Preparation of novel polyimide nanocomposites with high mechanical and tribological performance using covalent modified carbon nanotubes via Friedel-Crafts reaction

Min, Chunying; Liu, Dengdeng; He, Zengbao; Li, Songjun; Zhang, Kan; Huang, Yongbo

doi:10.1016/j.polymer.2018.07.035

Cited by 36 publications

(14 citation statements)

References 24 publications

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“…In the continuous development and research of tribology and nanomaterials, except for the improvement of traditional lubricant additives, many researchers focus on introducing nanomaterials into tribology for exploration [1][2][3][4][5][6][7]. Nanomaterials exhibit better anti-friction and wear resistance performance under more severe conditions, which makes them well-studied and applied in terms of friction [8,9].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Novel CeO2/GO/CNTs Ternary Nanocomposites with Enhanced Tribological Performance

Min

Song

et al. 2019

Applied Sciences

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Increasing demands of multi-functional lubricant materials with well distributed nanoparticles has been generated in the field of oil lubrication. In this study, one-dimensional (1-D) acidified multi-walled carbon nanotubes (CNTs) and two-dimensional (2-D) graphene oxide (GO) sheets were dispersed together under an ultra-sonication condition to form CNTs/GO hybrids and the corresponding CNTs/GO hybrids decorated with uniform zero-dimensional (0-D) cerium oxide (CeO2) nanoparticles were prepared via a facile hydrothermal method. The tribological performance of CeO2/CNTs/GO ternary nanocomposite was systematically investigated using a MS-T3000 ball-on-disk tester. The results demonstrated that CeO2/GO/CNTs nanocomposites can effectively reduce the friction of sliding pairs in paraffin oil. Moreover, the oil with 1 wt% of CeO2/GO/CNTs exhibited the best lubrication properties with the lowest friction coefficient and wear scar diameters (WSD) compared with adding only GO nanosheet, CeO2, and CeO2/CNTs hybrid nanocomposite as lubricant additives. It is concluded that due to the synergistic effect of 0D CeO2, 1D CNTs, and 2D GO during sliding process, a dimensionally mixed CeO2/GO/CNTs nanocomposite exhibits excellent lubricating properties, providing innovative and effective additives for application in the field of lubrication.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Novel CeO2/GO/CNTs Ternary Nanocomposites with Enhanced Tribological Performance

Min

Song

et al. 2019

Applied Sciences

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“…Moreover, higher modulus value noted for hybrid‐fabric‐NWs composites was attributed to the enhancement in interfacial stress transfer and rigidity resulting from ZnO NWs. Meanwhile, the tan δ peak temperature (i.e., the glass‐transition temperature, T g ) of hybrid‐fabric‐NWs composites appeared to slightly increase, compared with pristine hybrid‐fabric composites, indicating that the penetration of stiff NWs into resin matrix restricted the mobility of phenolic chains through interfacial interactions .…”

Section: Resultsmentioning

confidence: 99%

Combined effects of interface modification and nano‐reinforcement via nano‐enhanced interphase in hybrid‐fabric composites for tribological applications

et al. 2019

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Hybrid Nomex/PTFE (Polytetrafluoroethylene) fabric composites have demonstrated sufficient potential in tribological field due to their prominent mechanical and self-lubricating capabilities. However, the poor fabricmatrix interfacial adhesion and weak bonding of transferfilm to counterface are still the bottlenecks for practical applications of these materials. Herein, growth of ZnO nanowires onto the surface of hybrid Nomex/PTFE fabric based on air-plasma treatment was developed, aiming at enhancing the fabric-matrix interfacial performance using a mild hydrothermal method. Mechanical testing showed significant improvement in the interfacial adhesion strength, while retaining the full mechanical strength and flexibility of pristine hybrid-fabric. More importantly, the ZnO nanowires, released onto the interface during sliding process, participated in the tribo-physical actions contributing to the formation of a uniform and tenacious transferfilm. It is thought, therefore, that the ZnO-enhanced interphase has the dual effects of interface modification and nano-reinforcement of transfer-film. As a result, the tribological performance of hybrid-fabric-ZnO nanowires composites presented a considerable enhancement under varied load conditions. POLYM. COMPOS., 40:3383-3392, 2019.

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“…The wear rate K (mm 3 /[Nm]) was determined based on the depth and width of the wear scar of composite films. Detailed calculation formulas are as follows:

V = 2 italicπRbh

K = \frac{V}{Ld}

where R , b , h , L , and d are the radius of sliding wear scar (mm), the width (mm), the depth of the wear scar (mm), the normal load (N), and sliding distance (m) of the wear test, respectively. Three repeated wear tests were carried out on each sample to obtain the average wear rate and friction coefficient.…”

Section: Methodsmentioning

confidence: 99%

High mechanical and tribological performance of polyimide nanocomposite reinforced by fluorinated graphene oxide

Min

Liang

et al. 2019

Polymer Composites

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Novel polyimide/fluorinated graphene oxide (PI/FGO) nanocomposites with outstanding mechanical, thermal, and tribological properties were obtained using FGO nanosheets which were successfully fabricated by simple hydrothermal reaction. FGO exhibited distinguished interface adhesion with PI matrix due to covalent bonds, resulting improved mechanical and wear resistance of PI/FGO nanocomposites. Wherein, PI/FGO‐0.5 nanocomposite demonstrated conspicuous tribological performance accompanied with 33.1% decrease of friction coefficient and 80.8% reduction of wear rate compared with pure PI under dry friction. Notably, PI/FGO nanocomposites manifested better wear resistance under seawater than that under dry friction, illustrating its great potentiality as high wear‐resistant material suitable for ocean environment.

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Preparation of novel polyimide nanocomposites with high mechanical and tribological performance using covalent modified carbon nanotubes via Friedel-Crafts reaction

Cited by 36 publications

References 24 publications

Fabrication of Novel CeO2/GO/CNTs Ternary Nanocomposites with Enhanced Tribological Performance

Fabrication of Novel CeO2/GO/CNTs Ternary Nanocomposites with Enhanced Tribological Performance

Combined effects of interface modification and nano‐reinforcement via nano‐enhanced interphase in hybrid‐fabric composites for tribological applications

High mechanical and tribological performance of polyimide nanocomposite reinforced by fluorinated graphene oxide

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