CN106398482A - Low-temperature curing hammer tone powder coating and preparation method thereof - Google Patents
Low-temperature curing hammer tone powder coating and preparation method thereof Download PDFInfo
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- CN106398482A CN106398482A CN201610766549.0A CN201610766549A CN106398482A CN 106398482 A CN106398482 A CN 106398482A CN 201610766549 A CN201610766549 A CN 201610766549A CN 106398482 A CN106398482 A CN 106398482A
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- low
- parts
- temperature setting
- powdery paints
- mallear stria
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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
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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 low-temperature curing hammer tone powder coating, which is prepared from the following ingredients in parts by mass: 25-40 parts of polyester resin, 25-40 parts of epoxy resin, 10-25 parts of titanium pigment, 10-20 parts of a padding, 0.1-0.3 part of a hammer tone agent, 0-5 parts of a pigment and 0.5-2.0 parts of a low-temperature curing accelerant. The polyester resin and the low-temperature curing accelerant are matched for use, so that the curing temperature of the powder coating is 120-140 DEG C, and the curing time of the powder coating is 20min; the hammer tone agent is a modified cellaburate polymer; the mass ratio of polyester resin to epoxy resin is 1:1. The invention also provides a preparation method of the powder coating. The low-temperature curing powder coating prepared by the method has the advantages that the application range of the powder coating is enlarged to include heat-sensitive materials; the application range is expanded, and the powder coating has a hammer tone effect and favorable artistic quality and conforms to the modern aesthetic appreciation demand.
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 the advantages that environmental friendliness, low production cost and simple production process, and range of application is increasingly
Greatly.Conventional thermosetting and thermoplastic powder coating, typically toast in 180 DEG C of temperatures above, solidification 20min about, 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 too high it is impossible to promote.Additionally, with the raising of people's living standard, the requirement to quality of life also improves therewith；Mallear stria
The powdery paints of effect can cover the defect of base material, need closer to popular in appearance simultaneously.Therefore, mallear stria powder is applied
Material apply on multiple base materials be also current powder industry focus.
Content of the invention
For above-mentioned deficiency of the prior art, the invention provides a kind of solidification temperature reduces, increases the painting of mallear stria powder
Low-temperature setting mallear stria powdery paints of material range of application and preparation method thereof.
One of for achieving the above object provide a kind of low-temperature setting mallear stria powdery paints, present invention employs following technical side
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, described polyester resin contains the unreacted anhydride group for improving its reactivity, described polyester
(i.e. viscosity at 200 DEG C for the described polyester resin is 1.5～2.5Pa to 200 DEG C of the viscosity of resin as little as 1.5～2.5Pa s@
S), can be with epoxy resin in 160～170 DEG C of low-temperature settings.
Preferably, the mass fraction of described polyester resin is 30 parts.
Preferably, described low-temperature setting accelerator adopts 2- benzylimidazoline.
Preferably, described polyester resin and described low-temperature setting accelerator use cooperatively the solidification temperature realizing powdery paints
For 120 DEG C～140 DEG C, hardening time is 20min.
Further, the mass fraction of described low-temperature setting accelerator is 1 part, obtains the solidification temperature 130 of powdery paints
DEG C, hardening time is 20min.
Preferably, described mallear stria agent is modified cellaburate polymer, and the mass fraction of mallear stria agent is 0.2 part, coating
Visual effect for little mallear stria.
Preferably, the epoxide equivalent of described epoxy resin is 700～840g/eq, and softening point is 88～93 DEG C.
Preferably, the mass ratio 1 of described 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 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 accelerator are weighed, and premix 6
It is placed in stirring in high-speed mixer after～9min；
S2, by S1 step powder add extruder melt extrude, tabletting, wherein the temperature in extruder I area be 90～
100 DEG C, II area's temperature is 95～105 DEG C；
S3, the sheet stock in step S2 is added flour mill pulverizing, the wherein main mill rotating speed 45～50Hz of flour mill, secondary mill turns
Fast 20～35Hz, screen cloth is 180～200 mesh；
S4, by the electrostatic powder spraying obtaining in step S3 to base material, with 120 DEG C～140 DEG C solidification 20min.
The beneficial effects of the present invention is：
1) compared with prior art, the invention provides a kind of low temperature that solidification temperature is reduced to 120 DEG C～140 DEG C
Cured powder paint, makes powdery paints range of application expand some thermo-sensitive materials to, extends the range of application of powdery paints；And
And this powdery paints has hammer tone effect, there is good artistry, meet the aesthetic requirement in modern times.
2) preparation method of the present invention is simple, is suitable to large-scale production application.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the present invention is clearly and completely described.Following reality
Apply example to be only used for clearly technical scheme being described, and can not be limited the scope of the invention with this.
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 accelerator.
As shown in the table, in preferred embodiment, each component is all 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 accelerator | 0 | 1 | 1 | 1 | 1 |
Wherein, described polyester resin contains the unreacted anhydride group (in polyester resin for improving its reactivity
Containing unreacted, unnecessary anhydride group, therefore polyester resin just has higher reactivity), described polyester resin
200 DEG C of viscosity as little as 1.5～2.5Pa s@, that is, the viscosity at 200 DEG C is 1.5～2.5Pa s, can exist with epoxy resin
160～170 DEG C of low-temperature settings.Low-temperature setting accelerator adopts 2- benzylimidazoline.
Described polyester resin is 120 DEG C with described low-temperature setting accelerator with the use of the solidification temperature realizing powdery paints
～140 DEG C, hardening time is 20min.
As one kind preferred embodiment, the mass fraction of low-temperature setting accelerator is 1 part, obtains consolidating of powdery paints
Change 130 DEG C of temperature, hardening time is 20min.
Mallear stria agent is the extremely low modified cellaburate polymer of surface tension, during powder melts, so that pigment is sent out
Raw circumnutation, lines up shallow disc shape or dendritic shellfish Nader's 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
Found with embodiment 2 contrast by the embodiment 1 being not added with low-temperature setting accelerator, add low-temperature setting accelerator
Powdery paints can be made to solidify at a lower temperature, reduce solidification temperature.
| Embodiment | Range estimation hammer tone effect |
| Embodiment 3 | Big mallear stria |
| Embodiment 4 | Little mallear stria |
| Embodiment 5 | Tiny mallear stria |
As upper table, show that the addition of mallear stria agent affects the mallear stria size of coating, with the increase of mallear stria dosage, coating
Mallear stria diminishes, 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
Amount is related with size to the hammer tone effect requiring.
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 accelerator are weighed, and premix 6
It is placed in stirring in high-speed mixer after～9min；
S2, by S1 step powder add extruder melt extrude, tabletting, wherein the temperature in extruder I area be 90～
100 DEG C, II area's temperature is 95～105 DEG C；
S3, the sheet stock in step S2 is added flour mill pulverizing, the wherein main mill rotating speed 45～50Hz of flour mill, secondary mill turns
Fast 20～35Hz, screen cloth is 180～200 mesh；
S4, by the electrostatic powder spraying obtaining 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 the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, on the premise of without departing from the technology of the present invention principle, some improvement can also be made and deform, these improve and deform
Also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of low-temperature setting mallear stria powdery paints is it is characterised 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, 0.1～0.3 part of mallear stria agent, pigment 0
～5 parts, 0.5～2.0 part of low-temperature setting accelerator.
2. a kind of low-temperature setting mallear stria powdery paints according to claim 1 it is characterised in that：Described polyester resin contains
For improving the unreacted anhydride group of its reactivity, viscosity at 200 DEG C for the described polyester resin be 1.5～
2.5Pa s, can be with epoxy resin in 160～170 DEG C of low-temperature settings.
3. a kind of low-temperature setting mallear stria powdery paints according to claim 1 it is characterised in that：The matter of described polyester resin
Amount number is 30 parts.
4. a kind of low-temperature setting mallear stria powdery paints according to claim 1 it is characterised in that：Described low-temperature setting promotes
Agent adopts 2- benzylimidazoline.
5. a kind of low-temperature setting mallear stria powdery paints according to claim 1 it is characterised in that：Described polyester resin and institute
State low-temperature setting accelerator and be 120 DEG C～140 DEG C with the use of the solidification temperature realizing powdery paints, hardening time is 20min.
6. a kind of low-temperature setting mallear stria powdery paints according to claim 5 it is characterised in that：Described low-temperature setting promotes
The mass fraction of agent is 1 part, obtains 130 DEG C of the solidification temperature of powdery paints, and hardening time is 20min.
7. a kind of low-temperature setting mallear stria powdery paints according to claim 1 it is characterised in that：Described mallear stria agent is modification
Cellaburate polymer, the mass fraction of mallear stria agent is 0.2 part.
8. a kind of low-temperature setting mallear stria powdery paints according to claim 1 it is characterised in that：The ring of described epoxy resin
Oxygen equivalent is 700～840g/eq, and softening point is 88～93 DEG C.
9. a kind of low-temperature setting mallear stria powdery paints according to claim 1 it is characterised in that：Described polyester resin and ring
The mass ratio 1 of oxygen tree fat:1.
10. the preparation method of the low-temperature setting mallear stria powdery paints as described in a kind of any one as claim 1 to 9, its feature exists
In comprising the 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, 0.1～0.3 part of mallear stria agent, 0～5 part of pigment, 0.5～2.0 part of low-temperature setting accelerator weighed, premix 6～
It is placed in stirring in high-speed mixer after 9min；
S2, by S1 step powder add extruder melt extrude, tabletting, wherein the temperature in extruder I area be 90～100
DEG C, II area's temperature is 95～105 DEG C；
S3, the sheet stock in step S2 is added flour mill pulverizing, the wherein main mill rotating speed 45～50Hz of flour mill, secondary mill rotating speed 20
～35Hz, screen cloth is 180～200 mesh；
S4, by the electrostatic powder spraying obtaining 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108165144A (en) * | 2017-12-08 | 2018-06-15 | 安徽美佳新材料股份有限公司 | Mallear stria powdery paints 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108165144A (en) * | 2017-12-08 | 2018-06-15 | 安徽美佳新材料股份有限公司 | Mallear stria powdery paints 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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| Publication number | Publication date |
|---|---|
| CN106398482B (en) | 2018-08-28 |
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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 |