Impulse Dielectric Breakdown Characteristics due to Network Structure Variation of Epoxy Composites

Epoxy 복합재료의 망목구조 변화에 따른 임펄스 절연파괴 특성

  • 이덕진 (광운대학교 전기공학과) ;
  • 김경환 (경원대학교 전기전자공학부) ;
  • 김명호 (경원전문대학 건축설비과) ;
  • 손인환 (광운대학교 전기공학과) ;
  • 김탁용 (광운대학교 전기공학과) ;
  • 김재환 (광운대학교 전기공학과)
  • Published : 1997.04.01


A series of interpenetrating polymer networks(IPN) based on Epoxy, MA and PU were synthesized in order to improve withstand voltage properties of Epoxy resin. Dielectric breakdown characteristics are investigated for six types of specimens. As a result, it was found that impulse voltage dielectric breakdown characteristic of SIN specimen was the most excellent. It was also found that SIN specimens were stronger than anything else in scanning electron microscopy. On the other hand, as a result of consideration of dielectric breakdown strength change according to adding fi1ter, it was confirmed that the decrease of dielectric breakdown strength are controlled slightly by IPN method.