The Influence of Brominated UHMWPE on the Tribological Characteristics and Wear of Polymeric Nanocomposites Based on UHMWPE and Nanoparticles

Borisova, R. V.; Никифоров, Л. А.; Спиридонов, А. М.; Охлопкова, Т. А.; Охлопкова, А. А.; Koryakina, N. S.

doi:10.3103/s1068366619010045

Cited by 11 publications

(3 citation statements)

References 7 publications

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“…Filling modification is a simple and effective way to enhance the wear resistance of UHMWPE plate. The fillers used in wear resistance modification include particles and micro‐fibers that usually show higher hardness than UHMWPE (such as cubic BN, 5 Si 3 N 4 , B 4 C, SiC, 6 AlN 7,8 or carbon fiber 9,10 ) or excellent lubrication (such as graphite, MoS 2, 11 polytetrafluoroethylene, 12 or montmorillonite 13 ). The wear resistance strengthening mechanism of UHMWPE filling modification mainly lies in improving the hardness of UHMWPE or easy constructing a continuous transfer film and decreasing the coefficient of friction in the process of friction 14 …”

Section: Introductionmentioning

confidence: 99%

Enhanced wear resistance of ultra‐high molecular weight polyethylene fibers by modified‐graphite oxide

Wang

Quan

et al. 2021

J of Applied Polymer Sci

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A simple and feasible method to enhance the wear resistance of ultra-high molecular weight polyethylene (UHMWPE) fibers was reported. The graphite oxide (GO) prepared using improved Hummer's method was surface modified with hexadecylamine to improve its compatibility with UHMWPE. Combined with well-dispersion of modified-GO (m-GO) in dichloromethane and the fact that the viscosity of UHMWPE suspension can be decreased by dichloromethane, the well dispersed m-GO/dichloromethane was added into UHMWPE suspension to improve m-GO dispersion in UHMWPE fibers. Finally, UHMWPE fibers with different m-GO concentration were prepared using gel spinning technology. The effect of m-GO concentration on the structure and properties of modified UHMWPE fibers were investigated. The results indicated that the melting temperature and crystallinity of m-GO modified UHMWPE fibers increased with increasing of m-GO concentration, while the fiber's crystal sizes and orientation increased, thus the tensile strength of m-GO modified UHMWPE fibers remained almost undamaged. The introduction of m-GO is beneficial to the formation of smooth transfer film on fiber's surface, which enhanced the self-lubrication of UHMWPE fibers. Compared with pure UHMWPE fiber, the UHMWPE fiber containing 1.5 wt% m-GO had enhanced wear resistance by 55.4% and still maintained high tensile strength of 29.98 cN dtex −1 .

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Section: Introductionmentioning

confidence: 99%

Enhanced wear resistance of ultra‐high molecular weight polyethylene fibers by modified‐graphite oxide

Wang

Quan

et al. 2021

J of Applied Polymer Sci

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“…Thus, the main factors determining the properties of polymer composites are the types of fillers, their content and the compatibility between fillers, and the polymer matrix [9,10]. In many cases, both physicochemical and mechanical bonding work simultaneously to increase the degree of compatibility between fillers and the polymer matrix [11][12][13][14][15]. In addition, to obtain polymer composites with an improved complex of performance properties, it is necessary to select components that have a complex effect on the polymer matrix [16,17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nano-CuO and 2-Mercaptobenzothiazole on the Tribological Properties of Ultra-High Molecular Weight Polyethylene

Vasilev,

Dyakonov,

Danilova

et al. 2024

Lubricants

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In this study, the tribological properties of nanocomposites based on ultra-high molecular weight polyethylene (UHMWPE) filled with nano-CuO and 2-mercaptobenzothiazole (CuO/MBT) in mass ratios of 1:1 and 2:1 were investigated. In the supramolecular structure of UHMWPE nanocomposites, spherulites of several hundred micrometers in size are formed. The density of UHMWPE nanocomposites slightly increases relative to the pure polymer, reaching a maximum at 2 wt.% CuO/MBT in both ratios. The Shore D hardness and compressive stress of the UHMWPE nanocomposites showed an improvement of 5–6% and 23–35%, respectively. The wear resistance and coefficient of friction of UHMWPE nanocomposites were tested using a pin-on-disk configuration under dry friction conditions on #45 steel and on P320 sandpaper. It was shown that the wear rate of UHMWPE nanocomposites filled with 2 wt.% CuO/MBT decreased by ~3.2 times compared to the pure polymer, and the coefficient of friction remained at the level of the polymer matrix. Abrasive wear showed an improvement in UHMWPE nanocomposites filled with 1 wt.% CuO/MBT compared to the polymer matrix and other samples. The worn surfaces of the polymer composites after dry friction were examined by scanning electron microscopy and IR spectroscopy. The formation of secondary structures in the form of tribofilms that protect the material from wear was demonstrated. Due to this, the wear mechanism of UHMWPE nanocomposites is transformed from adhesive to fatigue wear. The developed materials, due to improved mechanical and tribological properties, can be used as parts in friction units of machines and equipment.

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“…To achieve the desired tribological/mechanical properties and other functions, various types of fillers are introduced into the polymer matrix (fibrous reinforcing fillers, finely divided fillers, chopped glass fiber, metal oxides, etc.) [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. Matrix fillers have an advantage over a mixture of fillers such as fibers, since they do not require alignment and orientation in composites, which significantly affects the wear resistance of PCM and directed loading when slipping [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

UHMWPE/CaSiO3 Nanocomposite: Mechanical and Tribological Properties

et al. 2021

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This paper studied the effect of additives of 0.5–20 wt.% synthetic CaSiO3 wollastonite on the thermodynamic, mechanical, and tribological characteristics and structure of polymer composite materials (PCM) based on ultra-high-molecular weight polyethylene (UHMWPE). Using thermogravimetric analysis, X-ray fluorescence, scanning electron microscope, and laser light diffraction methods, it was shown that autoclave synthesis in the multicomponent system CaSO4·2H2O–SiO2·nH2O–KOH–H2O allows one to obtain neeindle-shaped nanosized CaSiO3 particles. It was shown that synthetic wollastonite is an effective filler of UHMWPE, which can significantly increase the deformation-strength and tribological characteristics of PCM. The active participation of wollastonite in tribochemical reactions occurring during friction of PCM by infrared spectroscopy was detected: new peaks related to oxygen-containing functional groups (hydroxyl and carbonyl) appeared. The developed UHMWPE/CaSiO3 materials have high wear resistance and can be used as triboengineering materials.

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The Influence of Brominated UHMWPE on the Tribological Characteristics and Wear of Polymeric Nanocomposites Based on UHMWPE and Nanoparticles

Cited by 11 publications

References 7 publications

Enhanced wear resistance of ultra‐high molecular weight polyethylene fibers by modified‐graphite oxide

Enhanced wear resistance of ultra‐high molecular weight polyethylene fibers by modified‐graphite oxide

Effect of Nano-CuO and 2-Mercaptobenzothiazole on the Tribological Properties of Ultra-High Molecular Weight Polyethylene

UHMWPE/CaSiO3 Nanocomposite: Mechanical and Tribological Properties

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