Abstract: Polystyrene/polyacrylamide/organic montmorillonite core-shell particles were synthesized through emulsion polymerization and used to modify polyamide 6, their influence on mechanical properties, processability, crystallization behavior, and thermal stability of PA6 composites was investigated. By the inclusion of the core-shell particles, the flexile strength and modulus were increased by 1.44 and 3.46%, respectively, based on neat PA6. The core-shell particles acted as nucleating agent, which increased the crystallization temperature of PA6by 8.5 oC and the degree of crystallinity by 3.3 %. The PA6 composites also showed a good thermal stability and processability, the melt flow rate was increased by 118 %.

Key words: organic montmorillonite, acrylamide, core–shell structure, Modified PA6