PREPARATION AND STUDY ON PROPERTIES OF POLYMER ALLOYS MATERIALS BASED ON HDPE AND WASTE RUBBER POWDER MODIFICA TED BY STERARIC ACID/ZnO AND ZINC STEARATE

Abstract

In this article it is presented the results obtained by our studies on the influence of additivesas a mixture of stearic acid/ZnO and zinc stearate to mechanical properties and melting point ofpolymer alloys materials based on HDPE and waste rubber powder (WRP) with the initiator ofdicumyl dioxide. With the ratio of stearic acid/ZnO of 3/2 the mechanical properties of polymeralloy are reached highest values of 20.26 MPa in tensile strength and 303% in elongation. Thematerials with 5 percent of zinc stearate have 18.25 MPa in tensile strength and 296% in". elongation. By thermal analysis results, the addition of stearic acid/ZnO in .polymer alloy makesa rise of 4 degrees in melting point in comparison to the materials containing only zinc stearate