TY - JOUR
T1 - Biobased PLA/sugarcane bagasse fiber composites
T2 - Effect of fiber characteristics and interfacial adhesion on properties
AU - Bartos, András
AU - Nagy, Kristóf
AU - Anggono, Juliana
AU - Antoni,
AU - Purwaningsih, Hariyati
AU - Móczó, János
AU - Pukánszky, Béla
N1 - Publisher Copyright:
© 2021 The Authors
PY - 2021/4
Y1 - 2021/4
N2 - PLA/sugarcane bagasse fiber composites were prepared by injection molding from two fractions of fibers with different fiber characteristics, which were determined before and after processing. Interfacial adhesion was modified by a maleated PLA coupling agent. The mechanical properties of the composites were characterized by tensile and impact testing, while local deformation processes by acoustic emission testing and microscopy. The results showed that considerable attrition takes place during melt processing in both the length and diameter of the fibers. The originally different batches of short and long fibers have similar dimensions after processing. Interfacial adhesion between PLA and bagasse is inherently good, thus coupling does not improve properties. Shear yielding and fiber fracture consume sufficiently energy to increase the impact resistance. Sugarcane bagasse fibers considerably increase the stiffness of PLA, result in almost constant tensile strength and increase impact resistance yielding a material with reasonable combination of properties for structural applications.
AB - PLA/sugarcane bagasse fiber composites were prepared by injection molding from two fractions of fibers with different fiber characteristics, which were determined before and after processing. Interfacial adhesion was modified by a maleated PLA coupling agent. The mechanical properties of the composites were characterized by tensile and impact testing, while local deformation processes by acoustic emission testing and microscopy. The results showed that considerable attrition takes place during melt processing in both the length and diameter of the fibers. The originally different batches of short and long fibers have similar dimensions after processing. Interfacial adhesion between PLA and bagasse is inherently good, thus coupling does not improve properties. Shear yielding and fiber fracture consume sufficiently energy to increase the impact resistance. Sugarcane bagasse fibers considerably increase the stiffness of PLA, result in almost constant tensile strength and increase impact resistance yielding a material with reasonable combination of properties for structural applications.
KW - A: biocomposite
KW - B: adhesion
KW - D: acoustic emission
KW - E: injection moulding
UR - http://www.scopus.com/inward/record.url?scp=85100412287&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2021.106273
DO - 10.1016/j.compositesa.2021.106273
M3 - Article
AN - SCOPUS:85100412287
SN - 1359-835X
VL - 143
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 106273
ER -