Impact Resistance of Epoxy Composites Reinforced with Amazon Guaruman Fiber: A Brief Report

Fibers extracted from Amazonian plants that have traditionally been used by local communities to produce simple items such as ropes, nets, and rugs, are now recognized as promising composite reinforcements. This is the case for guaruman (Ischinosiphon körn) fiber, which was recently found to present...

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Bibliographic Details
Published in:Polymers 2021-07, Vol.13 (14), p.2264
Main Authors: Reis, Raphael, Garcia Filho, Fabio, Nunes, Larissa, Candido, Veronica, Silva, Alisson, Monteiro, Sergio
Format: Article
Language:English
Subjects:
Carpets
Communication
Energy
Fiber reinforced plastics
Impact resistance
Impact strength
Impact tests
Investigations
Scanning electron microscopy
Standard deviation
Variance analysis
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Summary:Fibers extracted from Amazonian plants that have traditionally been used by local communities to produce simple items such as ropes, nets, and rugs, are now recognized as promising composite reinforcements. This is the case for guaruman (Ischinosiphon körn) fiber, which was recently found to present potential mechanical and ballistic properties as 30 vol% reinforcement of epoxy composites. To complement these properties, Izod impact tests are now communicated in this brief report for similar composites with up to 30 vol% of guaruman fibers. A substantial increase in impact resistance, with over than 20 times the absorbed energy for the 30 vol% guaruman fiber composite, was obtained in comparison to neat epoxy. These results were statistically validated by Weibull analysis, ANOVA, and Tukey’s test. Scanning electron microscopy analysis disclosed the mechanisms responsible for the impact performance of the guaruman fiber composites.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym13142264