Adsorption Kinetics of Amide Softeners on Cotton Fabrics in Decamethyl Cyclopentasiloxane Medium

The adsorption kinetics of amide softeners on cotton fabrics in decamethyl cyclopentasiloxane (D5) medium is investigated. Pseudo-first-order and pseudo-second-order kinetic models are utilized to analyze the kinetic data. Simultaneously, the kinetic parameters are analyzed to explore the adsorption rate of amide softeners on cotton fabrics. The adsorption process is believed to follow pseudo-second-order kinetics. Based on SEM images, the adsorption of amide softeners on cotton fabrics in D5 medium occurs on the cotton surface. There is no observed diffusion of softeners into the cotton fibers. The adsorption rate of amide softeners on cotton fabrics in D5 medium is much faster than the traditional aqueous system, which may significantly improve the efficiency of softener finishing.