CN104017407B - A kind of thermosetting powder coating(s) including auxiliary agent - Google Patents
A kind of thermosetting powder coating(s) including auxiliary agent Download PDFInfo
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- CN104017407B CN104017407B CN201410284625.5A CN201410284625A CN104017407B CN 104017407 B CN104017407 B CN 104017407B CN 201410284625 A CN201410284625 A CN 201410284625A CN 104017407 B CN104017407 B CN 104017407B
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Abstract
The invention discloses a kind of thermosetting coating including auxiliary agent, include resin, solidifying agent, pigment, filler and auxiliary agent, wherein, the content of described auxiliary agent is 4%, the content sum of described resin, solidifying agent, pigment, filler and auxiliary agent is 96%, described auxiliary agent includes the first pre-composition and the second pre-composition, described first pre-composition includes liquid flow agent, aerosil, and described second pre-composition includes st-yrax, 701 wetting agents, hydrogenated castor oil, ethylene bis stearamide, tetrafluoroethylene wax and butyral.
Description
Technical field
The present invention relates to thermosetting powder coating(s) technical field, concrete, relate to a kind of thermosetting powder coating(s) including auxiliary agent.
Background technology
Powder coating is a kind of novel not containing solvent 100% solid powdery coating.There is solvent-free, pollution-free, recyclable, environmental protection, the saving energy and resource, reduce labor intensity and film physical strength high.
Thermosetting powder coating(s) is the one in powder coating, in prior art, be disclose a kind of thermosetting powder coating(s) in the Chinese invention patent prospectus of 201310749823 in the patent No., it comprises following raw material, described raw material by weight percentage: vibrin: 60-80 ﹪; Solidifying agent: 4-6 ﹪; Flow agent: 0.8-1.2%; Wetting agent: 0.8-1.5 ﹪; Defoamer: 0.8-1.5%; Ultraviolet absorbers: 1-6%; Tetrafluoro wax: 0.8-1.5%; Titanium dioxide: 2-12%; Mica powder: 2-8%; Barium sulfate: 4-11%; Mineral dye: 0.4-2%; Metallic pigment: 2-8 ﹪.It is smooth that the thermosetting powder coating(s) of this invention has scumbling, the features such as hardness is high, the excellent surface of scratch resistant.Wherein, solidifying agent, flow agent and mica powder all belong to auxiliary agent.
But; thermosetting powder coating(s) in above-mentioned patent; in the process of smearing; often can there is film shrinkage cavity, film unfairness, not bright and clean phenomenon; can by the pin-hole phenomena adsorbing moisture content in some low-boiling by-products or color stuffing and cause when paint solidification, toughness, the surface hardness of the film of the coating in addition in above-mentioned patent are not high.
Summary of the invention
Technical problem to be solved by this invention provides a kind of thermosetting powder coating(s) including auxiliary agent for the above-mentioned state of the art, this auxiliary agent have promote moistening elimination film shrinkage cavity, impel film formed smooth bright and clean full, when eliminating paint solidification by the pin hole adsorbed in some low-boiling by-products or color stuffing caused by moisture content, the function being coated with film toughness, increasing film coated surface hardness can be improved.
For achieving the above object, the invention provides following technical scheme:
A kind of thermosetting powder coating(s) including auxiliary agent, include resin, solidifying agent, pigment, filler and auxiliary agent, wherein, the content of described auxiliary agent is 4%, the content sum of described resin, solidifying agent, pigment, filler and auxiliary agent is 96%, described auxiliary agent includes the first pre-composition and the second pre-composition, described first pre-composition includes liquid flow agent, aerosil, and described second pre-composition includes st-yrax, 701 wetting agents, hydrogenated castor oil, ethylene bis stearamide, tetrafluoroethylene wax and butyral.
Concrete, described first pre-composition includes the liquid flow agent of 12 parts and the aerosil of 8 parts, and described second pre-composition includes the butyral of the st-yrax of 12 parts, 701 wetting agents of 12 parts, the hydrogenated castor oil of 20 parts, the ethylene bis stearamide of 6 parts, the tetrafluoroethylene wax of 4 parts and 6 parts.
Here, the effect of each component is as follows:
In the first pre-composition, aerosil is one of ultra tiny New Inorganic Materials of extremely important high-tech, because its particle diameter is very little, therefore specific surface area is large, superficial attractive forces is strong, surface energy is large, and the aspects such as chemical purity is high, dispersing property good, thermal resistance, resistance have special performance, with its superior stability, reinforcing, thickening property and thixotropy.This auxiliary agent is utilize the function that its specific surface area is large, superficial attractive forces is strong, dispersing property is good with aerosil, adsorbs 403 liquid flow agents and disperses, and is convenient to powder coating and produces, play the bright and clean effect of powder coating smooth coating;
403 liquid flow agents take esters of acrylic acid as main raw material, polymerization synthesis under certain temperature catalyst action, and polymer type is multipolymer; 403 liquid flow agents are colourless or pale yellow viscous liquid, be all kinds of solid flow agent mainly contain effective constituent, it can reduce coating surface tension in powder coating, reaches homogenizing and the levelling of coatingsurface, and can improve the ageing-resistant of coating.
In the second pre-composition, st-yrax be bitter almond oil camphor also known as hexichol alcohol ketone, be a kind of organic compound, froth breaking effect effectively in powder coating (elimination pin hole).
701 wetting agents are acrylate butyl ester and methylmethacrylate copolymer, because it contains some amount polarity gene, therefore to the polarity additive (as pigment, filler) in powder coating and substrate to be coated (as the metal such as iron, aluminium), there is good wetting action, thus in the manufacture and construction process of powder coating, effectively eliminate shrinkage cavity, promote levelling.
Hydrogenated castor oil is chain saturated fatty acids compounds, and in powder coating, energy regulation system viscosity and surface tension, improve pigment-dispersing, also has the effect of auxiliary levelling simultaneously.
Ethylene bis stearamide is surface-modifying agent, and powder coating is produced and added the freedom from jamming that ethylene bis stearamide can significantly improve powder coating, reduces system viscosity, improves the plate surface current after film forming and puts down, reduce film pin hole, improve plate face gloss.
Tetrafluoroethylene wax, because the hardness of wax component is high, resistance to marring and wear resistance good, particle diameter is little, and the smooth degree of feel is excellent, and Gloss Retention is good.
Add butyral improve powder coating film counter-bending, have levelling toughening effect, reduce a little storing temperature, planeness, smooth finish increase simultaneously, make above-mentioned thermosetting powder coating(s) have high firmly tough and tensile performance.
By the auxiliary agent that above-mentioned technique is obtained, during being added in (plane Gao Guang, sub-light, without light type) thermosetting powder coating(s), have promote the shrinkage cavity of moistening elimination film, impel film formed smooth bright and clean full, when eliminating paint solidification by the pin hole adsorbed in some low-boiling by-products or color stuffing caused by moisture content, the function being coated with film toughness, increasing film coated surface hardness can be improved.
Embodiment
Embodiment one:
The present embodiment is a kind of thermosetting powder coating(s) including auxiliary agent, include resin, solidifying agent, pigment, filler and auxiliary agent, wherein, the content of described auxiliary agent is 5%, the content sum of described resin, solidifying agent, pigment, filler and auxiliary agent is 95%, described auxiliary agent includes the first pre-composition and the second pre-composition, described first pre-composition includes liquid flow agent, aerosil, and described second pre-composition includes st-yrax, 701 wetting agents, hydrogenated castor oil, ethylene bis stearamide, tetrafluoroethylene wax and butyral.
Concrete, the formula of this auxiliary agent is as follows,
One, auxiliary formula:
403 liquid flow agents 12
Aerosil 8
St-yrax 12
701 wetting agents 12
Hydrogenated castor oil 20
Ethylene bis stearamide 6
Tetrafluoroethylene wax 4
Butyral 6
Add up to 100 parts
Auxiliary agent synthesis manufactures:
In high speed dispersion mixing and blending machine; first add aerosil; start stirring rake, then beam enters 403 liquid flow agents at leisure, approximately stirs 10 minutes; aerosil is made thoroughly to adsorb 403 liquid flow agents and be uniformly dispersed; add st-yrax again, 701 wetting agents, hydrogenated castor oil, ethylene bis stearamide, tetrafluoroethylene wax, butyral stir homogenizing 5 minutes, allow them stir completely, shut down; blowing, packaging (auxiliary agent finished product).
Promoter material is analyzed and effect:
Aerosil is one of ultra tiny New Inorganic Materials of extremely important high-tech, because its particle diameter is very little, therefore specific surface area is large, superficial attractive forces is strong, surface energy is large, the aspects such as chemical purity is high, dispersing property good, thermal resistance, resistance have special performance, with its superior stability, reinforcing, thickening property and thixotropy.This auxiliary agent is utilize the function that its specific surface area is large, superficial attractive forces is strong, dispersing property is good with aerosil, adsorbs 403 liquid flow agents and disperses, and is convenient to powder coating and produces, play the bright and clean effect of powder coating smooth coating;
403 liquid flow agents take esters of acrylic acid as main raw material, polymerization synthesis under certain temperature catalyst action, and polymer type is multipolymer; 403 liquid flow agents are colourless or pale yellow viscous liquid, be all kinds of solid flow agent mainly contain effective constituent, it can reduce coating surface tension in powder coating, reaches homogenizing and the levelling of coatingsurface, and can improve the ageing-resistant of coating.
St-yrax be bitter almond oil camphor also known as hexichol alcohol ketone, be a kind of organic compound, froth breaking effect effectively in powder coating (elimination pin hole).
701 wetting agents are acrylate butyl ester and methylmethacrylate copolymer, because it contains some amount polarity gene, therefore to the polarity additive (as pigment, filler) in powder coating and substrate to be coated (as the metal such as iron, aluminium), there is good wetting action, thus in the manufacture and construction process of powder coating, effectively eliminate shrinkage cavity, promote levelling.
Hydrogenated castor oil is chain saturated fatty acids compounds, and in powder coating, energy regulation system viscosity and surface tension, improve pigment-dispersing, also has the effect of auxiliary levelling simultaneously.
Ethylene bis stearamide is surface-modifying agent, and powder coating is produced and added the freedom from jamming that ethylene bis stearamide can significantly improve powder coating, reduces system viscosity, improves the plate surface current after film forming and puts down, reduce film pin hole, improve plate face gloss.
Tetrafluoroethylene wax, because the hardness of wax component is high, resistance to marring and wear resistance good, particle diameter is little, and the smooth degree of feel is excellent, and Gloss Retention is good.
Add butyral improve powder coating film counter-bending, have levelling toughening effect, reduce a little storing temperature, planeness, smooth finish increase simultaneously, make powder coating have high firmly tough and tensile performance.
In embodiment one, prepare the method for described thermosetting powder coating(s) auxiliary agent, comprise the steps:
1) in high speed dispersion mixing and blending machine, aerosil 8 parts is added;
2) start stirring rake, then beam enters the liquid flow agent of 12 parts at leisure, approximately stirs 10 minutes, makes the thorough adsorptive liquid flow agent of above-mentioned aerosil and be uniformly dispersed, obtaining the first pre-composition;
3) add the second pre-composition and carry out stirring homogenizing 5 minutes, the first pre-composition and the second pre-composition are stirred completely;
4) shut down blowing, the first pre-composition and the second pre-composition are stirred the mixture formed and puts into oven for drying;
5) by dry mixture again through micro mist pulverizing mill abrasive dust;
6) by auxiliary agent obtained after abrasive dust packaging.
Wherein, in described step 3), the operation adding the second pre-composition comprises the steps:
Step 1, in the first pre-composition, add the st-yrax of 12 parts;
Step 2, in the first pre-composition, add 701 wetting agents of 12 parts;
Step 3, in the first pre-composition, add the hydrogenated castor oil of 20 parts;
Step 4, in the first pre-composition, add the ethylene bis stearamide of 6 parts;
Step 5, in the first pre-composition, add the tetrafluoroethylene wax of 4 parts;
Step 6, in the first pre-composition, add the butyral of 6 parts.
Embodiment two:
In the present embodiment, prepare the method for aforesaid thermosetting powder coating(s) auxiliary agent, comprise the steps:
1) in high speed dispersion mixing and blending machine, aerosil 8 parts is added;
2) start stirring rake, then beam enters the liquid flow agent of 12 parts at leisure, approximately stirs 10 minutes, makes the thorough adsorptive liquid flow agent of above-mentioned aerosil and be uniformly dispersed, obtaining the first pre-composition;
3) add the second pre-composition and carry out stirring homogenizing 5 minutes, the first pre-composition and the second pre-composition are stirred completely;
4) shut down blowing, the first pre-composition and the second pre-composition are stirred the mixture formed and puts into oven for drying;
5) by dry mixture again through micro mist pulverizing mill abrasive dust;
6) by auxiliary agent obtained after abrasive dust packaging.
Wherein, in described step 3), the operation adding the second pre-composition comprises the steps:
One, the st-yrax adding 12 parts is being arranged in another other pony mixer of aforementioned high speed dispersion mixing and blending machine;
Two, in pony mixer, add 701 wetting agents of 12 parts;
Three, in pony mixer, add the hydrogenated castor oil of 20 parts;
Four, in pony mixer, add the ethylene bis stearamide of 6 parts;
Five, in pony mixer, add the tetrafluoroethylene wax of 4 parts;
Six, the butyral adding 6 parts in pony mixer makes the second pre-composition thus;
Seven, above-mentioned the second pre-composition made is joined the first pre-composition being arranged in high speed dispersion mixing and blending machine to stir.
Embodiment one is compared with enforcement two, difference is that the process that the first pre-composition and the second pre-composition are carrying out mixing by both preparation technologies is different, embodiment one each component of the second pre-composition is added in turn in the first pre-composition to stir, convenient adjustment.And embodiment two carries out the stirring of the first pre-composition and the second pre-composition simultaneously, improve working efficiency, but too increase cost simultaneously.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. one kind includes the thermosetting powder coating(s) of auxiliary agent, include resin, solidifying agent, pigment, filler and auxiliary agent, wherein, the content of described auxiliary agent is 4%, described resin, solidifying agent, pigment, the content sum of filler and auxiliary agent is 96%, described auxiliary agent includes the first pre-composition and the second pre-composition, described first pre-composition includes liquid flow agent, aerosil, described second pre-composition includes st-yrax, 701 wetting agents, hydrogenated castor oil, ethylene bis stearamide, tetrafluoroethylene wax and butyral, described first pre-composition includes the liquid flow agent of 12 parts and the aerosil of 8 parts, described second pre-composition includes the st-yrax of 12 parts, 701 wetting agents of 12 parts, the hydrogenated castor oil of 20 parts, the ethylene bis stearamide of 6 parts, the butyral of the tetrafluoroethylene wax of 4 parts and 6 parts.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106280633A (en) * | 2016-08-31 | 2017-01-04 | 玉石塑粉有限公司 | A kind of thermosetting powder coating auxiliary agent and use the powdery paints of this auxiliary agent |
| CN107099184A (en) * | 2017-03-24 | 2017-08-29 | 九江市杰克西涂料有限公司 | A kind of powdery paints solid levelling agent and preparation method thereof |
| CN107083099A (en) * | 2017-04-25 | 2017-08-22 | 九江市杰克西涂料有限公司 | A kind of powdery paints flowing anti-caking auxiliary agent and preparation method thereof |
| CN109609001A (en) * | 2018-12-21 | 2019-04-12 | 六安捷通达新材料有限公司 | A kind of wet-heat resisting hydroxyalkyl amide curing type powdery paints |
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| CN1478836A (en) * | 2003-07-10 | 2004-03-03 | 广州电器科学研究院 | Thermo setting low temperature solidify whether resistant low light powder paint |
| CN1513041A (en) * | 2001-06-08 | 2004-07-14 | 大金工业株式会社 | Thermosetting powder coating composition |
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| CN101508867A (en) * | 2009-03-17 | 2009-08-19 | 上海泰仕涂装材料厂 | Outdoor thermosetting powder paint and method for producing the same |
| CN102101966A (en) * | 2009-12-16 | 2011-06-22 | 上海船舶工艺研究所 | Powder paint for plastic coating of firefighting pipelines and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060115665A1 (en) * | 2004-12-01 | 2006-06-01 | Helene Bolm | Powder coating composition for coating surfaces of heat-sensitive substrates |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1513041A (en) * | 2001-06-08 | 2004-07-14 | 大金工业株式会社 | Thermosetting powder coating composition |
| CN1478836A (en) * | 2003-07-10 | 2004-03-03 | 广州电器科学研究院 | Thermo setting low temperature solidify whether resistant low light powder paint |
| CN1687269A (en) * | 2005-04-29 | 2005-10-26 | 大庆高新区纽曼化工科技有限公司 | Enhanced anticorrosive and cutting resisting powder coating for reinforcing steel bar |
| CN101508867A (en) * | 2009-03-17 | 2009-08-19 | 上海泰仕涂装材料厂 | Outdoor thermosetting powder paint and method for producing the same |
| CN102101966A (en) * | 2009-12-16 | 2011-06-22 | 上海船舶工艺研究所 | Powder paint for plastic coating of firefighting pipelines and manufacturing method thereof |
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Effective date of registration: 20220920 Address after: No. 111, Binhai Fourth Road, Economic and Technological Development Zone, Wenzhou City, Zhejiang Province, 325000 Patentee after: Warwick Holding Group Co.,Ltd. Address before: 325000 Yueqing Central Industrial Park, Wenzhou City, Zhejiang Province Patentee before: JADE PLASTIC POWDER CO.,LTD. |
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