CN105385349A - Hydrophobic and antifouling organic polysilazane coating, and preparation method and application thereof - Google Patents
Hydrophobic and antifouling organic polysilazane coating, and preparation method and application thereof Download PDFInfo
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- CN105385349A CN105385349A CN201510919473.6A CN201510919473A CN105385349A CN 105385349 A CN105385349 A CN 105385349A CN 201510919473 A CN201510919473 A CN 201510919473A CN 105385349 A CN105385349 A CN 105385349A
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- organopolysilazane
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- antifouling
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- hydrophobic
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/16—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
Abstract
The invention relates to the technical field of novel coatings, and concretely relates to a hydrophobic and antifouling organic polysilazane coating, and a preparation method and an application thereof. The hydrophobic and antifouling organic polysilazane coating is composed of modified organic polysilazane, a solvent, a leveling agent and a thickener. The modified organic polysilazane has excellent hydrophobicity, spots difficultly adhere to the surface of the modified organic polysilazane, or the spots adhered to the surface of the modified organic polysilazane can be easily wiped out, so the modified organic polysilazane has antifouling and automatic-cleaning functions, thereby the coating prepared by using the modified organic polysilazane has excellent hydrophobicity, and can be used as an antifouling coating and an easily cleanable coating; and the antifouling and anti-doodling organic polysilazane coating has good wear resistance and weatherability, and long service life.
Description
Technical field
The present invention relates to new coating technical field, be specifically related to a kind of hydrophobic antifouling organopolysilazane coating and its preparation method and application.
Background technology
In recent years, polysilazane, as a kind of novel coating, entered into civilian production aspect from military aspect application gradually, played an increasingly important role in paint field.Polysilazane is a class main chain is the polymkeric substance of repeating unit with Si-N key, and since people's reported first such as nineteen twenty-one A.Stock adopt ammonia ammonia solution chlorosilane to prepare polysilazane, investigator continue for a nearly century to the research of polysilazane.Polysilazane is mainly divided into two classes, inorganic polysilazane (PHPS) and organopolysilazane (OPSZ), the atom that wherein inorganic polysilazane refers to above Si, N is H atom, and in organopolysilazane part hydrogen atom replace by organic group.Organopolysilazane has following advantage as coating:
1) adhere to closely with the substrate surface such as metal, glass, mineral, pottery and organic materials;
2) featured physical properties: high rigidity (9H+), UV clear, preservative property, thermotolerance and thermostability etc.;
3) outstanding coating film forming matter, can use in different environment, high temperature resistant, outstanding weathering resistance and chemical resistance.
In view of above-mentioned advantage, the application of organopolysilazane in paint field is more and more extensive, there is very large development potentiality, hydrophobic coating can the objectionable impurities such as isolated water, air, acid rain effectively in actual application, avoid ground to contact with the direct of sunlight, thus reduce or delay corrosion.The surface energy that hydrophobic coating is formed after coating is little, and spot is not easily attached to its surface or is very easily wiped free of after being attached to its surface, reaches antifouling self-cleaning object thus.This kind of coating has a lot of advantages in routine use; it does not change material appearance color and luster by being formed at household material surface; and the coating of waterproof and oilproof dirt; make the surface-brightening of material easy clean; by the dirty rear clean soiling protective changing early stage into; make household cleaning become simple, greatly reduce clean work, stopped household cleaners health hazard and the pollution to environment.Meanwhile, spot cannot penetrate into furniture material inside, effectively prevents material corrosion aging, effectively extends the work-ing life of furniture material.
Carry out chemical modification to polysilazane, make it to possess excellent hydrophobicity, be prepared into hydrophobic coating further, this coating combines the advantage of polysilazane coating and antifouling paint, has very wide application prospect.
Summary of the invention
The present invention's first object provides a kind of hydrophobic antifouling organopolysilazane coating for the deficiencies in the prior art.
Another object of the present invention is to provide a kind of preparation method of hydrophobic antifouling organopolysilazane coating.
The present invention's the 3rd object is to provide a kind of application of hydrophobic antifouling organopolysilazane coating.
In order to realize above object, the invention provides following technical scheme:
A kind of hydrophobic antifouling organopolysilazane coating, it is composed of the following components:
Wherein, described modification organopolysilazane has following structural formula:
Wherein, n=0 ~ 19, x:y=99:1 ~ 80:20.
Wherein, described solvent is any one or the two or more mixture in ethyl acetate, butylacetate, n-butyl ether, toluene, hexanaphthene, methylcyclohexane, dimethylbenzene, tetrahydrofuran (THF), dioxane.
Wherein, described flow agent is TegoGlide410, TegoGlide420, TegoGlide432 or TegoGlide440, is enlightening height Products.
Wherein, described thickening material is CAB381-0.5, CAB381-20, CAB551-0.2 or CAB381-2, is Yi Si Man product.
A preparation method for hydrophobic antifouling organopolysilazane coating, comprises the following steps:
1) preparation of modification organopolysilazane: perfluoroalkyl ethanol is placed in clean round-bottomed flask, add appropriate solvent, 3-propylene halide, auxiliary agent and catalyzer, mix, heat at 40 ~ 80 DEG C, and carry out stirring and reacting 2 ~ 8h with magnetic stirring apparatus, obtain perfluor alkyl ethide allyl ethers after purifying;
2) by step 1) obtained perfluor alkyl ethide allyl ethers mixes according to a certain percentage with polysilazane, and add catalyzer, at 60 ~ 120 DEG C, heated and stirred reaction 7 ~ 48h, by Si―H addition reaction, obtains modification organopolysilazane film forming matter;
3) by step 2) obtained modification organopolysilazane film forming matter, solvent, flow agent, thickening material mix according to a certain percentage, obtained hydrophobic antifouling organopolysilazane coating.
Wherein, described perfluoroalkyl ethanol has following general structure:
CF
3(CF
2) nCH
2cH
2oH, wherein, n=0 ~ 19, preferred n=4,6,8,12;
Described solvent is any one or two or more mixtures in dioxane, acetonitrile, water, and solvent load is 3 ~ 5 times of perfluoroalkyl ethanol quality;
Described 3-propylene halide is the mixture of any one or the two in 3-bromopropylene, chlorallylene, and the consumption mol ratio of 3-propylene halide and perfluoroalkyl ethanol is 10:1 ~ 1:1;
Described auxiliary agent is any one or two or more mixtures in sodium hydroxide, potassium hydroxide, potassium tert.-butoxide, the consumption of auxiliary agent be perfluoroalkyl ethanol and 3-propylene halide quality and 1.5 ~ 3 times.
Wherein, described perfluor alkyl ethide allyl ethers has following general structure:
CF
3(CF
2) nCH
2cH
2oCH
2cH=CH
2, wherein n=0 ~ 19, preferred n=4,6,8,12;
The mixture of any one or the two in described polysilazane HTA1500RC, HTA1500SC, is Britain's peace intelligence Products, the mass ratio 1:99 ~ 20:80 of si-h bond in perfluor alkyl ethide allyl ethers and polysilazane.
Wherein, described step 3) in the consumption of solvent be 3 ~ 5 times of organopolysilazane quality.
Wherein, described step 1) catalyzer be any one in tetrabutyl ammonium fluoride, Tetrabutyl amonium bromide, 4-butyl ammonium hydrogen sulfate, the consumption of catalyzer be perfluoroalkyl ethanol and 3-propylene halide quality and 0 ~ 2%;
Described step 2) catalyzer be one in isopropyl alcohol solution of chloroplatinic acid, Karstedt catalyzer, consumption be polysilazane and perfluor alkyl ethide allyl ethers quality and 0.005 ‰ ~ 0.01 ‰.
An application for hydrophobic antifouling organopolysilazane coating, comprises the following steps:
By the hydrophobic antifouling organopolysilazane coating showering for preparing on tinplate, 20 ~ 30 DEG C, relative humidity is solidify 10 ~ 30min under the condition of 40 ~ 60%, and then in 60 ~ 120 DEG C, relative humidity is solidify 1 ~ 3h under the condition of 60 ~ 80%.
Compared with prior art, the beneficial effect that the present invention has is: hydrophobic antifouling organopolysilazane coating of the present invention, by modification organopolysilazane, solvent, flow agent, thickening material forms, wherein, described modification organopolysilazane has excellent hydrophobic performance, spot is not easily attached to its surface or is very easily wiped free of after being attached to its surface, there is antifouling self-cleaning function thus, the hydrophobic performance of the coating prepared with it is excellent, can be used as antifouling paint, coating easy to clean, antifouling anti-graffiti organopolysilazane coating of the present invention has good wear resistance and weathering resistance simultaneously, long service life.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, but any limitation of the invention do not formed.
Embodiment 1.
(1) 36.4g perfluoro hexyl ethanol is placed in clean round-bottomed flask, add the dioxane of 54.6g, the water of 54.6g, the 3-bromopropylene of 12.1g, the sodium hydroxide of 72.8g and the Tetrabutyl amonium bromide of 0.25g, mix, heat at 60 DEG C, and carry out stirring and reacting 4h with magnetic stirring apparatus, obtain perfluoro hexyl ethyl allyl ether after purifying;
(2) 1g perfluoro hexyl ethyl allyl ether, 95g polysilazane are mixed, and add the Karstedt catalyzer of 0.005 ‰, heated and stirred reaction 24h at 80 DEG C;
(3) after above-mentioned reaction terminates, add 200g toluene, 0.5g TegoGlide410,1g CAB381-0.5, mix, obtain hydrophobic antifouling modification organopolysilazane coating.
The application of the hydrophobic antifouling organopolysilazane coating of the present embodiment:
By hydrophobic antifouling organopolysilazane coating showering obtained for the present embodiment on tinplate, at 25 DEG C, relative humidity is solidify 20min under the condition of 60%, and then in 120 DEG C, relative humidity is solidify 1h under 80% condition.
Embodiment 2.
(1) 26.4g perfluoro butyl ethanol is placed in clean round-bottomed flask, add the acetonitrile of 100.0g, the chlorallylene of 15.3g, the potassium hydroxide of 112g, mix, heat at 40 DEG C, and carry out stirring and reacting 4h with magnetic stirring apparatus, obtain perfluoro butyl ethyl allyl ether after purifying;
(2) 3g perfluoro butyl ethyl allyl ether, 97g polysilazane are mixed, and add the isopropyl alcohol solution of chloroplatinic acid of 0.007 ‰, heated and stirred reaction 48h at 60 DEG C;
(3), after above-mentioned reaction terminates, add the CAB381-0.5 of TegoGlide420,2g of 100g butylacetate, 0.1g, mix, obtain hydrophobic antifouling modification organopolysilazane coating.
The application of the hydrophobic antifouling organopolysilazane coating of the present embodiment:
By hydrophobic antifouling organopolysilazane coating showering obtained for the present embodiment on tinplate, at 30 DEG C, relative humidity is solidify 10min under the condition of 60%, and then in 120 DEG C, relative humidity is solidify 1h under 80% condition.
Embodiment 3.
(1) 46.4g perfluoro octyl ethanol is placed in clean round-bottomed flask, add 70.0g water, 150g dioxane, the 3-bromopropylene of 96.8g, 60g potassium tert.-butoxide and 0.9g tetrabutyl ammonium fluoride, mix, heat at 70 DEG C, and carry out stirring and reacting 8h with magnetic stirring apparatus, obtain perfluorooctylethyl group allyl ethers after purifying;
(2) 10g perfluorooctylethyl group allyl ethers, 90g polysilazane are mixed, and add 0.01 ‰ Karstedt catalyzer, heated and stirred reaction 20h at 120 DEG C;
(3), after above-mentioned reaction terminates, add the CAB381-20 of TegoGlide440,5g of 50g dioxane, 0.3g, mix, obtain hydrophobic antifouling modification organopolysilazane coating.
The application of the hydrophobic antifouling organopolysilazane coating of the present embodiment:
By hydrophobic antifouling organopolysilazane coating showering obtained for the present embodiment on tinplate, at 25 DEG C, relative humidity is solidify 20min under the condition of 50%, then in 80 DEG C, solidifies 2.5h under relative humidity 60% condition.
Embodiment 4.
(1) 66.4g perfluorododecyl ethanol is placed in clean round-bottomed flask, add the water of 70.0g acetonitrile, 200g, the chlorallylene of 121g, 281.1g sodium hydroxide and 3.7g tetrabutyl ammonium fluoride, mix, heat at 80 DEG C, and carry out stirring and reacting 8h with magnetic stirring apparatus, obtain perfluorododecyl ethyl allyl ether after purifying;
(2) 1g perfluorododecyl ethyl allyl ether, 99g polysilazane are mixed, and add the Karstedt catalyzer of 0.01 ‰, heated and stirred reaction 30h at 120 DEG C;
(3) after above-mentioned reaction terminates, add 100g dimethylbenzene, the CAB551-0.2 of TegoGlide432,1.5g of 1g, mixes, and obtains hydrophobic antifouling modification organopolysilazane coating.
The application of the hydrophobic antifouling organopolysilazane coating of the present embodiment:
By hydrophobic antifouling organopolysilazane coating showering obtained for the present embodiment on tinplate, at 30 DEG C, relative humidity is solidify 30min under the condition of 60%, then in 120 DEG C, solidifies 1.5h under relative humidity 60% condition.
Embodiment 5.
(1) 26.4g perfluoro butyl ethanol is placed in clean round-bottomed flask, add 100g acetonitrile, 15.3g3-propenyl chloride, 63.0g sodium hydroxide and 0.45g 4-butyl ammonium hydrogen sulfate, mix, heat at 80 DEG C, and carry out stirring and reacting 2h with magnetic stirring apparatus, obtain perfluoro butyl ethyl allyl ether after purifying;
(2) 5g perfluoro butyl ethyl allyl ether, 95g polysilazane are mixed, and add the isopropyl alcohol solution of chloroplatinic acid of 0.01 ‰, heated and stirred reaction 7h at 100 DEG C;
(3), after above-mentioned reaction terminates, add the CAB381-20 of TegoGlide440,3g of 180g butylacetate, 0.7g, obtain hydrophobic antifouling modification organopolysilazane coating.
The application of the hydrophobic antifouling organopolysilazane coating of the present embodiment:
By hydrophobic antifouling organopolysilazane coating showering obtained for the present embodiment on tinplate, at 20 DEG C, relative humidity is solidify 30min under the condition of 60%, and then in 90 DEG C, relative humidity is solidify 1.5h under 70% condition.
Embodiment 6.
(1) 46.4g perfluoro octyl ethanol is placed in clean round-bottomed flask, add 130.0g acetonitrile, 70g water, the chlorallylene of 38.3g, 127.5g sodium hydroxide and 0.9g Tetrabutyl amonium bromide, mix, heat at 75 DEG C, and carry out stirring and reacting 1.5h with magnetic stirring apparatus, obtain perfluorooctylethyl group allyl ethers after purifying;
(2) 15g perfluorooctylethyl group allyl ethers, 85g polysilazane are mixed, and add the Karstedt catalyzer of 0.005 ‰, heated and stirred reaction 10h at 100 DEG C;
(3), after above-mentioned reaction terminates, add the CAB381-2 of TegoGlide420,2.2g of 100g butylacetate, 0.8g, obtain hydrophobic antifouling modification organopolysilazane coating.
The application of the hydrophobic antifouling organopolysilazane coating of the present embodiment:
By hydrophobic antifouling organopolysilazane coating showering obtained for the present embodiment on tinplate, at 25 DEG C, relative humidity is solidify 20min under the condition of 50%, then in 100 DEG C, solidifies 2h under relative humidity 70% condition.
Embodiment 7.
(1) 36.4g perfluoro hexyl ethanol is placed in clean round-bottomed flask, add 70.0g water, 70g dioxane, the chlorallylene of 23.0g, 178.2g sodium hydroxide and 0.5g Tetrabutyl amonium bromide, mix, heat at 70 DEG C, and carry out stirring and reacting 2.5h with magnetic stirring apparatus, obtain perfluoro hexyl ethyl allyl ether after purifying;
(2) by 13g perfluoro hexyl ethyl allyl ether, 87g polysilazane mixes, and adds the Karstedt catalyzer of 0.008 ‰, heated and stirred reaction 24h at 80 DEG C;
(3), after above-mentioned reaction terminates, add the CAB381-2 of TegoGlide432,2.0g of 150g dioxane, 0.5g, obtain hydrophobic antifouling modification organopolysilazane coating.
The application of the hydrophobic antifouling organopolysilazane coating of the present embodiment:
By hydrophobic antifouling organopolysilazane coating showering obtained for the present embodiment on tinplate, at 30 DEG C, relative humidity is solidify 30min under the condition of 40%, then in 120 DEG C, solidifies 2.5h under the condition of relative humidity 70%.
Embodiment 8.
(1) 36.4g perfluoro hexyl ethanol is placed in clean round-bottomed flask, add 70.0g water, 100g dioxane, 36.3g3-bromopropylene, 110.0g sodium hydroxide and 0.7g tetrabutyl ammonium fluoride, mix, heat at 70 DEG C, and carry out stirring and reacting 4h with magnetic stirring apparatus, obtain perfluoro hexyl ethyl allyl ether after purifying;
(2) by 20g perfluoro hexyl ethyl allyl ether, 80g polysilazane mixes, and adds the Karstedt catalyzer of 0.008 ‰, heated and stirred reaction 24h at 80 DEG C;
(3), after above-mentioned reaction terminates, add the CAB551-0.2 of TegoGlide432,2.0g of 150g dioxane, 0.5g, obtain hydrophobic antifouling modification organopolysilazane coating.
The application of the hydrophobic antifouling organopolysilazane coating of the present embodiment:
By hydrophobic antifouling organopolysilazane coating showering obtained for the present embodiment on tinplate, at 28 DEG C, relative humidity is solidify 25min under the condition of 45%, and then in 80 DEG C, relative humidity is solidify 3h under the condition of 80%.
The performance perameters such as the sticking power of hydrophobic antifouling organopolysilazane coating prepared embodiment 1 ~ 8 respectively, hardness, water-based feeler, hydrophobic effect and oil pen's wiping detect, and detected result is as shown in table 1.
Each performance perameter of the hydrophobic antifouling organopolysilazane coating of embodiment 1 ~ 8 measures in accordance with the following methods:
Sticking power: measure according to GB/T9286-1998 standard.
Hardness: measure according to GB-T6739-1996 standard.
Water contact angle: in employing contact angle measurement JC2000D2 measures marine morning
Hydrophobic effect: water is poured on and scribbles on the tinplate of coating, then that tinplate is vertical, observe and whether have the globule to hang onboard.
Oil pen's wiping: with oil pen on the cated tinplate of painting, whether then oiliness pen and ink are wiped by paper using, observe and have pen and ink to remain in coating.
The hydrophobic antifouling organopolysilazane coating property index of table 1
As seen from table, the excellent performance such as sticking power, hardness, water-based feeler of hydrophobic antifouling organopolysilazane coating of the present invention, there is good hydrophobic effect and self-cleaning performance simultaneously, can be used as antifouling paint, coating easy to clean, hydrophobic antifouling organopolysilazane coating of the present invention has good wear resistance and weathering resistance, long service life simultaneously.
The above embodiments are only the preferred embodiments of the present invention, can not limit interest field of the present invention with this, and therefore, the equivalent variations done according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (10)
1. a hydrophobic antifouling organopolysilazane coating, is characterized in that: it is composed of the following components:
Wherein, described modification organopolysilazane has following structural formula:
Wherein, n=0 ~ 19, x:y=99:1 ~ 80:20.
2. hydrophobic antifouling organopolysilazane coating according to claim 1, is characterized in that: described solvent is any one or two or more mixtures in ethyl acetate, butylacetate, n-butyl ether, toluene, hexanaphthene, methylcyclohexane, dimethylbenzene, tetrahydrofuran (THF), dioxane.
3. hydrophobic antifouling organopolysilazane coating according to claim 1, is characterized in that: described flow agent is TegoGlide410, TegoGlide420, TegoGlide432 or TegoGlide440.
4. hydrophobic antifouling organopolysilazane coating according to claim 1, is characterized in that: described thickening material is CAB381-0.5, CAB381-20, CAB551-0.2 or CAB381-2.
5. a preparation method for hydrophobic antifouling organopolysilazane coating, is characterized in that, comprise the following steps:
1) preparation of modification organopolysilazane: perfluoroalkyl ethanol is placed in clean round-bottomed flask, add appropriate solvent, 3-propylene halide, auxiliary agent and catalyzer, mix, heat at 40 ~ 80 DEG C, and carry out stirring and reacting 2 ~ 8h with magnetic stirring apparatus, obtain perfluor alkyl ethide allyl ethers after purifying;
2) by step 1) obtained perfluor alkyl ethide allyl ethers mixes according to a certain percentage with polysilazane, and add catalyzer, at 60 ~ 120 DEG C, heated and stirred reaction 7 ~ 48h, by Si―H addition reaction, obtains modification organopolysilazane film forming matter;
3) by step 2) obtained modification organopolysilazane film forming matter, solvent, flow agent, thickening material mix according to a certain percentage, obtained hydrophobic antifouling organopolysilazane coating.
6. the preparation method of hydrophobic antifouling organopolysilazane coating according to claim 5, it is characterized in that, described perfluoroalkyl ethanol has following general structure:
CF
3(CF
2) nCH
2cH
2oH, wherein, n=0 ~ 19, preferred n=4,6,8,12;
Described solvent is any one or two or more mixtures in dioxane, acetonitrile, water, and solvent load is 3 ~ 5 times of perfluoroalkyl ethanol quality;
Described 3-propylene halide is the mixture of any one or the two in 3-bromopropylene, chlorallylene, and the consumption mol ratio of 3-propylene halide and perfluoroalkyl ethanol is 10:1 ~ 1:1;
Described auxiliary agent is any one or two or more mixtures in sodium hydroxide, potassium hydroxide, potassium tert.-butoxide, the consumption of auxiliary agent be perfluoroalkyl ethanol and 3-propylene halide quality and 1.5 ~ 3 times.
7. the preparation method of hydrophobic antifouling organopolysilazane coating according to claim 5, it is characterized in that, described perfluor alkyl ethide allyl ethers has following general structure:
CF
3(CF
2) nCH
2cH
2oCH
2cH=CH
2, wherein n=0 ~ 19, preferred n=4,6,8,12;
The mixture of any one or the two in described polysilazane HTA1500RC, HTA1500SC, the mass ratio 1:99 ~ 20:80 of si-h bond in perfluor alkyl ethide allyl ethers and polysilazane.
8. the preparation method of hydrophobic antifouling organopolysilazane coating according to claim 5, is characterized in that, described step 3) in the consumption of solvent be 3 ~ 5 times of organopolysilazane quality.
9. the preparation method of hydrophobic antifouling organopolysilazane coating according to claim 5, it is characterized in that, described step 1) catalyzer be any one in tetrabutyl ammonium fluoride, Tetrabutyl amonium bromide, 4-butyl ammonium hydrogen sulfate, the consumption of catalyzer be perfluoroalkyl ethanol and 3-propylene halide quality and 0 ~ 2%;
Described step 2) catalyzer be one in isopropyl alcohol solution of chloroplatinic acid, Karstedt catalyzer, consumption be polysilazane and perfluor alkyl ethide allyl ethers quality and 0.005 ‰ ~ 0.01 ‰.
10. an application for hydrophobic antifouling organopolysilazane coating, is characterized in that, comprise the following steps:
By the hydrophobic antifouling organopolysilazane coating showering for preparing on tinplate, 20 ~ 30 DEG C, relative humidity is solidify 10 ~ 30min under the condition of 40 ~ 60%, and then in 60 ~ 120 DEG C, relative humidity is solidify 1 ~ 3h under the condition of 60 ~ 80%.
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| CN114805820A (en) * | 2022-04-12 | 2022-07-29 | 中国船舶重工集团公司第七一八研究所 | Hydrophobic organic polysilazane and preparation method and application thereof |
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| CN116622288B (en) * | 2023-05-19 | 2024-04-05 | 广州希森美克新材料科技股份有限公司 | Nano coating with high wear resistance, high weather resistance, super-hydrophobic and super-oleophobic properties, preparation method and construction method thereof |
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