Performance evaluation of electron beam irradiated SIR-EPDM blends

Deepalaxmi, R.; Rajini, V.

doi:10.1109/tdei.2015.004615

Cited by 11 publications

(6 citation statements)

References 16 publications

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“…Superficial impedance is the opposition to leakage current on the insulator surface, whereas volume resistance is the opposition to leakage current throughout the whole insulator structure. Thus, greater superficial and volume resistances cause less leaking current as well as inferior conductivity of polymer composites [30]. Table 5.…”

Section: Electrical Propertiesmentioning

confidence: 99%

Effect of micro/nano-SiO$_{2}$ on mechanical, thermal, and electrical properties of silicone rubber, epoxy, and EPDM composites for outdoor electrical insulations

Khan¹,

Amin²,

Ali³

et al. 2017

Turk J Elec Eng & Comp Sci

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Abstract:In this paper the influence of micro-sized (3 µ m) and nano-sized (10 nm) silica (SiO 2) on mechanical, thermal, and electrical properties of silicon rubber (SiR), epoxy, and ethylene propylene diene monomer (EPDM) composites is presented. The micro-and nano-sized SiO 2 particle-filled SiR, epoxy, and EPDM composites were formulated with 20% microsilica and 5% nanosilica by weight respectively. Among these composites, SiR-SiO 2 amalgamation was performed by mixing using an ultrasonication procedure. Epoxy-SiO 2 was compounded in two steps, i.e. dispersion of fillers and mixing, whereas EPDM-SiO 2 compounding was performed with a two roll mill technique. With the addition of micro/nano-SiO 2 , the composites showed enhanced tensile strength of ∼ 2.7 MPa, improved hardness, and reduced elongation at break. Further incorporation of micro/nano-sized particles resulted in high thermal stability for SiRnano composites (SNCs) as compared to epoxy and EPDM composites. Compared to SiR and EPDM composites, epoxy-nano composites showed the highest value of dielectric strength, i.e. 38.8 kV/mm. Meanwhile, the volume and surface resistivity of SNCs were found higher as compared to other investigated samples. Promising properties of SiR nanocomposites among all the investigated samples suggest that their application is more suitable for utilization in outdoor electrical insulations.

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Section: Electrical Propertiesmentioning

confidence: 99%

Effect of micro/nano-SiO$_{2}$ on mechanical, thermal, and electrical properties of silicone rubber, epoxy, and EPDM composites for outdoor electrical insulations

Khan¹,

Amin²,

Ali³

et al. 2017

Turk J Elec Eng & Comp Sci

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“…They are supplied by M/S Joy Rubbers, India. The five different compositions of SiR-EPDM blends were prepared [1][2][3][4]9].…”

Section: Preparation Of Sir-epdm Blendsmentioning

confidence: 99%

“…The products processed with electron beam radiation, experience shorter exposure time, which could result in less oxidative effects on certain materials. It is essential to investigate the effect of electron beam irradiation upon the dielectric parameters of the five different compositions of SiR-EPDM blends [1][2][3][4]9]. Hence, the samples of SiR-EPDM were irradiated to 5, 15 and 25 Mrad dose levels by electron beam accelerator.…”

Section: Introductionmentioning

confidence: 99%

Electron Beam Irradiation Effects on Dielectric Parameters of SiR–EPDM Blends

Deepalaxmi¹,

Rajini²,

Vaithilingam³

2016

Radiation Effects in Materials

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The survival of an electrical system is mostly governed by the endurance limit of the dielectric material employed in it. The five different compositions of SiR EPDM blends were prepared. Electron beam radiation has been widely used in the cable manufacturing industries in order to increase the life of the cable. Hence, the five blends were irradiated to , and Mrad dose levels by electron beam accelerator. The dielectric parameters such as breakdown voltage BDV , dielectric strength DS , dielectric constant DC , and dissipation factor DF were measured as per ASTM/IEC standards. This chapter evaluates the effect of electron beam irradiation on dielectric parameters of SiR EPDM blends.

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“…1 Therefore, blends of ethylenepropylene-diene monomer (EPDM) and silicone rubber (SR) are still evaluated to increase the operating temperature of the insulating material without loss of dielectric performance, showing great potential for these applications. [2][3][4][5] SRs are widely known as electrical insulators, mainly due to their excellent electrical properties in aggressive environments and great heat resistance. However, they have a high cost, low mechanical properties, and low resistance to electrical tracking.…”

Section: Introductionmentioning

confidence: 99%

“…In the case of the electronic sector, several efforts have been made to develop new electrical insulating materials that can withstand higher working temperatures, given the high heat generation of the increasingly miniaturized electronic components 1 . Therefore, blends of ethylene‐propylene‐diene monomer (EPDM) and silicone rubber (SR) are still evaluated to increase the operating temperature of the insulating material without loss of dielectric performance, showing great potential for these applications 2–5 …”

Section: Introductionmentioning

confidence: 99%