CN103205201A - Non-stick ceramic paint and coating method thereof - Google Patents
Non-stick ceramic paint and coating method thereof Download PDFInfo
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- CN103205201A CN103205201A CN201310025581XA CN201310025581A CN103205201A CN 103205201 A CN103205201 A CN 103205201A CN 201310025581X A CN201310025581X A CN 201310025581XA CN 201310025581 A CN201310025581 A CN 201310025581A CN 103205201 A CN103205201 A CN 103205201A
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- ceramic coating
- silicon
- stick ceramic
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- 238000000576 coating method Methods 0.000 title claims abstract description 45
- 239000003973 paint Substances 0.000 title claims abstract description 11
- 239000000919 ceramic Substances 0.000 title abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 30
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000049 pigment Substances 0.000 claims abstract description 16
- 229910000077 silane Inorganic materials 0.000 claims abstract description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 15
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 claims abstract description 14
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000003960 organic solvent Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical group COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 235000019253 formic acid Nutrition 0.000 claims abstract description 6
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 125000003118 aryl group Chemical group 0.000 claims abstract description 4
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 4
- 238000005524 ceramic coating Methods 0.000 claims description 28
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 26
- 229910052710 silicon Inorganic materials 0.000 claims description 26
- 239000010703 silicon Substances 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000000945 filler Substances 0.000 claims description 15
- 239000002585 base Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 239000010941 cobalt Substances 0.000 claims description 8
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- -1 aluminium silver Chemical compound 0.000 claims description 6
- 238000004581 coalescence Methods 0.000 claims description 5
- 239000011737 fluorine Substances 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 229960001866 silicon dioxide Drugs 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- CZIRZNRQHFVCDZ-UHFFFAOYSA-L titan yellow Chemical compound [Na+].[Na+].C1=C(C)C(S([O-])(=O)=O)=C2SC(C3=CC=C(C=C3)/N=N/NC3=CC=C(C=C3)C3=NC4=CC=C(C(=C4S3)S([O-])(=O)=O)C)=NC2=C1 CZIRZNRQHFVCDZ-UHFFFAOYSA-L 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000006482 condensation reaction Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 150000004678 hydrides Chemical class 0.000 claims description 2
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005488 sandblasting Methods 0.000 claims description 2
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 2
- 125000003107 substituted aryl group Chemical group 0.000 claims description 2
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 2
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 2
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 5
- 238000000227 grinding Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 2
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 abstract 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 1
- 229920002545 silicone oil Polymers 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 4
- SSLNXNMYNJKQTO-UHFFFAOYSA-N diethoxy-octyl-(2,2,2-trifluoroethoxy)silane Chemical compound FC(CO[Si](OCC)(OCC)CCCCCCCC)(F)F SSLNXNMYNJKQTO-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- YOALFLHFSFEMLP-UHFFFAOYSA-N azane;2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoic acid Chemical compound [NH4+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YOALFLHFSFEMLP-UHFFFAOYSA-N 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000008279 sol Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention relates to a non-stick ceramic paint and a coating method thereof, belonging to the technical field of a process for coating liquid or other fluids on a surface. The non-stick ceramic paint is prepared by mixing a component A and a component B according to a mass ratio of 2: 0.5-2. The component A comprises, by mass, 45 to 100% of silica sol, 0 to 30% of a pigment, 0 to 23% of a filling material and 0 to 2% of a dispersing aid and is prepared by mixing the above-mentioned components and then grinding the components for more than 2 h. The component B is prepared by mixing the following components by mass: 0.2 to 2% of a catalyst, 3 to 15% of silicon fluoride, 2 to 10% of an auxiliary agent, 0 to 10% of an organic solvent, with the balance being at least one silane, wherein the catalyst is formic acid, acetic acid or a mixture of formic acid and acetic acid. The silane has a general molecular formula as represented by RnSi(OR')4-n, wherein R is an alkyl group, an epoxy group or an aryl group, R' is an alkyl group of C1 to C5, and n is equal to 0, 1 or 2. A coating prepared from the paint does not contain substances like PTFE and PFOA, is environment-friendly and energy-saving and has wear resistance, scratch resistance and excellent non-stick performance.
Description
Technical field
The invention belongs to the Technology field to surperficial coating liquid or other fluids, relate to a kind of non-stick ceramic coating and coating method thereof.
Background technology
Non-viscous paint is to be developed rapidly later by the invention application in 1958, is widely used in fields such as cooker, small household appliances, and it is convenient to have brought to people's life.Its core of existing non-sticky metallic coating is Teflon---polytetrafluoroethylene (PTFE), but many scientific research reports point out that " Teflon " coating can discharge objectionable impurities under high temperature (more than 260 ℃) situation in recent years.And tetrafluoroethylene can add ammonium perfluorocaprylate (PFOA) in process of production, after the ammonium perfluorocaprylate that chemical property is stable (PFOA) enters nature and human body, the meeting long-term existence, can not very fast decomposition, the ammonium perfluorocaprylate of low dosage (PFOA) has been proved carcinogenesis and other adverse consequencess in experimentation on animals.Therefore, for the kitchen tools manufacturer, be badly in need of seeking a kind of coating of " Teflon " that can replace as the surface-coated of non-sticking cooking utensils.
Having the excellent not ceramic coating of viscosity and be a is the non-viscous paint of main raw material with the inorganics, and " Teflon " incomparable advantage is being arranged aspect environment protection and the save energy.But existing ceramic non-stick coating is in viscosity not, toughness, some deficiency of aspect such as wear-resisting, makes its limitation to some extent on using.Therefore, need exploitation a not only in toughness, meet the demands aspect wear-resisting but also aspect viscosity not, have the non-stick ceramic coating of outstanding representation to satisfy people to the needs of environmental protection non-sticky metallic coating.
Summary of the invention
The defective that the present invention is directed to prior art provides a kind of excellent not non-stick ceramic coating of viscosity that has, and the coating that adopts this coating to make does not contain materials such as PTFE and PFOA, and environmental protection and energy saving have wear-resisting, scratch resistance and excellent not viscosity energy simultaneously.
Another object of the present invention provides a kind of coating method of this non-stick ceramic coating.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of non-stick ceramic coating is to be mixed by mass ratio 2:0.5 ~ 2 by A, B two components, wherein: the A component: by the component in massfraction: silicon sol 45～100%, pigment 0～30%, filler 0～23%, dispersing auxiliary 0 ~ 2% mixes the back grinding and obtains more than 2 hours; B component: mixed by following component in massfraction: catalyzer 0.2 ~ 2%, silicon fluoride 3 ~ 15%, auxiliary agent 2 ~ 10%, organic solvent 0 ~ 10%, surplus is at least a silane; Described catalyzer is formic acid or acetic acid or the two mixture; Described silane has following general molecular formula R
nSi (OR ')
4-n, wherein: R is alkyl, epoxy group(ing) or aryl, R ' is C
1-C
5Alkyl; N=0,1,2.
Silicon sol
Silicon sol among the present invention is the dispersion liquid of nano level silica dioxide granule in water or in the solvent.Silicon sol as the silane condensation dehydration of one of inorganic filming substance matter and hydrolysis, obtains SiO in the present invention
2Reticulated structure, thus make non-sticky metallic coating have performances such as hardness, erosion resistance, temperature tolerance.
Pigment
In the present invention, pigment is heatproof pigment, uses as tinting material.Heatproof pigment among the present invention is that nontoxic heatproof is at the pigment dyestuff more than 200 ℃ or mineral dye, can detect by ROHS, include but not limited to: rutile, too white, titan yellow, iron oxide black, red iron oxide, cobalt black, cobalt blue, cobalt green, carbon black, pearly-lustre and aluminium silver powder etc.
Filler
In the present invention, filler is the physique filler, is that heatproof is nontoxic, is selected from inorganic materials such as whisker class, fiber-like, comprising: silica powder, silicon whisker, aluminum oxide etc.
Silicon fluoride
In the present invention, silicon fluoride improves the smooth and reduction surface tension of coatingsurface as sticking auxiliary agent, make ceramic coating cannot not have stickingly and performance easy to clean, its addition is 3 ~ 15%, when addition less than 2% the time, viscosity is not bad, when greater than 15% the time, viscosity can not promote not obviously, and cost is higher relatively.
In the B component, the general molecular formula of described silicon fluoride is Rf
nSi (OR ')
4-n, Rf is substituted alkyl, the substituted aryl that contains fluorine, R ' is C
1-C
5Alkyl; N=0,1,2.The preferred ten trifluoro octyltri-ethoxysilane of the present invention.
Ten trifluoro octyl groups in the ten trifluoro octyltri-ethoxysilane do not participate in reaction, ten trifluoro octyl groups make coating have the low surface tension of fluorine material and not sticking characteristic, hydrolysis can take place and form silanol in triethoxy under acidic conditions, silane after itself and silicon sol, the hydrolysis and substrate surface-OH can take place should, thereby silicon fluoride is connected in the coating, thereby the embodiment that the not viscosity of coating can be good, and has persistence.
Not sticking auxiliary agent in traditional non-stick ceramic coating is generally selected silicone oil, and silicone oil has following shortcoming as not sticking auxiliary agent:
A. many slightly consistency can to occur not good for add-on;
B. the not viscosity of silicone oil has certain access times, and viscosity can not have persistence;
C. general silicone oil does not participate in reaction, can not be combined closely with coating.
The present invention selects ten trifluoro octyltri-ethoxysilane and silicone oil mix and match to use, and guarantees the not viscosity at coating initial stage by using a small amount of silicone oil, participates in the viscosity not for a long time that reaction guarantees coating by silicon fluoride.
Silane
In the present invention, the general molecular formula of silane is R
nSi (OR ')
4-n, wherein: the alkyl that R is, epoxy group(ing), aryl, non-fluorine substituted alkyl or non-fluorine substituted aryl, R ' is C
1-C
5Alkyl; N=0,1,2.Silane is the another kind of filmogen except silicon sol in the present invention, is selected from least a in methyltrimethoxy silane, Union carbide A-162, phenyltrimethoxysila,e, phenyl triethoxysilane, dimethyldimethoxysil,ne, methyl silicate, tetraethyl silicate or the epoxy radicals silicone hydride.
Auxiliary agent
Auxiliary agent in the present invention is one or more in film coalescence aid, sticking power auxiliary agent, not sticking auxiliary agent or the leveling auxiliary agent.Wherein leveling auxiliary agent is the auxiliary agent that helps the wetting levelling of coating, can be silicone oil, tensio-active agent etc.Film coalescence aid is auxiliary coating film forming, prevents that the auxiliary agent of film cracking from can be pure soluble acrylic resin or reactive silane etc.The addition of auxiliary agent is 2 ~ 10% of coating quality.Auxiliary agent be chosen as general knowledge known in this field, the emphasis that non-the present invention will study.
As preferably, in the A component, the pH of described silicon sol is 3 ~ 11, and particle diameter is 5 ~ 100nm, and the content of silicon-dioxide is 20 ~ 55% in the silicon sol.When the content of silicon-dioxide in the silicon sol was lower than 20%, the solid content of non-stick ceramic coating was lower, is unfavorable for spraying application, when the content of silicon-dioxide in the silicon sol greater than 55% the time, the nanometer particle size of silicon sol is bigger, non-stick ceramic coating can not be stablized preservation.
As preferably, in the A component, described pigment is selected from one or more in rutile, too white, titan yellow, iron oxide black, red iron oxide, cobalt black, cobalt blue, cobalt green, carbon black, pearly-lustre or the aluminium silver powder; Described filler be particle diameter less than the powder filler of 100 μ m, be selected from one or more of silica powder, silicon whisker, aluminum oxide, diatomite, silicon carbide or diamond etc.; Described dispersing auxiliary is BYK-190.
As preferably, in the B component, described catalyzer addition is 0.2 ~ 0.7% of A, B two component total masses.When the amount of catalyzer less than 0.2% the time, reaction is difficult for carrying out, and can not play the effect of catalysis, when the amount of catalyzer greater than 0.7% the time, speed of response is very fast, is unfavorable for that product is stable.
As preferably, in the B component, described organic solvent is Virahol, and described auxiliary agent comprises one or more in film coalescence aid, sticking power auxiliary agent, sticking auxiliary agent or the leveling auxiliary agent.
As preferably, ceramic coating is characterized in that: be to be mixed by mass ratio 2:1 by A, B two components, wherein:
A component: by the component in massfraction: silicon sol 58～84.7%, pigment 5～20%, filler 10～20%, dispersing auxiliary 0.3 ~ 2% mixes the back and grinds and obtaining more than 2 hours;
B component: mixed by following component in massfraction: catalyzer 0.3 ~ 2%, silicon fluoride 3 ~ 15%, auxiliary agent 2 ~ 10%, organic solvent 0 ~ 10%, surplus is at least a silane.
A kind of coating method of described non-stick ceramic coating, this method may further comprise the steps:
A. pre-treatment: metal base is carried out pickling, alkali cleaning, sandblasting, make its surface clean, coarse;
B. coating slaking: before the slaking, elder generation stirs A, B two components separately and avoids in the A component caking being arranged; Slaking is added according to A, B quality proportioning, stirs or rolls 1 ~ 4 hour, and the condensation reaction that is hydrolyzed obtains the coating after the slaking after reacting completely;
C. paint spay-coating: the metal base after a step process is preheating to 40 ~ 80 ℃, and the paint spay-coating that the b step is obtained is on the metal base of preheating;
D. sintering curing: the metal base that the c step is obtained is 140 ~ 180 ℃ of following levellings oven dry, cools off to get final product behind 280-300 ℃ of following sintering.
As preferably, in the d step, the time of levelling oven dry is 8-10 minute, and the time of sintering is 8-10 minute.
The invention has the beneficial effects as follows: the coating environmental protection and energy saving of adopting non-stick ceramic coating of the present invention to make, hardness height not only, heat resistance is good, and has not viscosity of excellence, owing to do not contain materials such as PTFE and PFOA, so Environmental Safety, accord with the FDA relevant criterion of Food Contact.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.Should be appreciated that enforcement of the present invention is not limited to the following examples, any pro forma accommodation and/or change that the present invention is made all will fall into protection domain of the present invention.
In the present invention, if not refer in particular to, all part, per-cents are weight unit, and all equipment and raw material etc. all can be buied from market or the industry is commonly used.
Embodiment 1-8
A kind of non-stick ceramic coating is mixed by mass ratio 2:0.5 ~ 2 by A, B two components, wherein:
A component: according to component and the content of table 1, with silicon sol, pigment, filler and dispersing auxiliary, mix the back grinding and obtain more than 2 hours;
The particle diameter of silicon sol is 5 ~ 100nm, and the content of silicon-dioxide is 20 ~ 55%(weight in the silicon sol).
Pigment is selected from rutile, too white, titan yellow, iron oxide black, red iron oxide, cobalt black, cobalt blue, cobalt green, carbon black, pearly-lustre or the aluminium silver powder one or more according to producing needs; Filler be particle diameter less than the powder filler of 100 μ m, be selected from one or more of silica powder, silicon whisker, aluminum oxide, diatomite, silicon carbide or diamond etc.; Pigment and filler do not have influence to product quality.
The B component: according to component and the content of table 2, with catalyzer, silicon fluoride, auxiliary agent, organic solvent, and silane mixture.
Table 1: the A component is formed proportioning (unit: kg)
Table 2:B component is formed proportioning (unit: kg)
Material in table 1 and the table 2 is specially:
(1) silicon sol---the SNOWTEX-0 of Nissan;
(2) pigment extender---the aluminum oxide of 5 micron grain sizes;
(3) dispersing auxiliary---BYK-190;
(4) silicon fluoride---ten trifluoro octyltri-ethoxysilane;
(5) organic solvent---be respectively Virahol, Pyranton, ethyl cellosolve;
(6) silicone oil---Dow Corning Corporation, DOWCORNING 1-9770;
(7) catalyzer---be respectively formic acid, acetic acid, formic acid and acetate mixture;
(8) auxiliary agent---film coalescence aid, sticking power auxiliary agent, not sticking auxiliary agent or leveling auxiliary agent, this is this area common agents, selects to add according to product performance.
The non-stick ceramic coating that embodiment 1-8 is obtained mixes according to the weight ratio of A:B=2:1, is coated on the die casting aluminium base material by following method:
A. pre-treatment: metal base pickling, alkali cleaning, sandblast etc. are made its surface degreasing, coarse, to increase compactness and the sticking power of coating.
B. coating slaking: before the slaking, earlier A, B two components are stirred separately (in the A component caking can not be arranged); Slaking is added according to the quality proportioning of A, B component, stirs or rolls 1 ~ 4 hour, and the condensation reaction that is hydrolyzed obtains coating.
C. paint spay-coating: will be preheating to through the base material of a step process in 40 ~ 80 ℃ of scopes, the coating that step b is obtained by compressed air spraying on the base material of preheating.
D. sintering curing: the base material that the c step is obtained was 140 ~ 180 ℃ of following levellings oven dry 10 minutes, and under 280-300 ℃, sintering cooled off after 10 minutes, obtained the non-stick ceramic coating, detected its performance as follows, and detected result sees Table 3.
Method for testing performance:
Pencil hardness: test Chinese pencil hardness, GB/T 6739;
Coating thickness: film thickness gauge, GB/T 13452.2-1992;
Gloss: 60 ° of glossometers, JIS K 6893-1995;
Sticking power: 2mm * 2mm, grid, 100 * 100,3M adhesive tape 10 times, JIS K 6894-1996;
Film cracking: 80 times of magnifying glasses are observed the film cracking situation;
Alkali resistance: 5% aqueous sodium carbonate bubble 24 hours, JIS K 5,600 8.21;
Acid resistance: 5% aqueous sulfuric acid bubble 24 hours, JIS K 5,600 8.22;
Resistance to salt water: 5% sodium chloride aqueous solution bubble 24 hours, JIS K 5,600 8.23;
Solvent resistance: MEK solvent 1 kgf wiping 100 times back and forth;
Thermotolerance: 300 ℃ of constant temperature 24 hours, observe aberration and change, JIS K 5,600 8.13;
Viscosity not: 170 ± 10 ℃ of fried egg, BS 70069:1988.
Table 3
By above-mentioned data as can be known, viscosity does not improve much when adding silicon fluoride 3-15%, and when strengthening consumption, cost increases, and viscosity improves limited.When silicon fluoride and silicone oil are used, viscosity can not increase yet, but silicon oil dosage otherwise the side effect of silicone oil emersion coatingsurface can occur less than 2%.The coating that other non-stick ceramic coating of the present invention obtains through coating, excellent wear resistance, good toughness, easy to clean and sticking characteristic are given prominence to.Meet the RHOS instruction, simultaneously, also accord with the FDA relevant criterion of Food Contact.
Above-described embodiment is a kind of preferable scheme of the present invention, is not that the present invention is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (10)
1. non-stick ceramic coating is characterized in that: be to be mixed by mass ratio 2:0.5 ~ 2 by A, B two components, wherein:
A component: by the component in massfraction: silicon sol 45～100%, pigment 0～30%, filler 0～23%, dispersing auxiliary 0 ~ 2% mixes the back and grinds and obtaining more than 2 hours;
B component: mixed by following component in massfraction: catalyzer 0.2 ~ 2%, silicon fluoride 3 ~ 15%, auxiliary agent 2 ~ 10%, organic solvent 0 ~ 10%, surplus is at least a silane; Described catalyzer is formic acid or acetic acid or the two mixture; Described silane has following general molecular formula R
nSi (OR ')
4-n, wherein: R is alkyl, epoxy group(ing) or aryl, R ' is C
1-C
5Alkyl; N=0,1,2.
2. non-stick ceramic coating according to claim 1, it is characterized in that: in the A component, the pH of described silicon sol is 3 ~ 11, and particle diameter is 5 ~ 100nm, and the content of silicon-dioxide is 20 ~ 55% in the silicon sol.
3. non-stick ceramic coating according to claim 1 and 2, it is characterized in that: in the A component, described pigment is selected from one or more in rutile, too white, titan yellow, iron oxide black, red iron oxide, cobalt black, cobalt blue, cobalt green, carbon black, pearly-lustre or the aluminium silver powder; Described filler be particle diameter less than the powder filler of 100 μ m, be selected from one or more of silica powder, silicon whisker, aluminum oxide, diatomite, silicon carbide or diamond etc.; Described dispersing auxiliary is BYK-190.
4. non-stick ceramic coating according to claim 1 and 2, it is characterized in that: in the B component, described catalyzer addition is 0.2 ~ 0.7% of A, B two component total masses.
5. non-stick ceramic coating according to claim 1 and 2, it is characterized in that: in the B component, the general molecular formula of described silicon fluoride is Rf
nSi (OR ')
4-n, Rf is substituted alkyl, the substituted aryl that contains fluorine, R ' is C
1-C
5Alkyl; N=0,1,2.
6. non-stick ceramic coating according to claim 1 and 2, it is characterized in that: in the B component, described organic solvent is Virahol, described auxiliary agent comprises one or more in film coalescence aid, sticking power auxiliary agent, sticking auxiliary agent or the leveling auxiliary agent.
7. non-stick ceramic coating according to claim 1 and 2, it is characterized in that: in the B component, described silane is selected from least a in methyltrimethoxy silane, Union carbide A-162, phenyltrimethoxysila,e, phenyl triethoxysilane, dimethyldimethoxysil,ne, methyl silicate, tetraethyl silicate or the epoxy radicals silicone hydride.
8. non-stick ceramic coating according to claim 1 and 2, it is characterized in that: ceramic coating is characterized in that: be to be mixed by mass ratio 2:1 by A, B two components, wherein:
A component: by the component in massfraction: silicon sol 58～84.7%, pigment 5～20%, filler 10～20%, dispersing auxiliary 0.3 ~ 2% mixes the back and grinds and obtaining more than 2 hours;
B component: mixed by following component in massfraction: catalyzer 0.3 ~ 2%, silicon fluoride 3 ~ 15%, auxiliary agent 2 ~ 10%, organic solvent 0 ~ 10%, surplus is at least a silane.
9. the coating method of the described non-stick ceramic coating of claim 1 is characterized in that this method may further comprise the steps:
A. pre-treatment: metal base is carried out pickling, alkali cleaning, sandblasting, make its surface clean, coarse;
B. coating slaking: before the slaking, elder generation stirs A, B two components separately and avoids in the A component caking being arranged; Slaking is added according to A, B quality proportioning, stirs or rolls 1 ~ 4 hour, and the condensation reaction that is hydrolyzed obtains the coating after the slaking after reacting completely;
C. paint spay-coating: the metal base after a step process is preheating to 40 ~ 80 ℃, and the paint spay-coating that the b step is obtained is on the metal base of preheating;
D. sintering curing: the metal base that the c step is obtained is 140 ~ 180 ℃ of following levellings oven dry, cools off to get final product behind 280-300 ℃ of following sintering.
10. coating method according to claim 9 is characterized in that: in the d step, the time of levelling oven dry is 8-10 minute, and the time of sintering is 8-10 minute.
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 321000 Zhejiang city of Jinhua province Hwadae Jinpan Development District Road No. 588 Co-patentee after: ZHEJIANG PFLUON NEW MATERIAL Co.,Ltd. Patentee after: Zhejiang Pengfulong Science and Technology Co.,Ltd. Address before: 321000 Zhejiang city of Quzhou province Hwadae Jinpan Development District Road No. 588 Co-patentee before: ZHEJIANG PFLUON NEW MATERIAL Co.,Ltd. Patentee before: ZHEJIANG PFLUON TECHNOLOGY Co.,Ltd. |