WO2012038302A1 - Produits de revêtement pour réaliser des revêtements d'infrastructures imperméables - Google Patents

Produits de revêtement pour réaliser des revêtements d'infrastructures imperméables Download PDF

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Publication number
WO2012038302A1
WO2012038302A1 PCT/EP2011/065830 EP2011065830W WO2012038302A1 WO 2012038302 A1 WO2012038302 A1 WO 2012038302A1 EP 2011065830 W EP2011065830 W EP 2011065830W WO 2012038302 A1 WO2012038302 A1 WO 2012038302A1
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Prior art keywords
coating compositions
water
fillers
infrastructure
coatings
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PCT/EP2011/065830
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German (de)
English (en)
Inventor
Hardy Herold
Harold Schoonbrood
Stephen John Aggenbach
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Wacker Chemie Ag
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Publication date
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Priority to AU2011304488A priority Critical patent/AU2011304488B2/en
Priority to BR112013006884A priority patent/BR112013006884A2/pt
Publication of WO2012038302A1 publication Critical patent/WO2012038302A1/fr

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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
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—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 inorganic materials
    • C04B41/5076—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 inorganic materials with masses bonded by inorganic cements
    • C04B41/5079—Portland cements
    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
    • C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C09D5/028—Pigments; Filters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials

Definitions

  • the invention relates to the use of coating compositions for the production of water-bearing infrastructure coatings and to processes for the production of water-bearing infrastructure structures,
  • Water-bearing infrastructure projects are, for example, canals or drinking water systems. Such systems must be watertight and resistant.
  • 2009/132967 recommends the use of polymer-modified, cementitious sealing slurries for the aftertreatment of concrete bodies.
  • the thus coated concrete body serve as a substrate for laying tiles or slabs.
  • JP-A 8-120192 recommends the use of cementitious coating compositions which have a high cement content relative to polymers for the production of flat roofs or verandas.
  • CN-C 100364916 deals with water-resistant, heat-insulating coatings for buildings and recommends the use of coating agents based on cementitious mortars, which are coated with small amounts of polymers.
  • US 2006/0054059 describes flexible coatings based on hydraulically setting binders and polymers as underlay for ceramic tiles.
  • CA 1046361 recommends mats containing a layer based on cement and polymers for surface coating of buildings.
  • JP-A 4-300231 recommends the use of fast-curing cementitious systems for the production of waterproof coatings, which contain 1 to 100 parts by weight of polymers, based on 100 parts by weight of cement.
  • WO-A 2009/064369 recommends measures for the repair concrete, where cementitious systems are used.
  • the task was to provide water-bearing infrastructure buildings, which should be superior to the previously known water-leading infrastructure in terms of their waterproofness as well as their mechanical or crack-bridging properties. Cracks can occur in infrastructure constructions, such as canals, as a result of earthquakes, shrinkage processes, hygrothermal changes in length, aging processes or other mechanical loads. Coatings should now be found which bridge such cracks which arise over time within the infrastructure structures and in this way prevent leakage of water from the infrastructure structures carrying water. Furthermore, the water-bearing infrastructure buildings should withstand mechanical stresses, such as when animals fall into channels, or when objects, such as trees or branches, fall into channels.
  • An object of the invention is the use of coating compositions for the production of water-carrying infrastructure coatings, characterized in that
  • the coating compositions comprise one or more mineral binders, one or more polymers based on one or more ethylenically unsaturated monomers, one or more fillers and optionally one or more additives,
  • the inorganic coatings are preferably coatings for infrastructure constructions such as channels, ponds, swimming pools, gutters or drinking water systems, more preferably channels.
  • Polymers used are polymers of one or more ethylenically unsaturated monomers.
  • Preferred ethylenically unsaturated monomers are selected from the group comprising vinyl esters, (meth) acrylic esters, vinylaromatics, olefins, 1,3-dienes and vinyl halides and optionally further monomers copolymerizable therewith.
  • Suitable vinyl esters are, for example, those of carboxylic acids having 1 to 15 carbon atoms. Preference is given to vinyl acetate, vinyl propionate, vinyl butyrate, vinyl 2-ethylhexanoate, vinyl laurate, 1-methylvinyl acetate, vinyl pivalate and vinyl esters of ⁇ -branched monocarboxylic acids having 9 to 11 C atoms, for example VeoVa9 R or VeoVal0 R (trade name of Re-Solution). Particularly preferred is vinyl acetate.
  • Suitable monomers from the group of acrylic acid esters or methacrylic esters are, for example, esters of unbranched or branched alcohols having 1 to 15 C atoms.
  • Preferred methacrylic esters or acrylic esters are methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, n-butyl acrylate, n-butyl methacrylate, t-butyl acrylate, t-butyl methacrylate, 2-ethylhexyl acrylate.
  • Particularly preferred are methyl acrylate, methyl methacrylate, n-butyl acrylate, t-butyl acrylate and 2-ethylhexyl acrylate.
  • Preferred vinyl aromatic compounds are styrene, methylstyrene and vinyltoluene.
  • Preferred vinyl halide is vinyl chloride.
  • the preferred olefins are ethylene, propylene and the preferred dienes are 1,3-butadiene and isoprene.
  • auxiliary monomers can be copolymerized. be siert.
  • auxiliary monomers are ethylenically unsaturated mono- and dicarboxylic acids, preferably acrylic acid, methacrylic acid, fumaric acid and maleic acid; ethylenically unsaturated carboxylic acid amides and nitriles, preferably acrylamide and acrylonitrile, mono- and diesters of fumaric acid and maleic acid, such as diethyl and diisopropyl esters and maleic anhydride; ethylenically unsaturated sulfonic acids or salts thereof, preferably vinylsulfonic acid, 2-acrylamido-2-methyl-propanesulfonic acid.
  • precrosslinking comonomers such as multiply ethylenically unsaturated comonomers, for example diallyl phthalate, divinyl adipate, dialyl maleate, allyl methacrylate or triallyl cyanurate, or post-crosslinking comonomers, for example acrylamidoglycolic acid (AGA), methyl acrylamidoglycolic acid methyl ester (MAGME), N-methylolacrylamide (NMA), N-methylolmethacrylamide, N-methylolallyl carbamate, alkyl ethers such as the isobutoxy ether or esters of N-methylolacrylamide, of N-methylolmethacrylamide and of N-methylolallylcarbamate.
  • AGA acrylamidoglycolic acid
  • MAGME methyl acrylamidoglycolic acid methyl ester
  • NMA N-methylolacrylamide
  • NMA N-methylolmethacrylamide
  • epoxy-functional comonomers such as glycidyl methacrylate and glycidyl acrylate.
  • silicon-functional Comono ⁇ mers such as acryloxypropyltri (alkoxy) - and methacryloxypropyl tri (alkoxy) silanes, vinyltrialkoxysilanes and Vinylmethyldial- koxysilane, wherein for example, ethoxy and Ethoxypropylenglykolether- este may be present as alkoxy groups.
  • methacrylic acid and acrylic acid hydroxyalkyl esters such as hydroxyethyl, hydroxypropyl or hydroxybutyl acrylate or methacrylate
  • compounds such as diacetone acrylamide and acetylacetoxyethyl acrylate or methacrylate.
  • One or more polymers are preferably selected from the group comprising vinyl ester homopolymers,
  • Vinyl ester copolymers comprising one or more monomer units from the group consisting of vinyl esters, olefins, vinylaromatics, vinyl halides, acrylates, methacrylic acid esters, fumaric and / or maleic acid mono- or diesters (meth) acrylic acid ester homopolymers, (Meth) acrylic acid ester copolymers containing one or more monomer units from the group comprising methacrylic esters, acrylic esters, olefins, vinylaromatics, vinyl halides, fumaric and / or maleic mono- or diesters; Homo- or copolymers of dienes such as butadiene or isoprene, and of olefins such as ethene or propene, wherein the dienes may be copolymerized, for example, with styrene, (meth) acrylic esters or the esters of fumaric or maleic acid; Homopolymers or copolymers
  • copolymers of one or more vinyl esters with 1 to 50 wt .-% of ethylene are particularly preferred.
  • VeoValO, VeoVall Copolymers of one or more vinyl esters, 1 to 50% by weight of ethylene and preferably 1 to 60% by weight of (meth) acrylic acid esters of unbranched or branched alcohols having 1 to 15 carbon atoms, in particular n-butyl acrylate or 2- ethylhexyl acrylate; and copolymers having 30 to 75 wt .-% vinyl acetate, 1 to 30 wt .-% vinyl laurate or vinyl ester of an alpha-branched carboxylic acid having 9 to 11 carbon atoms, and 1 to 30 wt .-% of (meth) acrylic acid esters of unbranched or branched alcohols having 1 to 15 carbon atoms, in particular n-butyl acrylate or 2-ethylhexyl acrylate, which still contain 1 to 40 wt .-% of ethylene copolymers containing one or more vinyl esters, 1 to 50 wt .-% of
  • acrylic acid ester polymers such as copolymers of n-butyl acrylate or 2-ethylhexyl acrylate or copolymers of methyl methacrylate with n-butyl acrylate and / or 2-ethylhexyl acrylate / styrene acrylic acid ester copolymers with one or more monomers from the Group of methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate; Vinyl acetate-acrylic acid ester copolymers with one or more monomers from the group of methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate ; 2-ethylhexyl acrylate and optionally ethylene; Styrene-1,3-butadiene copolymers; wherein the polymers can still contain
  • Examples of particularly preferred comonomers for vinyl chloride copolymers are ⁇ -olefins, such as ethylene or propylene, and / or vinyl esters, such as vinyl acetate, and / or acrylic esters or methacrylic esters of alcohols having from 1 to 15 carbon atoms, such as methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, n-butyl acrylate, t-butyl acrylate, n-butyl methacrylate, t-butyl methacrylate, 2-ethylhexyl acrylate and / or fumaric and / or maleic acid mono- or diesters such as the dimethyl, methyl-t-butyl, di-n-butyl, di-t-butyl and diethyl esters of maleic acid or. Fumaric acid.
  • copolymers with vinyl acetate and 5 to 50% by weight of ethylene or copolymers with vinyl acetate, 1 to 50% by weight of ethylene and 1 to 50% by weight of a vinyl ester of ⁇ -branched monocarboxylic acids having 9 to 11 C atoms; or copolymers having from 30 to 75% by weight of vinyl acetate, from 1 to 30% by weight of vinyl laurate or vinyl ester of an alpha-branched carboxylic acid having from 9 to 11 carbon atoms, and from 1 to 30% by weight of (meth) acrylic acid esters of unbranched or branched alcohols having 1 to 15 carbon atoms, which still contain 1 to 40 wt .-% ethylene; or copolymers with Vinyl acetate, 5 to 50% by weight of ethylene and 1 to 60% by weight of vinyl chloride.
  • the monomer selection or the selection of the weight proportions of the comonomers is carried out so that a glass transition temperature Tg of -50 ° C to + 30 ° C, preferably -40 ° C to + 10 ° C, particularly preferably -30 ° C to 0 ° C. results.
  • the glass transition temperature Tg of the polymers can be determined in a known manner by means of differential scanning calorimetry (DSC).
  • Tgn the glass transition temperature in Kelvin of the homopolymer of the monomer n. Tg values for homopolymers are listed in Polymer Handbook 2nd Edition, J. Wiley & Sons, New York (1975).
  • the polymers are generally prepared in aqueous medium and preferably by the emulsion or suspension polymerization process - as described, for example, in DE-A 102008043988.
  • the polymers are obtained in the form of aqueous dispersions.
  • the customary protective colloids and / or emulsifiers can be used, as described in DE-A 102008043988.
  • the protective colloids may be anionic or, preferably, cationic or nonionic. Combinations of cationic and nonionic protective colloids are also preferred.
  • Preferred nonionic protective colloids are polyvinyl alcohols.
  • Preferred cationic protective colloids are polymers which carry one or more cationic charges, as described, for example, in EW Flick, Water Soluble Resins - Industrial Guide, Noyes Publications, Park Ridge, NJ, 1991.
  • Partially hydrolyzed or fully hydrolysed polyvinyl alcohols having a degree of hydrolysis of 80 to 100 mol%, in particular partially hydrolyzed polyvinyl alcohols having a degree of hydrolysis of 80 to 94 mol% and a Höpplerviskosi -, in 4% aqueous solution of 1 to 30 mPas are preferred as protective colloids (Method according to Höppler at 20 ° C, DIN 53015).
  • the said protective colloids are obtainable by methods known to the person skilled in the art and are generally added in an amount of in total from 1 to 20% by weight, based on the total weight of the monomers, in the polymerization.
  • the polymers in the form of aqueous dispersions can, as described in DE-A 102008043988, be converted into corresponding water-redispersible powders.
  • a drying aid in a total amount of 3 to 30% by weight, preferably 5 to 20% by weight, based on the polymeric constituents of the dispersion, is used.
  • the aforementioned polyvinyl alcohols are preferred.
  • Suitable mineral binders are, for example, cement, in particular Portland cement, aluminate cement, in particular calcium sulfo-aluminate cement, trass cement, metallurgical cement, magnesia cement, phosphate cement or blastfurnace cement, as well as mixed cements, filling cements, fly ash, microsilica, metallurgical sand, hydrated lime, hydrated lime, calcium oxide (undelaid Lime) and gypsum.
  • cement in particular Portland cement, aluminate cement, in particular calcium sulfo-aluminate cement, trass cement, metallurgical cement, magnesia cement, phosphate cement or blastfurnace cement, as well as mixed cements, filling cements, fly ash, microsilica, metallurgical sand, hydrated lime, hydrated lime, calcium oxide (undelaid Lime) and gypsum.
  • the mixtures preferably contain from 20 to 100% by weight, more preferably from 20 to 80% by weight and most preferably from 33 to 66% by weight of the aluminate cement, based on the mineral binders.
  • suitable fillers are quartz sand, quartz powder, limestone flour, calcium carbonate, dolomite, clay, chalk, hydrated lime, talc or mica, rubber granules or hard fillers, such as aluminum silicates, corundum, basalt, carbides, such as silicon carbide or titanium carbide, or pozzolanically reactive Fillers, such as fly ash, metakaolin, microsilica.
  • quartz sand, quartz powder, limestone powder, calcium carbonate, calcium magnesium carbonate (dolomite), chalk or hydrated lime hydrate are used as fillers.
  • the fillers do not comprise gravel. Gravel generally has a diameter of 2 mm, in particular 4 mm.
  • Preferred blends comprise one or more siliceous fillers, such as sand, and one or more carbonaceous fillers selected from the group comprising calcium carbonate, chalk, dolomite and limestone.
  • Preferred blends contain one or more siliceous fillers and one or more carbonaceous fillers in the ratio of 1 to 1 to 4 to 1.
  • the fillers preferably have diameters of from 0.01 to 3 mm, more preferably from 0.02 to 2 mm, and most preferably from 0.1 to 1 mm. Preferably, 60 to 100% by weight of the fillers have one
  • the water-conducting structural coatings obtainable according to the invention undergo less shrinkage in the course of their production, which counteracts the formation of cracks within the coatings according to the invention and promotes the crack-bridging properties of the infrastructure coatings.
  • Typical formulations for the coating compositions preferably contain from 10 to 60% by weight, more preferably from 20 to 55% by weight, and most preferably from 25 to 50% by weight of polymers; preferably from 2 to 40% by weight, particularly preferably from 5 to 30% by weight, most preferably from 5 to 20% by weight, of mineral binders DEMITTEL; preferably from 10 to 70% by weight and more preferably from 20 to 60% by weight of fillers; wherein the data in wt .-% based on the dry weight of the coating compositions and total add up to 100 wt .-%.
  • the coating compositions preferably contain from 30 to 95% by weight, more preferably from 40 to 90% by weight, and most preferably from 50 to 88% by weight of polymers, based on the dry weight of the polymers and the mineral binders.
  • the coating compositions are therefore preferably dry blends.
  • the coating agents are generally added to water immediately prior to their application.
  • Aqueous coating compositions preferably contain from 15 to 40% by weight and more preferably from 20 to 40% by weight of water, based on the dry weight of the coating compositions.
  • the performance properties of the coating compositions can be improved by additives or additives.
  • Suitable additives are, for example, highly disperse silicas, also known by the abbreviation HDK, such as, for example, fumed silica or precipitated silica.
  • Highly dispersed silicas are preferably present in the coating compositions at from 0.1 to 3 and more preferably from 0.1 to 1% by weight, based on the dry weight of the particular coating composition.
  • fumed silica leads to infrastructure coatings that are more impervious to the ingress of water.
  • the highly dispersed silicic acids also produce processing advantages, since corresponding aqueous coating compositions are less tacky and dry out more quickly in the course of setting of the mineral binders.
  • a preferred additive are also phyllosilicates. Coating silicates containing coating silicates result in infrastructure coatings having a higher water-tightness. Phyllosilicates are preferably 0 to 3% by weight, -% and particularly preferably from 0.1 to 2% by weight, based on the dry weight of the coating compositions.
  • Preferred additives are also fibers.
  • suitable fibers are kevlar, viscose fibers, polyamide fibers, polyester fibers, polyacrylonitrile fibers, dralon fibers, polyethylene fibers, polypropylene fibers, polyvinyl alcohol fibers, aramid fibers or carbon fibers.
  • Fibers are preferably contained at 0 to 3 wt .-% and particularly preferably at 0.1 to 2 wt .-%, based on the dry weight of the coating compositions. The use of fibers leads to infrastructure coatings with more crack-bridging properties,
  • Typical additives for coating compositions are thickening agents, for example polysaccharides such as cellulose ethers and modified cellulose ethers, starch ethers, guar gum, xanthan gum, polycarboxylic acids such as polyacrylic acid and their partial esters, and also polyvinyl alcohols which may optionally be acetalated or hydrophobically modified, casein and associative acting thickener.
  • thickening agents for example polysaccharides such as cellulose ethers and modified cellulose ethers, starch ethers, guar gum, xanthan gum, polycarboxylic acids such as polyacrylic acid and their partial esters, and also polyvinyl alcohols which may optionally be acetalated or hydrophobically modified, casein and associative acting thickener.
  • Typical additives are also retarders, such as hydroxycarboxylic acids, or dicarboxylic acids or their salts, saccharides, oxalic acid, succinic acid, tartaric acid, gluconic acid, citric acid, sucrose, glucose, fructose, sorbitol, pentaerythritol.
  • Common additives are also Vernetz such as metal or semi-metal oxides, in particular boric acid or polyborates, or dialdehydes, such as glutaric dialdehyde; customary additives are setting accelerators, ⁇ example, alkali metal or alkaline earth metal salts of inorganic or organic acids.
  • Further additives are, for example, pigments, in particular inorganic pigments, such as titanium dioxide.
  • the proportion of additives in the coating compositions is altogether 0 to 20% by weight, preferably 0.1 to 15% by weight and particularly preferably 0.1 to 10% by weight, in each case based on the dry weight of the coating agent.
  • Coating agents are obtainable by mixing and homogenizing the individual constituents of the formulation in conventional powder mixing devices, for example by means of mortar, concrete mixers or plastering machines or stirrers.
  • the individual ingredients are generally used in dry form during mixing.
  • the polymers can be used in the form of aqueous dispersions or preferably in the form of water-redispersible powders.
  • the coating compositions can be provided, for example, in the form of one-component systems or two-component systems.
  • One-component systems contain all constituents of the coating compositions.
  • One-component systems are generally dry formulations, one-component systems are preferably prepared by premixing mineral binders, fillers, polymers, optionally additives and optionally additives.
  • the water can be added at any later time, generally shortly before application of the coating compositions.
  • Two-component systems comprise a first component and a second component.
  • the first component contains all constituents of the coating agent except for polymers.
  • the first component is generally a dry formulation.
  • the second component contains the polymers, preferably in the form of aqueous dispersions.
  • the first grain component and the second component mixed, if appropriate with the addition of water or with subsequent addition of water.
  • Another object of the invention are methods for the production of water-carrying infrastructure buildings by application of one or more coating compositions on a substrate, characterized in that
  • the coating compositions comprise one or more mineral binders, one or more polymers based on one or more ethylenically unsaturated monomers, one or more fillers and optionally one or more additives,
  • the substrates may be organic or inorganic, natural or artificial.
  • natural substrates are soil, rock, rocks or boulders.
  • artificial substrates are mainly substrates from the construction sector, such as substrates based on compositions containing mineral binders, in particular concrete, but also wood, plastics, in particular Polyurethananschaumplat- th, or metals, especially aluminum. Substrates from the construction sector are preferred.
  • the aqueous coating compositions can be applied by manual or mechanical methods. In manual processes, the aqueous coating compositions with
  • the aqueous coating compositions are applied to the substrate by means of spraying machines, plastering machines or robots. Several layers of coating agents can be applied on top of each other. Preferably, only one layer of the coating agent is applied to a substrate. Following the commission of Stratification agents on the substrates, the surface of the job can be smoothed, for example, using smoothing disks or wing blades.
  • the coating compositions are usually applied at ambient temperatures, ie generally at temperatures of 0 to 50 ° C, in particular from 5 to 35 ° C.
  • Suitable primers are, for example, aqueous dispersions of the abovementioned polymers, preferably having solids contents of from 10 to 50%.
  • the coating compositions are applied to a substrate in a layer thickness of preferably 1 to 10 mm, more preferably 2 to 5 mm and most preferably 2 to 3 mm.
  • further coatings can be applied to the infrastructure coatings, such as, for example, paints, in particular based on titanium dioxide pigments.
  • the coatings according to the invention form the uppermost or final layer of the water-bearing infrastructure structures.
  • the coatings produced according to the invention are distinguished by advantageous performance properties and have, for example, excellent mechanical properties and water resistance.
  • the use of coating compositions according to the invention leads to coatings which exhibit improved elongation at break compared to conventional mineral coatings and are thus more flexible, which leads to improved crack bridging, so that cracks arising in subsoil are sealed and correspondingly coated water-carrying infrastructure constructions do not lose water.
  • the coatings according to the invention also adhere very well to a wide variety of substrates. Furthermore, the coatings are starting from the coating agents in a time-efficient manner by simple and few steps using common construction site equipment accessible.
  • the coating compositions according to the invention dry out quickly, even if the coating compositions are applied in larger application thicknesses.
  • the process according to the invention gives coatings which are particularly suitable for the provision of water-bearing infrastructure layers or infrastructure constructions.
  • Example 1 (Example 1):
  • the individual constituents of the formulation given below were added to a Hobart mixer (commercial laboratory mixer) in the following order in the following order: first cement, then the fillers, the dispersion powder and finally the other constituents. The mixture was then homogeneously mixed for 15 minutes at level 1. From the dry mixture thus obtained, the aqueous coating composition was prepared in analogy to EN 196-1 with the amount of water given below.
  • the aqueous coating was smoothed on Teflon formwork (base area: 30x15 cm) with a Traufei. After 24 hours storage under normal conditions according to DIN50014, the films were cured and after removal of the Teflon formwork for 7 days under normal conditions (23 ° C / 50% relative humidity) stored.
  • Amount of water 35.2 g of water per 100 g of the dry mixture.
  • Example 2 (Example 2):
  • Example 2 Analogously to Example 1, with the difference that instead of the dispersion powder Vinnapas ® 5044 N, the dispersion powder Vinnapas ® LL 4040 N (vinyl acetate-ethylene copolymer, stabilized with polyvinyl alcohol and a cationic protective colloid), and in place of 35.2 g of water per 100 g of the dry mixture 34.5 g of water per 100 g of the dry mixture were used.
  • Example 3 (Example 3):
  • Example 4 (Example 4):
  • Example 5 Analogously to Example 3, with the difference that instead of the dispersion powder Vinnapas ® 5044 N, the dispersion powder Vinnapas LL 4040 ® N (vinyl acetate-ethylene copolymer, stabilized with polyvinyl alcohol and a cationic Schutzkol- loid) and in place of 28.1 g of Water per 100 g of the dry mixture 28.0 g of water per 100 g of the dry mixture were used. Comparative Example 5 (Example 5):
  • Example 2 Analogously to Example 1, with the difference that the coating agent is an acrylate dispersion, i. no cementitious coating agent was used.
  • the tensile strength, elongation at break of the standard bars were determined by tensile test according to ISO 527-3 (8/1995). The standard bars were stretched to failure at a pull rate of 50 mm / min.
  • the adhesive tensile strength was determined according to DIN 18555-6. The
  • Shore A hardness was determined with a needle penetrometer at 23 ° C and 50% humidity.
  • Examples 1 to 4 are harder than the comparative example based on the acrylate dispersion (Comparative Example 5) and also show excellent mechanical properties, for example a high elongation at break, which is associated with desired crack-bridging properties. Furthermore, the aqueous coating compositions according to the invention dry out quickly and without cracking, even if they are applied in greater layer thicknesses.

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Abstract

L'invention concerne l'utilisation de produits de revêtement pour réaliser des revêtements d'infrastructures imperméables. L'invention se caractérise en ce que les produits de revêtement contiennent un ou plusieurs liants minéraux, un ou plusieurs polymères à base d'un ou de plusieurs monomères éthyléniquement insaturés, une ou plusieurs matières de charge et éventuellement un ou plusieurs additifs, au moins 60 % en poids des matières de charge présentant un diamètre supérieur ou égal à 10 μm, rapporté au poids total des matières de charge utilisées dans l'ensemble.
PCT/EP2011/065830 2010-09-23 2011-09-13 Produits de revêtement pour réaliser des revêtements d'infrastructures imperméables WO2012038302A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2011304488A AU2011304488B2 (en) 2010-09-23 2011-09-13 Coating agents for producing waterproof infrastructure coatings
BR112013006884A BR112013006884A2 (pt) 2010-09-23 2011-09-13 agentes de revestimento para a produção de revestimentos de infraestrutura à prova de água

Applications Claiming Priority (2)

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DE102010041291.0 2010-09-23
DE102010041291A DE102010041291A1 (de) 2010-09-23 2010-09-23 Beschichtungsmittel zur Herstellung von Wasser führenden Infrastrukturbeschichtungen

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WO2012038302A1 true WO2012038302A1 (fr) 2012-03-29

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016142339A1 (fr) 2015-03-09 2016-09-15 Basf Se Coulis d'étanchéité à base de ciment flexible
CN108947406A (zh) * 2018-08-29 2018-12-07 东南大学 一种聚合物水泥防水涂料及其制备方法
CN109485302A (zh) * 2018-11-29 2019-03-19 临海市朵纳卫浴有限公司 一种石英石台盆的制造方法
CN116695483A (zh) * 2023-06-05 2023-09-05 浙江广和新材料有限公司 一种无氟防水防油纸及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3371130B1 (fr) * 2015-11-02 2019-10-23 Basf Se 2-c-masse de revetement a sechage rapide et methode de sa production

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016142339A1 (fr) 2015-03-09 2016-09-15 Basf Se Coulis d'étanchéité à base de ciment flexible
CN108947406A (zh) * 2018-08-29 2018-12-07 东南大学 一种聚合物水泥防水涂料及其制备方法
CN109485302A (zh) * 2018-11-29 2019-03-19 临海市朵纳卫浴有限公司 一种石英石台盆的制造方法
CN116695483A (zh) * 2023-06-05 2023-09-05 浙江广和新材料有限公司 一种无氟防水防油纸及其制备方法

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AU2011304488B2 (en) 2014-02-20
BR112013006884A2 (pt) 2016-06-07
DE102010041291A1 (de) 2012-03-29

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