Structure and properties of composites based on ultrahigh-molecular polyethylene and thermally expanded graphite

Гоголева, О. В.; Попов, С. Н.; Петрова, П. Н.; Охлопкова, А. А.

doi:10.3103/s1068798x14120120

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Jin et al made the contrastive study in the friction and wear characteristics of phenolic resin enhanced with EG and natural graphite, and experimental results confirmed the critical role of EG in the production of stable contact interface to decrease the wear rate 23 . Gogoleva et al examined the tribological performance of ultrahigh‐molecular polyethylene/EG composite and the relatively low‐friction coefficient as well as the wear rate of this composite had been recognized 24 . In addition, Struchkova et al explored the application possibility of polytetrafluoroethylene composites modified with EG particles in tribology engineering because of the eminent mass abrasion resistance 25 .…”

Section: Introductionmentioning

confidence: 98%

“…23 Gogoleva et al examined the tribological performance of ultrahigh-molecular polyethylene/EG composite and the relatively low-friction coefficient as well as the wear rate of this composite had been recognized. 24 In addition, Struchkova et al explored the application possibility of polytetrafluoroethylene composites modified with EG particles in tribology engineering because of the eminent mass abrasion resistance. 25 Unfortunately, the intrinsic correlation between EG particles and the tribological characteristics of PI and PES composites at evaluated temperature remains as an acknowledged problem, let alone the effects of filler additions and vertical loads on the elevated-temperature tribological behaviors of polymer blends.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Thermomechanical and tribological properties of polyimide and polyethersulfone blends reinforced with expanded graphite particles at various elevated temperatures

Xue

Yan

Chen

2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

Expanded graphite (EG) particles were introduced into the polyimide (PI) and polyethersulfone (PES) blend to enhance the dynamic thermomechanical and tribological performances of this polymer composite at evaluated temperatures ranging from room temperature to 250°C. The influences of EG dosage, evaluated temperature and vertical loads on the high‐temperature tribological behaviors, worn surface morphologies and wear mechanisms of EG/PES/PI composites were analyzed. Experimental results suggest that tensile strength, dynamic storage modulus, glass transition temperature as well as thermal stability of EG/PES/PI composites are superior to those of the PES/PI blend and they are raised as the EG additions increase. Whether at room temperature or at the high temperature of 250°C, the EG/PES/PI composites display the better friction‐reducing and abrasion resistant performances than the PES/PI blend. Among all these composites, the 7.0 wt% EG/PES/PI composite demonstrates the best friction and wear properties (0.23, 5.68 × 10−16 m3/[N·m]) at evaluated temperatures. The noticeable improvement in abrasive property of EG/PES/PI composites at high‐evaluated temperatures stems from extraordinary porous microstructures and outstanding lubrication characteristics of EG particles as well as the formation of uniform self‐lubricating polymer tribofilms. This composite as antifriction and wear‐resistant materials possesses potential applications in high‐temperature engineering tribology, such as rolling bearing retainer, and so forth.

show abstract

Section: Introductionmentioning

confidence: 98%

mentioning

confidence: 99%

Thermomechanical and tribological properties of polyimide and polyethersulfone blends reinforced with expanded graphite particles at various elevated temperatures

Xue

Yan

Chen

2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

Development of Composite Materials Based on Ultrahigh-Molecular Weight Polyethylene and Thermally Expanded Graphite

Гоголева

2019

MSF

View full text Add to dashboard Cite

In connection with the huge range of ultra-high molecular weight polyethylene (UHMWPE) grades, the choice of a particular brand is a difficult task. Rational choice of the polymer matrix is a necessary condition for the increase in reliability and service life of products, and consequently, for the efficiency of using these composite materials. The given article presents the results of tests on stress-strain properties of GUR-2122, 4113, 4120, 4130, 4150, 4170 and GHR-8020 ultra-high molecular weight polyethylene grades. GUR-4150 UHMWPE is chosen as the polymer matrix on the base of the test results. It is shown that the friction coefficient of the polymer composite material is reduced even with the modification of UHMWPE with nanodispersed thermally expanded graphite (TEG) in amount of 0.001-0.5 mass%. It is established that the rate of mass wear decreases by 3-4.3 while maintaining the stress-strain properties of the composites at the level of the initial UHMWPE. Polymer composite materials with an improved set of performance indicators are developed.

show abstract

Structure and properties of composites based on ultrahigh-molecular polyethylene and thermally expanded graphite

Cited by 2 publications

References 0 publications

Thermomechanical and tribological properties of polyimide and polyethersulfone blends reinforced with expanded graphite particles at various elevated temperatures

Thermomechanical and tribological properties of polyimide and polyethersulfone blends reinforced with expanded graphite particles at various elevated temperatures

Development of Composite Materials Based on Ultrahigh-Molecular Weight Polyethylene and Thermally Expanded Graphite

Contact Info

Product

Resources

About