BALL MILLING EFFECT ON THE PROPERTIES OF ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE - BRONZE COMPOSITE

摘要

Peculiarities of the technology to produce a composite material based on ultra-high molecular weight polyethylene (UHMWPE), mechanically activated with bronze powder are considered along with the properties of the produced material. Samples of the press-composition on the basis of UHMWPE with 0 up to 97.5% of the bronze powder addition were prepared by joint mechanoactivation of super-high-molecular polymer and the bronze powder using planetary mechanoactivator MPF-1 and toroidal vibration mechanoactivator MV-0.05. Packed density of the press-composition was analyzed as a function of the formula and the mechanoactivation technique used. Bulk samples for the tests were obtained by direct pressing. The properties of the samples were studied, and the relations between the density of the material, the physical and mechanical and thermal-physical properties and the concentration of the bronze powder in the material and the milling time were investigated.