Title :
Methods to obtain high toughness epoxy casting insulation material
Author :
Haishan, Sun ; Bingli, Yu
Author_Institution :
Northwest Electr. Power Test & Res. Inst., Xian, China
Abstract :
Preventing cracking is very important for casting insulation material, especially for large epoxy casting insulation products, and improving material toughness is the most feasible approach. Various methods to improve the toughness of the bisphenol-anhydride epoxy system were studied. By properly combining the methods explained, impact toughness can be increased by two times, without much deterioration of other properties
Keywords :
casting; epoxy insulation; fracture toughness; hardening; bisphenol-anhydride epoxy system; crack prevention; epoxy casting insulation material; impact toughness; large epoxy casting insulation products; toughness improvement; Casting; Curing; Dielectric losses; Dielectrics and electrical insulation; Epoxy resins; Internal stresses; Materials testing; Rubber; Scanning electron microscopy; Stress measurement;
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.2000.876400
