WO2006111037A1 - Thermoplastisch verarbeitbarer verbundwerkstoff - Google Patents
Thermoplastisch verarbeitbarer verbundwerkstoff Download PDFInfo
- Publication number
- WO2006111037A1 WO2006111037A1 PCT/CH2006/000215 CH2006000215W WO2006111037A1 WO 2006111037 A1 WO2006111037 A1 WO 2006111037A1 CH 2006000215 W CH2006000215 W CH 2006000215W WO 2006111037 A1 WO2006111037 A1 WO 2006111037A1
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- WO
- WIPO (PCT)
- Prior art keywords
- composite material
- layer
- fibers
- material according
- thermoplastic
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/465—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating by melting a solid material, e.g. sheets, powders of fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
- B29C70/506—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands and impregnating by melting a solid material, e.g. sheet, powder, fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- D04H13/00—Other non-woven fabrics
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- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
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- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
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- 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
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- B29K2105/25—Solid
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Definitions
- the invention relates to a thermoplastically processable composite material comprising at least one nonwoven fabric layer A of thermoplastic fibers and a fabric or scrim layer B of reinforcing fibers.
- Thermoplastics are increasingly used because of their low weight for the production of moldings, especially automotive parts. To give them sufficient strength and rigidity, they are usually bonded with reinforcing fibers.
- GMT semi-finished glass mat reinforced thermoplastics
- this procedure requires a lot of energy because the viscous melt at pressures well above 1 bar must be pressed into the mat.
- thermoplastically processable composite material which can be produced easily and with little expenditure of energy and is easy to handle, and which can be processed into a semifinished product or equal to finished parts, even with a low basis weight.
- thermoplastically processable, sheet-like composite material consisting of
- EP-A 697 275 describes a rigid, flat composite fiber material of a thermoplastic matrix and reinforcing fibers, consisting of two cover layers A of glass fiber fabric embedded in a thermoplastic matrix, and a core layer B of the thermoplastic matrix, which may contain glass fibers with undirected fiber orientation.
- EP-A 603 633 relates to a flame retardant laminate of A. a layer of a consolidated spunbonded nonwoven,
- the laminates are to be used as roofing membranes. They necessarily contain a metal foil as a cover layer, which is excluded in the present invention.
- moldings made from such laminates by thermoplastic forming would have far too low strength and rigidity, for example for the automotive sector, because of the low basis weight of the sheeting.
- thermoplastic fibers for the nonwoven layer A are all spinnable thermoplastics in question, preferably polypropylene with an MFI (230 0 C, 2.16 kp) of 25 to 150 g / 10 min, but also polyamides and linear polyesters, as well as for special applications, eg in aircraft construction, including polysulfones, polyether ketones and polyetherimides.
- the thermoplastic fibers generally have an average length of 20 to 100 mm.
- the layer A preferably consists of 100% thermoplastic fibers, but mixed nonwovens with up to 90% by weight, in particular with 40 to 70% by weight, of reinforcing fibers are also suitable.
- Preferred reinforcing fibers are glass fibers, but also natural fibers, aramid fibers and fibers of higher melting polymers are suitable.
- the reinforcing fibers in the layer A generally have an average length of 20 to 200 mm. To be readily miscible with the thermoplastic fibers, they should be present as individual, unbonded fibers.
- the nonwoven fabric of layer A is produced by the Krempel or Airlay process. This results in a pure thermoplastic fiber fleece or a mixed fiber fleece with a basis weight of 100 to 2000 g / m 2 , preferably from 300 to 1000 g / m 2 .
- the layer B is preferably a textile fabric, eg a linen fabric, a twill fabric or a leno fabric; In addition, scrims made of parallel fibers are also suitable.
- the reinforcing fibers are again preferably glass fibers.
- aramid fibers, natural fibers, carbon fibers, basalt fibers and fibers of higher-melting polymers are suitable, as well as hybrid fibers, for example of glass fibers and polypropylene fibers.
- the fibers of the textile fabric or fabric are preferably present as fiber bundles with a titer between 30 and 3000 tex. Both direct and assembled rovings can be used. Assembled rovings have the advantage that the titers of the individual bundles can be between 40 and 160 tex.
- the layer B has a basis weight of 100 to 1000 g / m 2 , preferably from 200 to 800 g / m 2 .
- the preferred layer sequence is A - B - A, whereby the two layers A can also have different thicknesses. Besides, e.g. also the layer sequences A - B, and A - B - A - B - A possible.
- the layers A and B are connected to each other, preferably needled together, so that during transport and during subsequent processing, the layers do not slip and when inserting into the mold only a single layer must be inserted.
- the fiber bundles of the layer B are opened by the needling, so that a better impregnation with the thermoplastic melt of the layer A can take place during hot pressing of the composite material.
- the needling can be done on conventional needle chairs with felting needles. Also stitching the layers, e.g. with polypropylene threads, is possible.
- the layers are each heated on the side to be bonded above the softening point of the thermoplastic, e.g. by hot air or IR irradiation and then pressed together.
- the nonwoven layer A is produced by the carding or airlay method, whereby an endless strip is obtained.
- the layer A is then continuously brought together with the layer B and pinned or thermally connected, either a position B is introduced between two layers A or one layer A and one layer B are merged.
- the composites can be pressed directly into three-dimensional finished parts in a mold at temperatures above the softening point of the thermoplastic.
- the semi-finished product preferably has a thickness of 0.5 to 5.0, in particular from 1, 0 to 2.0 mm and a basis weight of 200 to 3000, in particular from 300 to 1500 g / m 2 . It can be stored, transported and further processed to finished parts if required.
- the finished parts produced from the composite materials according to the invention are characterized by a high strength and rigidity, as well as by a low weight. They are preferably used in the motor vehicle sector, for example as reinforcement for spare wheel wells, rear doors, bumpers or underfloors. Sandwich weights are particularly light and highly rigid. They can be used eg as loading floors in trucks. Further applications are for example for sporting goods, in railroad cars and in aircraft. For the latter, laminates are preferably used in which a fabric layer B of carbon fibers by the Thermobonding- method be connected with a nonwoven fabric made of high temperature resistant thermoplastics.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Die Erfindung betrifft einen thermoplastisch verarbeitbaren Verbundwerkstoff aus A. mindestens einer Faservliesschicht aus Thermoplastfasern und gegebenenfalls Verstärkungsfasern und B mindestens einer Gewebe- oder Gelege-Schicht aus Verstärkungsfasern, wobei die Schichten A und B zusammengenadelt, zusammengenäht oder thermisch miteinander verbunden sind.
Description
Thermoplastisch verarbeitbarer Verbundwerkstoff
Die Erfindung betrifft einen thermoplastisch verarbeitbaren Verbundwerkstoff, enthaltend mindestens eine Faservliesschicht A aus Thermoplastfasern und eine Gewebe- oder Gelegeschicht B aus Verstärkungsfasern.
Thermoplastische Kunststoffe werden wegen ihres geringen Gewichtes in zunehmendem Maße zur Herstellung von Formteilen, insbesondere von Kraftfahrzeugteilen verwendet. Um ihnen eine ausreichende Festigkeit und Steifigkeit zu verleihen, werden sie gewöhnlich mit Verstärkungsfasern verbunden. So werden z.B. flächige Halbzeuge aus glasmattenverstärkten Thermoplasten („GMT- Halbzeug") hergestellt durch Zusammenführen von Endlos- Glasfasermatten und Thermoplast- Schmelzebahnen und Konsolidieren auf einer Doppelbandpresse. Diese Arbeitsweise erfordert jedoch einen hohen Energieaufwand, da die zäh- flüssige Schmelze bei Drücken weit oberhalb von 1 bar in die Matte eingepresst werden muss.
Außerdem sind nach diesem Verfahren in der Praxis nur Halbzeuge und damit auch Fertigteile mit einem Flächengewicht von mehr als 1500 g/m2 herstellbar.
In der DE-A 36 14 533 ist ein Verfahren zur Herstellung von Formkörpern aus thermoplastischen Kunststoffen, die eine Verstärkungseinlage enthalten, beschrieben. Dabei wird in Anlehnung an die Textilfasertechnologie ein Mischvlies aus Thermoplastfasern und Verstärkungsfasern nach dem Krempel- oder Airlay- Verfahren hergestellt und durch Nadeln verfestigt. Zuschnitte aus diesem Mischvlies werden erwärmt und direkt zu Formkörpern verpresst. Zwischen zwei erwärmte Zuschnitte kann ein weiteres flächiges Substrat, z.B. ein Gittergewebe oder ein Stoffgewebe aufgelegt und mitverpresst werden. Dabei besteht aber die Gefahr, dass beim Handling, d.h. beim Transport oder beim Einlegen in die Presse, die Lagen verrutschen.
Der Erfindung lag nun die Aufgabe zugrunde, einen thermoplastisch verarbeitbaren Verbundwerkstoff bereitzustellen, der einfach und mit geringem Energieaufwand herstellbar und problemlos handhabbar ist, und der zu einem Halbzeug oder gleich zu Fertigteilen, auch mit geringem Flächengewicht, verarbeitet wer- den kann.
Diese Aufgabe wird erfindungsgemäß gelöst durch einen thermoplastisch verarbeitbaren, flächigen Verbundwerkstoff, bestehend aus
A. mindestens einer Faservliesschicht aus 10 bis 100 Gew.% Thermoplastfa- sern und 0 bis 90 Gew.% Verstärkungsfasern mit einem Flächengewicht von
100 bis 2000 g/m2 und
B. mindestens einer Gewebe- oder Gelegeschicht aus Verstärkungsfasern mit einem Fiächengewicht von 100 bis 1000 g/m2, wobei die Schichten A und B zusammengenadelt, zusammengenäht oder thermisch miteinander verbunden sind.
Die EP-A 697 275 beschreibt einen biegesteifen, flächigen Faserverbundwerkstoff aus einer Thermoplastmatrix und Verstärkungsfasern, bestehend aus zwei Deckschichten A aus Glasfasergewebe, das in eine Thermoplastmatrix eingebettet ist, und einer Kernschicht B aus der Thermoplastmatrix, die Glasfasern mit ungerichteter Faserorientierung enthalten kann.
Die EP-A 603 633 betrifft einen flammhemmenden Schichtstoff aus A. einer Schicht eines verfestigten Spinnvlieses,
B. einer Gelegeschicht aus Glasfasern mit einem Flächengewicht von maximal 30 g/m2 und
C. einer Metallfolie, wobei die Schichten durch Nadelung miteinander verbunden sind.
Die Schichtstoffe sollen als Dachbahnen angewandt werden. Sie enthalten zwingend eine Metallfolie als Deckschicht, die bei der vorliegenden Erfindung ausgeschlossen ist. Außerdem hätten Formteile, die aus derartigen Schichtstoffen durch thermoplastisches Umformen hergestellt werden (falls dies überhaupt möglich ist), eine z.B. für den Kraftfahrzeugbereich wegen des niedrigen Flächengewichts des Geleges viel zu geringe Festigkeit und Steifigkeit.
Im Gegensatz zur EP-A 603 633 ist beim erfindungsgemässen Verbundwerkstoff eine Metallfolie nicht erwünscht und schon gar nicht erforderlich.
Als Thermoplastfasern für die Faservliesschicht A kommen alle verspinnbaren thermoplastischen Kunststoffe in Frage, vorzugsweise Polypropylen mit einem MFI (2300C, 2.16 kp) von 25 bis 150 g/10 min, daneben aber auch Polyamide und lineare Polyester, sowie für besondere Anwendungszwecke, z.B. im Flug- zeugbau, auch Polysulfone, Polyetherketone und Polyetherimide. Die Thermoplastfasern weisen im allgemeinen eine mittlere Länge von 20 bis 100 mm auf. Die Schicht A besteht vorzugsweise zu 100% aus Thermoplastfasern, es sind jedoch auch Mischvliese mit bis zu 90 Gew.%, insbesondere mit 40 bis 70 Gew.% Verstärkungsfasern geeignet. Bevorzugte Verstärkungsfasern sind Glas- fasern, daneben sind aber auch Naturfasern, Aramidfasern und Fasern aus höher schmelzenden Polymeren geeignet. Die Verstärkungsfasern in der Schicht A weisen im allgemeinen eine mittlere Länge von 20 bis 200 mm auf. Damit sie gut mit den Thermoplastfasern mischbar sind, sollten sie als individuelle, nicht gebundene Fasern vorliegen. Das Faservlies der Schicht A wird nach dem Krem- pel- oder Airlay- Verfahren hergestellt. Dabei entsteht ein reines Thermoplastfaservlies oder ein Mischfaservlies mit einem Flächengewicht von 100 bis 2000 g/m2, vorzugsweise von 300 bis 1000 g/m2.
Die Schicht B ist vorzugsweise ein textiles Gewebe, z.B. ein Leinengewebe, ein Köpergewebe oder ein Drehergewebe; daneben sind auch Gelege aus parallelen Fasern geeignet. Die Verstärkungsfasern sind wieder vorzugsweise Glasfa-
- A -
sern, daneben sind auch Aramidfasern, Naturfasern, Kohlenstofffasern, Basaltfasern und Fasern aus höher schmelzenden Polymeren geeignet, sowie Hybridfasern, z.B. aus Glasfasern und Polypropylenfasern. Die Fasern des textilen Gewebes oder Geleges liegen vorzugsweise als Faserbündel mit einem Titer zwischen 30 und 3000 tex vor. Es können sowohl Direkt- als auch assemblierte Rovings eingesetzt werden. Assemblierte Rovings haben den Vorteil, dass die Titer der einzelnen Bündel zwischen 40 und 160 tex liegen können. Die Schicht B hat ein Flächengewicht von 100 bis 1000 g/m2, vorzugsweise von 200 bis 800 g/m2.
Die bevorzugte Schichtenfolge ist A - B - A, wobei die beiden Schichten A auch verschieden dick sein können. Daneben sind z.B. auch die Schichtenfolgen A - B, und A - B - A - B - A möglich.
Wesentlich ist, dass die Schichten A und B miteinander verbunden, vorzugweise miteinander vernadelt sind, damit beim Transport und bei der späteren Weiterverarbeitung die Lagen nicht verrutschen und beim Einlegen in die Pressform nur eine einzige Lage eingelegt werden muss. Außerdem werden durch das Nadeln die Faserbündel der Schicht B geöffnet, so dass beim Heißverpressen des Verbundwerkstoffs eine bessere Tränkung mit der Thermoplastschmelze der Schicht A erfolgen kann. Das Nadeln kann auf üblichen Nadelstühlen mit Filznadeln vorgenommen werden. Auch ein Vernähen der Schichten, z.B. mit Polypropylenfäden, ist möglich. Bei dem Thermobonding- Verfahren werden die Schichten jeweils auf der zu verbindenden Seite über den Erweichungspunkt des Thermoplasten erwärmt, z.B. durch Heißluft oder IR- Bestrahlung und dann miteinander verpresst.
Zur Herstellung der erfindungsgemäßen Verbundwerkstoffe wird zunächst die Faservliesschicht A nach dem Krempel- oder Airlay- Verfahren hergestellt, wobei ein endloses Band erhalten wird. Die Schicht A wird dann kontinuierlich mit der Schicht B zusammengeführt und zusammengenadelt bzw. thermisch verbunden,
wobei entweder zwischen zwei Lagen A eine Lage B eingeführt wird oder je eine Lage A und eine Lage B zusammengeführt werden. Zur Herstellung der Schichtenfolge A - B kann auch die Faserschicht B vor dem Nadeln auf dem Krempelbzw. Airlay-Vlies abgelegt und anschließend mit diesem zusammengenadelt werden.
Die Verbundwerkstoffe können direkt zu dreidimensionalen Fertigteilen in einer Form bei Temperaturen oberhalb des Erweichungspunktes des Thermoplasten verpresst werden. Man kann aber auch ein Halbzeug herstellen, indem der Ver- bundwerkstoff kontinuierlich durch Heißverpressen konsolidiert wird. Dies wird vorzugsweise auf einer Doppelbandpresse durchgeführt; man kann aber auch einen Kalander oder eine Kaschiereinrichtung verwenden. Das Halbzeug weist vorzugsweise eine Dicke von 0,5 bis 5,0, insbesondere von 1 ,0 bis 2,0 mm und ein Flächengewicht von 200 bis 3000, insbesondere von 300 bis 1500 g/m2 auf. Es kann gelagert, transportiert und bei Bedarf zu Fertigteilen weiterverarbeitet werden. Man kann dieses Halbzeug oder auch direkt den erfindungsgemäßen unkonsolidierten Verbundwerkstoff als Decklagen mit leichten Kernlagen, z.B. aus Polypropylenschaumstoff- oder Honigwaben- Platten zu Sandwichteilen verbinden, entweder durch Verkleben oder durch Heißverpressen. Ferner ist es möglich, das Halbzeug mit GMT- oder LFT- Halbzeug zu verbinden.
Die aus den erfindungsgemäßen Verbundwerkstoffen hergestellten Fertigteile zeichnen sich durch eine hohe Festigkeit und Steifigkeit, sowie durch ein geringes Gewicht aus. Sie finden bevorzugt im Kraftfahrzeugbereich Verwendung, z.B. als Verstärkung für Reserveradmulden, Rückwandtüren, Stoßfänger oder Unterböden. Sandwichteile sind besonders leicht und hochsteif. Sie können z.B. als Ladeböden in Lastkraftwagen verwendet werden. Weitere Anwendungsmöglichkeiten sind z.B. für Sportartikel, im Eisenbahnwaggonbau und im Flugzeugbau. Für letzteren werden vorzugsweise Schichtstoffe eingesetzt, bei denen eine Gewebeschicht B aus Kohlenstofffasern nach dem Thermobonding- Verfahren
mit einem Faservlies aus hochtemperaturbeständigen Thermoplasten verbunden werden.
Claims
1. Thermoplastisch verarbeitbarer, flächiger Verbundwerkstoff, bestehend aus
A. mindestens einer Faservliesschicht aus 10 bis 100 Gew.% Thermo- plastfasern und 0 bis 90 Gew.% Verstärkungsfasern mit einem Flächengewicht von 100 bis 2000 g/m2 und
B. mindestens einer Gewebe- oder Gelegeschicht aus Verstärkungsfasern mit einem Flächengewicht von 100 bis 1000 g/m2, dadurch gekennzeichnet, dass die Schichten A und B zusammengenadelt, zusammengenäht oder thermisch miteinander verbunden sind.
2. Verbundwerkstoff nach Anspruch 1 , dadurch gekennzeichnet, dass die Schichten A und B zusammengenadelt sind.
3. Verbundwerkstoff nach Anspruch 1 oder 2, gekennzeichnet durch die Schichtenfolgen A - B - A, A - B oder A - B - A - B - A.
4. Verbundwerkstoff nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Faservliesschicht zu 100% aus Thermoplastfasern besteht.
5. Verbundwerkstoff nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Faservliesschicht zu 30 bis 60 Gew.% aus Thermoplastfasern und zu 70 bis 40 Gew.% aus Verstärkungsfasern besteht.
6. Verbundwerkstoff nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Thermoplastfasern Polypropylenfasern sind.
7. Verbundwerkstoff nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Verstärkungsfasern in der Schicht B und gegebenenfalls in der Schicht
A jeweils Glasfasern sind.
8. Verfahren zu Herstellung des Verbundwerkstoffs nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zunächst die Faservliesschicht A nach dem Krempel- oder Airlay- Verfahren hergestellt wird, und dass dann kontinuierlich eine Gewebe- bzw. Gelegeschicht B mit einer oder zwei Schichten A zusammengeführt und zusammengenadelt, zusammengenäht oder thermisch verbunden wird.
9. Verwendung des Verbundwerkstoffs nach Anspruch 1 oder 2, zur Herstellung von Fertigteilen durch Heißverpressen in einer Form.
10. Verwendung des Verbundwerkstoffs nach Anspruch 1 oder 2 zur Herstellung eines flächigen Halbzeugs einer Dicke von 0,5 bis 5,0 mm durch Heißverpressen in einer Doppelbandpresse.
11. Verwendung des Verbundwerkstoffs nach Anspruch 1 oder 2 als Decklage zur Herstellung von Sandwichteilen durch Verkleben oder Heißverpressen mit Thermoplast- Schaumstoffplatten oder Honigwaben- Platten als Kernlage.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP06721917A EP1901912B1 (de) | 2005-04-20 | 2006-04-20 | Thermoplastisch verarbeitbarer verbundwerkstoff |
AT06721917T ATE510681T1 (de) | 2005-04-20 | 2006-04-20 | Thermoplastisch verarbeitbarer verbundwerkstoff |
PL06721917T PL1901912T3 (pl) | 2005-04-20 | 2006-04-20 | Przetwarzalny termoplastycznie materiał warstwowy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05008635A EP1714772A1 (de) | 2005-04-20 | 2005-04-20 | Thermoplastisch verarbeitbarer Verbundwerkstoff |
EP05008635.4 | 2005-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006111037A1 true WO2006111037A1 (de) | 2006-10-26 |
Family
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PCT/CH2006/000215 WO2006111037A1 (de) | 2005-04-20 | 2006-04-20 | Thermoplastisch verarbeitbarer verbundwerkstoff |
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EP (2) | EP1714772A1 (de) |
AT (1) | ATE510681T1 (de) |
ES (1) | ES2366571T3 (de) |
PL (1) | PL1901912T3 (de) |
WO (1) | WO2006111037A1 (de) |
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EP2500163A1 (de) | 2011-03-18 | 2012-09-19 | Quadrant Plastic Composites AG | Thermoplastisch verformbarer Verbundwerkstoff |
EP2626200A1 (de) | 2012-02-08 | 2013-08-14 | Quadrant Plastic Composites AG | Flächiger Verbundwerkstoff |
EP2636783A1 (de) | 2012-03-09 | 2013-09-11 | Quadrant Plastic Composites AG | Flächiger Verbundwerkstoff |
US20160185077A1 (en) * | 2013-08-06 | 2016-06-30 | Neenah Technical Materials Inc. | Scrimless, Rigid Composite Material |
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DE102016122145A1 (de) * | 2016-11-17 | 2018-05-17 | Cqlt Saargummi Technologies S.À.R.L. | Bahnmaterial zur Bildung von Dachbelägen |
EP3385069A1 (de) | 2017-04-03 | 2018-10-10 | Quadrant Plastic Composites AG | Verfahren zur herstellung eines flächigen verbundbauteils und damit hergestelltes verbundbauteil |
WO2018184992A1 (de) * | 2017-04-03 | 2018-10-11 | Toho Tenax Europe Gmbh | Verfahren zur herstellung eines textilen unidirektionalgewebes |
EP3792044A1 (de) | 2019-09-16 | 2021-03-17 | Mitsubishi Chemical Advanced Materials AG | Verfahren zur herstellung eines leichten, strukturell verstärkten objekts aus thermoplastischem material |
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JP3947560B2 (ja) * | 2005-07-29 | 2007-07-25 | 学校法人同志社 | 繊維強化熱可塑性複合材料の成形方法およびその中間体、および、複合シート |
WO2013091184A1 (zh) * | 2011-12-21 | 2013-06-27 | Ng Ying Yuk | 针刺无纺布、其制造方法和由该无纺布形成的过滤器和吸音材料 |
ES2646713T3 (es) * | 2012-10-02 | 2017-12-15 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Procedimiento para fabricar una pieza moldeada compuesta, en particular una pieza moldeada compuesta de fibras, y pieza moldeada compuesta, en particular pieza moldeada compuesta de fibras |
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DE102019119389A1 (de) * | 2019-07-17 | 2021-01-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Bauteil |
EP4053350B1 (de) | 2021-03-04 | 2024-01-03 | Hauraton GmbH & Co. KG | Lastabtragende halbzeugstruktur |
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Also Published As
Publication number | Publication date |
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ATE510681T1 (de) | 2011-06-15 |
EP1714772A1 (de) | 2006-10-25 |
ES2366571T3 (es) | 2011-10-21 |
PL1901912T3 (pl) | 2011-12-30 |
EP1901912B1 (de) | 2011-05-25 |
EP1901912A1 (de) | 2008-03-26 |
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