Abstract:

In order to comprehend the diffraction between structure and properties of colored tussah sille and ordinary tussah silk, high added value tussah silk fabics was researched and developed. The structure and properties of colored tussah silk fibers were investigated and compared with ordinary tussah silk by X-ray diffraction, sonic modulus method, thermal performance analysis and mechanical properties tests. According to the X-ray diffraction intensity curve, the TG curve and the  endothermic peak position are calculated, and the results show that the crystallinity and crientation degree of the colored tussah silk is a little higher than those of ordinary tussah silk. Thestrength of colored tussah silk is 6.5% higher than than ordinary tussah silk, but the elongation decreases by 3.5%, the initial modulus increases by 3.6%. The softness of ordinary tussah silk is superior to that of the colored tussah silk.

Key words: colored tussah silk, aggregation structure, crystallinity, orientation degree, mechanical property