Characterization of Sunn hemp fibers as a substitute for synthetic fibers in composites and various applications

Synthetic fibers in composites harm the environment raising the concern of exploring natural and sustainable materials. Sunn hemp fiber is an under-exploited lignocellulose fiber with a unique potential in various fields and an ideal substitute for synthetic. The current study uses Scanning electron microscopy (SEM), X-ray diffraction (XRD), Thermal gravimetric (TGA), and Fourier-transform infrared spectroscopy (FTIR) analysis as per standard practice to examine various morphological, physical, chemical, and antimicrobial properties present in Sunn hemp fiber. Morphological studies showed that the surface of Sunn hemp fiber is rough and filled with many fiber matrices that are condensed and packed together. Chemical analysis revealed that Sunn hemp fiber has cellulose (66.31 %), hemicellulose (18.60 %), lignin (14.90 %), pectin (4.75 %), ash (4.16 %), and wax (0.93 %). The Physical properties such as fiber length (38-42 cm), fiber density (1.22 g/cc), fiber diameter (20 & mu;m), moisture content (10.55 %), and moisture regain (11.53 %) of Sunn hemp fiber were analyzed. FTIR study revealed the presence of various functional groups present in Sunn hemp fibers. XRD results indicated that Sunn hemp fiber had a crystallinity index of 91 % and a crystal size of 18.07 nm, and thermo gravimetric analysis showed that fiber is stable till 220 celcius. The outcome of the antimicrobial study indicated that Sunn hemp fiber has potential activity against Candida albicans compared to standard drug. Overall properties of Sunn hemp fibers prove the possibility of using them in various fields and as a promising substitute to synthetic fibers in composites and other applications.

Automated summary

Sunn hemp fiber, an under-exploited lignocellulose fiber, shows unique potential as a substitute for synthetic fibers. Morphological analysis reveals rough surface and condensed fiber matrices. Chemical analysis indicates the presence of cellulose, hemicellulose, lignin, pectin, ash, and wax in Sunn hemp fiber. Physical properties such as fiber length, density, diameter, moisture content, and regain are analyzed. FTIR and XRD analysis reveal various functional groups and crystallinity of Sunn hemp fiber. Antimicrobial study shows potential activity against Candida albicans. Overall, Sunn hemp fibers have great potential in various fields as a substitute for synthetic fibers.