Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/659147
Title: Effects of wind condition on hydrophobicity behavior of silicone rubber in corona discharge environment
Authors: B. X. Du;Hang Xu;Yong Liu
subject: corona discharge|hydrophobicity recovery|contact angle|High-speed railway|silicone rubber insulator|hydrophobicity loss|wind condition
Year: 2016
Publisher: IEEE
Abstract: Silicone rubber (SiR) insulators are employed in high-speed railway as roof insulators, which have to continuously face the challenge of strong wind. Corona discharge can degrade the SiR surface and lead to hydrophobicity loss. In order to research the influence of wind on corona behavior of SiR, high-temperature vulcanized silicone rubber (HTV-SiR) specimens were exposed to corona environment under different wind conditions. The variations in corona discharge intensity, discharge current and hydrophobicity changes were measured and analyzed. The recurrent plot (RP) method was introduced to extract features from discharge current. In addition, the effects of wind on hydrophobicity recovery rate were also investigated. The experimental results reveal that the hydrophobicity loss during corona can be inhibited or accelerated depending on the wind direction, and the wind with higher speed has greater influence on the corona performance. Moreover, it is found that the wind can blow away the low molecular weight (LMW) and slow down the hydrophobicity recovery, while the wind pressure can accelerate the hydrophobicity recovery.
Description: 
URI: http://localhost/handle/Hannan/170334
http://localhost/handle/Hannan/659147
ISSN: 1070-9878
volume: 23
issue: 1
Appears in Collections:2016

Files in This Item:
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Title: Effects of wind condition on hydrophobicity behavior of silicone rubber in corona discharge environment
Authors: B. X. Du;Hang Xu;Yong Liu
subject: corona discharge|hydrophobicity recovery|contact angle|High-speed railway|silicone rubber insulator|hydrophobicity loss|wind condition
Year: 2016
Publisher: IEEE
Abstract: Silicone rubber (SiR) insulators are employed in high-speed railway as roof insulators, which have to continuously face the challenge of strong wind. Corona discharge can degrade the SiR surface and lead to hydrophobicity loss. In order to research the influence of wind on corona behavior of SiR, high-temperature vulcanized silicone rubber (HTV-SiR) specimens were exposed to corona environment under different wind conditions. The variations in corona discharge intensity, discharge current and hydrophobicity changes were measured and analyzed. The recurrent plot (RP) method was introduced to extract features from discharge current. In addition, the effects of wind on hydrophobicity recovery rate were also investigated. The experimental results reveal that the hydrophobicity loss during corona can be inhibited or accelerated depending on the wind direction, and the wind with higher speed has greater influence on the corona performance. Moreover, it is found that the wind can blow away the low molecular weight (LMW) and slow down the hydrophobicity recovery, while the wind pressure can accelerate the hydrophobicity recovery.
Description: 
URI: http://localhost/handle/Hannan/170334
http://localhost/handle/Hannan/659147
ISSN: 1070-9878
volume: 23
issue: 1
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7422582.pdf3.37 MBAdobe PDFThumbnail
Preview File
Title: Effects of wind condition on hydrophobicity behavior of silicone rubber in corona discharge environment
Authors: B. X. Du;Hang Xu;Yong Liu
subject: corona discharge|hydrophobicity recovery|contact angle|High-speed railway|silicone rubber insulator|hydrophobicity loss|wind condition
Year: 2016
Publisher: IEEE
Abstract: Silicone rubber (SiR) insulators are employed in high-speed railway as roof insulators, which have to continuously face the challenge of strong wind. Corona discharge can degrade the SiR surface and lead to hydrophobicity loss. In order to research the influence of wind on corona behavior of SiR, high-temperature vulcanized silicone rubber (HTV-SiR) specimens were exposed to corona environment under different wind conditions. The variations in corona discharge intensity, discharge current and hydrophobicity changes were measured and analyzed. The recurrent plot (RP) method was introduced to extract features from discharge current. In addition, the effects of wind on hydrophobicity recovery rate were also investigated. The experimental results reveal that the hydrophobicity loss during corona can be inhibited or accelerated depending on the wind direction, and the wind with higher speed has greater influence on the corona performance. Moreover, it is found that the wind can blow away the low molecular weight (LMW) and slow down the hydrophobicity recovery, while the wind pressure can accelerate the hydrophobicity recovery.
Description: 
URI: http://localhost/handle/Hannan/170334
http://localhost/handle/Hannan/659147
ISSN: 1070-9878
volume: 23
issue: 1
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7422582.pdf3.37 MBAdobe PDFThumbnail
Preview File