CN105462457A - Heat-proof powder coating for corrosion prevention of pump valve - Google Patents
Heat-proof powder coating for corrosion prevention of pump valve Download PDFInfo
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- CN105462457A CN105462457A CN201510865490.6A CN201510865490A CN105462457A CN 105462457 A CN105462457 A CN 105462457A CN 201510865490 A CN201510865490 A CN 201510865490A CN 105462457 A CN105462457 A CN 105462457A
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Abstract
The invention discloses a heat-proof powder coating for corrosion prevention of a pump valve. The heat-proof powder coating is prepared from the following raw materials in parts by weight: 52-54 parts of hydroxyl polyester resin, 7-8 parts of fluorocarbon resin, 4-5 parts of 1,3,5-triglycidyl isocyanurate, 13-15 parts of nano aluminium sesquioxide, 0.8-0.9 part of perfluorooctyl triethoxysilane, 25-30 parts of an ethanol solution with the concentration of 75 wt%, 0.5-0.6 part of a silane coupling agent kh560, 0.7-0.9 part of dimethyl silicone oil, 0.4-0.5 part of a dispersing agent NNO, 6-7 parts of expansible graphite, 2-3 parts of glass fibers, 9-11 parts of barium sulfate, a proper amount of anhydrous ethyl alcohol and 0.8-1 part of Tween 80. The heat-proof powder coating can be used in high-temperature environments, does not contain toxic raw materials, is simple in manufacturing technology and use method, can be arranged on the surface of a pump valve material via electrostatic spraying, and can improve the high-temperature resistance by improving the coating surface tension.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to the anticorrosion powder coating of a kind of thermotolerance pump valve.
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 thermotolerance pump valve anticorrosion powder coating.
The present invention is achieved by the following technical solutions:
The anticorrosion powder coating of a kind of thermotolerance pump valve, 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 be ethanolic soln 25-30, the silane coupling agent kh5600.5-0.6 of 75wt%, dimethyl silicone oil 0.7-0.9, sodium metnylene bis-naphthalene sulfonate 0.4-0.5, expansible black lead 6-7, glass fibre 2-3, barium sulfate 9-11, dehydrated alcohol in right amount, tween 80 0.8-1.
The anticorrosion powder coating of described a kind of thermotolerance pump valve, 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) expansible black lead, glass fibre, barium sulfate are put into ball mill, carry out ball milling 40-50 minute with the speed of 1500 revs/min, then add tween 80, continue to stir discharging after 10-15 minute, put into baking oven with the dry 20-30 minute of the temperature of 80-90 DEG C, obtain dried powder stand-by; Dried powder is put into the dehydrated alcohol of equivalent, put into stirrer, after the speed dispersed with stirring 20-30 of 1000 revs/min minute, obtain mixed slurry, last spraying dry, cross 400 mesh sieves, obtain 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.
The heat-stable material such as expansible black lead, glass fibre adds in the preparation of powder coating as filler by the present invention, the use temperature of coating can be improved, can use in high temperature environments, the present invention is not simultaneously containing toxogen material, production technique and using method simple, by electrostatic spraying at pump valve material surface, resistance to elevated temperatures can be improve by improving film coated surface tension force.
Embodiment
The anticorrosion powder coating of a kind of thermotolerance pump valve, 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 be the ethanolic soln 25 of 75wt%, silane coupling agent kh5600.5, dimethyl silicone oil 0.7, sodium metnylene bis-naphthalene sulfonate 0.4, expansible black lead 6, glass fibre 2, barium sulfate 9, dehydrated alcohol in right amount, tween 80 0.8.
The anticorrosion powder coating of described a kind of thermotolerance pump valve, 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) expansible black lead, glass fibre, barium sulfate are put into ball mill, carry out ball milling 40 minutes with the speed of 1500 revs/min, then add tween 80, continue stirring discharging after 10 minutes, put into baking oven with the temperature of 80 DEG C drying 20 minutes, obtain dried powder stand-by; Dried powder is put into the dehydrated alcohol of equivalent, put into stirrer, obtain mixed slurry with the speed dispersed with stirring of 1000 revs/min after 20 minutes, last spraying dry, cross 400 mesh sieves, obtain 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. the anticorrosion powder coating of thermotolerance pump valve, 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 are that ethanolic soln 25-30, the silane coupling agent kh5600.5-0.6 of 75wt%, dimethyl silicone oil 0.7-0.9, sodium metnylene bis-naphthalene sulfonate 0.4-0.5, expansible black lead 6-7, glass fibre 2-3, barium sulfate 9-11, dehydrated alcohol are appropriate, tween 80 0.8-1.
2. the anticorrosion powder coating of a kind of thermotolerance pump valve 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) expansible black lead, glass fibre, barium sulfate are put into ball mill, carry out ball milling 40-50 minute with the speed of 1500 revs/min, then add tween 80, continue to stir discharging after 10-15 minute, put into baking oven with the dry 20-30 minute of the temperature of 80-90 DEG C, obtain dried powder stand-by; Dried powder is put into the dehydrated alcohol of equivalent, put into stirrer, after the speed dispersed with stirring 20-30 of 1000 revs/min minute, obtain mixed slurry, last spraying dry, cross 400 mesh sieves, obtain 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 |
|---|---|---|---|
| CN201510865490.6A CN105462457A (en) | 2015-12-02 | 2015-12-02 | Heat-proof powder coating for corrosion prevention of pump valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865490.6A CN105462457A (en) | 2015-12-02 | 2015-12-02 | Heat-proof powder coating for corrosion prevention of pump valve |
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| Publication Number | Publication Date |
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| CN105462457A true CN105462457A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510865490.6A Withdrawn CN105462457A (en) | 2015-12-02 | 2015-12-02 | Heat-proof powder coating for corrosion prevention of pump valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106318142A (en) * | 2016-08-24 | 2017-01-11 | 阜阳市伟叶家具有限公司颍泉分公司 | Waterproof sealed polyester by the modification of hydrophobic nano ZnO microspheres- butadiene-acrylonitrile rubber composite powder coating and preparing method thereof |
| CN106479287A (en) * | 2016-09-30 | 2017-03-08 | 合肥华运机械制造有限公司 | A kind of magnetic force pump case coating |
| CN114230963A (en) * | 2021-12-22 | 2022-03-25 | 湖州伟悦高分子材料有限公司 | Oil-resistant high-impact ABS/PBT composite material and preparation method thereof |
-
2015
- 2015-12-02 CN CN201510865490.6A patent/CN105462457A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106318142A (en) * | 2016-08-24 | 2017-01-11 | 阜阳市伟叶家具有限公司颍泉分公司 | Waterproof sealed polyester by the modification of hydrophobic nano ZnO microspheres- butadiene-acrylonitrile rubber composite powder coating and preparing method thereof |
| CN106479287A (en) * | 2016-09-30 | 2017-03-08 | 合肥华运机械制造有限公司 | A kind of magnetic force pump case coating |
| CN114230963A (en) * | 2021-12-22 | 2022-03-25 | 湖州伟悦高分子材料有限公司 | Oil-resistant high-impact ABS/PBT composite material and preparation method thereof |
| CN114230963B (en) * | 2021-12-22 | 2022-06-14 | 湖州伟悦高分子材料有限公司 | Oil-resistant high-impact ABS/PBT composite material and preparation method thereof |
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Application publication date: 20160406 |
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