Abstract
Functional fiber based on butyl methacrylate-hydroxyethyl methacrylate copolymer and low density polyethylene was prepared via the method of gelation-spinning, and then the kinetics model and mechanism of organic matter absorption into the functional fiber were investigated. The results show that a lot of microvoids are constructed within the cross section of the functional fiber, but the microvoids do not make a significant contribution to the absorption of organic matter. The functional fiber can absorb toluene at a quick rate, while it can absorb trichloroethylene and chloroform at a relatively slower rate. The swelling capability of the blend fiber in selected organic matter is weaker than the one of butyl methacrylate-hydroxyethyl methacrylate copolymer fiber, and the swelling behavior is controlled by stress relaxation in the amorphous portion of the polymer blend network. Furthermore, second-order kinetics model is more suitable for describing the process of organic matter absorption than first-order kinetics model.
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