Dispersant - Wikipedia
网页A dispersant or a dispersing agent is a substance, typically a surfactant, that is added to a suspension of solid or liquid particles in a liquid (such as a colloid or emulsion) to improve the separation of the particles and to prevent their settling or clumping. [1]
Dispersant Additives - SpringerLink
网页Dispersancy pertains to the ability to suspend by-products of combustion such as soot particles, and lubricant degradation, such as resins, varnishes, lacquers, and carbon deposits. The overall performance of a dispersant depends on its structural features: the hydrocarbon chains and the polar moieties.
New Method for Evaluating Lubricant Dispersancy - Machinery Lubrication
网页The objective of the engine test (DV4TD – CEC-L-93-04) is to evaluate the effect of combustion soot on engine oil viscosity increase and piston cleanliness. This procedure simulates high-speed highway service in a diesel-powered passenger car.
Functions and Properties of Lubricating oil on Ships
网页2015年10月12日 · What is detergency and dispersancy ? It is a chemical additive called detergent which has a property of preventing the deposition of carbon deposits and wash away with the lube oil. Dispersant additive is added to divide the larger size deposits into tiny particles to be carried in a colloidal suspension evenly throughout the bulk of oil, which ...
Standard Test Method for Measuring the Merit of Dispersancy of …
网页2024年7月16日 · Significance and Use. 5.1 Dispersancy is the property that allows oil to suspend and carry away pollutants of diverse sources such as soot from combustion, metallic particles from wear, corrosion of mechanical parts, and insoluble products resulting from the aging of the oil.
Lubricating Oils Evaluation of Dispersancy Capacity of Lubricating …
网页2011年7月1日 · Our studies show that the dispersancy capacity of certain types of lubricants is significantly degraded by the presence of specific pollutants, and in particular fatty acid methyl esters of the biofuels, which have a significant impact.
Dispersant-Oil Interactions and Effectiveness Testing
网页The following sections address dispersant chemistry, the physical and chemical interactions of dispersants with oil slicks and droplets, oil chemistry and weathering behavior and how they affect the window of opportunity for effective dispersant applications, and the importance of turbulence for introducing the energy necessary to entrain oil dr...
Dispersancy Testing - Machinery Lubrication
网页To measure the effectiveness of oil in dispersing soot, the ASTM D7899-19 standard "Standard Test Method for Measuring the Merit of Dispersancy of In-Service Engine Oils with Blotter Spot Method" is the most accurate method.
dispersancy是什么意思_dispersancy的翻译_音标_读音_用法_例句…
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网页dispersancy. The dispersancy data presented in Figure 1 also suggest that the substitution of carboxyl group with stronger acidic and bulkier groups (i.e., SA and SS) in an acrylic acid polymer markedly improves the dispersancy power of the polymer. It is also noteworthy that increasing the dispersant concentration from 0.25 to 0.50 ppm results in
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