Studies on the Glycolysis Behavior of Polyurethane Fiber Waste with Diethylene Glycol |
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| Authors: | Jingrong Wang Dajun Chen |
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| Institution: | (1) College of Material Science and Engineering, Donghua University, Shanghai, 200051, P. R. China;(2) The State Key Laboratory of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, 200051, P. R. China |
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| Abstract: | Glycolysis behavior of polyurethane fiber waste with diethylene glycol (DEG) was studied. The glycolysis products were separated into two phases, white waxy material and brown liquid via freezing process. The white waxy material was characterized by Flourier Transform Infrared spectrometer. It has been proved that the glycolysis process of the fiber waste is affected by the reaction temperature and time. The glycolysis kinetics was investigated by reacting the waste in a twin-screw-Micro Compounder. A second-order kinetic model for the glycolysis was adopted, and the experiment data fit it quite well. The rate constants and the activation energy of glycolysis process were calculated. |
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| Keywords: | Polyurethane fiber waste Glycolysis Diethylene glycol Kinetic analysis |
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