Title :
A swelling characteristics of PET in oil
Author :
Abe, Keiichi ; Maeda, Teruhiko ; Shimonaka, Toshiomi ; Umemura, Tokihiro
Author_Institution :
Toshiba Corp., Mie, Japan
Abstract :
The swelling behavior of PET (polyethylene terepthalate) film immersed in insulating liquid was investigated, and the swelling kinetics of the PET was evaluated. It was found that the swelling behavior can be measured more effectively by a weight measurement than by a thickness measurement. The swelling process was found to be proportional to the square root of time. The swelling of the PET caused a change in the glass transition temperature, which can be explained by Fox´s equation
Keywords :
cable insulation; insulation testing; organic insulating materials; polymer films; swelling; transformer insulation; Fox´s equation; PET; glass transition temperature; insulating liquid; polyethylene terepthalate; swelling behavior; swelling kinetics; weight measurement; Dielectric liquids; Glass; Insulation; Kinetic theory; Petroleum; Plastic films; Polyethylene; Positron emission tomography; Thickness measurement; Weight measurement;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0565-5
DOI :
10.1109/CEIDP.1992.283129
