Effect of fiber orientation and elevated temperature on the mechanical properties of unidirectional continuous kenaf reinforced PLA composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F23%3A43923021" target="_blank" >RIV/62156489:43410/23:43923021 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/23:00374302

Výsledek na webu

<a href="https://doi.org/10.1515/rams-2022-0275" target="_blank" >https://doi.org/10.1515/rams-2022-0275</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/rams-2022-0275" target="_blank" >10.1515/rams-2022-0275</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of fiber orientation and elevated temperature on the mechanical properties of unidirectional continuous kenaf reinforced PLA composites

Popis výsledku v původním jazyce

Limitation in practical applications of biopolymer-fiber composite is mainly at higher temperatures. Thus, this study highlights the effects of fiber orientation on the durability of polylactic acid (PLA) reinforced with unidirectional (UD) continuous kenaf fibers at elevated temperatures. PLA and long kenaf fiber were fabricated using the hot-pressing method and stacked at fiber orientations of 0o, 45o, or 90o, relative to the tensile force. Dynamic mechanical analysis of the composites shows excellent anti-shock and temperature-resistant properties of the composite. UD PLA-kenaf composites with a 0o fiber orientation showed an ultimate tensile of TILDE OPERATOR+D91190 MPa and a flexural strength of TILDE OPERATOR+D91235 MPa, and the strength of the composite was able to retain up to 120oC temperature. The debonding behavior of the fiber from the matrix (fiber pull-out) supported by microscopy proved that interfacial failure occurs from the local strains, which initiate cracking. Interfacial failure and stress transfer have caused a remarkable reduction in composite strength when fibers were oriented at 90o. Hence, this current improvement in the performance of the UD PLA-kenaf fiber composite may potentially replace conventional synthetic fibers, especially for structural automotive applications.

Název v anglickém jazyce

Effect of fiber orientation and elevated temperature on the mechanical properties of unidirectional continuous kenaf reinforced PLA composites

Popis výsledku anglicky

Limitation in practical applications of biopolymer-fiber composite is mainly at higher temperatures. Thus, this study highlights the effects of fiber orientation on the durability of polylactic acid (PLA) reinforced with unidirectional (UD) continuous kenaf fibers at elevated temperatures. PLA and long kenaf fiber were fabricated using the hot-pressing method and stacked at fiber orientations of 0o, 45o, or 90o, relative to the tensile force. Dynamic mechanical analysis of the composites shows excellent anti-shock and temperature-resistant properties of the composite. UD PLA-kenaf composites with a 0o fiber orientation showed an ultimate tensile of TILDE OPERATOR+D91190 MPa and a flexural strength of TILDE OPERATOR+D91235 MPa, and the strength of the composite was able to retain up to 120oC temperature. The debonding behavior of the fiber from the matrix (fiber pull-out) supported by microscopy proved that interfacial failure occurs from the local strains, which initiate cracking. Interfacial failure and stress transfer have caused a remarkable reduction in composite strength when fibers were oriented at 90o. Hence, this current improvement in the performance of the UD PLA-kenaf fiber composite may potentially replace conventional synthetic fibers, especially for structural automotive applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10700 - Other natural sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Reviews on Advanced Materials Science

ISSN

1606-5131

e-ISSN

1605-8127

Svazek periodika

62

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

13

Strana od-do

20220275

Kód UT WoS článku

000919517300001

EID výsledku v databázi Scopus

2-s2.0-85146714673