Electrical Conduction Characteristics of Low Density Polyethylene and Cross Linked Polyethylene Nanocomposite for High Voltage Direct Current Power Cable

2016 ◽  
Vol 16 (11) ◽  
pp. 11757-11761
Author(s):  
Yu-Min Kim ◽  
Jung-Hun Kwon ◽  
Ji-Sung Park ◽  
Kee-Joe Lim
Keyword(s):  
High Voltage ◽  
Direct Current ◽  
Electrical Conduction ◽  
Low Density Polyethylene ◽  
Power Cable ◽  
Low Density ◽  
High Voltage Direct Current

scholarly journals Enhanced Electrical Properties of Polyethylene-Graft-Polystyrene/LDPE Composites

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 124 ◽  
Author(s):  
Shuwei Song ◽  
Hong Zhao ◽  
Zhanhai Yao ◽  
Zhiyu Yan ◽  
Jiaming Yang ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Direct Current ◽  
Density Functional ◽  
Breakdown Strength ◽  
Density Functional Theory Calculation ◽  
Low Density Polyethylene ◽  
Low Density ◽  
High Voltage Direct Current ◽  
Current Characteristics ◽  
Ldpe Composites

Nanocomposite dielectrics show a great potential application in high voltage direct current cables for their obvious improvements in electrical properties. In the present manuscript, nanocomposite composed of low-density polyethylene and nanoscale polystyrene particles is studied by using low-density polyethylene grafted with polystyrene molecule. Fourier-transform infrared spectra reveal successful grafting of the polystyrene molecule onto the low-density polyethylene chain and the scanning electron microscope image shows the homogeneously dispersed nanoscale polystyrene particles. The presence of the polystyrene nanoparticles obviously improves the dielectric properties, such as the direct current breakdown strength and space charge inhibition. The conductivity and thermally stimulated current characteristics imply the deep traps in the composite increase obviously. Density functional theory calculation reveals that the grafted polystyrene can accommodate both shallow and deep electron carriers, and the depth of the hole traps are as deep as 2.07 eV.

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