Research / 2022 / Article / Fig 5

Research Article

Mechanically Reinforced Silkworm Silk Fiber by Hot Stretching

Figure 5

FTIR spectroscopy analysis and illustration showing the structure evolution of the fiber under hot stretching: (a) FTIR spectra of HSSFs; (b) an example showing deconvolution of FTIR spectra in amide I band of HSSFs; (c) contents of β-sheet, random coil/α-helix, and β-turn in different silk fibers; (d) illustration showing the proposed evolution of the secondary structures for relatively small and large stretch ratios.