Space-charge characteristics in polyethylene

Space-charge distributions in plate and coaxial cable samples of various polyethylene (PE) materials such as high density polyethylene, linear low density polyethylene, low density polyethylene, and cross-linking polyethylene under dc voltage are systematically investigated by the pulsed electro-acoustic method. The chemical structure and morphology of the sample materials are studied. The formation mechanism of space charge and the relations among space charge, chemical structure, and morphology are discussed. Our research results show that the distribution characteristics of space charge in various PE materials can be attributed to their chemical structure and morphology.

[1]  D. Meurer,et al.  Electrical Conducti on and Space Charge Formation in Semicrystalline Polymers , 1986, IEEE Transactions on Electrical Insulation.

[2]  T. Takada,et al.  Pulsed electro-acoustic method for measurement of space charge distribution in power cables under both DC and AC electric fields , 1993 .

[3]  Wang Huiming,et al.  Space charges and initiation of electrical trees , 1989 .

[4]  P. Phillips,et al.  Morphology - Electrical Property Relations in Polymers , 1978, IEEE Transactions on Electrical Insulation.

[5]  Jung-Ki Park,et al.  Effects of sample preparation conditions and short chains on space charge formation in LDPE , 1996 .

[6]  Y. Li,et al.  Progress in space charge measurement of solid insulating materials in Japan , 1994, IEEE Electrical Insulation Magazine.

[7]  M. Ieda.  Electrical Conduction and Carrier Traps in Polymeric Materials , 1983, IEEE Transactions on Electrical Insulation.

[8]  D. Klee,et al.  Space charge formation related to the morphology of polymers , 1989 .

[9]  J. J. O'Dwyer,et al.  The theory of electrical conduction and breakdown in solid dielectrics , 1973 .

[10]  Jacques Lewiner,et al.  Determination of space charge distributions in polyethylene samples submitted to 120 kV DC voltage , 1991 .

[11]  Demin Tu,et al.  Space charge in XLPE power cable under dc electrical stress and heat treatment , 1995 .

[12]  Teruyoshi Mizutani,et al.  Space charge measurement techniques and space charge in polyethylene , 1994 .

[13]  K. Suh,et al.  Electrical conduction in polyethylene with semiconductive electrodes , 1994 .

[14]  M. Ieda,et al.  Carroer Injection, Space Charge and Electrical Breakdown in Insulating Polymers , 1987, IEEE Transactions on Electrical Insulation.

[15]  T. Takada,et al.  Observation of charge behavior in multiply low‐density polyethylene , 1993 .

[16]  D. Das-gupta,et al.  Polyethylene: structure, morphology, molecular motion and dielectric behavior , 1994, IEEE Electrical Insulation Magazine.

[17]  K. Suh,et al.  Effects of constituents of XLPE on the formation of space charge , 1994 .

[18]  D. Tu,et al.  The influence of morphology on the electrical breakdown strength of polypropylene film , 1990 .