Abstract:

The interior  morphology and structure of the  expended tussah silk fiber were studied carefully by scanning electron microscopy(SEM) and with the help of Raman spectroscopy,   attenuated total reflection-Fourier transform infrared(ATR-FTIR) spectroscopy and   X-ray diffraction(XRD). Meanwhile,  the thermal and mechanical properties of such kind of silk were also  investigated. The results indicate that the molecular chain of silk protein in the expanded tussah silk fiber was highly oriented,  in which the conformation was dominated by β-sheet. The well-performed silk fiber was made of many band-shaped micro-fibers aligned along its long axis.

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