Tenax Adsorption Bench Protocols for Differentiating Saturated and Aromatic Mineral Oils
Tenax TA vapor capture combined with LC-GC-FID and chemical epoxidation provides defensible separation of volatile MOSH and MOAH fractions in paperboard.
Retention Volume
Absorption Capacity
Total amount of fluid that a porous material or a chromatographic column can hold before the solute begins to exit the system defines the saturation limit of the substrate. In paper science, retention volume determines how much liquid chemical or dye the fibers can absorb before the excess drains away. It is a critical factor for sizing and coating applications.
Absorption Dynamic
Interstitial spaces between the cellulose fibers and the internal pores of the fiber walls themselves create the storage capacity for liquids. A high retention volume indicates that a paper grade can carry more functional additives like wet strength agents or pigments. During the coating process, the base sheet must have enough capacity to hold the binder without allowing the water to migrate too quickly into the core.
If the capacity is exceeded, the surface coating becomes brittle and may flake off during printing. Factors such as fiber type and the degree of refining influence the total available space within the sheet.
Testing Parameter
Laboratory methods use water or specialized solvents to quantify this property under standard pressure and temperature conditions. Retention volume remains a primary indicator of the efficiency of chemical uptake in the wet end of the paper machine.