DE19506083A1 - Mixed fibre needled felt webs of cellulose and modified polypropylene@ staple fibres - Google Patents

Mixed fibre needled felt webs of cellulose and modified polypropylene@ staple fibres

Info

Publication number
DE19506083A1
DE19506083A1 DE19506083A DE19506083A DE19506083A1 DE 19506083 A1 DE19506083 A1 DE 19506083A1 DE 19506083 A DE19506083 A DE 19506083A DE 19506083 A DE19506083 A DE 19506083A DE 19506083 A1 DE19506083 A1 DE 19506083A1
Authority
DE
Germany
Prior art keywords
polypropylene
cellulose
staple fibres
modified polypropylene
staple fibers
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Withdrawn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
DE19506083A
Other languages
German (de)
Inventor
Klaus-Peter Dr Mieck
Renate Dr Luetzkendorf
Thomas Reusmann
Carmen Knobelsdorf
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 DE19506083A priority Critical patent/DE19506083A1/en
Publication of DE19506083A1 publication Critical patent/DE19506083A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-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
    • D04H1/54—Non-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 welding together the fibres, e.g. by partially melting or dissolving
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/047—Reinforcing macromolecular compounds with loose or coherent fibrous material with mixed fibrous material
    • C08J5/048—Macromolecular compound to be reinforced also in fibrous form
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-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
    • D04H1/42—Non-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
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-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
    • D04H1/44—Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-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
    • D04H1/54—Non-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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/90—Fillers or reinforcements, e.g. fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

Abstract

Mixts. of cellulose staple fibres and polypropylene staple fibres from polypropylene modified by the addn. of up to 15% grafted polypropylene to the granulate , are used in the fabrication of composite semi-finished materials.

Description

Vliesbildungsprozesse können mit einer oder mehreren Faserstoffkomponenten erfolgen. Werden verschiedene Faserstoffkomponenten verwendet, spricht man von Hybridvliesen. Die zur Kunststoffverstärkung unter anderem verwendeten Flachsfasernadelvliese können mit dem Ziel der Anpassung an die spätere Kunststoffmatrix bereits mit entsprechenden Stapelfasern als Hybridvlies hergestellt werden. Bekannt ist, daß mit der Zumischung von Polypropylen- Stapelfasern und damit der Herstellung eines Flachs-/Polypropylen-Hybrid­ vlieses Haftungsverbesserungen im späteren Polypropylen-Verbund erreich­ bar sind.Fleece formation processes can be carried out with one or more fibrous components respectively. If different fiber components are used, one speaks of hybrid fleeces. The used for plastic reinforcement among others Flax fiber needle-punched nonwovens can be made with the aim of adapting to the later Plastic matrix already with appropriate staple fibers as a hybrid fleece getting produced. It is known that with the addition of polypropylene Staple fibers and thus the production of a flax / polypropylene hybrid nonwoven adhesion improvements in the later polypropylene composite are cash.

Ziel der Erfindung ist die Herstellung eines textilen Flächengebildes in Form eines Nadelvlieses, bestehend aus cellulosischen Verstärkungsfasern und thermoplastischen Matrixfasern. Die Matrixfasern aus Polypropylen übernehmen nach einem entsprechenden Aufschmelzprozeß die Funktion der Matrix im Verbundkörper. Zur Haftungsverbesserung zwischen Verstärkungs­ faser und Matrix werden die Matrixfasern in modifizierter Form ersponnen. Die Modifizierung geschieht so, daß bis zu 15% gepfropftes Polypropylen gemeinsam mit anderem Polypropylen-Granulat ersponnen wird. Der jeweilige Feinheitsbereich richtet sich nach der eingesetzten Cellulosefasertype.The aim of the invention is the production of a textile fabric in Form of a needle fleece, consisting of cellulosic reinforcement fibers and thermoplastic matrix fibers. The matrix fibers made of polypropylene take over the function of the after a corresponding melting process Matrix in the composite body. To improve adhesion between reinforcement The fiber and matrix are spun in a modified form. The modification happens so that up to 15% grafted polypropylene is spun together with other polypropylene granules. The respective Fineness range depends on the cellulose fiber type used.

Die Vliesherstellung erfolgt nach inniger Vermischung der Cellulosestapel­ fasern mit den modifizierten Polypropylenstapelfasern in jedem denkbaren Mischungsverhältnis nach beliebiger Vliesherstellungstechnologie und Ma­ schineneinstellung. Das hergestellte Vlies erfährt eine Wärmebehandlung mit Temperaturen im Bereich der Schmelztemperatur der Polypropylenstapel­ faser. Durch Verpressung entsteht ein als Halbzeug verwertbarer Verbund­ körper aus cellulosefaserverstärktem Polypropylen. Das eingesetzte modi­ fizierte Polypropylen bewirkt aufgrund der Haftungserhöhung verbesserte mechanische und dynamische Eigenschaften des Verbundes. The fleece is produced after the cellulose stacks have been thoroughly mixed fibers with the modified polypropylene staple fibers in every conceivable Mixing ratio according to any fleece manufacturing technology and Ma machine setting. The fleece produced is heat-treated with temperatures in the range of the melting temperature of the polypropylene stacks fiber. Pressing creates a composite that can be used as a semi-finished product body made of cellulose fiber reinforced polypropylene. The modes used Defected polypropylene causes improved due to the increase in adhesion mechanical and dynamic properties of the composite.  

Ausführungsbeispiel 1Embodiment 1

Polypropylengranulat werden 5% eines mit Maleinsäureanhydrid gepfropften Polypropylens zugegeben. Diese Granulatmischung wird zu Stapelfasern der Feinheit 6,7 dtex/60 mm ersponnen. Im Mischbett wird eine Mischung aus 50% mechanisch aufgeschlossener Grünflachsfasern und 50% der modifizierten Polypropylenfasern hergestellt. Diese Mischung wird auf einer Vliesanlage zum Nadelvlies verarbeitet. Es wird eine Flächenmasse von 230 g/m² bei 25 Einstichen/cm² hergestellt. In einer Presse erfolgt die Aufheizung und Verpressung des Vlieses bei 180°C zum Zwecke der Aufschmelzung der Poly­ propylenstapelfasern und zur Herstellung des Halbzeugs.Polypropylene granules are 5% of a grafted with maleic anhydride Polypropylene added. This mixture of granules becomes staple fibers Fineness 6.7 dtex / 60 mm spun. A mixture of 50% mechanically digested green flax fibers and 50% of the modified Polypropylene fibers made. This mixture is on a fleece line processed into needle punch. It will have a basis weight of 230 g / m² at 25 Punctures / cm² produced. The heating takes place in a press and Pressing the fleece at 180 ° C for the purpose of melting the poly propylene staple fibers and for the manufacture of the semi-finished product.

Ausführungsbeispiel 2Embodiment 2

Nach 10%iger Zugabe eines mit Maleinsäureanhydrid gepfropften Polypropy­ lens zu anderem Polypropylengranulat und Erspinnung zu 3,8 dtex/50 mm Stapelfasern erfolgt die Herstellung einer Mischung Polypropylen/Grün­ flachsfaser im Verhältnis 40/60. Die Mischung wird zum Nadelvlies der Flächenmasse 700 g/m² verarbeitet, bei 180°C verpreßt und so ein Halbzeug hergestellt.After 10% addition of a polypropy grafted with maleic anhydride lens to other polypropylene granules and spinning to 3.8 dtex / 50 mm Staple fibers are made into a polypropylene / green blend flax fiber in a ratio of 40/60. The mixture becomes a needle punch Surface weight 700 g / m² processed, pressed at 180 ° C and thus a semi-finished product manufactured.

Claims (2)

1. Mischung aus Cellulosestapelfasern und Polypropylenstapelfasern zur Herstellung von Halbzeugen für den Verbundwerkstoffbereich und Ver­ fahren zu deren Herstellung dadurch gekennzeichnet, daß zur Verbesse­ rung der Haftung die Modifizierung der Polypropylenstapelfaser durch Zugabe von bis zu 15% gepfropften Polypropylen im Granulat erfolgt.1. Mixture of cellulose staple fibers and polypropylene staple fibers for the production of semi-finished products for the composite area and Ver proceed to their manufacture, characterized in that to improve the adhesion modification of the polypropylene staple fiber is carried out by adding up to 15% grafted polypropylene in the granules. 2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, daß die Mischung aus Cellulosestapelfasern und modifizierten Polypropylenstapelfasern hergestellt und gemeinsam zum Vlies verarbeitet wird.2. The method according to claim 1, characterized in that the mixture of Cellulose staple fibers and modified polypropylene staple fibers is produced and processed together to form the fleece.
DE19506083A 1995-02-22 1995-02-22 Mixed fibre needled felt webs of cellulose and modified polypropylene@ staple fibres Withdrawn DE19506083A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19506083A DE19506083A1 (en) 1995-02-22 1995-02-22 Mixed fibre needled felt webs of cellulose and modified polypropylene@ staple fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19506083A DE19506083A1 (en) 1995-02-22 1995-02-22 Mixed fibre needled felt webs of cellulose and modified polypropylene@ staple fibres

Publications (1)

Publication Number Publication Date
DE19506083A1 true DE19506083A1 (en) 1995-07-13

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Country Status (1)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998045519A1 (en) * 1997-04-08 1998-10-15 Fibervisions A/S Cellulose-binding fibres
EP0878567A2 (en) * 1997-05-14 1998-11-18 PCD Polymere AG Polyolefin fibres and polyolefin yarns and textile materials thereof
US5981410A (en) * 1997-04-08 1999-11-09 Fibervisions A/S Cellulose-binding fibres
DE102004016163A1 (en) * 2004-03-26 2005-10-13 Kometra Kunststoff-Modifikatoren Und -Additiv Gmbh Polypropylene composites
EP1990362A1 (en) * 2007-05-09 2008-11-12 Borealis Technology Oy Polyolefin compositions with highly crystalline cellulose regenerate fibers
WO2014145457A1 (en) * 2013-03-15 2014-09-18 Federal-Mogul Powertrain, Inc. Moldable nonwoven having high strength to weight ratio for structural components and method of construction thereof
US10184563B2 (en) 2013-12-10 2019-01-22 Howden Thomassen Compressors Bv Single seal ring stuffing box

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209352A (en) * 1987-09-04 1989-05-10 Wilkie J & D Ltd Non-woven sheet material which includes jute fibres and thermoplastic material
US5288772A (en) * 1992-06-23 1994-02-22 Clemson University Pre-treated cellulosic materials for producing molded composite articles therefrom and process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209352A (en) * 1987-09-04 1989-05-10 Wilkie J & D Ltd Non-woven sheet material which includes jute fibres and thermoplastic material
US5288772A (en) * 1992-06-23 1994-02-22 Clemson University Pre-treated cellulosic materials for producing molded composite articles therefrom and process

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998045519A1 (en) * 1997-04-08 1998-10-15 Fibervisions A/S Cellulose-binding fibres
US5981410A (en) * 1997-04-08 1999-11-09 Fibervisions A/S Cellulose-binding fibres
EP0878567A2 (en) * 1997-05-14 1998-11-18 PCD Polymere AG Polyolefin fibres and polyolefin yarns and textile materials thereof
EP0878567A3 (en) * 1997-05-14 2001-01-17 Borealis GmbH Polyolefin fibres and polyolefin yarns and textile materials thereof
CZ298667B6 (en) * 1997-05-14 2007-12-12 Borealis Gmbh Polyolefin fibers, polyolefin yarns, and textile fabrics produced therefrom
DE102004016163A1 (en) * 2004-03-26 2005-10-13 Kometra Kunststoff-Modifikatoren Und -Additiv Gmbh Polypropylene composites
EP1990362A1 (en) * 2007-05-09 2008-11-12 Borealis Technology Oy Polyolefin compositions with highly crystalline cellulose regenerate fibers
WO2008138794A1 (en) * 2007-05-09 2008-11-20 Borealis Technology Oy Polyolefin compositions with highly crystalline cellulose regenerate fibers
CN101679690B (en) * 2007-05-09 2012-09-05 博里利斯技术有限公司 Polyolefin compositions with highly crystalline cellulose regenerate fibers
WO2014145457A1 (en) * 2013-03-15 2014-09-18 Federal-Mogul Powertrain, Inc. Moldable nonwoven having high strength to weight ratio for structural components and method of construction thereof
CN105143541A (en) * 2013-03-15 2015-12-09 费德罗-莫格尔动力系公司 Moldable nonwoven having high strength to weight ratio for structural components and method of construction thereof
CN105143541B (en) * 2013-03-15 2018-02-16 费德罗-莫格尔动力系有限责任公司 The moldable non-woven material and its construction method that have high strength-weight ratio for structural member
US10184563B2 (en) 2013-12-10 2019-01-22 Howden Thomassen Compressors Bv Single seal ring stuffing box

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