EP1939895B1 - Zusammensetzung für Energie- und/oder Telekommunikationskabel auf Biopolymerbasis - Google Patents

Zusammensetzung für Energie- und/oder Telekommunikationskabel auf Biopolymerbasis Download PDF

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Publication number
EP1939895B1
EP1939895B1 EP07150419A EP07150419A EP1939895B1 EP 1939895 B1 EP1939895 B1 EP 1939895B1 EP 07150419 A EP07150419 A EP 07150419A EP 07150419 A EP07150419 A EP 07150419A EP 1939895 B1 EP1939895 B1 EP 1939895B1
Authority
EP
European Patent Office
Prior art keywords
power
polyester
telecommunications cable
cable according
polymers
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.)
Not-in-force
Application number
EP07150419A
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English (en)
French (fr)
Other versions
EP1939895A2 (de
EP1939895A3 (de
Inventor
Jerôme Fournier
Sophie Barbeau
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
Priority to EP10167309A priority Critical patent/EP2244267A1/de
Publication of EP1939895A2 publication Critical patent/EP1939895A2/de
Publication of EP1939895A3 publication Critical patent/EP1939895A3/de
Application granted granted Critical
Publication of EP1939895B1 publication Critical patent/EP1939895B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01B3/185—Substances or derivates of cellulose
    • 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
    • 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
    • H01B3/42—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 polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters
    • H01B3/422—Linear saturated polyesters derived from dicarboxylic acids and dihydroxy compounds

Definitions

  • the present invention relates to energy and / or telecommunication cables comprising at least one constituent element made of an extruded material derived from an extrudable composition.
  • Energy and / or telecommunication cables generally comprise coatings or insulating sheaths of synthetic polymers such as polyethylene, polyethylene vinyl acetate or polyvinyl chloride.
  • the document JP2004-311063 presents an energy cable comprising an extruded layer of a biodegradable polymer, in particular a polylactic resin.
  • EP-A-0 714 914 discloses a biodegradable insulating coating of water-swellable starch ester for an electric cable.
  • the technical problem to be solved, by the object of the present invention is to propose an energy and / or telecommunication cable comprising at least one constituent element made of an extruded material resulting from an extrudable composition making it possible to avoid the problems of the state of the art by offering in particular alternative compositions to those of the prior art.
  • the Applicant has carried out intensive tests to find compositions making it possible to limit the significant use of polymers. synthetic while maintaining mechanical properties, insulation and fire resistance identical to or even superior to the properties of the cable sheaths of the prior art.
  • extrudable composition comprises a biopolymer of the starch polymer type complexed with a biodegradable polyester.
  • the extrudable composition may further comprise other biopolymers selected from cellulose ester polymers, polyhydroxyalkanoate polymers and / or polylactic acid polymers comprising an acid mixture.
  • biopolymers selected from cellulose ester polymers, polyhydroxyalkanoate polymers and / or polylactic acid polymers comprising an acid mixture.
  • polylactic and polyester may further comprise other biopolymers selected from cellulose ester polymers, polyhydroxyalkanoate polymers and / or polylactic acid polymers comprising an acid mixture.
  • polylactic and polyester may benzophenylene glycol glycol glycol glycol, poly(2-aminoxyl)
  • other biopolymers selected from cellulose ester polymers, polyhydroxyalkanoate polymers and / or polylactic acid polymers comprising an acid mixture.
  • polylactic and polyester may further comprise other biopolymers selected from cellulose ester polymers, polyhydroxyalkanoate polymers and / or polylactic acid polymers comprising an acid mixture.
  • biopolymer means that the carbons of said polymer come from renewable biological sources.
  • the biopolymer can come from a direct extraction from biomass, a regeneration of the biomass by fermentation or hydrolysis, or by microbial transformation of biomonomers.
  • biopolymers are biodegradable, that is, they break down by the enzymatic action of microorganisms into carbon dioxide, methane, water and inorganic compounds.
  • Starch polymers are thermoplastic polymers derived from the chemical, thermal and / or mechanical treatment of starch.
  • Starch is found in many plants such as maize, wheat, legumes, roots, tubers and rhizomes such as potatoes or cassava.
  • Cellulose or cellulose-based polymers are generally produced by the chemical modification of natural cellulose.
  • Cotton and wood are the materials behind the industrial production of cellulose.
  • Polyhydroxyalkanoate or polyhydroxyalkanoate polymers are naturally produced by bacterial fermentation of sugars or lipids and may have thermoplastic or elastomeric properties.
  • the polylactic acid or polylactic acid polymers are aliphatic polyesters produced from corn starch.
  • said extrudable composition further comprises a synthetic polymer, preferably selected from polyethylene, polypropylene, ethyl vinyl acetate copolymer, polyvinyl chloride and polyester, or their mixture.
  • a synthetic polymer preferably selected from polyethylene, polypropylene, ethyl vinyl acetate copolymer, polyvinyl chloride and polyester, or their mixture.
  • each constituent element of said cable is selected from an insulating coating, a protective sheath and a filler.
  • a cable is schematically constituted by at least one electrical or optical conducting element extending inside at least one insulating element. .
  • At least one of the insulating elements may also act as protection means and / or that the cable may also have at least one specific protective element forming a sheath, in particular for electrical cables.
  • the cable may comprise a filling material which is essentially intended to maintain said insulated conductors and which is commonly called stuffing.
  • the cellulose ester polymers are chosen from cellulose butyrate polymer, cellulose acetate polymer and cellulose propionate polymer.
  • the polyhydroxyalkanoate polymer is a homopolymer or a copolymer of poly (3-hydroxybutyrate).
  • the polylactic acid polymers comprise at least about 10% by weight of polylactic acid, preferably at least about 40% by weight of polylactic acid, and more preferably at most about 90% by weight of polylactic acid. polylactic acid.
  • the polylactic acid polymers may comprise at least 40% by weight of polyester.
  • polylactic acid polymers comprising about 40% by weight of polylactic acid and about 60% by weight of polyester, or comprising about 10% by weight of polylactic acid and about 90% by weight of polylactic acid. polyester weight.
  • the extrudable composition further comprises a flame retardant filler.
  • the flame-retardant filler is chosen from aluminum trihydroxide Al (OH) 3 , magnesium dihydroxide Mg (OH) 2 , a mixture of hydrated magnesium carbonate and calcium and magnesium carbonate, zinc borate, and / or cork powder.
  • Table 1 details various samples according to the invention and according to the prior art, whose mechanical properties and fire resistance are studied.
  • compositions referenced 2, 2bis and 3 correspond to a composition according to the present invention comprising a biopolymer combined or not with a synthetic polymer.
  • compositions referenced 6 and 7 are those relating to the prior art.
  • Table 1 the amounts mentioned in Table 1 are expressed in parts by weight (phr) per 100 parts of polymer.
  • Table 1 ⁇ / u> Composition constituents 1 (not according to the invention) 100 pcr Cellulose 2 (according to the invention) 100 pcr Starch N F03A 2 bis (according to the invention) 100 pcr Starch NF08 3 (according to the invention) 25 pcr Starch NF03A, and 75 pb PE 4 (not according to the invention) 100 pb PHB 5 (not according to the invention) 100 pcr PLA-polyester 467F 5 bis (not according to the invention) 100 pcr PLA-polyester 219F 6 (according to the prior art) 100 pcr EVA 7 (according to the prior art) 100 pb PE
  • the plates After cooling and demolding, the plates are cut to make the samples on which mechanical tests are performed.
  • Table 2 summarizes the results of a number of measurements from samples 1 to 7 to evaluate their tensile strength and elongation at break. ⁇ u> Table 2 ⁇ / u> Sample Tensile strength (MPa) Elongation at break (%) 1 33 26 2 11 500 2 bis 15 240 3 14 640 4 17 9 5 26 410 5 bis 13 430 6 29 767 7 16 630
  • Cone-calorimeter analyzes are also performed to evaluate and compare the fire behavior of the different samples.
  • This type of analysis consisting of burning samples in the ambient air while subjecting them to an external energy radiation of less than 100 kW / m 2 power and imposed by a radiant heating controlled in temperature, makes it possible to obtain the released heat expressed in MJ / m 2 and the peak of heat output expressed in kW / m 2 .
  • each sample is shaped into square plates 10 cm square and 3 mm thick.
  • Table 3 collects the data collected by the cone-calorimeter analyzes with the samples from Table 2. ⁇ u> Table 3 ⁇ / u> Sample Heat release rate (MJ / kg) Peak of heat released (kW / m 2 ) 1 23 910 2 21 1030 2 bis 19 756 4 23 755 5 22 860 5 bis 23 228 6 37 1360 7 43 1310
  • Sample 8 is a composition comprising a biopolymer (Cellulose), a synthetic polymer (EVA) and magnesium hydroxide.
  • Samples 9 to 11 respectively correspond to samples 2, 6 and 7 added with a flame retardant filler.
  • Samples 12 to 14 correspond to sample 2, supplemented with a flame retardant filler.
  • Samples 15 to 17 correspond to the sample 5 bis supplemented with a flame retardant filler.
  • Sample 18 corresponds to sample 2 bis added with a flame retardant filler.
  • the samples in accordance with the invention have better flame-retarding properties since the heat content released from samples 9, 12-14 and 18 according to the invention are much lower than those of samples 10 and 11. for lower or equivalent peak heat values.
  • the sample 12 thus obtained makes it possible to obtain a tensile strength of 19 MPa and an elongation at break of 70%.
  • the mixture of these two biopolymers advantageously has well-balanced mechanical properties, whose tensile strength is greater than that of the sample 2 and the elongation at break is greater than that of the sample 1.
  • compositions according to the present invention for a cable application, the inventive composition 2 as well as the compositions 1, 5 and 5 bis of Table 1 are extruded on a metal conductor of 1.03 mm diameter in one layer of about 0.50 mm, to obtain the respective electrical son 1, 2, 5 and 5 bis.
  • the extrusion profile for the composition 1 extends from 145 ° C. to 200 ° C. under a pressure of 15 MPa (150 Bar), that of the composition 2 extends from 100 ° C to 135 ° C under a pressure of 13.5 MPa (135 Bar), and that of the compositions 5 and 5 bis extends from 120 to 150 ° C under a pressure of 19 MPa (190 bar), these profiles extrusion being well known to those skilled in the art.
  • the insulation test according to IEC 60502-1 consists in immersing the electric wires in water for at least one hour before said test.
  • a DC voltage between 80V and 500V is then applied for a sufficient time (between 1 and 5 min) then the resistance of the ring is measured. This is used to determine the insulation constant.
  • Ki values are advantageously greater than those recommended for certain materials, especially for polyvinyl chloride.
  • the extrusion of said composition makes it possible to achieve significant layer thicknesses of the order of at least 0.3-0.5 mm, unlike film-forming coatings, and thus makes it possible to obtain optimized insulating properties.
  • compositions in question are used in the production of extruded insulating and / or sheathing and / or stuffing materials for energy and / or telecommunication cables.
  • composition may furthermore comprise other additives, especially antioxidants, UV stabilizing agents, plasticizing agents, pigmentation agents or coloring agents.
  • the plasticizing agents may be added to the composition according to the present invention in order to improve the elongation at break of said composition.
  • plasticizer of castor oil, crodamide or triethyl citrate.
  • the present invention is not limited to the examples of compositions which have just been described and generally relates to all the cables that can be envisaged from the general indications given in the description of the invention.

Claims (7)

  1. Energie- und/oder Telekommunikationskabel, das mindestens ein Bestandteil aufweist, das aus einem extrudierten Material aus einer extrudierbaren Zusammensetzung hergestellt ist, dadurch gekennzeichnet, dass die extrudierbare Zusammensetzung ein Biopolymer vom Typ mit einem biologisch abbaubaren Polyester komplexiertes Stärkepolymer umfasst.
  2. Energie- und/oder Telekommunikationskabel nach Anspruch 1, dadurch gekennzeichnet, dass die extrudierbare Zusammensetzung ferner ein synthetisches Polymer umfasst.
  3. Energie- und/oder Telekommunikationskabel nach Anspruch 2, dadurch gekennzeichnet, dass das synthetische Polymer aus dem Polyethylen, dem Polypropylen, dem Ethylvinylacetat-Copolymer, dem Polyvinylclorid und dem Polyester oder ihrem Gemisch ausgewählt ist.
  4. Energie- und/oder Telekommunikationskabel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass Bestandteil aus einem isolierenden Überzug, einer Schutzhülle und einer Füllstoff ausgewählt ist.
  5. Energie- und/oder Telekommunikationskabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die extrudierbare Zusammensetzung ferner eine flammwidrige Charge umfasst.
  6. Energie- und/oder Telekommunikationskabel nach Anspruch 5, dadurch gekennzeichnet, dass die flammwidrige Charge aus dem Aluminiumtrihydroxid Al(OH)3, dem Magnesiumdihydroxid Mg(HH)2, einem Gemisch aus hydratisiertem Magnesiumcarbonat und Kalzium- und Magnesiumcarbonat, dem Zinkborat und/oder dem Korkpulver ausgewählt ist.
  7. Energie- und/oder Telekommunikationskabel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die extrudierbare Zusammensetzung ferner andere Biopolymere umfasst, die aus den Zelluloseesterpolymeren, den Polyhydroxyalkanoatpolymeren und/oder den Polymilchsäurepolymeren, die ein Gemisch aus Polymilchsäure und Polyester umfassen, ausgewählt sind.
EP07150419A 2006-12-26 2007-12-26 Zusammensetzung für Energie- und/oder Telekommunikationskabel auf Biopolymerbasis Not-in-force EP1939895B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10167309A EP2244267A1 (de) 2006-12-26 2007-12-26 Zusammensetzung für Kabel und/oder Telekommunikation auf Biopolymerbasis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0655944A FR2910692A1 (fr) 2006-12-26 2006-12-26 Composition pour cable d'energie et/ou de telecommunication a base de biopolymere

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP10167309.3 Division-Into 2010-06-25

Publications (3)

Publication Number Publication Date
EP1939895A2 EP1939895A2 (de) 2008-07-02
EP1939895A3 EP1939895A3 (de) 2008-07-09
EP1939895B1 true EP1939895B1 (de) 2012-04-25

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Application Number Title Priority Date Filing Date
EP07150419A Not-in-force EP1939895B1 (de) 2006-12-26 2007-12-26 Zusammensetzung für Energie- und/oder Telekommunikationskabel auf Biopolymerbasis
EP10167309A Withdrawn EP2244267A1 (de) 2006-12-26 2007-12-26 Zusammensetzung für Kabel und/oder Telekommunikation auf Biopolymerbasis

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10167309A Withdrawn EP2244267A1 (de) 2006-12-26 2007-12-26 Zusammensetzung für Kabel und/oder Telekommunikation auf Biopolymerbasis

Country Status (4)

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US (1) US7884143B2 (de)
EP (2) EP1939895B1 (de)
AT (1) ATE555482T1 (de)
FR (1) FR2910692A1 (de)

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FR2880028B1 (fr) * 2004-12-24 2007-02-23 Nexans Sa Composition resistante au feu notamment pour materiau de cable d'energie et/ou de telecommunication
BR112012004108B1 (pt) 2009-08-27 2020-02-18 Cj Cheiljedang Corporation Composições de poliidroxialcanoato endurecidas
KR101106169B1 (ko) * 2009-12-30 2012-01-20 삼신이노텍 주식회사 친환경 이어폰 코드
CN101805463B (zh) * 2010-04-16 2013-04-17 安徽科聚新材料有限公司 一种淀粉填充可生物降解聚丙烯及其制备方法
FR2978966B1 (fr) * 2011-08-12 2013-09-27 Schneider Electric Ind Sas Materiau ignifuge comprenant un biopolymere.
CN109054254B (zh) 2012-08-17 2021-02-02 Cj第一制糖株式会社 用于聚合物共混物的生物基橡胶改性剂
CN103194013A (zh) * 2013-03-02 2013-07-10 安徽金田通信科技实业有限公司 一种低成本电缆填充料及其制备方法
CN103172922A (zh) * 2013-03-02 2013-06-26 安徽金田通信科技实业有限公司 一种多组分电缆填充料及其制备方法
EP3004225A1 (de) 2013-05-30 2016-04-13 Metabolix, Inc. Rezyklatmischungen
US10611903B2 (en) 2014-03-27 2020-04-07 Cj Cheiljedang Corporation Highly filled polymer systems
FR3029345B1 (fr) * 2014-11-27 2016-11-18 Nexans Cable comprenant un revetement a base d’un polymere plastique et de particules de cellulose fonctionnalisee
RU2741986C1 (ru) * 2020-05-12 2021-02-01 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кабардино-Балкарский государственный университет им. Х.М. Бербекова" (КБГУ) Биоразлагаемый материал
CN115873311A (zh) * 2022-12-23 2023-03-31 江西广源新材料有限公司 一种淀粉基镁盐粉体及其制备方法和应用以及能源线缆复合材料及其制备方法

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Also Published As

Publication number Publication date
ATE555482T1 (de) 2012-05-15
US7884143B2 (en) 2011-02-08
EP2244267A1 (de) 2010-10-27
US20080153941A1 (en) 2008-06-26
EP1939895A2 (de) 2008-07-02
FR2910692A1 (fr) 2008-06-27
EP1939895A3 (de) 2008-07-09

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