EP1743964B1 - Corde - Google Patents

Corde Download PDF

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Publication number
EP1743964B1
EP1743964B1 EP05015392A EP05015392A EP1743964B1 EP 1743964 B1 EP1743964 B1 EP 1743964B1 EP 05015392 A EP05015392 A EP 05015392A EP 05015392 A EP05015392 A EP 05015392A EP 1743964 B1 EP1743964 B1 EP 1743964B1
Authority
EP
European Patent Office
Prior art keywords
core
cord according
cord
modulus
matrix
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
Application number
EP05015392A
Other languages
German (de)
English (en)
Other versions
EP1743964A1 (fr
Inventor
Klaus Peter Schwung
Bernd Dr. Wohlmann
Maria Gemma Martinus Wilhelmus Peters
Johannes Theodorus Petronella Janssen
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.)
Teijin Carbon Europe GmbH
Teijin Aramid BV
Original Assignee
Toho Tenax Europe GmbH
Teijin Aramid BV
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
Priority to DE502005006007T priority Critical patent/DE502005006007D1/de
Application filed by Toho Tenax Europe GmbH, Teijin Aramid BV filed Critical Toho Tenax Europe GmbH
Priority to AT05015392T priority patent/ATE414807T1/de
Priority to EP05015392A priority patent/EP1743964B1/fr
Priority to PL05015392T priority patent/PL1743964T3/pl
Priority to JP2006192632A priority patent/JP2007023473A/ja
Priority to KR1020060065859A priority patent/KR20070009443A/ko
Priority to US11/487,426 priority patent/US20070169458A1/en
Priority to CN2006101062693A priority patent/CN1896352B/zh
Publication of EP1743964A1 publication Critical patent/EP1743964A1/fr
Application granted granted Critical
Publication of EP1743964B1 publication Critical patent/EP1743964B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/404—Yarns or threads coated with polymeric solutions
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/48—Tyre cords
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers

Definitions

  • the invention relates to a cord consisting of a core and a sheath.
  • Such a cord is for example in EP 1 411 159 described in which the core is made of glass fibers and the sheath of aramid yarns. This cord serves to reinforce elastomeric materials such as tires or belts.
  • cords which are at least comparable or better in their properties with the known cords.
  • such cords should ensure the longest possible service life of composite materials reinforced with such cords.
  • the cords are resistant to oil and / or hydrolysis resistant.
  • the object of the present invention is to provide further cords which are suitable for reinforcing elastomeric materials.
  • the cords should ensure a long service life of the elastomeric material reinforced with such cords.
  • cords are to be provided with a good resistance to hydrolysis.
  • a cord is to be provided, which is inexpensive to produce.
  • the object of the invention is achieved by a cord comprising a core and a sheath, wherein the core contains high modulus fibers embedded in a matrix which is at least predominantly sheathed with the sheath-forming fibers and wherein the matrix of the core is a thermoplastic.
  • the core serves as a strength carrier, which is characterized in particular by high dimensional stability.
  • Such a cord can be produced for example in such a way that the high modulus fibers are impregnated with the matrix material. Thereafter, the core is wrapped, for example, with staple fibers, after which then the staple fibers form the sheath.
  • At least one multifilament yarn is preferred as the fibers forming the sheath, which is wound around the core.
  • the wrapping is preferably carried out such that after wrapping the core covered as well as possible, that is as possible no longer visible. If several multifilament yarns are used to produce the jacket, they can be wound in the same direction and / or in opposite directions around the core. Also, multiple multifilament yarns may be braided into a sheath.
  • thermoplastic fibers can be mixed with the high-modulus fibers, wherein this mixture is heated in a later step so that the thermoplastic fibers melt and become the matrix in which the high-modulus fibers are embedded.
  • the high modulus fibers can be present as continuous fibers, for example as multifilament yarn, and the thermoplastic fibers are well mixed with the high modulus fibers, for example by means of known per se swirling by means of air.
  • finite fibers for example staple fibers or fibers which have been produced by stretch breaking, can also be used for the high-modulus fibers.
  • thermoplastic fibers which are also staple fibers or stretch-broken fibers.
  • the broken fibers have different lengths, and the average length and length distribution of the fibers can be influenced to some extent.
  • an average length of 70 to 170 mm preferably from 110 to 130 mm and in particular about 120 mm and a length distribution of 40 to 230 cm has been well proven.
  • Such fibers can then be mixed in a manner known per se and used without twisting or in the form of a yarn as a core around which the mutifilament yarn forming the sheath is wound.
  • the mixed, consisting of high-modulus fibers and thermoplastic fibers yarn can be heated either before the sheath with the multifilament yarn so that melt the thermoplastic fibers and embedding the Hochmodulmaschinen as a matrix.
  • thermoplastic fibers It is particularly favorable first to wrap the mixture of high-modulus fibers and thermoplastic fibers with at least one multifilament yarn.
  • an adhesion promoter preferably an RFL (resorcinol-formaldehyde-latex) adhesion promoter, which is crosslinked under the action of temperature, is usually applied to the cords before embedding in the elastomeric material
  • the temperature treatment required for crosslinking the adhesion promoter can also be used can be used to melt the thermoplastic fibers and convert them into matrix material.
  • the matrix of the core of the cord according to the invention is a thermoplastic which has a melting point or melting point range between 150 and 420 ° C., preferably between 180 and 260 ° C.
  • a melting point or melting range for the thermoplastic between 200 and 230 ° C has proven to be particularly useful here.
  • thermoplastic material for the matrix of the core virtually all materials which can be spinned into fibers by melt spinning are suitable, in particular thermoplastic polyurethanes (TPU), polyesters (PET), polyphenylene sulfides (PPS), polyethylenes (PE) or polyamides (PA).
  • TPU thermoplastic polyurethanes
  • PET polyesters
  • PPS polyphenylene sulfides
  • PE polyethylenes
  • PA polyamides
  • PA polyamides
  • the cord according to the invention is characterized in particular by the fact that the core contains 15 to 50% by volume, preferably 25 to 40% by volume, based on the core without sheath, of matrix. It has been found that it is not absolutely necessary on the one hand that the high modulus fibers are completely embedded in matrix material, but on the other hand it is advantageous if the core has as little excess matrix material as possible when embedding the cord in the elastomeric material Material applied heat would embed a considerable proportion of filaments of the sheath-forming multifilament yarn. In the same way, it has turned out to be an advantage if the matrix material is distributed as evenly as possible in the core.
  • the cord according to the invention is characterized in that the high modulus fibers in the core have a modulus of 200 to 550 GPa, preferably 200 to 350 GPa, more preferably 200 to 250 GPa. Carbon fibers are best suited for this purpose.
  • the multifilament yarn or the multifilament yarns have a lower modulus than the modulus of the high modulus fibers of the core.
  • multifilament yarns with a modulus of from 70 to 150 GPa, in particular from 70 to 120 GPA have proven to be very useful.
  • a multifilament yarn of aramid has proven itself.
  • the cord according to the invention is ideally suited for the production of fiber-reinforced elastomeric materials.
  • the subject of vorfiegenden invention is a V-belt as well as a toothed belt, which contains a cord according to the invention.
  • This core component was wound with 2 yarns 3 in opposite directions, each with 250 turns per meter (1 yarn with 250 turns per meter in the Z direction and a yarn with 250 turns per meter in the S direction), resulting in an untreated cord, which in the core component contained the filaments of yarns 1 and 2.
  • This cord was provided with an RFL dip in two stages in the following manner. In the first step, the cord surface (essentially the filaments of the yarn 3) was epoxidized in a surface treatment. In the second step, the cord was dipped in aqueous RFL and cured at 235 ° C with the filaments of yarn 2 melting and becoming the matrix for the filaments of yarn 1.
  • the obtained dipped cord was embedded in hydrogenated nitrile rubber. Furthermore, two commercially available cords Glass A and Glass B, which contained glass filaments in the core, were dipped in the same manner and embedded in hydrogenated nitrile rubber.
  • Cord A is made by NGF Europe Ltd. under the designation "Type EC9, 34, 3/11 80S, black dipped", while Cord B is sold and sold by Sovoutri as a reinforcing cord.
  • SPAF trap peel adhesion force
  • the cord according to the invention has significantly higher values with regard to the breaking strength and the force at the measured strains than conventional cords which have glass fibers in their core. Also, the cord according to the invention is characterized by lower elongation at break. With regard to the adhesion in rubber, the cord according to the invention has comparable properties to those of today's cords. In this respect, the cord according to the invention can be regarded as a significant improvement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Ropes Or Cables (AREA)
  • Materials For Medical Uses (AREA)
  • Reinforced Plastic Materials (AREA)

Claims (18)

  1. Corde constituée d'un noyau et d'une enveloppe, le noyau contenant des fibres à module élevé noyées dans une matrice et étant entouré au moins en grande partie par des fibres formant l'enveloppe, cette corde étant caractérisée en ce que la matrice du noyau est un thermoplastique.
  2. Corde selon la revendication 1, caractérisée en ce que les fibres formant l'enveloppe constituent au moins un fil à multifilaments, qui est enroulé autour du noyau.
  3. Corde selon la revendication 1 ou 2, caractérisée en ce que la matrice du noyau est un thermoplastique présentant un point ou une zone de fusion comprise entre 100 et 420° C, notamment entre 180 et 260° C.
  4. Corde selon la revendication 3, caractérisée en ce que la matrice du noyau est un thermoplastique présentant un point ou une zone de fusion comprise entre 200 et 230° C.
  5. Corde selon une ou plusieurs des revendications 1 à 4, caractérisée en ce que la matrice du noyau est un polyamide, notamment un PA 4, PA 4.6, PA 6, PA 6.6, PA 6.10, PA 10 ou PA 12.
  6. Corde selon une des revendications 1 à 5, caractérisée en ce que le noyau contient une matrice représentant 15 à 50 % en volume du noyau sans enveloppe.
  7. Corde selon une ou plusieurs des revendications 1 à 6, caractérisée en ce que dans le noyau, les fibres à module élevé présentent un module allant de 200 à 550 GPa.
  8. Corde selon la revendication 7, caractérisée en ce que dans le noyau, les fibres à module élevé présentent un module allant de 200 à 350 GPa, notamment de 200 à 250 GPa.
  9. Corde selon une ou plusieurs des revendications 1 à 8, caractérisée en ce que le fil à multifilaments de l'enveloppe présente un module allant de 70 à 150 GPa, de préférence 70 à 120 GPa.
  10. Corde selon une ou plusieurs des revendications 1 à 9, caractérisée en ce que dans le noyau, les fibres à module élevé sont des fibres de carbone.
  11. Corde selon une ou plusieurs des revendications 1 à 10, caractérisée en ce que les fibres à module élevé présentent dans le noyau la longueur finale.
  12. Corde selon la revendication 11, caractérisée en ce que dans le noyau, les fibres à module élevé sont des fibres qui ont été rompues par étirage.
  13. Corde selon la revendication 11 ou 12, caractérisée en ce que dans le noyau, les fibres à module élevé ont une longueur moyenne allant de 70 à 170 mm.
  14. Corde selon une des revendications 11 à 13, caractérisée en ce que dans le noyau, les fibres à module élevé ont des longueurs différentes allant de 40 à 230 mm.
  15. Corde selon une ou plusieurs des revendications 1 à 14, caractérisée en ce que le fil à multifilaments constituant l'enveloppe est un fil d'aramide.
  16. Utilisation d'une corde selon une ou plusieurs des revendications 1 à 15, pour la fabrication de matériaux élastomères renforcés par des fibres.
  17. Courroie trapézoïdale contenant au moins une corde selon une ou plusieurs des revendications 1 à 15.
  18. Courroie crantée contenant au moins une corde selon une ou plusieurs des revendications 1 à 15.
EP05015392A 2005-07-15 2005-07-15 Corde Expired - Lifetime EP1743964B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT05015392T ATE414807T1 (de) 2005-07-15 2005-07-15 Cord
EP05015392A EP1743964B1 (fr) 2005-07-15 2005-07-15 Corde
PL05015392T PL1743964T3 (pl) 2005-07-15 2005-07-15 Kord
DE502005006007T DE502005006007D1 (de) 2005-07-15 2005-07-15 Cord
JP2006192632A JP2007023473A (ja) 2005-07-15 2006-07-13 コード
KR1020060065859A KR20070009443A (ko) 2005-07-15 2006-07-13 코드
US11/487,426 US20070169458A1 (en) 2005-07-15 2006-07-17 Cord
CN2006101062693A CN1896352B (zh) 2005-07-15 2006-07-17 帘子线

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05015392A EP1743964B1 (fr) 2005-07-15 2005-07-15 Corde

Publications (2)

Publication Number Publication Date
EP1743964A1 EP1743964A1 (fr) 2007-01-17
EP1743964B1 true EP1743964B1 (fr) 2008-11-19

Family

ID=35285566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015392A Expired - Lifetime EP1743964B1 (fr) 2005-07-15 2005-07-15 Corde

Country Status (8)

Country Link
US (1) US20070169458A1 (fr)
EP (1) EP1743964B1 (fr)
JP (1) JP2007023473A (fr)
KR (1) KR20070009443A (fr)
CN (1) CN1896352B (fr)
AT (1) ATE414807T1 (fr)
DE (1) DE502005006007D1 (fr)
PL (1) PL1743964T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102472363A (zh) * 2009-07-02 2012-05-23 盖茨公司 改善的用于齿动力传动带的织物和带
KR101126910B1 (ko) * 2009-12-22 2012-03-21 한국타이어 주식회사 유리섬유 복합체를 포함하는 타이어 코드 및 이를 이용한 래디얼 타이어
GB2477531B (en) * 2010-02-05 2015-02-18 Univ Leeds Carbon fibre yarn and method for the production thereof
AU2011214121B2 (en) * 2010-02-09 2014-04-24 Bae Systems Plc Component including a rechargeable battery
KR101265561B1 (ko) * 2011-05-06 2013-05-20 변선 밴드 형태의 심재를 갖는 로프
FR2975407B1 (fr) * 2011-05-18 2014-11-28 Michelin Soc Tech Cordon composite pour bande de roulement de bandage pneumatique
JP2014173196A (ja) * 2013-03-06 2014-09-22 Gifu Univ 混繊糸、織物および編み物、複合材料、並びに、複合材料の製造方法
EP3006228B1 (fr) * 2014-10-07 2017-04-26 Continental Reifen Deutschland GmbH Corde hybride destinée à être utilisée en tant que support de fixation dans un composant d'un pneu de véhicule et pneus de véhicule
CN104790081B (zh) * 2015-04-14 2017-03-22 上海方纶新材料科技有限公司 一种用于轮胎的复合帘线
MX2018012218A (es) * 2016-04-08 2019-02-07 Gates Corp Cable hibrido para reforzar articulos polimericos y articulos reforzados.
CN112796016B (zh) * 2021-01-29 2025-06-13 龙岩高德新材料科技有限公司 一种弹性帘子布

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US20030211911A1 (en) * 2002-05-10 2003-11-13 Susan Welk Belt

Also Published As

Publication number Publication date
JP2007023473A (ja) 2007-02-01
DE502005006007D1 (de) 2009-01-02
EP1743964A1 (fr) 2007-01-17
CN1896352B (zh) 2010-09-29
US20070169458A1 (en) 2007-07-26
PL1743964T3 (pl) 2009-04-30
KR20070009443A (ko) 2007-01-18
ATE414807T1 (de) 2008-12-15
CN1896352A (zh) 2007-01-17

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