Tribological and Antioxidation Synergistic Effect Study of Sulfonate-Modified Nano Calcium Carbonate

He, Zhongyi; Liu, Xiong; Han, Sheng; Chen, Ai-Xi; Jianwei, Qiu; Fu, Xisheng

doi:10.1371/journal.pone.0062050

Cited by 14 publications

(15 citation statements)

References 15 publications

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“…Synergistic behavior of sulfonated calcium carbonate and an ashless antioxidant (N-phenyl-αnaphthylamine (T531)) in hydrogenated oil was investigated and the results suggested that anti-wear and antioxidant effect were synergistically improved in the system [40]. Figure 16.…”

Section: Antioxidants/additives Synergism and Antagonismmentioning

confidence: 99%

Antioxidants Classification and Applications in Lubricants

Soleimani¹,

Dehabadi²,

Wilson³

et al. 2018

Lubrication - Tribology, Lubricants and Additives

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Oxidation is a chemical reaction that occurs in lubricants upon exposure to an oxidizing agent such as oxygen and can be catalyzed by copper and iron. Antioxidants are a group of chemicals that can be used in the formulation of lubricants to stop or reduce the rate of oxidation. Based on the mechanism of action, antioxidants are categorized as primary antioxidants (radical scavengers), secondary antioxidants (Peroxide decomposers), and metal deactivators (complex-forming or chelating agents). Selection of the antioxidants in a formulation is a critical decision that depends on the base oil, application and other ingredients in the formulations. Presence of some other ingredients in the product with antagonistic behavior may suppress the role of antioxidants; however, optimal application of antioxidants with synergistic behavior would increase the stabilization impact of the ingredients on the base oil.

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Section: Antioxidants/additives Synergism and Antagonismmentioning

confidence: 99%

Antioxidants Classification and Applications in Lubricants

Soleimani¹,

Dehabadi²,

Wilson³

et al. 2018

Lubrication - Tribology, Lubricants and Additives

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“…The Zn2p peaks at 1022.2 and 1021.9 eV shows ZnS compound in the tribofilm . The peak Ca2p for 1 and 5% ZDDP+base oil corresponded to CaPO bonds, and the peak at 347.3 eV for 3% ZDDP+base oil shows the existence of calcium carbonate (CaCO 3 ) in the tribofilm …”

Section: Resultsmentioning

confidence: 98%

Tribological behavior of the low‐concentration boric acid and ZDDP lubricating oil mixtures

Özkan

Sulukan

2019

Surface & Interface Analysis

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Zinc dithiophosphate (ZDDP)‐free environmental friendly lubricating oil research studies have gained importance due to the governmental regulations over the last decade. In this study, low concentration boric acid‐base oil and ZDDP‐base oil mixtures were investigated with a ball on flat reciprocating tribometer to evaluate their tribological performances. The tribological performances of 1, 3, and 5% additive and base oil mixtures were evaluated at boundary lubrication condition in three main contexts including wear rates, surface tribochemistry, and friction. Results showed that there was no significant difference between boric acid and ZDDP friction coefficients. However, boric acid showed poor wear resistance when compared with ZDDP and it cannot be an alternative additive alone to ZDDPs.

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“…Reduction of the engine oil viscosity with increasing silica values from 2 g/L to 3 g/L (from 177.56 to 173.68 cSt, respectively) could be attributed to the deposition of the massive bulks and the reduction of their concentration in the engine oil. For calcite, it seemed that relatively large calcite particles (d<40 µm) were deposited in the engine oil [40], and they did not increase the concentration; thus, no significant effect on the oil viscosity was observed. Souza et al [41] found that with increasing the viscosity of engine, oil wear was enhanced.…”

Section: Resultsmentioning

confidence: 98%

The Effect of Calcite and Silica Sand Dust on the Diesel Engine Oil Quality

et al. 2019

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Viscosity, density, pour point, flash point, and oxidation stability are some quality properties of engine oil. The entrance of any contamination into the engine oil can change its properties. In the present study the effect of calcite and silica sand dust particles on the quality of engine oil, namely, Sepahan Oil Production API, SC-CC, SAE 40, was investigated. The presence, amount, and particle size of silica and calcite in the engine oil were determined by X-ray diffraction (XRD), inductively coupled plasma spectroscopy (ICP), and energy dispersive X-ray spectroscopy (EDX), respectively. The concentrations of the silica and calcite particles (0, 1, 2, and 3 g/L) were used according to the dust conditions in the east of Isfahan, Iran. The quality of the oil was measured after 20 hours of the engine operation. The results showed viscosity, density, and the pour point of the engine oil were significantly (P<0.05) enhanced with the increase in the silica content, and its oxidation stability was decreased. However, no significant change was observed in the engine oil flash point. The calcite particles, except for the oil flash point, did not have any significant effects on the oil quality.

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Tribological and Antioxidation Synergistic Effect Study of Sulfonate-Modified Nano Calcium Carbonate

Cited by 14 publications

References 15 publications

Antioxidants Classification and Applications in Lubricants

Antioxidants Classification and Applications in Lubricants

Tribological behavior of the low‐concentration boric acid and ZDDP lubricating oil mixtures

The Effect of Calcite and Silica Sand Dust on the Diesel Engine Oil Quality

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