PREPARATION OF ASPHALT EMULSIONS STABILIZED WITH POLYSTYRENE NANOPARTICLES OBTAINED FROM RECYCLED MATERIAL

• DOI: 10.22533/at.ed.317272210058

• Palavras-chave: Asphalt, engineering

• Keywords: Asphalt, engineering

• Abstract:

  Asphaltic emulsions stabilized with solid particles have potential advantages over conventional systems, which are formulated with surfactants which tend to be less stable and more toxic than solid particles. This kind of liquid-liquid stabilization is known as Pickering emulsions that can be aligned with basic sustainability principles. This study assessment the feasibility of using polystyrene nanoparticles to prepare Pickering asphaltic emulsions. The nanoparticles were obtained of solid urban waste materials called expanded polystyrene foam by emulsification and solvent displacement method which allowing of reuse of the solvent, being a total green process. Size of asphaltic globules was reduced according increased the concentration of polystyrene nanoparticles, until certain concentration. To 30 days of storage all asphaltic emulsions did not show phase separation or creaming.

• Número de páginas: 5