Effect of simple shear induced orientation process on the morphology and properties of polyolefin/graphite nanoplates composites

Beloshenko, V.A. and Білошенко, В.О. and Белошенко, В.А. and Voznyak, А.V. and Возняк, А.В. and Возняк, А.В. and Voznyak, Yu.V. and Возняк, Ю.В. and Возняк, Ю.В. and Novokshonova, L.A. and Новокшонова, Л.А. and Новокшонова, Л.А. and Grinyov, V.G. and Гриньов, В.Г. and Гринев, В.Г. (2017) Effect of simple shear induced orientation process on the morphology and properties of polyolefin/graphite nanoplates composites. Composites Science and Technology, 139. pp. 47-56.

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Abstract

In this work the advantages of the reinforcement effect induced by solid state simple shear were demonstrated on the example of polyolefin/graphite nanoplates (GnP) composites. It was shown that the simple shear promotes significant changes in the crystal structure and the morphology of the GnP and the polymer matrix: extensive exfoliation of the GnP agglomerates into the layers consisting of several graphite plates, GnP crystal and crystal lamellae orientation. The oriented nanocomposites were characterized by a reduced porosity and improved adhesion between the GnP and the polymer matrix. An increase in Young modulus, yield stress and strain at break was observed, being accompanied by a substantial decrease in the thermal expansion coefficient of the GnPs-based nanocomposites. The effects depend on the type of the polymer, concentration and morphological characteristics of GnP.

Item Type: Article
Uncontrolled Keywords: Nanocomposites, microstructures, plastic deformation, extrusion
Subjects: Research materials > Journal articles
Research materials > Journal articles > Natural Sciences
Depositing User: Адміністратор репозиторію
Date Deposited: 22 Oct 2018 09:56
Last Modified: 22 Oct 2018 09:56
URI: http://elibrary.donnuet.edu.ua/id/eprint/987

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