[go: up one dir, main page]

DE4322371A1 - Synthetic fibres and film prodn. with magnetic properties - by adding ferro- or ferrimagnetic powder to polymer before spinning - Google Patents

Synthetic fibres and film prodn. with magnetic properties - by adding ferro- or ferrimagnetic powder to polymer before spinning

Info

Publication number
DE4322371A1
DE4322371A1 DE19934322371 DE4322371A DE4322371A1 DE 4322371 A1 DE4322371 A1 DE 4322371A1 DE 19934322371 DE19934322371 DE 19934322371 DE 4322371 A DE4322371 A DE 4322371A DE 4322371 A1 DE4322371 A1 DE 4322371A1
Authority
DE
Germany
Prior art keywords
polymer
magnetic
polymers
spinning
magnetic properties
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Withdrawn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
DE19934322371
Other languages
German (de)
Inventor
Dieter Vorbach
Siegfried Dr Kaufmann
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.)
Thueringisches Institut fuer Textil und Kunststoff Forschung eV
Original Assignee
Thueringisches Institut fuer Textil und Kunststoff Forschung eV
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 Thueringisches Institut fuer Textil und Kunststoff Forschung eV filed Critical Thueringisches Institut fuer Textil und Kunststoff Forschung eV
Priority to DE19934322371 priority Critical patent/DE4322371A1/en
Publication of DE4322371A1 publication Critical patent/DE4322371A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/0027—Thick magnetic films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0008—Magnetic or paramagnetic

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Multicomponent Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

Prodn. comprises adding 0.1-50 wt.% ferro- or ferri-magnetic substances with particle size 0.002-10 microns (II) to the polymer (III) during its synthesis and then spinning the polymer. USE/ADVANTAGE - Used for the prodn. of industrial textiles, etc., and in electrical engineering and electronics applications, e.g. for data storage. The process enables the prodn. of magnetic film or fibre from high polymers, e.g., fibre with a magnetic core and non-magnetic shell (or vice versa) by two-component spinning. In an example, polyamide was mixed with 10 wt.% magnetic powder in an extruder, and the mixt. was spun at 550 m/min. to give fibres which were wound on a bobbin 2m from the spinning nozzle.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Fäden oder Folien aus synthetischen Hochpolymeren, wie z. B. Polyamide, Polyester oder Polyolefine, die nach dem Schmelzspinnverfahren hergestellt werden, wobei bei der Herstellung dieser Fäden oder Folien bzw. bei der Herstellung der Ausgangsprodukte für diese Fäden oder Folien, Substanzen zugesetzt werden, die diesen Fäden oder Folien magnetische Eigenschaften verleihen.The invention relates to a method for producing threads or films made of synthetic high polymers, such as. B. polyamides, Polyester or polyolefins made by the melt spinning process are produced, with the production of these threads or Films or in the production of the starting products for them Threads or foils, substances are added to these threads or give films magnetic properties.

Die nach diesen Verfahren hergestellten Fäden oder Folien können z. B. im Bereich der technischen Textilien, nachdem sie zu Flächengebilden verarbeitet wurden, eingesetzt werden. Der Einsatz kann auch im Bereich Elektrotechnik oder Elektronik erfolgen, z. B. als Datenspeicher.The threads or films produced by these processes can e.g. B. in the field of technical textiles after they too Fabric was processed, are used. Of the Can also be used in the field of electrical engineering or electronics take place, e.g. B. as a data storage.

Es ist bekannt, daß Fäden oder Folien aus synthetischen Hochpolymeren auf Spinnmaschinen nach bekannten Verfahren hergestellt werden und daß z. B. den Folien Substanzen zugesetzt werden, die zu einer Eigenschaftsverbesserung z. B. des Gleitverhaltens führen: DD 1 81 579, DD 26 61 534, DE 34 14 310, DE 34 14 347.It is known that threads or films made of synthetic High polymers on spinning machines using known processes are produced and that z. B. substances added to the films be, which lead to an improvement in properties z. B. of Lead gliding behavior: DD 1 81 579, DD 26 61 534, DE 34 14 310, DE 34 14 347.

Diese Fäden und Folien besitzen jedoch auf Grund der Materialeigenschaften der verwendeten Ausgangsstoffe keine magnetischen Eigenschaften.However, these threads and foils are due to the Material properties of the raw materials used none magnetic properties.

Das Ziel der Erfindung ist es, Fäden und Folien aus hochpolymeren Stoffen mit magnetischen Eigenschaften herzustellen.The aim of the invention is to make threads and foils high polymer materials with magnetic properties to manufacture.

Die Aufgabe wird dadurch gelöst, indem den Polymeren, die zu Fäden oder Folien versponnen werden, ferro- bzw. ferrimagnetische Stoffe zugemischt werden.The object is achieved by the polymers, which too Threads or foils are spun, ferro- or ferrimagnetic substances are added.

Die Zumischung dieser Stoffe kann schon während der Synthese dieser Polymeren oder während der Erspinnung erfolgen. Die magnetischen Stoffe werden in Form von Pulvern mit mittleren Teilchengrößen von 0,002 bis 10 µm und Mengen von 0,1 bis 50 Gew.%, bezogen auf das Polymergewicht, zugesetzt.These substances can be added during the synthesis of these polymers or during spinning. The magnetic substances are in the form of powders with medium  Particle sizes from 0.002 to 10 µm and amounts from 0.1 to 50 % By weight, based on the polymer weight, was added.

Durch die Technik des Bikomponentenspinnens ist es auch möglich, daß in diesen Fäden oder Folien eine Kern-Mantel-Struktur mit unterschiedlichen magnetischen Eigenschaften erzeugt werden kann.The technology of bicomponent spinning also makes it possible that in these threads or films with a core-shell structure different magnetic properties are generated can.

Je nach Zuführung der Polymerströme zur Düse, die aus mehreren Zuführungskanälen mit Polymeren gespeist wird, kann eine Faser oder Folie mit einem magnetischen Kern oder umgekehrt mit einem magnetischen Mantel hergestellt werden.Depending on the feed of the polymer streams to the nozzle, which consist of several Feed channels fed with polymers can be a fiber or foil with a magnetic core or vice versa with one magnetic sheath can be made.

Ausführungsbeispiel 1Embodiment 1

Auf einer Spinnmaschine zur Herstellung von Polyamidfilamenten wurden Fäden von 100 µm Durchmesser ersponnen. In der Extrudereinzugszone erfolgte die Zugabe des Polymeren und des magnetischen Pulvers im Anteil von 10% bezogen auf das Polymergewicht. Im Extruder erfolgte die innige Mischung des Pulvers mit dem Polymeren. Die Spinngeschwindigkeit betrug 550 m/min. Nach 2 m Spinnweg wurden die Fäden auf einer Spule aufgewickelt.On a spinning machine for the production of polyamide filaments threads of 100 µm in diameter were spun. In the Extruder feed zone, the addition of the polymer and magnetic powder in a proportion of 10% based on the Polymer weight. The intimate mixing of the Powder with the polymer. The spinning speed was 550 m / min. After 2 m of spinning, the threads were on a spool wound up.

Ausführungsbeispiel 2Embodiment 2

Als Spinneinrichtung wurde eine Vorrichtung mit zwei Extrudern eingesetzt. Der eine Extruder wurde mit Polymeren ohne Zusätzen beschickt, dem anderen Extruder wurde Polymeres mit 15 Gew.% eines ferrimagnetischen Stoffes zugegeben, der bei der Synthese des Polymeren als Pulver zugemischt wurde. Die Polymeren waren unterschiedlich. Für das Polymere mit dem magnetischen Zusätzen wurde eines mit niedrigerer Schmelzeviskosität ausgewählt.A device with two extruders was used as the spinning device used. One extruder was made with polymers without additives charged, the other extruder was polymer with 15 wt.% of a ferrimagnetic substance added during the synthesis of the polymer was added as a powder. The polymers were differently. For the polymer with the magnetic additives one with a lower melt viscosity was selected.

Die Fäden wurden aus einer Bikomponentendüse ersponnen. Das Fadeninnere bestand, bei einem Durchmesser von 70 µm, aus Polymeren ohne Zusätzen. Der äußere Mantel hatte eine Schichtdicke von 10 µm und bestand aus Polymeren mit 20 Gew.% eines magnetischen Pulvers.The threads were spun from a bicomponent nozzle. The inside of the thread consisted of a diameter of 70 µm Polymers without additives. The outer coat had one Layer thickness of 10 microns and consisted of polymers with 20 wt.% of a magnetic powder.

Die Spinngeschwindigkeit betrug 300 m/min.The spinning speed was 300 m / min.

Claims (4)

1. Verfahren zur Herstellung von synthetischen Fäden und Folien mit magnetischen Eigenschaften, gekennzeichnet dadurch, daß dem Polymeren bei der Synthese ferro- bzw. ferrimagnetische Stoffe mit Teilchengrößen von 0,002 bis 10 µm und einem Gewichtsanteil von 0,1 bis 50%, bezogen auf das Polymergewicht, zugesetzt werden und diese Polymere anschließend versponnen werden.1. A process for the production of synthetic threads and films with magnetic properties, characterized in that the polymer in the synthesis of ferromagnetic or ferrimagnetic substances with particle sizes of 0.002 to 10 microns and a weight fraction of 0.1 to 50%, based on the Polymer weight, are added and these polymers are then spun. 2. Verfahren nach Anspruch 1, gekennzeichnet dadurch, daß den Polymeren während der Erspinnung ferro- oder ferrimagnetische Stoffe zugesetzt werden.2. The method according to claim 1, characterized in that the Polymers ferro- or ferrimagnetic during spinning Substances are added. 3. Verfahren nach Anspruch 1 und/oder 2, gekennzeichnet dadurch, daß auf einer Bikomponentenspinnmaschine Fäden oder Folien ersponnen werden, die durch den Einsatz von Polymeren mit unterschiedlichen Anteilen an ferro- bzw. ferrimagnetischen Stoffen, über den Faden bzw. Folienquerschnitt unterschiedliche magnetische Eigenschaften besitzen.3. The method according to claim 1 and / or 2, characterized in that that threads or foils on a bicomponent spinning machine are spun by using polymers with different proportions of ferro- or ferrimagnetic Fabrics, different across the thread or film cross-section have magnetic properties. 4. Verfahren nach Anspruch 1 bis 3, gekennzeichnet dadurch, daß Mantel und Kern der Bikomponentenfasern und -folien aus unterschiedlichen Polymeren bestehen können.4. The method according to claim 1 to 3, characterized in that The jacket and core of the bicomponent fibers and foils different polymers can exist.
DE19934322371 1993-07-06 1993-07-06 Synthetic fibres and film prodn. with magnetic properties - by adding ferro- or ferrimagnetic powder to polymer before spinning Withdrawn DE4322371A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934322371 DE4322371A1 (en) 1993-07-06 1993-07-06 Synthetic fibres and film prodn. with magnetic properties - by adding ferro- or ferrimagnetic powder to polymer before spinning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934322371 DE4322371A1 (en) 1993-07-06 1993-07-06 Synthetic fibres and film prodn. with magnetic properties - by adding ferro- or ferrimagnetic powder to polymer before spinning

Publications (1)

Publication Number Publication Date
DE4322371A1 true DE4322371A1 (en) 1994-02-03

Family

ID=6492013

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934322371 Withdrawn DE4322371A1 (en) 1993-07-06 1993-07-06 Synthetic fibres and film prodn. with magnetic properties - by adding ferro- or ferrimagnetic powder to polymer before spinning

Country Status (1)

Country Link
DE (1) DE4322371A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995023884A1 (en) * 1994-03-03 1995-09-08 Tore Carl Fredrik Klason Emi shielding materials, fibers therefor and method for their preparation
DE19516448A1 (en) * 1995-05-04 1996-11-07 Siemens Matsushita Components Flexible plastics foil with magnetic characteristics e.g. for audio, image and data recording
DE19942939A1 (en) * 1999-09-08 2001-03-15 Siemens Ag Soft magnetic film and process for its production
EP1765519A4 (en) * 2004-04-12 2008-04-09 Polymer Group Inc PROCESS FOR PRODUCING ELECTROCONDUCTIVE SUBSTRATES
WO2015006697A1 (en) * 2013-07-11 2015-01-15 Heikkila Kurt E Surface modified particulate and sintered extruded products

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995023884A1 (en) * 1994-03-03 1995-09-08 Tore Carl Fredrik Klason Emi shielding materials, fibers therefor and method for their preparation
DE19516448A1 (en) * 1995-05-04 1996-11-07 Siemens Matsushita Components Flexible plastics foil with magnetic characteristics e.g. for audio, image and data recording
DE19942939A1 (en) * 1999-09-08 2001-03-15 Siemens Ag Soft magnetic film and process for its production
DE10040439B4 (en) * 1999-09-08 2005-05-12 Siemens Ag Magnetic foil and method for its production
DE10040439B8 (en) * 1999-09-08 2005-09-15 Siemens Ag Soft magnetic film and method for its production
EP1765519A4 (en) * 2004-04-12 2008-04-09 Polymer Group Inc PROCESS FOR PRODUCING ELECTROCONDUCTIVE SUBSTRATES
WO2015006697A1 (en) * 2013-07-11 2015-01-15 Heikkila Kurt E Surface modified particulate and sintered extruded products
US9512544B2 (en) 2013-07-11 2016-12-06 Tundra Composites, LLC Surface modified particulate and sintered or injection molded products
US10052691B2 (en) 2013-07-11 2018-08-21 Tundra Composites, LLC Surface modified particulate and sintered or injection molded products
US10328491B2 (en) 2013-07-11 2019-06-25 Tundra Composites, LLC Surface modified particulate and sintered or injection molded products
US10456836B2 (en) 2013-07-11 2019-10-29 Tundra Composites, LLC Surface modified particulate and sintered or injection molded products
US11000895B2 (en) 2013-07-11 2021-05-11 Tundra Composits, LLC Surface modified particulate and sintered or injection molded products

Similar Documents

Publication Publication Date Title
DE2029696C3 (en) Glass fiber reinforced plastic granulate and process for its production
EP0335186A2 (en) Compositions containing metallic fibres and their application for manufacturing formed articles used for electromagnetic radiation protection
DE3686404T2 (en) FLEXIBLE MATERIAL COMPOSED FROM VARIOUS INGREDIENTS AND METHOD FOR THE PRODUCTION THEREOF.
DE2251071C3 (en)
DE3003251C2 (en) Sizing liquid for coating glass fibers and their use
DE60202623T2 (en) METHOD FOR THE PRODUCTION OF IMPREGNATED ELECTRIC POWER-CONDUCTIVE FIBERS AND FIBER PARTICLES
DE3325954A1 (en) FIBER REINFORCED COMPOSITE MATERIALS
DE2251071B2 (en) METHOD OF MANUFACTURING CONDUCTIVE FAEDS
DE1435405C3 (en) Process for the production of composite threads from two different polymeric materials
DE68904967T2 (en) LOW POWER IGNITION CORD AND METHOD FOR PRODUCING IT.
DE69122250T2 (en) METHOD FOR THE PRODUCTION OF PIPES OR LINES FROM GLASS FIBER STRAND IMPREGNATED WITH THERMOPLASTIC POWDER
DE2823577A1 (en) TWO-COMPONENT ELECTRIC FIBER AND METHOD FOR MANUFACTURING IT
DE19537726C2 (en) Process for the production of mechanically stable polyfilen filament bundles from cellulose with a very high proportion of additives
DE3935264A1 (en) Moulding material for thermoplastic composites - mfd. from mixed yarn of uniaxially-oriented continuous thermoplastic fibres with low heat shrinkable and continuous reinforcing fibres
EP0613414B1 (en) Process and plant for producing pencils
DE4322371A1 (en) Synthetic fibres and film prodn. with magnetic properties - by adding ferro- or ferrimagnetic powder to polymer before spinning
DE69509739T2 (en) Method for encapsulating an electronic component and encapsulated electronic component by this method
DE68905139T2 (en) METHOD FOR PRODUCING A FLEXIBLE, POLYMER-IMPREGNATED REINFORCEMENT MATERIAL, THIS PRODUCED POLYMER-IMPREGNATED REINFORCEMENT MATERIAL, AND MOLD PRODUCED ON THE BASIS OF THIS REINFORCEMENT MATERIAL.
DE69028512T2 (en) Molded granules, their production and their use for the production of moldings
DE69205422T2 (en) SHIELDED THREADED FIBER YARN.
DE2162308A1 (en) Dyed yarn
DE3686369T2 (en) EXTENDED MOLD GRANULES AND THEIR USE IN THE INJECTION MOLDING PROCESS.
DE2720701C2 (en) Process for the production of synthetic fibers from a non-crystalline polymer
DE69606199T2 (en) METHOD AND DEVICE FOR PRODUCING A FILM WITH GRANULAR MATERIAL THEREOF
DE69916218T2 (en) Long fiber reinforced thermoplastic resin material characterized by the addition of fillers and process for its production

Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
8122 Nonbinding interest in granting licenses declared
8139 Disposal/non-payment of the annual fee