Title :
The study on electrical insulation characteristics of Co60 γ-irradiated low density polyethylene containing anti-treeing additives
Author :
Ryu, B.H. ; Kim, K.Y. ; Lee, C. ; Lim, K.J. ; Park, S.G.
Author_Institution :
Dongguk Univ., Kyungju, South Korea
Abstract :
The effectiveness of diolcompounds as anti-treeing additives in low density polyethylene under radiation environments is evaluated in this study. 1,2-tetradecandiol, 1,10-decanediol, 1,8-octanediol were selected as anti-treeing additives. LDPE containing the additives was crosslinked with dicumyl peroxide, then these specimens were irradiated by Co60 γ-rays for 200 kGy under air atmosphere. Treeing inception voltage, propagation, AC breakdown strength and volume resistivity measurements were carried out for analysis of electrical insulation characteristics. The type of radicals on which connected additives gave very important clues to the changes in the results for each material. Also, the quantity of polar groups in molecular weight affected electrical insulation characteristics. As irradiated, the insulating characteristics showed a decreased tendency, because of produced conductive ions and gas by irradiation
Keywords :
electric breakdown; electrical resistivity; gamma-ray effects; insulation testing; polyethylene insulation; trees (electrical); 1,10-decanediol; 1,2-tetradecandiol; 1,8-octanediol; AC breakdown strength; Co60 γ-irradiation; anti-treeing additives; electrical insulation characteristics; low density polyethylene; polar groups; treeing inception voltage; volume resistivity; Additives; Breakdown voltage; Conducting materials; Dielectrics and electrical insulation; Inhibitors; Organic materials; Pollution measurement; Polyethylene; Polymers; Trees - insulation;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5459-1
DOI :
10.1109/ICPADM.2000.875754
