Adhesion of Solid Particles on the Fiber Substrate. IV.

Adhesion-desorption Equilibrium of Hydrated Iron (III) Oxide Particles on the Various Single Fibers

Abstract

Seven staple fibers were compared for adhesion to particulate soils.
In this study, spherical particles of hydrated iron (III) oxide (Fe₂O₃·H₂O) were prepared, and adhesion to various fibers of Fe₂O₃·H₂O in the dispersion medium was examined after 48 h under weak mechanical oscillation at various temperatures (15, 30, 50°C).
The amount of soil per unit external surface area of a fiber (g/m²) was defined as the amount of Fe₂O₃·H₂O adhering to the fiber substrate.
Langmuir type adhesion isotherms were obtained for all staple fibers and were exothermic.
Affinity parameters of the seven fibers in n-heptane/n-tetradecane mixtures (95 : 5) were of the following order : Vinylon>Cupra rayon > Polyester > Nylon >Acryl >Poly (vinylchloride) > Polypropylene.