Novel sericin‐fixing agent containing rare‐earth ion for weighting silk fiber
2011
Wei, Jun | Qiu, Jun | Lu, Rong
Silk fibers were weighted with different weight gain rate by using a novel sericin‐fixing agent containing rare‐earth ion. Laser Raman spectra, scanning electron microscope (SEM), and amino acid analysis were studied to characterize the structures of weighted fibers. Laser Raman spectra verified that the content of the highly oriented β‐sheet conformation decreased in the weighted fibers. Amino acid analyses showed that the content of polar amino acid increased with the increase in weight gain rate. SEM analyses showed that the sericin was successfully fixed on the surface of the fibroin. Moreover, the mechanical and dyeing properties of the weighted fibers were also investigated. The results indicate that there was no significant difference in breaking strength and elongation between the weighted fibers and the control; the equilibrium moisture content and the color strength value (K/S) of the weighted fibers increased with increasing weight gain rate.
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