The intrinsic dielectric properties of Mediterranean bio-composites

Abstract The environment is seriously threatened by the growing use and disposal of technological products since most of them include non-biodegradable components. One approach to reduce environmental impact of electronic devices is to use biodegradable electronic components derived from natural fibers like protein and cellulose. Actually, a lot of research has been done on the viability of producing electronic components out of materials obtained from natural fibers. Their inclusion of several changeable functional categories is another benefit. Dielectric materials are one of the several necessary and commonplace parts of technical devices. A thorough study on the varieties of natural fibers used to make dielectric materials and their electrical properties would be beneficial in selecting the appropriate fibers and conditions for certain applications. To make full use of new natural composite materials in growing sectors, their electric properties have to be examined. However, along with polypropylene, four different kinds of natural lignocellulosic fibers will be discussed in this work: black pepper, sumac, pomegranate, and lemon – as case studies. In specific, over a frequency range of 1 KHz to 4 MH, the AC conductivity and dielectric constant of the produced samples were measured using the method of parallel plate capacitors. After that, given the performance of sisal fibers, a comparison between them and a sisal natural fiber (a non-Mediterranean variety) will be made.