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Electrical tree growth in microsilica-filled epoxy resin
IEEE Transactions on Dielectrics and Electrical Insulation, 2020Epoxy resin is widely deployed as a high voltage electrical insulation material when compounded with inorganic fillers. However, in the laboratory, the filler prevents visual observation of the long-term degradation known as electrical treeing. To date therefore, much laboratory testing has been conducted on unrepresentative unfilled materials.
Chen, Siyuan +4 more
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“Teflon” polytetrafluoroethylene resin as an electrical insulator
1949 Conference on Electrical Insulation, 1949“Teflon” is the du Pont trade name for the polymer made from tetrafluorethylene. The polymer has a linear chain structure of carbon atoms, to each of which is attached two fluorine atoms. It is capable of continuously withstanding operating temperatures in the range of 200 to 300°C.
C. G. Brodhun, J. R. Perkins
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Electrical properties of epoxy resins
1993Epoxy resins are widely used for coating and encapsulating electrical circuit components and electronic devices, where they serve to isolate a device from adverse environmental effects of atmospheric gases, moisture, current leakage, solvents, micro-organisms, mechanical shock and vibrations.
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Application of Epoxy Resins in Electrical Apparatus
IEEE Transactions on Electrical Insulation, 1974This summarizes the important physical and electrical characteristics of these diverse and highly useful insulating materials. Factors of chemical structure which influence the resulting resin properties are discussed. The great variety of properties which can be achieved through variations in this one class of resins is emphasized.
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The electrical properties of filled epoxy resin systems - a comparison
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117), 2002The electrical properties of an epoxy resin system for use as machine insulation containing either ZnO or Al/sub 2/O/sub 3/ fillers have been investigated. The fillers impart non-linear current-voltage characteristics to the materials. The electrical conductivities of plaques of epoxy containing filler were a function of the applied electric field ...
Mackersie, J.W. +3 more
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A review of electrical tests for insulating resins
Proceedings of the 19th Electrical Electronics Insulation Conference, 2003Manufacturers of electrical products review a variety of performance characteristics of an insulating resin. In order to compare resins, tests are available which measure various mechanical and electrical properties. Dielectric strength, dissipation factor, and dielectric constant tests are reviewed.
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Void formation and electrical breakdown in epoxy resin
IEEE Transactions on Power Apparatus and Systems, 1977The long term behaviour of epoxy resin subjected to high alternating electrical stress was studied using optical magnifications of up to 1500, a scanning electron microscope, and a high sensitivity discharge detector. The formation of voids in initially void-free specimens was investigated when voltages of duration between ten seconds and several ...
Y. Shibuya +2 more
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“Glass resins: A new material for electrical applications”
1965 Sixth Electrical Insulation Conference, 19651. The Glass Resins are a new member of the silicone polymers, being a pure thermosetting resin.
Carl A. Johnson, Robert E. Martin
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Epoxy casting resins with improved electrical conductivity
Colloid and Polymer Science, 1981It is reported on chemical modification of epoxy resins in order to enhance electricaldc-conductivity from 10−18 S/cm to 10−13 S/cm. Two methods of solution have been committed. The first method is based on semiconducting organic model substances having chemical structure similar to bisphenol A based epoxy resins. Substituting the hardener partially by
R. Huber, G. Weddigen
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Activity of Adesmia boronioides resinous exudate against phytopathogenic bacteria
Natural Product Research, 2021Alejandro Madrid +2 more
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