Influences of aminosilanization of halloysite nanotubes on the mechanical properties of polyamide-6 nanocomposites

Date

2014-07-01

Author

Erdogan, Ali Riza
Kaygusuz, Ilker
Kaynak, Cevdet

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The main purpose of this study was to explore effects of silanization of halloysite nanotubes (HNT) on the mechanical properties of polyamide 6 by using aminopropyltriethoxysilane. Effects of two silanization parameters; initial silane concentration and pH of reaction solution were also investigated. Nanocomposites were compounded via melt mixing method in a twin-screw extruder, while specimens were shaped by injection molding. Formation of aminosilane molecules on the edges and defected surfaces of HNTs were revealed mainly by Fourier-Transform infrared spectroscopy. Scanning electron microscopy and mechanical tests indicated that even the use of unmodified HNTs could be homogenously distributed in the matrix leading to increased mechanical properties as much as more than 30%. Aminosilanization of HNTs with optimum silanization parameters resulted in effective amounts of AlOSi bridging bonds between the matrix and reinforcement, making composite strengthening mechanisms more operative. In this condition, increases in the mechanical properties were as much as more than 50%. POLYM. COMPOS., 35:1350-1361, 2014. (c) 2013 Society of Plastics Engineers

Subject Keywords

Materials Chemistry, General Chemistry, Polymers and Plastics, Ceramics and Composites

URI

https://hdl.handle.net/11511/39277

Journal

POLYMER COMPOSITES

DOI

https://doi.org/10.1002/pc.22787

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

A. R. Erdogan, I. Kaygusuz, and C. Kaynak, “Influences of aminosilanization of halloysite nanotubes on the mechanical properties of polyamide-6 nanocomposites,” POLYMER COMPOSITES, pp. 1350–1361, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39277.