WO1999055783A1 - The use of dual component pur systems for producing sound-absorbing coatings - Google Patents

The use of dual component pur systems for producing sound-absorbing coatings Download PDF

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Publication number
WO1999055783A1
WO1999055783A1 PCT/EP1999/002489 EP9902489W WO9955783A1 WO 1999055783 A1 WO1999055783 A1 WO 1999055783A1 EP 9902489 W EP9902489 W EP 9902489W WO 9955783 A1 WO9955783 A1 WO 9955783A1
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WIPO (PCT)
Prior art keywords
component
producing sound
dual component
absorbing coatings
pur systems
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PCT/EP1999/002489
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German (de)
French (fr)
Inventor
Joachim Petzoldt
Frank Kobelka
Holger Casselmann
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Bayer Aktiengesellschaft
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Application filed by Bayer Aktiengesellschaft filed Critical Bayer Aktiengesellschaft
Priority to AU38158/99A priority Critical patent/AU3815899A/en
Publication of WO1999055783A1 publication Critical patent/WO1999055783A1/en

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/18—Internal lining, e.g. insulating
    • B61D17/185—Internal lining, e.g. insulating for sound insulating
    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2350/00—Acoustic or vibration damping material

Definitions

  • the invention relates to the use of solvent-free and solvent-free 2K
  • Machines and motors generate noise and vibrations during operation, which can lead to disruptive additional noise (drones), unpleasant vibrations or the like by transferring them to cladding or housing parts, covers or in the vehicle area to body parts, in extreme cases when the resonance frequency occurs the larger the covers or sheet metal parts, the greater the risk that such problems will occur
  • Fiber and dust emissions which can be particularly troublesome in connection with painting systems, since they increase the error rate in painting.
  • Coverings made of mats have seams that can be infiltrated if moisture is used for a long time, which e.g. in the vehicle area can lead to moisture nests and the resulting corrosion and swelling damage or even large-scale detachments of the sound insulation mats. However, such a detachment reduces the sound-absorbing effect of these mats.
  • Example of hot-sprayed bitumen materials used for this purpose This method avoids the time-consuming processing of the mats on components with complex geometries and does not produce fiber emissions.
  • problems with the moisture load due to corrosion can occur in the long term due to the relatively poor adhesion to the metal sheet
  • sprayable 2-component PUR coatings are suitable as a replacement for the above-mentioned dam materials and, in comparison to the sound insulation mat, particularly with regard to the production time and the fact that closed, seamless coatings can be produced. have significant economic and technical advantages
  • the invention therefore relates to the use of sprayable 2-component PUR systems for the production of sound-absorbing coatings
  • Primed materials such as KTL-coated steel sheet, aluminum, galvanized sheet, various plastics are used as substrates, which are used in machine housings but also in passenger car and commercial vehicle construction and in the construction of rail vehicles , Buses or other large vehicles is suitable for the use of such a coating - 3 -
  • the sound insulation coating can be used with or without a suitable primer. An intimate and lasting bond is achieved across the entire surface.
  • PUR coatings can be adjusted very flexibly, elongation at break
  • Room temperatures of 100 to 150% can be achieved without problems. Mechanical stresses, such as those caused by twisting in the vehicle area, are easily accepted by such materials
  • sprayable two-component PU systems can be used such as are described, for example, in DE-A 19 610 390
  • the 2K-PUR systems generally consist of the pigmented polyol component described below based on more or less branched polyester / ether, so-called A component and a polyisocyanate based on MDI as a hard, so-called
  • Barium sulfate with a proportion based on total resin of 70-80% by weight, is preferably used for the pigmentation.
  • Other fillers / pigments with a lamellar structure for example mineral magnesium silicate hydrate, and those such as calcium carbonate have also been found
  • the additional amounts are in the range of 20-30% by weight or 5-15% by weight based on the total resin
  • the rheology of the system is firstly the use of a pyrogenic
  • Titanium dioxide used - 4 -
  • Selectively acting additives are used to absorb moisture adhering to the surface of fillers / pigments for improved pigment wetting and for deaeration of the dispersion batch.
  • a prepolymerized, aromatic polyisocyanate based on MDI is used as the hard component, the so-called B component
  • Viscosity, 23 ° C, D 81.8 s " 1 6000-8000 mPa s ⁇
  • Viscosity, 23 ° C, D 81.8 s " 2 approx. 1000 mPa s ⁇ B component
  • a 2-component piston pump system is required to process such a coating system.
  • the A and B components (pigmented polyol mixture / polyisocyanate) mixed in one or two Keniks mixers in a ratio of approx. 3.5-4 1 (by volume). Harter) are processed by means of a piston pump system in the so-called airless or airmix process.
  • the A component can be tempered to approx. 30 to 50 ° C in order to optimize processing (metering and mixing)
  • the coating is applied several times in a cloister by hand or robot using a spray gun with a fixed or adjustable nozzle at a material pressure of 150 to 250 bar, until a layer thickness of approx. 6 to 8 mm is achieved on horizontal and vertical surfaces.
  • the coating material can be aromatic when used Di- or polyisocyanates (MDI, TDI) are processed for about 3 minutes, the flow rate is about 1.1 to 2.5 l / min aliphatic di- or polyisocyanates (HDI, IPDI, W) allow significantly longer processing times - 6 -
  • the 2-component PUR sound insulation system applied in this way cures within 15 minutes at room temperature and then dries for 45 minutes at 80 to 90 ° C and has the following properties:
  • Abrasion resistance Using a stone chip multi-shot device according to MB at 0.6 to 0.8 bar ok
  • a 2-component piston pump system is required to process such a coating system
  • the A and B components (pigmented polyol mixture / polyisocyanate hardener) mixed in one or two Keniks mixers in a ratio of approx. 1.3-1.5 1 (by volume) are pumped into a so-called airless or airmix system.
  • the A component can be tempered to approx. 40 to 50 ° C
  • the substrates used in the KTL process are primed sheet steel as well as pre-primed wood panels or wood panels pretreated with a suitable wooden spatula, which function as flooring or loading space coatings in rail vehicles, buses or other large vehicles Adhesion should be prepared accordingly.
  • a suitable wooden spatula which function as flooring or loading space coatings in rail vehicles, buses or other large vehicles Adhesion should be prepared accordingly.
  • the coating is applied several times in a cloister by hand using a spray gun with a fixed or adjustable nozzle at a material pressure of 150 to 350 bar until a layer thickness of approx. 2 to 3 mm is achieved on horizontal and vertical surfaces. It can take approx. 15 to 30 minutes processed, the flow rate is between 1.1 to 2.5 1 / min

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Multimedia (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention relates to the use of dual component PUR systems which are low in or free of solvents for producing sound-absorbing coatings.

Description

2K-PUR-SYSTEME ZUR HERSTELLUNG VON SCHALLDÄMMENDEN BESCHICHTUNGEN 2K PUR SYSTEMS FOR THE PRODUCTION OF SOUND-INSULATING COATINGS
Die Erfindung betrifft die Verwendung von losemittelarrnen und lösemittelfreien 2K-The invention relates to the use of solvent-free and solvent-free 2K
PUR-Systemen zur Herstellung von schalldammenden BeschichtungenPUR systems for the production of sound-absorbing coatings
Maschinen und Motoren erzeugen wahrend des Betriebs Lärm und Vibrationen, die durch Übertragung auf Verkleidungs- oder Gehauseteile, Abdeckungen oder im Fahr- zeugbereich auch auf Karosserieteile, im Extremfall bei Eintreten der Resonanzfrequenz, zu störenden Zusatzgerauschen (Drohnen), unangenehmen Vibrationen o a fuhren können Je großflächiger die Abdeckungen oder Blechteile sind, desto großer ist die Gefahr, daß derartige Probleme auftretenMachines and motors generate noise and vibrations during operation, which can lead to disruptive additional noise (drones), unpleasant vibrations or the like by transferring them to cladding or housing parts, covers or in the vehicle area to body parts, in extreme cases when the resonance frequency occurs the larger the covers or sheet metal parts, the greater the risk that such problems will occur
Diese Larmquellen sind in Werkhallen in Bezug auf die Arbeitssicherheit (Schädigung des Gehörs bei Dauerbelastung) und in Fahrzeugen vor allem auch in Bezug auf den Komfort kritischIn factories, these sources of noise are critical with regard to occupational safety (damage to the hearing during long-term exposure) and, above all, with regard to comfort in vehicles
Es werden daher sowohl im Maschinenbau wie auch im Fahrzeugbau erhebliche An- strengungen unternommen, um durch Aufbringen schalldammender Materialien auf gefährdete Bauteile Effekte der oben beschriebenen Art zu vermeiden Durch Herstellung eines innigen Verbundes zwischen Schalldamm-Material und Bauteil wird eine Dampfung der Schwingungen erzielt. Der hier beschriebene Effekt beruht meist auf der Aufbringung von Masse Entsprechend dem Massebedarf wird eine entspre- chende Schichtstarke des Damm-Materials aufgetragen Schichten von 3 bis 10 mm des Schalldamm-Materials sind keine SeltenheitConsiderable efforts are therefore made both in mechanical engineering and in vehicle construction in order to avoid effects of the type described above by applying sound-absorbing materials to endangered components. By producing an intimate bond between sound-absorbing material and component, the vibrations are damped. The effect described here is mostly based on the application of mass. Depending on the mass requirement, a corresponding layer thickness of the dam material is applied. Layers of 3 to 10 mm of the sound dam material are not uncommon
Häufig werden in diesem Zusammenhang sogenannte Schwerspatmatten oder auchIn this context, so-called heavy spar mats are often used
Bitumenmatten verwendet Diese müssen oft von Hand zugeschnitten werden und von Hand eingeklebt werden Dies stellt einen zeit- und kostenintensiven Fertigungsschritt dar In der Fertigung z B von PKW fuhrt dieses Arbeitsweise außerdem zu einer - 2 -Bitumen mats used These often have to be cut to size by hand and glued in by hand. This is a time-consuming and cost-intensive production step - 2 -
Faser- und Staubemission, die vor allem in Verbindung mit Lackieranlagen störend sein kann, da sie die Fehlerquote bei der Lackierung erhöht.Fiber and dust emissions, which can be particularly troublesome in connection with painting systems, since they increase the error rate in painting.
Aus Matten aufgebaute Belage weisen Nahte auf, die bei langer Benutzung von Feuchte unterwandert werden können, was z.B. im Fahrzeugbereich zu Feuchtenestern und daraus resultierenden Korrosions- und Quellungsschaden oder auch großflächigen Ablösungen der Schalldamm-Matten fuhren kann. Eine solche Ablösung setzt aber die schalldammende Wirkung dieser Matten herab.Coverings made of mats have seams that can be infiltrated if moisture is used for a long time, which e.g. in the vehicle area can lead to moisture nests and the resulting corrosion and swelling damage or even large-scale detachments of the sound insulation mats. However, such a detachment reduces the sound-absorbing effect of these mats.
Auch spritzbare Materialien sind für solche Anwendungen bekannt So werden zumInjectable materials are also known for such applications
Beispiel warm verspritzte Bitumenmassen für diese Zwecke eingesetzt Dieses Verfahren vermeidet die zeitaufwendige Verarbeitung der Matten an Bauteilen komplexer Geometrie und erzeugt keine Faseremission Bei Verwendung der Bitumenmassen im Fahrzeugbereich können aber aufgrund relativ schlechter Haftung zum Blech auf Dauer Probleme in der Feuchtebelastung durch Korrosion auftretenExample of hot-sprayed bitumen materials used for this purpose. This method avoids the time-consuming processing of the mats on components with complex geometries and does not produce fiber emissions. When using the bitumen materials in the vehicle area, problems with the moisture load due to corrosion can occur in the long term due to the relatively poor adhesion to the metal sheet
Es wurde nun gefunden, daß spritzbare 2K-PUR-Beschichtungen als Ersatz für die oben erwähnten Damm-Materialien geeignet sind und gegenüber der Schalldamm- Matte besonders im Hinblick auf die Fertigungszeit und die Tatsache, daß man ge- schlossene, nahtlose Beschichtungen erzeugen kann, erhebliche ökonomische und technische Vorteile habenIt has now been found that sprayable 2-component PUR coatings are suitable as a replacement for the above-mentioned dam materials and, in comparison to the sound insulation mat, particularly with regard to the production time and the fact that closed, seamless coatings can be produced. have significant economic and technical advantages
Gegenstand der Erfindung ist daher die Verwendung von spritzbaren 2K-PUR-Syste- men zur Herstellung von schalldammenden BeschichtungenThe invention therefore relates to the use of sprayable 2-component PUR systems for the production of sound-absorbing coatings
Als Substrate kommen dabei grundierte Materialien wie KTL-beschichtetes Stahlblech, Aluminium, verzinktes Blech, diverse Kunststoffe, die bei Maschinengehausen aber auch im PKW und Nutzfahrzeugbau und im Bau von Schienenfahrzeugen eingesetzt werden Auch geeignet grundiertes Holz, das z B als Fußboden in Schienen- fahrzeugen, Omnibussen oder sonstigen Großfahrzeugen zum Einsatz kommt, ist für den Einsatz einer solchen Beschichtung geeignet - 3 -Primed materials such as KTL-coated steel sheet, aluminum, galvanized sheet, various plastics are used as substrates, which are used in machine housings but also in passenger car and commercial vehicle construction and in the construction of rail vehicles , Buses or other large vehicles is suitable for the use of such a coating - 3 -
Je nach Untergrund (Metall, Kunststoff, Holz) kann die Schalldamm-Beschichtung mit oder ohne geeignete Grundierung verwendet werden. Es wird vollflachig ein inniger und dauerhafter Verbund erzielt.Depending on the surface (metal, plastic, wood), the sound insulation coating can be used with or without a suitable primer. An intimate and lasting bond is achieved across the entire surface.
PUR-Beschichtungen können sehr flexibel eingestellt werden, Reißdehnungen beiPUR coatings can be adjusted very flexibly, elongation at break
Raumtemperatur von 100 bis 150 % sind problemlos zu realisieren Auch mechanische Belastungen, wie sie z B im Fahrzeugbereich durch Verwindung entstehen, werden von solchen Materialien problemlos hingenommenRoom temperatures of 100 to 150% can be achieved without problems. Mechanical stresses, such as those caused by twisting in the vehicle area, are easily accepted by such materials
Erfindungsgemaß können als spritzbare 2K-PUR Systeme solche eingesetzt werden wie sie z B in der DE-A 19 610 390 beschrieben sindAccording to the invention, sprayable two-component PU systems can be used such as are described, for example, in DE-A 19 610 390
Die 2K-PUR Systeme bestehen im allgemeinen aus nachfolgend beschriebener pigmentierter Polyolkomponente auf Basis mehr oder weniger verzweigter Polyester/- ether, sog A-Komponente und einem Polyisocyanat auf MDI-Basis als Harter, sogThe 2K-PUR systems generally consist of the pigmented polyol component described below based on more or less branched polyester / ether, so-called A component and a polyisocyanate based on MDI as a hard, so-called
B-KomponenteB component
Für die Pigmentierung wird vorzugsweise Bariumsulfat, mit einem Anteil bezogen aus Gesamtharz von 70 - 80 Gew -%, verwendet Als weitere Füllstoffe/Pigmente haben sich solche mit lamellarer Struktur, z B mineralisches Magnesium-Silikat-Hydrat als auch solche wie Calcium-Carbonat bewahrt Die Zusatzmengen liegen dabei im Bereich 20-30 Gew -% bzw 5-15 Gew -% bezogen auf GesamtharzBarium sulfate, with a proportion based on total resin of 70-80% by weight, is preferably used for the pigmentation. Other fillers / pigments with a lamellar structure, for example mineral magnesium silicate hydrate, and those such as calcium carbonate have also been found The additional amounts are in the range of 20-30% by weight or 5-15% by weight based on the total resin
Die Rheologie des Systems wird zum einem durch Verwendung einer pyrogenenThe rheology of the system is firstly the use of a pyrogenic
Kieselsaure, zum anderen durch chemische Thixotropierung mit Hilfe eines entsprechend wirksamen Additivs gesteuert, übliche Zusatzmengen liegen jeweils bei 1-2 Gew -% bezogen auf GesamtharzSilicic acid, on the other hand controlled by chemical thixotropy with the aid of a correspondingly effective additive, customary addition amounts are in each case 1-2% by weight, based on the total resin
Zur Farbgebung werden geringe Mengen entsprechender Pigmente wie z B Ruß,Small amounts of appropriate pigments such as carbon black,
Titandioxid eingesetzt - 4 -Titanium dioxide used - 4 -
Zur Absorption oberflächlich anhaftender Feuchtigkeit an Füllstoffen/Pigmenten für eine verbesserte Pigmentbenetzung sowie für eine Entlüftung des Dispergieransatzes werden entsprechend selektiv wirkende Additive eingesetzt. Selectively acting additives are used to absorb moisture adhering to the surface of fillers / pigments for improved pigment wetting and for deaeration of the dispersion batch.
- 5 -- 5 -
BeispieleExamples
Als Harter, sog B-Komponente, wird ein prepolymeπsiertes, aromatisches Polyiso- cyanat auf Basis MDI verwendetA prepolymerized, aromatic polyisocyanate based on MDI is used as the hard component, the so-called B component
Physikalische Kenndaten des SystemsPhysical characteristics of the system
Dichte, 23°C ca 1,55 g/mlDensity, 23 ° C about 1.55 g / ml
Viskosität, 23°C, D=81,8 s"1 6000-8000 mPa s }Viscosity, 23 ° C, D = 81.8 s " 1 6000-8000 mPa s}
Grenzviskositat 4500-5000 mPa s } A-KomponenteIntrinsic viscosity 4500-5000 mPa s} A component
Fließgrenze 15-20 Pa }Yield point 15-20 Pa}
Strukturexponent -0,2- -0,3 }Structure exponent -0.2- -0.3}
Viskosität, 23 °C, D=81,8 s"2 ca 1000 mPa s } B-KomponenteViscosity, 23 ° C, D = 81.8 s " 2 approx. 1000 mPa s} B component
Für die Verarbeitung eines derartigen Beschichtungssystems ist eine 2-Komponenten- Kolbenpumpenanlage erforderlich Die in einem oder zwei Keniks-Mischem im Ver- haltnis ca 3,5-4 1 (nach Volumen) vermischten A- und B-Komponenten (pigmentiertes Polyolgemisch/Polyisocyanat-Harter) werden mittels einer Kolbenpumpenanlage im sogenannten airless- bzw airmix- Verfahren verarbeitet Die A-Komponente kann dabei auf ca 30 bis 50°C temperiert werden, um die Verarbeitung (Dosierung und Durchmischung) zu optimierenA 2-component piston pump system is required to process such a coating system. The A and B components (pigmented polyol mixture / polyisocyanate) mixed in one or two Keniks mixers in a ratio of approx. 3.5-4 1 (by volume). Harter) are processed by means of a piston pump system in the so-called airless or airmix process. The A component can be tempered to approx. 30 to 50 ° C in order to optimize processing (metering and mixing)
Die Beschichtung wird mittels einer Spritzpistole mit feststehender oder verstellbarer Düse bei einem Materialdruck von 150 bis 250 bar mehrmals im Kreuzgang per Hand oder Roboter aufgetragen, bis eine Schichtdicke von ca 6 bis 8 mm an horizontalen und vertikalen Flachen erreicht ist Das Beschichtungsmateπal kann bei Verwendung aromatischer Di- oder Polyisocyanate (MDI, TDI) ca 3 Minuten verarbeitet werden, die Durchflußmenge betragt dabei ca 1, 1 bis 2,5 1/mιn Aliphatische Di- oder Polyisocyanate (HDI, IPDI, W) erlauben deutlich längere Verarbeitungszeiten - 6 -The coating is applied several times in a cloister by hand or robot using a spray gun with a fixed or adjustable nozzle at a material pressure of 150 to 250 bar, until a layer thickness of approx. 6 to 8 mm is achieved on horizontal and vertical surfaces. The coating material can be aromatic when used Di- or polyisocyanates (MDI, TDI) are processed for about 3 minutes, the flow rate is about 1.1 to 2.5 l / min aliphatic di- or polyisocyanates (HDI, IPDI, W) allow significantly longer processing times - 6 -
Das derart applizierte 2K-PUR-Schalldämmsystem härtet innerhalb von 15 Minuten bei Raumtemperatur und anschließender Trocknung für 45 Minuten bei 80 bis 90°C aus und hat folgende Eigenschaften:The 2-component PUR sound insulation system applied in this way cures within 15 minutes at room temperature and then dries for 45 minutes at 80 to 90 ° C and has the following properties:
Filmeigenschaften:Film properties:
Abriebfestigkeit: Mittels Steinschlag-Multibeschußgerät nach MB bei 0,6 bis 0,8 bar i.O.Abrasion resistance: Using a stone chip multi-shot device according to MB at 0.6 to 0.8 bar ok
Temperaturstabilität: i.O. (1000 Std./140°C)Temperature stability: OK (1000 hrs / 140 ° C)
Reißdehnung: ca. 100 %Elongation at break: approx. 100%
(bei Raumtemperatur) (at room temperature)
Herstellung einer lichtechten 2K-PUR-Dekor-Beschichtung zur SchalldämmungManufacture of a lightfast 2K PUR decor coating for sound insulation
Für die Verarbeitung eines derartigen Beschichtungssystems ist eine 2 -Komponenten- Kolbenpumpenanlage erforderlichA 2-component piston pump system is required to process such a coating system
Die in einem oder zwei Keniks-Mischern im Verhältnis ca. 1,3-1,5 1 (nach Volumen) vermischten A- und B-Komponenten (pigmentiertes Polyolgemisch/Polyisocyanat- Harter) werden mittels einer Kolbenpumpenanlage im sogenannten airless- bzw airmix-Verfahren verarbeitet Die A-Komponente kann dabei auf ca 40 bis 50°C tempertiert werdenThe A and B components (pigmented polyol mixture / polyisocyanate hardener) mixed in one or two Keniks mixers in a ratio of approx. 1.3-1.5 1 (by volume) are pumped into a so-called airless or airmix system. Processed process The A component can be tempered to approx. 40 to 50 ° C
Als Substrate kommen dabei im KTL- Verfahren grundiertes Stahlblech sowie vorgrundierte bzw mit einem geeigneten Holzspachtel vorbehandelte Holzpaneele, die als Fußboden oder Laderaumbeschichtungen in Schienenfahrzeugen, Bussen oder sonstigen Großfahrzeugen füngieren, zum Einsatz Darüber hinaus eignen sich auch sogenannte Kunststoff-Laminate, die zur Verbesserung des Haftvermögens entsprechend vorbereitet werden sollten Hinzu kommen ferner diverse elastomere Nahtabdichtungsmassen sowie gegebenenfalls Untergrund-VerunreingungenThe substrates used in the KTL process are primed sheet steel as well as pre-primed wood panels or wood panels pretreated with a suitable wooden spatula, which function as flooring or loading space coatings in rail vehicles, buses or other large vehicles Adhesion should be prepared accordingly. In addition, there are various elastomeric seam sealing compounds and, if necessary, substrate contamination
Die Beschichtung wird dabei mittels einer Spritzpistole mit feststehender oder verstellbarer Düse bei einem Materialdruck von 150 bis 350 bar mehrmals im Kreuzgang per Hand aufgetragen, bis eine Schichtdicke von ca 2 bis 3 mm an horizontalen und vertikalen Flachen erreicht ist Sie kann ca 15 bis 30 Minuten verarbeitet werden, die Durchflußmenge betragt dabei zwischen 1,1 bis 2,5 1/minThe coating is applied several times in a cloister by hand using a spray gun with a fixed or adjustable nozzle at a material pressure of 150 to 350 bar until a layer thickness of approx. 2 to 3 mm is achieved on horizontal and vertical surfaces. It can take approx. 15 to 30 minutes processed, the flow rate is between 1.1 to 2.5 1 / min
Da es sich um ein aliphatisches und somit lichtechtes 2K-PUR-Beschichtungssystem handelt, entfallt die zusatzliche Applikation einer ungefüllten Klarlackschicht, wie sie für aromatische Beschichtungssysteme üblich istSince it is an aliphatic and therefore lightfast 2K-PUR coating system, there is no additional application of an unfilled clear coat, as is usual for aromatic coating systems
Eine zusätzliche Effektgebung wird erreicht, indem unmittelbar nach dem Auftragen der Dekorbeschichtung auf die noch nicht ausgehartete Oberflache sogenannte Färb- chips oder Flitter von Hand eingestreut oder mittels einer druckluftunterstützten Sprühpistole aufgebracht werden.An additional effect is achieved by so-called dyeing immediately after applying the decorative coating to the surface that has not yet hardened. chips or flakes can be sprinkled in by hand or applied using a compressed air-assisted spray gun.
Filmeigenschaften:Film properties:
Abriebfestigkeit: Mittels Taber Abraser i.O.Abrasion resistance: Using Taber Abraser OK
Temperaturstabilität: i.O.Temperature stability: OK
(100 Std./140°C)(100 hours / 140 ° C)
Reißdehnung: ca. 160 % (bei Raumtemperatur) Elongation at break: approx. 160% (at room temperature)

Claims

-9--9-
PatentanspruchClaim
2K-PUR-Systeme zur Herstellung von schalldämmenden Beschichtungen. 2K-PUR systems for the production of soundproof coatings.
PCT/EP1999/002489 1998-04-28 1999-04-14 The use of dual component pur systems for producing sound-absorbing coatings WO1999055783A1 (en)

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AU38158/99A AU3815899A (en) 1998-04-28 1999-04-14 The use of dual component pur systems for producing sound-absorbing coatings

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DE1998118892 DE19818892A1 (en) 1998-04-28 1998-04-28 Use of low-solvent and solvent-free 2K-PUR systems for the production of soundproof coatings
DE19818892.7 1998-04-28

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WO1999055783A1 true WO1999055783A1 (en) 1999-11-04

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PCT/EP1999/002489 WO1999055783A1 (en) 1998-04-28 1999-04-14 The use of dual component pur systems for producing sound-absorbing coatings

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WO2008002842A1 (en) * 2006-06-28 2008-01-03 Ppg Industries Ohio, Inc. Methods for applying sound dampening and/or aesthetic coatings and articles made thereby
US7658967B2 (en) 2005-08-25 2010-02-09 Pittsburgh Glass Works, Llc Methods for applying sound dampening and/or aesthetic coatings and articles made thereby
WO2020092800A1 (en) 2018-10-31 2020-05-07 H.B. Fuller Company Two component polyurethane system for liquid applied sound deadener

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DE10145237A1 (en) * 2001-09-13 2003-04-03 Bombardier Transp Gmbh Locomotive with side aisles
DE102020132499A1 (en) 2020-12-07 2022-06-09 Scharenberg Industrieanlagen GmbH Soundproof cabin and cabin module

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US4367259A (en) * 1981-07-27 1983-01-04 W. R. Grace & Co. Sound deadening material
EP0393819A2 (en) * 1989-02-22 1990-10-24 Kawasaki Steel Corporation Resin composition for a composite-type vibration-damping material, process for its production and its use
EP0405300A2 (en) * 1989-06-30 1991-01-02 Chisso Corporation Damping viscoelastic resin, damping adhesive and composite made of them and steel plates
US5378733A (en) * 1993-04-09 1995-01-03 Seaward International, Inc. Sound attenuating polymer composites
WO1995026996A1 (en) * 1994-03-30 1995-10-12 Bostik S.A. Sound-absorbing flexible linings and motor vehicle parts containing them

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US4367259A (en) * 1981-07-27 1983-01-04 W. R. Grace & Co. Sound deadening material
EP0393819A2 (en) * 1989-02-22 1990-10-24 Kawasaki Steel Corporation Resin composition for a composite-type vibration-damping material, process for its production and its use
EP0405300A2 (en) * 1989-06-30 1991-01-02 Chisso Corporation Damping viscoelastic resin, damping adhesive and composite made of them and steel plates
US5378733A (en) * 1993-04-09 1995-01-03 Seaward International, Inc. Sound attenuating polymer composites
WO1995026996A1 (en) * 1994-03-30 1995-10-12 Bostik S.A. Sound-absorbing flexible linings and motor vehicle parts containing them

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7658967B2 (en) 2005-08-25 2010-02-09 Pittsburgh Glass Works, Llc Methods for applying sound dampening and/or aesthetic coatings and articles made thereby
WO2008002842A1 (en) * 2006-06-28 2008-01-03 Ppg Industries Ohio, Inc. Methods for applying sound dampening and/or aesthetic coatings and articles made thereby
WO2020092800A1 (en) 2018-10-31 2020-05-07 H.B. Fuller Company Two component polyurethane system for liquid applied sound deadener

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DE19818892A1 (en) 1999-11-04
AU3815899A (en) 1999-11-16

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