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This research is to study the creep and tensile behaviour of High Density Polyethylene composited, HDPE certain thickness from 50% HDPE bottle and 50% HDPE 50% bran bottle, HDPE 60% milk bottle 40% chaff, HDPE 70% milk bottle 30% chaff by mass the results of the tensile test that have been compared with the 5 types of tested materials show that the material type The thickest High Density Polyethylene HDPE from the Milk bottle uses more pulling force than other materials. the plastic has the maximum tensile strength of 1075.4 Newtons, which has the highest stress at 19.07 MPa and 50% HDPE material (50% bottles of 50% bran) by mass, the plastic has the highest tensile strength of 163.47 Newtons. The maximum stress is 3.41 MPa, which requires less pulling force than other materials. The results of the creep behaviour when comparing with the 4 types of tested materials, found that all 4 types of materials that have rapid creep behaviour during the initial period have the same creep behaviour and materials. The most creep was HDPE from shampoo bottles and the least creep was HDPE material (70% milk bottle, 30% chaff) by mass.
Keywords : Creep behaviour, Plastic, Tensile strength