NASA NTRS · 19850000193
Lightweight Electrical Insulation
Abstract
Hollow plastic spheres expanded and fused together. Hollow, gasfilled plastic spheres piled in mold. Heating in vacuum softens and expands spheres, forcing them together into nearly regular hexagonal close packing. Foam used as lightweight, electrically insulating material in place of solid ceramic, glass, or polymer. Padding to protect against mechanical shocks another application for such dense, regular foam.
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Schroeder, J. E.. 1985-10-01. Lightweight Electrical Insulation. https://ntrs.nasa.gov/citations/19850000193
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