Results 251 to 260 of about 865,254 (305)

Photoinduced Anisotropic Assembly of Conjugated Polymers in Insulating Polymer Blends

ACS Applied Materials & Interfaces, 2015
Low-dose UV irradiation of poly(3-hexylthiophene) (P3HT)-insulating polymer (polystyrene (PS) or polyisobutylene (PIB)) blend solutions led to the formation of highly ordered P3HT nanofibrillar structures in solidified thin films. The P3HT nanofibers were effectively interconnected through P3HT islands phase-separated from insulating polymer regions in
Mincheol, Chang, Dalsu, Choi, Gang, Wang, Nabil, Kleinhenz, Nils, Persson, Byoungnam, Park, Elsa, Reichmanis   +6 more
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Contact charging of insulating polymers

Journal of Applied Physics, 1985
A new model of contact charging based on the change of interfacial dipole energy is proposed. The model can be used to explain the charge exchange between an insulating polymer and a metal with a thin interfacial oxide layer. The energy shift of the polymeric electronic states relative to the metal Fermi level can be associated with the change in ...
W. Pong, D. Brandt, Z. X. He, W. Imaino
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Polymer-Impregnated Concrete Insulators/Insulating Structures

2019 IEEE Electrical Insulation Conference (EIC), 2019
This paper deals with polymer-impregnated concrete (PIC). It is the precursor to the polymer concrete (PC) insulating material currently in vogue in the industry all over the world. Even though it is based on a hydraulic cement system, synergism with an imposed polymeric phase in its matrix has yielded a super dielectric and insulating structural ...
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Laboratory aging of polymer insulators

2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2004
Accelerated aging was performed on a variety of insulators using different polymer bases. A fog chamber and a tracking wheel were used to provide a breadth of information on the aging processes. Each insulator type was subjected to aging in both systems, with matching samples being examined-both with and without prior UV exposure. It was found that the
P.B. McGrath, D.A. Klapp, C.W. Burns
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Diagnostics of EPDM polymer insulators

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319), 2003
In this paper the application of pattern recognition techniques as a tool for diagnostics of ethylene-propylene diene monomer (EPDM) polymer insulators is discussed. Assessment of degradation is carried out by taking small samples of insulator shed material in-situ with subsequent analysis of the samples by Fourier transform infrared spectroscopy (FTIR)
A. Krivda, G. Cash, D. Birtwhistle, G. George   +3 more
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Partial discharges in polymer insulation

Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1982, 1982
Evolving power conditioning system requirements in many technological areas will place severe demands upon long-lived, repetitive, pulse-power components. A major pacing system component in this high reliability, repetitive pulse-power technology is the energy storage capacitor [1].
J. R. Laghari, W. J. Sarjeant, R. Gupta, K. J. Bickford, T. Springer   +4 more
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Microstructured metallization of insulating polymers

Electrochimica Acta, 2003
Abstract Direct Ni electrodeposition on insulating polymers by the so-called PLATO technique is studied and the application of this technique for microstructured metallization is investigated. Propagation behavior, surface morphology, conductivity and thickness of a deposited metal layer are characterized using microscopy, AFM, four-point ...
T.T. Mai, J.W. Schultze, G. Staikov
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Development of a Thermochromic Polymer Insulator

IEEE Latin America Transactions, 2018
Intelligent materials are those that have the ability to change some physical property in a controlled manner. In the case of the developed insulator, property to be modified is the color. The main objective is that it indicates, by changing its color, when it is in fault condition, thereby facilitating system maintenance because one of the major ...
Rafael Martins, Vitoldo Swinka
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Optical pre-breakdown warnings in insulating polymers

ICSD'98. Proceedings of the 1998 IEEE 6th International Conference on Conduction and Breakdown in Solid Dielectrics (Cat. No.98CH36132), 1999
Most of the models involving microscopic physical processes in electrical ageing and degradation and breakdown have very little experimental background and suffer from a lack of practical feedback. We have developed an experimental approach based on the detection and the analysis of electroluminescence (EL) of technically important insulating polymer ...
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Accelerated aging of polymer insulators

Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2003
An accelerated aging investigation was performed on a variety of outdoor insulator materials. The materials were all commercial products fabricated using polymer bases including silicone rubber and EPDM. In this study the materials were subjected to synthetic acid rain solutions and aged on a tracking wheel.
P.B. McGrath, F.D. Crudele, C.W. Burns
openaire   +1 more source