WO2008141910A1 - Schutzbeschichtung und verwendung davon für fahrleitungsisolatoren - Google Patents
Schutzbeschichtung und verwendung davon für fahrleitungsisolatoren Download PDFInfo
- Publication number
- WO2008141910A1 WO2008141910A1 PCT/EP2008/055433 EP2008055433W WO2008141910A1 WO 2008141910 A1 WO2008141910 A1 WO 2008141910A1 EP 2008055433 W EP2008055433 W EP 2008055433W WO 2008141910 A1 WO2008141910 A1 WO 2008141910A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- incorporated
- insulators
- protective
- nanoparticles
- protective lacquer
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
- H01B19/04—Treating the surfaces, e.g. applying coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
Definitions
- the invention relates to novel coatings for catenary insulators, in particular in the field of railway electrification and energy transmission.
- insulators The long-term stability of insulators against weathering, ie UV radiation, humidity and other aggressive environmental influences is ensured by the fact that the insulators are coated with sheaths made of materials with excellent hydrophobicity properties.
- these shells of the composite insulators comprise silicone and / or PTFE.
- the application of these sheaths requires additional steps in the production and causes considerable costs.
- polymer insulators of epoxy casting resins and glass fiber reinforced plastics with thermosetting resin matrix of unsaturated polyester or epoxy resins are often provided with no additional protective layer and thus weather resistant.
- the insulating body of these polymer insulators usually consists of a solid profile or a solid shaft with umbrellas and thus of only one organic material. Examples include GRP insulating skids and cast resin insulators.
- Section insulators with GRP insulated skids have the task of subdividing the overhead contact line into individual switching and supply sections. These switching and feeding sections are replaced by the Separators isolated from each other. Current collector passages on the section insulators may cause arcing and these arcs may damage the isolation runners of the section insulator.
- the object of the invention is therefore to increase the long-term stability of the cost-effective single-material insulators outdoors and / or to make the shells for composite insulators more cost-effective.
- the object of the invention and solution of the problem is a protective lacquer based on thermosetting plastic for coating single-material insulators and / or as a shell for composite insulators in the micropowder, nanoparticles and / or colloids, which, depending on their nature, hydrophobic functional groups have, are incorporated.
- thermosetting lacquer matrices such as polyurethane or SiIi kon coatings
- the contact angles to water can be raised from approx. 80 ° to> 120 °.
- the SiO 2 nanoparticles and / or colloids are used, for example, in the form of prefabricated sols. These are, for example, commercially available and products from FEW Chemicals, Wolfen, Germany, such as the H4019, are used.
- the hydrophobicity in PU or silicone coatings could also be increased by incorporating boron nitride (BN) micropowder. As the BN concentration increases, the hydrophobicity of the paint surfaces increases.
- BN boron nitride
- a polyurethane protective lacquer which has a contact angle of 83 ° without addition is mentioned by way of example, while with a 10% by weight boron nitride additive a contact angle of 105 ° is achieved.
- the contact angles of the protective lacquers according to the invention are above 110 ° to water, although the invention may naturally also include protective lacquers with a lower contact angle.
- Boron nitride micropowder may be incorporated into the protective lacquer in amounts of from 5 to 60% by weight, preferably in amounts of from 5 to 50% by weight, particularly preferably in amounts of from 10 to 35% by weight, as the exemplary embodiment demonstrates.
- the hydrophobized nanoparticles can be incorporated by simply mixing in the paint components. Special mixing devices such as bead mills, torus mills etc. are not required. The distribution of the nanoparticles in the paint is very homogeneous, since the particles are incorporated as stable sols.
- Coatings with the PU paints modified according to the invention which are well suited for exterior use as a paint matrix due to the high weathering resistance, remain in weathering tests over 1000 hours alternating UVA irradiation of> 10 mW / cm 2 for 650 hours, intensive irrigation (650 hours). den) and storage at 50 0 C for 50 hours hydrophobic.
- the layer thicknesses were about 10 to 40 .mu.m, in particular between 15 and 30 .mu.m, particularly preferably about 20 .mu.m.
- boron nitride (BN) doped silicone coatings With boron nitride (BN) doped silicone coatings, the contact angles remain at values> 110 ° even after the weathering test.
- the BN doped silicone coatings are thus the most stable to weathering.
- An exemplary embodiment of such a silicone varnish can be produced from 810 g Powersil 567 (Wacker AG) and 90 g boron nitride from the company HCStarck.
- the invention relates to a novel coating for catenary insulators, in particular in the field of railway electrification and energy transmission, which is simple and inexpensive to produce. For this purpose, particles and micropowders, in particular hydrophobic particles, are incorporated into the protective lacquer.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08750002A EP2158274A1 (de) | 2007-05-21 | 2008-05-02 | Schutzbeschichtung und verwendung davon für fahrleitungsisolatoren |
BRPI0812150-8A2A BRPI0812150A2 (pt) | 2007-05-21 | 2008-05-02 | Revestimento protetor e uso do mesmo para isoladores de linha de tração |
US12/451,481 US20100129631A1 (en) | 2007-05-21 | 2008-05-02 | Protective coating and use thereof for overhhead trolley wire insulators |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007023557A DE102007023557B4 (de) | 2007-05-21 | 2007-05-21 | Schutzbeschichtung und Verwendung davon für Fahrleitungsisolatoren |
DE102007023557.9 | 2007-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008141910A1 true WO2008141910A1 (de) | 2008-11-27 |
Family
ID=39650930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/055433 WO2008141910A1 (de) | 2007-05-21 | 2008-05-02 | Schutzbeschichtung und verwendung davon für fahrleitungsisolatoren |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100129631A1 (de) |
EP (1) | EP2158274A1 (de) |
BR (1) | BRPI0812150A2 (de) |
DE (1) | DE102007023557B4 (de) |
WO (1) | WO2008141910A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111574861A (zh) * | 2020-04-21 | 2020-08-25 | 华南理工大学 | 一种常温下快速成膜的超疏水SiO2涂料及其制备方法和应用 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008030904A1 (de) * | 2008-06-30 | 2009-12-31 | Siemens Aktiengesellschaft | Verbundmaterial mit Nano-Pulver und Verwendung des Verbundmaterials |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5747565A (en) * | 1990-02-23 | 1998-05-05 | Somar Corporation | Powder coating composition |
JP2005112908A (ja) * | 2003-10-03 | 2005-04-28 | Totoku Electric Co Ltd | 無機フィラー分散絶縁塗料および絶縁電線 |
US20070149677A1 (en) * | 2005-12-26 | 2007-06-28 | Industrial Technology Research Institute | Fire-resistant wire/cable |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5863595A (en) * | 1996-10-04 | 1999-01-26 | Dow Corning Corporation | Thick ceramic coatings for electronic devices |
MY122234A (en) * | 1997-05-13 | 2006-04-29 | Inst Neue Mat Gemein Gmbh | Nanostructured moulded bodies and layers and method for producing same |
DE10205442A1 (de) * | 2002-02-08 | 2003-08-21 | Basf Ag | Hydrophiles Compositmaterial |
DE102004009287A1 (de) * | 2004-02-26 | 2005-09-15 | Institut Für Neue Materialien Gem. Gmbh | Amphiphile Nanopartikel |
TWI342323B (en) * | 2007-01-22 | 2011-05-21 | Chang Chun Plastics Co Ltd | Thermoset resin modified polyimide resin composition |
-
2007
- 2007-05-21 DE DE102007023557A patent/DE102007023557B4/de not_active Expired - Fee Related
-
2008
- 2008-05-02 EP EP08750002A patent/EP2158274A1/de not_active Withdrawn
- 2008-05-02 BR BRPI0812150-8A2A patent/BRPI0812150A2/pt not_active IP Right Cessation
- 2008-05-02 US US12/451,481 patent/US20100129631A1/en not_active Abandoned
- 2008-05-02 WO PCT/EP2008/055433 patent/WO2008141910A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5747565A (en) * | 1990-02-23 | 1998-05-05 | Somar Corporation | Powder coating composition |
JP2005112908A (ja) * | 2003-10-03 | 2005-04-28 | Totoku Electric Co Ltd | 無機フィラー分散絶縁塗料および絶縁電線 |
US20070149677A1 (en) * | 2005-12-26 | 2007-06-28 | Industrial Technology Research Institute | Fire-resistant wire/cable |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111574861A (zh) * | 2020-04-21 | 2020-08-25 | 华南理工大学 | 一种常温下快速成膜的超疏水SiO2涂料及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
DE102007023557B4 (de) | 2010-11-25 |
EP2158274A1 (de) | 2010-03-03 |
US20100129631A1 (en) | 2010-05-27 |
DE102007023557A1 (de) | 2008-12-04 |
BRPI0812150A2 (pt) | 2014-11-18 |
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