The purification and tribological property of the synthetic magnesium silicate hydroxide modified by oleic acid

Gao, Kai; Chang, Qi; Wang, Bin; Zhou, Ningning; Qing, Tao

doi:10.1002/ls.1428

Cited by 19 publications

(13 citation statements)

References 23 publications

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“…The two-dimensional materials mainly include graphene [116], boron nitride [117], MoS 2 [118], and other 2D materials [119][120][121]. The other materials concentrate on metallic or nonmetallic nanoparticles [122,123], metallic or nonmetallic oxides [124,125], and inorganic nanocomposites [126]. Therefore, this section is divided into two parts, namely two-dimensional materials and other dimensional materials.…”

Section: Inorganic Additivementioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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The reach of tribology has expanded in diverse fields and tribology related research activities have seen immense growth during the last decade. This review takes stock of the recent advances in research pertaining to different aspects of tribology within the last 2 to 3 years. Different aspects of tribology that have been reviewed including lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology. This review attempts to highlight recent research and also presents future outlook pertaining to these aspects. It may however be noted that there are limitations of this review. One of the most important of these is that tribology being a highly multidisciplinary field, the research results are widely spread across various disciplines and there can be omissions because of this. Secondly, the topics dealt with in the field of tribology include only some of the salient topics (such as lubrication, wear, surface engineering, biotribology, high temperature tribology, and computational tribology) but there are many more aspects of tribology that have not been covered in this review. Despite these limitations it is hoped that such a review will bring the most recent salient research in focus and will be beneficial for the growing community of tribology researchers.

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Section: Inorganic Additivementioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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“…Chang et al 20 reported that the synthesised MSH can form amorphous DLC films containing SiO x on the surface. Gao et al 18 confirmed that MSH was able to generate a self‐repairing layer containing iron oxides, silicon oxides, graphite, and Fe 3 C in a fourball friction test. However, the microstructure of the self‐repairing layer is rarely directly observed, and its self‐repairing mechanism is still unclear, especially under actual working conditions, which need to be further clarified.…”

Section: Introductionmentioning

confidence: 94%

“…However, except to magnesium silicate hydroxide (MSH,Mg 3 [Si 2 O 5 ](OH) 4 ), natural serpentine also contains different amounts of calcium oxide, aluminium oxide and iron oxide 17,18 . Moreover, the composition and morphology of serpentine in different regions are different.…”

Section: Introductionmentioning

confidence: 99%

Characterisation of self‐repairing layer formed by oleic acid modified magnesium silicate hydroxide

Yuan

Wang

Yang

et al. 2020

Lubrication Science

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Serpentine, whose main component is magnesium silicate hydroxide (MSH), has excellent friction properties. To explore the self‐repair mechanism of pure MSH under natural working conditions, MSH was synthesised by hydrothermal method and modified with oleic acid (OA). The optimal concentration of OA‐MSH was added to the air‐conditioning compressor simulator. The self‐repairing layers were studied by scanning electron microscope, Raman, and transmission electron microscope. The results show that OA‐MSH is well uniformly dispersed in lubricating oil and has significant anti‐friction performance. When the concentration is 1.0 wt%, the friction performance is best. The surface self‐repairing layer is composed of a 1.5 μm thick transition layer and a 20 nm amorphous carbon‐based film under the conditions of air‐conditioning compressors. There are dislocation cells, nanocrystals, and Mn2(Fe2+, Mg)5Si8O22(OH)2 in the transition layer. The formation mechanism of the self‐repairing layer on piston surface can be divided into three stages: nano‐crystallisation, mechanical alloying and lubricating oil crack deposition.

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“…In the early stage, our group has studied the synthesis of MSH at different temperatures and reaction times and good tribological properties are obtained when MSH is used as lubricant additive [15]. Moreover, its tribological properties are further advanced by combining it with carbonaceous materials, such as graphene [16], oleic acid [17][18][19], PTFE [20], gelatin [21,22], and glucose [23]. However, the dispersion stability properties of MSH and its derivatives still need to be solved urgently.…”

Section: Introductionmentioning

confidence: 99%

“…The base oil PAO10 is from Sinopec Research Institute of Petroleum Processing, and its parameters can be found from Ref. [19]. Other chemicals are listed in Table 1 which are all of the analytic grades.…”

Section: Introductionmentioning

confidence: 99%

Excellent Dispersion Stability and Tribological Properties of Biocarbon-based Magnesium Silicate Hydroxide Modified with Oleylamine

Gao

Chang

Wang

et al. 2021

Preprint

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Biocarbon-based magnesium silicate hydroxide(M@C-ON) was synthesized by hydrothermal method with synthesized magnesium silicate hydroxide (MSH) as the template, glucose as carbon source, and oleylamine (ON) as the modified agent. The dispersion stability of M@C-ON as lubricant additive in PAO10 with ON as dispersant was measured by accelerated centrifugal and static sedimentation test. The results showed that M@C-ON, with the help of ON, can be stably dispersed in lubricating oil for at least 15 days. The stable dispersion was attributed to a combination of electrostatic attraction and steric hindrance. Besides, the tribological properties of M@C-ON as lubricant additive was tested under different concentration of additive and dispersant. A continuous carbon layer formed on the contact area and the repairing effect of inner MSH of M@C-ON were considered as the factors to play an anti-wear effect.

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The purification and tribological property of the synthetic magnesium silicate hydroxide modified by oleic acid

Cited by 19 publications

References 23 publications

A review of recent advances in tribology

A review of recent advances in tribology

Characterisation of self‐repairing layer formed by oleic acid modified magnesium silicate hydroxide

Excellent Dispersion Stability and Tribological Properties of Biocarbon-based Magnesium Silicate Hydroxide Modified with Oleylamine

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