Journal
JOURNAL OF COMPOSITE MATERIALS
Volume 50, Issue 22, Pages 3105-3116Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998315615653
Keywords
Nanoclay; tensile properties; HDPE; nanocomposite; flexural properties; melt mixing method; industrial-scale; thermal properties; scratch test
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Funding
- Selcuk University Scientific Research Projects [1310102]
- Selcuk University
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The main aim of this paper is to introduce mechanical, thermal and surface properties of produced industrially HDPE-based nanocomposites. For this purpose, 1.0, 2.0, 3.0, 4.0 and 5.0wt.% loading of nanoclay-reinforced HDPE nanocomposites made from the HDPE matrix were prepared by the melt mixing method using a compounder system, which consist of industrial banbury mixer, single screw extruder and granule cutting. The effect of nanoclay on mechanical, thermal and surface properties of nanoclay/HDPE nanocomposites was investigated. The tensile and flexural strength of nanoclay/HDPE nanocomposite increased by about 5% and 7%, respectively, with addition of 1.0wt.% nanoclay. But then it decreased slightly as the nanoclay content increased to 5.0wt.%. The tensile modulus and tensile elongation were decreased with the addition of 1.0wt.% nanoclay, but did not increase further as more nanoclay was added. The flexural modulus of HDPE was significantly improved after (from 1.0wt.% up to 5.0wt.%) addition of nanoclay. It was found that the scratch resistance of nanoclay/HDPE nanocomposite improved with addition of the nanoclay by SEM examination. Density, melting flow index (MFI), differential scanning colorimetry (DSC), and vicat softening temperature (VICAT) were used to characterize the physical and thermal properties of the nanocomposites. The X-ray diffraction (XRD), the Fourier transform infrared spectrophotometry (FTIR), and the scanning electron microscopy (SEM) were used to analyze the structural characteristics of the nanocomposites. It is concluded that the addition of the nanoclay in HDPE has significantly influenced the mechanical, thermal, and surface properties of the nanocomposites.
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