Abstract
Organic montmorillonite (OMMT)/polyamide-6 (PA6)/polylactic acid (PLA) composites were prepared via a step melt compounding process using a twin screw. The effect of OMMT content on the crystallization behavior, as well as rheological and mechanical properties of the composites was carried out by differential scanning calorimetry, differential mechanical analysis, and using an advanced rheometer and a material testing machine. The crystallization behavior of the polymers was studied using a dynamic rheology method, which allowed to determine the onset of nucleation and obtain semiquantitative data on the nucleation density. The results revealed that the interaction between the OMMT and the PA6/PLA inhibits the molecular chain segment motion, which reduces the nucleation temperature, the crystal growth temperature, the melting temperature and the glass transition temperature of the samples. However, the PA6/PLA/OMMT composites showed better mechanical properties than the PA6/PLA composites.
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