• DocumentCode
    3564086
  • Title

    Study of pigment influence in high density polyethylene electrical strength

  • Author

    Schwantes, D. ; Zanin, M.

  • Author_Institution
    Dept. of Mater. Eng., Fed. Univ. of Sao Carlos, Brazil
  • Volume
    1
  • fYear
    2005
  • Firstpage
    29
  • Abstract
    In this work, the TiO2 pigment influence in HDPE dielectric strength was analyzed. Chemical and structural characterizations were made to identify changes during the processing and the influence in the electrical properties. Formulations containing 0, 0.5, 1, 2.5, 4 and 6 of titanium dioxide were processed by extrusion and injection molding with stabilization-antioxidants, ultraviolet stabilizers and plasticizers. The electrical strength tests were analyzed by the statistical distribution of Weibull, and the maximum likelihood method. The high concentrations present lower values to electrical strength. The β parameter could be using to insulator particles dispersion. The TiO2 concentration variation shows that these incorporations implicate strength value increase has a maximum (5,35 MV/cm). High pigment concentration induces a fall in property values. Observing the βparameter, minimum experimental electric field (Ebmin) and electric strength value, found that the best electric perform formulation was the formulation with 2.5% TiO2 weight.
  • Keywords
    Weibull distribution; disperse systems; electric strength; extrusion; filled polymers; injection moulding; maximum likelihood estimation; polyethylene insulation; titanium compounds; βparameter; TiO2; Weibull statistical distribution; dielectric strength; electrical properties; electrical strength tests; extrusion; high density polyethylene electrical strength; injection molding; insulator particles dispersion; maximum likelihood method; pigment influence; plasticizers; stabilization-antioxidants; ultraviolet stabilizers; Atmospheric measurements; Calorimetry; Chemicals; Dielectric materials; Dielectrics and electrical insulation; Pigmentation; Polyethylene; Polymers; Temperature; Titanium;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on
  • Print_ISBN
    4-88686-063-X
  • Type

    conf

  • DOI
    10.1109/ISEIM.2005.193313
  • Filename
    1496034