Improvement Mechanism of Fracture Toughness of HDPE with Mixing Mechanism (Nano particle) for Pipe Application

摘要

This work studies the effect of TiO_2 on mechanical properties of high density polyethylene (HDPE)/titanium dioxide (TiO_2) nanocomposites for pipe application. The HDPE/TiO_2 nanocomposites were prepared by melt mixing technique in a twin-screw extruder. Nanocomposites with weight fraction (0.5, 2.5, 4wt.% ) were fabricated. Mechanical behavior tests include (tensile strength, impact, and hardness tests) and structure test (FTIR) were used. Values of mechanical tests for titanium dioxide (TiO_2) nanoparticle reinforced High density polyethylene (HDPE) nanocomposites were much better than the neat high density polyethylene. Result of FTIR test showed physical reaction without the formation of new peaks.