EP1891176A1 - Revetement sol-gel stable aux alcalins - Google Patents

Revetement sol-gel stable aux alcalins

Info

Publication number
EP1891176A1
EP1891176A1 EP06742406A EP06742406A EP1891176A1 EP 1891176 A1 EP1891176 A1 EP 1891176A1 EP 06742406 A EP06742406 A EP 06742406A EP 06742406 A EP06742406 A EP 06742406A EP 1891176 A1 EP1891176 A1 EP 1891176A1
Authority
EP
European Patent Office
Prior art keywords
coating
alkali
alkoxides
coating according
stable
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Withdrawn
Application number
EP06742406A
Other languages
German (de)
English (en)
Inventor
Frank Gross
Gerd Schlick
Stefan Sepeur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nano X GmbH
Trane International Inc
Original Assignee
Nano X GmbH
American Standard International Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nano X GmbH, American Standard International Inc filed Critical Nano X GmbH
Publication of EP1891176A1 publication Critical patent/EP1891176A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen

Definitions

  • the invention relates to an alkali-stable sol-gel coating, to a process for producing an alkali-stable sol-gel coating and to the use thereof.
  • DE 40 25 215 C2 describes the preparation of alkali-stable abrasion-resistant coatings. It describes the preparation of coating materials via the reaction of silanes containing non-hydrolyzable primary, secondary and / or tertiary amino groups with organic epoxides.
  • the coating solutions must have at least one component with amino groups on the nonhydrolyzable part and a component with at least two epoxy groups.
  • the alkali resistance in the dishwasher test (stored for 2 h in 3% solution of Somat) showed no shift change.
  • siloxane KatZWasser Intermediate Silanol Cat
  • the siloxane bond hydrolyzes in the alkaline medium under the catalytic influence of hydroxide ions to silanols. As a result, the inorganic polymer network and thus the coating is destroyed.
  • the object of the invention is therefore to provide an alkali-stable sol-gel coating.
  • condensation catalyst based on a.) secondary or tertiary bases (for example amino, mercaptosilanes) and / or b.) Lewis acids as metal alkoxides such as aluminum alkoxides,
  • sol-gel systems based on silanes without organically functional side chain (MTEOS and higher-chain alkylsilanes to C30, TEOS) by condensation catalysts based on
  • secondary or tertiary bases e.g., amino, mercaptosilanes
  • tertiary bases e.g., amino, mercaptosilanes
  • Lewis acids such as aluminum alkoxides, zirconium alkoxides, titanium alkoxides have significantly improved alkali stability, i. that even with 200 to 300 dishwasher cycles no failure is given.
  • the required drying temperature of the coatings can be significantly reduced, for example transparent coatings can be produced which are used in drying Temperatures between 60 and 8O 0 C already good to very good adhesion and abrasion resistance on PVC, polycarbonate or other common plastics show. Depending on the application, the thickness of the applied layers is between 0.01 ⁇ m and 20 ⁇ m.
  • the curing catalysts can either be added directly at the beginning of the sol-gel synthesis, or they can be added subsequently to the final coating solution.
  • pot-life-resistant multicomponent coatings for example 2-component systems with binder and curing component.
  • pigments or fillers can also be dispersed as desired.
  • customary paint additives for example Byk additive for surface development / leveling or substrate wetting, pigment wetting
  • paint practice as required.
  • a development of the invention is that the coating with a solvent, in particular with water, to a solids content of more than 0.05 wt .-% and less than 20 wt .-% is diluted.
  • a part of the alkoxysilanes is fluorinated or contains a hydrophilic side chain, in particular polyether.
  • the metal alkoxides are preferably aluminum and zirconium alkoxides.
  • the bases are silanes with a secondary amino group.
  • the coating contains nanoparticles, in particular SiO 2 nanoparticles.
  • the silane is hydrolyzed with the addition of acid and immediately after the hydrolysis up to Ih hydrolysis time, the catalyst is added. It is envisaged that the coating is carried out by rolling, flooding, spray painting, electrostatic spraying, spin coating, dipping or wiping.
  • An embodiment of the invention is that the curing of the coating at room temperature (RT) to 1.200 0 C takes place.
  • the coating is applied as a primer or as a thin layer with up to 3 micron layer thickness on the object to be coated.
  • the coating according to the invention as a primer for hydrophobic coatings or photocatalytically active particles, Antikalk füren on chrome surfaces, stainless steel surfaces, PVC or polyester.
  • the coating according to the invention as a base system for Antif ⁇ ngerprint-, photocatalytic, anti-scale coatings, matting agents, color pigments, leveling agents, for the impregnation of textiles, leather, paper or as a binder or additive for paint systems or polymers within the scope of the invention.
  • the invention also includes the use of the coating according to the invention on household utensils, household appliances, kitchens and sanitary equipment, textiles, in particular pots, pans, housings of all kinds, fittings, covers, moldings, towel holders, paper dispensers, hand dryers, soap dispensers, shower heads, mirror frames, bathtubs. and washbasin closures, shower rods, shower panels, bathroom furniture, slats, PVC profiles (window frames, doors, conservatories), facade elements, shutter boxes, blinds, textiles, in particular technical fabrics, such as awnings, tent roofs and tarpaulins or (clothing) fabrics.
  • the invention will be explained below with reference to exemplary embodiments.
  • Primer 20.8 g of TEOS are stirred with 14.4 g of 0.1% H 2 SO 4 for 1.5 h (single-phase). Then is diluted with butyl glycol to 1% solids and treated with 1.2 g of N-methylaminopropyltrimethoxysilane.
  • the primer On the cleaned chrome surface, the primer is sprayed on first. After 5 minutes (flash off), the functional layer is sprayed on. It is cured at 80 C for 20 minutes.
  • the layer shows a clear beading behavior and a contact angle with water of 110 °.
  • Kaikabgraphy is greatly facilitated by the coating.
  • the coating also shows after two hours of storage in boiling dishwasher (10% Alio solution, pH 11.5) nor a contact angle greater than 100 ° and low adhesion to limescale.
  • Primer 20.8 g of TEOS are stirred with 7.2 g of 1% H 2 SO 4 for Ih. Then it is diluted with demi water to 1% solids and treated with 1.4 g of 3-aminopropyltrimethoxysilane.
  • the primer is sprayed on first. After 5 minutes (flash off), the functional layer is sprayed on. It is cured for 180 minutes at RT. Results: Compared to water, the layer shows a clear beading behavior and a contact angle with water of 105 °. Kaikabgraphy is greatly facilitated by the coating. Even after one hour of immersion in boiling dishwashing liquor (10% strength Alio solution, pH 11.5), the coating still shows a contact angle greater than 100 ° and low adhesion to limescale.
  • the coated stainless steel samples show a clear beading behavior compared to water and a contact angle against water of more than 90 °.
  • the coated samples show Antifmge ⁇ rinteigenschaften, ie applied fingerprints leave even after several hours no blue tarnishing traces and are therefore hardly noticeable on the surface.
  • the fingerprints can be easily removed with a dry paper or cotton cloth. After boiling in tap water for 8 hours, no change in layer (turbidity, peeling, ...) can be detected. Limestone residues cooked on the surface can easily be removed with an acid surfactant cleaner.
  • the samples were boiled for 8 h in dishwasher lye (10% Ali solution, pH 11.5) for the rapid test.
  • Example 4 the coated samples were cleaned in a household dishwasher under standard conditions over a period of 300 program cycles. After none of the two test methods, a detachment or attack of the coating can be determined. The above-mentioned anti-fingerprint effect also remains.
  • Example 4
  • the solution is spray-coated onto PVC plan substrates and to polyester-topcoated metal panels, allowed to flash for 10 minutes and then dried for one hour at 7O 0 C in a convection oven.
  • the coatings in each case show good adhesion and water storage stability (24-hour storage in demiwater at RT with subsequent adhesion test without complaint). In the QUV-A test, no yellowing or delamination of the coating can be detected after 500 hours.
  • the coating exhibits good UV weatherability and can be used e.g. be used as a barrier layer system for the application of a photocatalytically active titanium oxide self-cleaning layer. Will be in o.g. Example 4 instead of N-butylaminolpropyltrimethoxysilane a propyltrimethoxysilane used, so at least curing temperatures of 130 ° C are necessary to achieve similar good mechanical and chemical resistance on the plastic substrates.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

La présente invention concerne des revêtements sol-gel stables aux alcalins, un procédé pour les préparer et leur utilisation. Pour produire les revêtements sol-gel stables aux alcalins, l'invention a pour objet un revêtement qui comprend: un silane hydrolysable des composés TEOS, MTEOS ou alkylsilanes à longue chaîne (silanes di, tri- et tétrafonctionnels), mais de préférence TEOS, MTEOS ou des mélanges de ceux-ci; un catalyseur de condensation à base de a.) bases secondaires ou tertiaires (par ex. amino, mercaptosilanes) et/ou b.) acides de Lewis en tant qu'alcoxydes métalliques tels que les alcoxydes d'aluminium, les alcoxydes de zirconium, les alcoxydes de titane, le rapport (en % en poids) du silane hydrolysable par rapport au catalyseur de condensation, valant entre 99:1 et 70:30.
EP06742406A 2005-06-15 2006-06-12 Revetement sol-gel stable aux alcalins Withdrawn EP1891176A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005027789A DE102005027789A1 (de) 2005-06-15 2005-06-15 Alkalistabile Sol-Gel-Beschichtung
PCT/DE2006/001002 WO2006133677A1 (fr) 2005-06-15 2006-06-12 Revetement sol-gel stable aux alcalins

Publications (1)

Publication Number Publication Date
EP1891176A1 true EP1891176A1 (fr) 2008-02-27

Family

ID=36954911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06742406A Withdrawn EP1891176A1 (fr) 2005-06-15 2006-06-12 Revetement sol-gel stable aux alcalins

Country Status (8)

Country Link
US (1) US20090238986A1 (fr)
EP (1) EP1891176A1 (fr)
JP (1) JP2008543994A (fr)
KR (1) KR20080022577A (fr)
CN (1) CN101218317A (fr)
CA (1) CA2611868A1 (fr)
DE (1) DE102005027789A1 (fr)
WO (1) WO2006133677A1 (fr)

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DE102007016946A1 (de) * 2007-04-05 2008-10-09 Nano-X Gmbh Beschichtungsmaterial mit einer katalytischen Aktivität und Verwendung des Beschichtungsmaterials
FI20070497A0 (fi) * 2007-06-20 2007-06-20 Valtion Teknillinen Pinnoite ja menetelmä pinnoitteen valmistamiseksi
DE102007041856A1 (de) 2007-09-03 2009-03-05 Wacker Chemie Ag Vernetzbare Massen auf der Basis von Organosiliciumverbindungen
WO2009059798A2 (fr) * 2007-11-08 2009-05-14 Corus Uk Limited Procédé de fabrication d'un revêtement sur un substrat métallique et revêtement obtenu par ce procédé
US8709545B2 (en) * 2009-01-30 2014-04-29 The Boeing Company Hybrid coatings and associated methods of application
DE102009008144A1 (de) 2009-02-09 2010-08-19 Nano-X Gmbh Verfahren zur Herstellung von Alkali- und Erdalkalilegierungen und Verwendung der Alkali- und Erdalkalilegierungen
CN101775124B (zh) * 2010-02-11 2012-07-25 东华大学 耐磨抗刮稳定透明聚酯涂料基体的制备方法
DE102011077021A1 (de) * 2011-06-07 2012-12-13 Schaeffler Technologies AG & Co. KG Beschichtungsverfahren für ein Kolben- oder Lager-Bauteil
KR101710250B1 (ko) * 2012-07-05 2017-02-24 닛뽕소다 가부시키가이샤 유기 규소 화합물, 그것을 사용한 박막 형성용 조성물 및 유기 박막
JP6625987B2 (ja) 2013-09-16 2019-12-25 ハネウェル・インターナショナル・インコーポレーテッドＨｏｎｅｙｗｅｌｌ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｉｎｃ． ポリフッ素含有シロキサン被覆
JP5724021B1 (ja) * 2014-06-25 2015-05-27 アイシン軽金属株式会社 高耐アルカリ性アルミニウム部材及びその製造方法
KR102602313B1 (ko) * 2015-04-30 2023-11-14 린텍 가부시키가이샤 방오성 조성물, 방오성 시트, 및 방오성 시트의 제조 방법
ES2597749B1 (es) * 2015-07-20 2017-12-26 Bsh Electrodomésticos España, S.A. Componente de aparato doméstico que comprende un elemento base con un recubrimiento funcional
US10128388B2 (en) * 2015-11-17 2018-11-13 King Fahd University Of Petroleum And Minerals Methods for treating a polycarbonate glass surface and forming directed hierarchical nanopatterning and increasing hydrophobicity
JP6662001B2 (ja) * 2015-11-27 2020-03-11 住友金属鉱山株式会社 非水系電解質二次電池用正極活物質とその製造方法、被覆液の製造方法
KR101640727B1 (ko) * 2016-02-04 2016-07-18 세진산업 (주) 내화학성 및 방수성이 우수한 맥반석 판재의 제조방법
FR3061724B1 (fr) * 2017-01-06 2021-07-16 Commissariat Energie Atomique Procede de revetement de materiaux textiles
ES2682687B1 (es) * 2017-03-21 2019-08-12 Bsh Electrodomesticos Espana Sa Método para recubrir un elemento base para un componente de aparato doméstico, y componente de aparato doméstico
CN110054986A (zh) * 2018-01-19 2019-07-26 四川铁创科技有限公司 一种高铁隧道排水暗管用防钙盐沉积涂料及其制备方法
US20220118476A1 (en) * 2019-02-13 2022-04-21 Chemetall Gmbh Improved method for applying silane-based coatings on solid surfaces, in particular on metal surfaces
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Also Published As

Publication number Publication date
CN101218317A (zh) 2008-07-09
JP2008543994A (ja) 2008-12-04
DE102005027789A1 (de) 2006-12-21
KR20080022577A (ko) 2008-03-11
WO2006133677A1 (fr) 2006-12-21
US20090238986A1 (en) 2009-09-24
CA2611868A1 (fr) 2006-12-21

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