Development on Mechanical Properties of PMMA by Blending it with Natural Rubber or Silicone Rubber and Reinforced by Nanoparticle

In this study, an attempt to develop the mechanical properties of PMMA that are used in dentures material by using polymers blends of (PMMA: 2%NR) and (PMMA: 2%SR) as a matrix reinforced with natural nanoparticles of Clove Powder (CP) that were added with different weight fractions of (0.0, 0.1%, 0.3%, 0.5% and 0.7%). Two groups of composites samples were prepared according to the type of polymer blends matrix by using the hand lay-up method. The maximum values of tensile strength and modulus of elasticity were noted at 65 MPa and 1.033 GPa respectively for polymer blend nanocomposite [(PMMA: 2%NR): 0.5% CP], whereas, the Shore D hardness reaches to a maximum value of (89) for polymer blend nanocomposite (PMMA: 2%NR): 0.7% CP). On the basis of these results, it can be concluded that the addition of CP in a nanometer size to polymer blends materials (PMMA: 2% NR) is one of the hopeful materials that can be utilized to develop the mechanical properties for dentures base applications.