DE102005048190A1 - Reinforced composites with concrete matrix have fibers with a sizing composition and a further coating forming an acid barrier layer interacting with the concrete - Google Patents

Reinforced composites with concrete matrix have fibers with a sizing composition and a further coating forming an acid barrier layer interacting with the concrete

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Publication number
DE102005048190A1
DE102005048190A1 DE200510048190 DE102005048190A DE102005048190A1 DE 102005048190 A1 DE102005048190 A1 DE 102005048190A1 DE 200510048190 DE200510048190 DE 200510048190 DE 102005048190 A DE102005048190 A DE 102005048190A DE 102005048190 A1 DE102005048190 A1 DE 102005048190A1
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Prior art keywords
coating
fibers
concrete
coating according
further
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Ceased
Application number
DE200510048190
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German (de)
Inventor
Shang-Lin Dr. Gao
Edith Dr. Mäder
Rosemarie Dipl.-Chem. Plonka
Christina Dipl.-Ing. Rothe
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Leibniz Institut fuer Polymerforschung Dresden EV
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Leibniz Institut fuer Polymerforschung Dresden EV
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Priority to DE200510048190 priority Critical patent/DE102005048190A1/en
Publication of DE102005048190A1 publication Critical patent/DE102005048190A1/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10Coating or impregnating
    • C04B20/12Multiple coating or impregnating
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/24Coatings containing organic materials
    • C03C25/26Macromolecular compounds or prepolymers
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/24Coatings containing organic materials
    • C03C25/26Macromolecular compounds or prepolymers
    • C03C25/28Macromolecular compounds or prepolymers obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C03C25/285Acrylic resins
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/24Coatings containing organic materials
    • C03C25/26Macromolecular compounds or prepolymers
    • C03C25/32Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C03C25/36Epoxy resins
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/48Coating with two or more coatings having different compositions
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/48Coating with two or more coatings having different compositions
    • C03C25/50Coatings containing organic materials only
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/34Filling pastes

Abstract

A coating on a concrete-bonded fibrous material in a reinforced composite contains (A) a sizing composition containing film-formers, adhesive aids and surfactants and (B) a further coating composition containing polymer dispersions, adhesive aids and surfactants, one or more of the components of the acid barrier layer formed by (A) and (B) being in a chemical and/or physical interaction with the alkaline groups of the concrete matrix.

Description

  • The This invention relates to the fields of chemistry and construction and relates to a coating in reinforced composites which for example in fiber-reinforced High performance concrete composites can be used.
  • As is known, fiber reinforced composites are used in construction. These composites often consist of alkali-resistant glass short fibers with a high ZrO 2 content (15 mass%), which are contained in a proportion of 3-5 vol.% In concretes. By using the fibers, however, the carrying capacity could be increased only slightly, since the fibers have not been distributed stress in the concrete. Therefore, the filament yarns were made into sheets which better aligned the fibers according to the load of the concrete member. Due to the elongated length of the rovings, the bending and / or tensile stresses of the concrete can be better absorbed. Thus, with the same proportion of fibers in the concrete improved load capacity could be achieved.
  • The Material properties of such textile reinforced concrete essentially by the characteristics of the reinforcing fibers, the concrete matrix and the boundary layer between fibers and concrete.
  • there the boundary layer between fiber and concrete is responsible for power transmission, so that it should be designed so that a possible size Adhesion between fiber and concrete is achieved.
  • Be known in addition the glass fibers, which in the glass fiber production with a Plain (finish, preparation, Avivage) are coated, usually coated with another adhesion improving agent or otherwise surface-modified.
  • The properties of ZrO 2 glass fibers, and in particular their tensile strength, are adversely affected despite their alkali resistance by the alkaline environment of the cement products and in particular by the presence of calcium hydroxide, which leads to corrosion of the filaments. Accordingly, investigations on property improvements of alkali-resistant glass fibers have always been made in the direction of improvement of tensile strength and alkali resistance.
  • From the DE 29 00 116 C2 For example, a method of improving the chemical resistance of glass fibers to concrete reinforcement is known. Thereafter, alkali-resistant glass fibers are treated with a 2 to 25% by weight aqueous solution of lead nitrate, tin chloride and / or tin sulfate. Thus, the alkali resistance was improved and a delay in the decrease of the existing tensile strength was achieved.
  • After DE 25 59 056 A1 For example, there is known a coating composition for alkali-resistant glass fibers which contains a partially cured A-type phenol-formaldehyde resin of water-diluted resol type. The coating is applied to glass fibers, cured at elevated temperature and subsequently the glass fibers are introduced into a Portland cement slurry. The test was carried out after curing of the cement and a 28-day leave in water at 50 ° C. An improvement of at least 10% in the tensile strength of the sample compared to a sample without glass fiber coating could be observed.
  • Of the Disadvantage of known coatings of alkali-resistant glass fibers is that the alkali resistance and adhesion in particular for high performance composites are not enough.
  • Accordingly were adhesives to improve adhesion as coatings applied to the fibers.
  • Solutions for this were, for example, after the GB 1 316 160 by roughening the surface of the glass fibers by immersion in an alkali solution or after CC Agbim (Mag. Concrete Res. 16 (1964) 49, pp. 195-202) and M. Krüger (Dissertation, University of Stuttgart 2004) by sprinkling the glass surface with Sand proposed for adhesion improvement. Another way to improve the adhesion by the use of plastic sizes with embedded finely dispersed quartz grains was by M. Ovessen (speech room 103 (1970) 24, p 1103) specify. It was also in the U.S. Patent 4,018,964 and by G. Rehm (Betonwerk + Fertigteil-Technik 39 (1973) 9, pp 638-641), an adhesion improvement by the mechanical anchoring of the fibers or continuous bonding through roughened, profiled or corrugated surfaces.
  • adversely in these known adhesives is that they are not multifunctional Effect, so no improvement in alkali resistance and at the same time increase reach the tensile strength.
  • The The object of the invention is a coating in reinforced composite materials indicate which multifunctional effect, ie an improvement the alkali resistance with simultaneous increase the tensile strength and fracture energy of the fiber-reinforced composite, having.
  • Is solved the object by the invention specified in the claims. Advantageous embodiments are the subject of the dependent claims.
  • The coating according to the invention in reinforced Composites are located on fibers, filaments or made from them Materials in concrete composites. It contains at least one sizing, wherein the size of at least film formers, adhesives and surfactants Means exists. Furthermore contains the coating at least one further coating agent, which at least from polymer dispersions, adhesives and surface-active Means exists. Also contains the coating at least one of one or more components of Simple and one or more components of the further coating agent resulting acidic barrier layer in chemical and / or physical interaction with alkaline groups of the concrete matrix.
  • advantageously, contains the size of alkali-resistant film formers from the group of epoxy resin dispersions, Acrylic dispersions, styrene-butadiene copolymers and / or polycationic Polymers, particularly advantageously as polycationic polymer Chitosan.
  • Farther Advantageously, as adhesives in the sizing compounds with basic amino-functional groups present.
  • Also Advantageously, as surfactants in the sizing cationic and nonionic surfactants present.
  • Also Advantageously, the size further comprises a nanodisperse Addition in the form of carbon nanotubes on.
  • Advantageous It is also when the further coating 2-20 vol .-% organic components having.
  • It is also advantageous if the polymer dispersions of the further coating consist of carboxylated, self-crosslinking styrene-butadiene dispersions and / or high molecular weight epoxy resin dispersions, more advantageously if the polymer dispersions have a T g range of 0-35 and / or have a closed film ,
  • From It is also advantageous if as an adhesive in the further coating agent Alkysilane of high chain length is available.
  • Farther it is advantageous if, as a surface-active agent in the further Coating agents wetting-improving nonionic surfactants available.
  • Also It is advantageous if the further coating continues to have a nanodisperse additive in the form of phyllosilicates.
  • A Another advantageous embodiment of the invention is when the fiber bundles of the roving inside chemically and / or physically with each other connected and the edge fibers with the acidic barrier layer and partly with the alkaline groups of the concrete matrix in chemical and / or physical interaction.
  • advantageously, are physicochemical interactions acid-base interactions.
  • And also advantageously, chemical interactions are covalent Bonds.
  • Farther It is advantageous if the coating is based on fibers and / or Threads by means of textile materials.
  • From It is also advantageous if the fibers and / or threads of alkali-resistant glass or carbon.
  • The coating according to the invention located on fibers, threads or materials produced therefrom which are in a reinforced composite material with a concrete matrix. These are from the fibers or Threads produced Materials preferably made by means of textile technologies.
  • at the coating of the invention On the one hand, exist between components of the sizing and components the further coating strong chemical and / or physical Interactions that extend into the inside of the thread and into the interior of fibers or threads produced materials and so to improve the tensile strength and fracture energy of the components with a coating according to the invention to lead. additionally improves the coating according to the invention the bending strength of many components.
  • on the other hand There are also chemical and / or physical interactions between the components of sizing and others Coating acidic barrier layer and the alkaline Groups of concrete matrix. This leads to an improvement the alkali resistance, because of the interactions alkaline groups of the concrete matrix are no longer bound for the corrosion of the fibers, threads or materials made from them.
  • These coating according to the invention represents a new form of boundary layer between fibers, filaments or made of these materials and the concrete matrix, both in the threads and materials made therefrom and, on the other hand, in the concrete matrix acts and thus to a significant improvement the carrying behavior and at the same time improved alkali resistance leads.
  • The coating according to the invention becomes like this generated.
  • On Fibers, threads or materials produced therefrom is due on the one hand their preparation process already a sizing with the invention necessary Ingredients, or it is for example by means of dipping, spraying or Spraying a watery Simple with the components of the invention applied. Subsequently, the further aqueous coating agent with the components according to the invention also for example by means of dipping, spraying or spraying on the already coated with sizing fibers, threads or applied materials made from it. Then be the so coated fibers, threads or materials produced therefrom. I'm not yet dried condition has become due to the existing sizing ingredients and the components of the further coating within the applied Overall coating of fibers, threads or the materials made therefrom, an acidic barrier layer educated. The so coated fibers, threads or made from them Materials are then incorporated into a concrete pulp or with this coated. Before curing of the concrete finds the chemical and / or physical interaction between at least the acidic barrier layer and the alkaline one Groups of concrete matrix instead. This chemical and / or physical Interactions are essentially acid-base interactions and covalent bonds.
  • The use of fibers or threads made of alkali-resistant glasses having a ZrO 2 content of at least 15% by volume or of carbon is particularly favorable.
  • Especially important for the coating of the invention is the vote of the components of the sizing and the other Coating agent on each other. As often the sizing on glass fibers already exists, are the components of the further coating agent tune it to form an acidic barrier layer which can then interact with the concrete matrix. There is one preferably full Formation of the barrier layer around the fibers, threads or produced therefrom Materials particularly advantageous. Not fully trained Barrier leads but also to significant improvements over the State of the art.
  • The coating according to the invention leads to a composite formation of the inner fibers. This ver Improve the dimensional stability and handling in practical use as an important prerequisite to maintain the fiber orientation and thus the achievement of maximum load capacity. With the coating according to the invention, the roughness of the fiber surfaces can be systematically varied, on the one hand the adhesion / friction is related and on the other hand, the strength can be increased.
  • following The invention is explained in more detail in several embodiments.
  • there demonstrate
  • 1 : Scanning Electron Microscopic Fracture Surface Acquisition of Glass Fibers (Example 1)
    and
  • 2 : Scanning Electron Microscopic Fracture Surface Absorption of Carbon Fibers (Example 2)
  • example 1
  • Alkali-resistant glass fibers are produced by means of jet spinning processes, which are coated with a size immediately after die exit, which leads to a coating which is uneven depending on the film-forming behavior of the polymeric film-forming agent and has maximum roughnesses of up to 150 nm. The glass fibers consist of SiO 2 = 7.9 mass%, Al 2 O 3 = 0.7 mass%, ZrO 2 = 15.5 mass%, Na 2 O = 12.1 mass% , K 2 O = 2.4 mass%, TiO 2 = 6.3 mass%.
  • The Contains simple a film former from 8% by weight of a commercially available aqueous high molecular weight epoxy resin dispersion (Neoxil 8294, DSM). When Contains adhesive the size 0.4% by weight of reactive amino- / alkyl-functionalized Silane (HS 2909) and 0.2 wt% N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane (A 1120, Cromton / OSI Specialties). As a cationic surfactant are 0.1% by weight of aliphatic amine (Neoxil 88710, DSM) and as nonionic surfactant are 0.3% by weight nonylphenol polyglycol ester (Arkopal N100, Clariant) included. The sizing approach will filled with 91% by weight of deionized water to 100% by weight. Out the fibers coated with this size become a spun yarn made with a spinner cake wrapper on a cuff wound up as glass roving and subsequently dried at 130.degree becomes.
  • On The strings the glass roving is then the further coating by means of a Foulards applied. The further coating consists of 55% by mass carboxylated styrene-butadiene latex (Plextol SB490, Fa. Polymer latex), from 0.2% by weight of N-propyltrimethoxysilane (PTMO, Degussa) and from 0.1% by weight of ethoxylated nonylphenol (Igepal CO 630, from Erbslöh KG). Of the Coating batch is made up with 44.7 mass% of deionized water 100% by weight filled up.
  • To the application of the further coating on the threads of Glass rovings are dried at 135 ° C.
  • At the glass rovings provided with size and the further coating Roving tensile tests were carried out. The results are in Table 1 given. The results show that by the application the further coating and the associated composite formation the fibers with each other (thread closure in the interior) and with the other Coating a significant increase the roving tensile strength of around 70% could be achieved.
  • following are the glass rovings with the further coating with a fineness of 640 tex in Portland cement pulp with a pH of 13.7 incorporated and processed into test specimens Service.
  • Sub-reinforced tensile tests were carried out on the specimens and the occurring maximum force F max was determined on the basis of the force-displacement curves. The results are included in Table 2. 1 (left) shows a scanning electron micrograph of glass filaments according to the prior art after embedding in concrete and subsequent breaking of the composite. There are no matrix components on the filaments because there is no interaction between the fiber surface and concrete. 1 (right) shows glass filaments that have interacted with the concrete matrix due to the coating according to the invention. At the fracture surface, many particles adhere to the concrete matrix. The results show that the Ma In the case of the test specimens provided with the coating according to the invention, the x-ray strength is 50% higher.
  • to Determination of alkali resistance were the glass rovings provided with the further coating in NaOH solution stored at room temperature for 28 days, then with dilute hydrochloric acid and distilled Water rinsed and dried. By measuring the loss on ignition according to DIN ISO 1887 is the proportion of organic constituents of the glass fibers before and determined after the alkali storage. In the initial state the glass fibers 9.2 wt .-% organic components. After the alkali storage were still 9.2 Ma .-% of organic ingredients available. The results show a significantly improved resistance to alkali with the coating according to the invention provided glass rovings.
  • In order to is with the coating according to the invention both the tensile strength and the adhesion / fracture energy as well as the alkali resistance improved at the same time.
  • Example 2
  • Kohlenstofffaserrovings with a fineness of 800tex are made with an epoxy sizing coated.
  • The further coating is then applied to the threads of the carbon fiber roving by means of a padder. The coating is composed of a mixture of 50% by weight of the carboxylated styrene-butadiene copolymer (LEFASOL VL31 / 1%) with a T g value of 6 and 10 mass (LEFASOL VL26 / 05) with the T g Value 35. After application of the further coating on the threads of the carbon fiber roving, drying takes place at 135 ° C.
  • At carbon fiber rovings provided with size and the further coating Roving tensile tests were carried out. The results are in Table 1 given. The results show that by the application the further coating and the associated composite formation the fibers with each other (thread closure in the interior) and with the other Coating a significant increase Roving tensile strength of up to 134% could be achieved.
  • following are the carbon fiber rovings with the further coating in Portland cement pulp with a pH of 13.7 incorporated and processed into test specimens Service.
  • Sub-reinforced tensile tests were carried out on the specimens and the occurring maximum force F max was determined on the basis of the force-displacement curves. The results are included in Table 2. 2 (left) shows a scanning electron micrograph of prior art carbon fibers after embedding in concrete and subsequent breakup of the composite. There are no matrix components on the filaments because there is no interaction between the fiber surface and concrete. 2 (right) shows carbon fibers which interact with the concrete matrix due to the coating according to the invention. At the fracture surface, many particles adhere to the concrete matrix. The results show that the maximum force in the test pieces provided with the coating according to the invention is up to 119% higher.
  • To The prior art coated carbon fibers do not form any Boundary layer to the concrete matrix, which allows good adhesion and they therefore have only a low adhesion to the concrete matrix. It is It is known that in alkaline matrix around the fibers a shell-like Structure of calcium silicate hydrate phases and calcium hydroxide phases formed. This will make the boundary layer and the carbon fibers damaged. It comes to a stiffening effect through the shell-like structure and thus to an embrittlement of Carbon fiber. As a result, it already fails at low loads. The application of the coating according to the invention protects the carbon fiber as they form through the acidic barrier layer prevents the shell-like structure.
  • In order to is with the coating according to the invention both the tensile strength and the adhesion / fracture energy as well as the alkali resistance improved at the same time.
  • Table 1
    Figure 00110001
  • Table 2
    Figure 00110002

Claims (18)

  1. Coating in reinforced composite materials, wherein the coating on fibers, filaments or produced therefrom Materials in concrete composites containing at least one Simple, at least consisting of film formers, adhesives and surfactants Means, and at least one further coating agent, at least consisting of polymer dispersions, adhesives and surface-active Means, and at least one of one or more components the sizing and one or more components of the further Coating agent resulting acidic barrier layer in chemical and / or physical interaction with alkaline groups of the concrete matrix stands.
  2. The coating of claim 1, wherein the sizing alkali-resistant film-forming agents from the group of epoxy resin dispersions, Acrylic dispersions, styrene-butadiene copolymers and / or polycationic Contains polymers.
  3. Coating according to claim 2, wherein the polycationic Polymer chitosan is present.
  4. Coating according to claim 1, wherein as an adhesive in the plain, compounds with basic amino-functional groups available.
  5. Coating according to claim 1, wherein as the surface-active Medium in the plain cationic and nonionic surfactant Funds are available.
  6. The coating of claim 1, wherein the sizing furthermore, a nanodisperse additive in the form of carbon nanotubes having.
  7. The coating of claim 1, wherein the further Coating 2-20 Vol .-% organic constituents.
  8. Coating according to claim 1, wherein the polymer dispersions the further coating of carboxylated, self-crosslinking Styrene-butadiene dispersions and / or high molecular weight Epoxydharzdispersionen consist.
  9. A coating according to claim 8, wherein the polymer dispersions have a T g range of 0-35.
  10. A coating according to claim 8, wherein the polymer dispersions have a closed film.
  11. Coating according to claim 1, wherein as an adhesive in the further coating agent alkysilane of high chain length present is.
  12. Coating according to claim 1, wherein the surface-active Agent in the further coating agent wetting improving nonionic Surfactants are present.
  13. The coating of claim 1, wherein the further Coating further a nanodisperse addition in the form of phyllosilicates having.
  14. A coating according to claim 1, wherein the fiber bundles of the Rovings in the interior chemically and / or physically connected and the peripheral fibers with the acidic barrier layer and partially with the alkaline groups of the concrete matrix in chemical and / or physical interaction.
  15. A coating according to claim 1, wherein the physicochemical Interactions acid-base interactions are.
  16. Coating according to claim 1, wherein the chemical Interactions are covalent bonds.
  17. The coating of claim 1, wherein the coating on fibers and / or threads is located using materials produced by textile technologies.
  18. Coating according to claim 1, wherein the fibers and / or threads consist of alkali-resistant glass or carbon.
DE200510048190 2005-09-30 2005-09-30 Reinforced composites with concrete matrix have fibers with a sizing composition and a further coating forming an acid barrier layer interacting with the concrete Ceased DE102005048190A1 (en)

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US20100215948A1 (en) * 2009-02-20 2010-08-26 University Of Delaware Rubbery-block containing polymers, fiber sizings thereof and composites thereof
WO2010135335A1 (en) * 2009-05-18 2010-11-25 Ppg Industries Ohio, Inc. Aqueous dispersions, conductive fiber glass strands, and composites comprising the same
EP2421008A1 (en) * 2010-08-20 2012-02-22 Airbus Operations Limited Bond lead
DE102011103008A1 (en) * 2011-05-24 2012-11-29 Sto Ag Coating system, thermal insulation composite system, thermal insulation board, reinforcement and method for forming a functional layer
DE102015100438B3 (en) * 2015-01-13 2016-03-24 Technische Universität Dresden Production of prefabricated parts from textile concrete
DE102016100455A1 (en) 2015-01-13 2016-07-14 Technische Universität Dresden Textile reinforcement and its manufacture
WO2017156206A1 (en) * 2016-03-10 2017-09-14 Ocv Intellectual Capital, Llc Silica-coated composite fiber for the reinforcement of concrete
DE102017124617A1 (en) 2016-10-21 2018-04-26 Hochschule für Technik, Wirtschaft und Kultur Leipzig Multilayer component
DE102017113206A1 (en) * 2017-06-15 2018-12-20 Leibniz-Institut Für Polymerforschung Dresden E.V. Sizing-free and silane-free modified fiberglass surfaces, composite materials made therefrom, and methods of making the modified fiberglass surfaces
WO2018229186A1 (en) * 2017-06-15 2018-12-20 Leibniz-Institut Für Polymerforschung Dresden E.V. Surface-modified glass fibers for reinforcing concrete, and method for producing same
WO2019091832A1 (en) 2017-11-10 2019-05-16 CHT Germany GmbH Fibre products with a coating made formed from aqueous polymer dispersions

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Cited By (16)

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Publication number Priority date Publication date Assignee Title
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