CN105038527A - Valve antifouling powder coating with functions of sound absorption and noise reduction and preparation method of valve antifouling powder coating - Google Patents
Valve antifouling powder coating with functions of sound absorption and noise reduction and preparation method of valve antifouling powder coating Download PDFInfo
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- CN105038527A CN105038527A CN201510457646.7A CN201510457646A CN105038527A CN 105038527 A CN105038527 A CN 105038527A CN 201510457646 A CN201510457646 A CN 201510457646A CN 105038527 A CN105038527 A CN 105038527A
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Abstract
The invention discloses a valve antifouling powder coating with the functions of sound absorption and noise reduction. High hydroxyl polyester resin and hydroxyl acrylic resin are used as main film-forming materials; HDI tripolymer is used as a curing agent; modified polyvinylidene fluoride is added, so that the high temperature resistance and abrasion resistance of the product are improved; other effective additives are added and modified, so that the compatibility is good, the effective additives can quickly float on the surface of a paint film, and are fixed on the surface of the paint film through hydroxyl and -NCO reaction, pollutants are hard to adhere on the surface of the paint film, and then the paint film has lasting dirt resistance and self-cleaning performance. The prepared product is free of solvent and environment-friendly, the surface of the paint film is flat and smooth, the functions of sound absorption and noise reduction are achieve, and the market competitiveness is high.
Description
Technical field
The present invention relates to paint field, be specifically related to a kind of antifouling powder coating of valve with absorbing sound and lowering noise function 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 is just to provide a kind of antifouling powder coating of valve with absorbing sound and lowering noise function 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 with absorbing sound and lowering noise function, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 50-64, Hydroxylated acrylic resin 20-25, HDI tripolymer 3.4-6.4, polyvinylidene difluoride (PVDF) 10-16, nano titanium oxide 1.2-2.1, nano silver 0.1-0.4, activity charcoal powder 8-11, aluminum stearate 0.4-0.6, hydroxy-silicone-oil emulsion 13-17, SA dibutylester 8-10, sapphire whisker 2-4, methacryloxypropyl trimethoxy silane 3.1-4.7, N,N-DIMETHYLACETAMIDE 26-38.
Described a kind of preparation method with the antifouling powder coating of valve of absorbing sound and lowering noise function, is characterized in that comprising the following steps:
(1) by hydroxy-silicone-oil emulsion, SA dibutylester stirring and evenly mixing, be warming up to 75-95 DEG C and add activity charcoal powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified active powdered carbon;
(2) by nano titanium oxide in 700-800 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add methacryloxypropyl trimethoxy silane, aluminum stearate stirring and evenly mixing, be warming up to 60-80 DEG C, add sapphire whisker 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 modified active powdered carbon, nano silver 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 modified polyvinylidene difluoride (PVDF) and improve the high temperature resistant of product and wear resisting property, 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, also there is absorbing sound and lowering noise function, the market competitiveness is large.
Embodiment
Described a kind of antifouling powder coating of valve with absorbing sound and lowering noise function, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 62, Hydroxylated acrylic resin 23, HDI tripolymer 3.7, polyvinylidene difluoride (PVDF) 14, nano titanium oxide 1.7, nano silver 0.3, activity charcoal powder 8, aluminum stearate 0.5, hydroxy-silicone-oil emulsion 16, SA dibutylester 9, sapphire whisker 3, methacryloxypropyl trimethoxy silane 3.8, N,N-DIMETHYLACETAMIDE 35.
Making method comprises the following steps:
(1) by hydroxy-silicone-oil emulsion, SA dibutylester stirring and evenly mixing, be warming up to 75-95 DEG C and add activity charcoal powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified active powdered carbon;
(2) by nano titanium oxide in 700-800 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add methacryloxypropyl trimethoxy silane, aluminum stearate stirring and evenly mixing, be warming up to 60-80 DEG C, add sapphire whisker 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 modified active powdered carbon, nano silver 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, without particle, pin hole, 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: 113.3 °.
Claims (2)
1. one kind has the antifouling powder coating of valve of absorbing sound and lowering noise function, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 50-64, Hydroxylated acrylic resin 20-25, HDI tripolymer 3.4-6.4, polyvinylidene difluoride (PVDF) 10-16, nano titanium oxide 1.2-2.1, nano silver 0.1-0.4, activity charcoal powder 8-11, aluminum stearate 0.4-0.6, hydroxy-silicone-oil emulsion 13-17, SA dibutylester 8-10, sapphire whisker 2-4, methacryloxypropyl trimethoxy silane 3.1-4.7, N,N-DIMETHYLACETAMIDE 26-38.
2. a kind of making method with the antifouling powder coating of valve of absorbing sound and lowering noise function according to claim 1, is characterized in that comprising the following steps:
(1) by hydroxy-silicone-oil emulsion, SA dibutylester stirring and evenly mixing, be warming up to 75-95 DEG C and add activity charcoal powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified active powdered carbon;
(2) by nano titanium oxide in 700-800 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add methacryloxypropyl trimethoxy silane, aluminum stearate stirring and evenly mixing, be warming up to 60-80 DEG C, add sapphire whisker 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 modified active powdered carbon, nano silver 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457646.7A CN105038527A (en) | 2015-07-30 | 2015-07-30 | Valve antifouling powder coating with functions of sound absorption and noise reduction and preparation method of valve antifouling powder coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457646.7A CN105038527A (en) | 2015-07-30 | 2015-07-30 | Valve antifouling powder coating with functions of sound absorption and noise reduction and preparation method of valve antifouling powder coating |
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| CN105038527A true CN105038527A (en) | 2015-11-11 |
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| CN201510457646.7A Pending CN105038527A (en) | 2015-07-30 | 2015-07-30 | Valve antifouling powder coating with functions of sound absorption and noise reduction and preparation method of valve antifouling powder coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419579A (en) * | 2015-12-16 | 2016-03-23 | 芜湖市宝艺游乐科技设备有限公司 | Sound-absorbing and noise-reducing functional polyester powder coating and preparation method thereof |
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Application publication date: 20151111 |