DE4417231A1 - Biologically degradable mineral fibre compsn. - Google Patents

Biologically degradable mineral fibre compsn.

Info

Publication number
DE4417231A1
DE4417231A1 DE4417231A DE4417231A DE4417231A1 DE 4417231 A1 DE4417231 A1 DE 4417231A1 DE 4417231 A DE4417231 A DE 4417231A DE 4417231 A DE4417231 A DE 4417231A DE 4417231 A1 DE4417231 A1 DE 4417231A1
Authority
DE
Germany
Prior art keywords
mineral
mineral fibre
biologically degradable
na2o
sio2
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.)
Granted
Application number
DE4417231A
Other languages
German (de)
Other versions
DE4417231C3 (en
DE4417231C2 (en
Inventor
Peter Lohe
Wolfgang Dr Holstein
Wolfgang Schwab
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 DE4417231A priority Critical patent/DE4417231C3/en
Priority to IS4283A priority patent/IS4283A/en
Priority to CZ953120A priority patent/CZ312095A3/en
Priority to JP7529367A priority patent/JPH08511761A/en
Priority to CA002162890A priority patent/CA2162890A1/en
Priority to ZA953955A priority patent/ZA953955B/en
Priority to BR9506227A priority patent/BR9506227A/en
Priority to CN95190437A priority patent/CN1128529A/en
Priority to KR1019960700200A priority patent/KR960703815A/en
Priority to EP95920813A priority patent/EP0714381A1/en
Priority to SK1496-95A priority patent/SK149695A3/en
Priority to AU26129/95A priority patent/AU2612995A/en
Priority to PCT/EP1995/001843 priority patent/WO1995031411A1/en
Priority to HU9600085A priority patent/HU9600085D0/en
Priority to PL95312575A priority patent/PL312575A1/en
Priority to FI955417A priority patent/FI955417A/en
Publication of DE4417231A1 publication Critical patent/DE4417231A1/en
Priority to NO960190A priority patent/NO960190D0/en
Application granted granted Critical
Publication of DE4417231C2 publication Critical patent/DE4417231C2/en
Publication of DE4417231C3 publication Critical patent/DE4417231C3/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C13/00—Fibre or filament compositions
    • C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C2213/00—Glass fibres or filaments
    • C03C2213/02—Biodegradable glass fibres

Abstract

Mineral fibre compsn. comprises (in wt.%): 50-65 SiO2, less than 2 Al2O3, 15-30 CaO, 3-15 MgO, 8-20 Na2O, 0-2 K2O, 0-10 B2O3, and 0-5 TiO2, Fe2O3, BaO, MnO and P2O5.

Description

Die Erfindung bezieht sich auf eine Mineralfaserzu­ sammensetzung, die biologisch abbaubar ist.The invention relates to a mineral fiber composition that is biodegradable.

Es sind im Stande der Technik einige Mineralfaser­ zusammensetzungen beschrieben, von denen angegeben wird, daß sie biologisch abbaubar sind.There are some mineral fiber in the art described compositions of which specified is that they are biodegradable.

Die biologische Abbaubarkeit von Mineralfaserzusam­ mensetzungen ist insofern von großer Bedeutung, weil verschiedene Untersuchungen darauf hinweisen, daß einige Mineralfasern mit sehr kleinen Durchmessern im Bereich von kleiner 3 µm im Verdacht stehen, kanzero­ gen zu sein, biologisch abbaubare Mineralfasern solcher Dimensionen aber keine Kanzerogenität zeigen. The biodegradability of Mineralfaserzusam Compositions is of great importance insofar as various investigations indicate that some mineral fibers with very small diameters in the Range of less than 3 microns are suspected, kanzero to be, biodegradable mineral fibers but show no carcinogenicity of such dimensions.  

Neben der biologischen Abbaubarkeit sind jedoch auch die mechanischen und thermischen Eigenschaften der Mineralfasern bzw. der daraus hergestellten Produkte, sowie die Verarbeitbarkeit der Mineralfaserzusammen­ setzung von ausschlaggebender Bedeutung. Mineral­ fasern werden beispielsweise in großem Umfang zu Dämmzwecken eingesetzt. Insbesondere für diese Ver­ wendung im Industriesektor ist eine ausreichende Temperaturbeständigkeit der Mineralfasern notwendig.In addition to biodegradability, however, are also the mechanical and thermal properties of the Mineral fibers or the products made from them, and the processability of the mineral fiber together of crucial importance. mineral For example, fibers are becoming widely used Insulation purposes used. Especially for this Ver in the industrial sector is sufficient Temperature resistance of mineral fibers necessary.

Ferner muß die Mineralfaserzusammensetzung eine Ver­ arbeitbarkeit nach bekannten Verfahren zur Herstel­ lung von Mineralfasern mit kleinem Durchmesser, wie beispielsweise dem Düsenblasverfahren, ermöglichen.Furthermore, the mineral fiber composition must have a Ver Workability by known methods for manufacturing mineral fibers of small diameter, such as for example, the nozzle blowing method.

Aufgabe der Erfindung ist die Schaffung einer neuen Mineralfaserzusammensetzung, die sich durch biologi­ sche Abbaubarkeit auszeichnet, die gute Temperaturbe­ ständigkeit aufweist und sich gut verarbeiten läßt.The object of the invention is the creation of a new Mineral fiber composition characterized by biologi degradability is distinguished, the good Temperaturbe has durability and is easy to process.

Der Erfindung liegt die Erkenntnis zugrunde, daß diese Aufgabe durch eine Mineralfaserzusammensetzung gelöst werden kann, die im wesentlichen aus Silicium­ dioxid, Calciumoxid, Magnesiumoxid und Natriumoxid aufgebaut ist.The invention is based on the finding that this task through a mineral fiber composition can be solved, which consists essentially of silicon dioxide, calcium oxide, magnesium oxide and sodium oxide is constructed.

Es hat sich gezeigt, daß eine solche Mineralfaserzu­ sammensetzung die Kombination der notwendigen Eigen­ schaften, nämlich biologische Abbaubarkeit, Tempera­ turbeständigkeit sowie gute Verarbeitbarkeit erfüllt. It has been found that such a mineral fiber zuzu composition of the necessary self properties, namely biodegradability, tempera turbidity and good processability.  

Gegenstand der Erfindung ist eine Mineralfaserzusam­ mensetzung, die biologisch abbaubar ist, die ge­ kennzeichnet ist durch folgende Bestandteile in Ge­ wichtsprozent:The invention is a Mineralfaserzusam composition that is biodegradable, the ge is characterized by the following constituents in Ge weight percent:

SiO₂|50 bis 65SiO₂ | 50 to 65 Al₂O₃Al₂O₃ weniger als 2less than 2 CaOCaO 15 bis 3015 to 30 MgOMgO 3 bis 153 to 15 Na₂ONa₂O 8 bis 208 to 20 K₂OK₂O 0 bis 20 to 2 B₂O₃B₂O₃ 0 bis 100 to 10 TiO₂, Fe₂O₃, BaO, MnO, P₂O₅TiO₂, Fe₂O₃, BaO, MnO, P₂O₅ 0 bis 5.0 to 5.

Die erfindungsgemäßen Mineralfaserzusammensetzungen sind nach dem Düsenblasverfahren verziehbar. Die erhaltenen Fasern haben gute Temperaturbeständigkeit. Überraschenderweise zeigen die Mineralfaserzusammen­ setzungen biologische Abbaubarkeit.The mineral fiber compositions according to the invention are malleable after the nozzle blowing process. The obtained fibers have good temperature resistance. Surprisingly, the mineral fiber together Biodegradability.

Vorzugsweise weisen die erfindungsgemäßen Mineral­ faserzusammensetzungen folgende Bestandteile in Gewichtsprozent auf:Preferably, the mineral of the invention fiber compositions have the following ingredients Weight percent on:

SiO₂|55 bis 60SiO₂ | 55 to 60 Al₂O₃Al₂O₃ weniger als 1,5less than 1.5 CaOCaO 15 bis 2515 to 25 MgOMgO 6 bis 126 to 12 Na₂ONa₂O 9 bis 159 to 15 K₂OK₂O weniger als 2less than 2 B₂O₃B₂O₃ 0 bis 80 to 8 TiO₂, Fe₂O₃, BaO, MnO, P₂O₅TiO₂, Fe₂O₃, BaO, MnO, P₂O₅ 0 bis 5.0 to 5.

Zur Beurteilung der biologischen Abbaubarkeit wurde die Standardgrießprobe der Deutschen Glasgesell­ schaft herangezogen. Dies ist eine einfach durch­ führbare Methode und gibt ein hinreichendes Maß für die biologische Abbaubarkeit. Die Methode ist beschrieben in L. Springer, "Laboratoriumsbuch für die Glasindustrie", 3. Aufl. 1950, Halle/S: W. Knapp Verlag.To assess the biodegradability was the standard semolina sample of the Deutsche Glasgesell used. This is an easy through feasible method and gives a sufficient degree for biodegradability. The method is described in L. Springer, "Laboratory book for the glass industry ", 3rd ed. 1950, Halle / S: W. Knapp Publishing company.

Das Temperaturverhalten der Mineralfasern wurde mit der Schwedischen Methode ermittelt. Bei dieser Methode wird ein Silitrohrofen mit liegendem, beidseitig offenem Arbeitsrohr mit einer Länge von 350 mm und einem Innendurchmesser von 27 mm verwen­ det. Im Ofenzentrum ist ein keramisches Auflageplätt­ chen mit 30 × 20 × 3 mm zum Aufstellen des Prüfkör­ pers. Der Prüfkörper hat Abmessungen von 12 × 12 × 12 mm oder 12 mm ø × 12 mm Höhe. Die Rohdichte beträgt im Normalfall 100 kg/m³. Die Temperatursteigerung beträgt 5 K/min. Die Ermittlung der Prüfkörper­ höhenänderung erfolgt laufend mit einer Ablese­ optik.The temperature behavior of the mineral fibers was with the Swedish method. At this Method is a Silitrohrofen with lying, Both sides open working tube with a length of 350 mm and an inner diameter of 27 mm verwen det. In the kiln center is a ceramic platen with 30 × 20 × 3 mm to set up the Prüfkör pers. The test specimen has dimensions of 12 × 12 × 12 mm or 12 mm ø × 12 mm height. The bulk density is Normally 100 kg / m³. The temperature increase is 5 K / min. The determination of the test specimens Height change is carried out continuously with a reading optics.

Die Erfindung wird nachstehend anhand von Beispielen näher beschrieben.The invention will be described below by way of examples described in more detail.

Beispiel 1example 1

Es wurde eine Mineralwolle mit folgender Zusammensetzung in Gewichtsprozent produziert:It was a mineral wool with the following Composition produced in weight percent:

SiO₂: 56
Al₂O₃: 0,5
CaO: 20
MgO: 10
Na₂O: 10
B₂O₃: 2,7SiO₂: 56
Al₂O₃: 0.5
CaO: 20
MgO: 10
Na₂O: 10
B₂O₃: 2.7

Diese Zusammensetzung konnte nach dem Düsenblas­ verfahren bei einer Verziehtemperatur von 1330°C zu Mineralfasern mit einem mittleren Durchmesser von 1,8 µm gut verarbeitet werden.This composition could after the jet proceed at a distortion temperature of 1330 ° C. Mineral fibers with a mean diameter of 1.8 microns are well processed.

Eine Untersuchung gemäß der Standardgrießprobe der Deutschen Glasgesellschaft ergab einen Wert von 35 mg/kg und somit einen Wert für hohe biologische Abbaubarkeit.An examination according to the standard semolina test of the German glass company gave a value of 35 mg / kg and thus a value for high biological Degradability.

Die Ermittlung des Temperaturverhaltens gemäß der Schwedischen Methode ergab eine Temperaturbeständig­ keit bei 5% Höhenminderung von 620°C, was aus dem zugehörigen in der einzigen Zeichnung bespielhaft dargestellten Schaubild deutlich zu erkennen ist. The determination of the temperature behavior according to the Swedish method yielded a temperature resistant at 5% height reduction of 620 ° C, resulting from the associated in the single drawing clearly shown diagram can be seen.  

Beispiel 2Example 2

Es wurde eine Mineralwolle mit folgender Zusammen­ setzung in Gewichtsprozent produziert:It was a mineral wool with the following together produced in percent by weight:

SiO₂: 56
Al₂O₃: 1,0
CaO: 21
MgO: 11
Na₂O: 11SiO₂: 56
Al₂O₃: 1.0
CaO: 21
MgO: 11
Na₂O: 11

Diese Zusammensetzung konnte nach dem Düsenblas­ verfahren bei einer Verziehtemperatur von 1310°C zu Mineralfasern mit einem mittleren Durchmesser von 1,7 µm gut verarbeitet werden.This composition could after the jet proceed at a distortion temperature of 1310 ° C. Mineral fibers with a mean diameter of 1.7 μm are processed well.

Eine Untersuchung gemäß der Standardgrießprobe der Deutschen Glasgesellschaft ergab einen Wert von 37 mg/kg und somit einen Wert für hohe biologische Abbaubarkeit.An examination according to the standard semolina test of the German glass company gave a value of 37 mg / kg and thus a value for high biological Degradability.

Die Ermittlung des Temperaturverhaltens gemäß der Schwedischen Methode ergab eine Temperaturbeständig­ keit bei 5% Höhenminderung von 600°C.The determination of the temperature behavior according to the Swedish method yielded a temperature resistant at 5% height reduction of 600 ° C.

Claims (2)

1. Mineralfaserzusammensetzung, die biologisch abbaubar ist, gekennzeichnet durch folgende Bestandteile in Gewichtsprozent: SiO₂|50 bis 65 Al₂O₃ weniger als 2 CaO 15 bis 30 MgO 3 bis 15 Na₂O 8 bis 20 K₂O 0 bis 2 B₂O₃ 0 bis 10 TiO₂, Fe₂O₃, BaO, MnO, P₂O₅ 0 bis 5.
A mineral fiber composition which is biodegradable, characterized by the following components in weight percent: SiO₂ | 50 to 65 Al₂O₃ less than 2 CaO 15 to 30 MgO 3 to 15 Na₂O 8 to 20 K₂O 0 to 2 B₂O₃ 0 to 10 TiO₂, Fe₂O₃, BaO, MnO, P₂O₅ 0 to 5.
2. Mineralfaserzusammensetzung nach Anspruch 1, gekenn­ zeichnet durch folgende Bestandteile in Gewichts­ prozent: SiO₂|55 bis 60 Al₂O₃ weniger als 1,5 CaO 15 bis 25 MgO 6 bis 12 Na₂O 9 bis 15 K₂O weniger als 2 B₂O₃ 0 bis 8 TiO₂, Fe₂O₃, BaO, MnO, P₂O₅ 0 bis 5.
2. mineral fiber composition according to claim 1, characterized marked by the following components in weight percent: SiO₂ | 55 to 60 Al₂O₃ less than 1.5 CaO 15 to 25 MgO 6 to 12 Na₂O 9 to 15 K₂O less than 2 B₂O₃ 0 to 8 TiO₂, Fe₂O₃, BaO, MnO, P₂O₅ 0 to 5.
DE4417231A 1994-05-17 1994-05-17 Use of a composition as a material for biodegradable mineral fibers Expired - Fee Related DE4417231C3 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
DE4417231A DE4417231C3 (en) 1994-05-17 1994-05-17 Use of a composition as a material for biodegradable mineral fibers
IS4283A IS4283A (en) 1994-05-17 1995-05-08 Glass wool composition
HU9600085A HU9600085D0 (en) 1994-05-17 1995-05-16 A mineral-fiber composition
CA002162890A CA2162890A1 (en) 1994-05-17 1995-05-16 A mineral-fiber composition
ZA953955A ZA953955B (en) 1994-05-17 1995-05-16 A mineral/fiber composition
BR9506227A BR9506227A (en) 1994-05-17 1995-05-16 Mineral fiber composition
CN95190437A CN1128529A (en) 1994-05-17 1995-05-16 A mineral-fiber composition
KR1019960700200A KR960703815A (en) 1994-05-17 1995-05-16 A Mineral-Fiber Composition
EP95920813A EP0714381A1 (en) 1994-05-17 1995-05-16 A mineral-fiber composition
SK1496-95A SK149695A3 (en) 1994-05-17 1995-05-16 Mixture for production of mineral fibers
CZ953120A CZ312095A3 (en) 1994-05-17 1995-05-16 Composition for producing mineral fibers
PCT/EP1995/001843 WO1995031411A1 (en) 1994-05-17 1995-05-16 A mineral-fiber composition
JP7529367A JPH08511761A (en) 1994-05-17 1995-05-16 Mineral fiber composition
PL95312575A PL312575A1 (en) 1994-05-17 1995-05-16 Mineral fibre composition
AU26129/95A AU2612995A (en) 1994-05-17 1995-05-16 A mineral-fiber composition
FI955417A FI955417A (en) 1994-05-17 1995-11-10 Mineral Fiber Composition
NO960190A NO960190D0 (en) 1994-05-17 1996-01-16 Mineral Fiber Blend

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4417231A DE4417231C3 (en) 1994-05-17 1994-05-17 Use of a composition as a material for biodegradable mineral fibers

Publications (3)

Publication Number Publication Date
DE4417231A1 true DE4417231A1 (en) 1995-11-23
DE4417231C2 DE4417231C2 (en) 1996-12-05
DE4417231C3 DE4417231C3 (en) 2000-06-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE4417231A Expired - Fee Related DE4417231C3 (en) 1994-05-17 1994-05-17 Use of a composition as a material for biodegradable mineral fibers

Country Status (2)

Country Link
DE (1) DE4417231C3 (en)
ZA (1) ZA953955B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4427368A1 (en) * 1994-08-02 1996-02-08 Gruenzweig & Hartmann Mineral fibre compsn. used as insulating material
DE19503170A1 (en) * 1995-02-01 1996-08-08 Gruenzweig & Hartmann Biologically degradable, mineral fibre compsn.
US5932347A (en) * 1996-10-31 1999-08-03 Owens Corning Fiberglas Technology, Inc. Mineral fiber compositions
US6077798A (en) * 1996-08-02 2000-06-20 Owens Corning Fiberglas Technology, Inc. Biosoluble, high temperature mineral wools
US6861381B1 (en) 1999-09-10 2005-03-01 The Morgan Crucible Company Plc High temperature resistant saline soluble fibres
US6987076B1 (en) 1998-09-15 2006-01-17 The Morgan Crucible Company Plc Bonded fibrous materials
US7651965B2 (en) 2002-01-04 2010-01-26 The Morgan Crucible Company Plc Saline soluble inorganic fibres
US7875566B2 (en) 2004-11-01 2011-01-25 The Morgan Crucible Company Plc Modification of alkaline earth silicate fibres

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FR1149289A (en) * 1956-05-11 1957-12-23 Saint Gobain Webs, sheets or shaped pieces of glass fibers or similar mineral materials, agglomerated, and process for their manufacture
FR1421742A (en) * 1963-12-27 1965-12-17 United States Gypsum Co Improvements to compositions and processes for the manufacture of glass and glass fibers
US3274006A (en) * 1959-07-23 1966-09-20 Owens Corning Fiberglass Corp Borosilicate glass melting method
GB1370324A (en) * 1971-03-18 1974-10-16 Rogers P S Glass products

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US5055428A (en) * 1990-09-26 1991-10-08 Owens-Corning Fiberglass Corporation Glass fiber compositions
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Publication number Priority date Publication date Assignee Title
FR1149289A (en) * 1956-05-11 1957-12-23 Saint Gobain Webs, sheets or shaped pieces of glass fibers or similar mineral materials, agglomerated, and process for their manufacture
US3274006A (en) * 1959-07-23 1966-09-20 Owens Corning Fiberglass Corp Borosilicate glass melting method
FR1421742A (en) * 1963-12-27 1965-12-17 United States Gypsum Co Improvements to compositions and processes for the manufacture of glass and glass fibers
GB1370324A (en) * 1971-03-18 1974-10-16 Rogers P S Glass products

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4427368A1 (en) * 1994-08-02 1996-02-08 Gruenzweig & Hartmann Mineral fibre compsn. used as insulating material
DE19503170A1 (en) * 1995-02-01 1996-08-08 Gruenzweig & Hartmann Biologically degradable, mineral fibre compsn.
US6077798A (en) * 1996-08-02 2000-06-20 Owens Corning Fiberglas Technology, Inc. Biosoluble, high temperature mineral wools
US5932347A (en) * 1996-10-31 1999-08-03 Owens Corning Fiberglas Technology, Inc. Mineral fiber compositions
US6987076B1 (en) 1998-09-15 2006-01-17 The Morgan Crucible Company Plc Bonded fibrous materials
US6861381B1 (en) 1999-09-10 2005-03-01 The Morgan Crucible Company Plc High temperature resistant saline soluble fibres
US7651965B2 (en) 2002-01-04 2010-01-26 The Morgan Crucible Company Plc Saline soluble inorganic fibres
US7875566B2 (en) 2004-11-01 2011-01-25 The Morgan Crucible Company Plc Modification of alkaline earth silicate fibres

Also Published As

Publication number Publication date
DE4417231C3 (en) 2000-06-29
ZA953955B (en) 1996-01-19
DE4417231C2 (en) 1996-12-05

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