CN106398482B - A kind of low-temperature setting mallear stria powdery paints and preparation method thereof - Google Patents
A kind of low-temperature setting mallear stria powdery paints and preparation method thereof Download PDFInfo
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- CN106398482B CN106398482B CN201610766549.0A CN201610766549A CN106398482B CN 106398482 B CN106398482 B CN 106398482B CN 201610766549 A CN201610766549 A CN 201610766549A CN 106398482 B CN106398482 B CN 106398482B
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- low
- temperature setting
- powdery paints
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- mallear stria
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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
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- 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
- C09D5/28—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for wrinkle, crackle, orange-peel, or similar decorative effects
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention discloses a kind of low-temperature setting mallear stria powdery paints, in terms of mass fraction, including following component：25~40 parts of polyester resin, 25~40 parts of epoxy resin, 10~25 parts of titanium dioxide, 10~20 parts of filler, 0.1~0.3 part of mallear stria agent, 0~5 part of pigment, 0.5~2.0 part of low-temperature setting accelerating agent.Polyester resin is 120 DEG C~140 DEG C with the use of the solidification temperature for realizing powdery paints with low-temperature setting accelerating agent, hardening time 20min；Wherein, mallear stria agent is modified cellaburate polymer；The mass ratio 1 of polyester resin and epoxy resin:1.The present invention also provides the preparation methods of above-mentioned coating.Low temperature cured powder coating prepared by the present invention can make powdery paints application range be expanded to some thermo-sensitive materials；Make the powdery paints that there is hammer tone effect while having expanded application range, have good artistry, meets modern aesthetic requirement.
Description
Technical field
The present invention relates to a kind of powdery paints more particularly to a kind of low-temperature setting mallear stria powdery paints.
Background technology
Powdery paints has many advantages, such as that environmental-friendly, production cost is low and simple production process, and application range is increasingly
Greatly.Common thermosetting property and thermoplastic powder coating are generally toasted in 180 DEG C of temperatures above, and solidification 20min or so is so high
Solidification temperature limit powdery paints and can be only applied to the resistant substrates such as metal；In heatsensitive substrates field, due to its solidification
Temperature is too high, can not promote.In addition, as the improvement of people's living standards, the requirement to quality of life also improves therewith；Mallear stria
The powdery paints of effect can cover the defect of base material, while be needed in appearance closer to masses.Therefore, mallear stria powder is applied
Material is applied on a variety of base materials and the hot spot of current powder industry.
Invention content
Deficiency in for the above-mentioned prior art, the present invention provides a kind of solidification temperatures to reduce, increases mallear stria powder applies
Expect the low-temperature setting mallear stria powdery paints and preparation method thereof of application range.
A kind of low-temperature setting mallear stria powdery paints is provided one of to achieve the above object, and present invention employs following technical sides
Case：
A kind of low-temperature setting mallear stria powdery paints, in terms of mass fraction, including following component：25~40 parts of polyester resin,
25~40 parts of epoxy resin, 10~25 parts of titanium dioxide, 10~20 parts of filler, 0.1~0.3 part of mallear stria agent, 0~5 part of pigment, low temperature
0.5~2.0 part of curing accelerator.
Preferably, the polyester resin contains the unreacted anhydride group for being useful for improving its reactivity, the polyester
Down to 200 DEG C of 1.5~2.5Pas@, (viscosity of the i.e. described polyester resin at 200 DEG C is 1.5~2.5Pa to the viscosity of resin
It s), can be with epoxy resin in 160~170 DEG C of low-temperature settings.
Preferably, the mass fraction of the polyester resin is 30 parts.
Preferably, the low-temperature setting accelerating agent uses 2- benzylimidazolines.
Preferably, the polyester resin is used cooperatively the solidification temperature for realizing powdery paints with the low-temperature setting accelerating agent
It is 120 DEG C~140 DEG C, hardening time 20min.
Further, the mass fraction of the low-temperature setting accelerating agent is 1 part, obtains the solidification temperature 130 of powdery paints
DEG C, hardening time 20min.
Preferably, the mallear stria agent is modified cellaburate polymer, and the mass fraction of mallear stria agent is 0.2 part, coating
For the visual effect of small mallear stria.
Preferably, the epoxide equivalent of the epoxy resin is 700~840g/eq, and softening point is 88~93 DEG C.
Preferably, the mass ratio 1 of the polyester resin and epoxy resin:1.
The second object of the present invention is to provide a kind of preparation method of above-mentioned low-temperature setting mallear stria powdery paints, including it is as follows
Step：
S1, in terms of mass fraction, by 25~40 parts of polyester resin, 25~40 parts of epoxy resin, 10~25 parts of titanium dioxide, fill out
10~20 parts of material, 0.1~0.3 part of mallear stria agent, 0~5 part of pigment, 0.5~2.0 part of low-temperature setting accelerating agent are weighed, premix 6
~9min is placed in high-speed mixer and stirs；
S2, the powder in S1 steps is added to extruder melting extrusion, tabletting, wherein the temperature in Ith area of extruder be 90~
100 DEG C, II area's temperature is 95~105 DEG C；
S3, the sheet stock in step S2 is added to flour mill milling, wherein 45~50Hz of main mill rotating speed of flour mill, pair mill turns
20~35Hz of speed, sieve are 180~200 mesh；
S4, by the electrostatic powder spraying obtained in step S3 to base material, with 120 DEG C~140 DEG C solidification 20min.
The beneficial effects of the present invention are：
1) compared with prior art, the present invention provides a kind of being reduced to solidification temperature 120 DEG C~140 DEG C of low temperature
Cured powder paint makes powdery paints application range be expanded to some thermo-sensitive materials, extends the application range of powdery paints；And
And the powdery paints has hammer tone effect, has good artistry, meets modern aesthetic requirement.
2) preparation method of the present invention is simple, is suitable for large-scale production application.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, the technical solution in the present invention is clearly and completely described.Following reality
It applies example to be only used for clearly illustrating technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
A kind of low-temperature setting mallear stria powdery paints
In terms of mass fraction, including following component：25~40 parts of polyester resin, 25~40 parts of epoxy resin, titanium dioxide 10
~25 parts, 10~20 parts of filler, 0.1~0.3 part of mallear stria agent, 0~5 part of pigment, 0.5~2.0 part of low-temperature setting accelerating agent.
As shown in the table, in preferred embodiment each component in terms of mass fraction.
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Polyester resin | 30 | 30 | 30 | 30 | 30 |
| Epoxy resin | 30 | 30 | 30 | 30 | 30 |
| Titanium dioxide | 20 | 20 | 20 | 20 | 20 |
| Filler | 20 | 20 | 20 | 20 | 20 |
| Mallear stria agent | 0.2 | 0.2 | 0.1 | 0.2 | 0.3 |
| Pigment | 1 | 1 | 1 | 1 | 1 |
| Low-temperature setting accelerating agent | 0 | 1 | 1 | 1 | 1 |
Wherein, the polyester resin contains the unreacted anhydride group for being useful for improving its reactivity (in polyester resin
Containing unreacted, extra anhydride group, therefore polyester resin just has higher reactivity), the polyester resin
Viscosity is 1.5~2.5Pas down to 200 DEG C of 1.5~2.5Pas@, the i.e. viscosity at 200 DEG C, can be existed with epoxy resin
160~170 DEG C of low-temperature settings.Low-temperature setting accelerating agent uses 2- benzylimidazolines.
The polyester resin is 120 DEG C with the use of the solidification temperature for realizing powdery paints with the low-temperature setting accelerating agent
~140 DEG C, hardening time 20min.
As a preferred embodiment, the mass fraction of low-temperature setting accelerating agent is 1 part, consolidating for powdery paints is obtained
Change 130 DEG C of temperature, hardening time 20min.
Mallear stria agent is the extremely low modification cellaburate polymer of surface tension makes pigment send out during powder melts
Raw circumnutation, lines up shallow disc shape or dendritic shellfish Nader vortex, in appearance as hammer tone effect.
The epoxide equivalent of epoxy resin is 700~840g/eq, and softening point is 88~93 DEG C.And polyester resin and asphalt mixtures modified by epoxy resin
The mass ratio 1 of fat:1.
Powdery paints in embodiment is tested
Embodiment 1 by being not added with low-temperature setting accelerating agent is found with the comparison of embodiment 2, and low-temperature setting accelerating agent is added
Powdery paints can be made to cure at a lower temperature, reduce solidification temperature.
| Embodiment | Estimate hammer tone effect |
| Embodiment 3 | Big mallear stria |
| Embodiment 4 | Small mallear stria |
| Embodiment 5 | Tiny mallear stria |
Such as upper table, show that the additive amount of mallear stria agent influences the mallear stria size of coating, with the increase of mallear stria dosage, coating
Mallear stria becomes smaller, and when mallear stria dosage is excessive, coating surface can tend to plane, can't see hammer tone effect.Therefore, the addition of mallear stria agent
It measures related with size to desired hammer tone effect.
The preparation method of low-temperature setting mallear stria powdery paints in above-described embodiment
Preparation method comprises the steps of：
S1, in terms of mass fraction, by 25~40 parts of polyester resin, 25~40 parts of epoxy resin, 10~25 parts of titanium dioxide, fill out
10~20 parts of material, 0.1~0.3 part of mallear stria agent, 0~5 part of pigment, 0.5~2.0 part of low-temperature setting accelerating agent are weighed, premix 6
~9min is placed in high-speed mixer and stirs；
S2, the powder in S1 steps is added to extruder melting extrusion, tabletting, wherein the temperature in Ith area of extruder be 90~
100 DEG C, II area's temperature is 95~105 DEG C；
S3, the sheet stock in step S2 is added to flour mill milling, wherein 45~50Hz of main mill rotating speed of flour mill, pair mill turns
20~35Hz of speed, sieve are 180~200 mesh；
S4, by the electrostatic powder spraying obtained in step S3 to base material, with 120 DEG C~140 DEG C solidification 20min.
Wherein, for embodiment 3 to 5, the solidification temperature in step S4 is 130 DEG C.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of low-temperature setting mallear stria powdery paints, which is characterized in that in terms of mass fraction, including following component：Polyester resin
25~40 parts, 25~40 parts of epoxy resin, 10~25 parts of titanium dioxide, 10~20 parts of filler, 0.1~0.2 part of mallear stria agent, pigment 0
~5 parts, 0.5~2.0 part of low-temperature setting accelerating agent；
The polyester resin contains the unreacted anhydride group for being useful for improving its reactivity, and the polyester resin is at 200 DEG C
Under viscosity be 1.5~2.5Pas, can be with epoxy resin in 160~170 DEG C of low-temperature settings.
2. a kind of low-temperature setting mallear stria powdery paints according to claim 1, it is characterised in that：The matter of the polyester resin
It is 30 parts to measure number.
3. a kind of low-temperature setting mallear stria powdery paints according to claim 1, it is characterised in that：The low-temperature setting promotes
Agent uses 2- benzylimidazolines.
4. a kind of low-temperature setting mallear stria powdery paints according to claim 1, it is characterised in that：The polyester resin and institute
It is 120 DEG C~140 DEG C that low-temperature setting accelerating agent, which is stated, with the use of the solidification temperature for realizing powdery paints, hardening time 20min.
5. a kind of low-temperature setting mallear stria powdery paints according to claim 4, it is characterised in that：The low-temperature setting promotes
The mass fraction of agent is 1 part, obtains 130 DEG C of the solidification temperature of powdery paints, hardening time 20min.
6. a kind of low-temperature setting mallear stria powdery paints according to claim 1, it is characterised in that：The mallear stria agent is to be modified
The mass fraction of cellaburate polymer, mallear stria agent is 0.2 part.
7. a kind of low-temperature setting mallear stria powdery paints according to claim 1, it is characterised in that：The ring of the epoxy resin
Oxygen equivalent is 700~840g/eq, and softening point is 88~93 DEG C.
8. a kind of low-temperature setting mallear stria powdery paints according to claim 1, it is characterised in that：The polyester resin and ring
The mass ratio 1 of oxygen resin:1.
9. a kind of preparation method of such as claim 1 to 8 any one of them low-temperature setting mallear stria powdery paints, it is characterised in that
Include the following steps：
S1, in terms of mass fraction, by 25~40 parts of polyester resin, 25~40 parts of epoxy resin, 10~25 parts of titanium dioxide, filler 10
~20 parts .2 parts of mallear stria agent 0 .1~0,0~5 part of pigment, 0.5~2.0 part of low-temperature setting accelerating agent weigh, premix 6~
9min is placed in high-speed mixer and stirs；
S2, the powder in S1 steps is added to extruder melting extrusion, tabletting, the wherein temperature in Ith area of extruder is 90~100
DEG C, II area's temperature is 95~105 DEG C；
S3, the sheet stock in step S2 is added to flour mill milling, wherein 45~50Hz of main mill rotating speed of flour mill, pair mill rotating speed 20
~35Hz, sieve are 180~200 mesh；
S4, by the electrostatic powder spraying obtained in step S3 to base material, with 120 DEG C~140 DEG C solidification 20min.
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| CN201610766549.0A CN106398482B (en) | 2016-08-30 | 2016-08-30 | A kind of low-temperature setting mallear stria powdery paints and preparation method thereof |
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| CN201610766549.0A CN106398482B (en) | 2016-08-30 | 2016-08-30 | A kind of low-temperature setting mallear stria powdery paints and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106675344A (en) * | 2016-12-09 | 2017-05-17 | 安徽美佳新材料股份有限公司 | Tiny hammer streak powder coating and preparation method thereof |
| CN108165144B (en) * | 2017-12-08 | 2020-10-27 | 安徽美佳新材料股份有限公司 | Hammer powder coating and preparation method thereof |
| CN109266185A (en) * | 2018-10-16 | 2019-01-25 | 上海国丽粉体涂料有限公司 | A kind of powdery paints and application thereof |
| CN109651937A (en) * | 2018-12-12 | 2019-04-19 | 东莞市爱粤金属粉末有限公司 | Powdery paints and preparation method thereof |
| CN111320913A (en) * | 2018-12-13 | 2020-06-23 | 安徽美佳新材料股份有限公司 | Preparation method of powder coating |
| CN114836108A (en) * | 2021-02-02 | 2022-08-02 | 中山市董泽粉末涂料有限公司 | Thermosetting powder coating coated on synthetic material product and preparation method thereof |
| CN115124904A (en) * | 2022-07-18 | 2022-09-30 | 绍兴市英纳粉末涂料有限公司 | Water wave plastic powder for mechanical parts and production process thereof |
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| JPS61151274A (en) * | 1984-12-25 | 1986-07-09 | Sumitomo Bakelite Co Ltd | Powder coating |
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Denomination of invention: The invention relates to a low temperature curing hammer grain powder coating and a preparation method thereof Effective date of registration: 20210924 Granted publication date: 20180828 Pledgee: China Construction Bank Corporation Fanchang sub branch Pledgor: ANHUI MEIJIA NEW MATERIAL Co.,Ltd. Registration number: Y2021980009733 |
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