Topic
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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Patent•
06 Oct 1939
TL;DR: In this paper, a mass or sheet of matted vegetable fibers such as sisal strands surface coated or impregnated with a resin stable at atmospheric temperatures but adapted to be hardened quickly at elevated temperatures.
Abstract: Our invention relates to resin-treated, fl'' ous bodies and more particularly to a mass or sheet of matted vegetable fibers such as sisal strands surface coated or impregnated with a resin stable at atmospheric temperatures but adapted to be hardened quickly at elevated temperatures, and the...
6 citations
Patent•
19 Oct 2009
TL;DR: In this paper, a method for producing natural fiber and polypropylene biocomposites is provided to introduce natural single fiber into polyethylene through biaxial extrusion technology.
Abstract: PURPOSE: A method for producing natural fiber and polypropylene biocomposites is provided to introduce natural single fiber into polypropylene through biaxial extrusion technology. CONSTITUTION: A method for producing natural fiber and polypropylene biocomposites comprises the following steps of: reforming the surface of natural fiber such as kenaf, jute, coir, rice straw, sisal, flax, hemp, and banana using electron beam; mixing the surface-treated natural fiber and polypropylene composite in a biaxial extruder; and compression-molding or extruding the mixed composites in order to produce biocomposites.
6 citations
Dissertation•
18 Oct 2013
TL;DR: In this paper, the authors examined the mechanical properties of high density polyethylene (HDPE) composite reinforced with sisal fiber, at different percentages of coupling agent, and extended the study of matrix-fiber's interfacial shear strength.
Abstract: Natural fibers have been used recently as reinforcement of polymer-matrix based composites. The present thesis examines the mechanical properties of high density polyethylene (HDPE) composite reinforced with sisal fiber, at different percentages of coupling agent. It extends the study of matrix-fiber’s interfacial shear strength (IFSS). Firstly, a standard modelization by Kelly-Tyson method is done. Later on, a deeper study of sisal fiber at nanometric level is carried out using microscope techniques such as atomic force microscopy (AFM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) to sort out the real surface roughness of the sisal fiber inside the composite. Fiberglass has been used to compare with. According to the obtained results, a fractal roughness model is proposed for sisal fibers and extrapolated to all natural fibers, which do not have a circular cross section. Moreover, the fractal model is introduced in the standard KT model. Finally, the interfacial shear strength (IFSS) of the composite from the classical model is compared with the one from proposed model
6 citations
TL;DR: In this article, the authors modify sisal fibres by esterification with acyl chlorides to improve their stability and compatibility with the cementitious matrix in order to optimize the performance and durability of composites.
Abstract: Vegetable fibres have been shown to be promising as reinforcement in composites because they are abundant, renewable, and low cost. However, the fibre-matrix interaction can be damaged by dimensional variation of vegetable fibres, due to moisture variations. The alkaline medium of cementitious matrix is aggressive to natural fibres, compromising their durability. The aim of this study was to modify sisal fibres (Agave sisalana) by esterification with acyl chlorides to improve their stability and compatibility with the cementitious matrix in order to optimize the performance and durability of composites. The esterified fibres were characterized by moisture absorption, tensile tests, Thermogravimetric Analysis (TGA), and Scanning Electron Microscopy (SEM) and the composites by bending tests and SEM. The results showed that esterification changed both the morphology and physical properties of sisal fibres. The composite produced using esterified fibres with octanoyl chloride maintained the properties of 28 to 90 days of age, which represented an improvement in the fibre stability compared to natural fibre composite.
6 citations
Patent•
11 Dec 2013
TL;DR: In this article, a method for preparing an anode material of a lithium ion battery based on chemically-activated sisal carbon fiber is presented. But the method is limited to a single battery, and it is not suitable for a large number of batteries.
Abstract: The invention discloses a method for preparing an anode material of a lithium ion battery based on chemically-activated sisal carbon fiber. The method comprises the following steps: rubbing, washing and drying sisal fiber; soaking the sisal fiber for 24h by using a ZnCl2 solution with the mass percentage of 15-25% according to the ZnCl2 to sisal fiber impregnation ratio of (2-6):1, flushing the sisal fiber by using deionized water, and drying the sisal fiber at the temperature of 80-100 DEG C for 12-24h; and placing the sisal fiber into a vacuum tubular resistance furnace, carbonizing the sisal fiber at the atmosphere of nitrogen gas and the gas flow of 40ml/min for 0.5-1h, and naturally cooling the sisal fiber to obtain the black fiber-shaped sisal activated carbon fiber, wherein the carbonizing temperature ranges from 700 DEG C to 1000 DEG C, and the temperature rise speed is 1-10 DEG C/min. The lithium ion battery is assembled by taking a lithium tablet as a cathode material and the ground sisal activated carbon fiber as the anode material, a constant-current charging/discharging test is carried out, and the result shows that the sisal carbon fiber subjected to chemical modification treatment has better electrochemical property as comparison with untreated sisal carbon fiber and commercially available activated carbon.
6 citations