Adsorption kinetics and thermodynamics of copolymethacrylate fibers to trichloroethylene

The copolymethacrylate fiber with oil absorptive performance was prepared with poly n-butyl methacrylate(PBMA) as monomer and hydroethyl methacylate(HEMA) as potential crosslinking agent.The absorptive kinetics and thermodynamics of the copolymethacrylate fiber to trichlorethylene were studied.The absorbing capacity of copolymethacrylate fiber to trichloroethylene(TCE) was improved with the rise of temperature.The kinetic studies indicated that the adsorption of the copolymethacrylate fiber was in consistent with a pseudo second order kinetic equation,and thermodynamic studies indicated that the absorption behavior could be described by Langmuir and Freundlich equations,but Langmuir equation was more applicable.The activation Gibbs free energy △G indicated that the adsorption was a spontaneous and decalescence adsorption process.