STUDY ON THE PREPARATION AND MEASUMENT OF PROPERTIES OF POLYMER ALLOYS MATERIALS BASED ON HDPE AND WASTE RUBBER POWDER MODIFICATED BY ULTRASOUND AND STEARIC ACID

Abstract

It is presented our studies on the influence of the modification method of the surface ofwaste rubber powder (WRP) by ultrasound and stearic acid to mechanical properties and meltingpoint of polymer alloys materials based on the WRP and HDPE. With WRP treated byultrasound, polymer alloy is improved in mechanical properties and reaches the maximumvalues after ultrasonic oscillation treating time of 30 mins. Data obtained show that WRPmodified during melting mixing process has higher mechanical and melting point than thatbefore mixing. WRP containing 3% of stearic acid has the highest mechanical properties of19.15 MPa in -the tensile strength and 302% in elongation.