Browsing by Author "Das, S.N."

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    Compressive Characterization of Date Palm Leaf Fiber
    (Taylor and Francis Ltd., 2022) Nanda, J.; Das, S.N.; Mohapatra, A.
    In this present work, the surface of date palm leaf fiber has been modified by means of different chemical treatments. The thermal, morphological, mechanical, and water absorption characteristics of DPL fibers were investigated. The effect of the surface modifications of the DPL fibers was envisioned through the SEM micrographs, which shows the existence of voids and rough surfaces because of the elimination of lignin, wax, and pectin from the fiber. FTIR spectroscopy of DPL fibers was done, to check the effects of surface modifications on the fiber composition. XRD analysis confirms the improvement in crystallinity index of the surface-modified DPL fibers. The thermogravimetric analysis confirms augmentation in the thermal stability and tensile strength of the surface-modified fibers. The water absorptivity test conforms the reduction in the water absorption of the DPL fiber after surface modification. Furthermore, the DSC curve shows the temperature range for the moisture vaporization from fibers, fiber degradation, and the formation of char.key words-Natural fiber,Composite,Date palm leaf fiber,XRD,SEM,FTIR. © 2021 Taylor & Francis.
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    Study on Physical and Mechanical Behavior of Bauhinia Vahlii Fiber Filled Glass–Epoxy Hybrid Composites
    (Springer Science and Business Media Deutschland GmbH, 2023) Ray, R.; Das, S.N.; Mohapatra, A.
    Epoxy is well-suited for a number of industrial applications because of its versatility and its diversity. In many high-performance fields however, the overall use of epoxy limited its employment due to delamination, intrinsic fragility, low impact resistance and hardness to fractures. Epoxy's limitations can be overcome through inclusion and modification prior to industrial use. The present research describes the development of hybrid composites made of epoxy reinforced with glass fiber and filled with Bauhinia Vahlii fiber. Bauhinia Vahlii (BV) found to be most promising natural fiber for manufacturing composites for its superior mechanical as well as thermal properties. In this study, the incorporation of BV fiber on physical and mechanical behavior of glass–epoxy composites was investigated. Various composite compositions with three distinct natural BV fiber percentages (4, 8, 12%) were fabricated using a hand layup technique. The results showed that increasing the percentage of natural fiber concentration improves mechanical qualities, however at larger BV fiber loading, the strength reduces due to presence of more voids which signifies poor bonding. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.