SISAL

About: SISAL is a research topic. Over the lifetime, 1878 publications have been published within this topic receiving 55528 citations.

Sisal and fiber cutting apparatus

Abstract: This invention relates to improvements in sisal P and other fiber cutting machines, and more par- P ticularly to a machine which will employ a pair of longitudinal and parallel members having a I plurality of spaced intersecting and coacting cut- t ting teeth and knives, between which the fiber...

Preparation method of sisal fiber activated carbon, and application of the sisal fiber activated carbon in lithium ion capacitor

Abstract: The invention discloses a preparation method of sisal fiber activated carbon. The method includes the steps of: 1) placing sisal fibers in an acid solution to perform a hydrothermal reaction, and drying a product to obtain a powdery carbon precursor; 2) uniformly mixing the powdery carbon precursor with an activator, and thermal-treating the mixture in an argon atmosphere, and washing and drying the thermal-treated product to obtain the sisal fiber activated carbon. In the invention, the structure of the sisal fibers is fully utilized to obtain a multi-scale pore structure; the sisal fiber activated carbon not only has micro-pores being less than 2 nm, but also has meso-pores being 2-50 nm and macro-pores being larger than 100 nm, thereby improving electrochemical performance of the material. A lithium ion capacitor prepared by assembling the sisal fiber activated carbon can reach 110 Wh/kg in energy density and 5.7 kW/kg in power density.

Tcf bleached sisal market pulp: potential reinforcing fibre for commodity papers - part 1

Abstract: Sisal pulp has physical characteristics superior to softwood kraft pulp. Depending on the furnish components and paper quality requirements, sisal pulp can replace softwood kraft at a rate of up to 2.8:1. This offers many opportunities for sisal pulp. For example, sisal pulp may be used as a reinforcing fibre in high recycle content papers, or its use may permit basis weight reductions while maintaining product quality. Sisal pulp as a value added replacement to softwood kraft in commodity papers is considered a viable alternative market. Part 1 of this paper reviews the laboratory work to establish conditions for producing TCF bleached sisal pulp, and discusses the results of a pilot scale trial and tests on pulp samples which were distributed to paper companies for testing in various furnishes. Part 2 reviews a sisal estate plan to provide pulping fibre, tentative flowsheets for fibre preprocessing stations and a sisal market pulp mill using processes and equipment which are currently available on the market, and the estimated capital and manufacturing costs and economic analysis for a 50,000 metric ton per year sisal market pulp mill.

Basalt Fiber Hybridization Effects on High-Performance Sisal-Reinforced Biocomposites

Abstract: The increasing attention given to environmental protection, largely through specific regulations on environmental impact and the recycling of materials, has led to a considerable interest of researchers in biocomposites, materials consisting of bio-based or green polymer matrixes reinforced by natural fibers. Among the various reinforcing natural fibers, sisal fibers are particularly promising for their good mechanical properties, low specific weight and wide availability on the current market. As proven in literature by various authors, the hybridization of biocomposites by synthetical fibers or different natural fibers can lead to an interesting improvement of the mechanical properties or, in turn, of the strength against environmental agents. Consequently, this can lead to a significant enlargement of their practical applications, in particular from quite common non-structural applications (dashboards, fillings, soundproofing, etc.) towards semi-structural (panels, etc.) and structural applications (structural elements of civil construction and/or machine components). Hybridizations with natural fibers or with ecofriendly basalt fibers are the most interesting ones, since they permit the improvement of the biocomposite’s performance without an appreciable increment on environmental impact, as occurs instead for synthetic fiber hybridizations that are also widely proposed in the literature. In order to further increase the mechanical performance and, above all, to reduce the aging effects on high-performance sisal-reinforced biocomposites due to environmental agents, the hybridization of such biocomposites with basalt fibers are studied with tensile, compression and delamination tests performed by varying the exposition to environmental agents. In brief, the experimental analysis has shown that hybridization can lead to further enhancements of mechanical performance (strength and stiffness) that increase with basalt volume fraction and can lead to appreciable reductions in the aging effects on mechanical performance by simple hybridization of the surface laminae. Therefore, such a hybridization can be advantageously used in all practical outdoor applications in which high-performance sisal biocomposites can be exposed to significant environmental agents (temperature, humidity, UV).