Effects of a Ultrasonic and salt-shrunk Treatment on the Structure and Physical Properties of Bombyx mori Silk Fibroin Fiber
Silk fibroin (SF) fiber from the Bombyx mori silkworm was treated with the ultrasonic and salt-shrunk treatment, and the structure and physical properties were investigated to elucidate the effects of the two treatments. In conclusion, the weight change of SF was decreased after ultrasonic treatment. The SEM Figures of partially ultrasonic treatment silk fibroin show fractures on the vertical surface, and there appear micro-pores on the cross section surface of silk fibers. The tensile strength and elongation percentage of ultrasonic treated SF were considerably decreased. The silk fiber crinkles and shrinks when the ultrasonic treatment SF treated with calcium salt, and many micro-pores appeared inside the silk fibroin. There are also changes in the aggregation structure; some of the molecule chains are changed from β sheet structure to unregulated structure after salt-shrunk treatment.
Silk fibroin salt-shrunk silk fibroin structure properties
Zha Ming Md. Majibur Rahman Khan Hideaki Morikawa Mikihiko Miura
Faculty of Textile Science and Technology, Shinshu University, Tokida 3-15-1, Ueda, Nagano 386-856, Japan
国际会议
苏州
英文
135-141
2007-09-13（万方平台首次上网日期，不代表论文的发表时间）