Morphology change and tree initiation of polyethylene

Author

Yan, Ping ; Zhou, Yuanxiang ; Sun, Guangsheng ; Yoshimura, Noboru

Author_Institution

Inst. of Electr. Eng., Acad. Sinica, Beijing, China

fYear

2001

fDate

2001

Firstpage

631

Lastpage

634

Abstract

Electrical trees are greatly influenced by the morphological structure in semi-crystalline polymers. In this paper, samples of polyethylene (PE) films have been annealed. The electrical tree initiation voltages of these samples also have been measured. It was found that the thickness of lamellae is the important parameter that affects the tree initiation. It was also found that the thermal stability could be related to the thickness of lamellae. It was considered that the larger the thickness of lamellae, the higher the thermal stability, which results in the more difficult tree initiation

Keywords

annealing; polyethylene insulation; polymer films; polymer structure; thermal stability; trees (electrical); annealing; electrical tree initiation voltage; lamellae thickness; morphological structure; polyethylene film; semi-crystalline polymer; thermal stability; Annealing; Crystallization; Optical films; Optical microscopy; Polyethylene; Polymers; Surface morphology; Temperature; Thermal stability; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on

Conference_Location

Himeji

Print_ISBN

4-88686-053-2

Type

conf

DOI

10.1109/ISEIM.2001.973750

Filename

973750