Author(s): Pritosh Tomar, PC Gope and Sonika Chauhan

Abstract: In this study, a composite material with PMMA and MMA as the matrix components was created and reinforced with Chopped glass fibers at various weight percentages (5, 10%). Because it has a number of advantageous qualities, such as being simple to make, lightweight, affordable, and others, poly methyl methacrylate, or PMMA, polymer, has been widely employed in dental applications throughout the years. But when put under a lot of strain, it has poor mechanical qualities. By combining two different types of fibres, the goal of this research was to create composite materials with improved mechanical qualities. The composite specimens were prepared using the BIS standard processing method for full dentures. To ascertain whether or not reinforcing materials and the saline coupling agent have a chemical relationship, SEM tests were performed on Chopped nylon fiber before and after salinization. All specimens underwent physical testing including heat conductivity, water sorption, and solubility. All specimens underwent physical testing for heat conductivity, water sorption, and solubility. According to the findings, reinforced specimens had much lower heat conductivity, water absorption, and solubility than pure specimens. Sisal fibres reinforced PMMA specimens exhibited a modest drop in thermal conductivity with increasing fibre concentration, while composite specimens showed increases in water sorption and solubility. The silane treatment produced a new absorption band, according to FTIR measurements.

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