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Effects of SiO 2 and Al 2 O 3 nanofillers on polyethylene properties
Author(s) -
Panaitescu Denis,
Ciuprina Florin,
Iorga Michaela,
Frone Adriana,
Radovici Constantin,
Ghiurea Marius,
Sever Serban,
Plesa Ilona
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.34297
Subject(s) - materials science , polyethylene , polymer , nanocomposite , composite material , nanoparticle , scanning electron microscope , nanostructure , dielectric , dispersion (optics) , polymer nanocomposite , nanotechnology , optics , physics , optoelectronics
Abstract Polymers filled with inorganic nanoparticles have become interesting materials as dielectrics because of their improved mechanical and electrical properties compared with the unfilled polymers and with polymer microcomposites. These improvements are mainly due to the large surface area of nanoparticles and new polymer–nanofiller interface characteristics. In the present work, polyethylene nanocomposites with SiO 2 and Al 2 O 3 nanoparticles were prepared by melt mixing. Mechanical and electrical properties of these composites were determined and morphological aspects were revealed by scanning electron microscopy, wide‐angle X‐ray diffraction, and atomic force microscopy. The effect of nanostructure and the importance of nanofiller dispersion were analyzed in connection with mechanical and electrical properties. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011