The changes of mechanical properties of epoxy/mica insulation materials in aging process

Author

Hao, Yanpeng ; Jia, Zhidong ; Jiang, Xiongwei ; Gao, Naikui ; Xie, Hengkun

Author_Institution

Lab. of Electr. Insulation for Power Equip., Xi´´an Jiaotong Univ., China

Volume

1

fYear

2000

fDate

2000

Firstpage

185

Abstract

The dynamic mechanical properties of epoxy/mica glass-fiber reinforced composites were studied at different aging stages under electrical-thermal stresses and thermal-mechanical stresses. A new method was proposed to calculate the apparent activation energy of glass transition (AAEGT) of epoxy/mica based on dynamic mechanical analysis (DMA) curves. It is suggested that dynamic mechanical parameters can be used to describe the aging characteristics of epoxy/mica

Keywords

ageing; composite insulating materials; dynamic testing; epoxy insulation; filled polymers; glass fibre reinforced plastics; glass transition; insulation testing; mica; activation energy; aging process; dynamic mechanical analysis; dynamic mechanical properties; electrical-thermal stresses; epoxy/mica glass-fiber reinforced composites; epoxy/mica insulation materials; glass transition; mechanical properties; thermal-mechanical stresses; Aging; Composite materials; Dielectrics and electrical insulation; Glass; Materials testing; Mechanical factors; Partial discharges; Stator windings; Thermal stresses; Viscosity;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICPADM.2000.875661

Filename

875661