EP3452651A1 - Produit plat non-tissé textile pouvant être calandré - Google Patents

Produit plat non-tissé textile pouvant être calandré

Info

Publication number
EP3452651A1
EP3452651A1 EP17721088.7A EP17721088A EP3452651A1 EP 3452651 A1 EP3452651 A1 EP 3452651A1 EP 17721088 A EP17721088 A EP 17721088A EP 3452651 A1 EP3452651 A1 EP 3452651A1
Authority
EP
European Patent Office
Prior art keywords
fibers
nonwoven
product according
range
fiber
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.)
Granted
Application number
EP17721088.7A
Other languages
German (de)
English (en)
Other versions
EP3452651B1 (fr
Inventor
Cordula CLEFF
Jan Maidorn
Hagen Hohmuth
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.)
Tenowo GmbH
Original Assignee
Tenowo 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 Tenowo GmbH filed Critical Tenowo GmbH
Publication of EP3452651A1 publication Critical patent/EP3452651A1/fr
Application granted granted Critical
Publication of EP3452651B1 publication Critical patent/EP3452651B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/4209—Inorganic fibres
    • D04H1/4242—Carbon 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

Definitions

  • the invention relates to a rollable textile nonwoven fabric product consisting of a mixture of recycled carbon fibers and thermoplastic fibers, which by means of a batt
  • the fiber composite material comprises fibers and at least one
  • thermoplastic matrix material From fibrous waste or old parts, the aforementioned fibers are isolated and with
  • thermoplastic fibers and laid flat in a carding process, so that a batt is produced.
  • a plate material in the form of a pressing step then takes place under the action of heat. It is known carbon fibers as high performance
  • 2011 / 101094A1 proposed a denomination of textile foreign fibers, such as e.g. Polypropylene, in order to increase the fiber orientation degree of the carbon fibers.
  • textile foreign fibers such as e.g. Polypropylene
  • auxiliary fibers are exploited for the targeted influencing of the degree of fiber orientation of carbon fibers.
  • the oriented carbon fibers are heat-bonded to an amount of thermoplastic fibers
  • the pressing takes place at a pressure of 400 N / cm 2 , in the sense of compaction.
  • thermoplastic component used is a pulp of polyhydroxyether use.
  • EP 1 772 258 B1 discloses a laminate construction of a plastic part with coarse fibers of> 10 dtex.
  • reinforcing fibers Among other things, carbon fibers are considered.
  • Carbon fibers and thermoplastic fibers which has an open-pored nonwoven structure, so that a subsequent further treatment, e.g. Soaking with a resin is possible in a simple manner.
  • a subsequent further treatment e.g. Soaking with a resin is possible in a simple manner.
  • nonwoven sheet product used
  • Carbon fibers obtained in their original consistency i. It is an essential goal, on the one hand to keep the carbon fiber content as high as possible, on the other hand, but also the mentioned
  • the blending proportion of the thermoplastic fibers is in the range of 5% to 40% by weight and the carbon fiber content is in the range of 60% to 95% by weight, with thermal consolidation to avoid carbon fiber damage under low pressure ⁇ 20 N / cm 2 is carried out in such a way that the desired open-pored nonwoven structure is maintained.
  • the fiber fineness of the carbon fibers used is in the range ⁇ 1 dtex.
  • the cut length of the carbon fibers is in the range between 30 mm and 80 mm.
  • the fiber fineness of the thermoplastic fibers is in the range of 1.0 to 4.0 dtex.
  • the cut length of the thermoplastic fibers is in the range between 30 mm and 70 mm.
  • the fiber mixture is subjected to solidification by increasing the temperature in the range up to 200 ° C and subsequent cooling, wherein melting of the thermoplastic fibers is prevented, but the fibers are melted for connection to the carbon fibers.
  • the resulting nonwoven sheet product has an open-pored, good potion property, but also very uniform, high quality surface.
  • a homogeneous distribution of the fabrics in the batt is provided to a uniform
  • the carbon fibers are not or only slightly damaged by the measures according to the invention during the solidification process, so that it does not lead to a reduction in strength in the later
  • the batt is produced by means of carding.
  • the proportion of carbon fibers is chosen as high as possible, since in this respect the admixed fraction of thermoplastics is a foreign component.
  • the thermoplastic fiber content used are fibers made of polyamide, polypropylene, polyester or other materials, but also fibers based on a bicomponent structure, preferably of polyethylene terephthalate. In a bicomponent fiber, one of the components has a lower melting point than the other, second component.
  • the recycled carbon fibers used can be, for example, cut roving residues, pre-dissolved scrub or fabric remnants, edge sections, Fibers derived from carbon fiber-reinforced plastics and there by thermal, chemical or other treatment
  • the solidification unit is a hot calender, a calender, a calender, a shirt collar press, a belt press or a calender
  • the resulting product is inventively wound with low tension and gently by means of a climbing winder.
  • the weight of the obtained nonwoven fabric is in the range of 50 to 200 g / m 2 , preferably in the range of 80 to 150 g / m 2 .
  • the strength properties of the nonwoven sheet product are in
  • Carbon fiber content other components of high-performance pulp from recycling processes are mixed. Here it can be
  • thermoplastic fibers from 5% by weight to a maximum of 40% by weight
  • the nonwoven sheet may be pre-impregnated with resin so as to obtain a prepreg.
  • nonwoven surface product Possible application examples for the use of the nonwoven surface product are applications in the field of the automotive sector, in particular of the interior, the visible side cover of a hood of a
  • a fiber mixture of 90% marginal cut of a multiaxial gel production and 10% polyester based bicomponent fibers are mixed. This mixture is laid by means of carding and crosslayer to a nonwoven. Subsequently, the web is solidified under minimal pressure and at a temperature ⁇ 200 ° C. The resulting nonwoven fabric has a strength in the longitudinal direction of> 1.7 N / cm 2 , with a basis weight of 150 g / m 2 . The nonwoven fabric thus obtained serves as a fiber reinforcement for a polyester resin matrix, which is then formed into a plate having a ⁇ surface quality.
  • thermoplastic fibers are not completely melted or liquefied, but only fused to effect bonding with the carbon fibers.
  • the low pressure application in the range of ⁇ 20 N / cm 2 does not result in undesirable densification of the material, but merely serves to smooth the surface of the material and to promote the bond between the thermoplastic fibers and the carbon fibers. Fiber damage is virtually eliminated by this treatment.
  • the pile layer of the fiber blend using the carding method can be paneled according to possibly higher desired basis weights.
  • the bonding of the fibers with each other takes place at temperatures of up to 200 ° C.
  • the nonwoven fabric according to the invention can be used as surface product or as
  • Reinforcement material for other composite materials are used, but also used as an intermediate layer or structural reinforcement in areas where no high tensile forces are required. Due to the lack of structuring and the high fiber resolution, class A surface properties are achieved. There no

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonwoven Fabrics (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

L'invention concerne un produit plat non-tissé textile pouvant être calandré, constitué d'un mélange de fibres de carbone recyclées et de fibres thermoplastiques, lesquelles sont déposées au moyen d'un procédé de cardage pour former un voile de carde, soumises à une formation de non-tissé et ensuite consolidées thermiquement. Selon l'invention, la proportion de mélange des fibres thermoplastiques est comprise dans la plage de 5 % en poids à 40 % en poids et la proportion de fibres de carbone est comprise dans la plage de 60 % en poids à 95 % en poids, la consolidation thermique s'effectuant à une faible pression ≤ 20 N/cm² pour empêcher des endommagements des fibres de carbone, de telle sorte qu'une structure de non-tissé à pores ouverts soit obtenue.
EP17721088.7A 2016-05-04 2017-04-27 Produit plat non-tissé textile pouvant être enroulable Active EP3452651B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202016002901 2016-05-04
DE202016003587.9U DE202016003587U1 (de) 2016-05-04 2016-06-07 Rollfähiges textiles Vliesstoff-Flächenprodukt
PCT/EP2017/060000 WO2017191024A1 (fr) 2016-05-04 2017-04-27 Produit plat non-tissé textile pouvant être calandré

Publications (2)

Publication Number Publication Date
EP3452651A1 true EP3452651A1 (fr) 2019-03-13
EP3452651B1 EP3452651B1 (fr) 2020-10-14

Family

ID=56410201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17721088.7A Active EP3452651B1 (fr) 2016-05-04 2017-04-27 Produit plat non-tissé textile pouvant être enroulable

Country Status (3)

Country Link
EP (1) EP3452651B1 (fr)
DE (1) DE202016003587U1 (fr)
WO (1) WO2017191024A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12053908B2 (en) 2021-02-01 2024-08-06 Regen Fiber, Llc Method and system for recycling wind turbine blades

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113930A1 (de) 1981-04-07 1982-10-28 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Verfahren zur herstellung von gelegen fuer thermoplastische verbundwerkstoffe mit ausgerichteten verstaerkungsfasern
DE102005048603A1 (de) 2005-10-06 2007-04-26 J.H. Ziegler Gmbh & Co. Kg Mit Kunststoff infiltrierbares Vlieslaminat für die Herstellung von faserverstärkten Kunststoffteilen
PL2152947T3 (pl) * 2007-06-01 2013-03-29 Formfiber Denmark Aps Nawarstwiany pneumatycznie włókninowy produkt włóknisty zawierający włókna z recyklowanego materiału
DE102010008370A1 (de) 2010-02-17 2011-08-18 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V., 07407 Verfahren zur Herstellung eines plattenförmigen Halbzeugs aus Faserverbundwerkstoff
ITRM20120118A1 (it) * 2012-03-26 2013-09-27 Agenzia Naz Per Le Nuove Tecn Ologie L Ener Metodo per la realizzazione di feltri da fibre di carbonio di riciclo.
DE102013226921A1 (de) * 2013-12-20 2015-06-25 Sgl Automotive Carbon Fibers Gmbh & Co. Kg Vliesstoff aus Carbonfasern und thermoplastischen Fasern

Also Published As

Publication number Publication date
DE202016003587U1 (de) 2016-06-23
WO2017191024A1 (fr) 2017-11-09
EP3452651B1 (fr) 2020-10-14

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