Title :
Insulation characteristics of contaminated vacuum
Author :
Chalmers, I.D. ; Sankey, G.R. ; Mahmood, R.
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
Abstract :
Results are presented relating to the outgassed products from three common insulating polymers under vacuum at elevated temperatures up to 400 degrees C. Nylon-6, polymethylmethacrylate and polytetrafluoroethylene (PTFE) have been studied. PTFE is the most stable, while nylon-6 outgasses large quantities of water vapor. Preliminary results of a longer term investigation of the insulating characteristics of vacuum polluted by outgassing from polymeric materials are reported. The work has relevance to the development of high-voltage power systems in space.<>
Keywords :
insulation; materials testing; organic insulating materials; polymers; space research; 400 C; H/sub 2/O outgassing; PMMA; PTFE; contaminated vacuum; elevated temperatures; high-voltage power systems in space; insulating characteristics; insulating polymers under vacuum; longer term investigation; nylon-6; outgassed products; polymeric materials; polymethylmethacrylate; polytetrafluoroethylene; vacuum chamber; vacuum polluted by outgassing; water vapor; Dielectrics and electrical insulation; Electrodes; Gases; Plastic insulation; Polymers; Space shuttles; Space vehicles; Surface charging; Vacuum systems; Voltage;
Conference_Titel :
Electrical Insulation, 1988., Conference Record of the 1988 IEEE International Symposium on
Conference_Location :
Cambridge, MA, USA
DOI :
10.1109/ELINSL.1988.13878
