CN106085103A - A kind of weather-proof uvioresistant epoxy toner coating and preparation method thereof - Google Patents
A kind of weather-proof uvioresistant epoxy toner coating and preparation method thereof Download PDFInfo
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- CN106085103A CN106085103A CN201610406953.7A CN201610406953A CN106085103A CN 106085103 A CN106085103 A CN 106085103A CN 201610406953 A CN201610406953 A CN 201610406953A CN 106085103 A CN106085103 A CN 106085103A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of weather-proof uvioresistant epoxy powder coating and preparation method thereof, the raw material that this coating comprises following weight portion is made: bisphenol-A epoxy resin 40～45 parts, novolac epoxy resin 20 30 parts, blanc fixe 10～20 parts, titanium dioxide 15～25 parts, nano ceric oxide 0.3～0.5 part, polyvinyl alcohol 0.5～2 parts, modified micro mist wax 0.8～2 parts, firming agent 3～5 parts, UV absorbent 0.5～0.8 part, defoamer 0.1～0.3 part, levelling agent 0.2～1 part.It is strong that the epoxide powder coating of the present invention has excellent high photosensitiveness, weatherability, ultraviolet-resistent property.
Description
Technical field
The present invention relates to a kind of powder coating technology field, particularly relate to a kind of weather-proof uvioresistant epoxy toner coating
And preparation method thereof.
Background technology
Powdery paints is a kind of novel without solvent 100% solid powdery coating, have solvent-free, pollution-free, can return
Receipts, environmental protection, the saving energy and resource, reduce labor intensity and film mechanical strength high.The application of powdery paints is super
Get over the water paint in coatings industry and high solid coating etc., become industrial quarters and use one of more coating variety.Powder
Coating process solves the problems such as inflammable, the explosive and pollution environment existing for traditional paint coating process, and its coating has
Standby superior performance, coating process is simple.Epoxy resin is one of very important anticorrosive coating material, with the attachment of its excellence
Power, pliability and corrosion resistance and anti-corrosion life length are favored by anticorrosive paint tradesman, be widely used in electric power,
The fields such as machinery, building.But the weakness such as its acid resistance and organic solvent resistance difference significantly limit its application.It addition, with
The raising of people's quality of life, weatherability, the uvioresistant of epoxy resin is required more and more higher, but different asphalt mixtures modified by epoxy resin
Fat is weather-proof bigger difference, so selecting the epoxy resin of suitable types and other raw material to prepare epoxide powder coating to raising
Its weatherability, uvioresistant have the significance that technology improves.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of weather-proof uvioresistant epoxy powder coating and preparation thereof
Method.
The present invention is achieved by the following technical solutions: a kind of weather-proof uvioresistant epoxy powder of the present invention is coated with
Material, following raw materials by weight portion each component proportion calculated makes: bisphenol-A epoxy resin 40～45 parts,
Novolac epoxy resin 20-30 part, blanc fixe 10～20 parts, titanium dioxide 15～25 parts, nano ceric oxide 0 .3～0 .5
Part, polyvinyl alcohol 0.5～2 parts, modified micro mist wax 0.8～2 parts, firming agent 3～5 parts, UV absorbent 0.5～0.8 part, disappear
Infusion 0.1～0.3 part, levelling agent 0.2～1 part.
Further, the weather-proof uvioresistant epoxy powder coating of one of the present invention, calculate by weight: hydrogenation is double
Phenol A type epoxy resin 42 parts, novolac epoxy resin 25 parts, blanc fixe 15 parts, titanium dioxide 20 parts, nano ceric oxide 0 .4
Part, polyvinyl alcohol 1.3 parts, modified micro mist wax 1.5 parts, 4 parts of firming agent, UV absorbent 0.7 part, defoamer 0.2 part, levelling
Agent 0.6 part.
Described modified micro mist wax is with polytetrafluoroethylmodified modified polyethylene wax micro mist wax, and mean particle size is 15 μm；
Described firming agent is hydroxyalkyl amide；
Described UV absorbent is UV-531(2-hydroxyl-4-octyloxybenzophenone)；
Described defoamer is organic silicon defoamer；
Described levelling agent is hydroxymethyl cellulose；
Wherein said nano ceric oxide acts on jointly with UV absorbent, defoamer, levelling agent, strengthens the high photosensitiveness of coating
Can be with weather-proof uvioresistant performance；Described modified micro mist wax increases flatness, wearability, scratch resistant performance.
The preparation method of a kind of weather-proof uvioresistant epoxy powder coating of the present invention, it comprises the following steps:
(1), by blanc fixe, titanium dioxide add 8～12 times of weight water in, regulation pH be adjusted to 3, be subsequently adding nanometer titanium dioxide
Cerium and polyvinyl alcohol, stir 1h at 60～65 DEG C, then pH be adjusted to 7, continues stirring 2h, then at 150 DEG C dry 5～6h, cold
It is ground to 500～600 mesh the most afterwards, obtains modified filler；
(2), by bisphenol-A epoxy resin, novolac epoxy resin 90～95 DEG C, rotating speed mixes at 1000-～1200r/min
Close 10～12min, obtain resin compound；
(3), by the resin compound in the modified filler in (1) and (2) prior to 1000～1500r/min mixed at high speed 20～
30min, adds modified micro mist wax, firming agent, UV absorbent, defoamer, levelling agent uniform stirring, passes through Screw Extrusion
Machine melt extrudes, and then cools down section, first coarse pulverization, then grinding and obtains fine powder；Separated by cyclone separator, through 500～600
Mesh classification is sieved, is detected, and get product a kind of weather-proof uvioresistant epoxy powder coating.
Beneficial effects of the present invention
A kind of weather-proof uvioresistant epoxy powder coating of the present invention and preparation method thereof difference from prior art is:
1, the nano titanium oxide in a kind of weather-proof uvioresistant epoxy powder coating raw material of the present invention is inhaled with ultraviolet
Receipts agent, defoamer, levelling agent act on jointly, strengthen the high optical property of coating and weather-proof uvioresistant performance；Add modified micro mist wax
It is effectively increased the flatness of coating, wearability, scratch resistant performance.
2, the weather-proof uvioresistant epoxy powder coating of one that the present invention prepares through electrostatic spraying use after, outer sightseeing
Bright plentiful, paint film is smooth；And weatherability is strong, have the advantages such as resistance to water, alkali resistance, uvioresistant.
Detailed description of the invention
The weather-proof uvioresistant epoxy powder coating of one to the present invention and system thereof is tested with the following Examples with checking
Preparation Method is further described.
Embodiment 1
The weather-proof uvioresistant epoxy powder coating of one of the present embodiment, calculates: hydrogenated bisphenol A type epoxy by weight
Resin 40 parts, novolac epoxy resin 30 parts, blanc fixe 10 parts, titanium dioxide 25 parts, nano ceric oxide 0 .3 part, polyethylene
Alcohol 0.8 part, modified micro mist wax 1.2 parts, 3.5 parts of firming agent, UV absorbent 0.5 part, defoamer 0.1 part, levelling agent 0.4
Part.
Its preparation method is as follows:
(1), by blanc fixe, titanium dioxide add 8 times of weight water in, regulation pH be adjusted to 3, be subsequently adding nano ceric oxide and
Polyvinyl alcohol, stirs 1h at 62 DEG C, then pH is adjusted to 7, continues stirring 2h, then at 150 DEG C of dry 5h, is ground to after cooling
500 mesh, obtain modified filler；
(2), by bisphenol-A epoxy resin, novolac epoxy resin 90 DEG C, rotating speed at 1000r/min mixing 10min,
Resin compound；
(3), by the resin compound in the modified filler in (1) and (2) prior to 1200r/min mixed at high speed 30min, add
Modified micro mist wax, firming agent, UV absorbent, defoamer, levelling agent uniform stirring, melt extruded by screw extruder,
Then cool down section, first coarse pulverization, then grinding and obtain fine powder；Separated by cyclone separator, sieve through 500 mesh classifications, detect,
Get product a kind of weather-proof uvioresistant epoxy powder coating.
Embodiment 2
The weather-proof uvioresistant epoxy powder coating of one of the present embodiment, calculates: hydrogenated bisphenol A type epoxy by weight
Resin 42 parts, novolac epoxy resin 25 parts, blanc fixe 15 parts, titanium dioxide 20 parts, nano ceric oxide 0 .4 part, polyethylene
Alcohol 1.3 parts, modified micro mist wax 1.5 parts, 4 parts of firming agent, UV absorbent 0.7 part, defoamer 0.2 part, levelling agent 0.6 part.
Its preparation method is as follows:
(1), by blanc fixe, titanium dioxide add 9 times of weight water in, regulation pH be adjusted to 3, be subsequently adding nano ceric oxide and
Polyvinyl alcohol, stirs 1h at 65 DEG C, then pH is adjusted to 7, continues stirring 2h, then at 150 DEG C of dry 6h, is ground to after cooling
600 mesh, obtain modified filler；
(2), by bisphenol-A epoxy resin, novolac epoxy resin 92 DEG C, rotating speed at 1000r/min mixing 12min,
Resin compound；
(3), by the resin compound in the modified filler in (1) and (2) prior to 1500r/min mixed at high speed 20min, add
Modified micro mist wax, firming agent, UV absorbent, defoamer, levelling agent uniform stirring, melt extruded by screw extruder,
Then cool down section, first coarse pulverization, then grinding and obtain fine powder；Separated by cyclone separator, sieve through 600 mesh classifications, detect,
Get product a kind of weather-proof uvioresistant epoxy powder coating.
Embodiment 3
The weather-proof uvioresistant epoxy powder coating of one of the present embodiment, calculates: hydrogenated bisphenol A type epoxy by weight
Resin 45 parts, novolac epoxy resin 20 parts, blanc fixe 20 parts, titanium dioxide 15 parts, nano ceric oxide 0 .5 part, polyethylene
Alcohol 1.8 parts, modified micro mist wax 1.7 parts, 5 parts of firming agent, UV absorbent 0.8 part, defoamer 0.3 part, levelling agent 0.8 part.
Its preparation method is as follows:
(1), by blanc fixe, titanium dioxide add 12 times of weight water in, regulation pH be adjusted to 3, be subsequently adding nano ceric oxide
And polyvinyl alcohol, stir 1h at 60 DEG C, then pH is adjusted to 7, continue stirring 2h, then at 150 DEG C of dry 6h, be ground to after cooling
600 mesh, obtain modified filler；
(2), by bisphenol-A epoxy resin, novolac epoxy resin 95 DEG C, rotating speed at 1200r/min mixing 10min,
Resin compound；
(3), by the resin compound in the modified filler in (1) and (2) prior to 1400r/min mixed at high speed 25min, add
Modified micro mist wax, firming agent, UV absorbent, defoamer, levelling agent uniform stirring, melt extruded by screw extruder,
Then cool down section, first coarse pulverization, then grinding and obtain fine powder；Separated by cyclone separator, sieve through 600 mesh classifications, detect,
Get product a kind of weather-proof uvioresistant epoxy powder coating.
By the finished powder in above-described embodiment 1～3 with 60～80KV high pressure electrostatic painting devices, respectively even application 3～
On the tinplate of 5mm so that it is film thickness monitoring is between 60～80 microns, and by the sample that sprayed in the baking of 185～195 °
Case toasts 15～18 minutes, obtain after cooling surveying trial target.
Finished product in embodiment 1～3 sprays the trial target obtained, and its shiny appearance is plentiful, paint film is smooth, carries out its performance
Detection, acquired results is as shown in table 1.
The property indices of product in table 1 embodiment 1～3
As shown in Table 1, the weather-proof uvioresistant epoxy powder coating of one of the present invention, lacquer painting hardness, chemical resistance, attachment
The performances such as power are all significantly better than existing product standard, and the particularly weatherability such as uvioresistant is strong, experiment proves that 2000h remains to keep
Product not efflorescence, variable color and cracking are all only 1 grade.
Although the foregoing describing the detailed description of the invention of the present invention, it will be appreciated by those of skill in the art that these
Being merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of the principle and essence of the present invention, these embodiments can be made various changes or modifications, but these change
Protection scope of the present invention is each fallen within amendment.
Claims (3)
1. a weather-proof uvioresistant epoxy powder coating, it is characterised in that calculated by following raw materials by weight portion
Each component proportion is made: bisphenol-A epoxy resin 40～45 parts, novolac epoxy resin 20-30 part, blanc fixe 10
～20 parts, titanium dioxide 15～25 parts, nano ceric oxide 0 .3～0 .5 part, polyvinyl alcohol 0.5～2 parts, modified micro mist wax
0.8～2 part, firming agent 3～5 parts, UV absorbent 0.5～0.8 part, defoamer 0.1～0.3 part, levelling agent 0.2～1 part；
Described modified micro mist wax is with polytetrafluoroethylmodified modified polyethylene wax micro mist wax, and mean particle size is 15 μm；
Described firming agent is hydroxyalkyl amide；
Described UV absorbent is UV-531(2-hydroxyl-4-octyloxybenzophenone)；
Described defoamer is organic silicon defoamer；
Described levelling agent is hydroxymethyl cellulose.
The weather-proof uvioresistant epoxy powder coating of one the most according to claim 1, it is characterised in that by weight
Number calculates: bisphenol-A epoxy resin 42 parts, novolac epoxy resin 25 parts, blanc fixe 15 parts, titanium dioxide 20 parts, nanometer
Ceria 0 .4 part, polyvinyl alcohol 1.3 parts, modified micro mist wax 1.5 parts, 4 parts of firming agent, UV absorbent 0.7 part, froth breaking
Agent 0.2 part, levelling agent 0.6 part.
3. a preparation method for a kind of weather-proof uvioresistant epoxy powder coating according to claim 1, it is special
Levying and be, it comprises the following steps:
(1) by blanc fixe, titanium dioxide add 8～12 times of weight water in, regulation pH be adjusted to 3, be subsequently adding nanometer titanium dioxide
Cerium and polyvinyl alcohol, stir 1h at 60～65 DEG C, then pH be adjusted to 7, continues stirring 2h, then at 150 DEG C dry 5～6h, cold
It is ground to 500～600 mesh the most afterwards, obtains modified filler；
(2) by bisphenol-A epoxy resin, novolac epoxy resin 90～95 DEG C, rotating speed mixes at 1000-～1200r/min
Close 10～12min, obtain resin compound；
(3) by the resin compound in the modified filler in (1) and (2) prior to 1000～1500r/min mixed at high speed 20～
30min, adds modified micro mist wax, firming agent, UV absorbent, defoamer, levelling agent uniform stirring, passes through Screw Extrusion
Machine melt extrudes, and then cools down section, first coarse pulverization, then grinding and obtains fine powder；Separated by cyclone separator, through 500～600
Mesh classification is sieved, is detected, and prepares finished product, i.e. obtains a kind of weather-proof uvioresistant epoxy powder coating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406953.7A CN106085103A (en) | 2016-06-12 | 2016-06-12 | A kind of weather-proof uvioresistant epoxy toner coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610406953.7A CN106085103A (en) | 2016-06-12 | 2016-06-12 | A kind of weather-proof uvioresistant epoxy toner coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861805A (en) * | 2021-09-14 | 2021-12-31 | 北京天乙长科技发展有限公司 | High-temperature wear-resistant heavy-duty anticorrosive powder coating and preparation method and coating method thereof |
| CN117264506A (en) * | 2023-11-23 | 2023-12-22 | 赛高新材料科技有限公司 | Antibacterial powder coating and preparation method thereof |
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2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113861805A (en) * | 2021-09-14 | 2021-12-31 | 北京天乙长科技发展有限公司 | High-temperature wear-resistant heavy-duty anticorrosive powder coating and preparation method and coating method thereof |
| CN117264506A (en) * | 2023-11-23 | 2023-12-22 | 赛高新材料科技有限公司 | Antibacterial powder coating and preparation method thereof |
| CN117264506B (en) * | 2023-11-23 | 2024-01-26 | 赛高新材料科技有限公司 | Antibacterial powder coating and preparation method thereof |
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