scholarly journals Dielectric Properties of All-Organic Coatings: Comparison of PEDOT and PANI in Epoxy Matrices

2020 ◽  
Vol 4 (1) ◽  
pp. 26
Author(s):  
Vanesa Yuste-Sanchez ◽  
Francisco Gonzalez-Gonzalez ◽  
Mario Hoyos ◽  
Miguel A. López Manchado ◽  
Raquel Verdejo
Keyword(s):  
Epoxy Resin ◽  
Smart Grids ◽  
Conductive Polymer ◽  
Organic Coatings ◽  
Electrical Insulation ◽  
High Dielectric Permittivity ◽  
High Dielectric ◽  
Electrical Insulation Materials ◽  
Epoxy Matrices ◽  
Pure Resin

The technological demands imposed on dielectrics and electrical insulation materials are being increasing with the transition from traditional to smart grids. Epoxy resin/conductive polymer (CP) blends with high dielectric permittivity have been prepared by means of a straightforward methodology. Poly(3,4-ethylenedioxythiophene) (PEDOT) and polyaniline (PANI), doped with p-tosylate and ammonium peroxide sulfate (APS), respectively, were synthesized and blended with an epoxy matrix. The addition of 3 wt % of PEDOT and PANI results in permittivity values of 68.9 and 9.5, respectively at 0.1 Hz—1300 and 111 times higher than pure resin. Hence, PEDOT is more effective than PANI at improving the permittivity of the epoxy resin. Moreover, the material retains the electrical insulation of the resin and exhibits a slight increase in thermal conductivity.

Improvement on Surface Tracking and Tensile Stress of Insulator via the Used of Aluminium Oxide Filler

2016 ◽  
Vol 705 ◽  
pp. 98-102
Author(s):  
Nutsopin Nilbunpot ◽  
Amnart Suksri
Keyword(s):  
Tensile Stress ◽  
Transmission Line ◽  
Epoxy Resin ◽  
Mechanical Stress ◽  
Electrical Power ◽  
Mechanical Effect ◽  
Electrical Insulation ◽  
Insulator Surface ◽  
Surface Tracking ◽  
Tracking Time

Mechanical effect is one of many causes that influence surface tracking activity of electrical insulation. Mechanical stress is also a main cause that deteriorates the property of cable spacer used in delivered electrical power through transmission line. This paper investigates on surface tracking and tensile stress performance of composite insulator material in order to improve insulator property. Specimen were made from epoxy resin and additive fillers tested under the condition of contamination. The filler ratio were used from 0 to 50% with incremental of 10%.The result showed that fillers have significance improvement on inhibition of the degradation on insulators when the concentration of filler is increased, the tracking time has increased until 40% of filler. Moreover, the improvement on the tensile stress is also increased. It is clearly showed that addition of filler not only improve on the time for surface tracking on insulator surface but also helps improve on mechanical stress property of insulators as well.

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