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SISAL
About: SISAL is a research topic. Over the lifetime, 1878 publications have been published within this topic receiving 55528 citations.
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TL;DR: This study investigated the effect of the liquid/solid ratio (%), time (min), and temperature (°C) on the yield of the pectin obtained from sisal waste by attractive environmentally friendly process.
89 citations
TL;DR: In this paper, the fiber length and aspect ratio distributions in polypropylene composites were characterized using high resolution optical microscopy coupled with image analysis software and statistical methods, and the results showed that the presence and amount of elementary fibres, fibre bundles and particles were found.
Abstract: Using high resolution optical microscopy coupled with image analysis software and statistical methods, fibre length and aspect ratio distributions in polypropylene composites were characterized. Three types of fibres, flax, sisal and wheat straw, were studied. Number and surface weighted distributions were used to demonstrate the presence and amount of elementary fibres, fibre bundles and particles. A large number of small particles that are usually not taken into account were found. The obtained fibre length and aspect ratio distributions were successfully fitted by a two-parameter Weibull model. No significant effect of fibre concentration on the length and aspect ratio distributions was detected for 20% and 40% flax-based composite. Fibre type was found to be a very important parameter influencing size and shape distributions: flax is broken into long elementary fibres, sisal-based composite contains non-dispatched bundles and elementary fibres and wheat straw-based composite has bundles and large and small particles.
89 citations
TL;DR: In this article, natural rubber was reinforced with sisal and oil palm fibers and the dielectric properties of the composite were evaluated as a function of fiber loading, frequency and chemical modification of fibers.
Abstract: Natural rubber was reinforced with sisal and oil palm fibers. Biocomposites were prepared by varying the weight fraction of the fibers. The dielectric properties such as dielectric constant, volume resisitivity and dielectric loss factor of the biocomposites were evaluated as a function of fiber loading, frequency and chemical modification of fibers. The dielectric constant values were found to be higher for fiber reinforced system than the gum due to polarization exerted by the incorporation of lignocellulosic fibers. Chemical modification of fibers resulted in decrease of dielectric constant values and volume resisitivity values. The volume resisitivity of the composites was found to decrease with fiber loading due to increase of hydrophilicity imparted by the lignocellulosic fibers. The dissipation factor was found to increase with fiber content.
87 citations
TL;DR: In this article, sisal-derived activated carbon fibers (SC) are obtained through a simple and convenient method using sisal, a natural biomass material, as a precursor, and the SC-750 has a high specific surface area (SBET: 2289 m2 g-1) and an optimized pore size distribution with a total pore volume of 1.23 cm3 g−1.
Abstract: The use of biomass porous carbon materials for energy storage has attracted tremendous attention in current research and has great applications in supercapacitors, lithium batteries, and fuel cells. In this work, sisal-derived activated carbon fibers (SC) are obtained through a simple and convenient method using sisal, a natural biomass material, as a precursor. SC-750 has a high specific surface area (SBET: 2289 m2 g–1) and an optimized pore size distribution with a total pore volume of 1.23 cm3 g–1. For supercapacitors, the obtained SC-750 exhibits excellent specific capacitance and cycle stability. The specific capacitance value is 415 F g–1 at 0.5 A g–1, and SC-750 shows a 93% capacitance retention after a long cycle (10,000 cycles) at 10 A g–1. In addition, the SC-750-based symmetric supercapacitor exhibits a high energy density of 11.9 Wh kg–1 in 6 M KOH electrolyte. Therefore, the results of this work demonstrate that sisal-derived activated carbon fiber has a great application value in supercapaci...
87 citations
TL;DR: In this article, the use of natural fibers as reinforcement in polymeric composites for technical applications has been a research subject of scientists during the last decade, motivated by potential advantages of weight saving, lower raw material price, and ecological advantages of using green resources which are renewable and biodegradable.
87 citations