Examining the mechanical and biodegradable characteristics of hemp fiber added PLA bio-composites with various modifications
Küçük Resim Yok
Tarih
2025-01-24
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SAGE Publications
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this research, green composites were produced by reinforcing 30% hemp fiber by weight for the purpose of improving the properties of polylactic acid (PLA) polymer. Surface treatments such as alkali (NaOH) and silane (APTES), different modification methods such as poly (butylene succinate) (PBS) and thermoplastic polyurethane (TPU) blend processes, maleic anhydride (MA) coupling were all employed to improve fiber-matrix interfacial adhesion. Extrusion and injection molding were used to create PLA bio-composites, and their thermal, mechanical, and degrading characteristics were examined. The glass transition and crystallization temperature generally reduced, while the melting temperature and degree of crystallinity increased, according to Differential Scanning Calorimetry (DSC). Reinforcement of hemp fiber increased the tensile strength of all bio-composites. Compared to pure PLA, the tensile strength of N-H/PLA (alkali-treated hemp/PLA) is 54.3%, P-H/PLA (PBS-untreated hemp/PLA) is 24.69% improved the T-H/PLA (TPU-untreated hemp/PLA) had the best elongation at break value due to the TPU polymer’s flexibility. The N-H/PLA bio-composite showed the lowest soil degradability after neat PLA. The S-H/PLA (silane-treated hemp/PLA) offers the highest weight loss value. The FTIR spectra of APTES-treated hemp fibers did not change significantly. The N-H/PLA had the lowest water absorption, while the M-H/PLA (MA- untreated hemp/PLA) had the greatest.
Açıklama
This work was supported by the Karabuk University; KBUBAP-21-DS116.
Bu çalışma Karabük Üniversitesi tarafından desteklenmiştir; KBUBAP-21-DS116.
Anahtar Kelimeler
Bio-composite, bio-degradable, hemp fiber, surface modification
Kaynak
Journal of Thermoplastic Composite Materials
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
Sayı
Künye
Çevik Elen N, Yıldırım M, Kanbur Y. Examining the mechanical and biodegradable characteristics of hemp fiber added PLA bio-composites with various modifications. Journal of Thermoplastic Composite Materials. 2025;0(0). doi:10.1177/08927057251316234
