Abstract
Halloysite nanotubes (HNTs) were incorporated into an EPDM/SBR rubber/styrene-butadiene rubber (SBR) composite by melt blending of HNTs into the EPDM/SBR blend. The mechanical properties, abrasion and swelling resistance of HNTs ranging from 2 parts per hundred rubber (phr) to 10 parts per hundred rubber (phr) were investigated in EPDM/SBR base rubber. Tensile strength, 100% modulus (modulus at 100% elongation), elongation at break and tear strength were evaluated at ambient temperature using electric universal tensile testing equipment in accordance with ASTM D-412. Hardness, abrasion and swelling resistance were determined using Shore-A Durometer, DIN abrader and immersion techniques, respectively. The results show that increasing HNT content increased tensile strength, tear strength, hardness (stiffness), and crosslink density. The surface morphology of tensile-fractured material was studied using field-emission scanning electron microscopy (FE-SEM). According to FE-SEM results, the most roughness of the surface was seen at HNTs filled rubber nano-composites.
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Acknowledgements
The authors thank Dr. G. Anand, Department of Mechanical Engineering, MVJ College of Engineering, Bangalore, India for her continuous support and encouragement throughout the work. We are grateful to MAEON Laboratories Section, Chennai for her help in preparing the materials and Technical Support for providing the set-up of all testing.
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Ganeche, P.S., Balasubramanian, P. & Vishvanathperumal, S. Halloysite Nanotubes (HNTs)-Filled Ethylene-Propylene-Diene Monomer/Styrene-Butadiene Rubber (EPDM/SBR) Composites: Mechanical, Swelling, and Morphological Properties. Silicon 14, 6611–6620 (2022). https://doi.org/10.1007/s12633-021-01410-y
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DOI: https://doi.org/10.1007/s12633-021-01410-y