Preparation and Tribological Performance of Silica/Ethylene-Octene Copolymer Nanocomposites

Abstract:

The maleic anhydride-grafted ethylene-octene copolymer (POE-g-MAH) and 2, 3-epoxy propoxy propyltrimethoxysilicane (KH-560) modified nano-silica particles/ POE nanocomposites were fabricated by solution coprecipitation. Tribological behaviors of these nanocomposites were investigated using a pin-on-disk friction and wear tester under dry friction condition, and worn surfaces were studied by scan electron microscope (SEM) and color 3D laser scanning microscope, respectively. The results indicated that the addition of the low inclusion (more than 10 wt%) of nano-silica particles could improve the reducing-friction and anti-wear abilities of the POE matrix composites, and modified nano-silica as the filler are superior to nano-silica in terms of the ability of decreasing friction coefficient and wear rate of the POE polymer materials. In both cases, appropriate treatments could effectively improve the mechanical and tribological properties of the POE matrix composites due to the enhanced nanosilicas-matrix interfacial bonding.

• Periodical: Applied Mechanics and Materials (Volume 606)
• Pages: 41-46
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.606.41
• Online since: August 2014
• Authors: Ke Sheng Cao*, Song Tian Li, Yong Hua Cheng, Xiao Liang Guo
• Keywords: Ethylene-Octene Copolymer, Friction, Nanocomposite, Nano-Silica, Surface Modification, Wear

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