Interfacial Strength of Twaron Fiber/PCL Composite Materials
Chen Jieng-Chiang (1)*, Wu Chang-Mou (2), Teng Yi-An (3), Wang Jie-Mao (3)
(1) Department of Product Design, Vanung University - Chungli - Taiwan, (2) Depart. of Mat. Sci. and Eng., National Taiwan University of Science and Technolog - Taipei - Taiwan, (3) Department of Fiber and Composite Materials, Feng-Chia University - Taichung - Taiwan
Twaron fibers were treated with H3PO4 solution to rough the surface of Twaron fibers. Three H3PO4 solution concentrations (1%, 10% and 30%) and treating time (1 min, 2 min and 3 min) were chosen to rough the fibers. Both treated and untreated Twaron fibers are reinforced polycaprolactone (PCL) matrix. Interfacial shear strength and tensile strength of treated and untreated were carried on a material testing machine (MTS 810)
The results show that the increasing H3PO4 solution concentrations and treating time decreased the tensile strength of the treated fibers. However, increasing H3PO4 solution concentrations and treating time increased the interfacial shear strength of the Twaron fibers/PCL materials. The optimal treatment for Twaron fiber with H3PO4 was 30% for 3 minutes. We also found that appropriate coating light-cured HV3 resin on the treated fibers enhanced the interfacial shear strength of Tawron/PCL materials.