Synthesis and Properties of Polymethyl Methacrylate/Nanodiamond Composite Material

Here, the nanodiamonds modified by different amounts of silane coupling agent were dispersed into the polymethyl methacrylate (PMMA) prepolymer. The PMMA/nanodiamond composite material was then synthesized by a room-temperature curing reaction. The dispersity of the nanodiamond in the composite materials was studied. The properties of the as-prepared composite materials were also analyzed. The results indicated that when the nanodiamond concentration was less than 1.0%, the modified nanodiamond could be dispersed into the PMMA prepolymer homogeneously, which enhanced the mechanical properties of the PMMA composite materials. For the nanodiamond concentration of 1.0%, the mechanical properties could be enhanced by over 1.0%, which provided a new approach for improving the properties of PMMA-based composite materials.