Dielectric Properties of Pineapple Leaf Fiber Reinforced Epoxy Based Composites

Abstract

The present study investigates the dielectric constant, loss factor and dissipation factor of pineapple leaf fiber reinforced epoxy composites as in function of fiber loading, fiber surface modification and frequency. The dielectric properties of the composites were measured using HP 16451 as the dielectric test fixture and was carried out on pineapple leaf fiber reinforced epoxy composites with varying fiber loading (5wt%, 10wt%, 15wt%, and 20wt%) and fiber subjected to sodium hydroxide treatment. It was observed that the dielectric properties of these composites were influenced by fiber loading and sodium hydroxide treatment. The dielectric constant increases with increase of fiber concentration and decrease with the increase of frequency in the case of all composites. It was also observed that the increase of dielectric constant with fiber loading was more significant at low frequency. Due to a reduction in the hydrophilic nature of pineapple leaf fiber brought about by sodium hydroxide treatment the dielectric properties of the composites was less than that of the untreated ones.

Factors that affects the dielectric properties of natural fibre reinforced hybrid biocomposite

“…It is noticed that the dissipation factor and loss factor increase with fibre loading but decreases with increased frequency. Journal reported that dissipation and loss factor of PALF/Epoxy composite decreases at all frequency but increase with increased in fibre content [16]. Figure 3 display the effect of fibre content of PALF and jute on dissipation factor of hybrid composite.…”

“…Besides that, the dielectric constant of kenaf fibre increases as the temperature increase with constant frequency of 100Hz. Moreover, the dielectric constant of kenaf fibre with highest fibre loading is lower compared to jute, palf [16] and bamboo fibre [24]. Dissipation factor of jute/bamboo hybrid composite decreases as the frequency increase and fibre content decrease [24].…”

“…Electrical parameter that can be measured from natural fibre reinforced hybrid composite are dielectric constant, volume resistivity, thermal conductivity, breakdown voltage, water absorption rate, dissipation factor and loss factor. These electrical properties can be influenced by the percentage of fibre content, alkali treatment, fibre length, fibre orientation and frequency [16]. Research on factors that affects the electrical properties of the composite has been reported by a small group of researchers.…”

Fabrication of Cellulose Powder Dielectric Composite Material using Pineapple Leaves Fiber

“…Among these, pineapple leaves, often discarded as waste after harvesting the fruit, boast promising chemical composition and mechanical properties that can be harnessed to produce valuable natural fibers [7]. Transforming pineapple leaves into dielectric material for electrical appliances is a sustainable approach that adds value to pineapple waste [7,[11][12][13][14][15].…”

“…Utilizing cellulose derived from pineapple waste as a filler in composite materials opens up possibilities for applications in electronics devices such as capacitors, insulators, printed circuit boards (PCBs), sensors, and diverse types of antennas [17][18][19][20]. This approach not only allows for the full utilization of natural resources but also contributes to the development of novel dielectric composite materials from pineapple waste [11]. A composite material is defined by the incorporation of diverse elements to achieve specific characteristics and functionalities.…”