CN112126324A - Sand grain powder coating and preparation method thereof - Google Patents
Sand grain powder coating and preparation method thereof Download PDFInfo
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- CN112126324A CN112126324A CN202011037928.9A CN202011037928A CN112126324A CN 112126324 A CN112126324 A CN 112126324A CN 202011037928 A CN202011037928 A CN 202011037928A CN 112126324 A CN112126324 A CN 112126324A
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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
- 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
- C09D5/032—Powdery paints characterised by a special effect of the produced film, e.g. wrinkle, pearlescence, matt finish
-
- 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
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
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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 sand grain powder coating which comprises the following raw materials in parts by weight: 70-85 parts of polyester resin, 20-30 parts of polyurea microspheres, 4-9 parts of cross-linking agent, 2-4 parts of flatting agent, 3-8 parts of curing agent, 3-7 parts of barium sulfate and 1-2 parts of benzoin. The invention also provides a preparation method of the sand grain powder coating. The sand grain powder coating provided by the invention has a good frosted hand feeling.
Description
Technical Field
The invention relates to the technical field of powder coatings, in particular to a sand grain powder coating and a preparation method thereof.
Background
Along with the rapid development of the economy of China and the improvement of the living standard of people, the requirements of people on the quality and the color diversity of articles in daily life are higher and higher, and the iron and aluminum doors and windows have the heat transfer printing technology for simulating the pattern colors (such as wood grains, marble grains and other patterns) in the nature, so that the iron and aluminum doors and windows enrich the living colors of people and have the fireproof effect. In the related art, the planar powder coating can basically meet the requirements of processing performance, but the planar powder coating does not have frosted hand feeling.
Therefore, there is a need for a sand-grained powder coating and a preparation method thereof based on the prior art to solve the above problems.
Disclosure of Invention
In view of the above, the invention provides a graining powder coating and a preparation method thereof, which have better frosted hand feeling.
The invention provides a sand grain powder coating which comprises the following raw materials in parts by weight:
70-85 parts of polyester resin
20-30 parts of polyurea microspheres
4-9 parts of cross-linking agent
2-4 parts of flatting agent
3-8 parts of curing agent
3-7 parts of barium sulfate
1-2 parts of benzoin.
Preferably, the cross-linking agent is one or more of tert-butyl peroxyisopropyl carbonate, 1-bis (tert-butyl peroxy) -3,3, 5-trimethylcyclohexane, tert-butyl peroxy2-ethylhexyl carbonate and 1, 1-bis (tert-amyl peroxy) -3,3, 5-trimethylcyclohexane.
Preferably, the leveling agent is one of alkyl modified organic siloxane, polydimethylsiloxane and polyether polyester modified organic siloxane.
Preferably, the curing agent is TGIC.
Preferably, the polyurea microspheres are nano-sized or micro-sized polymeric spheres.
The invention also provides a preparation method of the sand grain powder coating, which comprises the following steps:
uniformly mixing the raw materials, and crushing to 70-80 meshes;
adding the mixed material into a double-screw extruder, wherein the rotating speed of a screw is 150-;
adding the melt extrusion into a tablet press, and cooling in a nitrogen atmosphere after tabletting and forming;
and adding the tablets into a crusher for crushing, grinding and crushing the crushed tablets by a grinder, and sieving the crushed tablets by a sieve of 160-mesh and 200-mesh to obtain the powder coating.
The invention has the following beneficial effects:
(1) the sand-textured polyester weather-resistant powder coating does not contain harmful heavy metals, and is an environment-friendly powder coating;
(2) the sand textured polyester weather-resistant powder coating has higher bending resistance, impact resistance, adhesive force and other properties, and can meet the requirements of people on sand textured coatings with frosted handfeel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
The invention provides a sand grain powder coating which comprises the following raw materials in parts by weight:
70-85 parts of polyester resin
20-30 parts of polyurea microspheres
4-9 parts of cross-linking agent
2-4 parts of flatting agent
3-8 parts of curing agent
3-7 parts of barium sulfate
1-2 parts of benzoin.
Preferably, the cross-linking agent is one or more of tert-butyl peroxyisopropyl carbonate, 1-bis (tert-butyl peroxy) -3,3, 5-trimethylcyclohexane, tert-butyl peroxy2-ethylhexyl carbonate and 1, 1-bis (tert-amyl peroxy) -3,3, 5-trimethylcyclohexane. The leveling agent is one of alkyl modified organic siloxane, polydimethylsiloxane and polyether polyester modified organic siloxane. The curing agent is TGIC.
The polyurea microspheres are nano-scale or micron-scale polymeric spheres, and a microporous structure can be formed on the surface of the powder coating through crosslinking of the polyurea microspheres and the polyester resin, so that frosted hand feeling is increased, and the change of the hand feeling of the powder coating can be realized by adjusting the content of the polyurea microspheres, so that the hand feeling requirements of different applicable people are met.
The invention also provides a preparation method of the sand grain powder coating, which comprises the following steps:
uniformly mixing the raw materials, and crushing to 70-80 meshes;
adding the mixed material into a double-screw extruder, wherein the rotating speed of a screw is 150-;
adding the melt extrusion into a tablet press, and cooling in a nitrogen atmosphere after tabletting and forming;
and adding the tablets into a crusher for crushing, grinding and crushing the crushed tablets by a grinder, and sieving the crushed tablets by a sieve of 160-mesh and 200-mesh to obtain the powder coating.
Detailed description of the preferred embodiment 1
A sand grain powder coating comprises the following raw materials in parts by weight:
70 parts of polyester resin
30 portions of polyurea microspheres
4 portions of cross-linking agent
Leveling agent 2 parts
8 portions of curing agent
Barium sulfate 7 parts
1 part of benzoin.
Preferably, the cross-linking agent is tert-butyl peroxyisopropyl carbonate; the leveling agent is alkyl modified organic siloxane; the curing agent is TGIC.
The invention also provides a preparation method of the sand grain powder coating, which comprises the following steps:
uniformly mixing the raw materials, and crushing to 70 meshes;
adding the mixed materials into a double-screw extruder, wherein the rotating speed of screws is 150r/min, the temperature of a machine cavity is 100 ℃, the temperature of a machine head is 120 ℃, and performing melt extrusion to obtain an extruded material;
adding the melt extrusion into a tablet press, and cooling in a nitrogen atmosphere after tabletting and forming;
and adding the pressed sheets into a crusher for crushing, grinding and crushing the crushed pressed sheets by a grinder, and sieving the crushed pressed sheets by a 160-mesh sieve to obtain the powder coating.
Specific example 2
A sand grain powder coating comprises the following raw materials in parts by weight:
polyester resin 80 parts
Polyurea microspheres 25 parts
Crosslinking agent 7 parts
Leveling agent 3 parts
6 portions of curing agent
5 portions of barium sulfate
1.5 parts of benzoin.
Preferably, the cross-linking agent adopts 1-bis (tert-butyl peroxide) -3,3, 5-trimethylcyclohexane; the flatting agent is polydimethylsiloxane; the curing agent is TGIC.
The invention also provides a preparation method of the sand grain powder coating, which comprises the following steps:
uniformly mixing the raw materials, and crushing to 75 meshes;
adding the mixed materials into a double-screw extruder, wherein the rotating speed of a screw is 175r/min, the temperature of a machine cavity is 115 ℃, the temperature of a machine head is 140 ℃, and performing melt extrusion to obtain an extrudate;
adding the melt extrusion into a tablet press, and cooling in a nitrogen atmosphere after tabletting and forming;
and adding the pressed sheets into a crusher for crushing, grinding and crushing the crushed pressed sheets by a grinder, and sieving the crushed pressed sheets by a 180-mesh sieve to obtain the powder coating.
Specific example 3
A sand grain powder coating comprises the following raw materials in parts by weight:
85 parts of polyester resin
Polyurea microspheres 20 parts
9 portions of cross-linking agent
Leveling agent 4 parts
3 parts of curing agent
Barium sulfate 3 parts
And 2 parts of benzoin.
Preferably, the cross-linking agent adopts 1, 1-bis (tert-amyl peroxy) -3,3, 5-trimethylcyclohexane; the leveling agent is polyether polyester modified organic siloxane; the curing agent is TGIC.
The invention also provides a preparation method of the sand grain powder coating, which comprises the following steps:
uniformly mixing the raw materials, and crushing to 80 meshes;
adding the mixed materials into a double-screw extruder, wherein the rotating speed of screws is 200r/min, the temperature of a machine cavity is 120 ℃, the temperature of a machine head is 150 ℃, and performing melt extrusion to obtain an extrudate;
adding the melt extrusion into a tablet press, and cooling in a nitrogen atmosphere after tabletting and forming;
and adding the pressed sheets into a crusher for crushing, grinding and crushing the crushed pressed sheets by a grinder, and sieving the crushed pressed sheets by a 200-mesh sieve to obtain the powder coating.
The invention has the following beneficial effects:
(1) the sand-textured polyester weather-resistant powder coating does not contain harmful heavy metals, and is an environment-friendly powder coating;
(2) the sand textured polyester weather-resistant powder coating has higher bending resistance, impact resistance, adhesive force and other properties, and can meet the requirements of people on sand textured coatings with frosted handfeel.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs.
The present invention has been described in detail, and the principle and embodiments of the present invention are explained by applying specific examples, which are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Claims (6)
1. The sand grain powder coating is characterized by comprising the following raw materials in parts by weight:
70-85 parts of polyester resin
20-30 parts of polyurea microspheres
4-9 parts of cross-linking agent
2-4 parts of flatting agent
3-8 parts of curing agent
3-7 parts of barium sulfate
1-2 parts of benzoin.
2. The sand-textured powder coating according to claim 1, wherein the crosslinking agent is one or more of isopropyl t-butylperoxycarbonate, 1-bis (t-butylperoxy) -3,3, 5-trimethylcyclohexane, 2-ethylhexyl t-butylperoxy carbonate, and 1, 1-bis (t-amylperoxy) -3,3, 5-trimethylcyclohexane.
3. The sand streak powder coating of claim 1, wherein the leveling agent is one of an alkyl modified organosiloxane, polydimethylsiloxane, and polyether polyester modified organosiloxane.
4. The sand grain powder coating of claim 1 wherein the curing agent is TGIC.
5. The sand textured powder coating of claim 1, wherein the polyurea microspheres are nano-sized or micro-sized polymeric spheres.
6. A method of preparing the sand textured powder coating of claim 1, comprising the steps of:
uniformly mixing the raw materials, and crushing to 70-80 meshes;
adding the mixed material into a double-screw extruder, wherein the rotating speed of a screw is 150-;
adding the melt extrusion into a tablet press, and cooling in a nitrogen atmosphere after tabletting and forming;
and adding the tablets into a crusher for crushing, grinding and crushing the crushed tablets by a grinder, and sieving the crushed tablets by a sieve of 160-mesh and 200-mesh to obtain the powder coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037928.9A CN112126324A (en) | 2020-09-28 | 2020-09-28 | Sand grain powder coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037928.9A CN112126324A (en) | 2020-09-28 | 2020-09-28 | Sand grain powder coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN112126324A true CN112126324A (en) | 2020-12-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011037928.9A Pending CN112126324A (en) | 2020-09-28 | 2020-09-28 | Sand grain powder coating and preparation method thereof |
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Citations (11)
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|---|---|---|---|---|
| AU5010790A (en) * | 1989-03-21 | 1990-09-27 | Tioxide Group Plc | Resinous compositions |
| AU2002239312B2 (en) * | 2000-11-21 | 2007-04-26 | E.I. Dupont De Nemours And Company | Low gloss powder coatings |
| CN103492498A (en) * | 2011-03-17 | 2014-01-01 | 科莱恩金融(Bvi)有限公司 | Powder coating composition for structuring and texturing coating surfaces |
| CN105349001A (en) * | 2015-11-18 | 2016-02-24 | 贾宏鹏 | Matt type powdery coating |
| CN105385321A (en) * | 2015-12-25 | 2016-03-09 | 德清县金秋塑粉有限公司 | Conductive powder coating |
| CN106010152A (en) * | 2016-06-27 | 2016-10-12 | 广西平果宝信涂料有限公司 | Sand-texture polyester type weather-resistant powder paint and preparation method thereof |
| CN106280926A (en) * | 2016-08-30 | 2017-01-04 | 黄伟青 | A kind of powdery paints for shell cylinder inner-wall spraying |
| CN106700697A (en) * | 2008-11-07 | 2017-05-24 | 帝斯曼知识产权资产管理有限公司 | Heat-curable powder coating composition |
| CN108587282A (en) * | 2018-04-27 | 2018-09-28 | 江门市力昌新材料有限公司 | A kind of conduction heat-insulating powder coating and preparation method thereof |
| US20190315994A1 (en) * | 2016-10-14 | 2019-10-17 | Dow Global Technologies Llc | Aqueous matte coating compositions |
| CN111032348A (en) * | 2017-08-31 | 2020-04-17 | 3M创新有限公司 | Shaped transfer articles comprising partially embedded microspheres, shaped articles made therefrom, and methods of making |
-
2020
- 2020-09-28 CN CN202011037928.9A patent/CN112126324A/en active Pending
Patent Citations (11)
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|---|---|---|---|---|
| AU5010790A (en) * | 1989-03-21 | 1990-09-27 | Tioxide Group Plc | Resinous compositions |
| AU2002239312B2 (en) * | 2000-11-21 | 2007-04-26 | E.I. Dupont De Nemours And Company | Low gloss powder coatings |
| CN106700697A (en) * | 2008-11-07 | 2017-05-24 | 帝斯曼知识产权资产管理有限公司 | Heat-curable powder coating composition |
| CN103492498A (en) * | 2011-03-17 | 2014-01-01 | 科莱恩金融(Bvi)有限公司 | Powder coating composition for structuring and texturing coating surfaces |
| CN105349001A (en) * | 2015-11-18 | 2016-02-24 | 贾宏鹏 | Matt type powdery coating |
| CN105385321A (en) * | 2015-12-25 | 2016-03-09 | 德清县金秋塑粉有限公司 | Conductive powder coating |
| CN106010152A (en) * | 2016-06-27 | 2016-10-12 | 广西平果宝信涂料有限公司 | Sand-texture polyester type weather-resistant powder paint and preparation method thereof |
| CN106280926A (en) * | 2016-08-30 | 2017-01-04 | 黄伟青 | A kind of powdery paints for shell cylinder inner-wall spraying |
| US20190315994A1 (en) * | 2016-10-14 | 2019-10-17 | Dow Global Technologies Llc | Aqueous matte coating compositions |
| CN111032348A (en) * | 2017-08-31 | 2020-04-17 | 3M创新有限公司 | Shaped transfer articles comprising partially embedded microspheres, shaped articles made therefrom, and methods of making |
| CN108587282A (en) * | 2018-04-27 | 2018-09-28 | 江门市力昌新材料有限公司 | A kind of conduction heat-insulating powder coating and preparation method thereof |
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| Title |
|---|
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Application publication date: 20201225 |