Journal
MATERIALS RESEARCH EXPRESS
Volume 10, Issue 7, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/2053-1591/ace29c
Keywords
cryptostegia grandiflora fiber; chemical treatment; fiber characterization; morphological study; thermal stability
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The increasing global need for sustainability in product development has led to the exploration of natural fibers as a suitable reinforcement in polymer matrixes. In this study, a novel fiber reinforcement was extracted from the stem of the Cryptostegia grandiflora plant and chemically treated. The treated fibers showed improved properties, indicating their potential as a better reinforcement element in polymers. The chemically treated Cryptostegia grandiflora fibers can be used to make composites for structural applications.
The increasing global need to achieve sustainability in product development demands the use of biodegradable materials from renewable resources in many engineering applications. Accordingly, various natural fibers were explored as suitable reinforcement in polymer matrixes due to their low density and biodegradability. Hence, in this present work, a novel fiber reinforcement was extracted from the stem of the Cryptostegia grandiflora (CG) plant through a retting process and manual intervention. The extracted Cryptostegia grandiflora fibers (CGFs) were chemically treated using NaOH and silane. Various properties like crystal structure, chemical composition, surface morphology, and thermal degradation were studied using x-ray diffraction (XRD, Fourier transform infrared spectroscopy (FTIR) Scanning electron Microscopy (SEM) and Thermogravimetric analysis (TGA). The increasing cellulose content and the removal of hemicellulose after the chemical treatment indicate the potential for this CG fiber as a better reinforcement element in polymers. The increasing trend of tensile strength was observed for the CG fiber in the following order: silane > NaOH > untreated conditions. Two-stage thermal degradation was observed in all the cases where the maximum thermal degradation was found at the silane-treated CG fibers. Based on their performance, the chemically treated CG fibres can be made into composites and used for structural applications.
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