Nanofilled silicone dielectrics prepared with surfactant for outdoor insulation applications

Ramirez, I.; Cherney, E.A.; Jayaram, S.; Gauthier, Mario

doi:10.1109/t-dei.2008.4446755

Cited by 57 publications

(32 citation statements)

References 20 publications

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“…The samples were prepared by a method described in a previous paper and briefly described here for clarity [3]. The samples were prepared using fillers either as supplied or calcinated at a temperature of 1173 K, and various amounts of Triton TM X-100 surfactant in RTV 615 silicone rubber.…”

Section: Sample Preparationmentioning

confidence: 99%

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Performance of silicone rubber nanocomposites in salt-fog, inclined plane, and laser ablation tests

Ramirez

Jarayam

Cherney

2010

IEEE Trans. Dielect. Electr. Insul.

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This paper explores how the addition of inorganic nanofiller and microfiller to silicone rubber can impart resistance to erosion for overhead insulation applications. Various micro-nano composites were prepared for this study, namely microfiller, nanofiller, and the combination of microfiller and nanofiller with a commercial surfactant to improve the dispersion of the nanofiller. The effect of the surfactant on the surface wettability of the composites was analyzed with contact angle measurements. Salt-fog, inclined plane and laser ablation tests were conducted to evaluate the erosion resistance of the micro-nano filled composites. The results in all three tests showed that the combination of microfiller and nanofiller with surfactant resulted in composites with improved erosion resistance to dry band arcing, with the exception of the case where calcinated filler was used in the formulation.

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Section: Sample Preparationmentioning

confidence: 99%

“…Full scale trials were molded by Imai et al [1] but the main problem in the use of nanofillers has been the dispersion of the filler [2]. In a previous publication [3], electron microscopy analysis showed that surfactant was successful in obtaining improved dispersion of nanofiller-particles.…”

Section: Introductionmentioning

confidence: 99%

Performance of silicone rubber nanocomposites in salt-fog, inclined plane, and laser ablation tests

Ramirez

Jarayam

Cherney

2010

IEEE Trans. Dielect. Electr. Insul.

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“…Except of these standard test methods, some researchers applied laser instead of arc to study performance of different materials [8,9]. To improve arc resistance of polymer insulation, various inorganic fillers are doped in polymer matrix [10][11][12][13][14][15][16][17][18][19][20][21]. In 1990s, Japanese scholar found that Alumina trihydrate (ATH) could improve the tracking resistance of silicone rubber [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…So far ATH filled silicone rubber has been widely used at home and aboard. Some other researchers took the advantage of nanoparticle to enhance the arc resistance property of silicone rubber [13][14][15][16][17][18]. The arc resistance property of liquid silicone rubber, ATH filled high temperature vulcanized silicone rubber (HTV-SIR) and HTV-SIR were investigated by J. M. Seifer et al [19].…”

Section: Introductionmentioning

confidence: 99%

The arc resistance of binary filled silicone rubber

Jing¹,

Chen²,

Chang³

2013

2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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To research the influence of inorganic fillers on arc resistance of silicone rubber, alumina trihydrate (Al(OH) 3 , ATH), boron nitride (BN) were chosen as fillers, unary filled and binary filled silicone rubber (SIR) specimens were prepared, the dispersion of organic fillers in SIR were characterized by scanning electron microscope (SEM), arc resistance of each specimen were investigated by high voltage low current arc test, and thermal degradation property was tested by thermogravimetric analysis. The results indicate that ATH unary filled SIR specimens show good performance during the arc test, but decompose seriously and loss much weight. Narrow conducting path forms rapidly when BN filled SIR specimens are exposed to arc discharge. The arc resistance property of ATH and BN binary filled SIR is improved as it takes the advantage of both ATH and BN.

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“…However, the selection of chemical additives is a complicated process and quantity of chemical additives is a critical parameter in the dispersion. The desired nanocomposites depend on how well the additives are controlled [9][10][11][12]. Furthermore, normally one special chemical additive only works for one type of nanofillers [13].…”

Section: Introductionmentioning

confidence: 99%

Use of electrospinning to disperse nanosilica into silicone rubber

Bian

Jayaram

Cherney

2010

2010 Annual Report Conference on Electrical Insulation and Dielectic Phenomena

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Nanomaterials have attracted considerable attention due to their unique physicochemical properties. However, agglomerations of nanofillers in nanocomposites have hindered the potential improvements to their properties. A novel technique of infusing nanosilica into silicone rubber with reduced agglomeration is reported in this paper. The technique involves electrospinning of silicone fibers, embedded with nanosilica, and incorporating the fibers into silicone rubber. Compared to high shear mechanical mixing, a larger volume fraction of nanosilica can be dispersed more uniformly into silicone rubber by electrospinning. The morphology of nanosilica composites was characterized by means of scanning electron microscopy and thermal heating tests using an infrared laser suggest an improvement to the thermal conductivity. These results suggest that electrospinning can tear apart particle agglomerations thereby improving the dispersion of nanoparticles into silicone rubber matrix.

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Nanofilled silicone dielectrics prepared with surfactant for outdoor insulation applications

Cited by 57 publications

References 20 publications

Performance of silicone rubber nanocomposites in salt-fog, inclined plane, and laser ablation tests

Performance of silicone rubber nanocomposites in salt-fog, inclined plane, and laser ablation tests

The arc resistance of binary filled silicone rubber

Use of electrospinning to disperse nanosilica into silicone rubber

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