WO2001079142A1 - Oberfläche von keramischem material mit hydrophoben oder ultraphoben eigenschaften und verfahren zu ihrer erzeugung - Google Patents
Oberfläche von keramischem material mit hydrophoben oder ultraphoben eigenschaften und verfahren zu ihrer erzeugung Download PDFInfo
- Publication number
- WO2001079142A1 WO2001079142A1 PCT/EP2001/004244 EP0104244W WO0179142A1 WO 2001079142 A1 WO2001079142 A1 WO 2001079142A1 EP 0104244 W EP0104244 W EP 0104244W WO 0179142 A1 WO0179142 A1 WO 0179142A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- intermediate layer
- hydrophobic
- ultraphobic
- capillary
- layer
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 19
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 25
- 239000000126 substance Substances 0.000 claims description 16
- 229920001296 polysiloxane Polymers 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 150000002902 organometallic compounds Chemical class 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 7
- -1 cellulose fibers Chemical class 0.000 claims description 5
- 150000002894 organic compounds Chemical class 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 230000003115 biocidal effect Effects 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 150000001282 organosilanes Chemical class 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 230000036961 partial effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000010903 husk Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 150000004760 silicates Chemical class 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 2
- 229920003043 Cellulose fiber Polymers 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- YGZSVWMBUCGDCV-UHFFFAOYSA-N chloro(methyl)silane Chemical compound C[SiH2]Cl YGZSVWMBUCGDCV-UHFFFAOYSA-N 0.000 claims 1
- 238000007598 dipping method Methods 0.000 claims 1
- 150000001247 metal acetylides Chemical class 0.000 claims 1
- 150000004767 nitrides Chemical class 0.000 claims 1
- 150000003961 organosilicon compounds Chemical class 0.000 claims 1
- 239000010410 layer Substances 0.000 description 51
- 238000000576 coating method Methods 0.000 description 19
- 239000011248 coating agent Substances 0.000 description 16
- 239000000919 ceramic Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
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- 230000015572 biosynthetic process Effects 0.000 description 4
- XPBBUZJBQWWFFJ-UHFFFAOYSA-N fluorosilane Chemical compound [SiH3]F XPBBUZJBQWWFFJ-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000009736 wetting Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
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- 238000005299 abrasion Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000010433 feldspar Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 150000002736 metal compounds Chemical class 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
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- 239000005060 rubber Substances 0.000 description 3
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- 239000011701 zinc Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052572 stoneware Inorganic materials 0.000 description 2
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000002210 biocatalytic effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229920005557 bromobutyl Polymers 0.000 description 1
- 235000021329 brown rice Nutrition 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920005556 chlorobutyl Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
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- 238000001035 drying Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 229920005561 epichlorohydrin homopolymer Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
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- 239000004744 fabric Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 229920005560 fluorosilicone rubber Polymers 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 230000005661 hydrophobic surface Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000006855 networking Effects 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
- 238000002161 passivation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
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- 235000015096 spirit Nutrition 0.000 description 1
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- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
- C04B41/4933—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane containing halogens, i.e. organohalogen silanes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
Definitions
- the invention relates to a surface of ceramic material with hydrophobic or ultraphobic properties and a method for its production.
- DE69 508 369 describes a surface treatment in which a primer is integrated in the coating material. The reason for this is the better connection to available OH groups on the surface.
- DE19 938 551 describes a coating in which a metal oxide sol is applied and solidified in a first stage and the functional coating is then carried out in the form of an organosilane. Due to the availability of free OH groups Metal oxides in a porous layer should increase the durability.
- the present invention is therefore based on the object of creating surfaces which have the greatest possible mechanical and chemical resistance of the hydrophobic or ultraphobic or other desired properties and which ideally regenerate independently.
- this is achieved by a method according to claim 1.
- the generation of specially structured hydrophobic surfaces is avoided and, at the same time, the greatest possible stability of the surface properties is achieved.
- the self-cleaning effect can be increased, the chemical and mechanical resistance decreases due to the structured and thus artificially enlarged or rougher surface.
- the hydrophobic or ultraphobic outer layer is applied to the intermediate layer, which due to the solid chemical bond of the intermediate layer to the surface of the object and the outer layer on or in the intermediate layer has maximum chemical and mechanical resistance.
- the outer layer conveys in particular hydrophobic or ultraphobic, as well as self-cleaning and dirt-repellent properties. But the abrasion and scratch resistance of materials can also be increased by the intermediate layer. Also special chemical properties such as B. "Anti-Graphity" coating can be achieved through the outer layer.
- the intermediate layer can be used particularly advantageously in order to achieve antibacterial properties in the intermediate layer itself.
- Hg, Ag, Cu, Zn, Fe, Pb, Bi or photocatalytic TiO 2 preferably Ag, Cu or Zn, can be incorporated into the proposed intermediate layer, whereby antibacterial properties can be achieved.
- a method is proposed according to the invention which enables an optimal connection of coating materials by the maximum number of available OH groups on framework or network images and which enables the coating to penetrate into the surface produced by means of targeted capillary porosity.
- This thin intermediate layer is practically in the micrometer range, e.g. B. 0.01 - 50 ⁇ m, in particular 0.1, 5 ⁇ m.
- larger layer thicknesses are also conceivable, since this means that a larger amount of coating material can be deposited. Only the change in the surface characteristics can be negative.
- Soles or gels of the corresponding metals are suitable, which are applied in a comparable manner. It is also possible to apply the metals in the form of organometallic compounds. Depending on Other compounds or compositions can be considered for the material and manufacturing process.
- a heat treatment must be carried out at which a temperature is to be used which is sufficient to achieve maximum bond strength of the intermediate layer by melting or ceramic sintering. Depending on the nature of the ceramic material from which the object is made, this temperature is 500 to 1450 ° C, in particular 900 to 1300 ° C.
- the heat treatment creates an intermediate layer that is bound to the materials by melting or sintering processes with maximum strength on the one hand, and on the other hand the greatest possible number of free OH groups for the connection of materials that form the outer layer.
- the intermediate layer can advantageously only be so thick that the natural roughness of the surface to be coated is not reduced. In terms of durability, however, it is advantageous to strive to reduce the natural roughness.
- organometallic compounds for the production of an intermediate layer.
- Corresponding organometallic compounds are brought to the surface and the resulting metal compound is formed by thermally activated reaction or elimination of the organic constituents.
- This method is generally known to the person skilled in the art as precursor technology.
- precursor technology A decisive advantage is that the structure and also the porosity of the layer formed can be influenced in a targeted manner.
- the use of organometallic compounds allows the length or geometric arrangement of the Si-O chains or networks in the
- Another advantage of the method according to the invention is that, for example, when using organometallic compounds containing elastic components, the possibility is created to mechanically influence the resulting structure before the final heating. This can be done in that a spatial alignment of the molecules can be achieved by polishing the applied layer, whereby the resulting roughness can be influenced at least positively. This is also possible due to the type of order. So by mechanical application processes such. B. direct or indirect printing methods are given ways to exert mechanical influence. In addition, it is possible according to the invention to influence the spatial distribution of further components such as additional metal oxides or additives such as sintering aids or fluxes or inorganic biocides in the layer by means of surface properties of the organic components used.
- additional metal oxides or additives such as sintering aids or fluxes or inorganic biocides
- organometallic silicon compounds are that, for example, via silazanes, methychlorosilanes, natural starting materials such as rice husks or others Compounds an SiC layer came to be formed, which functions according to the invention as an intermediate layer.
- Layers according to the invention are particularly suitable for the process.
- a capillary porosity can be generated in the layer, which capillary forces the penetration of the outer coating into the surface thus produced.
- Fabrics are fibrous, since this promotes the formation of capillaries. Particularly advantageous are materials which, after the organic constituents have been burned out, leave compounds which have a high number of OH groups which are favorable for the attachment of the outer coating.
- Rice bowls are particularly suitable due to the formation of SiC in a reducing atmosphere and subsequent oxidation.
- Finely ground paper fibers are also well suited, as in many
- compositions which do not melt completely at the firing temperature used and which leave a capillary porosity can also be used to achieve a targeted improvement in capillarity even on naturally capillary-porous surfaces, such as engobed roof tiles. It is also possible by order appropriate connections on porous surfaces (unfired or burned objects, with or without glaze) to produce a targeted capillarity.
- the capillary-porous intermediate layer produced in the first stage of the process according to the invention provides the prerequisite for binding conventional organic coatings, such as organosilanes (silicanes, silanes or so-called hybrid materials), or coatings based on acrylic or polyurethane with maximum chemical and mechanical resistance.
- a thickness is preferred for the intermediate layer which ideally does not increase the natural surface roughness of the materials.
- the first stage of the method according to the invention offers an ideal prerequisite for direct chemical or thermal hydrophobization of the surface by replacing the OH groups with hydrophobic groups, e.g. B. methyl groups.
- a major advantage of the method according to the invention is further that a ceramic connection, i.e. a bond based on melting or sintering processes is proposed to the intermediate layer. This allows maximum strength to be achieved. In addition, in particular on glazed surfaces, if the softening temperature of the glasses is exceeded, the surface is smoothed by melting the intermediate layer.
- a decisive advantage of the method according to the invention is that an outer, functional coating with thermoplastic and / or permanently elastic properties is applied in connection with the capillary system thus produced. This ensures that the coating material is transported into the interior by capillary forces when heated. In the opposite direction, it is transported back to the surface after chemical or mechanical removal. This makes it possible to regenerate these surfaces and thus to achieve the longest possible durability of the hydrophobic or ultraphobic properties, since the limiting factor is no longer the stability of the connection of the functional group of, for example, organosilane compounds.
- elastomers which may be mentioned are: acrylate rubber, polyester-urethane rubber, brominated butyl rubber, polybutadiene, chlorinated butyl rubber, chlorinated polyethylene, epichlorohydrin (homopolymer), polychloroprene, sulfated polyethylene, ethylene-acrylate rubber, epichlorohydrin (copolymers), ethylene-propylene-terpene sulfur cross-linked, ethylene-propylene copolymer, peroxide cross-linked, polyether-urethane rubber, ethylene-vinyl acetate copolymer,
- Fluorororubber fluorosilicone rubber, hydrogenated nitrile rubber, butyl rubber, dimethylpolysiloxane, vinyl-containing, nitrile rubber, natural rubber (synthetic polyisoprene), thioplastics, polyfluorophosphazenes, polynorbomene, styrene-butadiene rubber, carboxy group-containing BR.
- thermoplastics examples include: styrene types such as SBS, SIS, SEBS, elastomer alloys such as EPDM / PP, NR / PP, EVA / PVDC, NDR / PP, polyurethanes, polyether esters and polyether amides.
- Another advantage of the method according to the invention is that e.g. biocidal, inorganic components such as Copper, zinc and / or their compounds can be integrated into the surface.
- the outer layer can advantageously be a biocidal substance, such as. B. Cu and / or ZN and / or their compounds.
- a thin layer of an at least divalent metal compound is applied to an article by deposition from the gas phase (SVD, PVD or similar processes) or by a direct or indirect printing process and the article is heated during or after the application.
- the heating serves to supply sufficient activation energy to enable the formation of the desired reaction products and the binding of these reaction products to the surface.
- the small layer thickness of the intermediate layer ideally does not increase the natural surface roughness, but significantly increases the strength of the bond. This represents a significant improvement over the prior art.
- maximum strength of the intermediate layer is brought about by chemical reactions, melting or ceramic sintering. Depending on the nature of the material and the type of connections applied, this temperature is 300 ° C - 1450 ° C, especially 500 ° C - 900 ° C.
- the heat treatment creates an intermediate layer which is bonded to the material or to itself with maximum strength and which has the greatest possible number of bonding points for connecting materials which form the outer layer.
- the industrial execution of the method according to the invention depends on the type of material to be coated.
- unglazed and glazed ceramic products such as facing bricks, clay roof tiles, wall or floor tiles, split tiles, facade tiles or sanitary ceramic products
- Glazed, multi-fired products are preferably sprayed or dipped before the last fire.
- a commercial, glazed stoneware tile was made with a
- fluorosilane Sivento Dynasilan
- sanitary silicone solution [Fa. Knauf sanitary silicone (permanently elastic, UV-resistant)] (mixing ratio 1: 1) coated.
- the fluorosilane was 2% dissolved in ethanol.
- the solution contained 5% HCl (20%) as a catalyst.
- the sanitary silicone was 4% dissolved in methanol and also contained 5% HCI. After a reaction time of 24 hours, this mixture was applied using a rubber roller and then fired at 900 ° C. in an electric furnace. To prevent evaporation and reduce the oxygen content, the tiles were covered up to 650 ° C. After the fire there was a slight iridescent effect.
- the wetting angle to water was less than 10 °.
- Such a pre-coated and a non-pre-coated tile were each mixed with a mixture of a fluorosilane (3MFC405) and Sanitary silicone coated and heated to 200 ° C.
- the chemical mechanical abrasion resistance was tested on these samples.
- the tiles were brushed without pressure using scouring powder (Erichson).
- the assessment criterion was the number of cycles until the wetting angle to water had decreased from originally 90 ° to less than 30 °. The number of these cycles was 200 for the reference samples without an intermediate layer. Values of 1000 were determined for the samples with an intermediate layer. The layer was removed after every 200 cycles, but regenerated automatically after every 20 minutes.
- a commercially available unglazed roof tile was sprayed with a mixture of engobe and finely ground, unpeeled brown rice (approx. 30 vol .-% additive) in a mortar and fired at 980 ° C in an electric oven and then with sanitary silicone [Fa. Knauf sanitary silicone (permanently elastic, UV-resistant)] (2% in white spirit) coated and heated to 250 ° C.
- sanitary silicone Fa. Knauf sanitary silicone (permanently elastic, UV-resistant)] (2% in white spirit
- An unfired, glazed test tile made of sanitary ceramic material was covered with a mixture of sanitary silicone [Fa. Knauf sanitary silicone (permanently elastic, UV-resistant)] and silica (10% in mineral spirits with 10% silica) are sprayed and dried.
- This tile was then provided with a further layer of sanitary silicone and feldspar (Saar feldspar) (10% in benzine with 10% feldspar) and fired at 1230 ° C. There was again a pronounced regenerability after removal of the layer.
- Example 4 A commercially available stoneware tile was coated with a mixture of sanitary silicone (as above) and approx. 5% by weight of finely ground piezoceramic material (lighter igniter) in a mortar and fired at 900 ° C. in an electric furnace. Then this tile was again coated with sanitary silicone (as above) and heated to 250 ° C. After cooling, water was sprayed onto the surface. No wetting angle could be determined because the water drops bounced off the surface.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01949285A EP1409435A1 (de) | 2000-04-14 | 2001-04-12 | Oberfläche von keramischem material mit hydrophoben oder ultraphoben eigenschaften und verfahren zu ihrer erzeugung |
AU2001270488A AU2001270488A1 (en) | 2000-04-14 | 2001-04-12 | Ceramic material surface with hydrophobic or ultraphobic properties and method for the production thereof |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000118671 DE10018671C2 (de) | 2000-04-14 | 2000-04-14 | Verfahren zur Erzeugung einer hydrophoben Oberfläche von Gegenständen aus silikatkeramischen Werkstoffen sowie Gegenstand mit einer hydrophoben Oberfläche |
DE10018671.8 | 2000-04-14 | ||
DE2001112170 DE10112170A1 (de) | 2001-03-12 | 2001-03-12 | Oberfläche von keramischem Material mit hydrophoben und ultraphoben Eigenschaften und Verfahren zu ihrer Erzeugung |
DE10112170.9 | 2001-03-12 | ||
DE10114498.9 | 2001-03-25 | ||
DE2001114498 DE10114498A1 (de) | 2001-03-25 | 2001-03-25 | Oberfläche von keramischen Material mit hydrophoben oder ultraphoben Eigenschaften sowie Verfahren zu ihrer Erzeugung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001079142A1 true WO2001079142A1 (de) | 2001-10-25 |
Family
ID=27213799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/004244 WO2001079142A1 (de) | 2000-04-14 | 2001-04-12 | Oberfläche von keramischem material mit hydrophoben oder ultraphoben eigenschaften und verfahren zu ihrer erzeugung |
Country Status (3)
Country | Link |
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EP (1) | EP1409435A1 (de) |
AU (1) | AU2001270488A1 (de) |
WO (1) | WO2001079142A1 (de) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US6845788B2 (en) | 2003-04-15 | 2005-01-25 | Entegris, Inc. | Fluid handling component with ultraphobic surfaces |
US6852390B2 (en) | 2003-04-15 | 2005-02-08 | Entegris, Inc. | Ultraphobic surface for high pressure liquids |
US6923216B2 (en) | 2003-04-15 | 2005-08-02 | Entegris, Inc. | Microfluidic device with ultraphobic surfaces |
US6938774B2 (en) | 2003-04-15 | 2005-09-06 | Entegris, Inc. | Tray carrier with ultraphobic surfaces |
DE102008047306A1 (de) | 2008-09-16 | 2010-04-15 | JODLAUK, Jörg | Zusammensetzung temper- und sinterbarer Überzugsmassen |
DE102009023497A1 (de) | 2009-06-02 | 2010-12-09 | Nanogate Ag | Glasurzusammensetzung mit Glasplättchen verschiedener Größe |
US9067821B2 (en) | 2008-10-07 | 2015-06-30 | Ross Technology Corporation | Highly durable superhydrophobic, oleophobic and anti-icing coatings and methods and compositions for their preparation |
US9074778B2 (en) | 2009-11-04 | 2015-07-07 | Ssw Holding Company, Inc. | Cooking appliance surfaces having spill containment pattern |
US9139744B2 (en) | 2011-12-15 | 2015-09-22 | Ross Technology Corporation | Composition and coating for hydrophobic performance |
US9179773B2 (en) | 2008-06-27 | 2015-11-10 | Ssw Holding Company, Inc. | Spill containing refrigerator shelf assembly |
US9388325B2 (en) | 2012-06-25 | 2016-07-12 | Ross Technology Corporation | Elastomeric coatings having hydrophobic and/or oleophobic properties |
US9546299B2 (en) | 2011-02-21 | 2017-01-17 | Ross Technology Corporation | Superhydrophobic and oleophobic coatings with low VOC binder systems |
US9914849B2 (en) | 2010-03-15 | 2018-03-13 | Ross Technology Corporation | Plunger and methods of producing hydrophobic surfaces |
US10317129B2 (en) | 2011-10-28 | 2019-06-11 | Schott Ag | Refrigerator shelf with overflow protection system including hydrophobic layer |
US11786036B2 (en) | 2008-06-27 | 2023-10-17 | Ssw Advanced Technologies, Llc | Spill containing refrigerator shelf assembly |
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- 2001-04-12 AU AU2001270488A patent/AU2001270488A1/en not_active Abandoned
- 2001-04-12 WO PCT/EP2001/004244 patent/WO2001079142A1/de active Application Filing
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Cited By (27)
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US6845788B2 (en) | 2003-04-15 | 2005-01-25 | Entegris, Inc. | Fluid handling component with ultraphobic surfaces |
US6852390B2 (en) | 2003-04-15 | 2005-02-08 | Entegris, Inc. | Ultraphobic surface for high pressure liquids |
US6923216B2 (en) | 2003-04-15 | 2005-08-02 | Entegris, Inc. | Microfluidic device with ultraphobic surfaces |
US6938774B2 (en) | 2003-04-15 | 2005-09-06 | Entegris, Inc. | Tray carrier with ultraphobic surfaces |
US9207012B2 (en) | 2008-06-27 | 2015-12-08 | Ssw Holding Company, Inc. | Spill containing refrigerator shelf assembly |
US11786036B2 (en) | 2008-06-27 | 2023-10-17 | Ssw Advanced Technologies, Llc | Spill containing refrigerator shelf assembly |
US11191358B2 (en) | 2008-06-27 | 2021-12-07 | Ssw Advanced Technologies, Llc | Spill containing refrigerator shelf assembly |
US10827837B2 (en) | 2008-06-27 | 2020-11-10 | Ssw Holding Company, Llc | Spill containing refrigerator shelf assembly |
US9179773B2 (en) | 2008-06-27 | 2015-11-10 | Ssw Holding Company, Inc. | Spill containing refrigerator shelf assembly |
US9532649B2 (en) | 2008-06-27 | 2017-01-03 | Ssw Holding Company, Inc. | Spill containing refrigerator shelf assembly |
US10130176B2 (en) | 2008-06-27 | 2018-11-20 | Ssw Holding Company, Llc | Spill containing refrigerator shelf assembly |
DE102008047306A1 (de) | 2008-09-16 | 2010-04-15 | JODLAUK, Jörg | Zusammensetzung temper- und sinterbarer Überzugsmassen |
US9067821B2 (en) | 2008-10-07 | 2015-06-30 | Ross Technology Corporation | Highly durable superhydrophobic, oleophobic and anti-icing coatings and methods and compositions for their preparation |
US9096786B2 (en) | 2008-10-07 | 2015-08-04 | Ross Technology Corporation | Spill resistant surfaces having hydrophobic and oleophobic borders |
US9243175B2 (en) | 2008-10-07 | 2016-01-26 | Ross Technology Corporation | Spill resistant surfaces having hydrophobic and oleophobic borders |
US9279073B2 (en) | 2008-10-07 | 2016-03-08 | Ross Technology Corporation | Methods of making highly durable superhydrophobic, oleophobic and anti-icing coatings |
US9926478B2 (en) | 2008-10-07 | 2018-03-27 | Ross Technology Corporation | Highly durable superhydrophobic, oleophobic and anti-icing coatings and methods and compositions for their preparation |
DE102009023497B4 (de) * | 2009-06-02 | 2012-04-19 | Nanogate Ag | Glasurzusammensetzung mit Glasplättchen verschiedener Größe, Verfahren zu deren Herstellung, Verfahren zur Herstellung von glasierter Sanitärkeramik sowie Verwendung der Glasurzusammensetzung |
DE102009023497A1 (de) | 2009-06-02 | 2010-12-09 | Nanogate Ag | Glasurzusammensetzung mit Glasplättchen verschiedener Größe |
US9074778B2 (en) | 2009-11-04 | 2015-07-07 | Ssw Holding Company, Inc. | Cooking appliance surfaces having spill containment pattern |
US9914849B2 (en) | 2010-03-15 | 2018-03-13 | Ross Technology Corporation | Plunger and methods of producing hydrophobic surfaces |
US9546299B2 (en) | 2011-02-21 | 2017-01-17 | Ross Technology Corporation | Superhydrophobic and oleophobic coatings with low VOC binder systems |
US10240049B2 (en) | 2011-02-21 | 2019-03-26 | Ross Technology Corporation | Superhydrophobic and oleophobic coatings with low VOC binder systems |
US10317129B2 (en) | 2011-10-28 | 2019-06-11 | Schott Ag | Refrigerator shelf with overflow protection system including hydrophobic layer |
US9528022B2 (en) | 2011-12-15 | 2016-12-27 | Ross Technology Corporation | Composition and coating for hydrophobic performance |
US9139744B2 (en) | 2011-12-15 | 2015-09-22 | Ross Technology Corporation | Composition and coating for hydrophobic performance |
US9388325B2 (en) | 2012-06-25 | 2016-07-12 | Ross Technology Corporation | Elastomeric coatings having hydrophobic and/or oleophobic properties |
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AU2001270488A1 (en) | 2001-10-30 |
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