TY - JOUR
T1 - Fiber treatment impact on the thermal behavior of biomass/palm-fibers polylactic-acid hybrid biocomposites
AU - Lekrine, Abdelaziz
AU - Belaadi, Ahmed
AU - Dembri, Isma
AU - Jawaid, Mohammad
AU - Ismail, Ahmad Safwan
AU - Ghernaout, Djamel
N1 - Publisher Copyright:
© 2025 The Authors
PY - 2025/7/1
Y1 - 2025/7/1
N2 - The purpose of this investigation was to develop 100 % natural biocomposites from biopolymers such as polylactic acid (PLA) based on treated fibers and biochar (B) derived from the Washingtonia filifera (WF) plant. The dynamic mechanical characteristics, coefficient of thermal expansion, and thermal stability (TS) of biocomposites were studied using dynamic mechanical and thermomechanical analyses. Increasing the fiber treatment period caused the melting temperature of the biocomposites to decrease. The PLA-BWF72 composite demonstrated better TS compared to the others. Compared to untreated hybrid biocomposites, these composites exhibit enhanced TS and resistance following treatment with sodium bicarbonate. The dynamic mechanical analysis revealed that PLA-BWF72 hybrid biocomposites (2621.987 MPa) had a significantly higher storage modulus (SM) than the biocomposites produced. However, PLA-BWF24 hybrid biocomposites showed the lowest SM (2299.174 MPa), indicating a low level of stiffness. Cole-Cole plots of the hybrid biocomposites developed revealed the presence of imperfect semicircles, indicating their heterogeneity.
AB - The purpose of this investigation was to develop 100 % natural biocomposites from biopolymers such as polylactic acid (PLA) based on treated fibers and biochar (B) derived from the Washingtonia filifera (WF) plant. The dynamic mechanical characteristics, coefficient of thermal expansion, and thermal stability (TS) of biocomposites were studied using dynamic mechanical and thermomechanical analyses. Increasing the fiber treatment period caused the melting temperature of the biocomposites to decrease. The PLA-BWF72 composite demonstrated better TS compared to the others. Compared to untreated hybrid biocomposites, these composites exhibit enhanced TS and resistance following treatment with sodium bicarbonate. The dynamic mechanical analysis revealed that PLA-BWF72 hybrid biocomposites (2621.987 MPa) had a significantly higher storage modulus (SM) than the biocomposites produced. However, PLA-BWF24 hybrid biocomposites showed the lowest SM (2299.174 MPa), indicating a low level of stiffness. Cole-Cole plots of the hybrid biocomposites developed revealed the presence of imperfect semicircles, indicating their heterogeneity.
KW - Biochar/natural fibers
KW - Dynamic mechanical analysis
KW - NaHCO treatment
KW - Thermomechanical analysis
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U2 - 10.1016/j.matchemphys.2025.130651
DO - 10.1016/j.matchemphys.2025.130651
M3 - Article
AN - SCOPUS:86000132518
SN - 0254-0584
VL - 338
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 130651
ER -