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Title:
NANOMETER ALUMINIUM OXIDE MODIFIED INSULATION PAPER AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/112523
Kind Code:
A1
Abstract:
A method for preparing nanometer aluminium oxide modified insulation paper, comprising: preparing a nanometer aluminium oxide solution, dissociating cellulose insulation paper at least once to prepare a pulp solution, mixing the nanometer aluminium oxide solution with the pulp solution, mechanically oscillating and uniformly stirring the same, and preparing the nanometer aluminium oxide modified insulation paper. The content of the nanometer aluminium oxide in the modified insulation paper is 0.2-2%. The nanometer aluminium oxide is used to modify the insulation paper, thus increasing an alternating current breakdown strength of the insulation paper, and reducing a relative dielectric constant and dielectric loss factor of a power frequency.

Inventors:
LV, Yandong (No. 500, Jiangyue Road Minhang District, Shanghai 4, 201114, CN)
LIAO, Ruijin (High-voltage testing facility in A Area of Chongqing University, Shapingba District, Chongqing 4, 400044, CN)
ZHAO, Xuetong (High-voltage testing facility in A Area of Chongqing University, Shapingba District, Chongqing 4, 400044, CN)
LIANG, Ningchuan (High-voltage testing facility in A Area of Chongqing University, Shapingba District, Chongqing 4, 400044, CN)
ZHANG, Junyan (High-voltage testing facility in A Area of Chongqing University, Shapingba District, Chongqing 4, 400044, CN)
PERRIER, Christophe (130 rue Leon Blum, Villeurbanne, Villeurbanne, Villeurbanne, FR)
COULIBALY, Mamadou-Lamine (129 Avenue de Paris, Massy, Massy, Massy, FR)
Application Number:
CN2015/070835
Publication Date:
July 21, 2016
Filing Date:
January 16, 2015
Export Citation:
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Assignee:
ALSTOM TECHNOLOGY LTD. (Brown Boveri Strasse 7, Baden, Baden, CH)
LV, Yandong (No. 500, Jiangyue Road Minhang District, Shanghai 4, 201114, CN)
International Classes:
D21H27/12; D21H17/67; H01B17/56; H01B19/00; H01F27/32
Foreign References:
CN102723152A2012-10-10
CN101901637A2010-12-01
Other References:
LIAO, RUIJIN ET AL.: "Insulating Properties of Insulation Paper Modified by Nano-Al2O3 for Power Transformer", JOURNAL OF ELECTRIC POWER SCIENCE AND TECHNOLOGY, vol. 29, no. 1, 31 March 2014 (2014-03-31), pages 3 - 7
LV CHENG: "Studies on the Preparation and Properties of Cellulose Insulation Paper Modified by Nano-TiO2", CHINESE DOCTORAL DISSERTATIONS FULL-TEXT DATABASE ENGINEERING SCIENCE AND TECHNOLOGY, vol. II, no. 12, 15 December 2014 (2014-12-15), pages C042 - 3
LIAO, RUIJING ET AL.: "Preparation of Montmorillonite Modified Insulation Paper and Study on Its Electrical Characteristics", HIGH VOLTAGE ENGINEERING, vol. 40, no. 1, 31 January 2014 (2014-01-31), pages 33 - 39
ZHANG, FUZHOU ET AL.: "Preparation for Low-permittivity Insulation Paper and Its Breakdown Performance", HIGH VOLTAGE ENGINEERING, vol. 38, no. 3, 31 March 2012 (2012-03-31), pages 691 - 696, XP032271550
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (435 Guiping Road, Shanghai 3, 200233, CN)
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