Nissan Chemical Corporation Inorganic Materials

Nissan Chemical Corporation Inorganic Materials

Nano-composites Electrical insulating varnish

Our silica sol is used for various motor application to improve electrical insulating properties.
Breakdown time can be extended by adding nano silica.

Effect of nano silica on breakdown time

Testing method

Testing method

Voltage:20kV(AC)
Frequency:200Hz
Temperature:20℃
Atmosphere:Air

Voltage eundurance test result

V-t試験結果

Resin:Bisphenol F type epoxy resin
Hardener:Acid anhydride

Breakdown time was significantly extended
by adding Nissan's ORGANOSILICASOL to epoxy resin.

Electrical treeing properties

Testing method

Testing method

Distance between electrodes:2mm
Applied voltage:25kVrms

Electrical treeing test resultThis data was provided by Murakami laboratory (Toyohashi University of Technology).

Electrical treeing test result

Resin:Bisphenol F type epoxy resin
Hardener:Acid anhydride
Particle size:12nm

Propagation of electrical treeing was suppressed
by adding Nissan's ORGANOSILICASOL to epoxy resin and
increasing nano silica content.

Creepage discharge properties of epoxy/silica nano-composite in mineral oil

Testing method

Testing method

Creepage discharge test resultThis data was provided by Kozako laboratory (Kyushu Institute of Technology).

Creepage discharge test result

Resin:Bisphenol A type epoxy resin
Hardener:Acid anhydride
SiO2 content:3wt%

Creepage discharge was suppressed by
adding Nissan's ORGANOSILICASOL to epoxy resin.
Smaller particle size showed
a greater suppression effect.

Preferred products

It is just an example. Please contact us if you need more detailed information.

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Nissan Chemical Corporation
Performance Materials Division Inorganic Materials Department

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