EP1979161A1 - Materiau composite multicouche - Google Patents

Materiau composite multicouche

Info

Publication number
EP1979161A1
EP1979161A1 EP06793920A EP06793920A EP1979161A1 EP 1979161 A1 EP1979161 A1 EP 1979161A1 EP 06793920 A EP06793920 A EP 06793920A EP 06793920 A EP06793920 A EP 06793920A EP 1979161 A1 EP1979161 A1 EP 1979161A1
Authority
EP
European Patent Office
Prior art keywords
polymer
multilayer composite
composite material
layer
material according
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Withdrawn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
EP06793920A
Other languages
German (de)
English (en)
Inventor
Willy Arber
Peter Guyer
Mario Slongo
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.)
Sika Technology AG
Original Assignee
Sika Technology AG
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 Sika Technology AG filed Critical Sika Technology AG
Priority to EP06793920A priority Critical patent/EP1979161A1/fr
Publication of EP1979161A1 publication Critical patent/EP1979161A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride

Definitions

  • the invention relates to the field of Folienverklebung and Folienverschweissung.
  • the object of the present invention is therefore to provide compositions which are suitable for bonding or welding together two different plastics or a plastic with concrete.
  • a multilayer composite material and a method according to the independent claims solves this problem.
  • Particularly preferred embodiments are specified in the subclaims.
  • this multilayer composite material is characterized by the fact that the two surfaces of the composite material can be welded or glued together well with various plastics.
  • the inventive composite material serves as a transition between two different plastics and also allows the joining of two different plastics. In addition, such composites have excellent processability.
  • the present invention relates to a multilayer composite comprising at least a first layer S1 of a first thermoplastic polymer material W1 and at least a second layer S2 of a second thermoplastic polymer material W2, wherein the first material W1 is a polymer P1, a thermoplastic polyurethane or a polyvinyl chloride (PVC), and contains or consists of at least one thermoplastic polymer P3, wherein the second material W2 contains or consists of a polymer P2 and at least one thermoplastic polymer P3, wherein the polymer
  • P2 at least one monomer unit M1, and optionally one
  • Monomer unit M2 wherein the monomer unit M1 is selected from the group consisting of ethylene, propylene and butylene unit and
  • the polymers P1, P2 and P3 are different from each other.
  • the first thermoplastic polymer material W1 of the first layer S1 of the multilayer composite material contains or consists of a polymer P1 and at least one thermoplastic polymer P3.
  • the polymer P1 consists of a thermoplastic polyurethane or a polyvinyl chloride (PVC). PVC has proved to be the preferred polymer P1.
  • the polymer P1 is a polymer based on a thermoplastic polyurethane.
  • Polyurethane-based polymers are prepared from polyisocyanate, preferably from polyurethane prepolymers containing several isocyanate groups.
  • the polyurethane prepolymer is obtained from the reaction of at least one polyisocyanate with a compound having two or more NCO-reactive functional groups.
  • NCO-reactive a compound having two or more NCO-reactive functional groups.
  • Groups are in particular hydroxyl, mercapto or primary or secondary
  • polyols As a compound having two or more NCO-reactive functional groups, in particular polyols, polyamines, or polyamino alcohols.
  • polyamino alcohols are diethanolamine, ethanolamine, triethanolamine.
  • polyether polyols, polyester polyols and polycarbonate polyols are preferred.
  • Preferred polyols are diols. Particular preference is given to mixtures of polyols, in particular a mixture of lower and higher molecular weight polyols, in particular diols, especially lower and higher molecular weight polyester, polyester and polycarbonate polyols, preferably a mixture of lower and higher molecular weight polyester, polyether and polycarbonate diols.
  • Low molecular weight polyols preferably have a molecular weight of 50 to 500 g / mol.
  • Higher molecular weight polyols preferably have a molecular weight above 500 g / mol, more preferably from 550 to 5000 g / mol, particularly preferably from 800 to 3000 g / mol.
  • Suitable polyester polyols are in particular those which are prepared, for example, from dihydric to trihydric alcohols, for example 1,2-ethanediol, diethylene glycol, 1,2-propanediol, dipropylene glycol, 1,4-butanediol, 1,5-pentanediol, 1, 6-hexanediol, neopentyl glycol, glycerol, 1,1,1-trimethylolpropane or mixtures of the abovementioned alcohols, with organic dicarboxylic acids or their anhydrides or esters, for example succinic acid, glutaric acid, adipic acid, suberic acid, sebacic acid, dodecanedicarboxylic acid, maleic acid, fumaric acid, Phthalic acid, isophthalic acid, terephthalic acid and hexahydrophthalic acid or mixtures of the aforementioned acids, and polyester polyols from lactones such as ⁇ -cap
  • polyester polyols are polyester polyols of adipic acid, sebacic acid or dodecanedicarboxylic acid as the dicarboxylic acid and of hexanediol or neopentyl glycol as the dihydric alcohol.
  • polyurethane prepolymers of polyols and polyisocyanates in particular of diols, preferably polyesterdiol, polyetherdiol or butanediol, triols or diol / triol mixtures and of diisocyanates, preferably aromatic, aliphatic or cycloaliphatic diisocyanates, trisocyanates or diisocyanate / trisocyanate mixtures.
  • the second thermoplastic polymer material W2 of the second layer S2 of the multilayer composite material contains or consists of a polymer P2 and at least one thermoplastic polymer P3.
  • the polymer P2 has at least one monomer unit M1, and optionally a monomer unit M2, where the monomer unit M1 is selected from the group consisting of ethylene, propylene and butylene
  • the number of the monomer unit M1 is at least 50%, preferably at least 60%, even more preferably at least 80%, most preferably 90% to 100% of all monomer units of the polymer P2.
  • monomer unit is meant throughout the present document a structural unit which results from unsaturated monomers after radical polymerization.
  • the monomer unit M1 is thus understood as meaning a structural unit which derives from the unsaturated monomers ethene, propene or 1-butene and mixtures thereof after free-radical polymerization has taken place.
  • the preferred polymers P2 have proven to be those in which the monomer unit M1 has been chlorinated or chlorosulfonated after the polymerization.
  • the polymer P2 can in addition to the monomer M1 another
  • Suitable other monomer units include units of vinyl acetate, acrylate, methacrylate, acrylic acid, methacrylic acid, fumaric acid, fumaric acid esters, maleic acid, Maleic acid ester, maleic anhydride, styrene, acrylonitrile, and vinyl chloride.
  • the polymer P2 is a polyolefin, preferably polyethylene, polypropylene, chlorinated polyethylene, chlorinated polypropylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene or chlorosulfonated copolymer of ethylene and propylene.
  • chlorosulfonated polyethylene or chlorosulfonated polypropylene has been found.
  • chlorosulfonated polyethylene especially as commercially available under the tradename Hypalon® from DuPont.
  • the polymer P3 of the first material W1 and the second material W2 is a thermoplastic polyurethane prepared from polyisocyanate, preferably diisocyanate, and polyesterpolyol or polyetherpolyol, preferably polyesterdiol or polyetherdiol.
  • the polymer P3 of the first material W1 and the second material W2 is a homo- or copolymer CP of at least two ethylenically unsaturated monomers, wherein at least one of the monomers is selected from the group consisting of ethylene, vinyl acetate, acrylate, methacrylate , Acrylic acid, methacrylic acid, fumaric acid, maleic acid, styrene, acrylonitrile, butadiene and mixtures thereof. Mixtures of two or more polymers, so-called polymer blends, can also be used as polymer P3. Particularly preferred are the copolymers CP of the monomers
  • the copolymer CP is preferably composed of 30-90% by weight, preferably 55-75% by weight of ethylene units and 10-70% by weight, preferably 25-45% by weight of vinyl acetate or (meth) acrylate units and optionally 1 -20% by weight of carbon monoxide units. The weight% are each based on the total weight of the copolymer.
  • Particularly preferred (meth) acrylates are acrylates, in particular n-butyl acrylate.
  • the copolymers without carbon monoxide preferably have one Melt index (MeIt Flow Index or MFI) of 0.1-100 g / 10 min, more preferably 0.3-20 g / 10 min, determined to ISO 1 133, measured at 2.16 kg and 190 ° C.
  • MFI Melt index
  • the copolymers comprising carbon monoxide preferably have a melt index (MFI) of 1 to 50 g / 10 min, more preferably of 5 to 40 g / 10 min, determined to ISO 1 133, measured at 2.16 kg and 190 ° C.
  • a particularly preferred copolymer CP is the terpolymer ethylene-vinyl acetate-carbon monoxide (EVACO) or the terpolymer ethylene (n-butyl acrylate) carbon monoxide (ENBACO), in particular as it is commercially available under the trade name Elvaloy HP® 441 from DuPont proved.
  • EVACO terpolymer ethylene-vinyl acetate-carbon monoxide
  • ENBACO terpolymer ethylene (n-butyl acrylate) carbon monoxide
  • monomer units are not meant to include the copolymer CP free monomers, but that the monomer units are copolymerized in the copolymer CP. Further preferred are prepared via metallocene catalysis
  • the copolymer CP of the polymer P3 is a copolymer of the monomers butadiene and acrylonitrile, the copolymer preferably containing 18-48 wt.%, Particularly preferably 25-40 wt.%, Acrylonithlattien. The weight% is based on the total weight of the copolymer.
  • the preferred copolymer CP has been a terpolymer of the monomers acrylate, styrene and acrylonitrile.
  • chlorinated polyethylene preferably containing from 20 to 60% by weight, preferably from 25 to 50% by weight, more preferably from 30 to 40% by weight, of chlorine atoms, the wt. % are based on the total weight of the copolymer.
  • the polymer P3 is preferably in an amount of 0.5-80% by weight, preferably 5-60% by weight, more preferably 10-50% by weight. particularly preferably from 20-35 wt .-% based on the total weight of the material W1 in the material W1 before.
  • the second material W2 contains at least one polymer P3 in the amount of 0.5-50 wt .-%, preferably 5-30 wt .-%, more preferably 10-20 wt .-%, based on the total weight of the material W2 ,
  • thermoplastics such as fillers such as e.g. Chalk, leveling agents, e.g. Metal soaps, additives such as UV and heat stabilizers, stabilizers, e.g. based on Ba / Zn or Ca / Zn, plasticizers such as e.g. epoxidized soybean oil, lubricants, drying agents, defoamers, surfactants, biocides, anti-settling agents, flame retardants, antioxidants, e.g. phenolic based, odorants, pigments such as e.g. Titanium dioxide or carbon black, and dyes.
  • fillers such as e.g. Chalk
  • leveling agents e.g. Metal soaps
  • additives such as UV and heat stabilizers, stabilizers, e.g. based on Ba / Zn or Ca / Zn
  • plasticizers such as e.g. epoxidized soybean oil, lubricants, drying agents, defoamers, surfactants, bioc
  • the proportion of further additives is between 0 and 70 wt .-%, in particular between 5 and 50 wt .-%, particularly preferably between 10 and 30 wt .-%, based on the weight of the material W1 or W2.
  • different pigments or dyes are added to the material W1 and the material W2, so that the two layers can also be distinguished from one another in terms of color. This is particularly advantageous when the multilayer composite is injured, e.g. a crack or cut, and the injury can be better detected by sifting the different colored layer.
  • the first material W1 of the first layer S1 and the second material W2 of the second layer S2, are non-positively connected, preferably in direct contact with each other.
  • the multilayer composite material consists of two layers S1 and S2, and there is no further layer such as an adhesive between the first layer S1 and the second layer S2.
  • direct contact with each other is meant that there is no further layer or substance between two materials and that the two materials are directly bonded together or adhere to each other, eg by welding or laminating to each other Materials are mixed together.
  • the suitable multilayer composite should not be tacky at temperatures below 60 ° C., in particular below 70 ° C., preferably below 80 ° C.
  • the thermoplastic composite is preferably elastic and in particular has an elongation at break of between 200 and 800%.
  • the first layer S1 and the second layer S2 of the multilayer composite material according to the invention have a thickness in the range from 10 .mu.m to 5 mm, in particular from 100 .mu.m to 2 mm, particularly preferably from 500 .mu.m to 1.5 mm.
  • the inventive multilayer composite material has a thickness of 100 .mu.m to 10 mm, in particular from 1 mm to 5 mm, particularly preferably from 1.5 mm to 3 mm.
  • the multilayer composite material may comprise a further layer S3 of a further material W3, which is non-positively connected, preferably in direct contact, with the first material W1 of the first layer S1.
  • the material W3 contains or consists of polyvinyl chloride.
  • the multilayer composite material may comprise a further layer S4 of a further material W4, which is non-positively connected, preferably in direct contact, with the second material W2 of the second layer S2.
  • the further material W4 of the layer S4 contains or consists of a polymer P4.
  • the polymer P4 has at least one monomer unit M3, and optionally a monomer unit M4, wherein the Monomer unit M3 is selected from the group consisting of ethylene, propylene and butylene unit and mixtures thereof, and wherein the amount of monomer unit M1 is at least 50%, preferably at least 60%, even more preferably at least 80%, most preferably 90% to 100% of all monomer units of the polymer is P4.
  • monomer unit is meant throughout the present document a structural unit which results from unsaturated monomers after radical polymerization.
  • the monomer unit M3 is thus understood as meaning a structural unit which derives from the unsaturated monomers ethene, propene or 1-butene and mixtures thereof after free-radical polymerization has taken place.
  • Preferred polymers P4 have proved to be those in which the monomer unit M3 has been chlorinated or chlorosulfonated after the polymerization.
  • the polymer P4 can in addition to the monomer unit M3 more
  • Suitable other monomer units include units of vinyl acetate, acrylate, methacrylate, acrylic acid, methacrylic acid, fumaric acid, fumaric acid esters, maleic acid,
  • the polymer P4 of the material W4 consists of a polyolefin, preferably polyethylene, polypropylene, chlorinated polyethylene, chlorinated polypropylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene or chlorosulfonated copolymer of ethylene and propylene.
  • polyethylene in particular polyethylene produced via metallocenes, and also chlorosulfonated polyethylene or chlorosulfonated polypropylene.
  • Another aspect of the present invention relates to the use of a multilayer, in particular a two-layer,
  • the present inventive multilayer composite material is surprisingly suitable as a transitional film between two further films, in particular between two films of different composition, which previously could not or hardly be connected to each other, or as a transitional film between a plastic film and a mineral substrate.
  • the transition foil is suitable for the connection of a polyvinyl chloride foil with a foil of the polymer P4, in particular of a chlorosulfonated polyethylene.
  • the multilayer composite material is therefore preferably a film, in particular a film strip.
  • a special area, where the invention can be used, is as a transitional film between two plastic films in the seal, cover, lining or insulation in the construction sector, especially in civil engineering.
  • this involves lining or sealing tunnel walls, basins and roofs or working, connecting, dilatation or settlement joints as well as cracks and repairing leaky joints in earth-covered structures, groundwater, tunnels, shafts and dams , Sewage systems, water reservoirs and swimming pools.
  • transitional thermoplastic films based on PVC as polymer P1 and an ENBACO copolymer as polymer P3 or on chlorosulfonated polyethylene as polymer P2 and an ENBACO copolymer as polymer P3 and over the surface of the layer have been found to be preferred S1 with a PVC film and over the surface of the layer S2 with a film of the polymer P4, in particular a film of a chlorosulfonated polyethylene, connected, preferably welded, can be.
  • the present invention relates to a method for producing a multilayered novel according to the invention
  • Composite comprising the steps of (a) melting and rolling the first material W1 on a rolling mill, preferably a calender, into a film S1; (b) melting and rolling out the second material W2 on a rolling mill, preferably a calender, to form a film S2; and (c) bonding the film S1 of (a) to the film S2 of (b) on a rolling mill or press, preferably a calender or extruder.
  • thermoplastic material W1 and the material W2 are each heated to an application temperature in the range of 80 ° to 250 ° C and melted, preferably by means of an extruder. Temperatures between 130 ° C and 210 ° C, in particular between 160 ° C and 190 ° C have proven to be particularly suitable.
  • the molten material W1 and the material W2 preferably first the material W1 and then the material W2, rolled and typically on a at 100 ° C to 250 ° C, preferably at 140 ° C to 200 0 C, more preferably 160 ° C to 185 ° C heated rolling mill, preferably a calender, to a film S1 and to a film S2 of a thickness in the range of 10 .mu.m to 5 mm, in particular from 100 .mu.m to 2 mm, particularly preferably from 500 .mu.m to 1.5 mm, most preferably pressed by about 1.1 mm.
  • the pressing may also be by means of a 100 ° C to 250 0 C, preferably at 140 ° C to 200 0 C, more preferably to 150 ° C to 185 ° C heated platen press at a pressure of 50 to 200 kN, preferably from 60 up to 160 kN, based on a pressure plate surface of typically a DIN A4 size done.
  • the film S1 is preferably on a to 140 ° C to 200 ° C, even more preferably heated to 160 ° C to 185 ° C rolling mill, preferably a calender, or at one at 100 ° C to 250 ° C, preferably to 150 ° C to 200 0 C, more preferably at 170 ° C to 180 ° C, heated plate press with a pressure of 50 to 150 kN, preferably from 80 to 120 kN, based on the pressing plate surface, connected to the film S2, preferably laminated or calendered, whereby a multilayer composite material having a total thickness of 100 .mu.m to 10 mm, in particular from 1 mm to 5 mm, more preferably from 1.5 mm to 3 mm, even more preferably from about 2 mm, is formed.
  • Typical H first 11 methods for multilayer composite materials made of plastic by means of a calender are described in Schwarz, Ebeling and Furth, "Kunststoff für", 9th edition, 2002, Vogel Verlag, pp. 23-28.
  • the molten material W1 and the molten material W2 is typically combined on an extruder via a nozzle, preferably a slot die, to form a two-layer composite material and the two materials W1 and W2 at one on 140 ° C to 200 ° C, still More preferably at 160 ° C to 185 ° C, heated mill to a multilayer composite material having a total thickness of 100 .mu.m to 10 mm, in particular from 1 mm to 5 mm, more preferably from 1.5 mm to 3 mm, even more preferably from about 2 mm pressed.
  • Typical production methods for multilayer composite materials made of plastic by means of an extruder are described in Schwarz, Ebeling and Furth, "Kunststoff für", 9th edition, 2002, Vogel
  • the multilayer composite is typically cooled, typically on a rolling mill, cut to size and rolled up on rolls.
  • the multilayer composite is produced on a calender or an extruder.
  • the multilayer composite material is cut to the desired size.
  • As preferred bands have a width of 1 to 200 cm, preferably from 5 to
  • the present invention relates to
  • Method for joining two materials W3 and W4 comprising the steps of (a) providing a multilayer, preferably two-layer composite material according to the invention with at least two layers, a first layer S1 of a first material W1 and a second layer S2 of a second material W2; (b) welding the material W1 of the multilayer composite material of (a) with at least a portion of the material W3; (c) welding the material W2 of the multilayer composite material of (a) with at least part of the Material W4; wherein step (b) and step (c) may be performed arbitrarily in succession or with each other.
  • the material W3 contains or preferably consists of polyvinyl chloride.
  • the material W4 preferably contains or consists of at least one polymer P4.
  • polymers P4 are particularly suitable for the material W4.
  • at least four-layered material is produced at the weld seam, the surface of the material W1 being welded to the material W3 and the surface of the material W2 being welded to the material W4.
  • the welding is preferably carried out with hot air at a
  • Temperature of preferably 300 to 700 ° C, in particular from 400 to 600 ° C, particularly preferably from 450 to 520 ° C.
  • This may be of a mechanical, chemical or physicochemical nature and may be, for example, a plasma treatment, in particular an ambient atmospheric pressure air plasma pretreatment, a primer or primer composition application and / or mechanical cleaning.
  • the materials are not pretreated and W1 is directly and without pretreatment bonded to W2, preferably laminated, and W1 is bonded to W3 and W2 is Welded directly and without pretreatment, preferably welded.
  • the films When used as transition films, the films, in particular in the form of tapes, are advantageously joined in two ways to the two materials W3 and W4 to be joined.
  • the transition foil in particular the transition band, is not completely bonded to the two materials W3 and W4, preferably welded, but only at their edges.
  • the composite site preferably the weld of the materials W3 and W4 is preferably 1 to 50 cm, more preferably 2 to 25 cm, most preferably 5 to 10 cm, wide.
  • the two materials W3 and W4 are bridged over the transition foil over the whole area, preferably welded.
  • the present invention relates to a method for
  • Bonding a multilayer composite material according to the invention with a mineral substrate comprising the steps:
  • the curing of the adhesive takes place.
  • the adhesive is thus applied to the surface of the material W2 of the multilayer composite material and subsequently joined to the substrate surface within the open time of the adhesive.
  • the adhesive is applied to the surface of the mineral substrate, in particular concrete or masonry, and then the multilayer composite material is added within the open time of the adhesive with the surface of the material W2, so that the adhesive, the surface of the material W2 of the multilayer Composite contacted.
  • a mineral substrate are particularly suitable rock, masonry or concrete structures such as concrete walls, concrete columns or concrete slabs in particular, which are used for example for the lining of tunnel walls.
  • a substrate is in particular also a layer of shotcrete, which was applied for example to secure rock.
  • the surface of the material W2 and / or the surface of the mineral substrate is pretreated before bonding.
  • These can be application of a primer or a primer composition and / or mechanical cleaning.
  • the mechanical cleaning in particular a brushing, grinding, sand or shot peening, is of great advantage.
  • the removal of the so-called cement skin in particular by means of grinding, sandblasting or shot blasting, and optionally additionally the use of a primer, is to be recommended as advantageous for ensuring a good and durable bonding.
  • a method without pretreatment in which the material W2 is bonded directly to the mineral substrate via the adhesive without pretreatment is particularly preferred.
  • polyurethane adhesives (meth) acrylate adhesives, epoxy resin adhesives or adhesives based on alkoxysilane-functional prepolymers are optimally suitable for bonding.
  • epoxy resin adhesives Particularly preferred are the epoxy resin adhesives.
  • one-component moisture-curing adhesives or two-component polyurethane adhesives are suitable as polyurethane adhesives.
  • Such adhesives contain polyisocyanates, in particular in the form of isocyanate group-containing prepolymers.
  • Polyurethane adhesives such as those sold by Sika GmbH AG under the product lines Sikaflex®, SikaPower® and SikaForce®, are preferred.
  • (Meth) acrylate adhesives are to be understood as meaning two-component adhesives whose first component comprises acrylic acid and / or methacrylic acid and / or their esters, and whose second component comprises a free-radical initiator, in particular a peroxide.
  • Preferred such adhesives are commercially available from Sika Buch AG under the SikaFast® product line.
  • Epoxy adhesives are adhesives which are formulated on the basis of glycidyl ethers, in particular of diglycidyl ethers of bisphenol A and / or bisphenol F. Particularly suitable are two-component one-component epoxy resin adhesives, one component of which contains diglycidyl ethers of bisphenol A and / or bisphenol F and the second component of which contains polyamines and / or polymercaptans. Preference is given to two-component epoxy resin adhesives, such as those commercially available from Sika GmbH under the product line Sikadur®.
  • the two-component epoxy resin adhesives Sikadur®-Combiflex®, Sikadur®-31, Sikadur®-31 DW and Sikadur®-33, preferably Sikadur®-Combiflex®, from Sika Sau AG have proven particularly suitable for bonding films to a substrate.
  • Adhesives based on alkoxysilane-functional prepolymers are understood in particular to be adhesives based on MS polymers or SPUR (silane-terminated polyurethane) prepolymers.
  • prepolymers or via an addition reaction of aminoalkylalkoxysilanes to produce isocyanate-functional Polyurethanprepolymere the polyurethane prepolymers in turn are accessible via a reaction of polyisocyanates and polyols and / or polyamines in a known manner.
  • Adhesives based on alkoxysilane-functional prepolymers are moisture-curing and react at room temperature.
  • step (c) Crosslinking of the adhesive in two-component adhesives already after mixing, or in one-component polyurethane adhesives or alkoxysilane-functional prepolymers based adhesives immediately after contact with humidity, begins.
  • the term of curing in step (c) is not to be understood as the beginning of curing, that is to say beginning of the crosslinking, but to the extent that the crosslinking has already progressed sufficiently far that the adhesive has already built up such a high strength that he can transmit forces and has reached the so-called early strength.
  • the curing is complete when the adhesive has reached its final strength.
  • the multilayer composite material preferably the transition foil, is advantageously glued in two ways.
  • the transition film is not glued over the entire surface of the mineral substrate, but only at the edges.
  • the edges of the film are advantageously comprised of adhesive on both sides.
  • the film is advantageously not covered with an adhesive.
  • the advantageous elastic film can thus movements of the dilation joints limiting concrete or masonry parts on which the film is positively connected by means of adhesive, join in and thus accomplish the crack-bridging sealing function.
  • the transition foil is glued over a working joint, or a crack, bridging the entire surface with the concrete or masonry.
  • Fig. 1 shows a schematic representation of a cross section through a two-layer composite material.
  • the two-layer film consists of a first layer S1 of the material W1 and a second layer S2 of the material W2.
  • the first layer S1 is connected to the second layer S2 in direct contact.
  • Fig. 2 shows a schematic representation of a cross section through a multilayer composite material.
  • the multilayer composite material consists of a two-layer transition foil with a first layer S1 of the material W1 and a second layer S2 of the material W2, wherein the layer S1 is directly connected to the layer S3 of the material W3 and the layer S2 directly to the layer S4 of the material W4.
  • the first layer S1 is connected to the second layer S2 in direct contact.
  • Figures 3A, 3B, 3C and 3D show various embodiments of how two sheets of different material can be bonded together in different ways via a two-layer transition foil.
  • Fig. 3A shows a schematic representation of a cross section through a multilayer composite material.
  • the multilayer composite material consists of a two-layer transition film, preferably a film strip, with a first layer S1 of the material W1 and a second layer S2 of the material W2, wherein the layer S1 at the edge directly with the layer S3 of the material W3 and the layer S2 is connected at the edge directly to the layer S4 of the material W4.
  • the first layer S1 is connected to the second layer S2 in direct contact.
  • the composite site preferably the weld between materials W1 and W3, and between W2 and W4 is preferably 0.5 to 20 cm, more preferably 1 to 10 cm, most preferably 2 to 5 cm wide.
  • the composite site, preferably the weld is less broad than half the width of the transition foil.
  • Fig. 3B shows a schematic representation of a cross section through a multilayer composite material as described in Fig. 3A.
  • the bond site preferably the weld, is about the same width as half the width of the transfer film.
  • FIG. 3C shows a schematic representation of another cross section through a multilayer composite material as in FIG. 3A described.
  • the bond site preferably the weld, is about the same width as the width of the transfer film, ie preferably 1 to 50 cm, more preferably 2 to 25 cm, most preferably 5 to 10 cm, wide.
  • Fig. 3D shows a schematic representation of a cross section through a multilayer composite material.
  • the multilayer composite material consists of two films, a layer S3 of the material W3 and a layer S4 of the material W4, which at the edge of the layer S3 and the layer S4 each have a two-layer transition film with a first layer S1 of the material W1 and a second layer S2 are directly connected from the material W2.
  • the first layer S1 is connected to the second layer S2 in direct contact.
  • Fig. 4A shows a schematic representation of a cross section through a two-layer transition foil which is glued to a mineral substrate.
  • the first layer S1 made of the material W1 is frictionally connected in direct contact with the second layer S2 of the material W2.
  • the second layer S2 is bonded to the mineral substrate U via an adhesive 5.
  • Fig. 4B shows a schematic representation of a cross section through a two-layer transition film which is glued to a mineral substrate and which adheres to a film S3 made of the material W3.
  • the first layer S1 of the material W1 is frictionally connected in direct contact with the second layer S2 of the material W2 and with the film S3 of the material W3.
  • the second layer S2 is bonded to the mineral substrate U via an adhesive 5.
  • the film S3 is, for example, a tunnel foil, which is used to cover the tunnel wall and which adheres via the transition foil and an adhesive to the substrate U, preferably a concrete floor.
  • a second mineral substrate U2 are particularly suitable rock, masonry or Concrete structures such as concrete walls, concrete columns or in particular concrete slabs, which are used eg for the lining of tunnel walls.
  • the second mineral substrate U2 is preferably a tunnel wall.
  • the multilayer composite material can be protected with a sealant 6, which allows neither moisture nor other environmental influences to come into contact with the two-layer transition foil.
  • PVC 100 parts by weight of PVC (K value 70) were epoxidized with 50-70 parts by weight of ENBACO (Elvaloy HP® 441 from DuPont), 2-3 parts by weight of Ba / Zn stabilizer, 1 part by weight Soy and 10-30 parts by weight chalk mixed. About 200 g of this composition were melted on a CoIMn mill at a temperature of about 170 ° C, mixed for 5 to 10 minutes and rolled to a coat of about 1.2 mm thickness. Subsequently, the coat was pressed by means of a heated to a temperature between 170 and 180 ° C plate press with a pressure of 80 kN, based on the pressing plate surface of the large DIN A4, to a film of 1.1 mm thickness. The films were cut to the dimension 280 x 200 x 1.1 mm.
  • Second Layer 100 parts by weight of Hypalon® 45 from DuPont were mixed with 10-25 parts by weight.
  • the film samples thus obtained were coated on the PVC side with a PVC-soft geomembrane, e.g. a Sikaplan® 14.6 tunnel railway, available from Sika für AG, welded.
  • the welding was done with hot air through a hand dryer at a temperature between 450 and 520 ° C.
  • Perpendicular to the weld seam 5 strips of 200 mm length and 50 mm width were punched out and the peel resistance of the seam according to EN 12316-2 was determined by means of a Zwick tensile tester type 1446.
  • the mean value of the peel resistance of 5 samples is 500 N / 50mm.
  • Polyolefin barrier sheet e.g. Sikaplan® 20 Peco, available from Sika Switzerland
  • the peel adhesion was checked with needle-nose pliers.
  • the loose end of the foil was grasped with the needle-nose pliers and rolled up with the pliers.
  • the application of torque to the pincers qualitatively assessed the peel adhesion according to the following rating key:
  • the PVC side of the transition band with a PVC-soft geomembrane such as a Sikaplan® 14.6 tunneling, available from Sika Switzerland AG, welded.
  • the welding was done with hot air through a hand dryer at a temperature between 450 and 520 ° C.
  • the PVC side of the transition band before bonding to the concrete with a PVC-soft geomembrane such as a Sikaplan® 14.6 tunneling, available from Sika Switzerland AG, welded and then with the Hypalon side of the transition band and an epoxy adhesive, eg Sikadur ⁇ -Combiflex® 31, available from Sika Switzerland AG, glued to a concrete surface.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un matériau composite multicouche comprenant au moins une première couche S1 et au moins une seconde couche S2, la première couche S1 contenant ou consistant en un premier matériau W1 fait de polychlorure de vinyle ou d'un polyuréthane thermoplastique, et d'un polymère thermoplastique P3, et la seconde couche S2 contenant ou consistant en un second matériau W2 fait d'un polymère P2 et d'un polymère thermoplastique P3, le polymère P2 présentant au moins une unité monomère M1 choisie dans le groupe contenant une unité éthylène, une unité propylène, et une unité butylène, et des mélanges de celles-ci, et la quantité de l'unité monomère M1 représentant au moins 50 % de toutes les unités monomères du polymère (P2).
EP06793920A 2005-09-30 2006-09-29 Materiau composite multicouche Withdrawn EP1979161A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06793920A EP1979161A1 (fr) 2005-09-30 2006-09-29 Materiau composite multicouche

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05109063A EP1769907A1 (fr) 2005-09-30 2005-09-30 Matériau composite multicouche
PCT/EP2006/066902 WO2007036569A1 (fr) 2005-09-30 2006-09-29 Materiau composite multicouche
EP06793920A EP1979161A1 (fr) 2005-09-30 2006-09-29 Materiau composite multicouche

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EP1979161A1 true EP1979161A1 (fr) 2008-10-15

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EP05109063A Withdrawn EP1769907A1 (fr) 2005-09-30 2005-09-30 Matériau composite multicouche
EP06793920A Withdrawn EP1979161A1 (fr) 2005-09-30 2006-09-29 Materiau composite multicouche

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CN101737066B (zh) * 2008-11-26 2012-07-25 山东宏祥化纤集团有限公司 吊挂式隧道专用防护光板及其制造方法
US10731057B2 (en) 2017-06-02 2020-08-04 Carlisle Intangible, LLC Pressure-sensitive PVC cover strip
US11826990B2 (en) * 2018-01-05 2023-11-28 Baxter International Inc. Multi-layer articles and methods for producing the same
CN114380623B (zh) * 2021-12-25 2022-10-18 南通嘉域工程技术有限公司 一种基于混凝土表面的耐候易洁抗裂保温的涂层

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DE3738549A1 (de) * 1987-11-13 1989-05-24 Niederberg Chemie Vlies
DE4209342A1 (de) * 1992-03-23 1993-09-30 Hoechst Ag Dichtungsbahn
WO1995022455A1 (fr) * 1994-02-18 1995-08-24 Reef Industries, Inc. Composite polymere/tissu continu, et methode de fabrication
DE4428591C2 (de) * 1994-05-28 2002-01-03 Alkor Gmbh Zwei- oder mehrlagige Kunststoffdichtungsbahn, Verfahren zum Abdichten von Bauten oder Bauwerksteilen mit einer Kunststoffdichtungsbahn sowie Verwendung derselben
DE9421920U1 (de) * 1994-05-28 1997-04-10 Alkor GmbH Kunststoffe, 81479 München Zwei- oder mehrlagige Kunststoffdichtungsbahn für Bauabdichtungen oder Abdichtungen im Druckwasserbereich
US5662983A (en) * 1994-09-01 1997-09-02 Geosynthetics, Inc. Stabilized containment facility liner
EP0767052A1 (fr) * 1995-10-02 1997-04-09 Sarna Patent- Und Lizenz-Ag Feuille d'étanchéité en matière synthétique

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EP1769907A1 (fr) 2007-04-04

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