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U.S. Department of Energy
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Development of polymer-bonded silica (POLYSIL) for electrical applications. Final report

Technical Report ·
DOI:https://doi.org/10.2172/7215552· OSTI ID:7215552
The development for high voltage electrical insulation applications of a new family of composite materials systems is described. This insulation can effectively replace electrical porcelain with significant technical and cost advantages, coupled with considerable savings in total energy consumption. These materials systems, trademarked under the name POLYSIL, are essentially polymer concrete and polymer impregnated concrete reinforced with randomly dispersed, chopped alkali-resistant glass or organic (aramid) fibers. Both cross-linked low viscosity acrylic and polyester resins were used as the organic phase of the composites. Coatings such as plasma-sprayed fluorocarbon and inorganic glass-resins were examined to enhance the surface characteristics and performance of the composite insulation, especially in polluted environments. Data on the dielectric, mechanical, and physical properties of POLYSIL are presented and discussed in detail, together with examples of insulator prototypes made with these promising and versatile material systems.
Research Organization:
Westinghouse Electric Corp., Pittsburgh, PA (USA). Research and Development Center
OSTI ID:
7215552
Report Number(s):
EPRI-EL-488
Country of Publication:
United States
Language:
English