Final Properties Improvement of Polyethylene-Sepiolite Nanocomposites

MARTINI, RAQUEL EVANGELINA; LA TÉGOLA, SIMONE; TERENZI, ANDREA; BARBOSA, SILVIA ELENA; KENNY, JOSÉ M.

Paris, Francia

Conferencia; 5th International Conference on Nanostructured Polymers and Nanocomposites.; 2009

Consorcio Interuniversitario, Red europea, Nanofun-Poly

In this work, a systematic study of mechanical properties was performed in order to investigate the influence of the sepiolite content and modification on the basic properties of PE. The nanocomposites were prepared in a laboratory twin screw extruder in two steps. Initially, a masterbatch containing 10 % of sepiolite was prepared and, in a second step, it was diluted up to final concentration desiderate and directly molded by injection in a bone form specimen (for mechanical properties). In this sense, either the distributive or dispersive mixing was improved. Samples with 1, 3, 5 and 10 wt % and using sepiolite with and without surface modification were prepared and tested.