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DE10149368A1 - Recycling process for flat fiber-reinforced thermoplastic scrap parts from vehicles in which parts are heated, rolled into thin plates and covered by fleeces of new material - Google Patents

Recycling process for flat fiber-reinforced thermoplastic scrap parts from vehicles in which parts are heated, rolled into thin plates and covered by fleeces of new material

Info

Publication number
DE10149368A1
DE10149368A1 DE2001149368 DE10149368A DE10149368A1 DE 10149368 A1 DE10149368 A1 DE 10149368A1 DE 2001149368 DE2001149368 DE 2001149368 DE 10149368 A DE10149368 A DE 10149368A DE 10149368 A1 DE10149368 A1 DE 10149368A1
Authority
DE
Germany
Prior art keywords
parts
heated
waste
rolled
waste parts
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Withdrawn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
DE2001149368
Other languages
German (de)
Inventor
Hans Vaeth
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.)
Huppert Engineering & Co GmbH
Original Assignee
Huppert Engineering & Co GmbH
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 Huppert Engineering & Co GmbH filed Critical Huppert Engineering & Co GmbH
Priority to DE2001149368 priority Critical patent/DE10149368A1/en
Publication of DE10149368A1 publication Critical patent/DE10149368A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0042Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0036Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting of large particles, e.g. beads, granules, pellets, flakes, slices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10Polymers of propylene
    • B29K2023/12PP, i.e. polypropylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005Body finishings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Scrap parts (1) are heated above the softening temperature of the matrix resin and formed into thin plates (10) by passing between rolls (4). The thin plates are then embedded in fleeces of new material.

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Wiederverwertung von Abfällen aus flächigen faserverstärkten thermoplastischen Teilen, wobei insbesondere gedacht ist an Kraftfahrzeuginnenverkleidungen aus thermoplastischem Werkstoff, in den zur Verstärkung festigkeitserhöhende Fasern eingelagert sind, z. B. Naturfasern, Glasfasern oder Fasern aus anderen geeigneten Werkstoffen, deren Festigkeit sowie Schmelz- bzw. Zersetzungstemperatur höher liegt als die des Matrixwerkstoffs. The present invention relates to a method for recycling waste from flat fiber-reinforced thermoplastic parts, in particular is intended for automotive interior trims thermoplastic material in the for reinforcement strength-increasing fibers are stored, for. B. Natural fibers, glass fibers or fibers from other suitable Materials, their strength as well as melting or Decomposition temperature is higher than that of Matrix material.

Derartige Abfallteile werden zum Zwecke des Recycling üblicherweise granuliert, d. h. bis auf sehr kleine Teilchengrößen zerkleinert. Die Naturfasern, deren Länge im ursprünglichen Werkstück zwischen 30 und 90 mm lag, werden dabei derart zerschnitten und zerrissen, daß sie bei einer Länge von höchstens noch ca. 15 mm als Verstärkungseinlagerung nicht mehr wirksam sind. Das so gewonnene Recyclat kann somit nur noch für minderwertige Zwecke weiterverwendet werden. Such waste parts are used for recycling usually granulated, i.e. H. except for very small ones Crushed particle sizes. The natural fibers, the length of which in original workpiece was between 30 and 90 mm, are cut and torn in such a way that they a maximum length of approx. 15 mm as Reinforcement storage are no longer effective. That so Recycled material can only be used for inferior ones Purposes can be used further.

Der vorliegende Vorschlag will erreichen, daß die Abfälle wieder zu Teilen gleicher Wertigkeit, z. B. zu neuen Kraftfahrzeuginnenverkleidungen weiterverarbeitet werden können. The present proposal aims to ensure that the Waste again in parts of equal value, e.g. B. new ones Automotive interior linings are processed can.

Die Lösung der gestellten Aufgabe gelingt dadurch, daß man die Abfallwerkstücke nicht oder allenfalls zu Flächenstücken zerkleinert, die eine nachfolgende Weiterverarbeitung ermöglichen, wobei eine Längenabmessung möglichst nicht unter 300 mm liegen soll, danach diese Flächenstücke auf eine oberhalb der Erweichungstemperatur des Materials liegende Temperatur, bei Polypropylen als Matrixwerkstoff auf etwa 180° bis 220°C erhitzt und anschließend die erhitzten Flächenstücke in einem Walzwerk zu einer dünnen Platte auswalzt, und schließlich die aus dem Walzvorgang hervorgegangenen Platten in Vliesen aus Neumaterialien eingebettet werden. The problem is solved in that the waste workpieces are not closed or at most closed Shredded areas, which is a subsequent one Allow further processing, with a length dimension if possible not less than 300 mm, then this Patches on one above the Softening temperature of the material lying temperature, for polypropylene heated as a matrix material to about 180 ° to 220 ° C and then the heated patches in one Rolling mill into a thin plate, and finally the plates resulting from the rolling process in Nonwovens made of new materials are embedded.

Dadurch, daß man eine allenfalls notwendige Zerkleinerung nur bis auf eine Größe durchführt, welche den größten Teil der verstärkenden Naturfasern unbeschädigt läßt, haben diese in den gewonnenen Platten ihre ursprüngliche Verstärkungswirkung und können als festigkeitsverleihende Basis des herzustellenden Neuteils dienen. By having a necessary one Shredding only to a size that the most of the reinforcing natural fibers are undamaged lets, these have theirs in the plates obtained original reinforcing effect and can be used as strengthening basis of the new part to be manufactured serve.

Da gewöhnlich die Abfallteile mit Folien oder textilem Material kaschiert waren, die beim Walzvorgang nicht vollständig in die Matrix z. B. Polypropylen eingetaucht wurden, geschieht gemäß dem letzten Verfahrensschritt das beidseitige Kaschieren mit einem Faservlies, sodaß das gewonnene Werkstück eine neuwertige Oberfläche hat und keine Probleme bereitet beim Aufbringen eines neuen Dekors oder bei der Weiterverarbeitung zwischen Heizplatten zu einem Neuteil. Since usually the waste parts with foils or textile Material were laminated that were not during the rolling process completely into the matrix z. B. Polypropylene immersed were done according to the last procedural step lamination on both sides with a non-woven fabric, so that the workpiece obtained has a new surface and does not cause problems when applying a new one Decorations or in further processing between Heating plates to a new part.

Weitere vorteilhafte Ausbildungen der Erfindung ergeben sich aus den weiteren Unteransprüchen. Further advantageous developments of the invention result itself from the further subclaims.

Die Erfindung wird nachfolgend durch die Beschreibung eines Ausführungsbeispiels anhand der beigegebenen Zeichnung weiter erläutert. Diese zeigt schematisch den Verfahrensablauf. The invention will hereinafter be described by the description of an embodiment based on the attached Drawing explained further. This shows schematically the Procedure.

Die Abfälle werden unmittelbar oder nach einer eventuell notwendigen Zerkleinerung zu flächigen Abfallteilen 1 unter einem Heizstrahler 2 vorbeigeführt, z. B. mittels eines Förderbandes 3. Danach gelangen sie in ein Walzwerk 4, in dem sie zwischen aufeinanderfolgenden Walzpaaren zu einem dünnen ebenen Strang 6 ausgewalzt werden, der einem Schneidwerk 7 zugeführt wird. Im Ausführungsbeispiel geschieht dies mittels eines weiteren Förderbandes 8. The wastes are passed under a radiant heater 2 immediately or after any shredding to flat waste parts 1 , e.g. B. by means of a conveyor belt 3rd Then they arrive in a rolling mill 4 , in which they are rolled out between successive pairs of rolls to form a thin, flat strand 6 , which is fed to a cutting unit 7 . In the exemplary embodiment, this is done by means of a further conveyor belt 8 .

Die zugeschnittenen Platten 10 werden schließlich in Vliese 12 aus Neumaterialien eingebettet und stehen für eine neue gleichwertige Verwendung zur Verfügung. The cut plates 10 are finally embedded in nonwovens 12 made of new materials and are available for a new equivalent use.

Die Temperaturführung während der beschriebenen Bearbeitung kann in der Weise gesteuert werden, daß die Abfallteile unter dem Heizstrahler vorbereitend auf ca. 80 bis 120°C erhitzt werden und die Enderhitzung auf die oberhalb der Erweichungstemperatur liegende Walztemperatur durch das erste oder die ersten Walzenpaare geschieht, deren Temperatur entsprechend eingestellt wird. Das letzte oder die letzten Walzenpaare können dann wieder gekühlt werden, sodaß es am Ende des Walzvorgangs zur Erstarrung der dünnen Platten kommt. The temperature control during the described Processing can be controlled in such a way that the Prepare waste parts under the radiant heater to approx. 80 to 120 ° C and the final heating to the rolling temperature above the softening temperature happens through the first or the first roller pairs, whose temperature is set accordingly. The the last or the last roller pairs can then again be cooled so that at the end of the rolling process Solidification of the thin plates comes.

Claims (7)

1. Verfahren zur Wiederverwertung von Abfällen aus flächigen faserverstärkten thermoplastischen Abfallteilen, dadurch gekennzeichnet, daß die Abfallteile (1) auf eine Temperatur oberhalb der Erweichungstemperatur des Matrixwerkstoffs erhitzt werden, anschließend die erhitzten Teile in einem Walzwerk (4) zu einer dünnen Platte ausgewalzt werden und die aus dem Walzvorgang hervorgegangenen Platten (10) in Vliese (12) aus Neumaterialien eingebettet werden. 1. A method for recycling waste from flat fiber-reinforced thermoplastic waste parts, characterized in that the waste parts ( 1 ) are heated to a temperature above the softening temperature of the matrix material, then the heated parts are rolled into a thin plate in a rolling mill ( 4 ) and the plates ( 10 ) resulting from the rolling process are embedded in nonwovens ( 12 ) made of new materials. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Abfälle vor der Erhitzung zu einer für die nachfolgende Weiterverarbeitung geeigneten Größe zerkleinert werden. 2. The method according to claim 1, characterized in that that the waste before heating becomes one for the Subsequent processing crushed suitable size become. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß bei den Abfallteilen (1) eine Längenabmessung nicht unter 300 mm liegt. 3. The method according to claim 2, characterized in that the length of the waste parts ( 1 ) is not less than 300 mm. 4. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Zerkleinerung durch Stanzen geschieht. 4. The method according to claim 2 or 3, characterized characterized in that the crushing is done by punching. 5. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Erhitzung der Abfallteile (1) mittels Heizstrahlern (2) geschieht. 5. The method according to one or more of the preceding claims, characterized in that the heating of the waste parts ( 1 ) by means of radiant heaters ( 2 ). 6. Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Erhitzung der Abfallteile im Walzwerk zwischen entsprechend aufgeheizten Walzenpaaren geschieht. 6. The method according to one or more of claims 1 to 4, characterized in that the heating of the Waste parts in the rolling mill between accordingly heated roller pairs happens. 7. Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Abfallteile mittels Heizstrahlern (2) auf eine Zwischentemperatur von etwa 80 bis 120° erhitzt werden und die Enderhitzung auf die oberhalb der Erweichungstemperatur liegende Walztemperatur zwischen dem oder den ersten entsprechend aufgeheizten Walzenpaaren geschieht. 7. The method according to one or more of claims 1 to 4, characterized in that the waste parts by means of radiant heaters ( 2 ) are heated to an intermediate temperature of about 80 to 120 ° and the final heating to the rolling temperature above the softening temperature between the or the first correspondingly heated pairs of rollers happens.
DE2001149368 2001-10-06 2001-10-06 Recycling process for flat fiber-reinforced thermoplastic scrap parts from vehicles in which parts are heated, rolled into thin plates and covered by fleeces of new material Withdrawn DE10149368A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2001149368 DE10149368A1 (en) 2001-10-06 2001-10-06 Recycling process for flat fiber-reinforced thermoplastic scrap parts from vehicles in which parts are heated, rolled into thin plates and covered by fleeces of new material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2001149368 DE10149368A1 (en) 2001-10-06 2001-10-06 Recycling process for flat fiber-reinforced thermoplastic scrap parts from vehicles in which parts are heated, rolled into thin plates and covered by fleeces of new material

Publications (1)

Publication Number Publication Date
DE10149368A1 true DE10149368A1 (en) 2003-04-17

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DE2001149368 Withdrawn DE10149368A1 (en) 2001-10-06 2001-10-06 Recycling process for flat fiber-reinforced thermoplastic scrap parts from vehicles in which parts are heated, rolled into thin plates and covered by fleeces of new material

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103786352A (en) * 2012-10-31 2014-05-14 辽宁辽杰科技有限公司 Recovery utilization method of continuous fiber-reinforced thermoplastic composite waste material
FR3007684A1 (en) * 2013-06-28 2015-01-02 Cetim Cermat PROCESS FOR RECYCLING THERMOPLASTIC COMPOSITE PARTS
US9205573B2 (en) 2013-04-10 2015-12-08 The Boeing Company Recycling of broad goods with thermoplastic stabilizer materials
CN106564133A (en) * 2016-07-27 2017-04-19 山东极威新材料科技有限公司 Device and method for recovering continuous fiber reinforced thermoplastic composite

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103786352A (en) * 2012-10-31 2014-05-14 辽宁辽杰科技有限公司 Recovery utilization method of continuous fiber-reinforced thermoplastic composite waste material
US9205573B2 (en) 2013-04-10 2015-12-08 The Boeing Company Recycling of broad goods with thermoplastic stabilizer materials
EP2789441B1 (en) * 2013-04-10 2016-10-26 The Boeing Company Recycling of fiber reinforced broad goods with a thermoplastic stabilizer materials
EP3132904A1 (en) * 2013-04-10 2017-02-22 The Boeing Company Recycling of broad goods with thermoplastic stabilizer materials
US9643340B2 (en) 2013-04-10 2017-05-09 The Boeing Company Recycling of broad goods with thermoplastic stabilizer materials
AU2014200622B2 (en) * 2013-04-10 2017-08-24 The Boeing Company Recycling of broad goods with thermoplastic stabilizer materials
AU2017258804B2 (en) * 2013-04-10 2018-08-23 The Boeing Company Recycling of broad goods with thermoplastic stabilizer materials
FR3007684A1 (en) * 2013-06-28 2015-01-02 Cetim Cermat PROCESS FOR RECYCLING THERMOPLASTIC COMPOSITE PARTS
CN106564133A (en) * 2016-07-27 2017-04-19 山东极威新材料科技有限公司 Device and method for recovering continuous fiber reinforced thermoplastic composite

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