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- Title
Influence of the Polymeric Matrix and Thermal Treatment on the Properties of Polyolefin-Graphite Nanosheets Nanocomposites.
- Authors
González, Darío M.; Quijada, Raúl; Yazdani‐Pedram, Mehrdad; Benavente, Rosario; Galland, Griselda B.; Milani, Marcéo A.
- Abstract
Homo and copolymers of metallocenic poly(propylene) with 1-hexene and 1-octadecene are used to prepare nanocomposites via melt mixing by using graphite nanosheets (GNSs) as filler. Different amounts of GNSs are used in order to study the influence of the filler on the thermal, mechanical, and electrical properties of nanocomposites. Significant changes have been observed in the crystallization temperature ( Tc) of the nanocomposites. Thermogravimetric analysis shows improvement in thermal stability. Young's modulus and elongation at break of the nanocomposites are depended on the type of the matrix and the amount of GNSs. Materials with high flexibility are obtained in the cases of matrices based on copolymers even at high filler loading. Nanocomposites have become a semiconductor material reaching conductivity of 10−4 S cm−1. Two different thermal treatments have been applied in the preparation of the films by compression molding. X-ray diffraction analysis shows the existence of polymorphism according to the thermal treatment applied.
- Subjects
COPOLYMERS; PROPENE; CRYSTALLIZATION; NANOCOMPOSITE materials; X-ray diffraction
- Publication
Macromolecular Materials & Engineering, 2016, Vol 301, Issue 12, p1503
- ISSN
1438-7492
- Publication type
Article
- DOI
10.1002/mame.201600277