Mahdi Ghasemifard, Misagh Ghamari, Murat Yavuz Yener, Cumali Tav, Ugur Yahsi
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Examination of the surface microstructure of α-alumina filled HDPE nanocomposites using positron annihilation methods
High-density polyethylene (HDPE) nanocomposites with alpha alumina nanoparticles at various weight fractions (0.5 wt%, 1 wt%, 1.5 wt%, 2 wt%, 2.5 wt%, and 3 wt%) were successfully synthesized using the hot press method. X-ray diffraction (XRD) results revealed that increasing the weight percentage of alumina had no significant effect on the initial semi-crystallinity. Atomic force microscopy (AFM) images revealed that achieving high surface homogeneity is possible at higher alumina contents. Positron annihilation lifetime spectroscopy (PALS) and low energy positron beam technique (LEPB) were used to investigate the size, concentration and shape of the free volume. The results from positron annihilation spectroscopes indicated that increasing the weight percentage of alumina reduces the size, shape, and homogeneity of free volume structure.
期刊介绍：
Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology.
As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including:
polymer synthesis;
polymer reactions;
polymerization kinetics;
polymer physics;
morphology;
structure-property relationships;
polymer analysis and characterization;
physical and mechanical properties;
electrical and optical properties;
polymer processing and rheology;
application of polymers;
supramolecular science of polymers;
polymer composites.
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