Tribological Properties of Polypropylene Adipate Base Oil Containing &lt;i&gt;In Situ&lt;/i&gt; Catalytically Dispersed Spherical Nano-MoS&lt;sub&gt;2&lt;/sub&gt;/Sericite

Xia, Yating; Li, Zhixiang; Lin, Qingqing; Hu, Kunhong

doi:10.2474/trol.19.157

Tribology Online

2024

DOI: 10.2474/trol.19.157

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Tribological Properties of Polypropylene Adipate Base Oil Containing <i>In Situ</i> Catalytically Dispersed Spherical Nano-MoS<sub>2</sub>/Sericite

Yating Xia,

Zhixiang Li,

Qingqing Lin

et al.

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2024

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Cited by 1 publication

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Tribological performance of di-n-octyl sebacate synthesized with carboxylated nano-MoS₂/sericite as catalyst

Gong,

Li,

Lin

et al. 2024

ILT

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Purpose This study aims to explore the synthesis and tribological performances of di-n-octyl sebacate (DOS) synthesized with spherical nano-MoS2/sericite (SMS) and carboxylated SMS (CSMS) as catalysts. Design/methodology/approach SMS and CSMS were used as esterification catalysts to synthesize DOS from sebacic acid and n-octanol. The two catalysts were in situ dispersed in the synthesized DOS after the reaction to form suspensions. The tribological performances of the two suspensions after 20 days of storage were studied. Findings CSMS was more stably dispersed in DOS than SMS, and they reduced friction by 55.6% and 22.2% and wear by 51.3% and 56.5%, respectively. Such results were mainly caused by the COOH on CSMS, which was more conducive to improving the dispersion and friction reduction of CSMS than wear resistance. Another possible reason was the difference between the dispersion amounts of CSMS and SMS in DOS. The sericite of SMS was converted into SiO2 to enhance wear resistance, while that of CSMS only partially generated SiO2, and the rest still remained on the surface to reduce friction. Originality/value This work provides a more effective SMS catalytical way for DOS synthesis than the traditional inorganic acid catalytical method. SMS does not need to be separated after reaction and can be dispersed directly in DOS as a lubricant additive. Replacing SMS with CSMS can produce a more stable suspension and reduce friction significantly. This work combined the advantages of surface carboxylation modification and in situ catalytic dispersion and provided alternatives for the synthesis of DOS and the dispersion of MoS2-based lubricant additives.

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Tribological performance of di-n-octyl sebacate synthesized with carboxylated nano-MoS₂/sericite as catalyst

Gong,

Li,

Lin

et al. 2024

ILT

View full text Add to dashboard Cite

show abstract

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Tribological Properties of Polypropylene Adipate Base Oil Containing <i>In Situ</i> Catalytically Dispersed Spherical Nano-MoS<sub>2</sub>/Sericite

Cited by 1 publication

References 41 publications

Tribological performance of di-n-octyl sebacate synthesized with carboxylated nano-MoS₂/sericite as catalyst

Tribological performance of di-n-octyl sebacate synthesized with carboxylated nano-MoS₂/sericite as catalyst

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Tribological Properties of Polypropylene Adipate Base Oil Containing <i>In Situ</i> Catalytically Dispersed Spherical Nano-MoS<sub>2</sub>/Sericite

Cited by 1 publication

References 41 publications

Tribological performance of di-n-octyl sebacate synthesized with carboxylated nano-MoS2/sericite as catalyst

Tribological performance of di-n-octyl sebacate synthesized with carboxylated nano-MoS2/sericite as catalyst

Contact Info

Product

Resources

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Tribological performance of di-n-octyl sebacate synthesized with carboxylated nano-MoS₂/sericite as catalyst

Tribological performance of di-n-octyl sebacate synthesized with carboxylated nano-MoS₂/sericite as catalyst