Author(s)

Chin Voon Sia, Yoshikazu Nakai, Hiroshi Tanaka, Daiki Shiozawa

Department of Mechanical Engineering, Kobe University, Kobe, Japan.

In this work, interfacial fracture toughness between treated fiber and matrix was investigated by using double shear test method. Susrface treatment on the oil palm empty fruit bunch (OPEFB) fibers was performed to improve the interfacial bosnding properties of natural fiber reinforced Poly(L-lactide acid) composites. Three fibers model composite and four fibers model composite were prepared for the double shear test. The interfacial fracture toughness of both model composites is dependent on matrix length. In addition, the interfacial fracture toughness and the critical interfacial shear stress were increased with increasing the concentration of NaOH and the duration of surface treatment.

Fiber, Interfacial Fracture Toughness, Interfacial Shear Strength, Surface Treatment

Sia, C. , Nakai, Y. , Tanaka, H. and Shiozawa, D. (2014) Interfacial Fracture Toughness Evaluation of Poly(L-lactide acid)/Natural Fiber Composite by Using Double Shear Test Method. Open Journal of Composite Materials, 4, 97-105. doi: 10.4236/ojcm.2014.42011.