Through compounding and molding techniques, variation of porosity and the resulting effect on the mechanical properties of one-phase poly(methyl methacrylate) (PMMA) were studied. Characterization of the composites developed was pursued by correlating the microstructure with the physical and mechanical behavior of the material. From the three compounding techniques studied, NaCl-filled PMMA proved to have the best overall mechanical properties and control of porosity compared to a wide range of filler content.
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