CN105440901A - Powder coating having excellent antirust effect and used for pump valve - Google Patents
Powder coating having excellent antirust effect and used for pump valve Download PDFInfo
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- CN105440901A CN105440901A CN201510865506.3A CN201510865506A CN105440901A CN 105440901 A CN105440901 A CN 105440901A CN 201510865506 A CN201510865506 A CN 201510865506A CN 105440901 A CN105440901 A CN 105440901A
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Abstract
The invention discloses powder coating having an excellent antirust effect and used for a pump valve. The powder coating is prepared from raw materials in parts by weight as follows: 52-54 parts of polyester resin, 7-8 parts of fluorocarbon resin, 4-5 parts of triglycidyl isocyanurate, 13-15 parts of nano aluminum oxide, 0.8-0.9 parts of perfluoro octyl triethoxysilicane, 25-30 parts of an ethanol solution with the concentration being 75wt%, 0.5-0.6 parts of a silane coupling agent kh560, 0.8-1 part of polyethylene wax, 1.2-1.5 parts of a polyacrylate leveling agent, 6-8 parts of superfine zinc powder, 2-3 parts of an ethylene-chlorotrifluoroethylene copolymer, 2-3 parts of polyvinylpyrrolidone, 13-15 parts of barium sulfate, 3-4 parts of mica iron oxide and a proper amount of water. The powder coating has excellent comprehensive performance, the film forming speed is high, the antirust effect of the powder coating is further improved due to addition of the superfine zinc powder and mica iron oxide, and a coating layer is tough and firm and not prone to peeling, has a smooth surface and is free of pinholes, safe and environment-friendly.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of pump valve powder coating with excellent rust protection effect.
Background technology
In recent years, the application of powder coating has surmounted water-borne coatings and high solid coating etc. in coatings industry, becomes industry member and uses one of more coating variety.Powder coating process solves the problems such as inflammable, the explosive and contaminate environment existing for traditional paint coating process, and its coating possesses superior performance, the recyclable use again of raw material, and coating process is simple.Pump can be widely used in, valve housing is coated with and loads onto.Because pump valve is foundry goods or forging, therefore its surface irregularity, also certain defect is there is in currently available technology for the functional powder coating technology of valve surface process, cause coating to occur the defects such as shrinkage cavity, pinprick and serious orange peel shape, and then cause pump valve to be restricted in special dimension application such as food, biology, pharmacy, chemical industry, space flight and electronics.And most of pump valve all can be used in the factor such as the media environment impact of High water cut, Gao Hansha, deep-etching, increase the weight of the corrosion of pump valve, easier fouling on pump valve, thus cause pump valve short for work-ing life, the problem that round of visits is short, workload is large, make troubles to use, general surface intensified technique mainly contains metal plating, ceramic coating, some other coating, although slow down wearing and tearing to a certain extent, improve erosion resistance, but all there is weak point: the easy layering of metal plating causes coming off; Pottery shock resistance is poor, easy chipping phenomenon; Some polymeric coating mechanics and thermal characteristics difference etc.Thus research and development have the powder coating of the functions such as weather-proof, water-tight corrosion-proof, and possess skills the meaning promoting to improve with industry.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of pump valve powder coating with excellent rust protection effect.
The present invention is achieved by the following technical solutions:
A kind of pump valve powder coating with excellent rust protection effect, be made up of the raw material of following weight part: hydroxy polyester resin 52-54, fluorocarbon resin 7-8, isocyanuric acid three-glycidyl ester 4-5, nano-aluminium oxide 13-15, perfluoro capryl triethoxyl silane 0.8-0.9, concentration is the ethanolic soln 25-30 of 75wt%, silane coupling agent kh5600.5-0.6, polyethylene wax 0.8-1, polyacrylate flow agent 1.2-1.5, super-fine zinc dust 6-8, ethene chlorotrifluoroethylene 2-3, polyvinylpyrrolidone 2-3, barium sulfate 13-15, iron mica 3-4, water is appropriate.
Described a kind of pump valve powder coating with excellent rust protection effect, is prepared from by following concrete steps:
(1) nano-aluminium oxide is put into the ethanolic soln that concentration is 75wt%, dispersed with stirring is even, then perfluoro capryl triethoxyl silane is added, reflux 2-2.5 hour, adds silane coupling agent kh560 after cooling, continue stirring reaction 2-3 hour, last underpressure distillation, slough the solvent in system, with the dry 60-80 minute of the temperature of 80-85 DEG C in vacuum drying oven, obtain active nano aluminium sesquioxide;
(2) will add in the water of 8-10 times amount in polyvinylpyrrolidone, be heated to 50-60 DEG C, be stirred to and dissolve completely, add barium sulfate, 20-30 minute is stirred with the speed of 600 revs/min, be cooled to room temperature, then continue to add super-fine zinc dust, iron mica, continue to stir 40-50 minute, then mixed slurry is dried, grinding, crosses 400 mesh sieves, obtains modified filler;
(3) hydroxy polyester resin, fluorocarbon resin, isocyanuric acid three-glycidyl ester are put into after homogenizer stirs 20-30 minute with the speed of 1000 revs/min and added active nano aluminium sesquioxide and modified filler, continue to stir discharging after 10-15 minute, compound is sent into twin screw melt extruder, continue to add all the other remaining components, melt extrude, compressing tablet, obtained fine powder through pulverizing 180 mesh sieves and get final product.
Advantage of the present invention is: the present invention adds a small amount of fluorocarbon resin Substitute For Partial hydroxy polyester resin, in the process of powder coating solidification, fluorocarbon chain section in fluorocarbon resin there occurs surface enrichment, so a small amount of fluorine just can significantly improve the hydro-oleophobicity of coating, the heat-proof water of coating, acid-proof alkaline and snappiness can be improved simultaneously; Coordinate and add through the obtained active nano aluminium sesquioxide of special process process, be easy to form chemical bonding with F-C key, make coating structure more firm, and the contact angle of coatingsurface to water sharply increases, further increase the hydrophobicity of coating, the powder coating made has anticorrosive, acid and alkali-resistance, weathering resistance, hydrophobic and lyophobic property etc. more than general powder coating excellence.
Product excellent combination property of the present invention, film forming speed is fast, coordinate the interpolation of super-fine zinc dust, iron mica, further increase rust protection effect of product, coating is firmly tough and tensile, difficult drop-off, any surface finish resistance to soiling is good, free of pinholes, safety and environmental protection, there is good cost performance, economical and social benefit is remarkable.
Embodiment
There is a pump valve powder coating for excellent rust protection effect, be made up of the raw material of following weight part (kilogram): hydroxy polyester resin 52, fluorocarbon resin 7, isocyanuric acid three-glycidyl ester 4, nano-aluminium oxide 13, perfluoro capryl triethoxyl silane 0.8, concentration are that the ethanolic soln 25 of 75wt%, silane coupling agent kh5600.5, polyethylene wax 0.8, polyacrylate flow agent 1.2, super-fine zinc dust 6, ethene chlorotrifluoroethylene 2, polyvinylpyrrolidone 2, barium sulfate 13, iron mica 3, water are appropriate.
Described a kind of pump valve powder coating with excellent rust protection effect, is prepared from by following concrete steps:
(1) nano-aluminium oxide is put into the ethanolic soln that concentration is 75wt%, dispersed with stirring is even, then perfluoro capryl triethoxyl silane is added, reflux 2 hours, adds silane coupling agent kh560 after cooling, continue stirring reaction 2 hours, last underpressure distillation, slough the solvent in system, with the temperature of 80 DEG C drying 60 minutes in vacuum drying oven, obtain active nano aluminium sesquioxide;
(2) will add in the water of 8 times amount in polyvinylpyrrolidone, be heated to 50 DEG C, be stirred to and dissolve completely, add barium sulfate, 30 minutes are stirred with the speed of 600 revs/min, be cooled to room temperature, then continue to add super-fine zinc dust, iron mica, continue stirring 40 minutes, then mixed slurry is dried, grinding, crosses 400 mesh sieves, obtains modified filler;
(3) hydroxy polyester resin, fluorocarbon resin, isocyanuric acid three-glycidyl ester are put into after homogenizer stirs 20 minutes with the speed of 1000 revs/min and added active nano aluminium sesquioxide and modified filler, continue stirring discharging after 10 minutes, compound is sent into twin screw melt extruder, continue to add all the other remaining components, melt extrude, compressing tablet, obtained fine powder through pulverizing 180 mesh sieves and get final product.
Electrostatic spraying constructional method is adopted to act on the device surface such as pump, valve powder coating of the present invention, through the abundant solidification of 180 DEG C, naturally cool to room temperature, place after 24 hours, measure coating performance: paint film appearance flat smooth, surface tinted is consistent, without particle, pin hole, bubble, wrinkle; Sticking power reaches 1 grade, and resistance to neutral salt spray 2000 hours is without exception, and resistance to impact shock is greater than 60cm.
Claims (2)
1. one kind has the pump valve powder coating of excellent rust protection effect, it is characterized in that, be made up of the raw material of following weight part: hydroxy polyester resin 52-54, fluorocarbon resin 7-8, isocyanuric acid three-glycidyl ester 4-5, nano-aluminium oxide 13-15, perfluoro capryl triethoxyl silane 0.8-0.9, concentration is the ethanolic soln 25-30 of 75wt%, silane coupling agent kh5600.5-0.6, polyethylene wax 0.8-1, polyacrylate flow agent 1.2-1.5, super-fine zinc dust 6-8, ethene chlorotrifluoroethylene 2-3, polyvinylpyrrolidone 2-3, barium sulfate 13-15, iron mica 3-4, water is appropriate.
2. a kind of pump valve powder coating with excellent rust protection effect according to claim 1, is characterized in that, be prepared from by following concrete steps:
(1) nano-aluminium oxide is put into the ethanolic soln that concentration is 75wt%, dispersed with stirring is even, then perfluoro capryl triethoxyl silane is added, reflux 2-2.5 hour, adds silane coupling agent kh560 after cooling, continue stirring reaction 2-3 hour, last underpressure distillation, slough the solvent in system, with the dry 60-80 minute of the temperature of 80-85 DEG C in vacuum drying oven, obtain active nano aluminium sesquioxide;
(2) will add in the water of 8-10 times amount in polyvinylpyrrolidone, be heated to 50-60 DEG C, be stirred to and dissolve completely, add barium sulfate, 20-30 minute is stirred with the speed of 600 revs/min, be cooled to room temperature, then continue to add super-fine zinc dust, iron mica, continue to stir 40-50 minute, then mixed slurry is dried, grinding, crosses 400 mesh sieves, obtains modified filler;
(3) hydroxy polyester resin, fluorocarbon resin, isocyanuric acid three-glycidyl ester are put into after homogenizer stirs 20-30 minute with the speed of 1000 revs/min and added active nano aluminium sesquioxide and modified filler, continue to stir discharging after 10-15 minute, compound is sent into twin screw melt extruder, continue to add all the other remaining components, melt extrude, compressing tablet, obtained fine powder through pulverizing 180 mesh sieves and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865506.3A CN105440901A (en) | 2015-12-02 | 2015-12-02 | Powder coating having excellent antirust effect and used for pump valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865506.3A CN105440901A (en) | 2015-12-02 | 2015-12-02 | Powder coating having excellent antirust effect and used for pump valve |
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| CN105440901A true CN105440901A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510865506.3A Withdrawn CN105440901A (en) | 2015-12-02 | 2015-12-02 | Powder coating having excellent antirust effect and used for pump valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641505A (en) * | 2018-05-09 | 2018-10-12 | 郑州新阳新材料科技有限公司 | A kind of aqueous anti-migration, high-weather resistance fluorocarbon coating and its preparation process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671518A (en) * | 2009-08-14 | 2010-03-17 | 老虎粉末涂料制造（太仓）有限公司 | Powder coating with super-weathering resistance, preparation method and application thereof |
| CN103555017A (en) * | 2013-11-04 | 2014-02-05 | 安庆菱湖涂料有限公司 | Water-based organically-modified inorganic zinc-rich primer and preparation method thereof |
| CN104130638A (en) * | 2014-07-18 | 2014-11-05 | 安徽千和新材料科技发展有限公司 | Aqueous fire-proof corrosion-proof paint for steel structure and preparation method thereof |
-
2015
- 2015-12-02 CN CN201510865506.3A patent/CN105440901A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671518A (en) * | 2009-08-14 | 2010-03-17 | 老虎粉末涂料制造（太仓）有限公司 | Powder coating with super-weathering resistance, preparation method and application thereof |
| CN103555017A (en) * | 2013-11-04 | 2014-02-05 | 安庆菱湖涂料有限公司 | Water-based organically-modified inorganic zinc-rich primer and preparation method thereof |
| CN104130638A (en) * | 2014-07-18 | 2014-11-05 | 安徽千和新材料科技发展有限公司 | Aqueous fire-proof corrosion-proof paint for steel structure and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641505A (en) * | 2018-05-09 | 2018-10-12 | 郑州新阳新材料科技有限公司 | A kind of aqueous anti-migration, high-weather resistance fluorocarbon coating and its preparation process |
| CN108641505B (en) * | 2018-05-09 | 2020-05-15 | 郑州新阳新材料科技有限公司 | Water-based anti-migration and high-weather-resistance fluorocarbon coating and preparation process thereof |
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Application publication date: 20160330 |