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Development of cyclophosphazene and rice husk ash incorporated epoxy composites for high performance applications

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Abstract

An amine-terminated cyclophosphazene and 3-aminopropyltrimethoxysilane-functionalized rice husk ash incorporated halogen-free flame-retardant epoxy composites (ATCP/FRHA/Ep) were developed and their thermal, dielectric, hydrophobic and flame-retardant properties were analysed. The cone calorimeter and contact angle results confirm that the ATCP and FRHA materials impart good flame-retardant and water resistance properties to the resultant epoxy composites. A significant improvement in the flame-retardant, glass transition temperature, char yield and dielectric properties was noticed, due to the synergetic effects imparted from the unique combination of phosphorous and nitrogen in the phosphazene ring as well as silica present in the rice husk ash. Obviously, this ATCP/FRHA/Ep flame-retardant system paves a new possibility for high performance non-halogen flame-retardant polymeric materials. Hence, they have become potential candidates for fire-resistant applications in electronic and microelectronics as a sustainable non-flammable polymeric material.

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Acknowledgments

The authors would like to thank DST/Nanomission, New Delhi, India, for financial support to carry out this work and the establishment of Nanotech Research Lab through Grant No. SR/NM/NS-05/2011(G). The authors thank Mr. Ashok, Research Scholar, Polymer Engineering and Colloids Science Lab, IIT Madras, Miss. Priyanka Pandey, Research Scholar, CIPET and Mr.Ezhumalai, Technical assistant, CIF, Pondicherry University, for their support in carrying out the characterization of samples.

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  1. Nanotech Research Lab, Department of Chemistry, University College of Engineering-Villupuram (A Constituent College of Anna University, Chennai), Kakuppam, Villupuram, 605 103, Tamil Nadu, India

    Krishnamoorthy Krishnadevi & Vaithilingam Selvaraj

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  2. Vaithilingam Selvaraj
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Krishnadevi, K., Selvaraj, V. Development of cyclophosphazene and rice husk ash incorporated epoxy composites for high performance applications. Polym. Bull. 74, 1791–1815 (2017). https://doi.org/10.1007/s00289-016-1805-1

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