TY - GEN
T1 - Enhancing Breakdown and Space Charge Characteristics of Maleic Anhydride-Grafted LLDPE
AU - Zhang, Zhuolin
AU - Chen, Yun
AU - Qiao, Jian
AU - Yang, Wei
AU - Wu, Kangning
AU - Zhong, Lisheng
AU - Li, Jianying
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - Linear low-density polyethylene (LLDPE) is widely used in high-voltage direct current (HVDC) cable insulation due to its excellent processing and mechanical properties. However, under high electric fields, it tends to experience space charge accumulation and electric field distortion, which limits its application in higher voltage systems. Experimental results show that maleic anhydride-grafted polyethylene (PE-MAH) significantly reduces dielectric loss, improves DC breakdown strength by 10.4%, and suppresses space charge accumulation. Surface potential decay (ISPD) tests and density functional theory (DFT) calculations demonstrate that polar functional groups can induce deeper trap states, thereby effectively controlling charge transport. These findings suggest that polar functionalization at the molecular level can enhance insulation reliability, offering a new approach to improving polyolefinbased materials for HVDC cable applications.
AB - Linear low-density polyethylene (LLDPE) is widely used in high-voltage direct current (HVDC) cable insulation due to its excellent processing and mechanical properties. However, under high electric fields, it tends to experience space charge accumulation and electric field distortion, which limits its application in higher voltage systems. Experimental results show that maleic anhydride-grafted polyethylene (PE-MAH) significantly reduces dielectric loss, improves DC breakdown strength by 10.4%, and suppresses space charge accumulation. Surface potential decay (ISPD) tests and density functional theory (DFT) calculations demonstrate that polar functional groups can induce deeper trap states, thereby effectively controlling charge transport. These findings suggest that polar functionalization at the molecular level can enhance insulation reliability, offering a new approach to improving polyolefinbased materials for HVDC cable applications.
UR - https://www.scopus.com/pages/publications/105025059560
U2 - 10.1109/CEIDP61707.2025.11218613
DO - 10.1109/CEIDP61707.2025.11218613
M3 - 会议稿件
AN - SCOPUS:105025059560
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 913
EP - 916
BT - 2025 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 100th IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2025
Y2 - 14 September 2025 through 17 September 2025
ER -