ELECTRIC PROPERTIES OF SIZED GLASS FABRIC,
Abstract
The specific resistance and dielectric loss of glass fabric E 0.1 finished with vinyltrichlorosilane, GVS-9 or gammaaminopropyltriethoxysilane were experimentally studied to determine the effect of sizing, temperature, storage and humidity on electric properties. Comparisons were made with thermotreated glass fabric containing 0.15 percent residual polyvinyl acetate textile lubricant, and with a glass fabric of the Gusev glass fabric plant lubricated with polyvinyl acetate emulsion. Electric properties were measured on 35 x 35 mm specimens using a sealed aluminum cell and electrodes of identical surface area. The surface resistance of the fabrics, was 11-12 for the fabric without sizing, 13-13.5, 12-13, and 12-12.7 for fabrics finished with vinyltrichlorosilane, GVS-9 and gamma-aminopropyltriethoxysilane, respectively, and 9-9.5 for the lubricated fabric of the Gusev plant. Thus, sizing did not markedly increase the surface resistance of the thermotreated fabric, but lubrication with polyvinyl acetate emulsion decreased the surface resistance. The temperature coefficient was shown to be analogous to the dependence of solid glass on reciprocal absolute temperature. Long storage under conditions of normal room humidity did not affect the specific resistance of the studied fabrics. Under storage at 98 percent humidity, the resistance decreased rapidly during the first month and remained constant after this decrease.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 19, 1969
- Accession Number
- AD0697554
Entities
People
- K. V. Ablyakimova
Organizations
- National Air and Space Intelligence Center