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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10 citations
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TL;DR: In this paper, the influence of degradation caused by UV rays, heat and moisture on the mechanical behavior of vegetal natural fibers used in geotextiles, including sisal, coir and banana fibers, was studied.
Abstract: Fibrous structures based on natural fibers have gained a key space when it is required to perform functions like separation, drainage, filtration, protection and soil reinforcement. The use of natural fibers turns engineering work more sustainable, since they are renewable, biodegradable, energy efficient and non-toxic raw materials. In this work, the influence of degradation caused by UV rays, heat and moisture on the mechanical behavior of vegetal natural fibers used in geotextiles, including sisal, coir and banana fibers, was studied. Natural fibers have been subjected to accelerate aging agents using QUV equipment and to real conditions, in contact with soil over a 3 months period. Samples were removed every 15 days and their mechanical behaviour evaluated under tensile. Moreover, the morphological modifications in the fibers structure have been also analyzed using SEM. The results show a significant degradation over the first 15 days for all types of fibers used. Sisal and banana fibers subjected to degradation in soil, present higher tensile strength loss over time than fibers subjected to accelerate aging tests in QUV. For geotextiles design, important remarks from the results can be obtained including: banana fibers are quite degraded by aging and soil conditions making them difficult to be applied in geotechnical engineering; sisal and coir fibers present high potential to perform various functions in contact with soil.
10 citations
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28 Jan 2004
TL;DR: In this paper, the sisal hemp fiber is used as fiber raw material, and the nonwoven fabric of thermoplastic resin PP, film, powder material and its fiber as resin base body, and adopts the following steps: pretreating sisal Hemp fiber and making it into fiber felt, hot-pressing and forming, selecting and using a certain number of fiber felts, delaminating and sand wiching pp non-oven fabric or film, under the condition of a certain temp.
Abstract: The present invention adopts the sisal hemp fiber as fiber raw material, and uses the nonwoven fabric of thermoplastic resin PP, film, powder material and its fiber as resin base body, and adopts thefollowing steps: pretreating sisal hemp fiber and making it into fiber felt, hot-pressing and forming, selecting and using a certain number of fiber felts, delaminating and sand wiching pp nonwoven fabric or film, under the condition of a certain temp. and pressure hot-pressing and forming or mixing PP fiber (PP powder) directly with sisal hemp fibre, making them into fiber felt and then hot-pressing and forming so as to obtain the invented sisal hemp fiber reinforced polypropylene composite material.
10 citations
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TL;DR: In this article, an attempt to convert natural sisal fiber into low cost carbon fibrous materials was made and the pretreatment, pyrolysis and carbonization processes of raw sisal fibre as well as structure and properties of the resultant product were investigated.
Abstract: An attempt to convert natural sisal fiber into low cost carbon fibrous materials was made. The pretreatment, pyrolysis and carbonization processes of raw sisal fiber as well as structure and properties of the resultant product were investigated. It was found that the sisal-based carbon fiber with moderate mechanical performance can be manufactured under the conditions applied. In addition, the application of the obtained sisal-based carbon fiber serving as functional material is presented.
Es wurde versucht, Sisalfasern zu kostengunstigen Kohlefasern zu carbonisieren. Vorbehandlung, Pyrolyse- und Carbonisierungsvorgang sowie Struktur und Eigenschaften der gebildeten Produkte wurden untersucht. Anwendungsmoglichkeiten fur die aus Sisal hergestellten Kohlefasern mit masigen mechanischen Eigenschaften werden vorgeschlagen.
10 citations
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01 Jan 2008
TL;DR: In this paper, the structural, thermal and mechanical characterization of sisal fibers extracted from the plant Agave sisalana is discussed, where the surfaces of these fibers are modified using different chemical and physical treatments in order to obtain a strong interface between fibers and the polymeric matrices while developing a composite.
Abstract: This chapter deals with the structural, thermal and mechanical characterization of sisal fibers extracted from the plant Agave sisalana. The surfaces of these fibers are modified using different chemical and physical treatments in order to obtain a strong interface between fibers and the polymeric matrices while developing a composite. The coupling agents used for fibers and polymer matrix strongly influence the tribological properties of the resulting composite. Sisal fiber reinforced polymer composites such as sisal-epoxy, sisal-polyester, sisal-phenolic, sisal-polyethylene, etc. possessgood mechanical as well as tribological properties. Sisal fibers also serve as a very useful ingredient offering desired properties in friction composites.
10 citations