EP2529377A2 - Matériau composite isolant pour isolation électrique et procédé de fabrication et d'utilisation dudit matériau - Google Patents

Matériau composite isolant pour isolation électrique et procédé de fabrication et d'utilisation dudit matériau

Info

Publication number
EP2529377A2
EP2529377A2 EP11715216A EP11715216A EP2529377A2 EP 2529377 A2 EP2529377 A2 EP 2529377A2 EP 11715216 A EP11715216 A EP 11715216A EP 11715216 A EP11715216 A EP 11715216A EP 2529377 A2 EP2529377 A2 EP 2529377A2
Authority
EP
European Patent Office
Prior art keywords
composite material
material according
insulation composite
nanoparticles
filler powder
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Withdrawn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
EP11715216A
Other languages
German (de)
English (en)
Inventor
Wilfried Albert
Peter GRÖPPEL
Jürgen Huber
Gerhard Piecha
Matthias ÜBLER
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2529377A2 publication Critical patent/EP2529377A2/fr
Withdrawn legal-status Critical Current

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
    • H01B3/40—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 epoxy resins

Definitions

  • Insulating composite material for electrical insulation for electrical insulation, method of making and using same
  • reaction resin mixture micro scale sized, inorganic fillers such as a silica derivative such as alpha-quartz or amorphous fused silica, alumina , Mica, boron nitride, in proportions of up to
  • the object of the invention is to provide an insulating composite material for electrical insulation, a process for producing the insulation composite and a use of the isolati ⁇ onsverbundmaterials having performances when casting a low viscosity and yet good fracture mechanical whole.
  • the insulation composite of the invention for electrical ⁇ rule insulation comprises a resin component, a Härterkompo ⁇ component and dispersed in the insulation composite material Artstoffpulvermischung, which fraction a first Gustoffpulver- of microparticles and a second Grestoffpulver- fraction having from nanoparticles, wherein the Pellevertei ⁇ development of Artstoffpulvermischung is bimodal and has a proportion in the insulation composite of 60 to 80 wt .-% and the second Golfstoffpulverfr forcingen a proportion of 0.1 to 6 wt .-% in the insulation composite material.
  • the particle distribution of the filler powder mixture preferably does not overlap the grain size distributions of the nanoparticles and the microparticles.
  • the nanoparticles of the second filler powder fraction are preferably made from a polymer, in particular based on polybutadiene and / or polybutadiene-polystyrene copolymer.
  • the Harzkom ⁇ component is also preferably an epoxy resin or a higher functional epoxy resin based on bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, or a cycloaliphatic resin or mixtures thereof.
  • the hardener component is preferably based on the type of anhydride hardener, which is in particular a phthalic anhydride, a methyltetrahydrophthalic anhydride, a methylhexahydrophthalic anhydride or another anhydridi ⁇ cal derivative.
  • the microparticles of the first filler powder fraction preferably have a particle size of 0.3-300 ym.
  • the microparticles of the first Medstoffpulverfr from the groups of globular and angular metal, semi-metal oxides, carbides, or hydroxides chosen in particular from the group consisting of quartz powder, fused silica, aluminum ⁇ oxide, silicon carbide, Aluminum hydroxide and Magnesiumhydro ⁇ xid. Furthermore, it is preferred that the surface of the micro ⁇ particles of the first Medstoffpulverfr forcing is matrix compatible.
  • the nanoparticles of the second filler powder fraction preferably have a spherical shape and are produced in particular on the basis of polybutadiene, polystyrene or their hybrid as butadiene-styrene copolymer. It is preferred that the nanoparticles of the second filler powder fraction have a particle size of 50-120 nm and are substantially free of agglomeration and / or aggregates. In addition, the nanoparticles of the second filler powder fraction are preferably surface-compatibilized by a polymeric methyl methacrylate derivatization.
  • the erfindunbe process for producing the insulation ⁇ composite material comprises the steps of: mixing the nano ⁇ particles in the resin component; Generating a reaction resin system.
  • the insulation composite material is used as potting in the manufacture of an insulation component for medium and high-voltage applications, in particular for plug and cable bushings, cable fittings, support isolators, fuse boxes, couplings for busbars and voltage and current transformers.
  • the insulation composite material according to the invention advantageously has both improved fracture mechanical properties and a low casting compound viscosity. Specifically, this means that the insulation composite material d relieve high fluidically has its casting compound, whereby a high molding material ⁇ fracture toughness (critical stress intensity factor), a high molding material fracture energy (critical fracture energy), a low thermal molding material volume expansion, a high molding glass transition range and low Vergussmas - Sever viscosity is achieved.
  • the Grestoffpulvermi- research in the insulating composite has a higher packing ⁇ density than the grain size distributions of the Grestoffpul ⁇ verfr pressen alone, whereby the reactive resin system made from the insulation composite ⁇ material a dynamic Vis viscosity of from, for example, advantageously 2-30 Pa-s in Scherra ⁇ ten Colour from 0.01 to 500 s -1 has temperatures ⁇ at typical processing Tempe.
  • the inventively achieved reduction of the visco ⁇ sity of the insulation composite material and the increase of its fracture mechanics characteristics is achieved by the provision of the nanoparticle masterbatches. It's created a particle charged with nano- dispersion which has a iden ⁇ tables base matrix as to improving Urmatrix the epoxy resin formulation.
  • the nanoparticles are deaggregated in the insulation composite material and form a low-viscosity dispersion.
  • the provision of the nanoparticles in combination with the microparticles in the insulation composite material shows a lowering of the processing viscosity, although the filler volume content increases with respect to a referenced, nanoparticle-free mixture.
  • the nanoparticles By lowering the processing viscosity of the potting compound of the insulation composite by the invention dung proper incorporation of the nanoparticles is taking place in situ particle packing coefficient optimization ⁇ he can see.
  • the nanoparticles occupy the interstices and the gussets between the microparticles, whereby the dynamic viscosity of the insulating composite material drops at typical processing temperatures.
  • Quartz powder at low levels of polybutadiene nanoparticles a decrease in viscosity with simultaneous improvement of the molding material fracture mechanics.
  • inventively reduced Vergussmassenviscosity opens the option to further increase the filler content in order to achieve a leveling of the original reference fluidity. In this way it is possible to realize increased Grestoffantei- le in epoxy resin formulations, which would otherwise be reached only by temperature increases or additional flow aids. Due to the increased proportion of filler Particles are also advantageous the fracture toughness and the minimum required fracture energies additionally increased.
  • a resin component A comprises bisphenol A diglycidyl ether and a hardener component B has methyl tetrahydrophthalic anhydride.
  • the mixing ratio is 100: 82 (m / m).
  • the reference system is a nanoparticle-free reference system (reference).
  • Tab. 1 Filler compositions and rheological properties
  • the combination of a micro-scale filler material ⁇ invention with completely deagglomerated nanoparticles has light using epoxy resin molding for the electrical technology, in particular for switchgear components, which are improved under fracture mechanical aspects, but at the same time there are no adverse effects on the fluidity of the underlying potting compound.
  • the base matrix may comprise an aromatic resin of the type bisphenol A diglycidyl ether or bisphenol F diglycidyl ether or cycloaliphatic epoxy resins.
  • the accelerating substance is a tertiary amine such as dimethylbenzylamine or lmidazolderivate advantageous.
  • Additives such as defoamers, dispersing aids, dye and flexibilisers may be added in small amounts.
  • the use of polybutadiene nanoparticles or polybutadiene-polystyrene-co-polymer nanoparticles is particularly expedient, which can be derivatized with a polymethyl methacrylate layer on the particle surface for better compatibility with the resin matrix
  • the preferred P die-shell particles.
  • the particles have a fully deagglomerated Morpho ⁇ logy and are not aggregated to form clusters.
  • the content of nanoparticles is 0.1-6 wt .-%.
  • the use of the formulations according to the invention in the electrical switchgear technology is relevant, for.
  • the use of the formulations according to the invention in the electrical switchgear technology is relevant, for.
  • the manufacture of durometer-based plug and cable feedthroughs, cable fittings, post insulators, fuse chambers, busbar couplings and voltage and current transformers is relevant, for.

Abstract

L'invention concerne un matériau composite isolant pour isolation électrique présentant un composant résineux, un composant durcisseur et un mélange pulvérulent de matières de charge qui est réparti dans le matériau composite isolant et présente une première fraction pulvérulente de matières de charge constituée de microparticules et une seconde fraction pulvérulente de matières de charge constituée de nanoparticules. La répartition des particules du mélange pulvérulent de matières de charge est bimodale et présente dans le matériau composite isolant une part comprise entre 60 et 80 % en poids, les secondes fractions pulvérulentes de matières de charge présentant une part comprise entre 0,1 et 6 % en poids dans le matériau composite isolant.
EP11715216A 2010-04-19 2011-04-13 Matériau composite isolant pour isolation électrique et procédé de fabrication et d'utilisation dudit matériau Withdrawn EP2529377A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010015398A DE102010015398A1 (de) 2010-04-19 2010-04-19 Isolationsverbundmaterial zur elektrischen Isolation, Verfahren zur Herstellung und Verwendung desselben
PCT/EP2011/055816 WO2011131537A2 (fr) 2010-04-19 2011-04-13 Matériau composite isolant pour isolation électrique et procédé de fabrication et d'utilisation dudit matériau

Publications (1)

Publication Number Publication Date
EP2529377A2 true EP2529377A2 (fr) 2012-12-05

Family

ID=44280646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11715216A Withdrawn EP2529377A2 (fr) 2010-04-19 2011-04-13 Matériau composite isolant pour isolation électrique et procédé de fabrication et d'utilisation dudit matériau

Country Status (4)

Country Link
EP (1) EP2529377A2 (fr)
CN (1) CN102834875A (fr)
DE (1) DE102010015398A1 (fr)
WO (1) WO2011131537A2 (fr)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
DE102011083409A1 (de) * 2011-09-26 2013-03-28 Siemens Aktiengesellschaft Isoliersysteme mit verbesserter Teilentladungsbeständigkeit, Verfahren zur Herstellung dazu
EP2623565A1 (fr) * 2012-02-06 2013-08-07 Siemens Aktiengesellschaft Matière première de réparation
DE102012205046A1 (de) * 2012-03-29 2013-10-02 Siemens Aktiengesellschaft Elektroisolationskörper für eine Hochspannungsrotationsmaschine und Verfahren zum Herstellen des Elektroisolationskörpers
CN103694636B (zh) * 2013-12-10 2015-12-09 中国科学院过程工程研究所 一种电气绝缘环氧树脂组合物、制备方法及其用途
CN104177780B (zh) * 2014-08-20 2016-08-31 国家电网公司 一种户外型电气绝缘改性环氧树脂组合物
CN104900299B (zh) * 2015-04-10 2017-01-18 西北核技术研究所 一种表面具有均匀空穴分布的聚合物绝缘子及其制备方法
CN104882233B (zh) * 2015-05-11 2017-03-01 江苏江城电气有限公司 一种风电管母线专用绝缘薄膜的生产工艺
CA2988827C (fr) * 2015-06-16 2023-08-22 Huntsman Advanced Materials Licensing (Switzerland) Gmbh Composition de resine epoxy
DE102015218839A1 (de) * 2015-09-30 2017-03-30 Siemens Aktiengesellschaft Vergussmasse und Verwendung dazu
CN105801001A (zh) * 2016-03-01 2016-07-27 昆山东大智汇技术咨询有限公司 一种耐火型浇注母线的矿物质浇注原料配方及工艺
CN108305723A (zh) * 2018-02-01 2018-07-20 清华大学 基于非线性材料掺杂的盆式及支柱绝缘子
DE102019204191A1 (de) * 2019-03-27 2020-10-01 Siemens Aktiengesellschaft Gießharz, Formstoff daraus, Verwendung dazu und eine elektrische Isolierung
DE102019204190A1 (de) * 2019-03-27 2020-10-01 Siemens Aktiengesellschaft Gießharz, Formkörper daraus und Verwendung des Formkörpers
CN114496429B (zh) * 2022-03-07 2022-10-11 华北电力大学 基于纳米静电吸附的非线性电导复合材料及其制备方法

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ES2151949T3 (es) * 1994-12-13 2001-01-16 Ciba Sc Holding Ag Masas de colada endurecibles, a base de resina epoxi, que contienen un promotor de tenacidad del tipo nucleo/envoltura.
DE10330020A1 (de) * 2003-07-03 2005-01-20 Degussa Ag Hochgefüllte Silan-Zubereitung
DE10345139A1 (de) 2003-09-29 2005-04-21 Bosch Gmbh Robert Härtbares Reaktionsharzsystem
CN101423651B (zh) * 2007-11-02 2010-12-15 中国船舶重工集团公司第七二五研究所 低温、高导热、电绝缘环氧树脂纳米复合材料制备工艺
DE102008030904A1 (de) * 2008-06-30 2009-12-31 Siemens Aktiengesellschaft Verbundmaterial mit Nano-Pulver und Verwendung des Verbundmaterials

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Also Published As

Publication number Publication date
CN102834875A (zh) 2012-12-19
WO2011131537A2 (fr) 2011-10-27
DE102010015398A1 (de) 2011-10-20
WO2011131537A3 (fr) 2012-05-03

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