6533b829fe1ef96bd128abc3

RESEARCH PRODUCT

Blends of polyamide 6 and linear low density polyethylene functionalized with methacrylic acid derivatives

subject

description

Abstract Morphological, calorimetric, rheological, dielectric and mechanical behaviour of blends made with polyamide 6 (PA6) and linear low density polyethylene (PE) are presented. The PE was functionalized grafting ester and alcohol groups in a Brabender mixer with methacrylic acid derivatives. These groups induce “compatibilization” effects in the blends with respect to blends made with the unfunctionalized polyethylene. The difference effects on the behaviour of the blends of the various functional groups are shown. In particular, the interactions at the interface change depending on the chemical nature of the grafted groups. Ethyl and isobuthyl-methacrylate essentially cause dipolar interactions and hydrogen bonding whereas hydroxyethyl-methacrylate gives rise to condensation reactions with the functional groups of polyamide. This last blend presents the highest increase of the elongation at break.