A study on the Corona Electrification Phenomena for Polyvinyl chloride (PVC)

폴리염화비닐(PVC)의 코로나 대전현상에 관한 연구

  • 박구범 (유한전문대학 전기과) ;
  • 황명환 (인천대학교 산업안전공학과) ;
  • 조기선 (인천대학교 전기공학과) ;
  • 이덕출 (인하대학교 전기과) ;
  • 임헌찬 (인하대학교 전기공학과)
  • Published : 1992.06.01


In this thesis, the electrification phenomenon was studied by measurement of charging current and discharging current in polymers when the carriers generated by corona discharge were supplied to the surface of polymers. Corona charging current of PVC, polar and noncrystalline polymer, was larger than that of nonpolar and amorphous polymers. Corona charging current on the specimen of naked upper surface (CIM) was larger than charging current on the specimen of electrode made. Carrier injection differed from interfacial phase of polymer surFace. The transfer phenomenon vaned with chemical structure of polymer and then the polar effect of PVC was remarkable because of large electron affinity of Cl. In the characteristics of discharging current of PVC, the abnormal current was observed. It was supposed that this phenomena presented the trap of injected carriers in PVC and that static electricity phenomenon was generated by trap.