EP1858819A1 - Sol-gel-antihaft-beschichtungen mit verbesserter thermischer stabilität - Google Patents
Sol-gel-antihaft-beschichtungen mit verbesserter thermischer stabilitätInfo
- Publication number
- EP1858819A1 EP1858819A1 EP06725751A EP06725751A EP1858819A1 EP 1858819 A1 EP1858819 A1 EP 1858819A1 EP 06725751 A EP06725751 A EP 06725751A EP 06725751 A EP06725751 A EP 06725751A EP 1858819 A1 EP1858819 A1 EP 1858819A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- fullerene
- additive
- coating solution
- sol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 162
- 239000011248 coating agent Substances 0.000 claims abstract description 148
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical group C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 claims abstract description 79
- 229910003472 fullerene Inorganic materials 0.000 claims abstract description 48
- 239000000654 additive Substances 0.000 claims abstract description 41
- 230000000996 additive effect Effects 0.000 claims abstract description 35
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000002071 nanotube Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 14
- -1 based on titanates Chemical class 0.000 claims abstract description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000004645 aluminates Chemical class 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052796 boron Inorganic materials 0.000 claims abstract description 4
- 150000001642 boronic acid derivatives Chemical class 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 239000010936 titanium Substances 0.000 claims abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 4
- 239000006229 carbon black Substances 0.000 claims description 19
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 14
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 210000003298 dental enamel Anatomy 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 10
- ATLMFJTZZPOKLC-UHFFFAOYSA-N C70 fullerene Chemical compound C12=C(C3=C4C5=C67)C8=C9C%10=C%11C%12=C%13C(C%14=C%15C%16=%17)=C%18C%19=C%20C%21=C%22C%23=C%24C%21=C%21C(C=%25%26)=C%20C%18=C%12C%26=C%10C8=C4C=%25C%21=C5C%24=C6C(C4=C56)=C%23C5=C5C%22=C%19C%14=C5C=%17C6=C5C6=C4C7=C3C1=C6C1=C5C%16=C3C%15=C%13C%11=C4C9=C2C1=C34 ATLMFJTZZPOKLC-UHFFFAOYSA-N 0.000 claims description 9
- 229910010272 inorganic material Inorganic materials 0.000 claims description 9
- 239000011147 inorganic material Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000000678 plasma activation Methods 0.000 claims description 8
- 239000004071 soot Substances 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 6
- 230000001476 alcoholic effect Effects 0.000 claims description 4
- 238000000280 densification Methods 0.000 claims description 3
- 150000004760 silicates Chemical class 0.000 abstract 1
- 241000894007 species Species 0.000 description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 239000010410 layer Substances 0.000 description 10
- 239000002516 radical scavenger Substances 0.000 description 9
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000011109 contamination Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000010348 incorporation Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001994 activation Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000007259 addition reaction Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229940123457 Free radical scavenger Drugs 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000021523 carboxylation Effects 0.000 description 2
- 238000006473 carboxylation reaction Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- OYFJQPXVCSSHAI-QFPUQLAESA-N enalapril maleate Chemical compound OC(=O)\C=C/C(O)=O.C([C@@H](C(=O)OCC)N[C@@H](C)C(=O)N1[C@@H](CCC1)C(O)=O)CC1=CC=CC=C1 OYFJQPXVCSSHAI-QFPUQLAESA-N 0.000 description 2
- 238000003682 fluorination reaction Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012038 nucleophile Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003878 thermal aging Methods 0.000 description 2
- 238000001029 thermal curing Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 244000141353 Prunus domestica Species 0.000 description 1
- 241000220304 Prunus dulcis Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000020224 almond Nutrition 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001723 carbon free-radicals Chemical class 0.000 description 1
- 239000002134 carbon nanofiber Substances 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- YUWFEBAXEOLKSG-UHFFFAOYSA-N hexamethylbenzene Chemical compound CC1=C(C)C(C)=C(C)C(C)=C1C YUWFEBAXEOLKSG-UHFFFAOYSA-N 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine hydrate Chemical compound O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000008256 whipped cream Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/006—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels to produce glass through wet route
- C03C1/008—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels to produce glass through wet route for the production of films or coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/008—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character comprising a mixture of materials covered by two or more of the groups C03C17/02, C03C17/06, C03C17/22 and C03C17/28
Definitions
- the present invention relates to coatings on thermally highly stressed or highly loadable substrates and coating solutions for highly loaded or highly durable substrates coated with these coatings substrates or articles, processes for preparing the coating solutions and the use of fullerene, fullerene derivatives, C Nanotubes and their derivatives in base coating systems to form "doped" coating solutions.
- a coating of metallic surfaces known in the prior art is described in DE-A 197 14 949.
- the monolayer or sol-gel coating system described there shows a good adhesion to the metallic surface, a good scratch resistance and a low surface energy of ⁇ 20 mN / m under moderate conditions (up to approx 180 ° C service temperature, baking application) allows easy cleaning.
- moderate conditions up to approx 180 ° C service temperature, baking application
- layer systems fail very rapidly, that is, such layer systems are no longer easily cleaned or only cleaned to destroy the layer system.
- the contact angle of such layer systems to water when stored at 350 ° C within 4 h to below 80 °.
- Even by adding classic antioxidants such as soot the temperature resistance can not be increased significantly. This ultimately means an unsatisfactorily short durability of the coatings.
- the known non-stick coatings fail in a too short period of time for practical use. This is particularly because the thermal attack on the coating is accompanied by a chemical attack by the pollution and its thermal decomposition products as well as a reaction in the gas phase. In addition, there is usually a strong chemical and mechanical stress resulting from subsequent cleaning processes.
- catalytically active species eg, traces of metals
- oxygen which can be converted into its highly reactive singlet form
- the formation of highly reactive chemical radicals plays a decisive role in the course of the destruction processes.
- autoxidation processes the detachment of an H atom from a double bond in the alpha position (activated CH 2 group) in a first stage can form carbon radicals which subsequently react with oxygen to form peroxide radicals and hydroperoxides.
- the highly reactive radicals that are formed in these processes are primarily for the Destruction of the non-stick coating responsible and ultimately lead to a drastic deterioration of the function and the failure of the coating to its complete destruction.
- Another layer system with low surface energy is based on a SiO 2 base system, which may for example be that described in DE-A 197 14 949, which is modified by POSS compounds (polyhedral oligomeric silsesquioxane), polyglycerols and / or fluoroalkylsilanes as additives.
- POSS compounds polyhedral oligomeric silsesquioxane
- polyglycerols polyglycerols
- fluoroalkylsilanes fluoroalkylsilanes
- a basic coating system is here any silicate or non-silicate coating system described in the prior art, in particular on a sol-gel basis (monolayer or sol-gel layer system) understood (silicate coating systems are inventively preferred).
- Particularly preferred for the purposes of the present invention are the base coating systems described in DE-As 197 14 949 and 103 19 954.
- an "activated species” see below
- Non-silicate systems are in particular (sol-gel) systems based on hydrolyzable titanates, aluminates, borates and zirconates or nanoscale oxides of titanium, aluminum, boron or zirconium.
- the basecoat systems are preferably sol-gel based systems
- the invention may be other layered systems (e.g., organic binders).
- coating solutions in the sense of the present invention mixtures are defined which are finally applied to the substrate (eg metal surface) or the device, device or component and thermally compacted there, for example.
- these coating solutions are always “doped", ie they always contain an "activated species” as an additive.
- "Undoped” coating solutions are by definition basecoat systems.
- "doped" coating solutions are either solutions in the narrow sense or colloidal solutions or suspensions.
- Base coating systems and coating solutions according to the invention can be applied to substrates (eg metal surfaces) or devices, devices or components and, for example, thermally compacted there.
- a coating is a base coating system or a coating solution after its thermal densification.
- the inventors of the present invention have faced in view of these deficiencies in the prior art, to overcome these shortcomings and to provide a coating whose durability and temperature resistance are significantly improved, so that the removal of contaminants (eg baking contaminants) also Over a longer period of use can be made easier without the coating is impaired or unnecessarily quickly destroyed.
- contaminants eg baking contaminants
- the base coating system is e.g. the coating system described in DE-A 197 14 949 or DE-A 103 19 954, but may also be any other silicate or non-silicate (SoI-GeI) coating system.
- the advantage of the present invention or non-stick coating of the invention is that it has certain additives ("activated species") that are absent in the eg silicate base coating system and that the temperature resistance and the fouling behavior of the non-stick coating on glass, Improve (drastically) enamel, ceramics and metals (where appropriate, antioxidants used in the base coating system according to the prior art can be omitted according to the invention).
- Fullerenes in particular C 60 - or C 70 fullerenes, but also C 76 -, C 78 - and C 84 fullerenes
- fullerene derivatives and / or C nanotubes or their derivatives, including the mixtures of at least two, are also suitable as additives according to the invention these classes of substances are particularly preferred.
- the fullerenes, the fullerene derivatives and / or the C-nanotubes or their derivatives can be used as pure substance. But they can also be used mixed with other substances such as carbon black. It is preferable for the substances to be used to Radikalfönger. These can intercept the radicals formed during use (eg the oven) and thus prevent the usually subsequent radical (chain) reactions. Since the free-radical scavengers are consumed in the course of use (ie in the course of the reaction between, for example, soiling and coating) and can therefore provide only temporary protection, it is preferable to use highly effective radical scavengers.
- a new class of highly effective radical scavengers are the fullerenes mentioned above (in particular C 60 or C 70 molecules, but also the C 76 , C 78 and C 84 molecules), their derivatives, but also C nanotubes and their derivatives Already the presence of only 0.01% (w / w) of "activated species" (as activated species, for example, an additive is called, which is a mixture of 6% (w / w) fullerene C 60 , 1.5% (w / w) fullerene C 70 and 92.5% (w / w) soot or contains), based on the coating solution, ie before densification of the coating solution, cause an improvement in thermal stability of over 100% on thermal aging of the coating ,
- non-stick coating according to the invention can additionally be positively influenced in its aging behavior using classical antioxidants such as graphite or carbon black.
- other additives that carbonize only in the process of aging, that is, during use e.g., at temperatures of about 300 ° C or higher, can make a positive contribution to improving long-term stability.
- the coating according to claim 1 is (1) a coating whose sol-gel layer system is a silicate sol-gel Layer system is, (2) a coating, which is applied to an inorganic material as a substrate, (3) a coating, which is applied to glass, enamel, ceramic, semiconductor or metal, (4) a coating, which is an additive as an additive which additionally comprises carbon black, (5) a coating in which the additive, based on the coating, contains 0.0002 to 0.5% by weight (2 to 5000 ppm), in particular 0.0016 to 0.25 ( 16 to 2500 ppm) or 0.002 to 0.1 wt .-% (20 to 1000 ppm), (6) a coating whose additive is a mixture of 6% (w / w) fullerene C 60 , 1.5% (w / w) fullerene C 70 and 92.5% (w / w) soot or (7) a coating
- the coating solution according to claim 9 is (1) a coating solution whose sol-gel layer system is a silicate sol Gel layer system is, (2) a coating solution applied to an inorganic material as a substrate, (3) a coating solution applied to glass, enamel, ceramic, semiconductor or metal, (4) a coating solution used as an additive (5) a coating solution in which the additive, based on the coating solution, is 0.0001 to 0.05% by weight (1 to 500 ppm), especially 0.0008 to 0.025 ( 8 to 250 ppm) or 0.001 to 0.01% by weight (10 to 100 ppm), (6) a coating solution whose additive is a mixture of 6% (w / w) Fullerene C 60 , 1.5% (w / w) fullerene C 70 and 92.5% (w / w) carbon black, or (7) a coating solution containing as an additive an additive which, in
- the above% by weight data refer to additive compositions of about 5-10% (w / w) fullerene C 60 , 1-5% (w / w) fullerene C 70 and 85-94% (w / w Carbon black / 85-94% (w / w) of carbon black and graphite, but are not limited to these compositions as long as the carbon black or soot and graphite content is not larger than 96% by weight.
- an additional aspect of the present invention relates to a method of making this coating solution according to claim 17.
- the method according to claim 17 is (1) a method in which the additive or the " activated species "in step b1) in an aqueous / alcoholic solvent, or (2) a process in which 0-30 minutes elapse between the end of step a) and the beginning of step b).
- Yet another aspect of the present invention relates to the use of fullerenes, fullerene derivatives, C nanotubes and / or derivatives of C nanotubes in a basecoat system to form a "doped" coating solution according to claim 9.
- another aspect of the invention is the use of fullerenes, fullerene derivatives, C-nanotubes and / or derivatives of C-nanotubes in a coating according to claim 1.
- the device, device or component according to claim 22 is (1) a device, apparatus - or component in which the surface comprises an inorganic material such as glass, enamel, ceramic, semiconductor or metal or (2) a device, device or component which is a baking oven muffle whose inner walls are coated, or a roasting or baking tray.
- the structure of the C 60 fullerene can be used to derive important properties that essentially determine its chemical behavior.
- An essential feature of the structure of C 60 is, for example, that all carbon atoms are sp 2 -hybridized and identical in their properties. Each atom is linked to three others through a double and two single bonds, with double and single bonds alternating. Such a molecule would be thought to have an aromatic character, that is, the pi-electrons are delocalized and all bonds are the same length. However, this is not the case in C 60 ; the bonds between two carbon six-membered rings are significantly shorter at 138 pm than the bonds between a five-membered and a six-membered ring (145 pm). The former possess double bond character while the latter possess single bond character. This precludes complete delocalization of the pi-electrons. In fact, C 60 shows reactions that are similar to those of conjugated, electron-poor polyalkenes.
- Preferred reactions of C 60 are addition reactions.
- the normally planar sp 2 system is highly strained on the curved surface of the C 60 molecule.
- the voltage energy is about 80% of the heat of formation of the molecule and thus creates an energetically unfavorable situation. When added to a C 60 carbon atom, this transitions from the sp 2 to the sp 3 state.
- Reactants of the C 60 molecule in addition reactions may include halogens, hydrogen, electrons, KMnO 4 , CCl 2 , cyclopentadiene (Cp), primary or secondary amines (R-NH 2 , R 2 NH), ethylenediamine (s) or aromatics such as hexamethylbenzene be.
- C 60 -Hal 2 , C 60 -H 2 , the C 60 -dianion, C 60 - (OH) 2 , etc. are then formed according to the reaction scheme shown in FIG.
- fullerene derivatives are the products of these and other addition reactions.
- C nanotubes are also possible with C nanotubes to obtain derivatives of the nanotubes.
- the carboxylated fullerenes / C nanotubes can then be esterified with alcohols.
- Particularly preferred are the fluorination for the fullerenes and the carboxylation and optionally esterification for the C nanotubes.
- carbon in the fullerene molecule (valid for C 60 , C 70 , but also for C 76 , C 78 and C 84 fullerene) prefers a tetrahedral bond arrangement (with simultaneous transition from sp 2 - in the sp 3 state - with addition of a nucleophile).
- the attachment to all 30 double bonds of the C 60 is not observed, since the bulging of the spherical structure can only take place to a certain extent.
- the addition of a maximum of 24 bromine atoms or 26 hydroxyl groups has been observed.
- the molecule would become unstable due to the recurrence of strong voltages.
- C 60 has the properties of an electron acceptor.
- negatively charged carbon atoms carbbanions
- carbenium ions will form, aiming for a planar structure and thus increasing the voltage.
- Fullerenes, fullerene derivatives, C-nanotubes or their derivatives and all their mixtures have only a negligible solubility in aqueous / alcoholic (coating) solutions. Therefore, they must be activated (e.g., tribochemically), because only in this way can a sufficient amount of them be dissolved in the said (polar) solvents or in the coating solution.
- plasma activation is also considered in order to improve the solubility of radical scavengers (fullerenes, fullerene derivatives, C nanotubes, their derivatives) in polar solvents.
- radical scavengers fullerene derivatives, C nanotubes, their derivatives
- oxygen nitrogen or noble gas
- reactive gases or gas mixtures for example ammonia, hydrogen, carbon oxides
- it is particularly advantageous to achieve the highest possible plasma activation for example by higher microwave powers and / or longer activation times), since this causes a further increase in the performance of the coating according to the invention.
- C nanotubes and their derivatives can also be plasma activated as well.
- Plasma activation involves energetic (thermal) degradation processes on the surface, which lead to their roughening, while plasma-chemical activation involves a known chemical process involving bond cleavage and bond formation as well as the usual redox processes involving the used reactive gas components (eg anodic oxidation processes and chemical reactions, eg with inorganic acids).
- the plasma activation is referred to in both cases, ie, not differentiated between the actual plasma activation and the plasma-chemical activation.
- one, possibly additional, chemical modification of the fullerenes are meant with fullerenes, as already explained above, C 60 , C 70 , C 76 , C 78 and C 84 fullerene), and the C Nanotubes in question to improve their solubility: the poorly soluble fullerene / C-nanotubes are chemically converted so that fullerene compounds or derivatives or derivatives of nanotubes arise that have polar groups attached to the carbon skeleton.
- fluorine-modified fullerenes or of carboxylated C nanotubes at least two F or COOH radicals are bonded to fullerene / C nanotube
- their mixtures as radical scavengers is advantageous since these derivatives not only have an increased solubility and increase the functionality of the non-stick coating according to the invention (improving the non-stick effect of the coating), but also increase the durability of the coating.
- the radical scavenger according to the present invention has been activated (eg by means of plasma activation), or is the fullerene at least in a more soluble fullerene derivative or the C Nanotube has been converted into a more soluble corresponding derivative, it is (the radical scavenger) so before as "activated species", it can be incorporated into alcohol or alcohol / water as a solvent (according to the present invention, but also other solvents can be used, see paragraph below) to give stable colloidal solutions. These can then be added to a basecoat system (the basecoat system is "doped" with the "activated species").
- the direct incorporation (the direct "doping") into the base coating system.
- the immediate incorporation of the "activated species" in the solvent mixture or base coating system Preferably, the production of the "activated species” and its incorporation into the solvent or into the base coating system will elapse. only 0-30 minutes, with 5-10 minutes being a preferred time period between preparation of the "activated species” and their incorporation.
- the time span may be longer than just max. Be 30 min.
- the "activated species” When the "activated species” is incorporated into the solvent, it may be stored in the solvent for a period of up to 5-10 days before the "activated species" solvent is added to the base coating system.
- Particularly preferred organic solvents are ethanol and diacetone alcohol.
- water inorganic LM
- a basic catalyst where the catalyst may be, for example, an amine of the general formula R-NH 2 , R 2 -NH, R 3 N or a quaternary ammonium salt.
- solvents are (organic or inorganic) hydroxides, for example ethanolamine, diethanolamine, triethanolamine, hydrazinium hydroxide, diisopropylamine, aminoethylethanolamine, LiOH, NaOH, KOH, Ba (OH) 2 , Ca (OH) 2 and especially tetramethylammo - Niumhydroxid.
- organic or inorganic hydroxides for example ethanolamine, diethanolamine, triethanolamine, hydrazinium hydroxide, diisopropylamine, aminoethylethanolamine, LiOH, NaOH, KOH, Ba (OH) 2 , Ca (OH) 2 and especially tetramethylammo - Niumhydroxid.
- the incorporation of larger amounts of the "activated species" into the basecoat system is preferred since a larger amount of free radical scavengers is then available.
- significant improvements in achieved thermal stability of the coating are 0.001-0.025 or even 0.05 wt .-% of the "activated species” (based on the coating solution) or 0.002-0.25 or even 0.5 wt .-% of the "activated species” (based on the coating ), even more significant improvements in the thermal stability of the coating are achieved.
- the concentration of the activated species can be increased to give further improved results. However, this is not preferred for economic reasons (fullerenes, etc., which make up the "activated species” are relatively expensive). On the other hand, however, the concentration of the "activated species” is too high (> 0.1 or 0.15 wt .-% of the "activated species", based on the coating solution, or> 0.2 or 1.5 wt % of the "activated species", based on the coating, the coating may lose its mechanical stability, Therefore, according to the invention, preferably 0.0001 to about 0.05% by weight (based on the coating solution) of the "activated species” or From 0.0002 to about 0.5% by weight (based on the coating).
- 0.0008 to 0.025% by weight and 0.001 to 0.01% by weight in each case based on the coating solution) or 0.0016 to 0.25 and 0.002 to 0.1% by weight (in each case based on the coating)
- the percentages by weight here refer to additive compositions of about 5-10% (w / w Fullerene C 60 , 1-5% (w / w) fullerene C 70 and 85-94% (w / w) soot (if necessary mixed with graphite).
- a correspondingly "doped" base coating system is the coating according to the invention.
- processing solution It can be applied as a solution / suspension, for example, to metal and, for example, thermally compressed (ie, a thermal curing takes place to form the non-stick coating according to the invention).
- the cure can also be done with NIR (near IR) emitters.
- the plates produced or coated according to the invention showed (determined on the basis of Critical angle measurements) compared to the comparison plates a significantly improved thermal stability and non-stick effect. Plates with coatings that had been "doped” with pure russet mixtures (each comparative 1) showed only minor improvements in the thermal stability of the coating compared to completely “undoped” coatings (Comparison 2), and only at carbon black concentrations of several wt% (1-10, more preferably 5-10 wt%).
- Example 1 The plates prepared in Example 1, which had been coated according to the invention or conventionally (with or without carbon black), were also examined for their cleanability: the number of cycles is determined until the light cleaning effect has subsided.
- a cycle consists of:
- the ingredients are finely pureed in a blender jar with the help of an electric mixer bar in about 2 minutes.
- Test contamination is applied by means of a syringe (0 2.2 mm at the syringe outlet) in such a way that droplet-shaped spots of approx. 50 mg / cm 2 are formed (soiling does not pass!).
- the sheets are cooled after removal to room temperature (20 ⁇ 5 ° C).
- Coating Number of cycles without any doping (pc.) 0, since it can not be cleaned with dishwashing flasks with carbon black as doping (St. d. T.) 1-2 with doping according to Example 1 (Inventive) with 10 ppm, based on the coating solution 3-4 with 100 ppm, based on the coating solution 4-5 with 200 ppm, based on the coating solution. 5
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510023466 DE102005023466A1 (de) | 2005-05-20 | 2005-05-20 | Sol-Gel-Antihaft-Beschichtungen mit verbesserter thermischer Stabilität |
| PCT/EP2006/061587 WO2006122858A1 (de) | 2005-05-20 | 2006-04-13 | Sol-gel-antihaft-beschichtungen mit verbesserter thermischer stabilität |
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| Publication Number | Publication Date |
|---|---|
| EP1858819A1 true EP1858819A1 (de) | 2007-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06725751A Withdrawn EP1858819A1 (de) | 2005-05-20 | 2006-04-13 | Sol-gel-antihaft-beschichtungen mit verbesserter thermischer stabilität |
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| Country | Link |
|---|---|
| EP (1) | EP1858819A1 (de) |
| DE (1) | DE102005023466A1 (de) |
| WO (1) | WO2006122858A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014187663A1 (de) | 2013-05-24 | 2014-11-27 | BSH Bosch und Siemens Hausgeräte GmbH | Beschichtung von gebrauchsoberflächen mit plasmapolymeren schichten unter atmosphärendruck zur verbesserung der reinigbarkeit |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009044011A1 (de) | 2009-09-15 | 2011-03-24 | Paul Hettich Gmbh & Co. Kg | Verfahren zum Herstellen einer beschichteten Auszugsführung |
| DE102009044717A1 (de) | 2009-12-01 | 2011-06-09 | Nano-X Gmbh | Verfahren zum Erleichtern der Ein- und Entformung von Polymeren oder Naturstoffen |
| CN112094105A (zh) * | 2020-01-10 | 2020-12-18 | 武汉科技大学 | 一种低碳镁碳砖及其制备方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5420081A (en) * | 1994-03-31 | 1995-05-30 | The Regents Of The University Of California Office Of Technology Transfer | Preparation of fullerene/glass composites |
| JPH08262512A (ja) * | 1995-03-23 | 1996-10-11 | Sumitomo Electric Ind Ltd | 非線形光学材料及び作製法 |
| DE19714949A1 (de) * | 1997-04-10 | 1998-10-15 | Inst Neue Mat Gemein Gmbh | Verfahren zum Versehen einer metallischen Oberfläche mit einer glasartigen Schicht |
| JP2003003119A (ja) * | 2001-06-26 | 2003-01-08 | Jsr Corp | 膜形成用組成物、膜の形成方法およびシリカ系膜 |
| US7378075B2 (en) * | 2002-03-25 | 2008-05-27 | Mitsubishi Gas Chemical Company, Inc. | Aligned carbon nanotube films and a process for producing them |
| JP2004256728A (ja) * | 2003-02-27 | 2004-09-16 | Jsr Corp | ポリオルガノシロキサン組成物 |
| US20040219093A1 (en) * | 2003-04-30 | 2004-11-04 | Gene Kim | Surface functionalized carbon nanostructured articles and process thereof |
| DE10319954A1 (de) * | 2003-05-02 | 2004-12-09 | Meyer, Gerhard, Prof. Dr. | Verfahren zur Herstellung von Funktionsmaterialien zur Erzeugung dauerhafter Niedrigenergiebeschichtungen |
-
2005
- 2005-05-20 DE DE200510023466 patent/DE102005023466A1/de not_active Ceased
-
2006
- 2006-04-13 EP EP06725751A patent/EP1858819A1/de not_active Withdrawn
- 2006-04-13 WO PCT/EP2006/061587 patent/WO2006122858A1/de not_active Ceased
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| None * |
| See also references of WO2006122858A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014187663A1 (de) | 2013-05-24 | 2014-11-27 | BSH Bosch und Siemens Hausgeräte GmbH | Beschichtung von gebrauchsoberflächen mit plasmapolymeren schichten unter atmosphärendruck zur verbesserung der reinigbarkeit |
| DE102013209709A1 (de) | 2013-05-24 | 2014-11-27 | BSH Bosch und Siemens Hausgeräte GmbH | Beschichtung von gebrauchsoberflächen mit plasmapolymeren schichten unter atmosphärendruck zur verbesserung der reinigbarkeit |
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| Publication number | Publication date |
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| WO2006122858A1 (de) | 2006-11-23 |
| DE102005023466A1 (de) | 2006-11-30 |
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