Can anionic polyacrylamide reduce dye adsorption rate?

Nevertheless, the rapid adsorption rate of dyes can impact the evenness of dyeing. This study explores the use of anionic polyacrylamide (APAM) in the modification bath to reduce dye adsorption rate and enhance dye desorption during cellulose fibers dyeing.

Does anionic polyacrylamide improve dyeing kinetics?

Dyeing kinetics results demonstrated that the modification with anionic polyacrylamide reduced the adsorption rate of reactive dye and improved the level dyeing property. However, there were no significant changes in final dye uptake, dye fixation, washing and rubbing fastness.

Does anionic polyacrylamide affect the electrostatic potential of cotton fibers?

The adsorption isotherm model fitting and analysis of electrostatic potentials revealed that the affinity between dyes and fibers weakened after treatment with anionic polyacrylamide, leading to a decrease in the electrostatic potentials of cotton fibers.

What is anionic polyacrylamide (Apam)?

Anionic Polyacrylamide (APAM) is a very long chain, high molecular weight organic polymer produced from natural gas, with characteristics which make it useful as the anionic agent for treating cotton fabric.

What is polyacrylamide used for?

Polyacrylamide (PAM) is a collective term for polymers obtained by the homopolymerization or copolymerization of acrylamide monomers under the action of an initiator. It can be used as a coagulant, retention aid, sludge dewatering agent, and flocculant sedimentation agent, among other uses, and has a wide range of applications.

What is polyacrylamide (PAM) used for?

In raw water treatment, polyacrylamide (PAM) is used together with activated carbon for the coagulation and clarification of suspended particles in domestic water; in sewage treatment, polyacrylamide (PAM) can be used for sludge dewatering; in industrial water treatment, polyacrylamide (PAM) is primarily used as a formula agent.