Influence of Filler-Polymer Interface on Performance of Silicone Nanocomposites

Khanum, Khadija Kanwal; Sharma, Arathi Mohan; Aldawsari, Faisal; Angammana, Chitral J.; Jayaram, S.

doi:10.1109/tia.2019.2943445

Cited by 23 publications

(8 citation statements)

References 27 publications

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“…As a result of increased surface area and decreased particle size the Ugypsum obtained after 60 min ultrasonication (i.e., U-60 Gypsum) was pertained to be well dispersed within the EPDM matrix. 21 Table 4 represents the characteristic rheological results of the green composites made of EPDM and the filers namely different Ugypsum, MA-gypsum, and commercial carbon black (CB). From Table 4, it can be observed that the curing time (i.e., t90 as marked with blue dotted line) is minimum when the U-60 gypsum has been used as filler.…”

Section: Resultsmentioning

confidence: 99%

Time dependent ultrasonic treatment of waste gypsum toward improved mechanical performance of its EPDM composite

Kim

Sinha

Moon

et al. 2021

Journal of Elastomers & Plastics

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Herein, we have attempted to recycle the waste gypsum to be used as filler material in polymer composite. In this regard, aqueous dispersion of gypsum was ultrasonicated for varying time duration (10, 30, and 60 min), dried and used as fillers to develop corresponding EPDM composites. As per the mechanical performance (i.e., tensile strength and elongation at break), the gypsum obtained after ultrasonication for 60 min (i.e., U-60 gypsum) was found best performing filler material compared to the other ultrasonicated gypsum samples, commercial carbon black, and another surface treated gypsum sample. The decreased particle size and enhanced surface area of U-60 gypsum are supposed to be responsible for improving the mechanical property of the composite. Corresponding particle size, surface area, and morphology of all the gypsum samples were thoroughly examined to conclude the reason behind such observation.

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Section: Resultsmentioning

confidence: 99%

Time dependent ultrasonic treatment of waste gypsum toward improved mechanical performance of its EPDM composite

Kim

Sinha

Moon

et al. 2021

Journal of Elastomers & Plastics

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“…ILICONE rubber insulators are increasingly gaining acceptance for use in transmission and distribution systems because of their better dielectric performance, hydrophobic nature, vandal resistance, lightweight to strength ratio, good pollution performance, and good performance in harsh environments [1][2][3][4]. Recent research has shown that alumina added silicone rubber nanocomposites show improved erosion resistance and enhanced thermal stability [5,6]. The optimum addition of nano-silica to the silicone rubber showed better performance under accelerated multi-stress weathering conditions.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Surface Condition of Silicone Rubber Nanocomposite Due to Corona Aging Using AFM Imaging and LIBS Spectroscopy

Thangabalan

Neelmani

Vasa

et al. 2022

IEEE Trans. Dielect. Electr. Insul.

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Silicone rubber insulators undergo degradation when they are exposed to corona discharges. The present study explores the surface degradation behavior of silicone rubber alumina nanocomposites due to corona ageing using highfrequency AC voltage. The electric field distribution on the sample surface during corona ageing is simulated using COMSOL. The change in silicone rubber functional group is studied using Fourier transform infrared spectroscopy (FTIR) analysis. The influence of corona ageing time on the surface roughness recovery of silicone rubber nano alumina composites is studied using an atomic force microscope (AFM). The elemental distribution behavior and change in the emission spectra persistence time are analyzed during recovery period of corona-aged silicone rubber nanocomposites using Laser-Induced Breakdown Spectroscopy (LIBS) technique. The addition of alumina nanofiller to the silicone rubber improves the resistance to ageing due to corona discharge. Loss and recovery of hydrophobic property of silicone rubber due to corona aging were determined using static contact angle measurement. The results show a direct correlation between the contact angle and the surface roughness recovery characteristics. They indicate that the nanocomposite having a 5 wt% alumina content exhibits the highest resistance to corona discharge with least surface damage. Furthermore, fast recovery was observed in the first few hours after corona ageing, and most samples eventually regained their properties after about 8 hours of recovery time.

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“…Modification of polymers through the incorporation of fillers yields to multiphase systems, with unique micro and macrostructures that are responsible for their properties [16,17]. These composites generally have modified or enhanced mechanical properties and dimensional stability, better fire retardancy, controlled permeability and melt processability, low cost.…”

Section: Introductionmentioning

confidence: 99%

Attempts to Diminish the Drawbacks of Polylactic Acid Designed for 3D/4D Printing Technology-Fused Deposition Modeling

Dimonie¹,

Dragomir²,

Stoica³

2021

Mater. Plast.

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In order to improve thermal behavior and dimensional strability of polylactic acid (PLA) designed both for 3D and 4D printing technology-fused deposition modeling (FDM) using a scalable procedure, the polymer was melt compounded with additives which control the morphology by crystallization and/or reinforcing. Using the formulations which provide polylactic acid (PLA) improved thermo-mechanical properties and desired dimensional stability, the new materials were shaped, on a laboratory line, as filaments for printing technology. The selected compounds were than scaled up on a 50 kg/h compounding line into granules which prove to have good shapability as filaments for printing technology (1.85 +/- 0.05 mm diameter, required ovality, good appearance and smooth surface) and performed properly at 3D printing. The obtained results proved that functional properties of PLA can be improved by various methods so that, depending on the reached performances, the new material can be converted through printing technology into items for performance applications. The novelty of the article is related to the fact that it identifies a modifying solution for controlling the morphology of a type of PLA designed for 3D printing that already has an advanced crystallinity.

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Influence of Filler-Polymer Interface on Performance of Silicone Nanocomposites

Cited by 23 publications

References 27 publications

Time dependent ultrasonic treatment of waste gypsum toward improved mechanical performance of its EPDM composite

Time dependent ultrasonic treatment of waste gypsum toward improved mechanical performance of its EPDM composite

Understanding the Surface Condition of Silicone Rubber Nanocomposite Due to Corona Aging Using AFM Imaging and LIBS Spectroscopy

Attempts to Diminish the Drawbacks of Polylactic Acid Designed for 3D/4D Printing Technology-Fused Deposition Modeling

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