CATIONIC POLYMERS AS EFFECTIVE WATER-BASED LUBRICANT ADDITIVES
Journal Title: Tribologia - Year 2011, Vol 239, Issue 5
Abstract
Studies on water as a lubricant base are being carried out primarily because of ecological considerations. Attempts are being made to improve its unfavourable tribological and physicochemical properties (e.g. corrosive action) by incorporating additives. In this paper, surface-active cationic polymers have been suggested as solution components. The polymers are Polyquaternium-7 (PQ7, a copolymer of diallyldimethylammonium chloride and acrylamide) and Polyquaternium-47 (PQ47, a terpolymer of acrylic acid, methacrylamidopropyl trimethyl ammonium chloride and methyl acrylate). This subject of study is consistent with current tendencies found in the literature on the subject. The application of cationic polymers to the lubrication of movable elements of living organisms has even been suggested. Physicochemical properties (surface tension, viscosity) and tribological properties (friction coefficient, wear scar diameter) were measured as a function of concentration (1-5%) and load (10, 30 and 50 N). The measurements were carried out using a T-11 tribometer produced at the Institute for Sustainable Technologies – National Research Institute in Radom. It was found that the two cationic polymers were highly effective in reducing motion resistance and wear. A threefold decrease in the coefficient of friction and a 2.5-fold reduction in wear scar diameter were found. The effects of the kind of compound and its concentration as well as the applied loads on the quantities measured are discussed.
Authors and Affiliations
Marian. W. Sułek, Tomasz Wasilewski, Witold Sas
Keywords
Related Articles
- EP ID EP271022
- DOI -
- Views 59
- Downloads 0
THE INFLUENCE OF CARBON ADDITIVES ON THE TRIBOLOGICAL PROPERTIES OF ALUMINUM BASED COMPOSITES OBTAINED BY SINTERING
This paper presents the influence of a type of reinforcement and carbon additives on the tribological properties of composite materials, which were manufactured for potential application in highly loaded friction contact...
THE INFLUENCE OF THE MICROSTRUCTURE OF A CHROMOSILICONIZED LAYER ON THE TRIBOCORROSIVE PROPERTIES EXPOSED TO MINE WATER
This paper presents the results of a study analysing the influence of the microstructure of a chromosiliconized layer produced using C90U steel on the tribocorrosive properties exposed to mine water. The steel coating pr...
DISCUSSION ABOUT THE FUNDAMENTAL PROBLEMS OF TRIBOLOGY: Part 16 SOCIAL FUNCTIONS OF TRIBOLOGY
The article presents the description of the basic functions of tribology as an independent scientific field. It represents an attempt to generalise the tasks of tribology that are quite often formulated in the literature...
Laboratoryjna identyfikacja procesu tarcia w skojarzeniu ciernym żeliwo-żeliwo
W pracy przedstawiono oryginalną metodę laboratoryjnego wyznaczania parametrów procesu tarciowego skojarzenia żeliwo–żeliwo. Omówiono konstrukcję stanowiska badawczego i badanych próbek. Zamieszczono opis i budowę wykorz...
Zużycie łożyskowań ślizgowych ze zmodyfikowaną konstrukcją czopa w przypadku zanieczyszczenia oleju cząstkami ściernymi
W artykule przedstawiono wyniki badań zużycia łożyskowań ślizgowych smarowanych olejem zanieczyszczonym tlenkiem glinu. Przebadano sześć skojarzeń różniących się twardością współpracujących elementów oraz konstrukcją czo...