Results 31 to 40 of about 1,257 (175)
Impact of molecular structure on the lubricant squeeze-out between curved surfaces with long range elasticity [PDF]
, 2006 The properties of butane (C4H10) lubricants confined between two approaching solids are investigated by a model that accounts for the curvature and elastic properties of the solid surfaces. We consider the linear n-butane and the branched iso-butane. For
B. N. J. Persson +4 more
core +3 more sources
Zhongguo youzhi, 2022 为了制备新型柴油抗磨剂，以油酸甲酯、马来酸酐和甲醇为原料，合成了油酸甲酯基琥珀酸单甲酯。采用电喷雾电离质谱、傅里叶红外光谱、核磁共振氢谱、核磁共振碳谱等对油酸甲酯基琥珀酸单甲酯的结构进行表征，采用热重分析法对其热稳定性进行分析，同时采用高频往复试验机法（HFRR）考察其在低硫柴油中的抗磨效果。结果表明：油酸甲酯基琥珀酸单甲酯化合物具有典型的—CC—、—COOH以及—COOCH3结构特征以及良好的热稳定性，可有效改善低硫柴油的润滑性能；在加剂量为200 μg/g时即可使低硫柴油满足润滑性使用要求 ...
夏鑫，蔺建民，李妍，陶志平 XIA Xin， LIN Jianmin， LI Yan， TAO Zhiping
doaj +1 more source
Indonesian Journal of Chemistry, 2022 The present work aims to study the synthesis of 2-hydroxyethyl esters from castor oil and its lubrication properties, promising as a lubrication bio-additive in low sulfur diesel fuel.
Arizal Firmansyah +4 more
doaj +1 more source
The Effect of Nanoparticle Additives on the Lubricity of Diesel and Biodiesel Fuels
Lubricants, 2023 Fuel lubricity is an essential property that ensures the longevity end efficiency of diesel CI engines. Nanomaterials have been shown to have the potential to improve lubricity in many different lubricating substances, including fuels.
Vida Jokubynienė +2 more
doaj +1 more source
Frontiers in Physiology, 2011 The purpose of this study was to examine the effect of maturation on post-exercise hemodynamic and autonomic responses. Fifty-five highly-trained young male soccer players (12-18 yr) classified as pre-, circum- or post-peak height velocity (PHV ...
Martin eBuchheit +4 more
doaj +1 more source
Journal of Applied Chemistry, Volume 2016, Issue 1, 2016., 2016 In this paper, two kinds of different biodiesel were tested in terms of their impact on wear resistance of Si‐DLC coated 100Cr6 flat worn by an oscillating 100Cr6 ball. The knowledge about the tribological behaviour of different types of biodiesel is rare. Rape and soybean are two of the most common natural sources for biodiesel production.
Annett Dorner-Reisel +4 more
wiley +1 more source
Сhanging the lubricity of diesel fuel with vegetable oil additive
Вестник СибАДИ, 2021 Intriduction. The environmental safety of cars with a diesel engine does not lose its relevance. In the conditions of stricter requirements for diesel fuel, the content of many substances harmful to the environment, including sulfur, is not allowed.
S. N. Krivtsov, T. I. Krivtsova
doaj +1 more source
Effect of fatty acid composition of methyl and ethyl esters on the lubricity at different humidities [PDF]
, 2016 Lubricity of individual fatty acid methyl or ethyl esters and biodiesel fuels has been measured using a high frequency reciprocating rig (HFRR). Tests have been carried out varying the ambient humidity to assess the effect of this parameter on the ...
Bolonio Martín, David +3 more
core +2 more sources
Journal of Fuels, Volume 2015, Issue 1, 2015., 2015 In 2012, a new specification for synthetic fuels containing up to 7% biodiesel (FAME) was approved (CEN TS 15940). This specification allows the sale of neat paraffinic diesel, such as Gas‐to‐Liquids (GTL) diesel, to captive fleets in Europe. Several aspects are important in the final end‐use application, including the stability of the fuel.
S. de Goede +6 more
wiley +1 more source
The Impact of Fatty Acid Diisopropanolamides on Marine Gas Oil Lubricity
Lubricants, 2017 In this study, seven mixtures of diisopropanolamides that were synthesized from various vegetable oils (sunflower oil, soybean oil, cotton seed oil, olive oil, tobacco seed oil, coconut oil, used frying oil) were used as lubricating additives in a low ...
George Anastopoulos +5 more
doaj +1 more source