EP2244267A1 - Zusammensetzung für Kabel und/oder Telekommunikation auf Biopolymerbasis - Google Patents

Zusammensetzung für Kabel und/oder Telekommunikation auf Biopolymerbasis Download PDF

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Publication number
EP2244267A1
EP2244267A1 EP10167309A EP10167309A EP2244267A1 EP 2244267 A1 EP2244267 A1 EP 2244267A1 EP 10167309 A EP10167309 A EP 10167309A EP 10167309 A EP10167309 A EP 10167309A EP 2244267 A1 EP2244267 A1 EP 2244267A1
Authority
EP
European Patent Office
Prior art keywords
energy
polylactic acid
telecommunication cable
polyester
cable according
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.)
Withdrawn
Application number
EP10167309A
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English (en)
French (fr)
Inventor
Jérôme 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
Publication of EP2244267A1 publication Critical patent/EP2244267A1/de
Withdrawn legal-status Critical Current

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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.
  • 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.
  • said extrudable composition comprises a biopolymer chosen from cellulose ester polymers, starch polymers complexed with a biodegradable polyester, polyhydroxyalkanoate polymers, and / or or polylactic acid polymers comprising a mixture of polylactic acid and polyester.
  • 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.
  • 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.
  • 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.
  • 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 from 1 to 5 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 1 100 pcr Cellulose 2 100 pcr Starch N F03A 2 bis 100 pcr Starch NF08 3 25 pcr Starch NF03A, and 75 pc PE 4 100 pb PHB 5 100 pcr PLA-polyester 467F 5 bis 100 pcr PLA-polyester 219F 6 100 pcr EVA 7 100 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
  • biopolymer-based samples according to the present invention have identical or better mechanical properties as well as fire resistance properties than the polymers of the prior art. and EVA.
  • 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 8, 9 and 12 to 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 1, 2, 5 and 5 bis of Table 1 are extruded on a metal conductor of 1.03 mm diameter in a layer of approximately 0.50 mm, in order to obtain the respective electrical wires 1, 2, 5 and 5 bis.
  • the extrusion profile for the composition 1 extends from 145 ° C. to 200 ° C. under a pressure of 150 bar, that of the composition 2 extends from 100 ° C. to 135 ° C. under a pressure of 135 bar. and that of compositions 5 and 5a extends from 120 to 150 ° C under a pressure of 190 bars, these extrusion profiles 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 continuous voltage of between 80V and 500V is then applied for a sufficient duration (between 1 and 5 min) then the resistance of the crown 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.
EP10167309A 2006-12-26 2007-12-26 Zusammensetzung für Kabel und/oder Telekommunikation auf Biopolymerbasis Withdrawn EP2244267A1 (de)

Applications Claiming Priority (2)

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
EP07150419A EP1939895B1 (de) 2006-12-26 2007-12-26 Zusammensetzung für Energie- und/oder Telekommunikationskabel auf Biopolymerbasis

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP07150419.5 Division 2007-12-26

Publications (1)

Publication Number Publication Date
EP2244267A1 true EP2244267A1 (de) 2010-10-27

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Family Applications (2)

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 Before (1)

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

Country Status (4)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102597107B (zh) 2009-08-27 2015-09-16 梅塔玻利克斯公司 增韧的聚羟基烷酸酯组合物
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.
US9475930B2 (en) 2012-08-17 2016-10-25 Metabolix, Inc. Biobased rubber modifiers for polymer blends
US10669417B2 (en) 2013-05-30 2020-06-02 Cj Cheiljedang Corporation Recyclate blends
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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JP2004311064A (ja) * 2003-04-02 2004-11-04 Fujikura Ltd 直流電力ケーブル

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Also Published As

Publication number Publication date
ATE555482T1 (de) 2012-05-15
FR2910692A1 (fr) 2008-06-27
EP1939895A2 (de) 2008-07-02
US20080153941A1 (en) 2008-06-26
EP1939895B1 (de) 2012-04-25
EP1939895A3 (de) 2008-07-09
US7884143B2 (en) 2011-02-08

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