Physical and Thermal Properties of Novel Native Andean Natural Fibers

Natural fibers are a renewable resource that has become an economic alternative to replace synthetic fibers as reinforcement in composite materials. In this study, the aim was to characterize physical and thermal properties of the Andean Stipa obtusa and Jarava ichu leaves (grasses known as ichu) be...

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Main Authors: Sandra Mori, Samuel Charca, Elena Flores, Holmer Savastano
Format: Article
Language:English
Published: Taylor & Francis Group 2021-04-01
Series:Journal of Natural Fibers
Subjects:
Online Access:http://dx.doi.org/10.1080/15440478.2019.1629150
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author Sandra Mori
Samuel Charca
Elena Flores
Holmer Savastano
author_facet Sandra Mori
Samuel Charca
Elena Flores
Holmer Savastano
author_sort Sandra Mori
collection DOAJ
description Natural fibers are a renewable resource that has become an economic alternative to replace synthetic fibers as reinforcement in composite materials. In this study, the aim was to characterize physical and thermal properties of the Andean Stipa obtusa and Jarava ichu leaves (grasses known as ichu) before and after the alkaline treatment. Energy dispersive spectrum identified external phytoliths on the surface of nontreated raw leaves. With the alkaline treatment, improvement on the thermal stability and increment in the crystalline index and size was observed. Additionally, raw leaves present a hydrophobic behavior; however, with the treatment this hydrophobicity was lost for Stipa obtusasignificantly but not for the Jarava ichu. Furthermore, low surface energy was observed for the nontreated raw leaves and increasing consistently for the treated fibers. According with these results, these grasses are quite interesting materials from which fibers can be extracted for engineering applications such as composite materials.
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spelling doaj.art-0c629e3d351c4d7894e5653b5e5f28462023-09-20T12:50:16ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2021-04-0118447549110.1080/15440478.2019.16291501629150Physical and Thermal Properties of Novel Native Andean Natural FibersSandra Mori0Samuel Charca1Elena Flores2Holmer Savastano3Universidad de Ingeniería y Tecnología, UTECUniversidad de Ingeniería y Tecnología, UTECUniversidad de Ingeniería y Tecnología, UTECFZEANatural fibers are a renewable resource that has become an economic alternative to replace synthetic fibers as reinforcement in composite materials. In this study, the aim was to characterize physical and thermal properties of the Andean Stipa obtusa and Jarava ichu leaves (grasses known as ichu) before and after the alkaline treatment. Energy dispersive spectrum identified external phytoliths on the surface of nontreated raw leaves. With the alkaline treatment, improvement on the thermal stability and increment in the crystalline index and size was observed. Additionally, raw leaves present a hydrophobic behavior; however, with the treatment this hydrophobicity was lost for Stipa obtusasignificantly but not for the Jarava ichu. Furthermore, low surface energy was observed for the nontreated raw leaves and increasing consistently for the treated fibers. According with these results, these grasses are quite interesting materials from which fibers can be extracted for engineering applications such as composite materials.http://dx.doi.org/10.1080/15440478.2019.1629150natural fibersichualkali treatmentamorphous silica particlescomposite materials
spellingShingle Sandra Mori
Samuel Charca
Elena Flores
Holmer Savastano
Physical and Thermal Properties of Novel Native Andean Natural Fibers
Journal of Natural Fibers
natural fibers
ichu
alkali treatment
amorphous silica particles
composite materials
title Physical and Thermal Properties of Novel Native Andean Natural Fibers
title_full Physical and Thermal Properties of Novel Native Andean Natural Fibers
title_fullStr Physical and Thermal Properties of Novel Native Andean Natural Fibers
title_full_unstemmed Physical and Thermal Properties of Novel Native Andean Natural Fibers
title_short Physical and Thermal Properties of Novel Native Andean Natural Fibers
title_sort physical and thermal properties of novel native andean natural fibers
topic natural fibers
ichu
alkali treatment
amorphous silica particles
composite materials
url http://dx.doi.org/10.1080/15440478.2019.1629150
work_keys_str_mv AT sandramori physicalandthermalpropertiesofnovelnativeandeannaturalfibers
AT samuelcharca physicalandthermalpropertiesofnovelnativeandeannaturalfibers
AT elenaflores physicalandthermalpropertiesofnovelnativeandeannaturalfibers
AT holmersavastano physicalandthermalpropertiesofnovelnativeandeannaturalfibers