Purnomo, Rudy Soenoko, Yudy Surya Irawan, Agus Suprapto
Novel biomaterials from natural zeolite-filled high-density polyethylene (HDPE) have been successfully formed through injection molding techniques at a barrel temperature of 160°C and with a barrel holding time of 2 minutes. Fracture behavior of a quasi-static state was investigated using the method of essential work of fracture (EWF) in a double edge-notched tensile test. The results showed that the fracture behavior depend on the zeolite content mixture. The fracture specific essential work to initiation of composites is lower than original HDPE without any material additions. Increasing the zeolite percentage causes a fracture specific work to crack propagation and energy dissipation during crack propagation decreased. However, the energy dissipation during yielding increases upon the addition of 15 wt.% zeolite and subsequent decline gradually. In a case of adding a 5 wt.% zeolite, fracture occurred in the state of transition to ductile, but the zeolite addition above 5 wt.% resulted a fracture behavior leading to brittle which was characterized by the work to initiate crack higher than the work in the plastic deformation zone. © Research India Publications.
Brawijaya University, Malang, Indonesia; Muhammadiyah University, Mechanical Engineering Department, Semarang, 50273, Indonesia; Brawijaya University, Mechanical Engineering Department, Malang, 65145, Indonesia; Merdeka University, Mechanical Engineering Department, Malang, 65115, Indonesia
