TENSILE PROPERTIES AND MORPHOLOGICAL TEST OF HEAT CURED ACRYLIC RESIN REINFORCED BY NATURAL POWDERS JAWAD K. OLEIWI, QAHTAN ADNAN HAMAD & HADIL JABBAR ABDUL RAHMAN

In the present research, studying the effect of adding two different types of reinforcing particles, whi ch included: Rice Husk and Bamboo powders which were pract ical size (25 and 75 µm) and utilize at four various concentrations of (2,4,6, and 8 wt.%), to locate improved in the properties of tensile for heat-cure acrylic resin. The blend of resin and powders were cured at temperature 70-100 °C in a water bath and 2.5 bar for 2hours, The ASTM D638 is used for composite specimens of the tensile test. The results showed that the strength of tensile and Young's modulus became better with low particle size and high concentration. Also, the results showed that the largest values of tensile strength and modulus of elasticity were (96 MPa.) and (1.85 GPa.) respectively when reinforced by Rice Husk powder at particle size (25 µm) and concentration (8 wt. %)