Interface electric field of carbon black loaded electrode and its significant influence on charge injection into polyethylene

2011 ◽  
Vol 123 (5) ◽  
pp. 3017-3022 ◽  
Author(s):  
Chun Xiao ◽  
Yewen Zhang ◽  
Zhenlian An ◽  
Feihu Zheng ◽  
Wenjie Wei ◽  
...  
Keyword(s):  
Carbon Black ◽  
Electric Field ◽  
Significant Influence ◽  
Charge Injection

scholarly journals Charge Injection Characteristics of Semi-Conductive Composites with Carbon Black-Polymer for HVDC Cable

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1134 ◽  
Author(s):  
Yanhui Wei ◽  
Mingyue Liu ◽  
Wang Han ◽  
Guochang Li ◽  
Chuncheng Hao ◽  
...  
Keyword(s):  
Carbon Black ◽  
Electric Field ◽  
Bottom Electrode ◽  
Charge Injection ◽  
Experimental Results ◽  
Uniform Electric Field ◽  
Insulation Material ◽  
Electrode Structure ◽  
Depolarization Current ◽  
Conductive Composites

Semi-conductive composites composed of carbon black-polymer play an important role in uniform electric field in high voltage direct current (HVDC) cable. They also affect space charge behaviors in the insulation material. However, the charge injection characteristics of semi-conductive composites are not detailed. In this work, the electrode structure of ‘Semi-conductive composites- Insulation material- Metal bottom’ (S-I-M) is proposed, and the currents formed by injected charges from semi-conductive composites are characterized by the thermally stimulated depolarization current (TSDC) method. Further, the experimental results based on the structure of S-I-M are compared with the traditional electrode structure of M-I-M (Metal upper electrode- Insulation material- Metal bottom electrode) and the simplified cable electrode structure of MS-I-M (Metal upper electrode-Semi-conductive electrode- Insulation material- Metal bottom electrode), respectively. The experimental results show that the semi-conductive composite plays an important role in the charge injection process and it presents a different tendency under different compound modes of temperature and electric field. For the low electric field (E ≤ 5 kV/mm) and the low temperature (T ≤ 50 °C), the current caused by the accumulated charges follows the rule, IS > IMS > IM. For the low electric field and high temperature (T > 50 °C), the current caused by the injected charges follows the rule, IMS > IM > IS. This phenomenon is closely related to the interface characterization and contact barrier.

Electric Field Analysis of Space Charge Injection from a Conductive Nano-Filler Electrode

2010 ◽  
Vol 27 (7) ◽  
pp. 077303 ◽  
Author(s):  
Xiao Chun ◽  
Zhang Ye-Wen ◽  
Zheng Fei-Hu ◽  
Wei Wen-Jie ◽  
An Zhen-Lian
Keyword(s):  
Electric Field ◽  
Space Charge ◽  
Charge Injection ◽  
Field Analysis ◽  
Electric Field Analysis

ER Properties of a Suspension of Polymer Graft Carbon Black Particles

1999 ◽  
Vol 13 (14n16) ◽  
pp. 1682-1688
Author(s):  
Masayoshi Konishi ◽  
Teruhisa Nagashima ◽  
Yoshinobu Asako
Keyword(s):  
Shear Stress ◽  
Carbon Black ◽  
Electric Field ◽  
Silicone Oil ◽  
Average Particle Size ◽  
Average Particle ◽  
Zero Field ◽  
Average Value ◽  
Time Period ◽  
Micron Size

We newly developed ER particles with sub-micron size. The particle was polymer graft carbon black (GCB1) composed of carbon black particles and a polymer. The average particle size of GCB1 was found to be 81 nm. An ER suspension (ER1) was obtained by mixing GCB1 (30 wt%) with silicone oil (70 wt%). The ER1 showed excellent dispersion stability. Further, GCB1 particles did not settle under centrifuging at 9000G. The zero-field viscosity was 80 mPa·s at 25°C. The kinetic friction coefficient of ER1 was 0.15, while that of the silicone oil used was 0.23. When the electric field of 3 kV/mm (AC 1000 Hz) at the temperature of 25°C and the shear rate of 700 s -1 was applied to ER1, the shear stress of 116Pa was induced. The induced shear stress did not change for a long period of time period. In the temperature range between 25 and 150°C the induced shear stress and the current density were almost constant at any electric field. When 3 kV/mm (AC 50Hz) at 25°C and 700s-1 was applied to ER1, the shear stress of 88Pa was induced but the deviation of the induced shear stress from the average value was pluses and minuses 3 Pa.

The influence of electric field on the polymerization of polymer-carbon black composites

1989 ◽  
Vol 29 (2-3) ◽  
pp. 259-264
Author(s):  
B. Jachym ◽  
I. Witort ◽  
G. Wis̀niewski
Keyword(s):  
Carbon Black ◽  
Electric Field

A vertically stacked phosphorescent multilayer organic light emitting transistor

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90873-90877 ◽  
Author(s):  
Ritu Verma ◽  
Vandana Yadav ◽  
Khushdeep Kaur ◽  
Md Bayazeed Alam ◽  
Nidhi Singh ◽  
...  
Keyword(s):  
Electric Field ◽  
Organic Materials ◽  
Charge Injection ◽  
Light Emitting ◽  
Organic Light ◽  
Source Electrode

The fabricated VOLETs have a working voltage of less than 5 V with a luminance of 3450 Cd m−2. The charge injection with a gate electric field is mainly governed by the choice of organic materials and rough source electrode.

Electrostrictive polymer composite for energy harvesters and actuators

2011 ◽  
Vol 31 (2-3) ◽  
Author(s):  
Pierre-Jean Cottinet ◽  
Daniel Guyomar ◽  
Benoit Guiffard ◽  
Laurent Lebrun ◽  
Chatchai Putson
Keyword(s):  
Carbon Black ◽  
Electric Field ◽  
Mechanical Energy ◽  
Inorganic Materials ◽  
Nanocomposite Films ◽  
Attractive Alternative ◽  
Volume Percentage ◽  
Energy Harvesters ◽  
Electrostrictive Polymer ◽  
Materials Used

Abstract Polymers have attractive properties when compared with inorganic materials: they are lightweight, inexpensive, pliable, and easily processed and manufactured. They can be configured into complex shapes and their properties can be tailored according to demand. With the rapid advances in materials used in science and technology, various substances embedded with intelligence at the molecular level are being developed. A type of electroactive polymer known as electrostrictive has shown considerable promise for a variety of applications, such as actuation with a strain thickness of 15% for an electric field of 10 V/μm. Polyurethane-based nanocomposite films were prepared by incorporating a carbon black nanopowder (C) into the polymer matrix. Electric field-induced strain measurements revealed that a loading of 1 vt% C (volume percentage of carbon black nanopowder) increased the strain level by a factor of 2.5 at a moderate field strength (10 V/μm). Moreover, another application for this material concerned the harvesting of mechanical energy, which constitutes an attractive alternative to the strict reliance on traditional batteries with limited lifetimes. For instance, an effective conversion from the mechanical-to-electric domains of 2.3 μW/cm3, under a transverse vibration level of 0.25% at 100 Hz, has been demonstrated for nylon. The final results indicated that the dielectric constant was a crucial parameter for energy harvesting.

scholarly journals Determination of threshold electric field for charge injection in polymeric materials

2015 ◽  
Vol 106 (19) ◽  
pp. 192901 ◽  
Author(s):  
Ning Liu ◽  
Churui Zhou ◽  
George Chen ◽  
Lisheng Zhong
Keyword(s):  
Electric Field ◽  
Charge Injection ◽  
Polymeric Materials
Sign in / Sign up

Export Citation Format

Share Document