DE3116005A1 - Process for fibrillating cut and split fibres made of polymer - Google Patents

Process for fibrillating cut and split fibres made of polymer

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Publication number
DE3116005A1
DE3116005A1 DE19813116005 DE3116005A DE3116005A1 DE 3116005 A1 DE3116005 A1 DE 3116005A1 DE 19813116005 DE19813116005 DE 19813116005 DE 3116005 A DE3116005 A DE 3116005A DE 3116005 A1 DE3116005 A1 DE 3116005A1
Authority
DE
Germany
Prior art keywords
fibers
substance
ground
water suspension
split
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.)
Ceased
Application number
DE19813116005
Other languages
German (de)
Inventor
Udo Henniges
Walter Dr.-Ing. Ohnemüller
Winfried 1000 Berlin Schlitt
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.)
Ametex AG
Original Assignee
Ametex 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 Ametex AG filed Critical Ametex AG
Priority to DE19813116005 priority Critical patent/DE3116005A1/en
Publication of DE3116005A1 publication Critical patent/DE3116005A1/en
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
    • D21H5/1236—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of fibres which have been treated to render them suitable for sheet formation, e.g. fibrillatable fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • C04B16/06—Macromolecular compounds fibrous
    • C04B16/0608—Fibrilles, e.g. fibrillated films
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/18—Highly hydrated, swollen or fibrillatable fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1225—Fibre length

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

The invention relates to a process for fibrillating cut and split fibres made of a polymer, for example from the group of the PVC and PAN fibres. To achieve a fibrillation result which will confer properties on the fibres which will make them suitable for use as aggregates for building materials consisting essentially of hydraulic binders or as additives for the production of paper and board and also fibre webs, it is proposed to grind the fibres having a length below 40 mm in a suspension in water using a stone-equipped grinding machine.

Description

Die Erfindung betrifft ein Verfahren zum Fibrillieren vonThe invention relates to a method for fibrillation of

Spinn- und Splitfasern aus Kunststoff, beispielsweise aus der Gruppe der PVA- und PAN-Fasern.Spun and split fibers made of plastic, for example from the group the PVA and PAN fibers.

Im Laufe der letzten Jahre sind in der Industrie für faserverstärkte Zementprodukte in stärker werdendem Maße Anstrengungen gemacht worden, billige neue Fasern für die Zementverstärkung zu finden, welche sich eignen, auf den bisher verwendeten Produktionsanlagen der Asbestzementindustrie verarbeitet zu werden.Over the past few years they are in the fiber reinforced industry Increasing efforts have been made to cheap new cement products To find fibers for cement reinforcement that are suitable on top of those previously used Production plants of the asbestos-cement industry to be processed.

Die chemischen und physikalischen Anforderungen, die an Fasern gestellt werden, die sich zur Zementverstärkung eignen, sind äußerst hoch, weil die Fasern möglichst einem Vergleich mit der Asbestfaser standhalten sollen, und zwar insbesondere im Hinblick auf deren hohe Affinität zum Zement.The chemical and physical demands placed on fibers which are suitable for cement reinforcement are extremely high because the fibers should be able to withstand a comparison with the asbestos fiber, in particular in view of their high affinity for cement.

Es ist bekannt, daß eine der billigsten Arten, um Fasern herzustellen, Produktionsverfahren nach der Film-Faser-Technologie sind. Ausgehend von einem Film werden Fasern durch einen mechanischen Fibrillierungsvorgang hergestellt.It is known that one of the cheapest ways to make fibers is Production process according to the film fiber technology are. Based on a film fibers are made by a mechanical fibrillation process.

Eine Übersicht über Film-Faser-Technologie ist ist in einer Arbeit von H. Krässig, J. Polym. Sc. Macromolecular Review, Vol. 12, S. 321 - 410 (1977) gegeben. Durch eine Optimierung bei der Filmherstellung in bezug auf mechanische Festigkeit können nach der Fibrillierung fasrige Materialien erhalten werden, die sich textilen Fasern hinsichtlich Bruchdehnung und Festigkeit in der Verwendung als Verstärkungsfasern überlegen zeigen. Einer der preislich gUnstigsten thermoplastischen Kunststoffe stellt z.Z. Polypropylen dar. Ausgehend von Polypropylen sind dann auch schon Split-Fasern im Stadium der industriellen Herstellung. Der Einsatz von Polypropylen-Split-Fasern zur Verstärkung von Mörtel wurde schon von Shell Oi beschrieben (US-PS 3,591,395). zu,595 ) . Der Einsatz von Polypropylen-Split-Fasern zur Herstellung von Faserzement nach der Technologie der Entwässerungsverfahren ist ebenfalls bekannt (DE-AS 28 19 794).An overview of film-fiber technology is in a work by H. Krässig, J. Polym. Sc. Macromolecular Review, Vol. 12, pp. 321-410 (1977) given. By optimizing the film production with regard to mechanical Strength can be obtained after fibrillation fibrous materials that textile fibers in terms of elongation at break and strength in use show superior as reinforcing fibers. One of the most affordable thermoplastic Kunststoffe currently represents Polypropylene. Starting from polypropylene are then also split fibers at the stage of industrial production. The use of polypropylene split fibers for reinforcing mortar has already been developed by Shell Oi (U.S. Patent 3,591,395). to, 595). The use of polypropylene split fibers for the production of fiber cement using the technology of drainage processes is also known (DE-AS 28 19 794).

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art anzugeben, mit dem eine Fibrillierung von Spinn- und Splitfasern aus Kunststoff erzielt wird, die den behandelten Fasern Eigenschaften verleiht, sie als Zuschlagstoffe für im wesentlichen aus hydraulischen Bindemitteln bestehenden Baustoffen oder als Zusätze für die Herstellung von Papier und Karton sowie für Faservliese verwenden zu können.The invention is based on the object of a method of the above specified type, with which a fibrillation of staple and split fibers from Plastic is obtained, which gives properties to the treated fibers, them as aggregates for consisting essentially of hydraulic binders Building materials or as additives for the production of paper and cardboard as well as for To be able to use nonwovens.

Diese Aufgabe wird erfindungsgemäß durch das im Kennzeichen des Patentanspruchs 1 angegebene Merkmal gelöst.According to the invention, this object is achieved by the characterizing part of the patent claim 1 specified feature solved.

Die weitere Ausbildung des Verfahrens geht aus den Unteransprüchen hervor.The further development of the method is based on the subclaims emerged.

Die mit der Erfindung erzielten Vorteile bestehen im wesentlichen darin, daß aufgrund der Mahlung der Kunststoffasern mittels steinbestückter Mahlmaschine eine nahezu optimale Fibrillierung erreicht wird. Daraus folgt ein besseres Anbringen der Fasern an hydraulischen Bindemitteln und eine bessere Verfilzung der Fasern bei homogener Verteilung untereinander. Es ergibt sich daraus bei der Herstellung von Baustoffen, beispielsweise nach dem bekannten Hatschek-Verfahren, eine gute Vliesbildung und in der Folge davon eine bessere Anlage des Bindemittels an die Fasern.The advantages achieved with the invention consist essentially in that due to the grinding of the synthetic fibers by means of a stone-tipped grinding machine an almost optimal fibrillation is achieved. This results in a better attachment of the fibers in hydraulic binders and better felting of the fibers with homogeneous distribution among each other. It arises from this during manufacture of building materials, for example according to the well-known Hatschek process, a good one Fleece formation and, as a result, a better attachment of the binder to the Fibers.

Mit dem erfindungsgmeäßen Verfahren ist es grundsätzlich möglich, eine Reihe von Spinnfasern in ihrer Geometrie so zu beeinflussen, daß sie auch für andere Anwendungsbereiche, z.B.With the method according to the invention, it is basically possible to influence the geometry of a number of staple fibers in such a way that that they can also be used for other areas of application, e.g.

bei der Verarbeitung von Vliesen, Garnen, Geweben, z.B. für Filtermedien oder hochreißfest ausgerüstete Tücher eine Verbesserung erfahren.when processing fleeces, yarns, fabrics, e.g. for filter media or highly tear-resistant cloths experience an improvement.

Zur Erläuterung der Erfindung sind nachstehend Beispiele angegeben.Examples are given below to illustrate the invention.

Beispiel 1: Eine Mischung von Kunststoffasern vom Typ PVA und Sulfat-Zellstoff im Verhältnis 1:1 und einer Stoffdichte von 2% wurde in einer basaltbestückten Mahlmaschine im Umlaufverfahren gemahlen. Abb. IA zeigt die Fasermischung vor der Mahlung, Abb. IB zeigt die Fasermischung nach 16 Minuten Mahldauer.Example 1: A mixture of synthetic fibers of the PVA type and sulphate pulp in a ratio of 1: 1 and a stock consistency of 2% was in a basalt-tipped grinding machine milled in a circulation process. Fig.IA shows the fiber mixture before grinding, Fig. IB shows the fiber blend after 16 minutes of milling time.

Beispiel 2: Eine Mischung von Kunststoffasern vom Typ PAN und Sulfat-Zellstoff im Verhältnis 1:1 und einer Stoffdichte von 2% wurde in einer basaltbestückten Mahlmaschine im Umlaufverfahren gemahlen. Abb. IIA zeigt die Fasermischung vor der Mahlung, A>b. IIB zeigt die Fasermischung nach 13 Minuten Mahldauer.Example 2: A mixture of synthetic fibers of the PAN type and sulphate pulp in a ratio of 1: 1 and a stock consistency of 2% was in a basalt-tipped grinding machine milled in a circulation process. Fig. IIA shows the fiber mixture before grinding, A> b. IIB shows the fiber mixture after a milling time of 13 minutes.

L e e r s e i t eL e r s e i t e

Claims (13)

Verfahren zum Fibrillieren von Spinn- und Splitfasern aus Kunststoff Patentanspruche 1. Verfahren zum Fibrillieren von Spinn- und Splitfasern aus Kunststoff, beispielsweise aus der Gruppe der PVA-und PAN-Fasern, dadurch gekennzeichnet, daß die Fasern mit einer Länge unter 40 mm in einer Stoff-Wasser-Suspension mittels steinbestückter Mahlmaschine gemahlen werden.Process for the fibrillation of staple and split fibers made of plastic Claims 1. Method for fibrillation of staple and split fibers made of plastic, for example from the group of PVA and PAN fibers, characterized in that the fibers with a length of less than 40 mm in a substance-water suspension means stone-tipped grinder. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Mahlung der Fasern in einer Mischung mit organischen Fasern pflanzlichen Ursprungs durchgeführt wird.2. The method according to claim 1, characterized in that the grinding of fibers carried out in a mixture with organic fibers of vegetable origin will. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß als organische Fasern Zellstoffasern verwendet werden.3. The method according to claim 2, characterized in that as organic Fibers Pulp fibers are used. 4. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Mahlung in einem Mischungsverhältnis von 1 : 1 zwischen Kunststoff- und organischen Fasern durchgeführt wird.4. The method according to claim 2, characterized in that the grinding in a mixing ratio of 1: 1 between synthetic and organic fibers is carried out. 5. Verfahren nach einem der Ansprüche 2 oder 4, dadurch gekennzeichnet, daß die organischen Fasern in vorgemahlenem Zustand zugegeben werden.5. The method according to any one of claims 2 or 4, characterized in that that the organic fibers are added in a pre-ground state. 6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die organischen Fasern auf einen SR-Wert von 15-80°, insbesondere 20-60° vorgemahlen werden.6. The method according to claim 5, characterized in that the organic Fibers are pre-ground to an SR value of 15-80 °, in particular 20-60 °. 7. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Kunststoffasern eine Länge von 6 - 15 mm haben.7. The method according to any one of the preceding claims, characterized in, that the synthetic fibers have a length of 6-15 mm. 8. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Stoff-Wasser-Suspension ein Emulgator zugesetzt wird.8. The method according to claim 1, characterized in that the substance-water suspension an emulsifier is added. 9. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Stoff-Wasser-Suspension mittels basaltbestückter Mahlmaschine gemahlen wird.9. The method according to claim 1, characterized in that the substance-water suspension is ground by means of a basalt-tipped grinding machine. 10. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Stoff-Wasser-Suspension mittels korundbestückter Mahlmaschine gemahlen wird.10. The method according to claim 1, characterized in that the substance-water suspension is ground by means of a corundum-tipped grinding machine. 11. Verwendung der durch das Verfahren nach dem Anspruch 1 fibrillierten Fasern als Zuschlagstoff für im wesentlichen aus hydraulischen Bindemitteln bestehende Baustoffe.11. Use of the fibrillated by the method according to claim 1 Fibers as an aggregate for consisting essentially of hydraulic binders Building materials. 12. Verwendung der durch das Verfahren nach d@m Anspruch 1 fibrillierten Fasern als Zuschlagstoff; für die Herstellung von Papier und Karton.12. Use of the fibrillated by the method according to claim 1 Fibers as aggregate; for the production of paper and cardboard. 13. Verwendung der durch das Verfahren nach dem Anspruch 1 fibrillierten Fasern als Zusatz für die Herstellung von Filtermedien und hochreißfest ausgerüsteten Tuchern.13. Use of the fibrillated by the method according to claim 1 Fibers as an additive for the production of filter media and those with a highly tear-resistant finish Tuchern.
DE19813116005 1981-04-14 1981-04-14 Process for fibrillating cut and split fibres made of polymer Ceased DE3116005A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813116005 DE3116005A1 (en) 1981-04-14 1981-04-14 Process for fibrillating cut and split fibres made of polymer

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DE3116005A1 true DE3116005A1 (en) 1982-10-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536474A1 (en) * 1991-10-10 1993-04-14 Märkische Faser Ag Premnitz Multiple component system comprising natural polymers and PAN-fibers with asbestos-specific properties for use in hydraulic binders
WO2002040766A2 (en) * 2000-11-10 2002-05-23 Colombiana Kimberly Colpapel S.A. Method of recycling bonded fibrous materials and synthetic fibers and fiber-like materials produced thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0536474A1 (en) * 1991-10-10 1993-04-14 Märkische Faser Ag Premnitz Multiple component system comprising natural polymers and PAN-fibers with asbestos-specific properties for use in hydraulic binders
TR26209A (en) * 1991-10-10 1995-02-15 Maerkische Faser Ag MULTIPLE COMPUTER SYSTEM WITH NATURAL POLYMER FROM THE PAN (POLYACRINITRILE) STRUCTURES WITH ASBESTED PROPERTIES TO PARTICIPATE IN THE HYDRAULIC BINDING COMPOSITIONS
WO2002040766A2 (en) * 2000-11-10 2002-05-23 Colombiana Kimberly Colpapel S.A. Method of recycling bonded fibrous materials and synthetic fibers and fiber-like materials produced thereof
WO2002040766A3 (en) * 2000-11-10 2003-03-20 Colombiana Kimberly Colpapel S Method of recycling bonded fibrous materials and synthetic fibers and fiber-like materials produced thereof
US7255816B2 (en) 2000-11-10 2007-08-14 Kimberly-Clark Worldwide, Inc. Method of recycling bonded fibrous materials and synthetic fibers and fiber-like materials produced thereof

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