Oil absorption number

BET SSA, Brunauer Emmett Teller specific surface area SSA, specific surface area DBPA, dibutyl phthalate absorption OAN, oil absorption number. 

Although surface areas and particle size distributions undoubtedly play a role in determining maximum loading levels, particle shape, density and heat capacity are also likely to play a role. The complex nature of the inter-relationships between these factors and the lack of suitable metrics has made it difficult to explore this phenomenon beyond a strictly empirical level, however. BET surface area estimates, oil absorption numbers and average particle... 

The particle aspect ratio not only has an influence on the electrode performance, but also on the DBF absorption (DBPA), which affects the electrode manufacturing process. The DBPA gives the amount of dibutyl phthalate (DBP) oil in gram which is absorbed by 100-g carbon (ASTM 281). In contrast, the oil absorption number (OAN) is based on a modified method giving the volume of DBP, which is absorbed by 100-g carbon (ASTM D2414). The OAN, which is commonly used to compare... 

The higher the structure level of the aggregate, the higher is the volume of the voids. DBP absorption (DBPA) today is replaced by the oil absorption number... 

Standard test method for carbon black-oil absorption number of compressed sample (COAN), ASTM Standard ASTM D3493-13, ASTM International, West Conshohocken, PA, 2013. 

Oil Absorption (Value) n Quantity of oil required to wet completely a definite weight of pigment to form a stiff paste when mechanically mixed. The oil absorption number or value of a pigment is the number of... 

D1618 Extractables from Transmittance of Toluene Extract D1619 Carbon Black Sulfur Content D1937 Carbon Black Pellet Mass Strength D2414 Carbon Black Oil Absorption Number (OAN)... 

D3493 Testing Oil Absorption Number (COAN) of Compressed Samples... 

Montmorillonite is usually modified with ammonium salts, in our study the selected ionic liquids were applied as modifying agents for the intercalation of montmorillonite. Surface properties of modified fillers, the zeta potential of suspended solids in the water, the oil absorption number, the impact of modifications on the tendency to agglomerate in the non-polar and polar medium were studied. 

Enhancing the Profitability of Lean Oil Absorption Through Simulation, GasTIPS , Fail 1996, Volume 2, Number 3, p.38... 

Ohmic losses, in fuel cell voltages, 12 207 Ohmic polarization, batteries, 3 425—426 Ohnesorge number, 23 183, 190 Oil absorption, by silica, 22 371 Oil additives... 

Another important property is the structure (see Section 4.1) which characterizes the coalescence of primary particles into aggregates resembling chains or bunches of grapes. The dibutyl phthalate (DBP) absorption is commonly accepted as a measure for the carbon black structure. Due to absorption phenomena the DBP number increases with increasing specific surface area. Oil absorption (or, in general, the vehicle demand) is as well an indicator for the structure, but it also depends on the wettability of the black surface. Since linseed oil is a polar system, oil absorption declines as the concentration of surface oxides rises. 

A number of sorbents have been proposed to clean water surfaces from oil [318]. The use of hydrophobic aerosil was proposed for this purpose, which, however, can hardly be accomplished for economic reasons. More promising seems to be the proposal to use natural materials for oil absorption, such as turf, diatomite, vermiculite, swelled perlite. A method has been proposed for the modification of perlite by a consequent treatment with cationic surfactants and higher carboxylic acid salts. Such modification of swelled perlite increases its oil capacity up to 600%, the water absorption decreases 10 -100-fold, and the sinkability decreases considerably. The degree of oil removal from the water surface is, according to in vitro tests data, 98 - 99%. Methods have been found to use oil-saturated sorbents. 

Oil Absorption (DIN EN ISO 787, Part 5). The oil number is the amount of linseed oil that is absorbed by a pigment or extender sample under defined conditions. The oil number depends on the nature of the extender, its particle size distribution, packing density, and specific surface area. 

Addition of silica to a rubber compound offers a number of advantages such as improvement in tear strength, reduction in heat buildup, and an increase in compound adhesion in multicomponent products such as tires. Two fundamental properties of silica and silicates influence their use in rubber compounds ultimate particle size and the extent of hydration. Other physical properties such as pH, chemical composition, and oil absorption are of secondary importance. 

Without reinforcement by heat aging the gel dries to hard densft granules, but when prepared as described, it is obtained as soft pellets readily dispersible to particles of colloidal dimensions. A typical product had an oil absorption of 4.54 cm g > which corresponds to a volume porosity of 0.91 cm cm. or an average coordination number about 3. The pore diameter was about 27 nm and ultimate particles were about 9 nm in diameter. Based on the degree of coalescence, the neck diameter was about 2 nm. 

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