DE20120447U1 - Pre-consolidated textile fabrics - Google Patents
Pre-consolidated textile fabricsInfo
- Publication number
- DE20120447U1 DE20120447U1 DE20120447U DE20120447U DE20120447U1 DE 20120447 U1 DE20120447 U1 DE 20120447U1 DE 20120447 U DE20120447 U DE 20120447U DE 20120447 U DE20120447 U DE 20120447U DE 20120447 U1 DE20120447 U1 DE 20120447U1
- Authority
- DE
- Germany
- Prior art keywords
- textile fabric
- binder
- consolidated
- matrix
- fabric according
- 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.)
- Expired - Lifetime
Links
- 239000004744 fabric Substances 0.000 title claims description 46
- 239000004753 textile Substances 0.000 title claims description 44
- 239000011230 binding agent Substances 0.000 claims description 43
- 239000000835 fiber Substances 0.000 claims description 41
- 239000011159 matrix material Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 23
- 239000002131 composite material Substances 0.000 claims description 20
- 239000004593 Epoxy Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000003607 modifier Substances 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- 238000004132 cross linking Methods 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000005007 epoxy-phenolic resin Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 239000002759 woven fabric Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 18
- 238000009745 resin transfer moulding Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000005011 phenolic resin Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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
- D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
-
- 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
- B29C70/48—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 the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
-
- 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
- D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/60—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Laminated Bodies (AREA)
Description
BUSE · MENTZEL · LUDEWIG PatentanwälteBUSE · MENTZEL · LUDEWIG patent attorneys
EUROPEAN PATENT AND TRADEMARK ATTORNEYSEUROPEAN PATENT AND TRADEMARK ATTORNEYS
Postfach 201462 Kleiner Werth 34 Dipl.-Phys. Mentzel PO Box 201462 Kleiner Werth 34 Dipl.-Phys. Mentzel
D-42214 Wuppertal D-42275 Wuppertal Dipl.-Ing. Ludewig D-42214 Wuppertal D-42275 Wuppertal Dipl.-Ing. Ludewig
J &ogr; Wuppertal, J &ogr; Wuppertal,
Kennwort: „Epoxidharz-Schiebeverfestigung' Keyword: "Epoxy resin slip hardening"
C. Cramer, Weberei, Heek-Nienborg, GmbH & Co. KG , Weberstraße 21, 48619 Heek-NienborgC. Cramer, Weaving, Heek-Nienborg, GmbH & Co. KG, Weberstraße 21, 48619 Heek-Nienborg
Vorverfestigtes textiles FlächengebildePre-consolidated textile fabric
Die vorliegende Erfindung betrifft ein vorverfestigtes textiles Flächengebilde, seine Verwendung zur Herstellung vonThe present invention relates to a pre-consolidated textile fabric, its use for the production of
Faserverbundwerkstoffen und einen Faserverbundwerkstoff umfassend eine mehrlagige textile Flächengebildeschicht, die mindestens zwei übereinander angeordnete Lagen des vorverfestigten textlien Flächengebildes enthält.Fiber composite materials and a fiber composite material comprising a multi-layer textile fabric layer which contains at least two layers of the pre-consolidated textile fabric arranged one above the other.
Seit vielen Jahren sind faserverstärkte Kunstharzprodukte bekannt, die in den verschiedensten Industriebereichen verwendet werden. Üblicherweise wird ein solcher Faserverbündwerkstoff gebildet, indem ein Fasergewebe mit einer Harzzusammensetzung imprägniert wird, die ein Gemisch aus beispielsweise einem Epoxidharz, einem Reaktanten (Härtungsmittel) und einem Beschleuniger (Härtungskatalysatoren) umfasst. Diese Harzmatrix wird in flüssiger Form entweder in einem Handlamimerungsverfahren bzw. kontinuierlichen Laminierungsverfahren, zum Herstellen von Prepregs oder in einem Harzinjektionsverfahren (RTM - resin transfer moulding) aufgetragen. Die endgültige Form des Faserverbundwerkstoffes wird durch Aufeinanderlegen mehrerer Lagen dieser imprägnierten Fasergebilde, Pressen und Aushärten erhalten. Bei dem konventionellen RTM-VerfahrenFiber-reinforced synthetic resin products have been known for many years and are used in a wide variety of industries. Typically, such a fiber composite material is formed by impregnating a fiber fabric with a resin composition that comprises a mixture of, for example, an epoxy resin, a reactant (curing agent) and an accelerator (curing catalysts). This resin matrix is applied in liquid form either in a hand lamination process or continuous lamination process to produce prepregs or in a resin injection process (RTM - resin transfer molding). The final shape of the fiber composite material is obtained by placing several layers of these impregnated fiber structures on top of each other, pressing and curing. In the conventional RTM process
STADTSPARKASSE WUPPERTAL 765677 - BLZ 33050000 TELEFON +49(0)2 02/25535-0STADTSPARKASSE WUPPERTAL 765677 - BLZ 33050000 TELEPHONE +49(0)2 02/25535-0
CREDIT-U. VOLKSBANKEGWUPPERTAL 103490014,- BLJ.330£OJD98 ; J TELEFAX +49(0)2 02/255 35-29CREDIT-U. VOLKSBANKEGWUPPERTAL 103490014,- BLJ.330£OJD98 ; J TELEFAX +49(0)2 02/255 35-29
CREDIT-U. VOLKSBAN^EC1JiCPiERTAV .fBA?* D£f43396059J01f34S0814: ; ; e-flaiJ: PAe @ patbumelu.deCREDIT-U. VOLKSBAN^EC 1 JiCPiERTAV .fBA?* D£f43396059J01f34S0814: ; ; e-flaiJ: PAe @ patbumelu.de
COMMERZBANK AG WJPPEICML 41298iÄi BÄZ33J)400<y· I '. "',·"·.· '. . . hf^/Zwww.patbumeiu.deCOMMERZBANK AG WJPPEICML 41298iÄi BÄZ33J)400<y· I '. "',·"·.· '. . . hf^/Zwww.patbumeiu.de
POSTBANK KÖLN 7263£jflß*-&W 370ldW0" .·* ··· ' *POSTBANK COLOGNE 7263£jflß*-&W 370ldW0" .·* ··· ' *
VAT-No. DE 121035 988VAT No. DE 121035 988
4 it4 it · »· *« i· »· *« i
BUSE · MENTZEL · LUDEWIGBUSE · MENTZEL · LUDEWIG
werden Schichten eines Fasermaterials in eine Form eingelegt. Ein hitzehärtbares Matrixharz in die Form injiziert und das Harz ausgehärtet, um einen fertigen Faserverbundwerkstoff zu liefern. Es ist jedoch schwierig, diese Faserschichten in die Form einzulegen. Bei einem verbessertem RTM-Verfahren werden die Schichten des Fasermaterials mit einem klebrigmachenden Pulver besprüht bzw. das Binderpulver aufgestreut, welches beim Erhitzen auf der Oberfläche der Fasergebilde schmilzt und sich beim Abkühlen verfestigt. Derartig vorverfestigte Faserschichten lassen sich besser in die RTM-Form einlegen und drapieren. Anschließend wird dann das Matrixharz zugesetzt, welches die gleichen chemischen Bestandteile wie das verwendete Binderpulver aufweist, beispielsweise ein Epoxid mit Beschleuniger und Reaktant. Beim entstehenden Faserverbundprodukt ist jedoch das Matrixharz nicht mit der Binderschicht vernetzt, da die Binderschicht bereits ausgehärtet ist, bevor die vorverfestigten Faserlagen in der Form mit der Matrix in Berührung kommen. Dies bedeutet, daß sich im Faserverbundteil jeweils eine Grenzschicht zwischen Faser und Binder, Faser und Matrix, Binder und Matrix ausbilden kann. Die Binderschicht liegt in der Matrix als eigene störende Phase vor. Diese Matrixstörung wirkt sich nachteilig auf die Festigkeit und Stabilität des Faserverbundteils aus.Layers of a fiber material are placed in a mold. A heat-curable matrix resin is injected into the mold and the resin is cured to produce a finished fiber composite material. However, it is difficult to place these fiber layers in the mold. In an improved RTM process, the layers of the fiber material are sprayed with a tackifying powder or the binder powder is sprinkled on, which melts on the surface of the fiber structure when heated and solidifies when cooled. Fiber layers pre-consolidated in this way are easier to place in the RTM mold and drape. The matrix resin is then added, which has the same chemical components as the binder powder used, for example an epoxy with accelerator and reactant. In the resulting fiber composite product, however, the matrix resin is not cross-linked with the binder layer, since the binder layer has already hardened before the pre-consolidated fiber layers in the mold come into contact with the matrix. This means that a boundary layer can form between fiber and binder, fiber and matrix, and binder and matrix in the fiber composite part. The binder layer is present in the matrix as a separate disruptive phase. This matrix disruption has a detrimental effect on the strength and stability of the fiber composite part.
Aufgabe der Erfindung ist es, ein vorverfestigtes Fasergebilde zur Verfügung zu stellen, wobei die Verfestigung dieses Fasergebildes in einem Faserverbundwerkstoff keine störenden Grenzflächen bildet.The object of the invention is to provide a pre-consolidated fiber structure, wherein the consolidation of this fiber structure in a fiber composite material does not form any disturbing interfaces.
Diese Aufgabe wird mit einem vorverfestigten textlien Flächengebilde mit den Merkmalen des Anspruchs 1 gelöst. Zur Vorverfestigung des textlien Flächengebildes werden ebenfalls klebrigmachende 'Binderpulver auf das textile Flächengebilde aufgestreut bzw. als Binderpulverlösung aufgesprüht, die durch Erhitzen aufschmelzen und beim Abkühlen auf der Oberfläche des textlien Flächengebildes haften. Die Vorverfestigung dieses textlien Flächengebildes besteht jedoch erfindungsgemäß aus einer Binderschicht, die in der Lage ist, sich mit der Matrix zu vernetzen, d.h.This object is achieved with a pre-consolidated textile fabric with the features of claim 1. To pre-consolidate the textile fabric, tackifying binder powders are also sprinkled onto the textile fabric or sprayed on as a binder powder solution, which melt when heated and adhere to the surface of the textile fabric when cooled. However, the pre-consolidation of this textile fabric consists according to the invention of a binder layer which is able to crosslink with the matrix, i.e.
BÜSE · MENTZEL · LUDEWIGBÜSE · MENTZEL · LUDEWIG
diese Binderschicht ist nach dem Aufschmelzen und Abkühlen noch nicht ausgehärtet. Sie weist thermoplastische Eigenschaften auf und ist verformbar. Dies hat insbesondere Vorteile für die Weiterverarbeitung des vorverfestigten textlien Flächengebildes, denn solche textlien Flächengebilde sind gut drapierbar bzw. bei anderen Herstellungsverfahren gut handhabbar. Im Gegensatz zu den bekannten Binderpulvern die beispielsweise aus Epoxid, Beschleuniger und Reaktant bestehen, enthält das Binderpulver nach dieser Erfindung ausschließlich ein Epoxid, keinen Beschleuniger oder Reaktanten. Beim Aufschmelzen auf dem textlien Flächengebilde kann das reine Epoxid nicht vernetzen. Dieser Binder weist jedoch die Möglichkeit auf, mit der Epoxidmatrix in der RTM-Form zu einer einheitlichen Phase zu vernetzen, d.h. der Epoxidbinder wird beim Vernetzen Teil der Matrix. Es entstehen keine störenden Grenzflächen durch diese Binderschicht. Die Matrix im ausgehärteten Faserverbundteil bildet eine homogene Phase. Ein solches Faserverbundteil weist vorteilhafterweise hohe Festigkeiten und Stabilitäten auf.This binder layer is not yet hardened after melting and cooling. It has thermoplastic properties and is deformable. This has particular advantages for the further processing of the pre-consolidated textile fabric, because such textile fabrics are easy to drape and are easy to handle in other manufacturing processes. In contrast to the known binder powders which consist of epoxy, accelerator and reactant, for example, the binder powder according to this invention contains only an epoxy, no accelerator or reactant. When melted onto the textile fabric, the pure epoxy cannot crosslink. However, this binder has the option of crosslinking with the epoxy matrix in the RTM form to form a uniform phase, i.e. the epoxy binder becomes part of the matrix during crosslinking. No disruptive interfaces are created by this binder layer. The matrix in the hardened fiber composite part forms a homogeneous phase. Such a fiber composite part advantageously has high strengths and stability.
Das reine Epoxidbinderpulver kann als trockenes Pulver auf das textile Flächengebilde aufgestreut werden und in einem Ofen oder über Wärmestrahler zum Aufschmelzen gebracht werden, so daß es eine haftende Oberflächenschicht auf dem textlien Flächengebilde bildet. Es ist jedoch auch möglich, das Epoxidbinderpulver in einem Lösungsmittel, wie beispielsweise Azeton, gleichmäßig durch Rühren zu verteilen und diese Epoxidbinderlösung auf die Oberfläche des textlien Flächengebildes aufzusprühen. Die Haftung wird ebenfalls durch Erwärmung erzielt, wobei das Lösungsmittel verdampft und die Binderpulverpartikel aufschmelzen und an dem textiles Flächengebilde haften.The pure epoxy binder powder can be sprinkled onto the textile fabric as a dry powder and melted in an oven or using a heat lamp so that it forms an adhesive surface layer on the textile fabric. However, it is also possible to evenly distribute the epoxy binder powder in a solvent such as acetone by stirring and spray this epoxy binder solution onto the surface of the textile fabric. Adhesion is also achieved by heating, whereby the solvent evaporates and the binder powder particles melt and adhere to the textile fabric.
Als Binderpulver sind nicht nur Epoxidharzbinderpulver einsetzbar, sondern auch beispielsweise Phenolharzbinderpulver oderNot only epoxy resin binder powders can be used as binder powders, but also phenolic resin binder powders or
Polyesterbinderpulver. Wesentlich ist nur, daß ein matrixgleicher Binder verwendet wird. Dies bedeutet, daß beim Einsatz einer Phenolharzmatrix bestehend aus Phenolharz, Reaktant und Beschleuniger diePolyester binder powder. It is only important that a matrix-like binder is used. This means that when using a phenolic resin matrix consisting of phenolic resin, reactant and accelerator, the
Vorverfestigung des textlien Flächengebildes mit einem Phenolharzbinder erfolgen muß, damit die vernetzte ausgehärtete Matrix eine homoge Phase bildet. Wird dagegen eine Epoxidharzmatrix für das Faserverbundteil vorgesehen, ist zur Vorverfestigung des textlien Flächengebildes ein Epoxidharzbinder zu verwenden.The textile fabric must be pre-consolidated with a phenolic resin binder so that the cross-linked, hardened matrix forms a homogeneous phase. If, however, an epoxy resin matrix is intended for the fiber composite part, an epoxy resin binder must be used to pre-consolidate the textile fabric.
Das textiles Flächengebilde, beispielsweise ein Fasergewebe oder eine Fasergelegeschicht aus Multifilamentfasern, kann aus verschiedensten Fasern bestehen, beispielsweise Glasfasern, Aramidfasern, Siliziumkarbid-Fasern und/oder Kohlenstoff-Fasern. Vorzugsweise werden jedoch Kohlenstoffgewebe aus Multifilamenten eingesetzt.The textile fabric, for example a fiber fabric or a fiber layer made of multifilament fibers, can consist of a wide variety of fibers, for example glass fibers, aramid fibers, silicon carbide fibers and/or carbon fibers. However, carbon fabrics made of multifilaments are preferably used.
Das erfindungsgemäße vorverfestigte textiles Flächengebilde kann bei den verschiedensten Herstellungsverfahren für Faserverbundwerkstoffe eingesetzt werden. Besondere Vorteile zeigen sich bei dem Harzinjektionsverfahren (RTM-Verfahren), da sich dieses vorverfestigte textile Flächengebilde besonders gut in die RTM-Form einlegen und drapieren läßt.The pre-consolidated textile fabric according to the invention can be used in a wide variety of manufacturing processes for fiber composite materials. Particular advantages are evident in the resin injection process (RTM process), since this pre-consolidated textile fabric can be inserted and draped particularly well in the RTM mold.
Die Herstellung eines solchen Faserverbundwerkstoffes umfasst folgende Verfahrensschritte. Das Herstellen einer der Form des fertigen Faserverbundteils entsprechenden Faservorform, das Imprägnieren dieses textlien Flächengebildes mit dem nicht vernetzenden Binderpulver, das Verfestigen dieser Faservorform durch Erwärmen, wobei die Binderpartikel aufschmelzen und an der Oberfläche der Fasern haften. Diese vorverfestigte Faservorform wird in einer entsprechenden RTM-Spritzgießform angeordnet und das Matrixharz in dünnflüssigen Zustand eingespritzt. Unter Anwendung von Druck und Temperatur erfolgt in der Form eine Vernetzung des Epoxidharzes. Während dieser Vernetzung unter Einwirkung von Wärme geht das Harz sukzessiv aus dem flüssigen Zustand in den erstarrten und schließlich in den festen Zustand über. Untersucht .man ein solches Faserverbundteil, so ist festzustellen, daß die Epoxidbinderschicht mit der Epoxidharzmatrix vernetzt, zwischen derThe production of such a fiber composite material comprises the following process steps: The production of a fiber preform corresponding to the shape of the finished fiber composite part, the impregnation of this textile fabric with the non-crosslinking binder powder, the solidification of this fiber preform by heating, whereby the binder particles melt and adhere to the surface of the fibers. This pre-solidified fiber preform is placed in a corresponding RTM injection mold and the matrix resin is injected in a thin liquid state. The epoxy resin is crosslinked in the mold using pressure and temperature. During this crosslinking under the influence of heat, the resin gradually changes from the liquid state to the solidified state and finally to the solid state. If one examines such a fiber composite part, it can be seen that the epoxy binder layer is crosslinked with the epoxy resin matrix, between the
BUSE · MENTZEL · LUDEWIGBUSE · MENTZEL · LUDEWIG
Matrix und dem Binder demzufolge keine Grenzflächen ausgebildet werden und keine Störung der Matrix vorliegt.Consequently, no interfaces are formed between the matrix and the binder and there is no disturbance of the matrix.
Es ist selbstverständlich möglich, in bekannter Weise der Epoxidmatrix Modifizierungsmittel zur Verbesserung der mechanischen Eigenschaften zuzusetzen. Dies kann unter anderem eine Verbesserung der Zähigkeit betreffen. Aber auch feuerhemmende Mittel oder Füllstoffe können der Matrix zugesetzt werden. Diese Modifizierungsmittel werden in der Regel in flüssigem Matrixharz homogen dispergiert. Es ist ebenso möglich, diese Modifizierungsmittel dem Binderpulver beizumischen bzw. diese Modifizierungsmittel sowohl dem Binderpulver als auch der flüssigen Matrix zuzusetzen.It is of course possible to add modifiers to the epoxy matrix in a known manner to improve the mechanical properties. This can, among other things, improve toughness. But fire retardants or fillers can also be added to the matrix. These modifiers are usually homogeneously dispersed in liquid matrix resin. It is also possible to mix these modifiers into the binder powder or to add these modifiers to both the binder powder and the liquid matrix.
Claims (12)
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10239325A1 (en) * | 2002-08-27 | 2004-03-18 | Man Technologie Ag | Device, tool arrangement and method for producing components from fiber composite materials by means of temperature and pressure controlled injection technology |
DE10306345A1 (en) * | 2003-02-15 | 2004-09-02 | Institut Für Verbundwerkstoffe Gmbh | Filament winding process for manufacture of symmetric fiber reinforced preforms involves controlled infusion of a binder onto a roving during winding |
DE20307223U1 (en) * | 2003-05-08 | 2004-09-09 | C. Cramer, Weberei, Heek-Nienborg, Gmbh & Co. Kg | Frequency absorbing, reflecting and permeable sheet structure, useful in production of composites, comprising textile carrier coated with mixture of thermoplastic powder and conductive short fibers or powder |
WO2005095080A1 (en) | 2004-03-31 | 2005-10-13 | Toho Tenax Europe Gmbh | Epoxy resin impregnated yarn and the use thereof for producing a preform |
DE102004060001A1 (en) * | 2004-08-21 | 2006-03-09 | Saertex Wagener Gmbh & Co Kg | Process for producing a textile from synthetic fibers |
DE202005003045U1 (en) * | 2005-02-23 | 2006-07-06 | Eisele, Michael, Dipl.-Ing. | Processing aid for the resin injection process |
DE102006023865A1 (en) * | 2006-05-19 | 2007-11-22 | Eads Deutschland Gmbh | Production of fiber-reinforced component, e.g. thick laminate, by partially hardening stack of impregnated fibrous layers, stacking again, compacting and combining with further stack |
DE102008004112A1 (en) * | 2008-01-11 | 2009-07-16 | Saertex Gmbh & Co. Kg | Semifinished textile product with at least one surface provided with an adhesive |
DE102009044834A1 (en) * | 2009-12-09 | 2011-06-16 | Saertex Gmbh & Co. Kg | Process for producing a preform for a fiber composite component |
DE102008063545B4 (en) * | 2008-12-09 | 2012-03-01 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Multiaxial fabric, process for producing a fiber composite plastic and fiber composite plastic |
DE102015000947A1 (en) | 2014-01-28 | 2015-07-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | A process for producing a fiber-reinforced polymer molding having a plurality of reinforcing fiber layers and preform of such a polymer molding |
WO2021121886A1 (en) * | 2019-12-18 | 2021-06-24 | ThyssenKrupp Carbon Components GmbH | Method for producing a fibre composite body and fibre composite body |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3835929A1 (en) | 1988-10-21 | 1990-04-26 | Kirson Gmbh | Process for mutually joining lattice threads |
DE4229546A1 (en) | 1992-09-04 | 1994-03-10 | Milliken Europ Nv | Textile-reinforced composites prodn. - by wrapping reinforcing fibre with lower-melting matrix fibre to form yarn which is then moulded with heat and/or pressure |
EP1145841A1 (en) | 1998-10-12 | 2001-10-17 | Nitto Boseki Co., Ltd. | Reinforcing fiber base for composite material |
-
2001
- 2001-12-18 DE DE20120447U patent/DE20120447U1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3835929A1 (en) | 1988-10-21 | 1990-04-26 | Kirson Gmbh | Process for mutually joining lattice threads |
DE4229546A1 (en) | 1992-09-04 | 1994-03-10 | Milliken Europ Nv | Textile-reinforced composites prodn. - by wrapping reinforcing fibre with lower-melting matrix fibre to form yarn which is then moulded with heat and/or pressure |
EP1145841A1 (en) | 1998-10-12 | 2001-10-17 | Nitto Boseki Co., Ltd. | Reinforcing fiber base for composite material |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10239325A1 (en) * | 2002-08-27 | 2004-03-18 | Man Technologie Ag | Device, tool arrangement and method for producing components from fiber composite materials by means of temperature and pressure controlled injection technology |
DE10239325B4 (en) * | 2002-08-27 | 2011-06-01 | Mt Aerospace Ag | Device, tool arrangement and method for the production of components made of fiber composite materials by means of temperature and pressure controlled injection technique |
DE10306345B4 (en) * | 2003-02-15 | 2010-02-25 | Institut Für Verbundwerkstoffe Gmbh | Method for producing a rotationally symmetrical fiber-reinforced preform |
DE10306345A1 (en) * | 2003-02-15 | 2004-09-02 | Institut Für Verbundwerkstoffe Gmbh | Filament winding process for manufacture of symmetric fiber reinforced preforms involves controlled infusion of a binder onto a roving during winding |
DE20307223U1 (en) * | 2003-05-08 | 2004-09-09 | C. Cramer, Weberei, Heek-Nienborg, Gmbh & Co. Kg | Frequency absorbing, reflecting and permeable sheet structure, useful in production of composites, comprising textile carrier coated with mixture of thermoplastic powder and conductive short fibers or powder |
US8273454B2 (en) | 2004-03-31 | 2012-09-25 | Toho Tenax Europe Gmbh | Epoxy resin impregnated yarn and the use thereof for producing a preform |
WO2005095080A1 (en) | 2004-03-31 | 2005-10-13 | Toho Tenax Europe Gmbh | Epoxy resin impregnated yarn and the use thereof for producing a preform |
DE102004060001A1 (en) * | 2004-08-21 | 2006-03-09 | Saertex Wagener Gmbh & Co Kg | Process for producing a textile from synthetic fibers |
DE202005003045U1 (en) * | 2005-02-23 | 2006-07-06 | Eisele, Michael, Dipl.-Ing. | Processing aid for the resin injection process |
WO2006089696A1 (en) | 2005-02-23 | 2006-08-31 | Michael Eisele | Method for production of laminates by the resin injection method and process adjunct for the same |
DE102006023865B4 (en) * | 2006-05-19 | 2012-02-16 | Eads Deutschland Gmbh | Process for producing a fiber-reinforced component |
DE102006023865A1 (en) * | 2006-05-19 | 2007-11-22 | Eads Deutschland Gmbh | Production of fiber-reinforced component, e.g. thick laminate, by partially hardening stack of impregnated fibrous layers, stacking again, compacting and combining with further stack |
DE102008004112A1 (en) * | 2008-01-11 | 2009-07-16 | Saertex Gmbh & Co. Kg | Semifinished textile product with at least one surface provided with an adhesive |
US8609557B2 (en) | 2008-01-11 | 2013-12-17 | Saertex Gmbh & Co. Kg | Textile semifinished product with at least one surface provided with an adhesive |
DE102008063545B4 (en) * | 2008-12-09 | 2012-03-01 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Multiaxial fabric, process for producing a fiber composite plastic and fiber composite plastic |
DE102008063545B9 (en) * | 2008-12-09 | 2012-07-19 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Multiaxial fabric, process for producing a fiber composite plastic and fiber composite plastic |
DE102008063545C5 (en) * | 2008-12-09 | 2015-04-30 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Multiaxial fabric, process for producing a fiber composite plastic and fiber composite plastic |
DE102009044834A1 (en) * | 2009-12-09 | 2011-06-16 | Saertex Gmbh & Co. Kg | Process for producing a preform for a fiber composite component |
DE102009044834B4 (en) * | 2009-12-09 | 2015-08-20 | Saertex Gmbh & Co. Kg | Process for producing a preform for a fiber composite component, process for producing a semi-finished textile product for a preform and textile semifinished product |
DE102015000947A1 (en) | 2014-01-28 | 2015-07-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | A process for producing a fiber-reinforced polymer molding having a plurality of reinforcing fiber layers and preform of such a polymer molding |
WO2021121886A1 (en) * | 2019-12-18 | 2021-06-24 | ThyssenKrupp Carbon Components GmbH | Method for producing a fibre composite body and fibre composite body |
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