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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12322

Title: Characterization and processing of High Density Polyethylene/carbon nano-composites
Authors: Fouad, H.
Elleithy, R.
Al-Zahrani, S.M.
Ali, .H. M.A,
Keywords: A. Nanomaterials; C. Extrusion; E. Mechanical
Issue Date: 2011
Publisher: Elsevier B.V.
Citation: Materials and Design: Volume 32, Issue 4, Pages 1974-1980
Abstract: In the present study, different series of High Density Polyethylene (HDPE)/carbon nano-composites were prepared using melt blending in a co-rotating intermeshing twin screw extruder. The morphological, thermal, rheological, viscoelastic, mechanical, and fracture toughness properties of the nano-composites were analyzed. The microscopic examination of the cryogenically fractured surface found a good distribution of carbon nano-particles in the HDPE matrix. The melting temperature was not significantly affected by the addition of nano-carbon. Whereas, the crystallization percentage was slightly affected by adding carbon nano-particles into the matrix. The complex viscosity increased as the percentage of carbon increased. The Dynamic Mechanical Analysis (DMA) showed that the storage modulus increased with increasing the carbon nano-particles ratio and with increasing the testing frequency. The tensile test results showed that with increasing the carbon nano-particles contents, the Young's modulus, yield strength of HDPE nano-composite increased while the strain at fracture decreased. Similarly, the fracture toughness and the strain energy release rate decreased proportional to the carbon content.
URI: http://hdl.handle.net/123456789/12322
ISSN: 02613069
Appears in Collections:College of Engineering

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