CN105949831A - Ceramic coating with high hardness in hot environment - Google Patents
Ceramic coating with high hardness in hot environment Download PDFInfo
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- CN105949831A CN105949831A CN201610503836.2A CN201610503836A CN105949831A CN 105949831 A CN105949831 A CN 105949831A CN 201610503836 A CN201610503836 A CN 201610503836A CN 105949831 A CN105949831 A CN 105949831A
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- ceramic coating
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- high rigidity
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
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- Paints Or Removers (AREA)
Abstract
The invention provides a ceramic coating with high hardness in a hot environment. The ceramic coating consists of silica sol, organosilane, a catalyst, titanium dioxide, hydroxyl silicone oil, a filler and a toner, wherein the weight ratio of the silica sol, the organosilane, the catalyst, the titanium dioxide, the hydroxyl silicone oil, the filler and the toner is 100:(55.5-60.5):(21-25):(1-5):(2-30):(0-30), the content of Si2O in the silica sol is 25 to 30 percent, silica sol emulsion particles are 500 to 600 nm, the particle size of the titanium dioxide is 40 to 50 nm, and the hydroxyl content of the hydroxyl silicone oil is 4.2 to 4.5 percent. The prepared ceramic coating can be directly used without curing, and has high cold and heat stability, wear resistance and non-adhesion.
Description
Technical field
The invention belongs to paint field, be specifically related to the ceramic coating of high rigidity under a kind of thermal environment.
Background technology
Ceramic coating is the environment-protecting asepsis coating of a kind of novel low VOC emission, cannot not have viscously, high temperature resistant, high rigidity, does not fire the plurality of advantages such as smokeless, extra-weather-proof, automatically cleaning, corrosion-resistant, resistance to high temperature oxidation, is a kind of preferably coating.The ceramic coating industrialization in fields such as chemical anticorrosion, aviation, automobile, cooking apparatus in recent years and commercialization use trend more and more obvious, and its research work has become the focus received much concern.In recent years, ceramic coating starts to apply on cooker, because of the advantage of its safety, quickly grows.In terms of non-sticking cooking utensils, current kitchen utensils often use politef (PTFE) as the main component of coating agent.Although PTFE has good long-term non-stick, but the epithelium of PTFE is too soft, and the scratch resistance when high temperature is not enough with red hardness.Relative to traditional PTFE, ceramic coating has under more environmental protection, hardness height, anti-wear performance excellence, high temperature advantages such as being not easily decomposed.But, the hardness of ceramic coating own is high, and toughness is poor, and in use, easily collide, impact, scraping etc. causes adhesive force variation, ftracture or come off.
Current coating is for making performance more excellent, it is required to before use carry out maturing process, curing time was at 1-15 hour, curing temperature is 60-70 DEG C, this maturing process wastes the energy very much, make coating cost increase, increase the weight of business burden, and the coating after ripening is difficult to storage, meet the high temperature of more than 40 DEG C to be susceptible to reaction and form fritter, affect very much the performance of coating, in order to solve this problem, coating after general ripening needs to preserve at thermostatic chamber, but in transportation, because compartment narrow space, temperature easily reaches 50 DEG C, coating is caused to lump, serviceability is caused to decline.
CN103013193A discloses a kind of containing ceramic coating by the emperor himself, is made up of following component, component ratio by mass number meter: 100 parts of Ludox, 50-100 part organosilan, 3-1 part catalyst, 5-20 part are admired powder, 1-5 part silicone oil；Described silicone oil is hydroxy silicon oil, is 100-20000cps the viscosity of 25 DEG C；The described particle diameter admiring powder is 200-400 mesh；The solid content of described Ludox is 20-50%, and the solid particle size in Ludox is 8-50nm；Described containing admire wash in a pan porcelain coating preparation method: first using Ludox and by the emperor himself powder fully dispersed till precipitate is wholly absent as A liquid；Then using organosilan, silicone oil and catalyst mix homogeneously as B liquid；Then B liquid is added in the A liquid that oneself is scattered, ripening 1.5-12 hour, finally filter with 100-150 mesh filter screen.Ceramic coating prepared by the program has preferable non-stick and wearability, but its preparation method needs also exist for the maturing process of 1.5-12 hour.
Summary of the invention
For solving the problems referred to above, the present invention provides the ceramic coating of high rigidity under a kind of thermal environment, being made up of Ludox, organosilan, catalyst, titanium dioxide, hydroxy silicon oil, inserts and toner, the weight ratio of described Ludox, organosilan, catalyst, titanium dioxide, hydroxy silicon oil, inserts and toner is 100:55.5-60.5:21-25:1-5:2-30:0-30.
Si in described Ludox2O content 25%-30%, Ludox emulsion particle is 500-600nm, and the solid content of Ludox is 60-65%
The particle diameter of described titanium dioxide is 40-50nm,
Preferably, the hydroxy radical content of described hydroxy silicon oil is 4.2-4.5%, and described hydroxy silicon oil is 100-20000cps the viscosity of 25 DEG C.
Preferably, be chosen as can be with the silicone oil of Food Contact for silicone oil.
Preferably, one or both during described organosilan is MTMS and MTES.
Preferably, one or both during described catalyst is acetic acid and citric acid.
Preferably, one or more during described inserts is silicon dioxide, aluminium oxide, zirconium dioxide, carborundum, aluminium nitride, boron nitride, Kaolin, Pulvis Talci, mica powder and barium sulfate.
Preferably, described inserts particle diameter is 10-20um.
Preferably, toner of the present invention can be inorganic toner, such as titanium dioxide and/or ferrum oxide etc., but is not limited to above-mentioned restriction, can select according to the demand to color.
The present invention also provides for the preparation method of a kind of titaniferous ceramic coating: be wholly absent as color slurry using fully dispersed to Ludox, titanium dioxide, inserts and toner extremely precipitation in proportion, in proportion using organosilan, catalyst and hydroxy silicon oil mix homogeneously as paste resin, then paste resin and color slurry are sufficiently mixed uniformly, finally filter with 100-150 mesh filter screen, prepare the ceramic coating of high rigidity under thermal environment.
Titaniferous ceramic coating of the present invention need not maturing process when preparing, and just can be used directly, and film-forming temperature is 250-280 DEG C.
The present invention also provides for a kind of protective layer prepared by the ceramic coating of high rigidity under above-mentioned thermal environment.
The preparation method of described protective layer is:
First the ceramic coating of high rigidity substrate surface after sandblasting, roughening and oil removal treatment under coated heat environment, then with 250 DEG C baking 2 minutes after, then with 280 DEG C baking 10-15 minute after, cool down the most at room temperature.The sprayable base material at resistance to more than 400 DEG C of above-mentioned ceramic coating, such as non-metallic substrate such as glass or pottery, or metal base such as aluminum, aluminium alloy, anodised aluminium, cast aluminium, cast iron, rustless steel or carbon steel.The method of above-mentioned coating can be spraying, dip-coating or roller coating.The protective coating of above-mentioned non-stick can be applicable to kitchen utensils such as frying pan, pan, deep fryer, electric cooker, sandwich baking tray, cake disk or grill etc., is equally applicable for industrial appliance such as heat exchanger, Camphor tree tool, conveyer belt, valve, snow cave shovel or roller surface etc..
Beneficial effects of the present invention:
(1) formula and the ratio of the technical program are reasonable, and the ceramic coating of preparation need not ripening and just can be used directly, and after solving ripening, coating produces the problem of caking in storage and transportation, and saves the energy, reduces cost.
(2) advantage that ceramic coating prepared by the technical program reasonable mixture ratio possesses good cold and hot hardness, wearability and non-stick.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is described in more detail, but the protection domain of application claims is not limited to embodiment.
The assay method of the present invention is according to following standard:
1. coating hardness test: test according to method described in standard ASTM D3363.
2. non-stick test: when sample pot is heated to 160-180 DEG C, puts into pot by after whole egg broken shell, keep 160-180 DEG C of temperature 2-3 minute, after egg patch pot one side jaundice, with shovel upset egg, see and whether can completely translate into another side, after outwelling egg, sample pot is used cloth to wipe with totally；Repeat the above steps, until egg can not completely overturn, record experiment fried egg sum.
3. anti-wear performance test:
Product is placed on the resistance to grinding machine that Du Pont is special, applies the pressure of 4.9kg, add a small amount of liquid detergent and water, use 3M-7447# scouring pad, change a scouring pad every 250 times.Show money or valuables one carries unintentionally with 10 matrixes and terminate test, calculate total degree.
4. compressive strength test
During mensuration, sample compression face is placed in pressing plate center, with the uniform loading of the rate of loading of 1.4-1.8KN/S, till sample is broken.The maximum load that record testing machine now indicates.
5. rupture strength test
Sample is placed on Intensity of Breaking Tester and is measured.The strength at normal temperature of sample is carried out according to GB/T3001-2000.
Embodiment 1:
The fully dispersed extremely precipitation of 100g Ludox, 25g titanium dioxide, 3g Pulvis Talci and 3g mica powder is wholly absent as color slurry；Using 55.5g organosilan, 0.5g citric acid and 1g hydroxy silicon oil mix homogeneously as paste resin, then paste resin and color slurry are sufficiently mixed uniformly, finally filter with 100-150 mesh filter screen, prepare the ceramic coating of high rigidity under thermal environment.
Embodiment 2:
The fully dispersed extremely precipitation of 100g Ludox, 24g titanium dioxide, 20g boron nitride, 5g Kaolin and 5g titanium dioxide is wholly absent as color slurry；Using 57g organosilan, 0.7g citric acid and 2g hydroxy silicon oil mix homogeneously as paste resin, then paste resin and color slurry are sufficiently mixed uniformly, finally filter with 100-150 mesh filter screen, prepare the ceramic coating of high rigidity under thermal environment.
Embodiment 3:
The fully dispersed extremely precipitation of 100g Ludox, 22g titanium dioxide, 10g boron nitride, 5g Kaolin and 5g titanium dioxide is wholly absent as color slurry；Using 59g organosilan, 0.9g citric acid and 4g hydroxy silicon oil mix homogeneously as paste resin, then paste resin and color slurry are sufficiently mixed uniformly, finally filter with 100-150 mesh filter screen, prepare the ceramic coating of high rigidity under thermal environment.
Embodiment 4:
The fully dispersed extremely precipitation of 100g Ludox, 21g titanium dioxide, 10g boron nitride and 5g titanium dioxide is wholly absent as color slurry；Using 60.5g organosilan, 1g citric acid and 5g hydroxy silicon oil mix homogeneously as paste resin, then paste resin and color slurry are sufficiently mixed uniformly, finally filter with 100-150 mesh filter screen, prepare the ceramic coating of high rigidity under thermal environment.
Comparative example
Compared with Example 1, according to the usage ratio that data point reuse comparative example 1-4 of table 1 is concrete, remaining technique is same as in Example 1.
Table 1
Comparative example 5: first 100g Ludox, 10g titanium dioxide and 40g copper manganese iron axinite are mixed grinding till precipitate is wholly absent as A liquid；Then using 70g MTES, 5g phenyltrimethoxysila,e, 1g the acetic acid mix homogeneously of silicone oil FD20 and 1g as B liquid；Then B liquid is added in the A liquid that oneself is scattered, ripening 12 hours, finally filter with 100-150 mesh filter screen, prepare ceramic coating.
Effect example
Preparation coating: preparation-obtained to embodiment 1-4 and comparative example 1-4 naughty porcelain coating is sprayed to the substrate surface after sandblasting, roughening and oil removal treatment; then after with 250 DEG C of bakings 2 minutes; after again with 280 DEG C of bakings 10-15 minute; finally cool down at room temperature, i.e. form protective coating at substrate surface.
Table 1 is the performance parameter table of the protective coating using the naughty porcelain coating of embodiment 1-4 and comparative example 1-4 to prepare.
Table 2
Storage test:
First group: after storing 30 days under the ceramic coating ordinary temp (30-40 DEG C) that embodiment 1-4 and comparative example 5 are prepared, coating appearance is observed；
Second group: coating appearance, after 50 DEG C of storages 5 days, is observed by ceramic coating embodiment 1-4 and comparative example 5 prepared, simulation transportation may cause temperature higher because of enclosed environment.
The concrete data of two groups of tests are shown in Table 3.
Table 3
The coating that as can be seen from Table 2 prepared by the ceramic coating of embodiment 1-4 possesses preferable cold and hot stability, wearability, non-stick and the curved intensity of pressure-proof and snap-resistent；Comparative example 1-4 have adjusted the consumption of titanium dioxide and organosilan, after making it not in the ratio of the technical program, each performance of coating is the most relatively poor, therefore, illustrate that the formula proportion of the technical program is reasonable, use under conditions of need not ripening, remain to possess preferable performance, if and the ratio in the technical program is not without maturing process, it is impossible to reach identical performance requirement.
The bin stability of embodiment 1 and embodiment 2 is preferable as can be seen from Table 3；The ceramic coating after overcuring that comparative example 5 is prepared for prior art, stores 30 days at 30-40 DEG C, it was observed that have slight caking phenomenon in coating, and storage just has more caking phenomenon in 5 days at 50 DEG C.
Therefore, illustrating that under the thermal environment of the present invention, the ceramic coating of high rigidity is not required to maturing process bin stability preferably, normal storage transport will not have an impact, and still possesses preferable cold and hot stability, wearability, non-stick.
The announcement of book and teaching according to the above description, above-mentioned embodiment can also be changed and revise by those skilled in the art in the invention.Therefore, the invention is not limited in detailed description of the invention disclosed and described above, some modifications and changes of invention be should also be as falling in the scope of the claims of the present invention.Although additionally, employ some specific terms in this specification, but these terms are merely for convenience of description, the present invention is not constituted any restriction.
Claims (8)
1. the ceramic coating of high rigidity under a thermal environment, it is characterised in that by Ludox, organosilan, catalyst, titanium
White lead, hydroxy silicon oil, inserts and toner composition, described Ludox, organosilan, catalyst, titanium dioxide, hydroxyl silicon
The weight ratio of oil, inserts and toner is 100:55.5-60.5:21-25:1-5:2-30:0-30；Si in described Ludox2O
Content 25%-30%, Ludox emulsion particle is 500-600nm, and the particle diameter of described titanium dioxide is 40-50nm, described hydroxyl
The hydroxy radical content of silicone oil is 4.2-4.5%；
The preparation method of described titaniferous ceramic coating is: in proportion by fully dispersed to Ludox, titanium dioxide, inserts and toner
It is wholly absent as color slurry to precipitation, in proportion using organosilan, catalyst and hydroxy silicon oil mix homogeneously as paste resin,
Then paste resin and color slurry are sufficiently mixed uniformly, finally filter with 100-150 mesh filter screen, prepare under thermal environment high hard
The ceramic coating of degree.
The ceramic coating of high rigidity under a kind of thermal environment the most according to claim 1, it is characterised in that described hydroxyl silicon
Oil is 100-20000cps the viscosity of 25 DEG C.
The ceramic coating of high rigidity under a kind of thermal environment the most according to claim 1, it is characterised in that described organosilicon
Alkane is one or both in MTMS and MTES.
The ceramic coating of high rigidity under a kind of thermal environment the most according to claim 1, it is characterised in that described catalyst
For one or both in acetic acid and citric acid.
The ceramic coating of high rigidity under a kind of thermal environment the most according to claim 1, it is characterised in that described inserts
For silicon dioxide, aluminium oxide, zirconium dioxide, carborundum, aluminium nitride, boron nitride, Kaolin, Pulvis Talci, mica powder,
One or more in aluminum or the silicate of mistake, barium sulfate, metallic fiber and stainless steel powder.
The ceramic coating of high rigidity under a kind of thermal environment the most according to claim 1, it is characterised in that described Ludox
Solid content be 60-65%.
7. the protective layer prepared by the ceramic coating of high rigidity under thermal environment described in any one of claim 1-6.
8. protective layer application on kitchen utensils described in a claim 7.
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| CN201610503836.2A CN105949831A (en) | 2016-06-28 | 2016-06-28 | Ceramic coating with high hardness in hot environment |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675222A (en) * | 2016-12-30 | 2017-05-17 | 河源市美晨联合智能硬件电子研究院 | Oil paint composition and painted piece |
| CN107880604A (en) * | 2017-12-01 | 2018-04-06 | 浙江大学自贡创新中心 | For coating the Nano-meter SiO_2 of valve2The preparation method of modified inorganic coating |
| CN107903671A (en) * | 2017-11-30 | 2018-04-13 | 浙江大学自贡创新中心 | For coating the Nano-meter SiO_2 of valve2Modified inorganic coating |
| CN108047774A (en) * | 2017-12-01 | 2018-05-18 | 浙江大学自贡创新中心 | For coating the Nano-meter SiO_2 of valve2Modified inorganic coating |
| CN108084745A (en) * | 2017-11-30 | 2018-05-29 | 浙江大学自贡创新中心 | For coating the Nano-meter SiO_2 of valve2The preparation method of modified inorganic coating |
| CN108314909A (en) * | 2018-03-28 | 2018-07-24 | 清远市伟畅达化工有限公司 | Method for preparing nano ceramic coating with ultra-long water boiling life |
| CN108384380A (en) * | 2018-03-28 | 2018-08-10 | 清远市伟畅达化工有限公司 | Method for manufacturing ultrahigh wear-resistant nano ceramic coating |
| CN108912751A (en) * | 2018-05-31 | 2018-11-30 | 江西亚龙美氟科技有限公司 | A kind of ceramic paint and its preparation method and application of high fire-retardance high rigidity |
| CN109836995A (en) * | 2017-09-22 | 2019-06-04 | 上海涂尊新材料科技有限公司 | Interior architecture wall ceramic coating |
| CN111500186A (en) * | 2020-04-24 | 2020-08-07 | 容七英 | High-hardness environment-friendly water-based ceramic coating and preparation method thereof |
| CN114773885A (en) * | 2022-03-29 | 2022-07-22 | 武汉苏泊尔炊具有限公司 | Modified sealing agent, anti-corrosion coating and method for preparing anti-corrosion coating |
| WO2024046129A1 (en) * | 2022-08-30 | 2024-03-07 | 上海宜瓷龙新材料股份有限公司 | Self-cleaning ceramic coating of lotus-leaf-like structure, preparation method therefor and application method thereof |
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| CN103013193A (en) * | 2012-12-13 | 2013-04-03 | 慧智科技（中国）有限公司 | Titanium-containing ceramic paint and protective coating |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675222A (en) * | 2016-12-30 | 2017-05-17 | 河源市美晨联合智能硬件电子研究院 | Oil paint composition and painted piece |
| CN109836995A (en) * | 2017-09-22 | 2019-06-04 | 上海涂尊新材料科技有限公司 | Interior architecture wall ceramic coating |
| CN107903671A (en) * | 2017-11-30 | 2018-04-13 | 浙江大学自贡创新中心 | For coating the Nano-meter SiO_2 of valve2Modified inorganic coating |
| CN108084745A (en) * | 2017-11-30 | 2018-05-29 | 浙江大学自贡创新中心 | For coating the Nano-meter SiO_2 of valve2The preparation method of modified inorganic coating |
| CN107880604A (en) * | 2017-12-01 | 2018-04-06 | 浙江大学自贡创新中心 | For coating the Nano-meter SiO_2 of valve2The preparation method of modified inorganic coating |
| CN108047774A (en) * | 2017-12-01 | 2018-05-18 | 浙江大学自贡创新中心 | For coating the Nano-meter SiO_2 of valve2Modified inorganic coating |
| CN108314909A (en) * | 2018-03-28 | 2018-07-24 | 清远市伟畅达化工有限公司 | Method for preparing nano ceramic coating with ultra-long water boiling life |
| CN108384380A (en) * | 2018-03-28 | 2018-08-10 | 清远市伟畅达化工有限公司 | Method for manufacturing ultrahigh wear-resistant nano ceramic coating |
| CN108912751A (en) * | 2018-05-31 | 2018-11-30 | 江西亚龙美氟科技有限公司 | A kind of ceramic paint and its preparation method and application of high fire-retardance high rigidity |
| CN111500186A (en) * | 2020-04-24 | 2020-08-07 | 容七英 | High-hardness environment-friendly water-based ceramic coating and preparation method thereof |
| CN114773885A (en) * | 2022-03-29 | 2022-07-22 | 武汉苏泊尔炊具有限公司 | Modified sealing agent, anti-corrosion coating and method for preparing anti-corrosion coating |
| WO2024046129A1 (en) * | 2022-08-30 | 2024-03-07 | 上海宜瓷龙新材料股份有限公司 | Self-cleaning ceramic coating of lotus-leaf-like structure, preparation method therefor and application method thereof |
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Application publication date: 20160921 |