Abstract
The manufacture of flexible devices is of immense interest due to their eco-friendliness, economic prospects and wide range of applications in biocompatible devices. Therefore, this paper reports the characterization and properties of chlorinated natural rubber (Cl-NR)/polyindole (PIN) blend with different contents of nickel oxide (NiO) nanoparticles. The formation of blend nanocomposites was analysed by FT-IR, UV spectroscopy, XRD, FE-SEM, DSC and TGA. The FT-IR and UV spectra proved the effective interfacial interaction between nanoparticles and the blend matrix, with a shift in UV peak intensity with the attachment of NiO at 433 cm−1. The XRD pattern revealed the regular arrangement of the blend matrix due to the presence of nanofiller, resulting in the semicrystalline structure of the composite system. The SEM micrographs revealed a homogeneous distribution of NiO in the blend matrix. The increased degradation temperature in the TGA demonstrated the enhanced thermal stability of the NiO-filled Cl-NR/PIN blend. DSC results showed that the glass transition temperature of the composite increased with NiO content in the blend matrix. The dielectric properties and AC electrical conductivity increased significantly with increasing temperatures, as well as with the addition of nanoparticles up to 5 mass % loading. The inclusion of NiO improved the tensile strength and hardness while reducing the elongation-at-break of nanocomposites. The blend nanocomposite with enhanced thermal stability, glass transition temperature, tensile strength, AC conductivity and dielectric properties enables them to be used in highly flexible electronic applications where traditional elastomeric materials fall short.
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Acknowledgements
The authors greatly acknowledge the financial assistance from KSCSTE, Government of Kerala, India (Order No.566/2017/KSCSTE).
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Funding was provided by Kerala State Council for Science, Technology and Environment, 566/2017 KSCSTE, M. T. Ramesan
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Parvathi, K., Verma, M. & Ramesan, M.T. Enhanced thermal, electrical and mechanical properties of nickel oxide reinforced chlorinated natural rubber/poly (indole) blend nanocomposites. J Therm Anal Calorim 148, 10139–10149 (2023). https://doi.org/10.1007/s10973-023-12358-z
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DOI: https://doi.org/10.1007/s10973-023-12358-z