The anomalous effect of moisture on the electrical properties of petroleum oil

1960 ◽  
Vol 6 (63) ◽  
pp. 175-177
Author(s):  
F.B. Waddington ◽  
J. Heighes
1991 ◽  
Vol 227 ◽  
Author(s):  
Rajeevi Subramanian ◽  
Michael T. Pottiger ◽  
Jacqueline H. Morris ◽  
Joseph P. Curilla

ABSTRACTMoisture absorption and its effect on electrical properties were measured for several polyimides. A Quartz Crystal Microbalance (QCM) was used to investigate the moisture absorption in BPDA/PPD, PMDA/ODA, and BTDA//ODA/MPD polyimides. The steady-state moisture uptake in polyimides as a function of relative humidity (RH) was determined by exposing film samples to successively higher RH values ranging from 10 to 85% at 25°C. The isothermal moisture absorption as a function of percent RH was found to be nearly linear for all of the polyimides studied. The effect of moisture on the electrical properties of a BPDA/PPD polyimide was also investigated. The relative dielectric constant at 25 °C was found to be a linear function of the moisture absorbed.


1976 ◽  
Vol 123 (10) ◽  
pp. 1451-1455 ◽  
Author(s):  
G. B. Reinish ◽  
A. S. Nowick

2014 ◽  
Vol 114 ◽  
pp. 12-16 ◽  
Author(s):  
Yi-Lung Cheng ◽  
Ka-Wai Leon ◽  
Jun-Fu Huang ◽  
Wei-Yuan Chang ◽  
Yu-Min Chang ◽  
...  

1995 ◽  
Vol 115 (6) ◽  
pp. 499-504 ◽  
Author(s):  
Yuji Muramoto ◽  
Yukio Mizuno ◽  
Masayuki Nagao ◽  
Masamitsu Kosaki

1992 ◽  
Vol 134 (1) ◽  
pp. 229-234 ◽  
Author(s):  
Paulo António Ribeiro ◽  
M. Raposo ◽  
J. N. Marat-mendes

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