Low linear density polyethylene (LLDPE)anoclay composites: process parameters and mechanical properties

摘要

It has been known that the tensile property of thermoplastic reinforced with nanoclay depends on the good qualities such as exfoliation and dispersion of the material structure on a nanoscale. This study aimed to investigate the effects of process parameters on tensile properties of linear low density polyethylene (LLDPE)anoclay composite made by a co-rotating twin screws extruder. Effects of nanoclay content and coupling agent were also accessed. The best tensile properties for the extruded polyolefinanoclay composite were obtained under the following process conditions: rotational speed of 150 rpm, melt temperature of 170°C, Fusabond® M603 content of wt2% and clay loading of 3%. Low clay content leaded to an enhancement of 11.5% for the tensile strength whereas the high clay content leaded to a 135% more rigid composite.