The current study explores the potential of cornhusk film (CHF) as reinforcement in epoxy matrix. The aim is to produce sustainable and economical polymer composite structures with enhanced composites’ properties. CHF/epoxy composites (CHFEC) are formed with hand layup technique by varying the CHF % by weight (3%, 6% and 9%) as well as by the angle of orientation (00, 450 and 900) with respect to its ridges along the direction of mould. The interphase between alkali treated CHF and epoxy matrix is charchterized by Scanning electron microscopy (SEM) as well as Dynamic mechanical analysis (DMA). The best results for the viscoelastic properties of the composites are obtained at 6wt% CHF. The damping factor of the composites decreased with increase in CHF% and there is positive shift in tan δ peak at 6wt% CHF loading and 450 angle of orientation. Storage modulus is increased by 75.47% and retained four times its value in rubbery zone compared to neat epoxy. The value of coefficient of effectiveness is lowered with addition of CHF. Cole- Cole plots show that composites retained the homogeneity with addition of CHF. The impact of different frequencies is also studied. The maximum moisture absorption of the composites is around 1% for 9wt% CHF loading. These results can be used to engineer CHF based epoxy laminate composite structures for inner lining of the doors of the auto mobiles, partitioning panels, decking and similar applications.
Harwinder Singh is working as Senior Research Fellow in the Department of Textile Technology, NIT Jalandhar, Punjab, India. His area of interest is lignocellulose based polymer composites with special emphasis on dynamic mechanical behavior of the composites. He worked as Assistant Professor at NIT Jalandhar. He is having industrial experience as well in production and quality control department in textile spinning division.
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