CN105153892A - High/low-temperature-resistant valve antifouling powdery paint and manufacturing method thereof - Google Patents
High/low-temperature-resistant valve antifouling powdery paint and manufacturing method thereof Download PDFInfo
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- CN105153892A CN105153892A CN201510457739.XA CN201510457739A CN105153892A CN 105153892 A CN105153892 A CN 105153892A CN 201510457739 A CN201510457739 A CN 201510457739A CN 105153892 A CN105153892 A CN 105153892A
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Abstract
The invention discloses high/low-temperature-resistant valve antifouling powdery paint. High-hydroxyl polyester resin and hydroxy acrylic resin are taken as main film-forming substances, HDI trimer is taken as a curing agent, the product high/low-temperature resistance is improved after modified polyvinylidene fluoride is added, and other effective additives are added, are good in intermiscibility after being modified, are capable of rapidly floating on a paint film surface, and are fixedly attached to the paint film surface through hydroxyl and -NCO, so that pollutants are difficult to attach to the paint film surface, and therefore the paint film possesses durable antifouling self-cleaning performance, and the prepared product is free of solvent, green and environment-friendly, and the formed paint film is flat and smooth in surface. Compared with the prior art, the preparation method for the powdery paint is simple and practical, convenient to operate and high in weatherability, stands with long-term wind and rain, and is long in antiageing life.
Description
Technical field
The present invention relates to paint field, antifouling powder coating of valve being specifically related to a kind of high-low temperature resistant and preparation method thereof.
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.Valve housing painting can be widely used in load onto.Because valve body 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 valve to be restricted in special dimension application such as food, biology, pharmacy, chemical industry, space flight and electronics.Thus research and develop multi-functional weather-proof, high-low temperature resistant, waterproof antiwear, anlistatig self-cleaning anti-pollution powder coating, possess skills the meaning promoting to improve with industry.
Summary of the invention
Object of the present invention antifouling powder coating of valve being just to provide a kind of high-low temperature resistant and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
A kind of antifouling powder coating of valve of high-low temperature resistant, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 62, Hydroxylated acrylic resin 25, HDI tripolymer 4.4, polyvinylidene difluoride (PVDF) 7, nano titanium oxide 2.4, cellulose acetate 2, nano zircite 0.9, water glass 0.3, liquid paraffin 11, triethanolamine borate 16, Alumina gel 4, plant ash 7, anilinomethyl triethoxysilane 2.6, N,N-DIMETHYLACETAMIDE 33.
The preparation method of the antifouling powder coating of valve of described a kind of high-low temperature resistant, is characterized in that comprising the following steps:
(1) by liquid paraffin, triethanolamine borate stirring and evenly mixing, be warming up to 75-95 DEG C and add plant ash, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modification plant ash;
(2) by nano titanium oxide in 715-825 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add anilinomethyl triethoxysilane, Alumina gel stirring and evenly mixing, be warming up to 60-80 DEG C, add cellulose acetate extra-fine grinding 1-3 hour, dry for standby;
(3) in N,N-DIMETHYLACETAMIDE, add polyvinylidene difluoride (PVDF), after 35 DEG C of heating in water bath are dissolved to clarification, add modification plant ash, nano zircite ultrasonic disperse is even, carry out electrostatic spinning, pulverize;
(4) high hydroxy polyester resin, Hydroxylated acrylic resin are put into high mixer high speed and be uniformly mixed 40-60 minute, add step (2), step (3) material and other remaining component, pre-mixing 1-2 hour, drop into melting mixing extruding pelletization in twin screw extruder, pellet is sent into pulverizing mill and is worn into fine powder discharging.
The present invention has following beneficial effect: the present invention selects high hydroxy polyester resin, Hydroxylated acrylic resin is main film forming matter, HDI tripolymer is solidifying agent, add the high and low temperature resistance that modified polyvinylidene difluoride (PVDF) improves product, also add other effective additives and in addition modified simultaneously, intermiscibility is good, coating surface can be floated to rapidly, coating surface is fixed on by hydroxyl and-NCO reaction, pollutent is made to be difficult to attach to coating surface, thus make paint film have the lasting self-cleaning performance of resistance to pickup, the obtained solvent-free environmental protection of product, coating surface flat smooth, compared with prior art, preparation method of the present invention is simple easy and simple to handle, weathering resistance stands by force long-term wind and weather, the anti-aging life-span is long.
Embodiment
The antifouling powder coating of valve of described a kind of high-low temperature resistant, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 58-66, Hydroxylated acrylic resin 23-28, HDI tripolymer 3.4-6.2, polyvinylidene difluoride (PVDF) 6-12, nano titanium oxide 1.4-3.1, cellulose acetate 1-3, nano zircite 0.9-1.3, water glass 0.1-0.4, liquid paraffin 9-13, triethanolamine borate 14-18, Alumina gel 3-5, plant ash 7-10, anilinomethyl triethoxysilane 2.3-3.5, N,N-DIMETHYLACETAMIDE 28-37.
Making method comprises the following steps:
(1) by liquid paraffin, triethanolamine borate stirring and evenly mixing, be warming up to 75-95 DEG C and add plant ash, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modification plant ash;
(2) by nano titanium oxide in 715-825 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add anilinomethyl triethoxysilane, Alumina gel stirring and evenly mixing, be warming up to 60-80 DEG C, add cellulose acetate extra-fine grinding 1-3 hour, dry for standby;
(3) in N,N-DIMETHYLACETAMIDE, add polyvinylidene difluoride (PVDF), after 35 DEG C of heating in water bath are dissolved to clarification, add modification plant ash, nano zircite ultrasonic disperse is even, carry out electrostatic spinning, pulverize;
(4) high hydroxy polyester resin, Hydroxylated acrylic resin are put into high mixer high speed and be uniformly mixed 40-60 minute, add step (2), step (3) material and other remaining component, pre-mixing 1-2 hour, drop into melting mixing extruding pelletization in twin screw extruder, pellet is sent into pulverizing mill and is worn into fine powder discharging.
The technical parameter index of the antifouling powder coating using the present invention to produce is as follows:
(1) paint film appearance flat smooth, surface tinted is consistent, free of pinholes, bubble;
(2) sticking power is good, shock-resistant, and resistance to marring is good;
(3) static minimal contact angle is recorded according to GB/T2376: 112.7 °;
(4) salt fog resistance/h:1000 is recorded according to GB/T1771.
Claims (2)
1. the antifouling powder coating of the valve of a high-low temperature resistant, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 58-66, Hydroxylated acrylic resin 23-28, HDI tripolymer 3.4-6.2, polyvinylidene difluoride (PVDF) 6-12, nano titanium oxide 1.4-3.1, cellulose acetate 1-3, nano zircite 0.9-1.3, water glass 0.1-0.4, liquid paraffin 9-13, triethanolamine borate 14-18, Alumina gel 3-5, plant ash 7-10, anilinomethyl triethoxysilane 2.3-3.5, N,N-DIMETHYLACETAMIDE 28-37.
2. the making method of the antifouling powder coating of valve of a kind of high-low temperature resistant according to claim 1, is characterized in that comprising the following steps:
(1) by liquid paraffin, triethanolamine borate stirring and evenly mixing, be warming up to 75-95 DEG C and add plant ash, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modification plant ash;
(2) by nano titanium oxide in 715-825 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add anilinomethyl triethoxysilane, Alumina gel stirring and evenly mixing, be warming up to 60-80 DEG C, add cellulose acetate extra-fine grinding 1-3 hour, dry for standby;
(3) in N,N-DIMETHYLACETAMIDE, add polyvinylidene difluoride (PVDF), after 35 DEG C of heating in water bath are dissolved to clarification, add modification plant ash, nano zircite ultrasonic disperse is even, carry out electrostatic spinning, pulverize;
(4) high hydroxy polyester resin, Hydroxylated acrylic resin are put into high mixer high speed and be uniformly mixed 40-60 minute, add step (2), step (3) material and other remaining component, pre-mixing 1-2 hour, drop into melting mixing extruding pelletization in twin screw extruder, pellet is sent into pulverizing mill and is worn into fine powder discharging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510457739.XA CN105153892A (en) | 2015-07-30 | 2015-07-30 | High/low-temperature-resistant valve antifouling powdery paint and manufacturing method thereof |
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| CN201510457739.XA CN105153892A (en) | 2015-07-30 | 2015-07-30 | High/low-temperature-resistant valve antifouling powdery paint and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855459A (en) * | 2016-05-27 | 2016-08-17 | 马鞍山市兴隆铸造有限公司 | High-temperature good-strength quartz-based expendable pattern paint modified by mica powder and preparation method of high-temperature good-strength quartz-based expendable pattern paint |
| CN106243945A (en) * | 2016-08-30 | 2016-12-21 | 安徽翰文运动用品股份有限公司 | A kind of polish lacquer being sprayed on racket |
| CN106243962A (en) * | 2016-08-24 | 2016-12-21 | 安徽美景工艺品有限公司 | A kind of heat-resistant fireproof rattan handicraft aqueous polyurethane corrosion resistant coating and preparation method thereof |
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| CN105855459A (en) * | 2016-05-27 | 2016-08-17 | 马鞍山市兴隆铸造有限公司 | High-temperature good-strength quartz-based expendable pattern paint modified by mica powder and preparation method of high-temperature good-strength quartz-based expendable pattern paint |
| CN106243962A (en) * | 2016-08-24 | 2016-12-21 | 安徽美景工艺品有限公司 | A kind of heat-resistant fireproof rattan handicraft aqueous polyurethane corrosion resistant coating and preparation method thereof |
| CN106243945A (en) * | 2016-08-30 | 2016-12-21 | 安徽翰文运动用品股份有限公司 | A kind of polish lacquer being sprayed on racket |
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Application publication date: 20151216 |