Copolymerization Modification Process of OCC Fibers Grafted by Hexanelactam and Characterization of the Grafted Products

摘要

The grafting copolymerization modification of OCC fibers with hexanelactam using potassium persulphate-sodium bisulfite as initiator under alkaline medium was discussed in this paper. The optimum process parameters of the grafting reaction were followed: the ratio of modifier dosage to fiber was 0.5, the ratio of initiator dosage to fiber was 0.08, the ratio of potassium persulphate to sodium bisulfite was 5:4, the reaction time was 2.5h, the reaction temperature was 60°C, The maximum graft ratio and the mechanical properties of handsheet could be obtained at the optimum process conditions. Finally, the structures of the grafted products were characterized by means of fourier transform infrared spectroscopy (FTIR).