WO2002087840A1 - Procede et appareil de fabrication de composite flexible a haute resistance - Google Patents

Procede et appareil de fabrication de composite flexible a haute resistance Download PDF

Info

Publication number
WO2002087840A1
WO2002087840A1 PCT/GB2002/001950 GB0201950W WO02087840A1 WO 2002087840 A1 WO2002087840 A1 WO 2002087840A1 GB 0201950 W GB0201950 W GB 0201950W WO 02087840 A1 WO02087840 A1 WO 02087840A1
Authority
WO
WIPO (PCT)
Prior art keywords
tow
tank
impregnating material
flexible
composite
Prior art date
Application number
PCT/GB2002/001950
Other languages
English (en)
Inventor
Rajinder Singh
Stuart John Eaton
Jonathan Geoffrey Gore
George Jiri Tomka
Original Assignee
Infinity Squared Limited
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 Infinity Squared Limited filed Critical Infinity Squared Limited
Publication of WO2002087840A1 publication Critical patent/WO2002087840A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • B29B15/125—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex by dipping

Definitions

  • This invention concerns a method and an apparatus for manufacturing a flexible high strength composite which is suitable for use, for example, in structural applications, or as a line or tape such as for measuring, marking or surveying equipment.
  • a method of manufacturing a flexible high strength composite comprising at least one carbon fibre tow, comprising filaments of carbon fibre material, impregnated in a flexible polymeric matrix, the method comprising the steps of:
  • an apparatus for manufacturing a flexible high strength composite comprising at least one carbon fibre tow, comprising filaments of carbon fibre material, impregnated in a flexible polymeric matrix, the apparatus comprising:
  • a tank for impregnating material means for twisting the at least one tow as it passes through the tank;
  • curing means for curing the impregnating material applied to the at least one tow to form the flexible polymeric matrix.
  • the twisted tow may have up to about 150 or more twists per metre.
  • the at least one tow may be passed downwardly through the tank of impregnating material, the at least one tow exiting the tank through an aperture at a lower end of the tank.
  • Means may be provided to maintain the level of impregnating material in the tank substantially at a predetermined level .
  • the impregnating material may incorporate a diluent to reduce the viscosity thereof.
  • the impregnating material may comprise a prepolymeric material.
  • the prepolymeric material may be polymerisable with a UV initiator or with a thermal initiator.
  • the impregnated tow may be passed downwardly through a curing means.
  • Means may be provided downstream of the curing means for controlling the speed of the tow through the tank and through the curing means .
  • Means may be provided to accumulate the flexible composite.
  • the flexible composite may be used, for example, in structural applications or as a line or tape such as for measuring, marking or surveying equipment, or as a high strength flexible conductor.
  • Figure 1 is a perspective view of an embodiment of a flexible high strength composite made in accordance with the present invention.
  • Figure 2 is a schematic illustration of an apparatus according to the present invention for manufacturing a flexible high strength composite.
  • a flexible high strength composite 2 comprises at least one carbon fibre tow 4, comprising filaments of carbon fibre material, encapsulated in a flexible polymeric matrix 6.
  • a plurality of carbon fibre tows 4 are provided, which may be of straight (i.e. unidirectional) form, or of twisted form, and which may each be of circular or rectangular cross-section.
  • Each of the carbon fibre tows 4 comprises filaments of carbon fibre material which suitably comprises a turbostratic structure of carbon which may be formed from one or more precursors such as mesophase pitch or polyacrylonitrile polymer. As many as one thousand tows 4 may be provided in the composite 2.
  • One or more of the tows 4 may incorporate filaments of an alternative material to provide specific properties to the resulting composite. For example, optical fibres may be incorporated so that optical signals may be sent along the composite.
  • Each tow 4 suitably comprises from 50 to 12000 filaments of carbon fibre material, each having a diameter of between 0.05 and 20 microns and suitably of about 7 microns .
  • tows 4 are of twisted form, up to about 150 twists per metre may be provided. In a typical twisted form of construction, about 100 twists per metre are provided.
  • the tows are of braided form
  • such braided form may be arranged such that some of the tows 4 are interwoven in braided form around one or more central tows, that is, in the form of maypole braiding.
  • the tows 4 may be braided in situ.
  • the flexible polymeric matrix 6 comprises a material which preferably wets the carbon fibre filaments of the tows 4 and preferably encapsulates each individual filament of the tows 4.
  • the flexible polymeric matrix 6 is arranged to adhere to the carbon fibre filaments of the tows 4. Such adhesion may be by means of an adhesive material, but is suitably by means of chemical bonding between material of the flexible polymeric matrix 6 and the carbon fibre filaments of the tows 4. A substantially uniform distribution of the carbon fibre filaments of the tows 4 is preferably provided within the flexible polymeric matrix 6.
  • the flexible polymeric matrix ⁇ suitably comprises an elastomer, or a thermoplastic plastics material, or a thermosetting plastics material.
  • a suitable elastomer comprises polyurethane or silicone rubber.
  • thermoplastic plastics material comprises methacrylate, or tri ethylolpropane triacrylate, or ethoxyethoxyethyl acrylate, or polyvinylchloride. Flexibilised derivatives of thermoplastic plastics materials may also be used.
  • thermosetting plastics comprises vinyl ester, a flexible derivative of a polyester resin, or flexibilised epoxy material.
  • the flexible polymeric matrix 6 may be applied as a prepolymeric resin material which impregnates the tow 4 and is subsequently polymerised, such as by heating or by means of applied radiation, such as ultra-violet radiation.
  • the resulting flexible composite 2 exhibits high tensile strength and high axial stiffness. It is also light in weight and exhibits high flexibility, having a low bend radius: that is, the flexible composite can be distorted repeatedly without failure of the composite. It also exhibits low thermal expansion.
  • a composite 2 is in the form of a line incorporating tows 4 with six thousand filaments and with a loading of carbon fibre to polymeric matrix ⁇ of about 80 percent. Such composite has an overall cross sectional area of about 2.9 x 10 "7 square metres, a tensile strength of about 3 to 4 GPa and an axial stiffness of about 300 GPa.
  • the composite has a bend diameter of about 10mm where there is one twist in the tow every 30mm.
  • the flexible composite 2 may be used in structural applications, but finds particular application as a line or tape for measuring, marking or surveying equipment.
  • One or more layers 8 of a flexible covering material, such as a polymer material may be provided on the composite 2. Such one or more layers 8 may provide protection for the composite 2 or may incorporate markings or measurement data for use when the composite 2 is applied as a line or tape for measuring, marking or surveying equipment.
  • the resulting composite will have a generally rectangular cross-section, that is it will be in the form of a tape or a sheet.
  • the flexible composite 2 is manufactured with the aid of an apparatus as shown in Figure 2 using a continuous pultrusion process.
  • a carbon fibre tow 4 is unwound as required from a reel 12, the reel being mounted on a base 14 which is rotatable about an upright axis to enable a twist to be imparted to the tow 4 as it is unwound.
  • the tow 4 may be in the form of a high modulus 6K unidirectional tow.
  • the twisted tow 4 is aligned by way of an aperture in a supporting framework for the apparatus and passes downwardly through a resin tank 16 in which the tow continues to twist and which is provided with an aperture in the form of a coating die 18 at the lower end thereof.
  • the coating die has a diameter of about 0.75 mm.
  • the resin tank 16 is initially filled with UV curable prepolymeric material to a predetermined level and the predetermined level is maintained by supplying further prepolymeric material from a storage tank 20 by means of a metering pump 22.
  • the tow, impregnated with the prepolymeric material then passes downwardly into a curing means in the form of a UV curing oven 24 where the prepolymeric material is cured to form the desired flexible composite 2.
  • the speed at which the tow is drawn through the resin tank 16, coating die 18 and curing oven 24 is determined by speed control means in the form of a speed-controlled hauler 26 through which the composite 2 passes.
  • the speed of the hauler 26 can be controlled to ensure the tow 4 is fully coated and impregnated with the prepolymeric material and to ensure the curing time in the oven 24 is sufficient, but not excessive .
  • the flexible composite is wound (accumulated) on a reel 28 by means of a suitable drive 30.
  • a suitable drive 30 we have found the use of a separate drive 30 to be significant in enabling constant speed of the tow through the resin tank 16, coating die 18 and curing oven 24 to be maintained.
  • a prepolymeric material for example of a type used in the manufacture of optical fibres, was found to be preferable to thermoplastic or thermosetting plastics materials.
  • Suitable prepolymeric materials include multifunctional urethane/acrylic resin materials which may contain trimethylolpropane triacrylate and ethoxyethoxyethyl acrylate.
  • prepolymeric materials can be polymerised using thermal or UV initiators, UV initiators were considered to be preferable due to a wider processing window and more rapid curing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

L'invention concerne un composite flexible à haute résistance comprenant au moins un câble de fibres de carbone (4) constitué de filaments de fibres de carbone imprégnés dans une matrice polymère flexible (6). On obtient ce composite en faisant passer ledit câble par un réservoir (16) de produit d'imprégnation. Un dispositif d'enroulement (12, 14) permet d'enrouler au moins un câble (4) lorsque celui-ci passe par le produit d'imprégnation contenu dans le réservoir (16). Le câble ainsi imprégné est ensuite cuit dans un dispositif de cuisson (24) pour cuire le produit d'imprégnation appliqué sur le câble (4) et former ainsi la matrice polymère flexible (6).
PCT/GB2002/001950 2001-04-27 2002-04-29 Procede et appareil de fabrication de composite flexible a haute resistance WO2002087840A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0110351.4 2001-04-27
GBGB0110351.4A GB0110351D0 (en) 2001-04-27 2001-04-27 Flexible high strength composite

Publications (1)

Publication Number Publication Date
WO2002087840A1 true WO2002087840A1 (fr) 2002-11-07

Family

ID=9913578

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/001950 WO2002087840A1 (fr) 2001-04-27 2002-04-29 Procede et appareil de fabrication de composite flexible a haute resistance

Country Status (2)

Country Link
GB (1) GB0110351D0 (fr)
WO (1) WO2002087840A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004103664A1 (fr) * 2003-05-23 2004-12-02 Sia Abrasive Industries Ag Procede de fabrication de faisceaux de fibres comprimes, revetus de plastique
WO2023156728A1 (fr) * 2022-02-18 2023-08-24 Safran Procede de fabrication d'un toron instrumente
FR3139492A1 (fr) * 2022-09-12 2024-03-15 Safran Procédé de fabrication d’un toron instrumenté

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4853021A (en) * 1986-12-04 1989-08-01 Vetrotex Saint-Gobain Process and apparatus for producing coated single twist glass yarns
WO1993015893A1 (fr) * 1992-02-06 1993-08-19 Vetrotex France S.A. Procede de fabrication d'un fil composite et produits composites obtenus a partir dudit fil
US5639307A (en) * 1995-01-17 1997-06-17 Electrostatic Technology, Inc. Fiber bundle coating apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4853021A (en) * 1986-12-04 1989-08-01 Vetrotex Saint-Gobain Process and apparatus for producing coated single twist glass yarns
WO1993015893A1 (fr) * 1992-02-06 1993-08-19 Vetrotex France S.A. Procede de fabrication d'un fil composite et produits composites obtenus a partir dudit fil
US5639307A (en) * 1995-01-17 1997-06-17 Electrostatic Technology, Inc. Fiber bundle coating apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004103664A1 (fr) * 2003-05-23 2004-12-02 Sia Abrasive Industries Ag Procede de fabrication de faisceaux de fibres comprimes, revetus de plastique
WO2023156728A1 (fr) * 2022-02-18 2023-08-24 Safran Procede de fabrication d'un toron instrumente
FR3139492A1 (fr) * 2022-09-12 2024-03-15 Safran Procédé de fabrication d’un toron instrumenté

Also Published As

Publication number Publication date
GB0110351D0 (en) 2001-06-20

Similar Documents

Publication Publication Date Title
CA1302674C (fr) Methode et appareil de fabrication de corps composite en plastique pour troncon de cable
AU2003221761B2 (en) Aluminum conductor composite core reinforced cable and method of manufacture
US5084221A (en) Process for manufacturing a twisted frp structure
US3116760A (en) Composite tubing
EP2123701B1 (fr) Procédé de production d'un fil plastique rond renforcé par des fibres
EP0018401B1 (fr) Elements de renforcement pour cables a fibre optique
JPS61194276A (ja) 複合補強部材並びにその製造方法及び製造装置
CN101932430A (zh) 由复丝制造的柔性连续带及其制造方法
WO2022007705A1 (fr) Matériau de fil composite renforcé par des fibres liées à un élastomère et son procédé de préparation
JP3058897B2 (ja) 繊維強化硬化性樹脂製細線条物の製造方法
WO2002087840A1 (fr) Procede et appareil de fabrication de composite flexible a haute resistance
JP2000254978A (ja) Ｆｒｐ細線条体の製造方法
JP2984021B2 (ja) 繊維強化熱硬化性樹脂製撚構造体及びその製造方法
JP2869116B2 (ja) 繊維強化熱硬化性樹脂製撚構造体及びその製造方法
JP3770936B2 (ja) コンクリート製構造物補強材およびそれを用いたコンクリート製構造物補強方法
CA3147411A1 (fr) Revetement composite de protection de fibre optique
JP3327984B2 (ja) 繊維強化樹脂製異形棒状物の製造方法
JP2020144201A (ja) 成形体
JP2585165B2 (ja) 可撓性のある複合撚合型抗張力条体の製造方法
KR20010028610A (ko) 하이브리드 바와 그 제조방법 및 하이브리드 바를 이용한 구조물
JP2516714B2 (ja) 複合撚合型抗張力体の製造方法
JPH0428082Y2 (fr)
JP2008307720A (ja) 繊維強化複合材料方法及び繊維強化複合材料
WO2022013750A1 (fr) Élément structural renforcé ou tige de liaison souple
JP3421956B2 (ja) 可撓性構造用材料の製造方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 69(1) EPC

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP