Identifying Morphological Changes in Immiscible Polyolefin Ternary Blends

Abstract

This article seeks to address morphological evolutions in polyolefinic ternary blends. To catch this target, different binary and ternary blends comprising HDPE, PP, and PA-6 constituents were prepared varying the type of polyolefinic matrix and composition in minority phase. Afterward, development of microstructure was monitored based upon theoretical and experimental analyses. In case of HDPE-based ternary blends, experimental microstructure observations agreed well with predictions, whereas SEM images provided from PP-based systems did not give strong evidence for encapsulation of PA-6 by HDPE minor domains. Analysis of stress-transfer across the matrix/shell/core provided a profound sense of morphological changes in these systems. © 2014 Copyright Taylor & Francis Group, LLC.