Development of roughness and decrease in hardness of abrasive wear surface in various types of polyethylene. Part I.

Abstract

Samples of eight grades of polyethylene from various manufacturers: PE100 2NT11-9 (Kazanorgsintez plant); Hostalen CRP-100 with increased resistance to cracking, PE 100RC, Hostalen 4731 PG - powder (LyondellBasell); PERT I and II type Dowlex 2344 and Dowlex 2377 (Dow); PE100 P6006 AD (Sabic); PE100 H1000PC (SCG, Thailand) tested for wear according to the ISO 9352 method with the determination of the roughness and hardness of the wear mark. A range of materials with consistently decreasing wear resistance have been identifi ed. It is shown that wear occurs in layers. The presence of layers does not change the position of materials in the range of wear resistance. A decrease in the hardness of materials under the wear surface is shown. The dependence of the roughness on the grain size of the abrasive is investigated.