Morphology Prediction in HDPE/PA-6/EVOH Ternary Blends: Defining the Role of Elasticity Ratio

作者：Saeb Mohammad Reza; Khonakdar Hossein Ali^*; Razban Meshkat; Jafari Seyyed Hassan; Garmabi Hamid; Wagenknecht Udo

来源：Macromolecular Chemistry and Physics, 2012, 213(17): 1791-1802.

DOI：10.1002/macp.201200158

• elasticity ratio
• HDPE
• PA-6
• EVOH ternary blend
• morphology prediction

The morphology of uncompatibilized HDPE/PA-6/EVOH ternary blends was predicted using static and dynamic phenomenological models wherein PA-6 to EVOH component ratio and temperature were chosen as influential parameters. The type of morphology and particle size in HDPE/PA-6/EVOH blends are then examined by scanning electron microscopy and image analysis techniques. The coreshell structure was observed for all ternary samples, in which PA-6 domains were encapsulated by a thin layer of EVOH within HDPE matrix. Among various criteria, that is, viscosity ratio, interfacial tension, and elasticity ratio, the elasticity ratio has been found to be the most influential parameter for investigation of coreshell size alteration with temperature and component ratio.

• 出版日期2012-9-14