Nanocomposites Based on Polytetrafluoroethylene and Ultrahigh Molecular Weight Polyethylene: A Brief Review

Kirillina, Iu. V.; Никифоров, Л. А.; Охлопкова, А. А.; Sleptsova, S. A.; Yoon, Choon Sik; Cho, Jin‐Ho

doi:10.5012/bkcs.2014.35.12.3411

Cited by 18 publications

(11 citation statements)

References 16 publications

(20 reference statements)

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“…Significant increase of strength and elongation at break was found for all composites, but with increase of filler content mechanical properties deteriorate. Such changes of properties depend on filler content as usual for nanocomposites [3,10]. This is due to the high surface energy of NP which increases agglomeration tendency with increase of filler content.…”

Section: Ultrasound Processing Of Components During Mixing In Liquid mentioning

confidence: 91%

“…The mechanical properties of UHMWPE filled by mechanically activated kaolinite in amounts of 0.5-5.0 wt% have been evaluated [3]. Strength increased by 15% and elongation at break increased by 20% in comparison with the initial UHMWPE.…”

Section: Mechanical Activation Of Layered Silicates With Surfactantsmentioning

confidence: 99%

“…Surfactant can be used as a surface modifier due to long hydrophobic hydrocarbon chain and hydrophilic positively charged end. Composites prepared using the surfactant revealed a 17% increase in strength and 33% increase in elongation at break (Table 1) [3]. Enhanced mechanical properties can be explained by an increase in the adhesive interaction between kaolinite and UHMWPE in the interfacial layers [1,3].…”

Section: Mechanical Activation Of Layered Silicates With Surfactantsmentioning

confidence: 99%

“…Composites prepared using the surfactant revealed a 17% increase in strength and 33% increase in elongation at break (Table 1) [3]. Enhanced mechanical properties can be explained by an increase in the adhesive interaction between kaolinite and UHMWPE in the interfacial layers [1,3]. Also, surfactants can support the disintegration of the agglomerates of particles with high surface energy [1].…”

Section: Mechanical Activation Of Layered Silicates With Surfactantsmentioning

confidence: 99%

“…One of them is use of frost resistant polymer nanocomposites (PNC). Recently, ultra-high-molecular-weight polyethylene (UHMWPE) has attracted attention of researchers as a perspective polymer for wide application fields [1][2][3]. Modification of UHMWPE using different types of filler can lead to significant enhancement of performance properties.…”

Section: Introductionmentioning

confidence: 99%

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Polymer Nanocomposites Exploited Under The Arctic Conditions

Охлопкова¹,

Никифоров²,

Охлопкова³

et al. 2016

Kms

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Several technologies of the preparation of nanocomposites based on ultra-highmolecular-weight polyethylene were developed. The first technology is based on mechanical activation of layered silicates with surfactant before addition into polymer matrix. The second technology represents mixing of ultra-high-molecular-weight polyethylene with nanoparticles by joint mechanical activation in a planetary mill. The third technology is based on mixing of ultra-high-molecular-weight polyethylene with nanoparticles in liquid media under continuous ultrasonic treatment. Common features of these technologies are reaching of filler uniform distribution in a polymer matrix and significant improvement in the mechanical properties. Also, supramolecular structure of the composites was studied.

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Section: Ultrasound Processing Of Components During Mixing In Liquid mentioning

confidence: 91%

Section: Mechanical Activation Of Layered Silicates With Surfactantsmentioning

confidence: 99%

Section: Mechanical Activation Of Layered Silicates With Surfactantsmentioning

confidence: 99%

Section: Mechanical Activation Of Layered Silicates With Surfactantsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Polymer Nanocomposites Exploited Under The Arctic Conditions

Охлопкова¹,

Никифоров²,

Охлопкова³

et al. 2016

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The influence of several silicates on the fretting behavior of UHMWPE composites

Meng

Wang

Xin

et al. 2020

J of Applied Polymer Sci

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Five kinds of silicates (attapulgite, kaolin, montnorillonite, synthetic mica, and talc) reinforced ultra‐high molecular weight polyethylene (UHMWPE) composites were prepared. The fretting performance of the composites was investigated using an oscillating reciprocating friction and wear tester in a ball‐on‐plate mode. The thermodynamic property and crystallinity of the composites were evaluated, and the worn morphology was also observed. Result shows that the heat‐resistance and the crystallinity of the composites are generally improved. The friction coefficient and mass loss of the composites reduced than those of the neat UHMWPE. Thereinto, the attapulgite/UHMWPE composite shows the best fretting resistance performance. The heat resistance of composites increases due to the reinforcement of silicates. Meantime, the friction load can be distributed by the filler in the matrix. Moreover, the different fretting resistance performance of the composites is due to the different dispersion degree and the interfacial bonding force between the fillers and the UHMWPE matrix.

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Supramolecular Structure and Mechanical Characteristics of Ultrahigh‐Molecular‐Weight Polyethylene–Inorganic Nanoparticle Nanocomposites

Охлопкова

Borisova

Никифоров

et al. 2016

Bulletin Korean Chem Soc

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We investigated the mechanical properties and structure of polymeric nanocomposites (PNCs) with an ultrahigh-molecular-weight polyethylene (UHMWPE) matrix and aluminum and silicon oxide and nitride nanoparticle (NP) fillers. Mixing with a paddle mixer or by joint mechanical activation in a planetary mill was used for the PNC preparation. Joint mechanical activation afforded PNCs with better mechanical properties than paddle mixing. Scanning electron microscopy suggested that the poorer mechanical properties can be attributed to the disordered regions and imperfect spherulites in the PNC supramolecular structure arising from paddle mixing. The better mechanical properties observed with joint mechanical activation may derive from the uniform NP distribution in the polymer matrix and absence of disordered regions.Keywords: Ultrahigh-molecular-weight polyethylene, Nanoparticle, Polymer nanocomposite, Mechanical characteristics, Supramolecular structure IntroductionIn recent years, the design and controlled fabrication of nanostructured materials with defined physicochemical properties have gained considerable interest. 1 Nanocomposites based on polymers and inorganic nanoparticles (NPs) have, in particular, demonstrated significant performance in terms of mechanical properties, fire resistance, gas permeability, and electrical conductivity.1 Conventional sealing, structural, and antifriction materials usually undergo degradation under extreme conditions, such as very low temperatures.2 Therefore, materials for application in arctic environments require high strength as well as frost, wear, and corrosion resistance. Ultrahigh-molecular-weight polyethylene (UHMWPE) is known to retain its high mechanical and tribotechnical properties at low temperatures, including cryogenic conditions, 2,4 and under high loading. 5 UHMWPE also shows excellent self-lubrication properties, high-impact strength, and excellent corrosion and frost resistance in comparison with other polymers. High-density UHMWPE provides good stiffness characteristics and abrasion and chemical resistance. 5 In addition to the intrinsic characteristics of UHMWPE, its mechanical and tribotechnical properties have been improved by the addition of NP fillers to the polymer. 6 Briscoe et al. demonstrated that the addition of PbO and CuO fillers to high-density polyethylene reduced wear because of the formation of a strong transfer film.7 By manufacturing composites of UHMWPE and ceramics such as Al 2 O 3 , ZrO 2 , and Si 3 N 4 , biocompatible and wear-and scratch-resistant hybrid materials were successfully fabricated recently and found applications in orthopedics. 8,9 Metallic silver NPs in UHMWPE demonstrated good wear and tribochemical properties. 10 We have reported different techniques to modify polymer nanocomposites (PNCs) 2,11 to achieve good tribotechnical and mechanical properties. It is to be noted that the uniform distribution of NPs in the PNCs is critical to achieving high tribotechnical and mechanical properties.12 Here, we report joint mechanical ...

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Nanocomposites Based on Polytetrafluoroethylene and Ultrahigh Molecular Weight Polyethylene: A Brief Review

Cited by 18 publications

References 16 publications

Polymer Nanocomposites Exploited Under The Arctic Conditions

Polymer Nanocomposites Exploited Under The Arctic Conditions

The influence of several silicates on the fretting behavior of UHMWPE composites

Supramolecular Structure and Mechanical Characteristics of Ultrahigh‐Molecular‐Weight Polyethylene–Inorganic Nanoparticle Nanocomposites

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