Badanie właściwości użytkowych ekologicznych smarów wytworzonych na olejowych bazach roślinnych

Drabik, J.; Trzos, M.; Pawelec, E.; Wrona, M.; Kozdrach, R.; Duszyński, G.; Piątkowski, Marek

doi:10.15199/62.2018.12.38

Cited by 5 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To the tribological tests was used the lubricating composition, which was prepared using the nontoxic ingredients, that are a dispersing and dispersed phase [48][49][50][51]. As a dispersing phase, the vegetable oil with very good physicochemical properties was used.…”

Section: The Methodology Of Researchmentioning

confidence: 99%

The Tribological and Rheological Properties of Vegetable Lubricating Grease Modified of TiO2 Nanoparticles

Kozdrach

2024

Tribol. Ind.

View full text Add to dashboard Cite

The article presents the results of tribological and rheological research of lubricating composition modified of various content of titanium dioxide. The analysis of anti-wear properties during the test for the tested lubricating composition indicates a significant change in this parameters for lubricants modified of titanium dioxide. A change of the value of evaluated tribological parameters leads to change in the structure of the composition carried out tests and a change in the effectiveness of the tribological protection of the tribosystem. The content of the thickener, base of oil and additive in the lubricant structure affects the level of the anti-wear properties, as evidenced by the results obtained during the tribological tests presented in this article. Also, the tribological tests were carried out with the T-02 four-ball machine for the base grease, i.e. without a modifying additive, and compared with the results obtained for lubricating greases modified with various amounts of titanium dioxide. The results of welding load, limiting pressure of seizure, scuffing load, limiting load of scuffing and limiting load of wear were used to evaluate the tribological properties. Based on the results of tribological tests of vegetable lubricating compositions, it was found, that the addition of titanium dioxide changed the anti-wear and anti-seizure properties of the vegetable lubricating compositions under study. The introduction of various amount of titanium dioxide caused an increase of dynamic viscosity at lower shear rates and significant changes of viscosity in the low temperatures. The introduction of modifier led to the decrease of yield point value from content value of used additive of tested lubricating compositions.

show abstract

Section: The Methodology Of Researchmentioning

confidence: 99%

The Tribological and Rheological Properties of Vegetable Lubricating Grease Modified of TiO2 Nanoparticles

Kozdrach

2024

Tribol. Ind.

View full text Add to dashboard Cite

show abstract

“…The lubricating compositions were developed using nontoxic components to constitute the dispersion and dispersed phases. As a dispersion phase, vegetable oils and mixtures of vegetable and mineral oils with the best tribological and physicochemical properties were used (Drabik et al, 2018b;Iłowska et al, 2018;Szmatoła et al, 2018;Kozdrach, 2020). Abyssinian oil was used as a vegetable oil because it is an inedible oil and has very good physicochemical, tribological, and rheological properties.…”

Section: Materials and Research Methodologymentioning

confidence: 99%

The influence of base oil type on the rheological properties of ecological lubricating greases

Kozdrach¹

2021

View full text Add to dashboard Cite

The article presents the results of research on the influence the type of base oil in lubricating compositions has on the rheological parameters of selected lubricants. Vegetable, mineral, and synthetic dispersion phases were used to produce lubricating greases. The modified amorphous silica was used as the dispersed phase. However, as a modifying additive was used a substance containing the antioxidants, corrosion inhibitors, and EP/AW additives. The experiments on rheological properties were carried out using a Physica MCR 101 rotational rheometer (manufactured by Anton Paar), equipped with a diffusion air bearing and connected to a pneumatic supply – an oil-free Jun-Air compressor and air drying block. The device is equipped with a Peltier system for temperature control in the range of –20°C to 200°C and an external thermostatic VISCOTHERM V2 system, working in the temperature range of –20°C to 200°C. The rheometer control and measurement data analysis were performed using Rheoplus software. The tests were carried out using a cone-plate measuring system with a shear rate range of 0.01–100 s-1 at 20°C for lubricating compositions prepared on various oil bases. To evaluate the value of rheological parameters, the results of tests of the dependence between shear stress and shear rate (flow curves) were used. For the theoretical determined on the flow curves, the following rheological models were used: Bingham, Herschel–Bulkley, Casson, and Tscheuschner. The values of the shear stress (yield point) in depending on the type of dispersion phase has changed. This proves that the use of a base oil with the appropriate functional properties does not weaken, but reinforces the spatial structure of a lubricating grease. It has an important meaning when selecting construction parameters when designing a central lubrication system with grease made from a vegetable oil base (Abyssinian oil). The rheological properties of the lubricating grease are influenced by the type of base oil and thickener, any additives in the grease, the production technology of the grease, and the conditions in which it is used. The tests revealed an important influence of the base oil on the rheological parameters that describe the behaviour of lubricating compositions subjected to stresses and strains in a lubricating system.

show abstract

“…A lubricating grease produced on the base of epoxy resin was used for the tests (grease A) and for comparison of lubricating greases based on high quality hydrotreated mineral oil (grease B) [19], based on refined vegetable oil (grease C) [20][21][22][23][24][25] and on the base of high-viscous synthetic oil (grease D) [26]. The information concerning the use of materials is included in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…The higher viscosity of the dispersion phase, the lower the tendency for tribological wear. This can be explained by increasing the thickness of the oil film, which allows reduction of the contact frequency of surface irregularities [24,25,28,30,34,37].…”

Section: Symbol Of Lubricating Compositionmentioning

confidence: 99%

The Tribological, Physico-Chemical and Rheological Properties of Lubricating Grease Produced on Epoxy Resin Base

Kozdrach¹

2020

Tribol. Ind.

View full text Add to dashboard Cite

The article presents the results of physicochemical, tribological, rheological, anticorrosive and oxidation tests of lubricating grease produced on the base of epoxy resin and thickened of amorphous silica Aerosil®. The tests for lubricating grease were carried out and then compared with the test results obtained for lubricants prepared on the mineral, vegetable and synthetic oil base. The application of epoxy resin as a dispersion phase affects the increase in relation to compositions prepared on the mineral, vegetable and synthetic oil base of resistance of the top layer on scuffing and wear for tested lubricating compositions. The application of the epoxy resin as a dispersion phase of lubricating greases demonstrated a synergistic interaction with the used thickener and a significant improvement of the dropping point in relation to the compositions produced on conventional oil bases. The lubricating grease produced on the base of epoxy resin has a much longer oxidation induction time and better anticorrosive properties than lubricating compositions produced on other base oils. The application of epoxy resin as a dispersion phase of lubricating greases caused a significant increase of dynamic viscosity from shear rate and in the range of low temperatures in comparison to compositions produced on conventional base oils.

show abstract

Badanie właściwości użytkowych ekologicznych smarów wytworzonych na olejowych bazach roślinnych

Cited by 5 publications

References 0 publications

The Tribological and Rheological Properties of Vegetable Lubricating Grease Modified of TiO2 Nanoparticles

The Tribological and Rheological Properties of Vegetable Lubricating Grease Modified of TiO2 Nanoparticles

The influence of base oil type on the rheological properties of ecological lubricating greases

The Tribological, Physico-Chemical and Rheological Properties of Lubricating Grease Produced on Epoxy Resin Base

Contact Info

Product

Resources

About