Creep Resistance of Polyethylene-based Nanocomposites

A. S. Alghamdi

Abstract


The purpose of this work is to investigate the effects of carbon black (CB), carbon nanotubes (CNTs) and nanoclay sheets addition on the creep behavior of polyethylene-based nanocomposites synthesized with an in-house processing method. A blend of 75 wt.% UHMWPE and 25 wt.% HDPE, abbreviated to U75H25, was used as the hybrid PE matrix to accommodate the nanofillers. A 0.5 wt.% of CB, CNTs or nanosheets clay was embedded separately into the blend matrix in order to improve the creep resistance. The scanning electron microscope (SEM) and transmission electron microscope showed that the nanofillers were homogeneously dispersed in the U75H25. The addition of just 0.5 wt.% nanoclay resulted in a significant increase in the creep resistance of the polyethylene blend. Conversely, the addition of CB or CNTs caused a reduction in the creep resistance. The embedding of CNTs into the matrix resulted in creep behavior almost close to the creep behavior of pure UHMWPE. The Burger’s model was employed to understand the effect of the nanoparticle addition on the creep mechanism.


Keywords


UHMWPE; HDPE; polymer; creep; nanocomposite; polyethylene

Full Text:

PDF

References


P. N. Khanam, M. A. A. Maadeed, “Processing and characterization of polyethylene-based composites”, Advanced Manufacturing: Polymer & Composites Science, Vol. 1, No. 2, pp. 63-79, 2015

A. Sari, “Form-stable paraffin/high density polyethylene composites as solid–liquid phase change material for thermal energy storage: preparation and thermal properties”, Energy Conversion and Management, Vol. 45, No. 13–14, pp. 2033–2042, 2004

K. M. Manu, S. Soni, V. R. K. Murthy, M. T. Sebastian, “Ba(Zn1/3Ta2/3)O3 ceramics reinforced high density polyethylene for microwave applications”, Journal of Materials Science: Materials in Electronics, Vol. 24, No. 6, pp. 2098–2105, 2013

T. K. Dey, M. Tripathi, “Thermal properties of silicon powder filled high-density polyethylene composites”, Thermochimica Acta, Vol. 502, No. 1–2, pp. 35–42, 2010

L. Fang, Y. Leng, P. Gao, “Processing of hydroxyapatite reinforced ultrahigh molecular weight polyethylene for biomedical applications”, Biomaterials, Vol. 26, No. 17, pp. 3471–3478, 2005

Q. Zhang, S. Rastogi, D. Chen, D. Lippits, P. J. Lemstra, “Low percolation threshold in single-walled carbon nanotube/high density polyethylene composites prepared by melt processing technique”, Carbon, Vol. 44, No. 4, pp. 778–785, 2006

A. S. Alghamdi, I. A. Ashcroft, M. Song, D. Cai, “Morphology and strain rate effects on heat generation during the plastic deformation of polyethylene/carbon black nanocomposites”, Polymer Testing, Vol. 32, No. 6, pp. 1105–1113, 2013

A. S. Alghamdi, I. A. Ashcroft, M. Song, D. Cai, “Nanoparticle type effects on heat generation during the plastic deformation of polyethylene nanocomposites”, Polymer Testing, Vol. 32, No. 8, pp. 1502–1510, 2013

A. S. Alghamdi, I. A. Ashcroft, M. O. Song, “Creep resistance of novel polyethylene/carbon black nanocomposites”, International Journal of Materials Science and Engineering, Vol. 2, No. 1, pp. 1-5, 2014

A. S. Alghamdi, I. A. Ashcroft, M. O. Song, “High temperature effects on the nanoindentation behaviour of polyethylene-based nanocomposites”, International Journal of Computational Methods and Experimental Measurements, Vol. 3, No. 2, pp. 79–88, 2015

C. V. Gorwade, A. S. Alghamdi, I. A. Ashcroft, V. V. Silberschmidt, M. O. Song, “Finite Element Analysis of the High Strain Rate Testing of Polymeric Materials”, Journal of Physics: Conference Series, Vol. 382, ArticleID 012043, 2012

A. S. Alghamdi, “Nanoparticle type effects on the scratch resistance of polyethylene-based nanocomposites”, International Journal of Advanced and Applied Sciences, Vol. 4, No. 4, pp. 1-6, 2017

D. R. Paul, L. M. Robeson, “Polymer nanotechnology: Nanocomposites”, Polymer, Vol. 49, No. 15, pp. 3187-3204, 2008

M. Rahmat, P. Hubert, “Carbon nanotube-polymer interactions in nanocomposites: A review”, Composites Science and Technology, Vol. 72, No. 1, pp. 72-84, 2011

X. Jiang, L. T. Drzal, “Multifunctional High-Density Polyethylene Nanocomposites Produced by Incorporation of Exfoliated Graphene Nanoplatelets 2: Crystallization, Thermal and Electrical Properties”, Polymer Composites, Vol. 33, No.4, pp. 636-642, 2012

A. S. Alghamdi, “Synthesis and mechanical characterisation of high density polyethylene/graphene nanocomposites”, Engineering, Technology & Applied Science Research, Vol. 8, No. 2, pp. 2814-2817, 2018

S. Humbert, O. Lame, G. Vigier, “Polyethylene yielding behaviour: What is behind the correlation between yield stress and crystallinity?”, Polymer, Vol. 50, No. 15, pp. 3755-3761, 2009

W. N. Findley, J. S. Lai, K. Onaran, Creep and Relaxation of Nonlinear Viscoelastic Materials, Dover Publications, 1989




eISSN: 1792-8036     pISSN: 2241-4487