were mixed on a
laboratory size open two roll mixing mill (Roll size, 6″ × 12″, model —
Ravi Engineering Works, New Delhi) at a friction ratio of 1:1.05, nip
gap of 0.5 mm and at room temperature as per ASTM D 3182-
89(2011). The mixed, rolled stock was homogenized by passing endwise
six times. The test specimens were prepared by compression
molding at 150 °C, 70 kg/cm2 for 5min on an electrically heated hydraulic
press