Sep 20, 2008 · The friction efficients of all PA46/HDPE blends were as low as 0.21–0.22, which were near the friction efficient of pure HDPE, and much lower than that of pure PA46 (0.77). (3) Except for PA46/HDPE (8/2), the specific wear rates of PA46/HDPE polyblends were between that of the mponents PA46 and HDPE, and decreased with