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Influence of Modified Nanosilica on the Performance of NR/EPDM Blends: Cure Characteristics, Mechanical Properties and Swelling Resistance

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Abstract

In this study, the influence of modified nanosilica on the curing, mechanical, and swelling resistance properties of natural rubber and ethylene-propylene-diene monomer blends (NR/EPDM; 70/30 phr/phr) was examined. The composites were developed using the melt compounding method, with nanosilica derived from rice husk ash serving as the reinforcing nanofiller in NR/EPDM composites. Two modifiers were employed in this study: a 2:1 ratio of TESPT (bis(3-triethoxysilylpropyl)tetrasulfide) to TWEEN-20 (polyoxyethylene (20) sorbitan monolaurate) (Modifier 1), and thioctic acid (TA) (Modifier 2). In comparison to pure NR/EPDM blends, the inclusion of TA-modified nanosilica significantly enhanced tensile and tear strength by up to 76% and 48%, respectively. Moreover, NR/EPDM nanocomposites filled with TA-modified nanosilica exhibited reduced swelling at a given loading when compared to their counterparts filled with TESPT/TWEEN-20-modified nanosilica.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Velammal Engineering College, Ambattur Red Hills Rd, Velammal Nagar, Surapet, Chennai, Tamil Nadu, 600066, India

    S. Pradeep Kumar

  2. Department of Mechanical Engineering, KCG College of Technology, KCG College Rd, Karapakkam, Chennai, Tamil Nadu, 600097, India

    G. Prabhakaran

  3. Department of Mechanical Engineering, S.A. Engineering College, Poonamallee, Avadi Road Veeraraghavapuram, Thiruverkadu, Tamil Nadu, 600077, India

    S. Vishvanathperumal

Authors
  1. S. Pradeep Kumar
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  2. G. Prabhakaran
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  3. S. Vishvanathperumal
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Contributions

SPK - Experimental work and prepared all figures was done. GP - Supervise the overall work and removal of plagiarism from the main manuscript. SV - Wrote the main manuscript text. And then all authors reviewed the main manuscript.

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Correspondence to S. Pradeep Kumar.

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This study was approved by the Velammal Engineering College, SRM Institute of Science and Technology, and SA Engineering College, Chennai, Tamilnadu, India.

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Kumar, S.P., Prabhakaran, G. & Vishvanathperumal, S. Influence of Modified Nanosilica on the Performance of NR/EPDM Blends: Cure Characteristics, Mechanical Properties and Swelling Resistance. J Inorg Organomet Polym (2024). https://doi.org/10.1007/s10904-023-02985-2

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