Authors: Kyung Hwan Lee Seung Joon Lim Woo Nyon Kim
Publish Date: 2014/06/21
Volume: 22, Issue: 6, Pages: 624-631
Abstract
In this study the rheological mechanical and thermal properties of polyamide 6 PA6 and PA6/glass fiber GF composite with repeated extrusions were investigated The complex viscosity of the PA6 was found to decrease with the increase of repeated extrusion The decrease in complex viscosity was due to the decrease in the molecular weights of the PA6 The decrease in tensile strength of the PA6GF was due to the continuous chopping of the glass fibers with repeated extrusion as well as the decrease in molecular weight of the PA6 The half crystallization time of the PA6 and PA6GF decreased with the increase of repeated extrusion The fraction of the 1time repeated extrusion of the PA6 PA6A in the PA6/PA6A blend was obtained from the ratio of the complex viscosity of the PA6A blend and the complex viscosity of the PA6 A rheological method is presented that can estimate the fraction of the repeated extrusion of the polymer from the virgin polymer/repeated extrusion of the polymer mixtures
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