TY - GEN
T1 - Improving Surface flashover Performance of LDPE by Dopamine Based on Bionic Technology
AU - Yue, Wenying
AU - Nie, Yongjie
AU - Li, Shengtao
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/9/19
Y1 - 2018/9/19
N2 - In this paper, dc vacuum surface flashover properties of low density polyethylene (LDPE) film covered with dopamine (Dp)-silver (Ag)-Dopamine (Dp) sandwich structure on the surface by immersing LDPE in dopamine solution(6h), silver nitrate (0.5h, 1h, 2h, 4h) and dopamine (24h) solution in order was researched. Scanning electron microscopic (SEM), surface potential decay (SPD) and Keithley 6517B were used as characterization methods to evaluate surface morphology, surface trap distribution and surface conductivity separately. These parameters may reveal the influence mechanism of Dp-Ag-Dp sandwich structure on samples surface. SEM images shows that nano-Ag particles attaching on the surface of samples and their size and quantity become larger with silver nitrate solution immersing time prolonging. SPD results indicates that both shallow and deep trap depth move to the deeper direction with increasing modification time, while shallow trap and deep trap density decreases first and then increases with the increase of treating time. Surface conductivity enlarges over silver nitrate processing time. For dc vacuum surface flashover voltage, the results presents that its value increases with silver nitrate treatment time when the samples were soaked in silver nitrate solution for less than 2h. It can be concluded that by modifying surface parameters like trap distribution and surface conductivity covering LDPE film surface with dopamine-silver-dopamine sandwich structure can change dc vacuum surface flashover performance.
AB - In this paper, dc vacuum surface flashover properties of low density polyethylene (LDPE) film covered with dopamine (Dp)-silver (Ag)-Dopamine (Dp) sandwich structure on the surface by immersing LDPE in dopamine solution(6h), silver nitrate (0.5h, 1h, 2h, 4h) and dopamine (24h) solution in order was researched. Scanning electron microscopic (SEM), surface potential decay (SPD) and Keithley 6517B were used as characterization methods to evaluate surface morphology, surface trap distribution and surface conductivity separately. These parameters may reveal the influence mechanism of Dp-Ag-Dp sandwich structure on samples surface. SEM images shows that nano-Ag particles attaching on the surface of samples and their size and quantity become larger with silver nitrate solution immersing time prolonging. SPD results indicates that both shallow and deep trap depth move to the deeper direction with increasing modification time, while shallow trap and deep trap density decreases first and then increases with the increase of treating time. Surface conductivity enlarges over silver nitrate processing time. For dc vacuum surface flashover voltage, the results presents that its value increases with silver nitrate treatment time when the samples were soaked in silver nitrate solution for less than 2h. It can be concluded that by modifying surface parameters like trap distribution and surface conductivity covering LDPE film surface with dopamine-silver-dopamine sandwich structure can change dc vacuum surface flashover performance.
KW - Dc surface flashover
KW - Dopamine
KW - Trap distribution
UR - https://www.scopus.com/pages/publications/85055870400
U2 - 10.1109/ICD.2018.8468481
DO - 10.1109/ICD.2018.8468481
M3 - 会议稿件
AN - SCOPUS:85055870400
T3 - 2018 IEEE 2nd International Conference on Dielectrics, ICD 2018
BT - 2018 IEEE 2nd International Conference on Dielectrics, ICD 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE International Conference on Dielectrics, ICD 2018
Y2 - 1 July 2018 through 5 July 2018
ER -