Journal
EUROPEAN POLYMER JOURNAL
Volume 45, Issue 8, Pages 2202-2210Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2009.04.010
Keywords
POSS; PPO; PA6; Co-continuous morphology; Phase inversion
Categories
Funding
- Shanghai Qingpu District
- Shanghai Jiao Tong University
- Funds of Science and Technology Commission of Shanghai Municipality [06XD14213]
- Shanghai Leading Academic Discipline Project [B202]
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Poly(2,6-dimethyl-1,4-phenylene oxide)/polyamide 6 (PPO/PA6) (50/50 w) blends filled with epoxycyclohexyl polyhedral oligomeric silsesquioxane (POSS) were prepared via melt-mixing. The reactions between POSS and PPO/PA6 blends were studied by Fourier transform infrared spectroscopy, end group and gel content tests. The morphology of PPO/PA6/POSS composites was observed by field emission scanning electron microscope and transmission electron microscope. As a chain extender and a crosslinking agent for PA6, POSS largely affected the morphology of the composites, which was mainly dependent on the melt-viscosity ratio and interfacial tension between the components. With increasing POSS content from 2 to 4 phr, the morphology of the composites transformed from droplet/matrix to co-continuous morphology, The PPO/PA6/POSS composites with co-continuous morphology had the better mechanical properties than those with droplet/matrix morphology. Dynamic mechanical thermal analysis showed that the addition of POSS increased the T-g of PA6. (C) 2009 Elsevier Ltd. All rights reserved.
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