Effect of Filler Loading on Tracking and Erosion of Silicone Rubber Based Composites Under DC Voltage

2018 ◽  
pp. 73-83 ◽  
Author(s):  
Najwa Kamarudin ◽  
Jeefferie Abd Razak ◽  
Nurbahirah Norddin ◽  
Aminuddin Aman ◽  
Nazurah Nazir
Keyword(s):  
Silicone Rubber ◽  
Filler Loading ◽  
Dc Voltage

scholarly journals Effect of Filler Concentration on Tracking Resistance of ATH-Filled Silicone Rubber Nanocomposites

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2401 ◽  
Author(s):  
Youngtaek Jeon ◽  
Shin-Ki Hong ◽  
Myungchin Kim
Keyword(s):  
Leakage Current ◽  
Silicone Rubber ◽  
Thermo Gravimetric Analysis ◽  
Polymeric Materials ◽  
Filler Loading ◽  
Filler Concentration ◽  
Gravimetric Analysis ◽  
Surface Contact Angle ◽  
Current Characteristics ◽  
Surface Leakage

It is necessary for polymeric materials to have superior tracking resistance against various stress conditions for outdoor applications. In this study, the effect of nano-sized alumina tri-hydrate (ATH) particles on the tracking resistance of silicone rubber (SiR) is studied. Specimens with filler loadings of 1, 3, 5, 10, and 20 wt % are used for performance characterization. From the inclined plane test (IPT) results, apparent improvement in tracking resistance was achieved by mixing 3 wt % of nano-sized fillers, compared to unfilled specimens. ATH/SiR nanocomposites with 5 wt % loading showed comparable tracking performance to SiO2/SiR microcomposites with 20 wt % loading. For detailed analysis, measurements of surface contact angle (SCA) and surface leakage current, and thermo-gravimetric analysis (TGA) were performed. As the nano-ATH filler concentration increased, both thermal stability and leakage current characteristics were improved. Such results agreed with the tracking resistance performance by showing that thermal decomposition and surface charge transport is inhibited in ATH/SiR nanocomposites. Furthermore, performance improvement in nanocomposites was achieved, even at low filler loadings, compared to microcomposites. Meanwhile, the change in SCA was found to be rather limited, regardless of filler loading and filler size.

The Role of Filler Interface in Suppressing the Erosion of Silicone Rubber Under DC Voltage

2020 ◽  
Author(s):  
Alhaytham Y. Alqudsi ◽  
Refat Atef Ghunem ◽  
Eric David ◽  
Yazid Hadjadj
Keyword(s):  
Silicone Rubber ◽  
Dc Voltage

Fused Silica Filled Silicone Rubber Composites for Flexible Electronic Applications

2015 ◽  
Vol 830-831 ◽  
pp. 537-540 ◽  
Author(s):  
L.K. Namitha ◽  
M.T. Sebastian
Keyword(s):  
Silicone Rubber ◽  
Moisture Absorption ◽  
Volume Fraction ◽  
Coefficient Of Thermal Expansion ◽  
Filler Loading ◽  
Fused Silica ◽  
Rubber Matrix ◽  
Rubber Composites ◽  
Filling Fraction ◽  
Filler Volume Fraction

Silicone rubber composites filled with fused silica were prepared through sigma mixing followed by hot pressing. Filling fraction of fused silica in the silicone rubber matrix was varied from 0-0.51 volume fraction (Vf) and its effects on dielectric properties at different frequencies, thermal properties and moisture absorption were investigated. The results indicate that with the increase of filler volume fraction the relative permittivity increases and dielectric loss decreases. The coefficient of thermal expansion decreased and the moisture absorption increased marginallyas the filler loading increased.

An Improvement on Tracking Resistance of Silicone Rubber Filled with Micro-Wollastonite/Gehlenite Synthesized by Solid-State Reaction

2021 ◽  
Vol 902 ◽  
pp. 107-111
Author(s):  
Pattarabordee Khaigunha ◽  
Tanakorn Wongwuttanasatian
Keyword(s):  
Silicone Rubber ◽  
Room Temperature ◽  
Raw Materials ◽  
Filler Loading ◽  
Test Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Surface Tracking ◽  
Long Time ◽  
Scanning Electron

Enhancement of the room temperature vulcanization silicone rubber (RTV) tracking resistance with various filler loadings of synthesized wollastonite against electrical surface tracking was prepared. The X-ray diffraction (XRD), Scanning electron microscope (SEM), and X-ray fluorescent (XRF) techniques were involved in characterizing the synthesized substances. The test method IEC-60587 standard was employed to evaluate the surface tracking resistance. The results obtained from the XRF technique confirmed that the raw materials could be synthesized for wollastonite, while the XRD and SEM techniques revealed the formation of wollastonite (CaSiO3) associated with gehlenite (Ca2Al2SiO7). Moreover, it was found that the electrical surface tracking resistance of composite insulation takes a long time to track when the filler loading is increased more than 5 phr.

Effects of types of fillers and filler loading on the properties of silicone rubber composites

2011 ◽  
Vol 30 (13) ◽  
pp. 1087-1096 ◽  
Author(s):  
S.M. Kong ◽  
M. Mariatti ◽  
J.J.C. Busfield
Keyword(s):  
Silicone Rubber ◽  
Filler Loading ◽  
Rubber Composites
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