CN105153916A - Novel environment-friendly valve antifouling powdery paint and manufacturing method thereof - Google Patents
Novel environment-friendly valve antifouling powdery paint and manufacturing method thereof Download PDFInfo
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- CN105153916A CN105153916A CN201510457580.1A CN201510457580A CN105153916A CN 105153916 A CN105153916 A CN 105153916A CN 201510457580 A CN201510457580 A CN 201510457580A CN 105153916 A CN105153916 A CN 105153916A
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Abstract
The invention discloses novel environment-friendly 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 performance, and the prepared product possesses relatively good adhesive force and does not easily fall off from a train surface, possesses good water permeability and good antifouling performance, is safe, friendly to environment and free of harmful substances. The manufacturing technology of the paint is simple and convenient to operate, and the paint is good in hardness and long in service life.
Description
Technical field
The present invention relates to paint field, be specifically related to antifouling powder coating of a kind of novel environment friendly valve 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 antifouling powder coating of a kind of novel environment friendly valve and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
The antifouling powder coating of a kind of novel environment friendly valve, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 55-60, Hydroxylated acrylic resin 18-26, polyvinylidene difluoride (PVDF) 10-14, HDI tripolymer 5-7, nano titanium oxide 1.2-3.1, organic silicon emulsion 11-16, clorafin 4-7, talcum powder 10-15, carrageenin 2-4, phenyl triethoxysilane 4-6, Sodium hexametaphosphate 99 0.3-0.6, N,N-DIMETHYLACETAMIDE 25-30.
The preparation method of the described antifouling powder coating of a kind of novel environment friendly valve, is characterized in that comprising the following steps:
(1) by organic silicon emulsion, clorafin stirring and evenly mixing, be warming up to 75-95 DEG C and add talcum powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified talc powder;
(2) by nano titanium oxide in 710-820 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add phenyl triethoxysilane, carrageenin stirring and evenly mixing, be warming up to 65-85 DEG C, 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 talc powder ultrasonic disperse evenly, 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 lasting polluting proofing property energy, obtained product and Train surface have good sticking power difficult drop-off, there is good water-permeable, antifouling property is good, and safety and environmental protection, do not contain hazardous substance, coating manufacture craft of the present invention is simple, easy to operate, flintiness is good, long service life.
Embodiment
The described antifouling powder coating of a kind of novel environment friendly valve, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 57, Hydroxylated acrylic resin 24, polyvinylidene difluoride (PVDF) 10, HDI tripolymer 5, nano titanium oxide 2.2, organic silicon emulsion 15, clorafin 4, talcum powder 13, carrageenin 2, phenyl triethoxysilane 6, Sodium hexametaphosphate 99 0.3, N,N-DIMETHYLACETAMIDE 27.
Making method comprises the following steps:
(1) by organic silicon emulsion, clorafin stirring and evenly mixing, be warming up to 75-95 DEG C and add talcum powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified talc powder;
(2) by nano titanium oxide in 710-820 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add phenyl triethoxysilane, carrageenin stirring and evenly mixing, be warming up to 65-85 DEG C, 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 talc powder ultrasonic disperse evenly, 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, wrinkle;
(2) sticking power is good, and resistance to marring is good;
(3) static minimal contact angle is recorded according to GB/T2376: 111 °.
Claims (2)
1. the antifouling powder coating of novel environment friendly valve, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 55-60, Hydroxylated acrylic resin 18-26, polyvinylidene difluoride (PVDF) 10-14, HDI tripolymer 5-7, nano titanium oxide 1.2-3.1, organic silicon emulsion 11-16, clorafin 4-7, talcum powder 10-15, carrageenin 2-4, phenyl triethoxysilane 4-6, Sodium hexametaphosphate 99 0.3-0.6, N,N-DIMETHYLACETAMIDE 25-30.
2. the making method of the antifouling powder coating of a kind of novel environment friendly valve according to claim 1, is characterized in that comprising the following steps:
(1) by organic silicon emulsion, clorafin stirring and evenly mixing, be warming up to 75-95 DEG C and add talcum powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified talc powder;
(2) by nano titanium oxide in 710-820 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add phenyl triethoxysilane, carrageenin stirring and evenly mixing, be warming up to 65-85 DEG C, 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 talc powder ultrasonic disperse evenly, 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 |
|---|---|---|---|
| CN201510457580.1A CN105153916A (en) | 2015-07-30 | 2015-07-30 | Novel environment-friendly valve antifouling powdery paint and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510457580.1A CN105153916A (en) | 2015-07-30 | 2015-07-30 | Novel environment-friendly valve antifouling powdery paint and manufacturing method thereof |
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| CN105153916A true CN105153916A (en) | 2015-12-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567052A (en) * | 2016-02-01 | 2016-05-11 | 安徽埃斯克制泵有限公司 | Powder coating for centrifugal pump impeller |
| CN110592928A (en) * | 2019-08-27 | 2019-12-20 | 安徽太平洋特种网业有限公司 | Processing method for improving anti-pollution stability of flat filament dry net |
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| CN101245207A (en) * | 2007-02-16 | 2008-08-20 | 朱庆成 | Inner wall paint |
| CN101445696A (en) * | 2008-12-12 | 2009-06-03 | 江门四方威凯精细化工有限公司 | Nano modified abrasion resistant polyurethane varnish |
| CN103387776A (en) * | 2013-08-22 | 2013-11-13 | 吴江市冰心文教用品有限公司 | Waterproof pigment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105567052A (en) * | 2016-02-01 | 2016-05-11 | 安徽埃斯克制泵有限公司 | Powder coating for centrifugal pump impeller |
| CN110592928A (en) * | 2019-08-27 | 2019-12-20 | 安徽太平洋特种网业有限公司 | Processing method for improving anti-pollution stability of flat filament dry net |
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Application publication date: 20151216 |