DE1044396B - Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion - Google Patents

Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion

Info

Publication number
DE1044396B
DE1044396B DEG21824A DEG0021824A DE1044396B DE 1044396 B DE1044396 B DE 1044396B DE G21824 A DEG21824 A DE G21824A DE G0021824 A DEG0021824 A DE G0021824A DE 1044396 B DE1044396 B DE 1044396B
Authority
DE
Germany
Prior art keywords
dispersion
binder
mineral fibers
production
emulsion
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.)
Pending
Application number
DEG21824A
Other languages
German (de)
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.)
Saint Gobain Isover G+H AG
Original Assignee
Gruenzweig und Hartmann 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 Gruenzweig und Hartmann AG filed Critical Gruenzweig und Hartmann AG
Priority to DEG21824A priority Critical patent/DE1044396B/en
Publication of DE1044396B publication Critical patent/DE1044396B/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209Inorganic fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645Impregnation followed by a solidification process
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21JFIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J7/00Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)

Description

Verfahren zur Herstellung von Formkörpern aus Mineralfasern und einer Bindemittelemulsion oder -dispersion Die Erfindung betrifft die Herstellung von wärme-und schallisolierenden Formkörpern, beispielsweise Matten, Platten, Schalen oder anderen Formstücken, aus Mineralfasern, wie Gesteinsfasern, Glasfasern, Schlackenfasern, und einem Bindemittel.Process for the production of molded articles from mineral fibers and a Binder Emulsion or Dispersion The invention relates to the preparation of heat-insulating and sound-insulating molded bodies, for example mats, plates, dishes or other shaped pieces, made of mineral fibers, such as rock fibers, glass fibers, slag fibers, and a binder.

Zum Binden der Fasern in Erzeugnissen aus Mineralfasern sind schon die verschiedensten Bindemittel, z. B. Lösungen von natürlichen oder synthetischen Harzen in Wasser oder organischen Lösungsmitteln, vorgeschlagen worden. Ein bevorzugt angewandter Aggregatzustand der Bindemittel sind die wäßrigen Kunstharzdispersionen oder -emulsionen. Man hat spezielle Kunstharzdispersionen, deren Einzelteilchen eine sehr kleine Teilchengröße aufweisen, die unter 1 li" vorzugsweise bei 0;1 bis 0,3 #t liegt, entwickelt, damit bei der Imprägnierung der verfilzten Faserformkörper die Dispersion gut in die Fasergebilde eindringen und die Kunstharze sich in den feinen Kapillar- und Hohlräumen ablagern können, ohne daß dabei die feindispergierten Teilchen an der Oberfläche des Mineralfasergebildes abgefiltert werden. Nach der Tränkung oder Imprägnierung der Mineralfaserform-1cörper werden die flüchtigen Bestandteile der Imprägnierlösung oder -dispersion bei höherer Temperatur verdampft, gegebenenfalls die Kunstharze ausgehärtet oder gelatiniert. . heksnnten Verfahren und Bindemittel haben. LIEV@i@rfl@i@"@71@91@A'JRIG'PI 'CIÖG@T.. H R "fi 71,Y7?Tl- laufgeschwindigkeit bedingt eine Vergrößerung des Trockenweges, da eine Temperaturerhöhung im Trockenaggregat, die an und für sich ebenfalls eine Erhöhung der Durchlaufgeschwindigkeit gestatten würde, sich wegen der Abwanderungsgefahr der fein- der Lösung aus, koaguliert die feindispersen Teilchen und fixiert dieselben an die Mineralfasern. Ein Zusatz von wärmekoagulierenden Harzen brachte einen wesentlichen Fortschritt, gleichzeitg aber auch den Nachteil, daß das wasserlösliche, wärmekoagulierend wirkende Kunstharz dem koagulierten hydrophoben-Harz hydrophile Eigenschaften verleiht. Dies hat zur Folge, daß der kunstharzgebundene Mirneralfaserformkörper in feuchter Atmosphäre Wasser aufnimmt. Die Kunstharzbindung der Mineralfasern verliert dann ihre Festigkeit, und der Formkörper kann sich spalten.To bind the fibers in products made from mineral fibers, a wide variety of binders, e.g. B. solutions of natural or synthetic resins in water or organic solvents have been proposed. A preferred aggregate state of the binders is the aqueous synthetic resin dispersions or emulsions. Special synthetic resin dispersions have been developed, the individual particles of which have a very small particle size, which is less than 1 ″, preferably 0.1 to 0.3 t, so that the dispersion penetrates well into the fiber structure and the synthetic resins during the impregnation of the felted molded fiber bodies can be deposited in the fine capillary and hollow spaces without the finely dispersed particles being filtered off on the surface of the mineral fiber structure Hardened or gelatinized synthetic resins. . Known processes and binders. LIEV @ i @ rfl @ i @ "@ 71 @ 91 @ A'JRIG'PI 'CIÖG @ T .. HR" fi 71, Y7? Tl- running speed requires an increase in the drying path, since an increase in temperature in the drying unit, which in and of itself would also allow an increase in the throughput speed, would result in the risk of the fine of the solution, the finely dispersed particles coagulate and fix them to the mineral fibers. The addition of heat-coagulating resins brought a significant advance, but at the same time also had the disadvantage that the water-soluble, heat-coagulating synthetic resin imparts hydrophilic properties to the coagulated hydrophobic resin. As a result, the synthetic resin-bonded Mirneral fiber molding absorbs water in a moist atmosphere. The synthetic resin bond of the mineral fibers then loses its strength and the molded body can split.

Es wurde nun überraschenderweise gefunden, daß sich die vorerwähnten Nachteile vermeiden lassen, wenn man als Tränk- oder Imprägnierungsmittel solche Kunstharzdispersionen bzw. -emulsionen verwendet, deren Teilchengröße zwischen 1 und 3 [, liegen. Die Größe dieserTeilchen ist einerseits noch so klein, daß bei der Tränkung bzw. Imprägnierung der verfilzten Mineralwolle kein Abfiltrieren stattfindet, andererseits sind die Teilchen aber groß genug, daß beim Verdampfen der flüchtigen Bestandteile die Viskosität der Kunstharzdispersionen so steil ansteigt, daß die Teilchen durch die auftretenden Kapillarkräfte nicht mehr abwandern können und ohne eine vorausgehende Koagulation an Ort und Stelle fixiert werden. Man kann die imprägnierten Mineralwolle-Gebilde ohne Vortrocknung sofort sehr hohen Trockentemperaturen aussetzen. Dies bedeutet, daß die Trockenanlagen sehr klein gehalten werden können bzw. die Durchlaufgeschwindigkeit stark erhöht werden kann. Dies stellt einen beachtlichen wirtschaftlichen Fortschritt dar.It has now surprisingly been found that the aforementioned Avoid disadvantages if you use such as a soaking or impregnating agent Synthetic resin dispersions or emulsions are used whose particle size is between 1 and 3 [, lie. On the one hand, the size of these particles is still so small that at the impregnation or impregnation of the felted mineral wool does not filter off, On the other hand, the particles are large enough that the volatile ones evaporate Components the viscosity of the synthetic resin dispersions increases so steeply that the Particles can no longer migrate due to the occurring capillary forces and without a previous coagulation must be fixed in place. You can get the impregnated Immediately expose mineral wool structures to very high drying temperatures without pre-drying. This means that the drying systems can be kept very small or the Throughput speed can be increased greatly. This represents a considerable one economic progress.

Die Kunstharzdispersionen von 1 bis 3 #t Teilchengröße können noch Zusätze von gelösten synthetischen oder natürlichen Harzen enthalten, ebenfalls Weichmacher oder Schmälzöle, ohne daß hierdurch der Viskositätsanstieg erniedrigt wird. Die Dispersionen können ferner Schutzkolloide und Stabilisatoren enthalten.The synthetic resin dispersions from 1 to 3 #t particle size can still Contain additives of dissolved synthetic or natural resins, too Plasticizers or lubricating oils without reducing the increase in viscosity will. The dispersions can also contain protective colloids and stabilizers.

Claims (5)

hATHNTANS1'Y,UCHE: 1. Verfahren zur Herstellung von Formkörpern aus Mineralfasern und einer Bindemittelemulsion oder -dispersion, dadurch gekennzeichnet, daß man die verfilzten Mineralfaserbahnen oder Formkörper mit einer Bindemitteldispersion bzw. -emulsion tränkt oder imprägniert, deren Teilchengröße 1 bis 3 #t beträgt, und austrocknet. hATHNTANS1'Y, UCHE: 1. Process for the production of moldings from Mineral fibers and a binder emulsion or dispersion, characterized in that that the felted mineral fiber webs or moldings with a binder dispersion or emulsion soaks or impregnates, the particle size of which is 1 to 3 #t, and dries up. 2. Verfahren zur Herstellung von Formkörpern aus Mineralfaslern und einer Bindemittelemulsion oder -dispersion nach Anspruch 1, dadurch gekennzeichnet, daß man die getränkten oder imprägnierten Mineralfasergebilde ohne Vortrocknung solchen Trocknungstemperaturen aussetzt, die wesentlich über dem Siedepunkt der zu verdampfenden flüssigen Dispersionsmittel liegen. 2. Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion according to claim 1, characterized in that that the soaked or impregnated mineral fiber structures without pre-drying exposed to such drying temperatures, which are substantially above the boiling point of the to be evaporated liquid dispersant lie. 3. Verfahren zur Herstellung von Formkörpern aus Mineralfasern und einer Bindemittelemulsion oder -dispersion nach Anspruch 1, dadurch gekennzeichnet, daß das Dispersionsmittel gelöste Harze enthält. 3. Method of manufacture of molded bodies made of mineral fibers and a binder emulsion or dispersion according to claim 1, characterized in that the dispersant is dissolved resins contains. 4. Verfahren zur Herstellung von Formkörpern aus Mineralfasern und einer Bindemittelemulsion oder -dispersion nadh Anspruch 1, dadurch gekennzeichnet, daß die Bindemitteldispersion Weichmacher oder Schmälzöle enthält. 4. Process for the production of molded articles from mineral fibers and a Binder emulsion or dispersion according to Claim 1, characterized in that the binder dispersion contains plasticizers or lubricating oils. 5. Verfahren zur Herstellung von Formkörpern aus Mineralfasern und einer Bindemittelemulsion oder -dispersion nach Anspruch 1, dadurch gekennzeichnet, daß die Bindemitteldispersion Schutzkolloide und/oder Stabilisierungsmittel enthält.5. Procedure for Production of molded bodies from mineral fibers and a binder emulsion or dispersion according to claim 1, characterized in that the binder dispersion Contains protective colloids and / or stabilizers.
DEG21824A 1957-04-04 1957-04-04 Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion Pending DE1044396B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG21824A DE1044396B (en) 1957-04-04 1957-04-04 Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG21824A DE1044396B (en) 1957-04-04 1957-04-04 Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion

Publications (1)

Publication Number Publication Date
DE1044396B true DE1044396B (en) 1958-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEG21824A Pending DE1044396B (en) 1957-04-04 1957-04-04 Process for the production of molded articles from mineral fibers and a binder emulsion or dispersion

Country Status (1)

Country Link
DE (1) DE1044396B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330389A1 (en) * 1993-09-08 1995-03-09 Schaeffler Waelzlager Kg Damping material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330389A1 (en) * 1993-09-08 1995-03-09 Schaeffler Waelzlager Kg Damping material

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