Study on the Tensile Strength and Micromechanical Analysis of Alfa Fibers Reinforced High Density Polyethylene Composites

In the recent years, there has been a growing interest in eco-friendly composites, based on natural fiber reinforcements. In this work, Alfa fibers were obtained from Alfa grass ( Stipa tenacissima ) through an intensive cooking with sodium hydroxide and anthraquinone. These fibers, with contents ra...

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Bibliographic Details
Published in:Fibers and polymers 2019, 20(3), , pp.602-610
Main Authors: Salem, Sahar, Oliver-Ortega, Helena, Espinach, Francesc X., Hamed, Karim Ben, Nasri, Nizar, Alcalà, Manel, Mutjé, Pere
Format: Article
Language:English
Subjects:
Anthraquinones
Chemical composition
Chemistry
Chemistry and Materials Science
Cooking
Fiber reinforcement
Fibers
High density polyethylenes
Micromechanics
Morphology
Polyethylene
Polymer matrix composites
Polymer Sciences
Sodium hydroxide
Tensile strength
섬유공학
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Summary:In the recent years, there has been a growing interest in eco-friendly composites, based on natural fiber reinforcements. In this work, Alfa fibers were obtained from Alfa grass ( Stipa tenacissima ) through an intensive cooking with sodium hydroxide and anthraquinone. These fibers, with contents ranging from 20 to 50 wt%, were used to reinforce a high density polyethylene. The composites were prepared in a kinetic mixer and later on tensile tested under standard conditions. The results showed that the tensile strength of the composites increased with the amount of fiber in the composite. Aditionally, a morphology and chemical composition analysis of the fibers surface were carried on, in order to further discuss the micromechanics analysis results. The average orientation factor and intrinsic tensile strength of the fibers were also determined during the micromechanics analysis.
ISSN:1229-9197
1875-0052
DOI:10.1007/s12221-019-8568-x