SYNTHESIS AND PROPERTIES OF POLYETHYLENE COMPOSITES WITH NATURAL ZEOLITES

Two types of immobilized catalysts active in ethylene polymerization w ere prepared on the basis of natural zeolite-containing minerals. The catalysts were composed of anchored alkylaluminoxanes and vanadium oxy trichloride and the anchored compounds of vanadium and Al(i-Bu-3) or A lEt2Cl. The kinetics of ethylene polymerization in the presence of zeo lites was studied, and the mechanical and tribological properties of t he resulting PE composites were investigated. The polymerization-fille d composite material based on UHMPE and natural zeolites that combine enhanced wear-resistant properties with low friction coefficient and h igh impact strength were developed.