Volume 28, Issue 12 pp. 1794-1803
Research article

Microstructure, thermal stability, and mechanical properties of modified polycarbonate with polyolefin and silica nanoparticles

Iman Taraghi

Corresponding Author

Iman Taraghi

Department of Mechanical Engineering, Semnan University, Semnan, 35131-19111 Iran

Institute of Material Science and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Avenue 19, PL70310 Poland

Correspondence to: Iman Taraghi, Department of Mechanical Engineering, Semnan University, Semnan, 35131-19111, Iran.

E-mail: [email protected], [email protected], [email protected]

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Abdolhossein Fereidoon

Abdolhossein Fereidoon

Department of Mechanical Engineering, Semnan University, Semnan, 35131-19111 Iran

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Sandra Paszkiewicz

Sandra Paszkiewicz

Institute of Material Science and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Avenue 19, PL70310 Poland

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Anna Szymczyk

Anna Szymczyk

Institute of Physics, West Pomeranian University of Technology, Szczecin, Piastow Avenue 48, PL70311 Poland

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Renata Chylinska

Renata Chylinska

Institute of Material Science and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Avenue 19, PL70310 Poland

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Agnieszka Kochmanska

Agnieszka Kochmanska

Institute of Material Science and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Avenue 19, PL70310 Poland

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Zbigniew Roslaniec

Zbigniew Roslaniec

Institute of Material Science and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Avenue 19, PL70310 Poland

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First published: 03 May 2017
Citations: 8

Abstract

In this manuscript, the supramolecular structure and dynamic mechanical thermal behavior of the polycarbonate (PC)/ethylene propylene copolymer (EPC)/silica (SiO2) nanocomposites (NCs) have been studied. The morphological analysis of the fractured Izod impact surfaces revealed the mechanism of energy absorption for the elastomeric particle in front of the crack growth. The cracks growth and deformation of voids around the EPC phase are the main factors for energy absorption during the notched-Izod impact test. The presence of the SiO2 nanoparticles (NPs) in the PC phase causes the increase in the values of the impact strength for the NCs specimens. No new peaks and bonds were observed in the Fourier transform infrared (FTIR) spectra, and consequently, the phase behavior of the PC/EPC blends did not change significantly upon SiO2 addition. The dynamic mechanical thermal analysis result confirms the existence of two glass transitions temperatures and independence of all components in the system. Examination of the interfacial studies revealed that the SiO2 NPs do not exist at the interface of PC and EPC. In addition, applying SiO2 NPs into the blends improved the storage modulus (E′) and thermal stability of the PC/EPC/SiO2 NCs. Copyright © 2017 John Wiley & Sons, Ltd.

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