CN101665653A - Ultralow temperature solid powder coating - Google Patents
Ultralow temperature solid powder coating Download PDFInfo
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- CN101665653A CN101665653A CN200910153501A CN200910153501A CN101665653A CN 101665653 A CN101665653 A CN 101665653A CN 200910153501 A CN200910153501 A CN 200910153501A CN 200910153501 A CN200910153501 A CN 200910153501A CN 101665653 A CN101665653 A CN 101665653A
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Abstract
The invention discloses an ultralow temperature solid powder coating which is characterized in that the coating is formed by mixing the following components in percentage by weight: 48-54% of unsaturated polyester resin, 12-14% of crystalline resin, 2-3.5% of bisphenol-S diglycidyl ether, 1-2% of flatting agent, 23-30.5% of inorganic filler, 1.5-2.5% of alumina C and 3-3.5% of pigment. The invention has the advantage of lower solidification temperature, i.e. the powder coating can be solidified at the temperature of about 100 DGG C in the powder coating spraying process, and thus, the ultralowtemperature solid powder coating can be applied in the fields of wood, engineering plastics, certain metal alloy materials and the like, expands the application filed of traditional powder coating, saves consumed electric energy by about 50% if compared with the traditional powder coating in the spraying process because of low solidification temperature and improves productivity.
Description
Technical field
The present invention relates to a kind of powder coating, relate in particular to a kind of ultra-low-temperature solidity powder coating.
Background technology
Powder coating can not cause atmospheric pollution, so it is popularized day by day because it seldom discharges the volatility obnoxious flavour to environment when applying and solidify.But the solidification value of powder coating is usually up to 180～200 ℃ at present, it is restricted in the application in fields such as engineering plastics, timber and some metal alloy compositions, and, also influence productivity simultaneously because its solidification value than higher, is unfavorable for the saving of the energy.
Summary of the invention
Technical problem to be solved by this invention provides the ultra-low-temperature solidity powder coating that a kind of Application Areas is wide, productivity is high and energy-conservation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of ultra-low-temperature solidity powder coating, it is to be made up of after the pigment of the aluminum oxide C of mineral filler, 1.5%-2.5% of flow agent, the 23%-30.5% of bisphenol S glycidyl ether, the 1%-2% of crystal type resin, the 2%-3.5% of unsaturated polyester resin, the 12%-14% of 48%-54% and 3%-3.5% mixes weight percent content.
The weight percent content of described unsaturated polyester resin is 53.4%, the weight percent content of described crystal type resin is 13.4%, the weight percent content of described bisphenol S glycidyl ether is 3.3%, the weight percent content of described flow agent is 1.3%, the weight percent content of described mineral filler is 23.3%, the weight percent content of described aluminum oxide C is 2%, and the weight percent content of described pigment is 3.3%.
The weight percent content of described unsaturated polyester resin is 50.7%, the weight percent content of described crystal type resin is 12.7%, the weight percent content of described bisphenol S glycidyl ether is 2.6%, the weight percent content of described flow agent is 1.7%, the weight percent content of described mineral filler is 27%, the weight percent content of described aluminum oxide C is 2%, and the weight percent content of described pigment is 3.3%.
Unsaturated polyester resin described in the present invention is the vibrin that dibasic alcohol and all or part of unsaturated dibasic acid make straight chain type.The most frequently used dibasic alcohol is ethylene glycol, propylene glycol, glycerol etc., and diprotic acid is benzoic acid, oxalic acid, maleic acid, FUMARIC ACID TECH GRADE etc.
Flow agent described in the present invention is a kind of coatings additive(s) commonly used, and it can impel powder coating to eliminate surface imperfection such as tangerine peel, shrinkage cavity, pin hole, cissing in the drying and forming-film process, form one smooth, smooth, film uniformly.A kind of fine flow agent can reduce the melt viscosity of system, thereby helps melting mixing and colo(u)rant dispersion, improves the wettability to ground, improves mobile, the levelling of coating, the release that helps to remove surface imperfection He help air.In powder coating, the most frequently used flow agent has Voncoat R 3310 and multipolymer and modified polyorganosiloxane, and the polyacrylate(s) flow agent is to using light than polysiloxane of excess and contaminated susceptibility, therefore, in powder coating industry, use most popular system to be still acrylic polymer.
Compared with prior art, advantage of the present invention is that solidification value is lower, in the spraying process of powder coating, only need about 100 ℃ temperature just it can be solidified, therefore can use in fields such as timber, engineering plastics and some metal alloy compositions, enlarged the Application Areas of traditional powder coating, and because solidification value is lower, its electric energy that consumes in spraying process nearly saves 50% than traditional powder coating, has also improved productivity simultaneously; In addition, this powder coating is when being heated to 100 ℃ of left and right sides, and filming has good fusion and flow leveling, and filming after the spraying has good sticking power, scratch-proofness, solvent resistance and mechanical property.
Embodiment
Below the present invention is described in further detail.
Embodiment one: get the powder coating of powder size between the 160-170 order that unsaturated polyester resin 80 gram, crystal type resin 20 grams, bisphenol S glycidyl ether 5 grams, flow agent 2 grams, mineral filler 35 grams, aluminum oxide C3 gram, pigment 5 grams are mixed into 150 grams, and in spraying process, it is 80 ℃-90 ℃ that control melt extrudes temperature, solidification value is 95 ℃-105 ℃, be 30min set time, and the powder coating for preparing is sprayed to the metal alloy compositions surface.
The test result of its film performance is as follows:
| Appearance of film | Coating thickness | 60 ℃ of glossiness | The degassing | Pencil hardness | Solvent resistance |
| Smooth smooth | ??35-50μm | ??95％ | Do not have | ??3H | No. 50 no changes of wiping back and forth |
Embodiment two: get the powder coating of powder size between the 160-170 order that unsaturated polyester resin 78 gram, crystal type resin 19.5 grams, bisphenol S glycidyl ether 4.5 grams, flow agent 2 grams, mineral filler 38 grams, aluminum oxide C 3 grams, pigment 5 grams are mixed into 150 grams, and in spraying process, it is 80 ℃-90 ℃ that control melt extrudes temperature, solidification value is 95 ℃-105 ℃, be 30min set time, and the powder coating for preparing is sprayed to the metal alloy compositions surface.
The test result of its film performance is as follows:
| Appearance of film | Coating thickness | 60 ℃ of glossiness | The degassing | Pencil hardness | Solvent resistance |
| Smooth smooth | ??35-50μm | ??93％ | Slightly | ??3H | No. 50 no changes of wiping back and forth |
Embodiment three: get the powder coating of powder size between the 160-170 order that unsaturated polyester resin 76 gram, crystal type resin 19 grams, bisphenol S glycidyl ether 4 grams, flow agent 2.5 grams, mineral filler 40.5 grams, aluminum oxide C 3 grams, pigment 5 grams are mixed into 150 grams, and in spraying process, it is 80 ℃-90 ℃ that control melt extrudes temperature, solidification value is 95 ℃-105 ℃, be 30min set time, and the powder coating for preparing is sprayed to the metal alloy compositions surface.
The test result of its film performance is as follows:
| Appearance of film | Coating thickness | 60 ℃ of glossiness | The degassing | Pencil hardness | Solvent resistance |
| Smooth smooth | ??35-50μm | ??90％ | Slightly | ??2H | No. 50 no changes of wiping back and forth |
Embodiment four: get the powder coating of powder size between the 160-170 order that unsaturated polyester resin 74 gram, crystal type resin 18.5 grams, bisphenol S glycidyl ether 3.8 grams, flow agent 2.8 grams, mineral filler 42.9 grams, aluminum oxide C 3 grams, pigment 5 grams are mixed into 150 grams, and in spraying process, it is 80 ℃-90 ℃ that control melt extrudes temperature, solidification value is 95 ℃-105 ℃, be 30min set time, and the powder coating for preparing is sprayed to the metal alloy compositions surface.
The test result of its film performance is as follows:
| Appearance of film | Coating thickness | 60 ℃ of glossiness | The degassing | Pencil hardness | Solvent resistance |
| Slight tangerine peel | ??40-50μm | 88％ | Slightly | ??2H | No. 50 no changes of wiping back and forth |
Embodiment five: get the powder coating of powder size between the 160-170 order that unsaturated polyester resin 72 gram, crystal type resin 18 grams, bisphenol S glycidyl ether 3.6 grams, flow agent 3 grams, mineral filler 45.4 grams, aluminum oxide C 3 grams, pigment 5 grams are mixed into 150 grams, and in spraying process, it is 80 ℃-90 ℃ that control melt extrudes temperature, solidification value is 95 ℃-105 ℃, be 30min set time, and the powder coating for preparing is sprayed to the metal alloy compositions surface.
The test result of its film performance is as follows:
| Appearance of film | Coating thickness | 60 ℃ of glossiness | The degassing | Pencil hardness | Solvent resistance |
| Slight tangerine peel | ??40-50μm | ??85％ | Moderate | ??2H | No. 50 no changes of wiping back and forth |
Claims (3)
1, a kind of ultra-low-temperature solidity powder coating is characterized in that it is to be made up of after the pigment of the aluminum oxide C of mineral filler, 1.5%-2.5% of flow agent, the 23%-30.5% of bisphenol S glycidyl ether, the 1%-2% of crystal type resin, the 2%-3.5% of unsaturated polyester resin, the 12%-14% of 48%-54% and 3%-3.5% mixes weight percent content.
2, a kind of ultra-low-temperature solidity powder coating as claimed in claim 1, the weight percent content that it is characterized in that described unsaturated polyester resin is 53.4%, the weight percent content of described crystal type resin is 13.4%, the weight percent content of described bisphenol S glycidyl ether is 3.3%, the weight percent content of described flow agent is 1.3%, the weight percent content of described mineral filler is 23.3%, the weight percent content of described aluminum oxide C is 2%, and the weight percent content of described pigment is 3.3%.
3, a kind of ultra-low-temperature solidity powder coating as claimed in claim 1, the weight percent content that it is characterized in that described unsaturated polyester resin is 50.7%, the weight percent content of described crystal type resin is 12.7%, the weight percent content of described bisphenol S glycidyl ether is 2.6%, the weight percent content of described flow agent is 1.7%, the weight percent content of described mineral filler is 27%, the weight percent content of described aluminum oxide C is 2%, and the weight percent content of described pigment is 3.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910153501A CN101665653A (en) | 2009-09-28 | 2009-09-28 | Ultralow temperature solid powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910153501A CN101665653A (en) | 2009-09-28 | 2009-09-28 | Ultralow temperature solid powder coating |
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| CN101665653A true CN101665653A (en) | 2010-03-10 |
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| CN200910153501A Pending CN101665653A (en) | 2009-09-28 | 2009-09-28 | Ultralow temperature solid powder coating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059696A (en) * | 2012-12-12 | 2013-04-24 | 滁州市宏源喷涂有限公司 | Powder coating containing modified sepiolite powder and preparing method thereof |
| WO2013078648A1 (en) * | 2011-11-30 | 2013-06-06 | Superl Technology Limited | Methods of powder coating |
| CN103172844A (en) * | 2011-12-21 | 2013-06-26 | 常州市华润复合材料有限公司 | Unsaturated polyester with low viscosity and application thereof |
| CN103497654A (en) * | 2013-09-24 | 2014-01-08 | 安徽锐视光电技术有限公司 | Low-temperature curing powder coating |
-
2009
- 2009-09-28 CN CN200910153501A patent/CN101665653A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078648A1 (en) * | 2011-11-30 | 2013-06-06 | Superl Technology Limited | Methods of powder coating |
| CN103172844A (en) * | 2011-12-21 | 2013-06-26 | 常州市华润复合材料有限公司 | Unsaturated polyester with low viscosity and application thereof |
| CN103059696A (en) * | 2012-12-12 | 2013-04-24 | 滁州市宏源喷涂有限公司 | Powder coating containing modified sepiolite powder and preparing method thereof |
| CN103059696B (en) * | 2012-12-12 | 2016-03-16 | 滁州市宏源喷涂有限公司 | A kind of powder coating containing modified meerschaum powder and preparation method thereof |
| CN103497654A (en) * | 2013-09-24 | 2014-01-08 | 安徽锐视光电技术有限公司 | Low-temperature curing powder coating |
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Application publication date: 20100310 |