The objectives of this study were to investigate the
long-term water absorption of PP/KF composites at
room temperature and its effect on mechanical properties
such as tensile, flexural, and impact properties.
In addition, the dimensional stability after water
absorption was determined by indicating the degree
of thickness swelling of samples. Besides studying the
effect of fiber loading on PP/KF, the purpose of this
study was also to explore the use of KF in PP-based
thermoplastic composites both with and without a
compatibilizer to address the weak interfacial bonding
between natural fibers and polymer matrices.