The tribological behaviour and mechanism of action of sulphur‐containing borate esters in rape seed oil

Gong, Qianhong; Yu, Laigui; Ye, Chengfeng

doi:10.1002/jsl.3000190103

Cited by 4 publications

(3 citation statements)

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“…The boundary lubricating and protective film can prevent the direct contact between the sliding surfaces of the steel–steel pair thereby significantly reducing friction and wear. Needless to say, only a very small amount of La is detected by EDS on the worn steel surface lubricated by DIOS containing 0.5% La(BF 4 ) 3 ‐OA additive, which is because, on the one hand, the additive concentration is quite low, and on the other hand, a part of La in the additive may be consumed upon promoting the permeation of B during the sliding process …”

Section: Resultsmentioning

confidence: 98%

“…Needless to say, only a very small amount of La is detected by EDS on the worn steel surface lubricated by DIOS containing 0.5% La(BF 4 ) 3 -OA additive, which is because, on the one hand, the additive concentration is quite low, and on the other hand, a part of La in the additive may be consumed upon promoting the permeation of B during the sliding process. [39] The worn surfaces of upper steel ball lubricated by DIOS containing 0.5% La(BF 4 ) 3 -OA were analyzed by mean of XPS so as to acquire more information about the tribochemical reactions involved during the sliding process. The XPS spectra of B1s, C1s, N1s, O1s, La3d, F1s, and Fe2p on the rubbed steel surfaces are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis of nanostructured lanthanum fluoborate modified by oleylamine and evaluation of its tribological properties as a lubricating additive in synthetic ester

Jin

Yang

Song

et al. 2016

Surface & Interface Analysis

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Lanthanum fluoborate modified by oleylamine [denoted as La(BF4)3‐OA] was synthesized as a potential lubricant additive by direct precipitation method with sodium tetrafluoroborate and lanthanum nitrate [La(NO3)3] as the staring materials and oleylamine (OA) as the surface‐modifying agent in distilled water‐ethanol mixed solvent. The effects of reaction temperature, OA to La(NO3)3 ratio, and surfactant cetyltrimethyl ammonium bromide on the size and shape of as‐synthesized La(BF4)3‐OA were investigated. The crystalline structure and morphology of as‐obtained La(BF4)3‐OA were characterized by X‐ray diffraction, transmission electron microscopy, Fourier transform infrared spectrometry, and X‐ray photoelectron spectroscopy. Moreover, the tribological properties of La(BF4)3‐OA as an additive in dioctyl sebacate, a synthetic ester, were evaluated with a four‐ball machine, and the worn surfaces of the steel balls were analyzed with a field emission scanning electron microscope equipped with an energy dispersive spectrometer accessory. It was found that the as‐synthesized La(BF4)3‐OA exhibits disk‐like nanoflake shape and have a diameter of 10–45 nm, depending on varying synthetic conditions. As‐synthesized La(BF4)3‐OA as an additive in DIOS possesses excellent antiwear and friction‐reduction performance for the steel–steel pair, which is because the as‐synthesized additive simultaneously contain tribologically active elements La, B, and F that facilitate the formation of a boundary lubricating and protecting film on sliding steel surfaces thereby avoiding direct contact of the steel–steel pair and significantly reducing the friction and wear. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Synthesis of nanostructured lanthanum fluoborate modified by oleylamine and evaluation of its tribological properties as a lubricating additive in synthetic ester

Jin

Yang

Song

et al. 2016

Surface & Interface Analysis

Self Cite

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show abstract

“…Furthermore, borate esters possess friction-reducing, antiwear, and antioxidant characteristic when blended in lubricating oils [3]. In the recent decades, some organic borates have been studied [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Hydrolytic stability and tribological properties of N-containing heterocyclic borate esters as lubricant additives in rapeseed oil

Liu

Ren

et al. 2014

Tribology International

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Tribological properties and action mechanism of N,N-dialkyl dithiocarbamate-derived S-hydroxyethyl borate esters as additives in rapeseed oil

Sun

Xue

2009

Wear

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The tribological behaviour and mechanism of action of sulphur‐containing borate esters in rape seed oil

Abstract: Three sulphur-containing borate esters and one borate ester based on boric acid and n-octanol were synthesised. The antiwear and friction-reducing properties of these synthetic compounds as additives in rape seed oil were examined using a four-ball machine.

Cited by 4 publications

References 7 publications

Synthesis of nanostructured lanthanum fluoborate modified by oleylamine and evaluation of its tribological properties as a lubricating additive in synthetic ester

Synthesis of nanostructured lanthanum fluoborate modified by oleylamine and evaluation of its tribological properties as a lubricating additive in synthetic ester

Hydrolytic stability and tribological properties of N-containing heterocyclic borate esters as lubricant additives in rapeseed oil

Tribological properties and action mechanism of N,N-dialkyl dithiocarbamate-derived S-hydroxyethyl borate esters as additives in rapeseed oil

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