CN104017407A - Aid-containing thermosetting powder coating - Google Patents
Aid-containing thermosetting powder coating Download PDFInfo
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- CN104017407A CN104017407A CN201410284625.5A CN201410284625A CN104017407A CN 104017407 A CN104017407 A CN 104017407A CN 201410284625 A CN201410284625 A CN 201410284625A CN 104017407 A CN104017407 A CN 104017407A
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Abstract
The invention discloses an aid-containing thermosetting powder coating which comprises the following raw materials: resin, a curing agent, a pigment, fillers and aids, wherein the content of the aids is 4%, and the total content of the resin, the curing agent, the pigment, the fillers and the aids is 96%; the aids comprise a first premixture and a second premixture; the first premixture comprises a liquid leveling agent and fumed silica; the second premixture comprises benzoin, a 701 wetting agent, hydrogenated castor oil, ethylene bis stearamide, polytetrafluoroethylene 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) that includes 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, in the Chinese invention patent prospectus that is 201310749823 in the patent No., disclose a kind of thermosetting powder coating(s), 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 ﹪.The features such as it is smooth that the thermosetting powder coating(s) of this invention has scumbling, and hardness is high, the excellence 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 be by adsorbing the pin-hole phenomena that moisture content causes in some low-boiling by-products or color stuffing in the time of paint solidification, the toughness of the film of the coating in above-mentioned patent, surface hardness are not high in addition.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of thermosetting powder coating(s) that includes auxiliary agent for the above-mentioned state of the art, this auxiliary agent have promote moistening elimination film shrinkage cavity, impel film form smooth bright and clean full, while eliminating paint solidification by adsorbing the caused pin hole of moisture content in some low-boiling by-products or color stuffing, can improving the function that is coated with film toughness, increases film coated surface hardness.
For achieving the above object, the invention provides following technical scheme:
A kind of thermosetting powder coating(s) that includes 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 the first pre-composition includes liquid flow agent, aerosil, and described the second pre-composition includes st-yrax, 701 wetting agents, hydrogenated castor oil, ethylene bis stearamide, tetrafluoroethylene wax and butyral.
Concrete, described the first pre-composition includes the liquid flow agent of 12 parts and the aerosil of 8 parts, and described the 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 tetrafluoroethylene wax of 4 parts and the butyral of 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, surface adsorption power is strong, surface can be large, and the aspects such as chemical purity is high, dispersing property good, thermal resistance, resistance have special performance, with its superior stability, reinforcement, thickening property and thixotropy.This auxiliary agent is to utilize the function that its specific surface area is large, surface adsorption power is strong, dispersing property is good with aerosil, and absorption 403 liquid flow agents disperse, and is convenient to powder coating and produces, the bright and clean effect of performance powder coating smooth coating;
403 liquid flow agents are taking esters of acrylic acid as main raw material, and under certain temperature catalyst action, polymerization is synthesized, and polymer type is multipolymer; 403 liquid flow agents are colourless or light yellow thick liquid, are the effective constituents that mainly contains of all kinds of solid flow agents, and it can reduce coatingsurface tension force in powder coating, reach homogenizing and the levelling of coatingsurface, and can improve the ageing-resistant of coating.
In the second pre-composition, st-yrax is that bitter almond oil camphor claims again hexichol alcohol ketone, is 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 the polarity additive in powder coating (as pigment, filler) and substrate to be coated (as the metal such as iron, aluminium) are had to good wetting action, thereby 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 ethylene bis stearamide can obviously improve the freedom from jamming of powder coating, reduces system viscosity, and the plate surface current improving after film forming is put down, and reduces film pin hole, improves plate face gloss.
Tetrafluoroethylene wax, because the hardness of wax component is high, resistance to marring and wear resistance are good, and 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 temperatures simultaneously, planeness, smooth finish increase, and make above-mentioned thermosetting powder coating(s) have high hard tough and tensile performance.
The auxiliary agent making by above-mentioned technique, in the time being added in (plane Gao Guang, sub-light, unglazed type) thermosetting powder coating(s), have promote moistening elimination film shrinkage cavity, impel film form smooth bright and clean full, while eliminating paint solidification by adsorbing the caused pin hole of moisture content in some low-boiling by-products or color stuffing, can improving the function that is coated with film toughness, increases film coated surface hardness.
Embodiment
Embodiment mono-:
The present embodiment is a kind of thermosetting powder coating(s) that includes 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 the first pre-composition includes liquid flow agent, aerosil, and described the 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 is synthetic to be manufactured:
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; make aerosil thoroughly adsorb 403 liquid flow agents and be uniformly dispersed; add again st-yrax, 701 wetting agents, hydrogenated castor oil, ethylene bis stearamide, tetrafluoroethylene wax, butyral to 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, surface adsorption power is strong, surface can be large, the aspects such as chemical purity is high, dispersing property good, thermal resistance, resistance have special performance, with its superior stability, reinforcement, thickening property and thixotropy.This auxiliary agent is to utilize the function that its specific surface area is large, surface adsorption power is strong, dispersing property is good with aerosil, and absorption 403 liquid flow agents disperse, and is convenient to powder coating and produces, the bright and clean effect of performance powder coating smooth coating;
403 liquid flow agents are taking esters of acrylic acid as main raw material, and under certain temperature catalyst action, polymerization is synthesized, and polymer type is multipolymer; 403 liquid flow agents are colourless or light yellow thick liquid, are the effective constituents that mainly contains of all kinds of solid flow agents, and it can reduce coatingsurface tension force in powder coating, reach homogenizing and the levelling of coatingsurface, and can improve the ageing-resistant of coating.
St-yrax is that bitter almond oil camphor claims again hexichol alcohol ketone, is 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 the polarity additive in powder coating (as pigment, filler) and substrate to be coated (as the metal such as iron, aluminium) are had to good wetting action, thereby 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 ethylene bis stearamide can obviously improve the freedom from jamming of powder coating, reduces system viscosity, and the plate surface current improving after film forming is put down, and reduces film pin hole, improves plate face gloss.
Tetrafluoroethylene wax, because the hardness of wax component is high, resistance to marring and wear resistance are good, and 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 temperatures simultaneously, planeness, smooth finish increase, and make powder coating have high hard tough and tensile performance.
In embodiment mono-, prepare the method for described thermosetting powder coating(s) auxiliary agent, comprise the steps:
1), in high speed dispersion mixing and blending machine, add 8 parts of aerosils;
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 is uniformly dispersed, and obtains the first pre-composition;
3) add the second pre-composition to stir homogenizing 5 minutes, the first pre-composition and the second pre-composition are stirred completely;
4) shut down blowing, the mixture of the first pre-composition and the second pre-composition stirring formation is put into oven for drying;
5) by dry mixture again through micro mist pulverizing mill abrasive dust;
6) by the auxiliary agent packaging making after abrasive dust.
Wherein, in described step 3), add the operation of the second pre-composition to comprise the steps:
Step 1, toward the st-yrax that adds 12 parts in the first pre-composition;
Step 2, toward 701 wetting agents that add 12 parts in the first pre-composition;
Step 3, toward the hydrogenated castor oil that adds 20 parts in the first pre-composition;
Step 4, toward the ethylene bis stearamide that adds 6 parts in the first pre-composition;
Step 5, toward the tetrafluoroethylene wax that adds 4 parts in the first pre-composition;
Step 6, toward the butyral that adds 6 parts in the first pre-composition.
Embodiment bis-:
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, add 8 parts of aerosils;
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 is uniformly dispersed, and obtains the first pre-composition;
3) add the second pre-composition to stir homogenizing 5 minutes, the first pre-composition and the second pre-composition are stirred completely;
4) shut down blowing, the mixture of the first pre-composition and the second pre-composition stirring formation is put into oven for drying;
5) by dry mixture again through micro mist pulverizing mill abrasive dust;
6) by the auxiliary agent packaging making after abrasive dust.
Wherein, in described step 3), the operation that adds the second pre-composition is to comprise the steps:
One, in another pony mixer that is arranged on aforementioned high speed dispersion mixing and blending machine side, add the st-yrax of 12 parts;
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, in pony mixer, add the butyral of 6 parts to make thus the second pre-composition;
Seven, above-mentioned the second pre-composition of making being joined to the first pre-composition that is arranged in high speed dispersion mixing and blending machine stirs.
Embodiment mono-is compared with enforcement two, the preparation technology that difference is both is different in the process that the first pre-composition and the second pre-composition are mixed, embodiment mono-adds each component of the second pre-composition in turn in the first pre-composition and stirs, convenient adjustment.And embodiment bis-is stirrings of carrying out the first pre-composition and the second pre-composition simultaneously, improves working efficiency, but also increased cost simultaneously.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment, and all technical schemes belonging 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 (2)
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%, 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 the first pre-composition includes liquid flow agent, aerosil, and described the second pre-composition includes st-yrax, 701 wetting agents, hydrogenated castor oil, ethylene bis stearamide, tetrafluoroethylene wax and butyral.
2. the thermosetting powder coating(s) that includes auxiliary agent according to claim 1, it is characterized in that: described the first pre-composition includes the liquid flow agent of 12 parts and the aerosil of 8 parts, described the 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 tetrafluoroethylene wax of 4 parts and the butyral of 6 parts.
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Cited By (4)
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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 |
| 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 |
| 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 |
| 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| CN104017407B (en) | 2016-03-02 |
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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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