CN105038528A - Oil-resistant valve antifouling powder coating with excellent mechanical property and preparation method of coating - Google Patents
Oil-resistant valve antifouling powder coating with excellent mechanical property and preparation method of coating Download PDFInfo
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- CN105038528A CN105038528A CN201510457695.0A CN201510457695A CN105038528A CN 105038528 A CN105038528 A CN 105038528A CN 201510457695 A CN201510457695 A CN 201510457695A CN 105038528 A CN105038528 A CN 105038528A
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Abstract
The invention discloses an oil-resistant valve antifouling powder coating with an excellent mechanical property. High hydroxyl polyester resin and hydroxy acrylic resin are selected as the main film forming matters, HDI trimer is selected as a curing agent, and modified polyvinylidene fluoride is added, so that the abrasion resistance of the product is improved; besides, other effective additives are added, and after being modified, the other effective additives are good in intermiscibility, can quickly float on the surface of a paint film and are fixed on the surface of the paint film through the reaction of hydroxyl and -NCO, so that the possibility that pollutants adhere to the surface of the paint film is low, and the paint film is enabled to have persistent dirt adhesion resistant and self-cleaning properties; the prepared product is free of solvent and environment-friendly, the surface of the paint film is flat and smooth, and the oil-resistant valve antifouling powder coating has the characteristics of being oil resistant, nontoxic, good in flexibility, excellent in mechanical property, and the like.
Description
Technical field
The present invention relates to paint field, be specifically related to excellent antifouling powder coating of valve of a kind of oil resistant mechanical property 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 excellent antifouling powder coating of valve of a kind of oil resistant mechanical property 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 valve that a kind of oil resistant mechanical property is excellent, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 56-67, Hydroxylated acrylic resin 23-30, HDI tripolymer 3-6, polyvinylidene difluoride (PVDF) 5-10, nano titanium oxide 1.3-2.8, sodium wolframate 0.2-0.5, white carbon black 2.3-3.6, polygorskite powder 7-9, paracril particle 1-2, machine oil 6-8, tributyl acetylcitrate 10-15, vinyltrimethoxy silane 3-6, N,N-DIMETHYLACETAMIDE 24-33.
The preparation method of the antifouling powder coating of valve that described a kind of oil resistant mechanical property is excellent, is characterized in that comprising the following steps:
(1) by machine oil, tributyl acetylcitrate stirring and evenly mixing, be warming up to 75-95 DEG C and add polygorskite powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified paligorskite powder;
(2) by nano titanium oxide in 713-824 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add vinyltrimethoxy silane stirring and evenly mixing, be warming up to 70-90 DEG C, add paracril particle dimension 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 paligorskite powder, white carbon black 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 wear resisting property 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, also there is oil resistant, nontoxic, snappiness is good, the excellent feature of mechanical property.
Embodiment
The antifouling powder coating of valve that described a kind of oil resistant mechanical property is excellent, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 64, Hydroxylated acrylic resin 27, HDI tripolymer 5, polyvinylidene difluoride (PVDF) 8, nano titanium oxide 1.9, sodium wolframate 0.4, white carbon black 2.8, polygorskite powder 8, paracril particle 2, machine oil 6, tributyl acetylcitrate 12, vinyltrimethoxy silane 4, N,N-DIMETHYLACETAMIDE 31.
Making method comprises the following steps:
(1) by machine oil, tributyl acetylcitrate stirring and evenly mixing, be warming up to 75-95 DEG C and add polygorskite powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified paligorskite powder;
(2) by nano titanium oxide in 713-824 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add vinyltrimethoxy silane stirring and evenly mixing, be warming up to 70-90 DEG C, add paracril particle dimension 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 paligorskite powder, white carbon black 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, wrinkle;
(2) sticking power is good, shock-resistant, and resistance to marring is good;
(3) static minimal contact angle is recorded according to GB/T2376: 114.1 °.
Claims (2)
1. the antifouling powder coating of valve that an oil resistant mechanical property is excellent, it is characterized in that, be made up of the raw material of following weight part: high hydroxy polyester resin 56-67, Hydroxylated acrylic resin 23-30, HDI tripolymer 3-6, polyvinylidene difluoride (PVDF) 5-10, nano titanium oxide 1.3-2.8, sodium wolframate 0.2-0.5, white carbon black 2.3-3.6, polygorskite powder 7-9, paracril particle 1-2, machine oil 6-8, tributyl acetylcitrate 10-15, vinyltrimethoxy silane 3-6, N,N-DIMETHYLACETAMIDE 24-33.
2. the making method of the antifouling powder coating of valve that a kind of oil resistant mechanical property according to claim 1 is excellent, is characterized in that comprising the following steps:
(1) by machine oil, tributyl acetylcitrate stirring and evenly mixing, be warming up to 75-95 DEG C and add polygorskite powder, fully stir and condensing reflux reaction 2-4h, ultrasonic disperse is even, and spraying dry obtains modified paligorskite powder;
(2) by nano titanium oxide in 713-824 DEG C of high-temperature calcination 30-50 minute, be cooled to room temperature ultrasonic concussion 20-40 minute, add vinyltrimethoxy silane stirring and evenly mixing, be warming up to 70-90 DEG C, add paracril particle dimension 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 paligorskite powder, white carbon black 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 |
|---|---|---|---|
| CN201510457695.0A CN105038528A (en) | 2015-07-30 | 2015-07-30 | Oil-resistant valve antifouling powder coating with excellent mechanical property and preparation method of coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510457695.0A CN105038528A (en) | 2015-07-30 | 2015-07-30 | Oil-resistant valve antifouling powder coating with excellent mechanical property and preparation method of coating |
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| CN105038528A true CN105038528A (en) | 2015-11-11 |
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| CN201510457695.0A Pending CN105038528A (en) | 2015-07-30 | 2015-07-30 | Oil-resistant valve antifouling powder coating with excellent mechanical property and preparation method of coating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105462455A (en) * | 2015-12-02 | 2016-04-06 | 铜陵市肆得科技有限责任公司 | Special powder coating used for pumps and valves and having good stain resistance |
| CN106566391A (en) * | 2016-11-03 | 2017-04-19 | 安徽强力建筑脚手架租赁有限公司 | Active antibacterial high-elastic polyester-butadiene acrylonitrile rubber composite powder coating and preparation method thereof |
| CN106566390A (en) * | 2016-11-03 | 2017-04-19 | 安徽强力建筑脚手架租赁有限公司 | Composite nanofiber enhanced modified polyester-nitrile rubber composite powder coating and preparation method thereof |
| CN106800844A (en) * | 2017-01-13 | 2017-06-06 | 安徽斯瑞尔阀门有限公司 | A kind of electrostatic spraying powder coating for copper seal gate valve and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756523A (en) * | 2013-12-13 | 2014-04-30 | 张家港市双林制墨涂装有限公司 | Antibacterial mildew-resistant powder coating, and preparation method thereof |
-
2015
- 2015-07-30 CN CN201510457695.0A patent/CN105038528A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756523A (en) * | 2013-12-13 | 2014-04-30 | 张家港市双林制墨涂装有限公司 | Antibacterial mildew-resistant powder coating, and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105462455A (en) * | 2015-12-02 | 2016-04-06 | 铜陵市肆得科技有限责任公司 | Special powder coating used for pumps and valves and having good stain resistance |
| CN106566391A (en) * | 2016-11-03 | 2017-04-19 | 安徽强力建筑脚手架租赁有限公司 | Active antibacterial high-elastic polyester-butadiene acrylonitrile rubber composite powder coating and preparation method thereof |
| CN106566390A (en) * | 2016-11-03 | 2017-04-19 | 安徽强力建筑脚手架租赁有限公司 | Composite nanofiber enhanced modified polyester-nitrile rubber composite powder coating and preparation method thereof |
| CN106800844A (en) * | 2017-01-13 | 2017-06-06 | 安徽斯瑞尔阀门有限公司 | A kind of electrostatic spraying powder coating for copper seal gate valve and preparation method thereof |
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Application publication date: 20151111 |