Grafting Modification On Silk Fiber With Methacryloyloxyethyl Trimethylammonium Chori-bc

In this paper, for the purpose of improving the silk properties, graft copolymerization of cationic compound on silk fiber was studied according to silk fiber structure characters. Two initiators, Ammonium Cerium(â…£) nitrate(CAN) and Potassium Persul phate(KPS), and two kinds of initiation methods, plasma treatment and radiation treatment, were used to initiate graft copolymerization between cationic compound and silk. And other influences of initiator concentration, radiation dose, compound concentration, pH value, temperature and reaction time of graft copomerization were shown and optimized method can be derived from the experiment results. The physical properties of ungrafted and grafted silk fiber were tested to find the changes of grafted silk fiber. And other analysis methods like infrared spectroscopy(IR), scanning electron micrograph photographs(SEM), wide-angle X-ray diffraction patterns(WAXD), thermogravimetric analysis(TGA) ,differential scanning colorimetry(DSC) and amino acid analysis were done to study the graft copolymerization and verify reaction mechanism. In the end, good antibacterial effect was shown by experiment.