STM Journals Peer-reviewed research from Consortium e-Learning Network

3 publications

  • Published Subscription Original Research

    Multifunctional Lignin-Modified Jute/Bio-Epoxy Composites with MWCNT-Based Piezoresistive Self-Sensing for Sustainable Housing Applications

    By V. Ravi Raj, Deiveegan Ramasamy, Nishanth P, Ashokkumar P, Mary Zerlin. J, P. Uma, M M Nandakumar, A. Parvathi Priya, M. Saraswathi

    Abstract: This study develops a multifunctional natural-fibre-reinforced polymer composite based on alkali-treated jute fabric, bio-based epoxy, kraft lignin and a small amount of multiwalled carbon nanotubes (MWCNTs), with particular emphasis on polymer-matrix modification, fibre–matrix interfacial behaviour and intrinsic damage sensing. Kraft lignin was incorporated at 0, 2, 4 and 6 wt.% to examine its influence on polymer-chain mobility, interfacial morphology, thermal stability and mechanical response, while 0.5 wt.% MWCNTs was introduced …

    Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article

  • Published Subscription Original Research

    AI-Optimized Nano-Silica Reinforced PCM Composites for Predictive Solar-Thermal Energy Storage Networks

    By V. Ravi Raj, B. Chinna Ankanna, T. Maruthavanan, D.Raguraman, G.Janani, G.Nixon Samuel Vijayakumar, Sam Stanley S G, D.Murali, M.Buvana

    Abstract: This study presents an AI-optimized nano-silica reinforced polymer composite phase change material (PCM) for predictive solar-thermal energy storage networks. The proposed composite combines paraffin wax, high-density polyethylene (HDPE), and uniformly dispersed nano-silica particles to improve thermal conductivity, structural stability, leakage resistance, and long-term cycling performance. The composite was fabricated through melt blending and ultrasonication-assisted nanoparticle dispersion, followed by comprehensive morphological, chemical, thermal, and thermophysical characterization using scanning electron microscopy (SEM), …

    Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article

  • Published Subscription Original Research

    Graphene-Derived Reinforced Polymer Composites for Self-Healing and Durability Enhancement in Concrete Structures

    By V. Ravi Raj, Neethi Madhavan C.S, Bikash Chandra Saha, Manu Vijay, D. Sudha, S. Sivakumar, R. M. Karthikeyan, Shailendra Kumar Bohidar, Zakir Hussain

    Abstract: This study presents a matrix-centric polymer-composite repair binder: an epoxy–polyamide network reinforced with graphene derivatives (GO/rGO, 0.1–1.0 wt%). The polymer drives function via segmental mobility that closes microcracks, while 2D-filler topology densifies the interphase, improves load transfer, and enforces tortuous moisture pathways. Adhesion was high: pull-off (ASTM D4541) reached 13.5 MPa at 2.0 mm displacement; slant-shear (ASTM C882) reached 12.1 MPa at 2.8 mm, with greater deformation capacity (zero stress …

    Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 77–91 Read article

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