Tribological Characteristics Improvement of Wear Resistant MAO-Coatings

Table 1

Key characteristics of some polymer materials.

Polymer	Density	Hardness	Wear resistance on quarz sand	Friction coefficient
	kg/m^3	MPa	min/mm^3	—
UHMWPE	934	40	18,40	0,08
UHMWPE + MoS2	1150	55	31,60	—
PELP (low pressure)	950	55	10,50	0,10
PEHP (high pressure)	900	28	2,79	0,27
Polypropylene	850	51	2,08	0,35
Teflon-4	2130	38	6,36	0,05
Teflon-3	2160	130	5,46	—
Polystyrene	1040	175	0,93	0,45
Polymethylmethacrylate	1170	181	1,30	0,55
Polyamide resin	1080	109	12,90	0,22
Kaprolone	1130	180	3,38	0,23
Vinyl	1420	122	3,64	0,58
Polycarbonate	1180	101	2,47	0,60
Polyacetal	1390	177	1,56	0,13
Epoxy resin	1270	202	1,64
Wood plastic	1260	312	1,30	—
Fiberglass AΓ-43	1850	369	0,82	—

Note: Wear resistance was taken as the quantity opposite value to the rate of wear.