyester resin (third polyester resin: thermosetting fluoro powdex) and corresponding curing agent.
The present invention as the first powder and the second powder according to weight 1:1 ratio it is dry-mixed made from the extra-weather-proof Asia of outdoor
Light powder paint, weatherability with super strength, levelability and yellowing resistance.
It is dry-mixed that two different powdery paints progress are respectively configured, since reactivity is different between two kinds of powdery paints,
Compatibility is bad to achieve the effect that delustring between two kinds of film forming matters.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, combined with specific embodiments below furtherly
Bright technical solution of the present invention.
Embodiment one
A kind of production method of above-mentioned technical proposal Central Asia photosensitiveness weather-resistance powder coatings, comprising the following steps:
Step 1, first powder is prepared:
1) it is pre-mixed, by 55~65mgKOH/g of acid value of the weight percent, viscosity is the super of 0.25~0.4Pa.S
Weatherable polyether resin 41.4%, FEVE (fluoroolefins-vinyl ether co-polymer) thermosetting fluoro that 51~55 DEG C of Tg glass transition temperature
The polyisocyanate adduct 2% of powdex 8%, polyurethane powdered paint curing agent or Tg glass transition temperature 45~48, it is different
The mixture 0.8% of cyanuric acid three-glycidyl ester 4.6%, acrylate copolymer and silica, butyl acrylate and first
The copolymer 0.5% of base methyl acrylate, benzoin 0.4%, modified amide wax powder 0.5%, barium sulfate 39%, rutile-type
Titanium dioxide 1.2%, carbon black, iron oxide red, iron oxide yellow 1.67% are uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses 60 extruder of Sheng Shida, and 1 area's temperature is 90 DEG C
It is 105 DEG C of ± 2,4 area's temperature is 100 DEG C ± 2 that ± 2,2 area's temperature, which are 95 DEG C of ± 2,3 area's temperature, and lower head piece temperature of charge control exists
Between 120~125 DEG C, screw speed 45HZ ± 2, screw(-type) feeder revolving speed 20HZ ± 2 keep the abundant melting mixing of material uniform,
Keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process uses 05 grinding machine of Sheng Shida, main mill setting
In 48HZ ± 2, pair mill is set in 22HZ ± 2, and pressure feeding spiral conveyer is set in 18HZ ± 2, and air inlet wind chill temperatures are not more than
10 DEG C, smashed product is sieved using 180 mesh antistatic sieves, and fine powder enters dust bucket, coarse powder by rotating separation
But sieve obtains uniform particle sizes and charges good powder to be the first powder, D10 is not less than into coarse powder recycling bins under sieve
12 μm, D50=34 ± 1 μm, D90 is not more than 61 μm, and powder temperature is not more than 30 DEG C；Step 2, second powder is prepared:
1) it is pre-mixed, by 38~48mgKOH/g of acid value of the weight percent, viscosity is the super of 0.25~0.4Pa.S
Weatherable polyether resin ester 44.2%, FEVE (fluoroolefins-vinyl ether co-polymer) thermosetting property that 51~55 DEG C of Tg glass transition temperature
Fluorine powdex 8%, the polyisocyanate adduct 2% of Tg glass transition temperature 45~48, isocyanuric acid three-glycidyl ester
1.8%, the mixture 0.8% of acrylate copolymer and silica, the copolymerization of butyl acrylate and methyl methacrylate
Object 0.5%, benzoin 0.4%, modified amide wax powder 0.5%, barium sulfate 39%, rutile type titanium white 1.2%, pigment
1.67% is uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses 60 extruder of Sheng Shida, and 1 area's temperature is 90 DEG C
It is 105 DEG C of ± 2,4 area's temperature is 100 DEG C ± 2 that ± 2,2 area's temperature, which are 95 DEG C of ± 2,3 area's temperature, and lower head piece temperature of charge control exists
Between 120~125 DEG C, screw speed 45HZ ± 2, screw(-type) feeder revolving speed 20HZ ± 2 keep the abundant melting mixing of material uniform,
Keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process uses 05 grinding machine of Sheng Shida, main mill setting
In 48HZ ± 2, pair mill is set in 22HZ ± 2, and pressure feeding spiral conveyer is set in 18HZ ± 2, and air inlet wind chill temperatures are not more than
10 DEG C, smashed product is sieved using 180 mesh antistatic sieves, and fine powder enters dust bucket, coarse powder by rotating separation
But sieve obtains uniform particle sizes and charges good powder to be the second powder, D10 is not less than into coarse powder recycling bins under sieve
12 μm, D50=34 ± 1 μm, D90 is not more than 61 μm, and powder temperature is not more than 30 DEG C；
Step 3, the second powder that the first powder 49.9% step 1 of the parts by weight obtained is obtained with step 2
49.9% and vapor phase method aluminium oxide 0.2%, it is mixed, mixed material crosses 120 meshes, obtains product matt weatherability
Powdery paints.It see the table below through testing product mass parameter:
Embodiment two
Step 1, first powder is prepared:
1) it is pre-mixed, by 55~65mgKOH/g of acid value of the weight percent, viscosity is the super of 0.25~0.4Pa.S
Weatherable polyether resin 41.4%, FEVE (fluoroolefins-vinyl ether co-polymer) thermosetting fluoro powder of Tg glass transition temperature 51~55
The polyisocyanate adduct 2.5% of last resin 10%, polyurethane powdered paint curing agent or Tg glass transition temperature 45~48, it is different
The mixture 0.8% of cyanuric acid three-glycidyl ester 4.6%, acrylate copolymer and silica, butyl acrylate and first
The copolymer 0.5% of base methyl acrylate, benzoin 0.4%, modified amide wax powder 0.5%, barium sulfate 36.5%, rutile
Type titanium dioxide 1.2%, carbon black, iron oxide red, iron oxide yellow 1.67% are uniformly mixed；It (will be specifically supplemented in using name of material
Come)
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses 60 extruder of Sheng Shida, and 1 area's temperature is 90 DEG C
It is 105 DEG C of ± 2,4 area's temperature is 100 DEG C ± 2 that ± 2,2 area's temperature, which are 95 DEG C of ± 2,3 area's temperature, and lower head piece temperature of charge control exists
Between 120~125 DEG C, screw speed 45HZ ± 2, screw(-type) feeder revolving speed 20HZ ± 2 keep the abundant melting mixing of material uniform,
Keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process uses 05 grinding machine of Sheng Shida, main mill setting
In 48HZ ± 2, pair mill is set in 22HZ ± 2, and pressure feeding spiral conveyer is set in 18HZ ± 2, and air inlet wind chill temperatures are not more than
10 DEG C, smashed product is sieved using 180 mesh antistatic sieves, and fine powder enters dust bucket, coarse powder by rotating separation
But sieve obtains uniform particle sizes and charges good powder to be the first powder, D10 is not less than into coarse powder recycling bins under sieve
12 μm, D50=34 ± 1 μm, D90 is not more than 61 μm, and powder temperature is not more than 30 DEG C；
Step 2, second powder is prepared:
1) it is pre-mixed, by 38~48 unit mgKOH/g of acid value of the parts by weight, viscosity is 0.25~0.4Pa.S's
Super-weatherable polyether resin 44.2%, FEVE (fluoroolefins-vinyl ether co-polymer) thermosetting fluoro of Tg glass transition temperature 51~55
The polyisocyanate adduct 2.5% of powdex 10%, polyurethane powdered paint curing agent or Tg glass transition temperature 45~48,
The mixture 0.8% of isocyanuric acid three-glycidyl ester 1.8%, acrylate copolymer and silica, butyl acrylate with
The copolymer 0.5% of methyl methacrylate, benzoin 0.4%, modified amide wax powder 0.5%, barium sulfate 36.5%, golden red
Stone-type titanium dioxide 1.2%, carbon black, iron oxide red, iron oxide yellow 1.67% are uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses 60 extruder of Sheng Shida, and 1 area's temperature is 90 DEG C
It is 105 DEG C of ± 2,4 area's temperature is 100 DEG C ± 2 that ± 2,2 area's temperature, which are 95 DEG C of ± 2,3 area's temperature, and lower head piece temperature of charge control exists
Between 120~125 DEG C, screw speed 45HZ ± 2, screw(-type) feeder revolving speed 20HZ ± 2 keep the abundant melting mixing of material uniform,
Keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process uses 05 grinding machine of Sheng Shida, main mill setting
In 48HZ ± 2, pair mill is set in 22HZ ± 2, and pressure feeding spiral conveyer is set in 18HZ ± 2, and air inlet wind chill temperatures are not more than
10 DEG C, smashed product is sieved using 180 mesh antistatic sieves, and fine powder enters dust bucket, coarse powder by rotating separation
But sieve obtains uniform particle sizes and charges good powder to be the second powder, D10 is not less than into coarse powder recycling bins under sieve
12 μm, D50=34 ± 1 μm, D90 is not more than 61 μm, and powder temperature is not more than 30 DEG C；
Step 3, the second powder that the first powder 49.9% step 1 of the parts by weight obtained is obtained with step 2
49.9% and vapor phase method aluminium oxide 0.2%, it is mixed, mixed material crosses 120 meshes, obtains product matt weatherability
Powdery paints.
It see the table below through testing product mass parameter:
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal
Fall into protection scope of the present invention.
Claims (9)
1. a kind of matt weather-resistance powder coatings, which is characterized in that the component including following parts by weight is constituted: the first powder
Material: 49~49.9 parts, the second powder: 49~49.9 parts, aluminium oxide: 0.2~2 part, and first powder and the second powder
Mass ratio be 1:1；
First powder is made of following parts by weight component: the first polyester resin: 40~45 parts, third polyester resin: 7~
8 parts, the first curing agent: 1~3 part, the second curing agent: 4.5~4.7 parts, levelling agent: 0.7~1.5 part, optical brightener: 0.5~1.5
Part, degasser: 0.3~0.5 part, wax powder: 0.4~0.5 part, filler: 35~45 parts, titanium dioxide: 1~1.5 part, pigment: 1.5~
1.8 part；
Second powder is made of following parts by weight component: the second polyester resin: 40~45 parts, third polyester resin: 7~
8 parts, the first curing agent: 1~3 part, the second curing agent: 1.8~1.9 parts, levelling agent: 0.7~1.5 part, optical brightener: 0.5~1.5
Part, degasser: 0.3~0.5 part, wax powder: 0.4~0.5 part, filler: 35~45 parts, titanium dioxide: 1~1.5 part, pigment 1.5~
1.8 part；
First polyester resin is 55~65mgKOH/g of acid value, and viscosity is the super-weatherable polyether resin of 0.25~0.4Pa.S,
Second polyester resin is 38~48mgKOH/g of acid value, and viscosity is the super-weatherable polyether resin of 0.25~0.4Pa.S, described
Fluoroolefins-vinyl ether co-polymer thermosetting fluoro powdex that third polyester resin is 51~55 DEG C of glass transition temperature；
First curing agent is polyurethane powdered paint curing agent or 45~48 DEG C of glass transition temperature of polyisocyanates adduction
Object；Second curing agent is polycyclic heteroaryl oxygen compound；
The levelling agent is the mixture of acrylate copolymer and silica；
The optical brightener is the copolymer of butyl acrylate and methyl methacrylate；
The degasser is benzoin (diphenylhydroxyethanone)；
The filler is barium sulfate；
The titanium dioxide is titanium dioxide；
The wax powder is modified amide wax powder.
2. a kind of matt weather-resistance powder coatings according to claim 1, which is characterized in that second curing agent is
Isocyanuric acid three-glycidyl ester.
3. a kind of matt weather-resistance powder coatings according to claim 1, which is characterized in that the barium sulfate is delustring
Barium sulfate.
4. a kind of matt weather-resistance powder coatings according to claim 1, which is characterized in that the titanium dioxide is golden red
Stone-type titanium dioxide.
5. a kind of matt weather-resistance powder coatings according to claim 1, which is characterized in that the pigment is carbon
Black, iron oxide red, iron oxide yellow.
6. a kind of matt weather-resistance powder coatings, which is characterized in that the component including following parts by weight is constituted: the first powder
Material: 49~49.9 parts, the second powder: 49~49.9 parts, aluminium oxide: 0.2~1 part, and first powder and the second powder
Mass ratio be 1:1；
First powder is made of following parts by weight component: the first polyester resin: 40~45 parts, third polyester resin: 7~
8 parts, polyurethane powdered paint curing agent: 2 parts, isocyanuric acid three-glycidyl ester: 4.5~4.7 parts, acrylate copolymer with
The mixture of silica: 0.7~1.5 part, the copolymer of butyl acrylate and methyl methacrylate: 0.5~1.5 part, benzene
Acyloin: 0.3~0.5 part, modified amide wax powder: 0.4~0.5 part, delustring barium sulfate: 35~45 parts, rutile type titanium white:
1.2 parts, pigment: 1.67 parts；
Second powder is made of following parts by weight component: the second polyester resin: 40~45 parts, third polyester resin: 7~
8 parts, polyurethane powdered paint curing agent: 2 parts, isocyanuric acid three-glycidyl ester: 1.8~1.9 parts, acrylate copolymer with
The mixture of silica: 0.7~1.5 part, the copolymer of butyl acrylate and methyl methacrylate: 0.5~1.5 part, benzene
Acyloin: 0.3~0.5 part, modified amide wax powder: 0.4~0.5 part, delustring barium sulfate: 35~45 parts, rutile type titanium white:
1.2 parts, 1.67 parts of pigment；
First polyester resin is 55~65mgKOH/g of acid value, and viscosity is the super-weatherable polyether resin of 0.25~0.4Pa.S,
Second polyester resin is 38~48 unit mgKOH/g of acid value, and viscosity is the super-weatherable polyether resin of 0.25~0.4Pa.S,
Fluoroolefins-vinyl ether co-polymer thermosetting fluoro powdex that the third polyester resin is 51~55 DEG C of glass transition temperature,
Acrylic copolymer mass concentration is 60%~70% in the mixture of the acrylate copolymer and silica.
7. a kind of production method of matt weather-resistance powder coatings as described in claim 1, which is characterized in that including following
Step:
Step 1, first powder is prepared:
1) it is pre-mixed, by the first polyester resin of the parts by weight, third polyester resin, the first curing agent, the second curing agent,
Levelling agent, optical brightener, degasser, wax powder, filler, titanium dioxide, pigment are uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses double screw extruder, screw speed 40HZ ± 2, spiral
Batcher revolving speed 20HZ ± 2 between 90~120 DEG C of Heating Zone Temperature, keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process is crushed to the particle less than 180 mesh using pulverizer, obtains
To first powder；
Step 2, second powder is prepared:
1) it is pre-mixed, by the second polyester resin of the parts by weight, third polyester resin, the first curing agent, the second curing agent,
Levelling agent, optical brightener, degasser, wax powder, filler, titanium dioxide, pigment are uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses double screw extruder, screw speed 40HZ ± 2, spiral
Batcher revolving speed 20HZ ± 2 between 90~120 DEG C of Heating Zone Temperature, keep the abundant melting mixing of material uniform；
3) it crushes, 2) product obtained is crushed, the crushing process is crushed to the particle less than 180 mesh using pulverizer, obtains
To first powder；
Step 3, the first powder: 49~49.9 parts, the second powder: 49~49.9 parts, aluminium oxide: 0.2~2 part, and described
The mass ratio of one powder and the second powder is 1:1, is mixed, obtains product matt weather-resistance powder coatings.
8. production method according to claim 7, which is characterized in that the extrusion process uses 60 extruder of Sheng Shida,
The crushing process uses 05 grinding machine of Sheng Shida.
9. a kind of production method of matt weather-resistance powder coatings as described in claim 1, which is characterized in that including following
Step:
Step 1, first powder is prepared:
1) it is pre-mixed, by the first polyester resin of the parts by weight, third polyester resin, the first curing agent, the second curing agent,
Levelling agent, optical brightener, degasser, wax powder, filler, titanium dioxide, pigment are uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses 60 extruder of Sheng Shida, and 1 area's temperature is 90 DEG C ± 2,2
It is 105 DEG C of ± 2,4 area's temperature is 100 DEG C ± 2 that area's temperature, which is 95 DEG C of ± 2,3 area's temperature, lower head piece temperature of charge control 120~
Between 125 DEG C, screw speed 45HZ ± 2, screw(-type) feeder revolving speed 20HZ ± 2 keep the abundant melting mixing of material uniform, make material
Abundant melting mixing is uniform；
3) it crushes, 2) product obtained is crushed, the crushing process uses 05 grinding machine of Sheng Shida, smashed product
It is sieved using 180 mesh antistatic sieves, fine powder enters dust bucket by rotating separation, coarse powder only sieve, into coarse powder
Recycling bins obtain uniform particle sizes under sieve and charge good powder to be the first powder, and D10 is not less than 12 μm, D50=34 ± 1 μm,
D90 is not more than 61 μm, and powder temperature is not more than 30 DEG C；
Step 2, second powder is prepared:
1) it is pre-mixed, by the second polyester resin of the parts by weight, third polyester resin, the first curing agent, the second curing agent,
Levelling agent, optical brightener, degasser, wax powder, filler, titanium dioxide, pigment are uniformly mixed；
2) it squeezes out, 1) mixture obtained is squeezed out, extrusion process uses 60 extruder of Sheng Shida, and 1 area's temperature is 90 DEG C ± 2,2
It is 105 DEG C of ± 2,4 area's temperature is 100 DEG C ± 2 that area's temperature, which is 95 DEG C of ± 2,3 area's temperature, lower head piece temperature of charge control 120~
Between 125 DEG C, screw speed 45HZ ± 2, screw(-type) feeder revolving speed 20HZ ± 2 keep the abundant melting mixing of material uniform, make material
Abundant melting mixing is uniform；
3) it crushes, 2) product obtained is crushed, the crushing process uses 05 grinding machine of Sheng Shida, above-mentioned technical proposal
In, in the crushing process, smashed product is sieved using 180 mesh antistatic sieves, fine powder by rotating separation into
Enter dust bucket, only sieve obtains uniform particle sizes and charge good powder to be the second powder coarse powder into coarse powder recycling bins under sieve
Material, D10 are not less than 12 μm, and D50=34 ± 1 μm, D90 is not more than 61 μm, and powder temperature is not more than 30 DEG C；
Step 3, the first powder: 49~49.9 parts, the second powder: 49~49.9 parts, aluminium oxide: 0.2~2 part, and described
The mass ratio of one powder and the second powder is 1:1, is mixed, obtains product matt weather-resistance powder coatings.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110922856A (en) * | 2019-11-29 | 2020-03-27 | 老虎表面技术新材料（清远）有限公司 | Powder coating with ultrahigh weather-resistant extinction effect |
| CN112322154A (en) * | 2020-11-20 | 2021-02-05 | 湖南太子化工涂料有限公司 | Modified polyester extinction powder coating and preparation method thereof |
| WO2021030664A1 (en) * | 2019-08-15 | 2021-02-18 | Ppg Industries Ohio, Inc. | Powder coating compositions comprising a polyester and a fluoropolymer and coatings formed therefrom |
| CN112745746A (en) * | 2020-12-29 | 2021-05-04 | 老虎表面技术新材料（清远）有限公司 | Weather-resistant high-gloss powder coating composition and coating thereof |
| CN113881262A (en) * | 2021-08-26 | 2022-01-04 | 宁波爱甬新材料科技有限公司 | High-performance outdoor matte powder coating and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993420A (en) * | 2012-12-10 | 2013-03-27 | 金发科技股份有限公司 | Ternary polymerization polybutylene terephthalate (PBTG) polyether and preparation method thereof |
| CN103131308A (en) * | 2012-12-28 | 2013-06-05 | 广州擎天材料科技有限公司 | High-low acid value bi-component end carboxyl polyester resin composition for super-weather-proof dry-blending extinction powder coatings and application of the same |
| CN103554454A (en) * | 2013-10-25 | 2014-02-05 | 滁州市全丰物资有限公司 | Outdoor type polyester resin and production process thereof |
| CN104292441A (en) * | 2014-09-05 | 2015-01-21 | 广州擎天材料科技有限公司 | Pure polyester resin for TGIC cured high temperature resistant powder coatings, and preparation method thereof |
| CN105419609A (en) * | 2015-11-06 | 2016-03-23 | 广州擎天材料科技有限公司 | Extra-weather-resistant matt fluorocarbon-polyester composite powder coating and preparation method thereof |
| CN106867371A (en) * | 2017-03-14 | 2017-06-20 | 广东华江粉末科技有限公司 | A kind of aluminium section bar counter-bending thermal transfer powdery paints of low gloss and preparation method thereof |
-
2019
- 2019-01-28 CN CN201910088577.5A patent/CN109735214A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993420A (en) * | 2012-12-10 | 2013-03-27 | 金发科技股份有限公司 | Ternary polymerization polybutylene terephthalate (PBTG) polyether and preparation method thereof |
| CN103131308A (en) * | 2012-12-28 | 2013-06-05 | 广州擎天材料科技有限公司 | High-low acid value bi-component end carboxyl polyester resin composition for super-weather-proof dry-blending extinction powder coatings and application of the same |
| CN103554454A (en) * | 2013-10-25 | 2014-02-05 | 滁州市全丰物资有限公司 | Outdoor type polyester resin and production process thereof |
| CN104292441A (en) * | 2014-09-05 | 2015-01-21 | 广州擎天材料科技有限公司 | Pure polyester resin for TGIC cured high temperature resistant powder coatings, and preparation method thereof |
| CN105419609A (en) * | 2015-11-06 | 2016-03-23 | 广州擎天材料科技有限公司 | Extra-weather-resistant matt fluorocarbon-polyester composite powder coating and preparation method thereof |
| CN106867371A (en) * | 2017-03-14 | 2017-06-20 | 广东华江粉末科技有限公司 | A kind of aluminium section bar counter-bending thermal transfer powdery paints of low gloss and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 宾彦杰: "超耐候粉末涂料用聚酯树脂的合成与耐候性研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 顾宇昕等: "β-羟烷基酰胺固化型耐候粉末涂料用聚酯树脂的合成研究", 《现代涂料与涂装》 * |
| 马洪英: "户外低温固化粉末涂料用聚酯树脂的合成及其性能研究", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技I辑》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021030664A1 (en) * | 2019-08-15 | 2021-02-18 | Ppg Industries Ohio, Inc. | Powder coating compositions comprising a polyester and a fluoropolymer and coatings formed therefrom |
| US11015080B2 (en) | 2019-08-15 | 2021-05-25 | Ppg Industries Ohio, Inc. | Powder coating compositions and coatings formed therefrom |
| CN110922856A (en) * | 2019-11-29 | 2020-03-27 | 老虎表面技术新材料（清远）有限公司 | Powder coating with ultrahigh weather-resistant extinction effect |
| WO2021103989A1 (en) * | 2019-11-29 | 2021-06-03 | 老虎表面技术新材料（清远）有限公 | Powder coating having ultrahigh weather-proof and matt effects |
| CN110922856B (en) * | 2019-11-29 | 2021-11-05 | 老虎表面技术新材料（清远）有限公司 | Powder coating with ultrahigh weather-resistant extinction effect |
| CN112322154A (en) * | 2020-11-20 | 2021-02-05 | 湖南太子化工涂料有限公司 | Modified polyester extinction powder coating and preparation method thereof |
| CN112745746A (en) * | 2020-12-29 | 2021-05-04 | 老虎表面技术新材料（清远）有限公司 | Weather-resistant high-gloss powder coating composition and coating thereof |
| CN113881262A (en) * | 2021-08-26 | 2022-01-04 | 宁波爱甬新材料科技有限公司 | High-performance outdoor matte powder coating and preparation method thereof |
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