Abstract
The curaua fiber is one of the strongest lignocellulosic fibers and is currently being considered as reinforcement of polymer composites for industrial applications such as automobile interior components and bicycle helmets. The tensile strength of the curaua fiber was found to display an inverse variation with its corresponding equivalent diameter. Since the stiffness of the fiber is also important for its use as composite reinforcement, the present work investigated the dependence of the elastic modulus of curaua fibers with the associated diameters. The results confirmed the existence of an inverse dependence between the elastic modulus and the fiber diameter. In principle, this could allow a selection of stiffer curaua fibers to be used as reinforcement in polymer composites with comparatively higher elastic modulus. A possible mechanism for this inverse dependence is discussed following structural differences between thicker and thinner fibers.
Highlights
Natural planted-based materials are gaining attention in recent years owing to their advantages to the environment as compared to synthetic materials, especially those like plastics fabricated from petroleumbased precursors
They are considerate fully sustainable [1]. Their life-cycle, from growing to industrial processing, absorbs as much CO 2 as it is emitted and makes them neutral with respect to greenhouse gases responsible for global warming [2]. Typical examples of these environment-friendly materials are the lignocellulosic fibers that have been used in simple items such as ropes, baskets, textile, modest roofing, etc [3]
Paper, which commercializes lignocellulosic fibers cultivated in the Amazonian region of Brazil
Summary
Natural planted-based materials are gaining attention in recent years owing to their advantages to the environment as compared to synthetic materials, especially those like plastics fabricated from petroleumbased precursors. They are considerate fully sustainable [1]. Their life-cycle, from growing to industrial processing, absorbs as much CO 2 as it is emitted and makes them neutral with respect to greenhouse gases responsible for global warming [2]. Typical examples of these environment-friendly materials are the lignocellulosic fibers that have been used in simple items such as ropes, baskets, textile, modest roofing, etc [3]. Out of the many available natural fibers, only part of them exhibits superior properties for composite reinforcement application
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