CN108285673A - A kind of weather resistant low brightness paint powder - Google Patents
A kind of weather resistant low brightness paint powder Download PDFInfo
- Publication number
- CN108285673A CN108285673A CN201810118887.2A CN201810118887A CN108285673A CN 108285673 A CN108285673 A CN 108285673A CN 201810118887 A CN201810118887 A CN 201810118887A CN 108285673 A CN108285673 A CN 108285673A
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- CN
- China
- Prior art keywords
- weather resistant
- low brightness
- acid value
- resistant low
- paint powder
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Classifications
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/06—Applying particulate materials
-
- 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
-
- 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
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/04—Polymer mixtures characterised by other features containing interpenetrating networks
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of weather resistant low brightness paint powders, including following components by weight percent raw material：Low acid value polyester 40~60%, high acid value solid propenoic acid resin 1~20%, TGIC5~9%, color stuffing 1~35%, general levelling agent 0.8~1.5%, moistening accelerating agent 0.3~1.5%, anti-yellowing styrax 0.2~0.8%；The method for the height acid resin co-extrusion delustring that the present invention develops, utilize the immiscible property of high acid value carboxyl acrylic resin and low acid value polyester resin, and high acid value acrylic resin curing rate is fast, low acid value curable polyester speed is slow, it is poor that reaction generation curing rate is grabbed in speed solidification, IPN (interpenetrating net polymer is generated when crosslinking) coating forms microstructure out-of-flatness, and rough surface becomes larger to the diffusing reflection degree of light, to which gloss declines.By adjusting the different proportion of height acid resin, it can control coating gloss range from unglazed to delustring 70% (60 °).
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of weather resistant low brightness paint powder.
Background technology
Gloss is known as low light less than 70% gloss unit in the powdery paints usage of trade.Low smooth powder is needed by special
Method reduces gloss.
Currently, the delustring principle of weather resistant low brightness powder be substantially the immiscible property using system, solidification grab reaction with
And the microcosmic out-of-flatness that IPN is generated carrys out delustring.Extinction method, which is generally divided into, is added delustring filler, delustring additive or delustring base-material
Three kinds of resin.Wherein delustring additive can divide：The delustring of physics delustering agent, chemical quenching agent delustring, mixing delustering agent delustring；Delustring
Binder resin can divide：Epoxy group acrylic resin, dry-mixed matting resin, height hydroxyl polyester etc..
Delustring filler is subject to certain restrictions in power formulations using additive amount, and light cannot effectively be greatly reduced
Pool, extinction effect is limited, can only be as a kind of extinction method of auxiliary.
Physics delustering agent easy tos produce " mist shadow " due to the presence of cerul, and scoring resistance is poor, water boiling resistance loss of gloss easy to whiten,
The disadvantages such as extrusion difficulty；The presence of delustring catalyst, storage stability also shorten therewith.
Chemical quenching agent is a kind of polyacid compound being modified with amine, and the polyacid chemical quenching agent that amine is modified is due to amine
Presence, heat resistance is bad, has apparent xanthochromia to be inclined to, and film levelability is poor.Coating surface low density, leads to salt spray resistance
Property, weatherability are bad.
Mixing delustering agent " mist shadow " disadvantage has improvement than physics delustering agent, and storage stability has looked for a compromise point.But
Water boiling resistance is still undesirable, and extinction effect is not suitable for the weather-proof occasion of high request by pet reaction activity influence.
Epoxy group acrylic resin extinction powder comprehensive performance is preferable, but hardness is poor.When extinction powder produces, it is desirable that point
It is good to dissipate property, when gloss is higher than 10%, production and application gloss are unstable.
Dry-mixed extinction method does not depend on delustring wax and catalyst, and boiling and storage stability have guarantee.It can be applied to surpass
High durable occasion.But dry-mixed delustred coating surface is susceptible to " shining point ", influences appearance.
Although height hydroxyl polyester light extinction method performance is remarkable, its curing agent relies on always import.Recent year also has life
Production, but its main synthesis material is also to rely on import.It is restricted in terms of raw material sources.
Invention content
The purpose of the present invention is to provide a kind of weather resistant low brightness paint powders to be opened based on height hydroxyl polyester light extinction method
The method using high low acid value resin co-extrusion delustring is sent out, by adjusting the different proportion of height acid resin, can control coating light
Damp range is from unglazed to delustring 70% (60 °).
The purpose of the present invention can be achieved through the following technical solutions：
A kind of weather resistant low brightness paint powder, including following components by weight percent raw material：
Further, which includes following components by weight percent raw material：
Further, the low acid value polyester resin, acid value are 27~37mgKOH/g, preferred acid number 32mgKOH/g；
The high acid value solid propenoic acid resin, acid value are 140~160mgKOH/g, preferred acid number 150mgKOH/g.
Further, the preparation flow of the weather resistant low brightness paint powder includes the following steps：
It after each group of weather resistant low brightness paint powder is distributed material, puts into high-speed mixer and mixes 3min, squeezed through screw rod
Go out machine host rotating speed 45Hz, feeding rotating speed 22Hz, melting extrusion tabletting is broken mixed under the process conditions that 115 DEG C~125 DEG C of temperature
It closes；Then it grinding and is classified through ACM flour mills again, be 45Hz by main mill rotating speed, pair mill rotating speed is 29Hz, and feeding rotating speed is 22Hz,
Sieve obtains weather resistant low brightness paint powder for grinding under the conditions of 180 purposes.
Further, the construction method of the weather resistant low brightness paint powder is：Using conventional electrostatic spraying device, spray voltage 60
~80kv, dust 0.05~0.2Mpa of air pressure, application under the execution conditions of 15~30mm of spray distance, is 200~210 in temperature
DEG C, solidification is to obtain film under the condition of cure that the time is 10~15min.
The principle of height acid resin co-extrusion delustring：Using the immiscible property of carboxyl acrylic resin and carboxyl polyester resin,
And high acid value acrylic resin curing rate is fast, low acid value curable polyester speed is slow, and speed solidification grabs reaction and generates solidification
Speed difference, IPN coatings form microstructure out-of-flatness, and rough surface becomes larger to the diffusing reflection degree of light, to which gloss declines.
Beneficial effects of the present invention：
A kind of weather resistant low brightness paint powder provided by the invention develops utilization based on height hydroxyl polyester light extinction method
The method of height acid resin co-extrusion delustring, using high acid value carboxyl acrylic resin (acid value be 140~160mgKOH/g) with it is low
The immiscible property and high acid value acrylic resin curing rate of acid value polyester resin (acid value is 27~37mgKOH/g) are fast, low
Acid value curable polyester speed is slow, and speed solidification plunder reaction generation curing rate is poor, and IPN (generates latex interpenetrating polymerization when crosslinking
Object) coating formation microstructure out-of-flatness, rough surface becomes larger to the diffusing reflection degree of light, to which gloss declines.Pass through tune
The different proportion of whole height acid resin can control coating gloss range from unglazed to delustring 70% (60 °)；Height acid resin co-extrusion
Light extinction method avoids：1) when adding physics delustering agent method delustring, influence of the cerul to coating " mist shadow "；2) disappear in addition chemistry
When photo etching method delustring, the presence of amine causes the influence of xanthochromia, salt spray resistance difference；3) when addition mixes delustering agent method delustring, resin
The influence of reactivity and water boiling resistance difference problem；4) in epoxy group acrylic matting, difference of hardness and gloss are higher than
10% produces and sprays the unstable influence of gloss；5) in dry-mixed delustring, coating surface is susceptible to the influence of " shining point "；
6) when the co-extrusion delustring of height hydroxyl polyester, curing agent relies on the influence of import.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Embodiment 1
Weather resistant low brightness paint powder at being grouped into：
Low acid value polyester：SJ4ET, Anhui Shenjian New Material Co., Ltd.'s product；
High acid value solid propenoic acid resin：SA151, the prompt sensible new material Co., Ltd product of six peaces；
TGIC：Mount Huang Hua Hui Science and Technology Ltd.s product；
General levelling agent：The polyacrylate levelling agent of PV88, Worlee company production；
Moisten accelerating agent：701B, Ningbo South-sea Chemical Co., Ltd.'s product；
Anti-yellowing styrax：Commercially available technical grade product；
Pigment：R902, the rutile type titanium white of E.I.Du Pont Company's production；
Filler：W-44HB, Guizhou China add the barium sulfate of fine mining industry Co., Ltd production.
It after each group of parts by weight is distributed material, puts into high-speed mixer and mixes 3min, turn through Screw Extrusion machine host
Fast 45Hz, feeding rotating speed 22Hz, the broken mixing of melting extrusion tabletting under the process conditions that 115 DEG C of temperature；Then it is milled again through ACM
Machine grinding classification is 45Hz by main mill rotating speed, and pair mill rotating speed is 29Hz, and feeding rotating speed is 22Hz, and sieve is under the conditions of 180 purpose
Grinding obtains weather resistant low brightness paint powder；
The construction method of the weather resistant low brightness paint powder is：Using conventional electrostatic spraying device, spray voltage 60kv dusts
Air pressure 0.05Mpa, application under the execution conditions of spray distance 15mm are 200 DEG C in temperature, and the time is the condition of cure of 10min
Lower solidification obtains film, and the performance test results of film are as shown in table 1.
Embodiment 2
Weather resistant low brightness paint powder at being grouped into：
Low acid value polyester：SJ4ET, Anhui Shenjian New Material Co., Ltd.'s product；
High acid value solid propenoic acid resin：SA151, the prompt sensible new material Co., Ltd product of six peaces；
TGIC：Mount Huang Hua Hui Science and Technology Ltd.s product；
General levelling agent：The polyacrylate levelling agent of PV88, Worlee company production；
Moisten accelerating agent：701B, Ningbo South-sea Chemical Co., Ltd.'s product；
Anti-yellowing styrax：Commercially available technical grade product；
Pigment：R902, the rutile type titanium white of E.I.Du Pont Company's production；
Filler：W-44HB, Guizhou China add the barium sulfate of fine mining industry Co., Ltd production.
It after each group of parts by weight is distributed material, puts into high-speed mixer and mixes 3min, turn through Screw Extrusion machine host
Fast 45Hz, feeding rotating speed 22Hz, the broken mixing of melting extrusion tabletting under the process conditions that 125 DEG C of temperature；Then it is milled again through ACM
Machine grinding classification is 45Hz by main mill rotating speed, and pair mill rotating speed is 29Hz, and feeding rotating speed is 22Hz, and sieve is under the conditions of 180 purpose
Grinding obtains weather resistant low brightness paint powder；
The construction method of the weather resistant low brightness paint powder is：Using conventional electrostatic spraying device, spray voltage 80kv dusts
Air pressure 0.2Mpa, application under the execution conditions of spray distance 30mm are 210 DEG C in temperature, and the time is under the condition of cure of 15min
Solidification obtains film, and the performance test results of film are as shown in table 1.
Embodiment 3
Weather resistant low brightness paint powder at being grouped into：
Low acid value polyester：SJ4ET, Anhui Shenjian New Material Co., Ltd.'s product；
High acid value solid propenoic acid resin：SA151, the prompt sensible new material Co., Ltd product of six peaces；
TGIC：Mount Huang Hua Hui Science and Technology Ltd.s product；
General levelling agent：The polyacrylate levelling agent of PV88, Worlee company production；
Moisten accelerating agent：701B, Ningbo South-sea Chemical Co., Ltd.'s product；
Anti-yellowing styrax：Commercially available technical grade product；
Pigment：R902, the rutile type titanium white of E.I.Du Pont Company's production；
Filler：W-44HB, Guizhou China add the barium sulfate of fine mining industry Co., Ltd production.
It after each group of parts by weight is distributed material, puts into high-speed mixer and mixes 3min, turn through Screw Extrusion machine host
Fast 45Hz, feeding rotating speed 22Hz, the broken mixing of melting extrusion tabletting under the process conditions that 120 DEG C of temperature；Then it is milled again through ACM
Machine grinding classification is 45Hz by main mill rotating speed, and pair mill rotating speed is 29Hz, and feeding rotating speed is 22Hz, and sieve is under the conditions of 180 purpose
Grinding obtains weather resistant low brightness paint powder；
The construction method of the weather resistant low brightness paint powder is：Using conventional electrostatic spraying device, spray voltage 70kv dusts
Air pressure 0.1Mpa, application under the execution conditions of spray distance 20mm are 205 DEG C in temperature, and the time is under the condition of cure of 12min
Solidification obtains film, and the performance test results of film are as shown in table 1.
The performance test methods and evaluation criterion of film are as follows：
Gloss is detected by GB/T 9754-2007 standards；Numerical value is lower, and extinction performance is stronger；
The impact strength of film is with reference to standard GB/T/T 1732；
Pencil hardness is with reference to standard GB/T/T 6739-2006；
Adhesive force is with reference to standard GB/T/T 1720-1979；
Table 1：The various performance indicators of film obtained by embodiment 1-3
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art
It makes various modifications or additions to the described embodiments or substitutes by a similar method, without departing from invention
Design or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (5)
1. a kind of weather resistant low brightness paint powder, it is characterised in that：Including following components by weight percent raw material：
2. a kind of weather resistant low brightness paint powder according to claim 1, it is characterised in that：Including following components by weight percent original
Material：
3. a kind of weather resistant low brightness paint powder according to claim 1, it is characterised in that：The low acid value polyester tree
Fat, acid value are 27~37mgKOH/g, preferred acid number 32mgKOH/g；The high acid value solid propenoic acid resin, acid value are
140~160mgKOH/g, preferred acid number 150mgKOH/g.
4. a kind of weather resistant low brightness paint powder according to claim 1, it is characterised in that：The weather resistant low brightness paint powder
Preparation flow includes the following steps：
After each group of weather resistant low brightness paint powder is distributed material, puts into high-speed mixer and mix 3min, through screw extruder
Engine speed 45Hz, feeding rotating speed 22Hz, the broken mixing of melting extrusion tabletting under the process conditions that 115 DEG C~125 DEG C of temperature；It connects
It to grind through ACM flour mills again and be classified, be 45Hz by main mill rotating speed, pair mill rotating speed is 29Hz, and feeding rotating speed is 22Hz, and sieve is
Grinding obtains weather resistant low brightness paint powder under the conditions of 180 purposes.
5. a kind of weather resistant low brightness paint powder according to claim 1, it is characterised in that：The weather resistant low brightness paint powder
Construction method is：Using conventional electrostatic spraying device, 60~80kv of spray voltage, dust 0.05~0.2Mpa of air pressure, spraying away from
Application under execution conditions from 15~30mm is 200~210 DEG C in temperature, cures under the condition of cure that the time is 10~15min
Obtain film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118887.2A CN108285673B (en) | 2018-02-06 | 2018-02-06 | Weather-resistant low-gloss powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118887.2A CN108285673B (en) | 2018-02-06 | 2018-02-06 | Weather-resistant low-gloss powder coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108285673A true CN108285673A (en) | 2018-07-17 |
| CN108285673B CN108285673B (en) | 2020-04-14 |
Family
ID=62832727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810118887.2A Active CN108285673B (en) | 2018-02-06 | 2018-02-06 | Weather-resistant low-gloss powder coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN108285673B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109337528A (en) * | 2018-09-04 | 2019-02-15 | 广州擎天材料科技有限公司 | A kind of open air low brightness paint powder and preparation method thereof |
| CN112175471A (en) * | 2020-09-30 | 2021-01-05 | 安徽省华安进出口有限公司 | Polyacrylic resin/TGIC system extinction powder coating containing anhydride group functionality |
| CN112724801A (en) * | 2020-12-29 | 2021-04-30 | 江南载福粉末涂料（张家港）有限公司 | Matte powder coating for wheel hub and preparation method thereof |
| CN113748180A (en) * | 2019-12-27 | 2021-12-03 | 株式会社有泽制作所 | Adhesive tape |
| CN116285636A (en) * | 2023-03-28 | 2023-06-23 | 安徽神剑新材料股份有限公司 | Low-gloss polyurethane powder coating and preparation method thereof |
| CN116426212A (en) * | 2023-04-20 | 2023-07-14 | 安徽国风新材料股份有限公司 | Matte polyimide coating and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109337528A (en) * | 2018-09-04 | 2019-02-15 | 广州擎天材料科技有限公司 | A kind of open air low brightness paint powder and preparation method thereof |
| CN113748180A (en) * | 2019-12-27 | 2021-12-03 | 株式会社有泽制作所 | Adhesive tape |
| CN113748180B (en) * | 2019-12-27 | 2022-07-15 | 株式会社有泽制作所 | Adhesive tape |
| CN112175471A (en) * | 2020-09-30 | 2021-01-05 | 安徽省华安进出口有限公司 | Polyacrylic resin/TGIC system extinction powder coating containing anhydride group functionality |
| CN112175471B (en) * | 2020-09-30 | 2021-11-23 | 安徽省华安进出口有限公司 | Polyacrylic resin/TGIC system extinction powder coating containing anhydride group functionality |
| CN112724801A (en) * | 2020-12-29 | 2021-04-30 | 江南载福粉末涂料（张家港）有限公司 | Matte powder coating for wheel hub and preparation method thereof |
| CN116285636A (en) * | 2023-03-28 | 2023-06-23 | 安徽神剑新材料股份有限公司 | Low-gloss polyurethane powder coating and preparation method thereof |
| CN116285636B (en) * | 2023-03-28 | 2024-05-07 | 安徽神剑新材料股份有限公司 | Low-gloss polyurethane powder coating and preparation method thereof |
| CN116426212A (en) * | 2023-04-20 | 2023-07-14 | 安徽国风新材料股份有限公司 | Matte polyimide coating and preparation method thereof |
| CN116426212B (en) * | 2023-04-20 | 2024-06-11 | 安徽国风新材料股份有限公司 | Matte polyimide coating and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN108285673B (en) | 2020-04-14 |
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