Erosive wear analysis of bamboo fiber‐reinforced high‐density polyethylene composites: Effect of aluminum oxide

Abstract

In order to improve the erosive wear resistance of bamboo fiber‐reinforced high‐density polyethylene (HDPE) composites, the effect of aluminum oxide (Al2O3) on the erosive wear behavior of composites was investigated. The study of erosive wear was using the swirling water jet technique. The results showed that the addition of nanoscale Al2O3 could optimize the structural strength, composite structure, and erosive wear resistance of composites. The best erosive wear resistance was observed in composites containing 6/189 wt% of nanoscale Al2O3, 80/189 wt% of bamboo fiber, 100/189 wt% of HDPE, and 3/189 wt% of maleic anhydride grafted polyethylene. The composites with and without adding nanoscale Al2O3, both exhibited a maximum erosive wear rate at a shooting distance of 0.5 cm and an erosive duration of 180 s. The erosive wear mechanism of composites mainly included pulverization of bamboo fibers, brittle fracture of HDPE matrix, and increasing in oxygen content.

Curing kinetics, thermal and erosive wear characteristics of bismaleimide blends modified by polyaryletherketone

“…On the basis of the tribology principle of polymer materials, under a swirling water jet containing garnet sands, the formation of erosive wear can be attributed to the tensile and shear failures caused by the radial and tangential velocities, the forward impact of dynamic pressure and the water wedge effect of quasi-static pressure. 23 Moreover, a strong correlation between erosive wear resistance and the H / E ratio was observed in this study, that is, the higher the H / E value, the higher the erosive wear resistance. Higher H / E values manifested the higher indentation resistance.…”

“…22 Generally speaking, the wear conditions of polymer composites in practical applications can be divided into sliding wear, abrasive wear and erosive wear. 23 Erosive wear, a typical wear mode, is a serious problem in many engineering systems, including steam and jet turbines, pipelines and valves carrying particulate matter, and fluidized bed combustion systems, and has become one of the main reasons of material destruction or equipment failure in many industry sectors. 24 Erosive damage is a complex process affected by many factors.…”