Tribological properties of polyethylene based composites with fillers on iron based

Zhansakova, K. S.; Eremin, E. N.; Russkikh, G. S.

doi:10.1088/1742-6596/1260/6/062028

Cited by 1 publication

(1 citation statement)

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“…In the literature, little is discussed on the effects of metallic particles such as copper and copper alloys on the tribological behavior of organic matrixes [22][23][24][25][26][27][28]. Due to their low friction coefficient and excellent anti-wear abilities, copper and copper alloy powders have been added as a lubricating phase in an organic material and formed a typical microcomposite structure (organic matrix/metal powder) that not only enhanced the hardness and the mechanical properties but also provided a solid lubricating effect.…”

Section: Introductionmentioning

confidence: 99%

Microstructural, Mechanical and Tribological Behaviors of Cu/LLDPE-Based Composite Coatings for Lightweight Applications

Ben Difallah,

Bouaziz,

Horovistiz

et al. 2024

Lubricants

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This research work focuses on the development and analysis of copper-filled linear low-density polyethylene (LLDPE) coatings deposited on LLDPE substrate via a thermocompression process. A dry mechanical mixing technique is employed to mix the copper–LLDPE powders. This relevant technology aims to develop new solid lubricating layered composite coatings without a negative environmental impact. Four different materials of the coatings are considered, i.e., LLDPE + 2 wt.% Cu, LLDPE + 6 wt.% Cu, LLDPE + 10 wt.% Cu and LLDPE + 20 wt.% Cu. The microstructural characterizations indicate a good degree of dispersion and adhesion between the continuous and dispersed phases at 20 wt.% Cu coatings. The mechanical properties of the pure polymer and the fully filled composite materials are investigated experimentally using tensile tests and Micro-Vickers hardness. The stiffness, hardness and mechanical strength of the composites are enhanced. Friction tests are also carried out via a linear reciprocating sliding tribometer. The incorporation of copper powder has a significant improvement on the friction and wear properties of the developed coatings. Higher copper powder loading provides a lower friction coefficient and wear volume loss. The best tribological performances are obtained with the LLDPE + 20 wt.% Cu coating. The wear mechanism of the LLDPE substrate is severe adhesive wear, and it becomes mild abrasive wear in case of the 20 wt.% Cu coating.

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