WO2012001313A2 - Materiau ptfe a effet anti-corona - Google Patents
Materiau ptfe a effet anti-corona Download PDFInfo
- Publication number
- WO2012001313A2 WO2012001313A2 PCT/FR2011/051529 FR2011051529W WO2012001313A2 WO 2012001313 A2 WO2012001313 A2 WO 2012001313A2 FR 2011051529 W FR2011051529 W FR 2011051529W WO 2012001313 A2 WO2012001313 A2 WO 2012001313A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ptfe
- weight
- lubricant
- metal oxide
- wetting agent
- Prior art date
Links
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
- H01B3/30—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
- H01B3/44—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 vinyl resins; acrylic resins
- H01B3/443—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 vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
- H01B3/445—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 vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/08—Insulating conductors or cables by winding
- H01B13/0891—After-treatment
-
- 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
- H01B7/02—Disposition of insulation
- H01B7/0241—Disposition of insulation comprising one or more helical wrapped layers of insulation
Definitions
- the present invention relates to a material based on polytetrafluoroethylene (PTFE) and its applications, such as the manufacture of electric cables.
- PTFE polytetrafluoroethylene
- This phenomenon also known as the corona effect, is influenced by various factors such as the nature and temperature of the material in which the discharge and the ambient air pressure take place. Indeed, when the air pressure decreases, the discharge appearance voltage also decreases. However, an airplane usually flies at an average altitude of 10,000 meters where the pressure is approximately 200 to 300 hPa. The flight conditions therefore favor the appearance of the corona effect.
- metal oxides also known as fillers
- titanium dioxide in extruded PTFE at levels which make it possible to obtain an anti-corona effect
- the presence of charge within the PTFE also causes problems during the extrusion of the material, such as the increase of the extrusion pressure or the risk of breakage in the calender. These phenomena can be solved by adding lubricant to the composition. However, during the drying step, the lubricant is also likely to create pores in the material in which it is incorporated, thus leading to a low density material.
- the present invention therefore relates to a material of polytetrafluoroethylene (PTFE), of usual density, prepared from a mixture comprising:
- a metal oxide preferably 5 to 12% by weight, more preferably 5 to 10% by weight
- a lubricant preferably 20 to 27% by weight
- a wetting agent preferably 0.3 to 0.7% by weight, the percentages by weight being given with respect to the total weight of PTFE.
- PTFE refers to unmodified or modified PTFE.
- modified a branched PTFE whose branch is linked to the carbon chain of PTFE via an oxygen atom is targeted.
- residual density is meant a PTFE-based material having a density greater than 1.45.
- metal oxide refers mainly to the oxides of alkaline earth metals, transition metals and poor metals.
- the metal oxide is selected from the group consisting of titanium dioxide, alumina, zinc oxide, copper oxide, magnesium oxide and silver oxide.
- the PTFE material as prepared above has the following composition:
- a metal oxide preferably 5 to 12% by weight, more preferably 5 to 10% by weight
- the lubricant is a hydrocarbon-based liquid, such as an isoparaffinic hydrocarbon, especially Isopar TM, and the wetting agent is a fatty alcohol, preferably dodecan-1-ol.
- the wetting agent allows a better miscibility of PTFE with the charges and thus promotes the production of a homogeneous mixture.
- Isopar TM (Exxon Mobil Chemical) is a blend of high purity synthetic isoparaffinic hydrocarbons.
- the material according to the invention thus makes it possible to dissipate the electrons created during the partial discharge (anti-corona effect).
- the choice of metal oxide and lubricant percentages as well as the presence of the wetting agent makes it possible to obtain a high density final PTFE material.
- this material can be prepared by extrusion.
- the particle size and the specific surface area of the metal oxide particles will be controlled.
- the material further comprises 0 to 3% by weight of a pigment.
- the material according to the invention is in the form of a ribbon, generally several kilometers long and 3 to 400 mm wide after extrusion and cutting.
- the ribbon will advantageously have a width of 5 to 30 mm.
- the invention also relates to a process for manufacturing a PTFE material as described above, comprising the steps of:
- the mixing step described above will be carried out in two stages.
- the method will then include the following steps:
- the process generally comprises two additional steps after extrusion:
- the calendering is carried out at a pressure greater than 150 bar and drying at a temperature ranging from 130 to 230 ° C.
- the ribbon can be delivered raw when it is intended to be used as raw material or cooked when it is already shaped in the finished product.
- the cooking step is in an oven at a temperature below 450 ° C, preferably below 400 ° C.
- the invention finally relates to the various uses of the material according to the invention.
- the material according to the invention is an electrical insulator, particularly suitable for the manufacture of electric cables.
- the characteristics of this material make it a material of choice for applications in the aeronautical field.
- the invention therefore relates to an electrical cable comprising a ribbon material according to the invention, wound around a conductive core.
- conductive core is intended to mean a strand allowing conductivity, such as a strand of copper or alumina a few millimeters in diameter, optionally treated with silver to improve the conductivity.
- the same cable may comprise one or more conductive cores. That may be surrounded by a polyimide film, for example of Kapton® type (Dupont), before winding by one or more ribbons according to the invention.
- a polyimide film for example of Kapton® type (Dupont)
- the cable may be prepared using a method comprising the steps of:
- the material according to the invention is used as an electrical insulator, in particular in the field of aeronautics. Indeed, in addition to its anticroconical effect, the material according to the invention advantageously has thermal resistance properties.
- the process comprises 3 steps:
- the metal oxide and PTFE powder are mixed to form the first mixture.
- this first mixture is sieved to avoid the presence of aggregates.
- the lubricant (Isopar), the wetting agent and optionally the pigments are then mixed to form a second mixture.
- the second mixture is then sprayed onto the first mixture and the resulting product is then mixed again and sieved to be homogeneous.
- Extrusion / calendering The product is then compacted to make a preform, usually a cylinder 30 cm high and 10 cm in diameter. These preforms are then extruded and then calendered to obtain a ribbon of the desired thickness (for example, 76 ⁇ " ⁇ ), which is then baked to evaporate the lubricant and is wound on a core.
- a preform usually a cylinder 30 cm high and 10 cm in diameter.
- These preforms are then extruded and then calendered to obtain a ribbon of the desired thickness (for example, 76 ⁇ " ⁇ ), which is then baked to evaporate the lubricant and is wound on a core.
- Cutting / packaging This last step is used to condition the ribbon (for example, pancake or universal coil).
- the ribbon can be delivered raw to customers. When it is used on the cable, it undergoes heat treatment at a maximum temperature of 450 ° C., preferably 380 ° C.
- Example 1 makes it possible to obtain an exploitable ribbon contrary to Example 2.
- the ribbon according to Example 2 has a sticky texture (delamination) and a non-homogeneous density.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2802592A CA2802592A1 (fr) | 2010-07-02 | 2011-06-30 | Materiau ptfe a effet anti-corona |
US13/807,891 US9728299B2 (en) | 2010-07-02 | 2011-06-30 | PTFE material having an anti-corona effect |
RU2012156264/04A RU2569368C2 (ru) | 2010-07-02 | 2011-06-30 | Птфэ-материал с противокоронной защитой |
BR112012033721-1A BR112012033721B1 (pt) | 2010-07-02 | 2011-06-30 | material à base de politetrafluoroetileno (ptfe), processo de fabricação de um material, cabo elétrico, processo de fabricação do cabo elétrico, e, utilização de um material |
EP11743273.2A EP2589050B1 (fr) | 2010-07-02 | 2011-06-30 | Materiau ptfe a effet anti-corona |
CN201180033266.0A CN103081030B (zh) | 2010-07-02 | 2011-06-30 | 具有防电晕效果的ptfe材料 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1055386 | 2010-07-02 | ||
FR1055386A FR2962128B1 (fr) | 2010-07-02 | 2010-07-02 | Materiau ptfe a effet anti-corona |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012001313A2 true WO2012001313A2 (fr) | 2012-01-05 |
WO2012001313A3 WO2012001313A3 (fr) | 2012-05-10 |
Family
ID=43587815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2011/051529 WO2012001313A2 (fr) | 2010-07-02 | 2011-06-30 | Materiau ptfe a effet anti-corona |
Country Status (8)
Country | Link |
---|---|
US (1) | US9728299B2 (fr) |
EP (1) | EP2589050B1 (fr) |
CN (1) | CN103081030B (fr) |
BR (1) | BR112012033721B1 (fr) |
CA (1) | CA2802592A1 (fr) |
FR (1) | FR2962128B1 (fr) |
RU (1) | RU2569368C2 (fr) |
WO (1) | WO2012001313A2 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2997544A1 (fr) * | 2012-10-29 | 2014-05-02 | Prod Plastiques Performants Holding 3P Holding | Cable comprenant un revetement a base de ptfe |
CN105131481A (zh) * | 2015-09-30 | 2015-12-09 | 国网山东蓬莱市供电公司 | 一种电力电缆绝缘层复合材料的配方 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103275371A (zh) * | 2013-05-06 | 2013-09-04 | 张选 | 一种改性聚乙烯交联料 |
US9881714B2 (en) | 2014-06-19 | 2018-01-30 | Saint-Gobain Performance Plastics Corporation | Laser-markable insulation material for wire or cable assemblies |
US10256009B2 (en) | 2014-06-19 | 2019-04-09 | Saint-Gobain Performance Plastics Corporation | Laser-markable insulation material for wire or cable assemblies |
KR102133544B1 (ko) | 2014-06-23 | 2020-07-13 | 사우쓰와이어 컴퍼니, 엘엘씨 | 자외선-저항성 초소수성 코팅 조성물 |
CN105175959A (zh) * | 2015-07-14 | 2015-12-23 | 安徽春辉仪表线缆集团有限公司 | 一种城市轨道交通用耐热抗腐蚀电缆料及其制备方法 |
CN105348589B (zh) * | 2015-11-10 | 2018-03-13 | 芜湖航天特种电缆厂股份有限公司 | 航空航天用编织防波套 |
CN107123472B (zh) * | 2017-05-04 | 2018-11-30 | 江苏亨鑫科技有限公司 | 用于移动基站的耐高温电缆 |
CN107266836A (zh) * | 2017-08-24 | 2017-10-20 | 苏州新区特氟龙塑料制品厂 | 一种光滑抗菌特氟龙塑料 |
US10889727B1 (en) | 2018-06-14 | 2021-01-12 | Southwire Company, Llc | Electrical cable with improved installation and durability performance |
CN109251447A (zh) * | 2018-07-31 | 2019-01-22 | 中远海运科技股份有限公司 | 耐电晕放电的聚四氟乙烯材料及其加工方法 |
Citations (1)
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US20040031620A1 (en) | 2002-05-25 | 2004-02-19 | Klaus Lerchenmueller | Corona-resistant wire |
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US2985918A (en) * | 1959-01-20 | 1961-05-30 | Raybestos Manhattan Inc | Method for forming shaped lengths of tetrafluoroethylene polymers having a cellular structure |
US3054761A (en) * | 1960-06-22 | 1962-09-18 | Raybestos Manhattan Inc | Extrudable composition comprising tetrafluoroethylene, methyl methacrylate, and a volatile organic lubricant |
US3577346A (en) | 1968-11-14 | 1971-05-04 | Minnesota Mining & Mfg | Insulated electrical conductors having corona resistant polymeric insulation containing organo metallic compounds |
US4537804A (en) | 1982-05-05 | 1985-08-27 | General Electric Company | Corona-resistant wire enamel compositions and conductors insulated therewith |
US4493873A (en) | 1982-05-05 | 1985-01-15 | General Electric Company | Corona-resistant wire enamel compositions and conductors insulated therewith |
GB9322092D0 (en) | 1993-10-27 | 1993-12-15 | Raychem Sa Nv | Article and method for protecting substrates |
WO1995023178A1 (fr) | 1994-02-25 | 1995-08-31 | Daikin Industries, Ltd. | Procede de fabrication d'un moulage en polytetrafluoroethylene au moyen d'un lubrifiant, d'un deshydrateur a bande presseuse, et procede de deshydratation de produits solides humides |
US5861578A (en) | 1997-01-27 | 1999-01-19 | Rea Magnet Wire Company, Inc. | Electrical conductors coated with corona resistant, multilayer insulation system |
WO1999008288A1 (fr) | 1997-08-06 | 1999-02-18 | Schenectady International, Inc. | Revetement resistant aux decharges partielles destine aux fils laques |
DE10201833B4 (de) | 2002-01-18 | 2012-06-21 | Hew-Kabel Gmbh | Verfahren zur Herstellung eines Wickelbandes aus ungesintertem Polytetrafluorethylen |
CN1195008C (zh) | 2002-04-14 | 2005-03-30 | 宁波登天氟材有限公司 | 聚四氟乙烯微孔膜制造方法 |
US7049522B2 (en) * | 2004-03-10 | 2006-05-23 | Judd Wire, Inc. | Lightweight composite electrical conductors and cables incorporating same |
US20060065428A1 (en) | 2004-07-13 | 2006-03-30 | Kummer Randy D | Electrical cable having a surface with reduced coefficient of friction |
JP4945104B2 (ja) | 2005-08-26 | 2012-06-06 | 株式会社東芝 | 耐アーク性に優れた絶縁物 |
FR2892049B1 (fr) * | 2005-10-14 | 2008-05-02 | Plastic Omnium Cie | Procede de gainage d'un cable a l'aide d'un ruban en matiere synthetique, moyens de conditionnement de ce ruban en attente d'utilisation pour le gainage d'un cable et ruban ainsi conditionne |
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US7767745B2 (en) | 2008-02-26 | 2010-08-03 | General Electric Co. | Methods of making a mixture for a PTFE membrane with metal oxides, and compositions related thereto |
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-
2010
- 2010-07-02 FR FR1055386A patent/FR2962128B1/fr not_active Expired - Fee Related
-
2011
- 2011-06-30 EP EP11743273.2A patent/EP2589050B1/fr active Active
- 2011-06-30 BR BR112012033721-1A patent/BR112012033721B1/pt active IP Right Grant
- 2011-06-30 US US13/807,891 patent/US9728299B2/en active Active
- 2011-06-30 CA CA2802592A patent/CA2802592A1/fr not_active Abandoned
- 2011-06-30 WO PCT/FR2011/051529 patent/WO2012001313A2/fr active Application Filing
- 2011-06-30 CN CN201180033266.0A patent/CN103081030B/zh active Active
- 2011-06-30 RU RU2012156264/04A patent/RU2569368C2/ru active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040031620A1 (en) | 2002-05-25 | 2004-02-19 | Klaus Lerchenmueller | Corona-resistant wire |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2997544A1 (fr) * | 2012-10-29 | 2014-05-02 | Prod Plastiques Performants Holding 3P Holding | Cable comprenant un revetement a base de ptfe |
WO2014068246A1 (fr) * | 2012-10-29 | 2014-05-08 | Produits Plastiques Performants Holding - 3P Holding | Câble comprenant un revêtement à base de ptfe |
CN104812819A (zh) * | 2012-10-29 | 2015-07-29 | 三品高性能塑料制品控股公司 | 包括基于ptfe的包覆物的线缆 |
RU2624304C2 (ru) * | 2012-10-29 | 2017-07-03 | Продюит Пластик Перформанс Холдинг - 3П Холдинг | Кабель, содержащий покрытие на основе политетрафторэтилена |
CN105131481A (zh) * | 2015-09-30 | 2015-12-09 | 国网山东蓬莱市供电公司 | 一种电力电缆绝缘层复合材料的配方 |
Also Published As
Publication number | Publication date |
---|---|
BR112012033721B1 (pt) | 2021-05-18 |
EP2589050A2 (fr) | 2013-05-08 |
RU2569368C2 (ru) | 2015-11-27 |
CA2802592A1 (fr) | 2012-01-05 |
RU2012156264A (ru) | 2014-08-10 |
EP2589050B1 (fr) | 2020-02-26 |
CN103081030B (zh) | 2016-05-11 |
WO2012001313A3 (fr) | 2012-05-10 |
CN103081030A (zh) | 2013-05-01 |
US9728299B2 (en) | 2017-08-08 |
BR112012033721A2 (pt) | 2017-11-07 |
FR2962128A1 (fr) | 2012-01-06 |
FR2962128B1 (fr) | 2013-06-14 |
US20130264090A1 (en) | 2013-10-10 |
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