US20060275605A1 - Handling cable for power supply and/or signal transmission - Google Patents

Handling cable for power supply and/or signal transmission Download PDF

Info

Publication number
US20060275605A1
US20060275605A1 US11/432,676 US43267606A US2006275605A1 US 20060275605 A1 US20060275605 A1 US 20060275605A1 US 43267606 A US43267606 A US 43267606A US 2006275605 A1 US2006275605 A1 US 2006275605A1
Authority
US
United States
Prior art keywords
reticulation
handling cable
thermoplastic polyurethane
weight
parts
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.)
Abandoned
Application number
US11/432,676
Other languages
English (en)
Inventor
Chantal Barioz
Olivier Pinto
Jean-Michel Marty
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.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Assigned to NEXANS reassignment NEXANS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BARIOZ, CHANTAL, MARTY, JEAN-MICHEL, PINTO, OLIVIER
Publication of US20060275605A1 publication Critical patent/US20060275605A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]

Definitions

  • the present invention relates to a handling cable, that is, an electric power and/or signal transmission cable, which is especially intended to be coupled to a travelling machine.
  • the invention can be applied advantageously in the field of cables for coilers, which, as their name indicates, are dedicated to being wound up and unwound during shifting of the machines to which they are respectively connected.
  • a handling cable is classically constituted by several insulated conductors, which are combined within the same protective sheath.
  • the material comprising the sheath in question must exhibit thermomechanical properties compatible with the final conditions of use of the cable.
  • the sheath material should be sufficiently flexible to conserve the flexibility of the cable indispensable for being able to efficiently accompany any shift by the mobile machine to which it is attached. It is especially important to ensure that the handling cable rolls up and unrolls, when it is more specifically used in combination with one or more coilers.
  • Ii is likewise essential that the sheath material offers excellent resistance to abrasion and tearing, given that the handling cable is going to have to tolerate incessant shifting throughout usage of the attached mobile machine, with all the implied constraints of friction. This will be precisely the case from the moment when the cable is going to be constantly rolled up and unrolled around guide wheels and other return pulleys.
  • the sheath material should finally have very good mechanical properties, so as to be able to resist strong traction forces, which the handling cable is inevitably going to have to be subjected to during shifting of the mobile machine to which it is connected. It should be noted that this characteristic proves to be more particularly pertinent in the case of cables for coilers. Be that as it may, the sheaths of handling cables are today essentially made of reticulated synthetic rubber. This heatsetting material in fact offers excellent properties heat deformation in normal conditions of use, as well as very good flexibility.
  • thermoplastic is effectively known for being exceptionally resistant to abrasion, and it also offers excellent mechanical properties, from the point of view of both resistance to traction and flexibility.
  • the technical problem to be resolved by the object of the present invention is to propose a handling cable especially for electric power and/or signal transmission with a travelling mobile machine, handling cable which would allow the problems of the prior art to be prevented, by offering substantially improved resistance to temperature under mechanical constraints, at the same time being less cumbersome to manufacture.
  • the solution to the technical problem in question consists, according to the present invention, of the handling cable comprising at least one sheath made by autoreticulation of a composition comprising thermoplastic polyurethane and a reticulation agent provided with at least two isocyanate functions.
  • sheath extends here in the widest sense of the term, that is, that is can variously designate a first coating of a conductor element, an upper layer of an insulated cable, or an envelope combining several insulated cables.
  • autoreticulation conventionally signifies that reticulation of the sheath material is carried out at ambient temperature and optionally by air humidity, without subsequent processing.
  • the invention such as defined has the advantage of being able to have a sheath material combining the excellent properties of resistance to abrasion, flexibility and mechanical resistance to traction of thermoplastics, with the exceptional dimensional stability when hot and under mechanical constraints of the reticulated materials.
  • the reticulation agent is selected from the group of methane diphenyl diisocyanate (MDI) and its derivatives, isophorone diisocyanate (IPDI) and its derivatives, toluene diisocyanate (TDI) and its derivatives, hexamethylene diisocyanate (HDI) and its derivatives, or any mixture of these compounds.
  • MDI methane diphenyl diisocyanate
  • IPDI isophorone diisocyanate
  • TDI toluene diisocyanate
  • HDI hexamethylene diisocyanate
  • the composition of the sheath material comprises between 2 and 20 parts by weight of reticulation agent per 100 parts by weight of thermoplastic polyurethane, and preferably between 4 and 10 parts by weight of reticulation agent.
  • FIG. 1 illustrates the evolution of the rates of insolubles during reticulation of the thermoplastic polyurethanes, in accordance with one embodiment of the present invention
  • FIG. 2 illustrates the impact of concentration of a reticulating agent on the dimensional stability of the reticulated thermoplastic polyurethane in a situation of elongation under constraint
  • FIG. 3 illustrates the impact of concentration of a reticulating agent on the dimensional stability of the reticulated thermoplastic polyurethane in a situation of permanent elongation.
  • thermoplastic polyurethane It relates to six materials based on thermoplastic polyurethane, which are perfectly well suited to the manufacture of sheaths of handling cables. Samples are thus prepared from six different compositions, in view of comparing their respective performances.
  • thermoplastic polyurethane is common to the six samples.
  • it is a polymer distributed under the trade mark Estane 58888Nat021 by the company Noveon.
  • sample 1 constitutes an extreme case, since it is constituted solely by thermoplastic polyurethane. In other terms, its resistance in reticulation agent is zero.
  • samples 2 to 4 differ from their counterparts by the fact that the reticulation agent with which they are provided is methane diphenyl diisocyanate, more currently designated by the abbreviation MDI.
  • Samples 5 and 6 are remarkable in that the reticulating agent, which enters their compositions, is the trimer of isophorone diisocyanate, commonly identified by the abbreviation t-IPDI.
  • sample 1 exclusively comprises thermoplastic polyurethane, which is not reticulated, the material is simply extruded and made into the desired shape.
  • samples 2 to 6 correspond to reticulated materials, they are all prepared by following the same operating method, which consists schematically of grafting, then extrusion.
  • the process therefore commences with a first grafting stage.
  • Standard thermoplastic polyurethane and the reticulation agent of isocyanate type are first introduced to a dual-screw extruder by means of a feed hopper.
  • the whole is then mixed at a temperature close to 200° C.
  • the resulting granules of grafted thermoplastic polyurethane are dried and then stored for more than 6 months in airtight containers.
  • thermoplastic polyurethane is processed in a conventional single-screw extruder, similarly to standard thermoplastic polyurethane.
  • Autoreticulation takes place classically over a period of 4 to 7 days at ambient temperature and humidity.
  • thermoplastic polyurethanes in this instance those of samples 2, 4 and 5.
  • a series of measurements is made aimed at determining, at regular intervals, the rate of insolubles of the material throughout reticulation.
  • the operating method is identical for each measurement. Concretely, 1 g of the material studied (M1) is placed in an Erlenmeyer flask containing 100 g tetrahydrofurane (THF), and the whole is brought to reflux (67° C.) with magnetic agitation over 24 h. The contents of the Erlenmeyer flask is then filtered hot on a metallic grille whereof the mesh size is 120 ⁇ m ⁇ 120 ⁇ m. The solid residue obtained is then dried in a kiln at 80° C. for 24 h, then weighed (M2). The rate of insolubles expressed in % is then calculated by making the ratio of masses M2 ⁇ 100/M1.
  • sample 1 gives a rate of insolubles of 0%, which proves to be quite logical, given that this reference sample corresponds to the non-grafted polymer composition, and thus to a non-reticulated material.
  • FIG. 1 illustrates the evolution of the rates of insolubles during reticulation of the thermoplastic polyurethanes of samples 2, 4 and 5. It especially reveals the influence of the nature and concentration of the reticulation agent within the compositions of the materials tested.
  • Assays are conducted at ambient temperature, with the aim of determining the principal mechanical properties of samples 1, 3 and 4, namely the breaking stress and breaking elongation.
  • the Shore A hardness as well as the friction coefficients of each material on itself are likewise measures, pursuant to the ISO 8295 protocol with respect more particularly to said friction coefficients.
  • the objective is to compare the properties of two reticulated thermoplastic polyurethanes (samples 3 and 4) to those of a simple, non-reticulated thermoplastic polyurethane (sample 1), but also to evaluate the impact of concentration in the reticulation agent on said properties.
  • the NF EN 60811-2-1 standard relates to the measuring of hot creep of a material under mechanical constraint.
  • the corresponding test is commonly designated by English expression Hot Set Test.
  • test result would logically be considered as a failure.
  • Table 3 lists the results of the tests conducted on samples 1, 3 and 4, by taking into consideration permanent elongation only. TABLE 3 Sample Maximum Hot Set Test temperature (° C.) 1 160 3 175 4 180
  • sample 1 which corresponds to non-reticulated thermoplastic polyurethane, can only resist a maximum Hot Set Test temperature of 160° C.
  • thermomechanical properties A significant increase in thermomechanical properties is noted when the material is reticulated (samples 3 and 4).
  • the maximum Hot Set Test temperature actually moves up to 175, and even to 180° C., from the moment when the composition of the base material comprises respectively 6 pcr (sample 3) and 8 pcr (sample 4) of reticulation agent of type MDI.
  • This hot creep test takes up the principle of the Hot Set Test, but the samples are earlier subjected to accelerated ageing of 15 h at a temperature of 120° C.
  • thermomechanical properties of samples 4 and 6 that is, of thermoplastic polyurethanes reticulated due to the presence of two different reticulation agents, namely respectively MDI and t-IPDI.
  • Table 4 lists the different results of the accelerated ageing test. TABLE 4 Sample 4 6 Hot set test 175° C. Elongation under 20 10 constraint (%) Permanent elongation (%) 20 0 Hot set test 200° C. Elongation under Failure 400 constraint (%) Permanent elongation (%) Failure 115
  • thermoplastic polyurethane modified with 6 pcr or plus of t-IPDI reticulant requires more than 3 weeks at ambient temperature and humidity to carry into effect the Hot Set Test at 175° C. This is very much in keeping with the evolution of the rate of insolubles discussed earlier.
  • the temperature is thus fixed at 80° C.
  • the application time considered is 24 h
  • the intensity of the mechanical constraint can be 2, 3 or 4 MPa.
  • the creeping test is conducted on samples 1 to 4 to determine the impact of the concentration of reticulating agent on the dimensional stability of the reticulated thermoplastic polyurethane.
  • FIGS. 2 and 3 show how growth of this concentration improves the dimensional stability of the reticulated thermoplastic polyurethane. It should be noted that this characteristic is valid just as much for the elongation under constraint shown in FIG. 2 , as for the permanent elongation, the object of FIG. 3 .

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Insulated Conductors (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
US11/432,676 2005-05-12 2006-05-11 Handling cable for power supply and/or signal transmission Abandoned US20060275605A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0551243 2005-05-12
FR0551243A FR2885729B1 (fr) 2005-05-12 2005-05-12 Cable de manutention pour l'alimentation electrique et/ou la transmission de signal

Publications (1)

Publication Number Publication Date
US20060275605A1 true US20060275605A1 (en) 2006-12-07

Family

ID=35462647

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/432,676 Abandoned US20060275605A1 (en) 2005-05-12 2006-05-11 Handling cable for power supply and/or signal transmission

Country Status (6)

Country Link
US (1) US20060275605A1 (fr)
EP (1) EP1722378A2 (fr)
JP (1) JP2006324243A (fr)
KR (1) KR20060117266A (fr)
CN (1) CN1901100A (fr)
FR (1) FR2885729B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2919873B1 (fr) * 2007-08-07 2009-11-20 Setup Performance Matiere thermoplastique postreticulable apres transformation et articles moules stables a tres haute temperature obtenus apres transformation
CN104155696B (zh) * 2014-08-15 2016-10-05 中国地质大学（北京） 一种分布式时间域激电接收装置及实现方法
CN105038195A (zh) * 2015-07-23 2015-11-11 安徽瑞侃电缆科技有限公司 一种耐低温耐磨抗裂电缆

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023126A (en) * 1959-01-12 1962-02-27 Union Carbide Corp Method of bonding a synthetic resin coating to a polyolefin surface and article produced thereby
US3098229A (en) * 1959-06-17 1963-07-16 Gen Mills Inc Transmission line erected by pressurized plastic
US6139496A (en) * 1999-04-30 2000-10-31 Agilent Technologies, Inc. Ultrasonic imaging system having isonification and display functions integrated in an easy-to-manipulate probe assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE613493A (fr) * 1961-02-06 1900-01-01
BE615937A (fr) * 1961-04-03 1900-01-01

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023126A (en) * 1959-01-12 1962-02-27 Union Carbide Corp Method of bonding a synthetic resin coating to a polyolefin surface and article produced thereby
US3098229A (en) * 1959-06-17 1963-07-16 Gen Mills Inc Transmission line erected by pressurized plastic
US6139496A (en) * 1999-04-30 2000-10-31 Agilent Technologies, Inc. Ultrasonic imaging system having isonification and display functions integrated in an easy-to-manipulate probe assembly

Also Published As

Publication number Publication date
EP1722378A2 (fr) 2006-11-15
CN1901100A (zh) 2007-01-24
FR2885729B1 (fr) 2007-06-22
FR2885729A1 (fr) 2006-11-17
JP2006324243A (ja) 2006-11-30
KR20060117266A (ko) 2006-11-16

Similar Documents

Publication Publication Date Title
DE112009002722B4 (de) Tragseil für einen Aufzug
DE69431195T2 (de) Beschichtungssystem zur Beibehaltung der Glasadhäsion
MX2012014832A (es) Mezclas de poliuretano/poliolefina con desempeño de blanqueo de rasguño y tension mejorado.
US4284750A (en) Polyurethane resins
US20060275605A1 (en) Handling cable for power supply and/or signal transmission
US9136041B2 (en) Flame retardant composition for thermoplastic polyurethane polymers
WO2018108950A1 (fr) Mélange polymère auto-cicatrisant contenant du bisulfure
MX2011009793A (es) Composicion de resina curable por radiacion para recubrimiento de cables.
KR101554261B1 (ko) 저 융점 폴리우레탄 엘라스토머
KR20050021465A (ko) 열가소성 폴리우레탄 및 그 사용
JP5282214B1 (ja) 難燃性樹脂組成物
KR101425297B1 (ko) 엘리베이터용 로프
EP3957668A1 (fr) Composition de polyuréthane thermoplastique pour matériau de surface intérieure de voiture, et son procédé de préparation
BR112015030611B1 (pt) método para formar um revestimento de poliuretano em um rolo industrial, revestimento de poliuretano em um rolo industrial e revestimento de poliuretano em um rolo de prensa de sucção
EP2615054B1 (fr) Câble pour ascenseur
JP5832727B2 (ja) エレベータ用ロープの製造方法
JPH0741626A (ja) ポリ塩化ビニル系樹脂組成物及びパッキン材料
CN103975036A (zh) 防振材料及其制法
WO2015064140A1 (fr) Composition de résine résistante au chlore, article moulé en un thermoplastique résistant au chlore, et courroie
US20070093631A1 (en) Thermoplastic polyurethane molding and manufacturing method thereof
JP4017232B2 (ja) 押出成形用ポリウレタン樹脂組成物
CN114686155A (zh) 一种抗静电型tpu热熔胶膜及其制备方法
RU2159256C2 (ru) Полиуретановая композиция для получения низкомодульных эластомеров
JP5436190B2 (ja) エレベータ用ロープ

Legal Events

Date Code Title Description
AS Assignment

Owner name: NEXANS, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BARIOZ, CHANTAL;PINTO, OLIVIER;MARTY, JEAN-MICHEL;REEL/FRAME:018283/0867;SIGNING DATES FROM 20060607 TO 20060608

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION