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Keywords:

  • colloids;
  • filler;
  • mixing;
  • nanocomposites;
  • nanoparticles

Graphical Abstract

Thumbnail image of graphical abstract

A facile, novel, and versatile approach for the mixing of inorganic filler nanoparticles into a host polymer matrix is demonstrated. The employed approach is found to offer a significant increase in thermal and mechanical properties of the host polymer matrix at the inorganic filler level of as little as 0.24wt.-%.

Abstract

A novel and versatile approach for the mixing of ZnO nanofillers into a host polymer matrix, poly(ethyl methacrylate) (PEMA), is reported. Firstly, ZnO nanoparticles are deposited onto the surface of polystyrene (PS) colloidal particles in a “raspberry-like” fashion and subsequently obtained PS/ZnO composite particles are mixed into the PEMA matrix in the range of 0.5 to 5 wt.-%. Microscopic analyses reveal a homogenous distribution of PS/ZnO domains into the PEMA matrix even at 5 wt.-% loading level. Thermogravimetric analysis and differential scanning calorimetry results indicate an improvement in thermal stability of PEMA matrix after mixing with PS/ZnO filler particles. A significant enhancement in mechanical properties of PEMA matrix in the presence of PS/ZnO particles has been evidenced by dynamic mechanical analysis and three point bending measurements.